* flow.c (mark_used_reg): If a register is unconditionally live,

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2000-05-29  Richard Earnshaw (rearnsha@arm.com)

        * flow.c (mark_used_reg): If a register is unconditionally live, 
        remove any conditional death information.

2000-05-29  Richard Henderson  <rth@cygnus.com>

        * final.c (current_output_insn): New.
        (final_scan_insn): Set it.
        * output.h: Declare it.

2000-05-29  Richard Henderson  <rth@cygnus.com>

        * stor-layout.c (finalize_record_size): Fix typo.

        * jump.c (redirect_jump): Don't emit NOTE_INSN_FUNCTION_END
        if nlabel is null.

2000-05-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (cpp_reader): Remove if_stack.  Change
        potential_control_macro to a cpp_hashnode *.  Add skipping flag.
        * cpphash.h (struct ihash): Change control_macro to a
        cpp_hashnode * and shorten name to cmacro.
        Add NEVER_REINCLUDE constant.

        * cppfiles.c (redundant_include_p): Drop cpp_reader argument.
        Examine the cmacro node directly, no need to call cpp_defined.
        (_cpp_execute_include, read_include_file): Set cmacro to
        NEVER_REINCLUDE, not U"".
        * cpplex.c (cpp_push_buffer): Don't set new->if_stack.
        (cpp_get_token): If pfile->skipping is true, discard text and
        keep scanning until we hit a directive; don't expand macros.

        * cpplib.c (struct if_stack): Remove if_succeeded, add
        was_skipping. Change control_macro to a cpp_hashnode * and
        shorten name to cmacro.  Remove typedef IF_STACK.
        (parse_ifdef), detect_if_not_defined): Return a cpp_hashnode *.
        (conditional_skip, skip_if_group,
        consider_directive_while_skipping): Delete.
        (push_conditional): New.
        (_cpp_handle_directive): Don't process directives other than
        conditionals if we are skipping.

        (do_ifdef, do_ifndef, do_if, do_else, do_elif, do_endif):
        Update to new scheme.
        (validate_else): Skip rest of line here, unconditionally.
        (_cpp_unwind_if_stack): The stack is per-buffer.  Force
        pfile->skipping off.

        (all): Remove `scare quotes' from error messages.

2000-05-29  Richard Henderson  <rth@cygnus.com>

        * function.c (emit_return_into_block): New line_note arg; emit it.
        (thread_prologue_and_epilogue_insns): Attempt to locate a line note
        for the close brace to accompany HAVE_return.  Move all line notes
        following the epilogue to before the NOTE_INSN_EPILOGUE_BEG.

2000-05-29  Richard Henderson  <rth@cygnus.com>

        * longlong.h [__alpha] (count_leading_zeros): New.
        (count_trailing_zeros): New.
        (COUNT_LEADING_ZEROS_0): New.

        * config/alpha/alpha.c (alpha_zero_comparison_operator): New.
        (alpha_split_conditional_move): New.
        * config/alpha/alpha-protos.h: Prototype them.
        * config/alpha/alpha.h (PREDICATE_CODES): Update.
        (CPP_CPU_DEFAULT_SPEC): Fix typo for EV67.
        * config/alpha/alpha.md: Update ffs cix commentary.
        (*ze_and_ne): New.
        (*nabssf2, *nabsdf2): New.
        (*mov[qhsd]icc_internal): Use add_operand.
        (if_then_else constant splitters): New.
        (*cmp_sadd_di, *cmp_sadd_si, *cmp_sadd_sidi): New.
        (*cmp_ssub_di, *cmp_ssub_si, *cmp_ssub_sidi): New.

2000-05-29  Richard Henderson  <rth@cygnus.com>

        * combine.c (force_to_mode) [MINUS]: Convert subtraction from
        a constant to NEG or NOT when conditions allow.

        * combine.c (combine_simplify_rtx): Don't create an if_then_else
        unless both args are general_operand.  Don't canonicalize plus
        to ior unless it helps.

        * toplev.c (rest_of_compilation): Set no_new_pseudos after flow1;
        instead track register_life_up_to_date.  Toggle no_new_pseudos
        around if_convert.  

2000-05-28  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (output_cbranch): Escape '%' characters
        so output_operand doesn't see them.

Sun May 28 18:37:07 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * lcm.c (make_preds_opaque): Fix comment.
        (optimize_mode_switching): Use NORMAL_MODE instead of 
        MODE_USES_IN_EXIT_BLOCK.  Change leftover instance of
        FP_MODE_NONE to no_mode.  Rename MODE_AT_ENTRY to NORMAL_MODE.
        Handle insertions before an existing NOTE_INSN_BASIC_BLOCK.
        * tm.texi (OPTIMIZE_MODE_SWITCHING): Refer to NORMAL_MODE.
        (MODE_USES_IN_EXIT_BLOCK): Delete.
        (MODE_AT_ENTRY) Rename to NORMAL_MODE.
        * sh.h (MODE_USES_IN_EXIT_BLOCK): Delete.
        (MODE_AT_ENTRY): Rename to NORMAL_MODE.
        (MODE_NEEDED): Don't look for USE.
        (EPILOGUE_USES): Define.

Sun May 28 23:26:59 2000  Philippe De Muyter <phdm@macqel.be>

        * mklibgcc.in (all): Variable initialised to `libgcc'.

2000-05-28  Gabriel Dos Reis  <gdr@codesourcery.com>

        * toplev.h (skip_leading_substring): New macro.
        * toplev.c (decode_f_option): Use skip_leading_substring instead
        of strncmp.
        (decode_W_option): Likewise.

2000-05-28  Nick Clifton  <nickc@cygnus.com>

        * tm.texi (CONDITIONAL_REGISTER_USAGE): Document that it can
        modify reg_names.

2000-05-28  Richard Henderson  <rth@cygnus.com>

        * regclass.c (record_operand_costs): Protect reg_changes_size
        with CLASS_CANNOT_CHANGE_SIZE.

        * loop.c (instrument_loop_bct): Set JUMP_LABEL on the new insn.

2000-05-28  Richard Henderson  <rth@cygnus.com>

        * function.c (diddle_return_value): A pcc-style struct return
        returns a pointer.

2000-05-27  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c: Read files in, using mmap if possible, then
        prescan them separately.
        (read_file, read_with_read): New functions.
        * cpplex.c: Don't define UCHAR_MAX.
        (_cpp_read_and_prescan): Rename to _cpp_prescan.  Don't read
        the file here.

        * cppinit.c (handle_option): Automatically define __cplusplus,
        __OBJC__, __ASEEMBLER__, _LANGUAGE_FORTRAN here when we see
        the respective -lang switch.

        * cpphash.h (enum node_type, struct hashnode, _cpp_lookup
        prototype): Move to...
        * cpplib.h: ... here.  Rename struct hashnode to struct
        cpp_hashnode and give it a typedef.  Rename _cpp_lookup to
        cpp_lookup.  Add 'fe_value' slot, a union tree_node *.

2000-05-27  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (movsi): Constify 'name'.

        * regclass.c [CLASS_CANNOT_CHANGE_SIZE]
        (class_can_change_size): New variable.
        (reg_changes_size): New variable.
        (init_reg_sets_1): Initialise class_can_change_size.
        (record_operand_costs): Remove subreg_changes_size.
        Don't pass it around.  Instead update reg_changes_size.
        (regclass): Initialise and free reg_changes_size.  If a register
        changes size, don't preference it to a class that contains
        registers that can't change size.
        (record_reg_classes): Don't look at subreg_changes_size.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * print-rtl.c (reg_names): Remove const.
        * regclass.c (reg_names): Likewise.
        * regs.h (reg_names): Likewise.
        * hard-reg-set.h (reg_names): Likewise.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * config/rs6000/rs6000.md (untyped_call): Use GEN_CALL.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (alpha_does_function_need_gp): Test
        TARGET_PROFILING_NEEDS_GP in the if, instead of with an ifdef.
        (alpha_expand_prologue): Emit prologue_mcount if needed.
        * config/alpha/alpha.h (TARGET_PROFILING_NEEDS_GP): Default to 0.
        * config/alpha/alpha.md (prologue_mcount): New.
        * config/alpha/linux.h (FUNCTION_PROFILER): Remove.
        (TARGET_PROFILING_NEEDS_GP): Undef before redefining.
        * config/alpha/netbsd.h: Likewise.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * config/alpha/elf.h (SELECT_SECTION): Mirror Kenner's May 19
        change to config/elfos.h.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (resource.o): Depend on except.h.
        * except.h (output_exception_table_data): Prototype.
        * genconfig.c (gen_peephole2): Prototype.
        * genemit.c (main): Include ggc.h.
        * genoutput.c: Revert parts of last change: include errors.h
        (main): Set progname.
        * recog.c: Include hard-reg-set.h before recog.h.
        * resource.c: Include except.h.

        * config/alpha/alpha-protos.h (alpha_arg_info_reg_val): Protect
        with RTX_CODE.
        (alpha_write_linkage): Protect with BUFSIZ.
        (alpha_need_linkage): Update prototype.
        * config/alpha/alpha.c (function_arg): Move VMS code here.
        (alpha_links_base): Remove.
        (alpha_links): New.
        (mark_alpha_links_node, mark_alpha_links): New.
        (alpha_write_one_linkage): New.
        (alpha_need_linkage): Use a splay tree.  Build the linkage symbol.
        (alpha_write_linkage): Use splay_tree_foreach.
        * config/alpha/alpha.md (call_vms): Use alpha_need_linkage
        to get the linkage symbol.
        (call_value_vms): Likewise.
        * config/alpha/elf.h (output_file_directive): Remove decl.
        (ctors_section, dtors_section): Prototype.
        (sbss_section, sdata_section): Prototype.
        * config/alpha/vms.h (FUNCTION_ARG): Remove.
        (readonly_section, link_section, literals_section): Prototype.
        (ctors_section, dtors_section): Prototype.
        (vms_valid_decl_attribute_p): Remove decl.
        (alpha_arg_type, alpha_arg_info_reg_val): Likewise.

2000-05-27  Geoff Keating  <geoffk@cygnus.com>

        * reload.c (get_secondary_mem): Don't widen floating-point modes.

        * combine.c (subst): Honour CLASS_CANNOT_CHANGE_SIZE when
        substituting the REG in a (subreg:X (reg:Y ...)).

2000-05-28  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (_cpp_lex_line): Merge vertical space.  Flag
        first token of a line BOL.  Update EOF code for this.
        Remove illegal directive check - it appears in the (not
        yet committed) caller.
        * cpplib.h (BOL): New flag.

2000-05-28  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (_cpp_init_toklist): No comment space to initialise.
        (_cpp_free_toklist): No comment space to free.
        (expand_comment_space): Remove.
        (save_comment_space): Place the comment in the current token and
        not in a separate comment space.
        (_cpp_lex_line): Save comments during plain code and #define
        directives only.
        * cpplib.h (struct _cpp_toklist): Remove comment space.

2000-05-28  Neil Booth  <NeilB@earthling.net>

        * cppexp.c (parse_assertion): Supply extra argument to
        _cpp_init_toklist.
        * cpplib.c (do_assert, do_unassert): Similarly.
        * cpphash.h (_cpp_init_toklist) Update.
        (_cpp_expand_token_space): New.
        (DUMMY_TOKEN, NO_DUMMY_TOKEN): New.
        * cpplex.c (_cpp_init_toklist): New argument.
        (parse_string2): New argument multiline_ok.
        (spell_token): Take a const cpp_token *.
        (INIT_NAME): Replace with INIT_TOKEN_NAME.  Update tokens_used.
        (SPELL_ macros): Replace with enum.
        (expand_token_space): Replace with _cpp_expand_token_space.
        Take COUNT argument.
        (IS_DIRECTIVE): Update.
        (_cpp_lex_line): Update token structure before parsing number.
        Don't assume start at beginning of token list.
        (save_comment): Use INIT_TOKEN_NAME.

2000-05-27  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in (stage1_warn_cflags): Add -Wstrict-prototypes
        -Wmissing-prototypes.
        * configure: Regenerate.
        * gcc.texi: Remove explanation of MD_CALL_PROTOTYPES.

        * builtins.c, calls.c: Change all instances of gen_call_* or
        gen_sibcall_* to GEN_CALL_* and GEN_SIBCALL_*.
        * calls.c (struct_value_size_rtx): Separate definition from
        initialization to avoid unused variable warning.

        * genflags.c (gen_macro): New function.
        (gen_proto): Call it for gen_call_* and gen_sibcall_*.
        (gen_nonproto): Delete.
        (gen_insn): Put all insns on the same obstack.
        (main): Generate prototypes for everything unconditionally.

        * configure.in: Add AC_CHECK_TYPE(ssize_t).  Remove commented 
        out check for wchar_t.
        * acconfig.h: Add template for ssize_t.  Remove @TOP@.
        * system.h: Add infrastructure for defining missing   
        TYPE_MAX/TYPE_MIN macros.  Use it to provide fallback  
        definitions of UCHAR_MAX and SSIZE_MAX.
        * configure: Regenerate.
        * config.in: Regenerate.

        * Makefile.in (libgcc2.ready): Rename to libgcc.ready.
        Depend on $(LANGUAGES) as well as $(GCC_PATCHES) and fixed
        headers.
        (clean): No need to delete libgcc1.a, libgcc1-asm.a,
        libgcc2.a, or libgcc1.null.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (recog.o): Don't depend on resource.h.
        * recog.c: Don't include resource.h.
        (recog_last_allowed_insn): Remove.
        (recog_next_insn): Remove.
        (struct peep2_insn_data): New.
        (peep2_insn_data, peep2_current): New.
        (peep2_next_insn): New.
        (peep2_regno_dead_p, peep2_reg_dead_p): New.
        (peep2_find_free_register): New.
        (peephole2_optimize): Track life information by insn as we go.
        * recog.h: Update declarations.
        * resource.c (find_free_register, reg_dead_p): Remove.
        * resource.h: Remove their declarations.
        * toplev.c: Include hard-reg-set.h before recog.h.

        * genconfig.c (max_insns_per_peep2): New.
        (gen_peephole2): New.
        (main): Call it.
        * genemit.c (output_peephole2_scratches): Generate calls to
        peep2_find_free_register; adjust surrounding code.
        (main): Have insn-emit.c include hard-reg-set.h before recog.h.
        * genrecog.c (change_state): Don't track last_insn.
        (write_action): Write into *_pmatch_len before accepting.
        (write_tree): Adjust peephole2_insns and subroutines to match.

        * config/i386/i386.md (all peepholes): Use peep2_regno_dead_p.

        * config/alpha/alpha.c (hard_fp_register_operand): Mind the mode.
        (hard_int_register_operand): New.
        * config/alpha/alpha-protos.h: Declare it.
        * config/alpha/alpha.h (PREDICATE_CODES): Update.
        * config/alpha/alpha.md (peep2 patterns): Use hard_int_register_operand
        as needed; use peep2_reg_dead_p instead of dead_or_set_p.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * function.c (thread_prologue_epilogue_insns): Don't move the
        line note at the head of the chain.  Only force a lineno note
        before the end of block 0.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * gensupport.c (collect_insn_data): Record the maximum number
        of alternatives, not the last seen.

        * genoutput.c: Don't include errors.h.
        (struct data): Add lineno member.
        (have_error): New.
        (scan_operands): Use message_with_line instead of error.
        (validate_insn_alternatives): Likewise.
        (gen_insn): Accept and store the pattern's line number.
        (gen_peephole, gen_expand, gen_split): Likewise.
        (main): Don't set progname.  Pass line_no to gen_foo.

2000-05-27  Richard Henderson  <rth@cygnus.com>

        * config/d30v/d30v.c (d30v_print_operand): Handle ':'.
        * config/d30v/d30v.h (PRINT_OPERAND_PUNCT_VALID_P): Accept ':'.
        * config/d30v/d30v.md (attr predicable): New.
        (all insn patterns): Mark non-predicable patterns; use %: on the rest.
        (andsi3*): Unify into one pattern.
        (iorsi3*, xorsi3*): Likewise.
        (peephole2 patterns): Use peep2_reg_dead_p; verify not a
        conditional return.
        (old cond_exec patterns): Remove.
        (define_cond_exec): New.

Sat May 27 11:01:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.h (TREE_CODE_LENGTH): New macro.
        * c-common.c (c_find_base_decl): Use it.
        * expr.c (safe_from_p): Likewise.
        * print-tree.c (print_node): Likewise.
        * tree.c (make_node, copy_node, get_identifier): Likewie.
        (first_rtl_op, contains_placeholder_p, substitute_in_expr): Likewise.
        (build, build_nt, build_parse_node, simple_cst_equal): Likewise.
        * fold-const.c (make_range): Likewise.
        (fold): Likewise; also use first_rtl_op.
        * c-iterate.c (collect_iterators): Use first_rtl_op.
        * calls.c (calls_function_1): Likewise; also rename TYPE to CLASS.
        Use IS_EXPR_CODE_CLASS.
        (preexpand_calls): Likewise.
        * ggc-common.c (ggc_mark_trees): Rework to use first_rtl_op
        and TREE_CODE_LENGTH.
        * stmt.c (warn_if_unused_value): If no operands, no unused value.

2000-05-26  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (movsi_internal1): Use '%a1' rather
        than '%1(%*)'.
        (movdi_internal64): Likewise.

        * config/rs6000/rs6000.md: Correct order of operands for DImode
        boolean patterns.

        * config/rs6000/rs6000.c (boolean_or_operator): New function.
        * config/rs6000/rs6000-protos.h (boolean_or_operator): Prototype it.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Add boolean_or_operator.
        * config/rs6000/rs6000.md: Use boolean_or_operator instead of
        boolean_operator for the boolean patterns without NOTs.

        * config/rs6000/rs6000.c (reg_or_logical_cint_operand): Rename
        from reg_or_u_cint_operand.  Change comment and behaviour.
        (logical_operand): Clean up, add assertion.
        (non_logical_cint_operand): Also check for
        reg_or_logical_cint_operand.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Update.
        * config/rs6000/rs6000.md (iorsi3): Use reg_or_logical_cint_operand
        in the expander.
        (xorsi3): Likewise.
        (iordi3): Likewise.
        (xordi3): Likewise.

2000-05-26  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (struct record_layout_info): Rename to (struct
        record_layout_info_s).
        * stor-layout.c (start_record_layout): Replace
        `record_layout_info' with `record_layout_info_s'.

2000-05-26  Richard Earnshaw  <rearnsha@arm.com>

        * flow.c (find_label_refs): New function.
        (find_basic_blocks_1): Call it for each alternative of a call 
        placeholder.

2000-05-26  Richard Earnshaw  <rearnsha@arm.com>

        * ifcvt.c (cond_exec_get_condition): Set test_if to the SET_SRC
        of get_pc.

2000-05-25  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (alpha_comparison_operator): Don't be
        so strict about DImode.
        (alpha_swapped_comparison_operator): Likewise.
        * config/alpha/alpha.md (*setne_internal): Name it.  Allow
        any integer output mode.
        (*setcc_internal): Likewise.
        (*setcc_swapped_internal): Likewise.
        (*movdicc_internal, *movdicc_lbc, *movdicc_lbs): Name them.
        (*mov[qhs]icc_internal): New.
        (*mov[qhs]icc_lbc, *mov[qhs]icc_lbs): New.

2000-05-25  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * vax.h (CPP_SPEC): Define __GFLOAT and GFLOAT when -mg is specified.

2000-05-25  Richard Henderson  <rth@cygnus.com>

        * bb-reorder.c (reorder_block_def): Reorder elements for size.
        Remove add_jump; add next; replace flags with visited.
        (rbd_init): Remove.
        (REORDER_BLOCK_HEAD, REORDER_BLOCK_VISITED): Remove.
        (REORDER_BLOCK_FLAGS, REORDER_BLOCK_INDEX): Remove.
        (REORDER_BLOCK_ADD_JUMP, REORDER_BLOCK_EFF_HEAD): Remove.
        (REORDER_BLOCK_EFF_END, REORDER_BLOCK_SCOPE): Remove.
        (RBI): New.
        (reorder_index, reorder_last_visited): Remove.
        (skip_insns_after_block): Rewrite to use a switch.
        (get_common_dest): Remove.
        (chain_reorder_blocks): Remove.
        (record_effective_endpoints): Split out from reorder_basic_blocks.
        (make_reorder_chain): Likewise.  Loop until all blocks are placed.
        (make_reorder_chain_1): Renamed from old make_reorder_chain.
        Only construct the reorder chain, do not move insns.  Try harder
        to tail recurse.
        (label_for_bb, emit_jump_to_block_after): New.
        (fixup_reorder_chain): Use them.  Do bulk block movement.  Examine
        and adjust the jump insns appropriately.  Fixup basic_block_info.
        (verify_insn_chain): Always define.
        (relate_bbs_with_scopes): Call xmalloc, not xcalloc.  Fix thinko
        in allocation size.
        (make_new_scope): Don't write zeros to calloc'd space.
        (build_scope_forest): Rely on xrealloc to DTRT.
        (reorder_basic_blocks): Don't build loop nest.  Don't fail if
        profile_arc_flag.  Streamline EH test.

        * flow.c (redirect_edge_succ, redirect_edge_pred): New.
        * basic-block.h: Declare them.

2000-05-25  Alexandre Oliva  <aoliva@cygnus.com>

        * emit-rtl.c (reset_used_decls): New function.
        (unshare_all_rtl_again): Call it.

2000-05-25  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (maybe_macroexpand): Warn about function-like
        macros used in non-function context, if -Wtraditional.

2000-05-25  Mark Mitchell  <mark@codesourcery.com>

        * recog.c (peephole2_optimize): Use INSN_P.

2000-05-25  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (seq_contains_jump): New.
        (noce_try_store_flag_constants): Use it to fail conversion.
        (noce_try_store_flag_inc, noce_try_store_flag_mask): Likewise.

2000-05-25  Mark Mitchell  <mark@codesourcery.com>

        * except.h (can_throw): Declare it.
        * except.c (can_throw): Give it external linkage.
        * resource.c (find_dead_or_set_registers): Use can_throw.
        
2000-05-25  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_set_1): Don't record conditionally dead memory.

2000-05-25  Jan Hubicka  <jh@suse.cz>

        * combine.c (try_combine): Use any_condjump_p, any_uncondjump_p
        and pc_set at the place of simplejump_p and condjump_p.
        * cse.c (record_jump_equiv): Likewise.
        * emit-rtl.c (emit): Likewise.
        * explow.c (find_next_ref): Likewise.
        * flow.c (tidy_fallthru_edge): Likewise.
        (init_propagate_block_info): Likewise.
        * gcse.c (delete_null_pointer_checks): Likewise.
        * ifcvt.c (cond_exec_get_condition, noce_get_condition,
        dead_or_predicable): Likewise.
        * integrate.c (copy_insn_list): Likewise.
        * loop.c (scan_loop, verify_dominator, find_and_verify_loops,
        for_each_insn_in_loop, check_dbra_loop, get_condition,
        insert_bct, load_mems): Likewise.
        * resource.c (find_dead_or_set_registers): Likewise.
        * sibcalls.c (simplejump_p): Likewise.
        * unroll.c (copy_loop_body, reg_dead_after_loop): Likewise.

2000-05-25  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (expand_block_move): Add 64-bit PowerPC doubleword move
        to STRING case.  Use doubleword STRING move for TARGET_POWERPC64
        when unaligned.
        * rs6000.h (CONST_OK_FOR_LETTER_P, 'J'): unsigned HOST_WIDE_INT.
        (RETURN_ADDR_RTX): Use COUNT and FRAME, not count and frame.
        (LEGITIMIZE_RELOAD_ADDRESS): unsigned HOST_WIDE_INT high.
        * rs6000.md: Name various internal patterns.

2000-05-25  Jan Hubicka  <jh@suse.cz>

        * jump.c (invert_exp_1): Remove first argument, use pc_set
        to get the expression.
        (redirect_exp): Make static; redirect only the pc_set expression,
        remove first argument.
        (invert_exp): Remove first argument, make static.
        (jump_optimize): Use any_condjump_p, any_uncondjump_p and
        any_onlyjump at most places where we originaly did condjump_p
        and simplejump_p.
        (jump_back_p, follow_jumps, thread_jumps): Likewise.
        (delete_barrier_succesors): Use pc_set.
        (invert_jump_1, invert_jump, redirect_jump_1, redirect_jump): Update
        calls of invert_exp and redirect_exp.
        * rtl.h (redirect_exp, invert_exp): Remove.
        * unroll.c (copy_loop_body): Use invert_jump and redirect_jump.

2000-05-25  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_end_bindings): Fix thinko last change.

2000-05-25  Andrew MacLeod  <amacleod@cygnus.com>
            Andrew Haley  <aph@cygnus.com>

        * except.c  (func_eh_entry): Add emitted field.
        (new_eh_region_entry): Set emitted field to 0;
        (output_exception_table_entry): Only emit previously un-emitted data,
        and send it to the eh_data section.
        (output_exception_table): Break out common parts. Output
        exception table for entire compilation unit to eh_data section.
        (output_exception_table_data): Common parts of output_exception_table.
        Send output to eh_data section.
        (output_function_exception_table): Output exception table data for
        a single function to eh_data section.
        (free_exception_table): New external to free the table.
        * except.h (free_exception_table): Add prototype.
        (output_function_exception_table): Add prototype.
        * final.c (final_end_function): Output function exception table
        for IA64_UNWIND_INFO.
        (final_scan_insn): Emit any unwind directives for an insn.

        * frame-dwarf2.c: New file containing all DWARF 2 specific code
        from frame.c.
        * frame.c: Remove all DWARF 2 specific code.
        * config/ia64/frame-ia64.c: New file.
        (gthread_stuff): Make all gthread available with 
        IA64_UNWIND_INFO.
        (dwarf_fde): Define an IA64 struct for dwarf_fde.
        (__register_frame_info, __register_frame): Move to common area of file.
        (__register_frame_info_table, __register_frame_table): Move to common i
        area.
        (__deregister_frame_info, __deregister_frame): Move to common area.
        (__frame_init, find_fde): New versions for IA64_UNWIND_INFO.
        (read_uleb128): New version for ia64.
        (get_unwind_record): Read the next IA-64 unwind record.
        (read_R_record): Read a region header record.
        (process_a_b_reg_code): X record helper.
        (read_X_record): Read an X format record.
        (read_B_record): Read a B format record.
        (P3_record_types): List of record types matching the P3 format.
        (P7_record_types): List of record types matching the P7 format.
        (P8_record_types): List of record types matching the P8 format.
        (read_P_record): Read a P format record.
        (init_ia64_reg_loc): Set default fields for a register.
        (init_ia64_unwind_frame): Set defaults for all register records.
        (execute_one_ia64_descriptor): Execute one descriptor record.
        (rse_address_add): Calculate the position of a local reg in memory.
        (normalize_reg_loc): Turn a location descriptor into a memory address.
        (maybe_normalize_reg_loc): Only normalize a descriptor if it falls 
        within a specified PC offset range.
        (get_real_reg_value): Given a register location, retrieve its value.
        (set_real_reg_value): Change the value of a register location.
        (copy_reg_value): Copy reg values, if needed.
        (copy_saved_reg_state): Copy all registers that need to be copied.
        (process_state_between): Normalize all frame register records that
        fall within the specified PC range.
        (frame_translate): Take a processed frame description, and turn 
        everything into addresses.
        (build_ia64_frame_state ): Find and create frame state record for a PC.
        (get_personality): Get the personality routine for a given frame.
        (get_except_table): Get the exception table for a given frame.
        (record_name): Unwind record names for debugging.
        (print_record): Print and unwind record.
        (print_all_records): Print an entire unwind image.
        (__ia64_backtrace): Print a backtrace.
        (ia64_backtrace_helper): New function.
        (__register_frame_info_aux): New function.
        * config/ia64/crtend.asm (__do_frame_setup_aux): New function.

        * frame.h (enum unw_record_type): New unwind record types.
        (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records.
        (struct unw_r_record, unwind_record): New unwind record structs.
        (struct unwind_info_ptr): Unwind information layout.
        (IA64_UNW_LOC_TYPE_*): Macros for different types for location 
        descriptors.
        (struct ia64_reg_loc): Register location description.
        (struct ia64_frame_state): Location of all registers in a frame.
        (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO.
        * libgcc2.c (__ia64_personality_v1): Personality routine.
        (__calc_caller_bsp): Calculate the bsp register for the caller's
        frame.
        (ia64_throw_helper): Figure out who to return to and set up the 
        registers.
        (__throw): Throw routine.

        * output.h (assemble_eh_align, assemble_eh_label): New functions
        to generate EH info where we want it.   
        (assemble_eh_integer): New function.
        * toplev.c (compile_file): Output module level exception table for
        non-ia64 targets.
        (main): Set exceptions_via_longjump and flag_new_exceptions based 
        on IA64_UNWIND_INFO too.

        * varasm.c (assemble_eh_label): Generate a label via
        ASM_OUTPUT_EH_LABEL if it has been specified.
        (assemble_eh_align): Generate an alignment directive via 
        ASM_OUTPUT_EH_ALIGN if it has been specified.
        (assemble_eh_label): Generate an integer value via
        ASM_OUTPUT_EH_type if they have been specified.
        * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs.
        (ia64_init_builtins): Add __builtin_ia64_bsp
        and __builtin_ia64_flushrs.     
        (ia64_expand_builtin): Add IA64_BUILTIN_BSP and
        IA64_BUILTIN_FLUSHRS.
        * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and
        IA64_BUILTIN_FLUSHRS.

        * config/ia64/ia64.md (flushrs): New insn to flush the register
        stack.  Add to unspec list.

        * config/ia64/crtbegin.asm (frame_object): Change size.
        (__do_frame_setup_aux): New function.
        * config/ia64/crtend.asm: call __do_frame_setup_aux.
        * config/ia64/t-ia64 (LIB2ADDEH): Add.
        * Makefile.in (LIB2ADDEH): Add.
        (LIB2ADD): Use LIB2ADDEH.
        
2000-05-24  Richard Henderson  <rth@cygnus.com>

        * recog.c (offsettable_address_p): If mode size is zero, assume
        BIGGEST_ALIGNMENT.

2000-05-24  J. David Anglin  <dave@hiauly.hia.nrc.ca>

        * configure.in: Check for -Wno-long-long option support and improve
        handling of warning CFLAGS for stages 1 and 2.
        * Makefile.in (WARN_CFLAGS): Move definition to configure.in.
        * configure: Regenerate.

Wed May 24 19:37:53 2000  Jeffrey A Law  (law@cygnus.com)

        * gcc.texi: Remove contributor list.  Instead include contrib.texi.
        * contrib.texi: New file.

Thu May 25 02:27:22 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (basic_induction_var): Avoid double recording of an increment.

Thu May 25 02:19:27 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * Back out this patch:
        Tue Dec  7 19:22:06 1999  Richard Henderson  <rth@cygnus.com>
          * loop.h (struct induction): Add multi_insn_incr.
          * loop.c (basic_induction_var): New multi_insn_incr argument.
          Set it if we search back through previous insns for the biv.
          (record_biv): New multi_insn_incr argument; fill in struct induction.
          (strength_reduce): Discard an iv with multiple bivs, any of
          which require multiple insns to increment.

        * loop.c (check_insn_for_bivs): Remove bits copied from above patch.

Thu May 25 02:09:10 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * rtl.h (loc_mentioned_in_p): Declare.
        * reload.c (loc_mentioned_in_p): Moved from here...
        * rtlanal.c (loc_mentioned_in_p): to here.  No longer static.
        Fix loop increment for 'E' handling.
        * loop.c (strength_reduce): When doing biv->giv conversion,
        take multi-insn biv increments into account.

2000-05-24  Jason Merrill  <jason@casey.soma.redhat.com>

        * stmt.c (expand_end_bindings): Look through NOTEs to find a
        BARRIER.

2000-05-24  Mark Mitchell  <mark@codesourcery.com>

        * calls.c (expand_call): Handle cleanups in tail-recursion
        arguments analagously to cleanups in sibling calls.

2000-05-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND.
        All callers changed.

2000-05-24  Alexandre Oliva  <aoliva@cygnus.com>

        * expr.c (expand_assignment, store_expr, expand_expr,
        expand_expr_unaligned): Set in_check_memory_usage while emitting
        chkr_check_addr libcall.

2000-05-24  Nick Clifton  <nickc@cygnus.com>

        * fold-const.c (extract_muldiv): When constructing a
        multiplier/divisor, do not expect const_binop to correctly
        determine if overflow has occured, so check explicitly.

2000-05-24  Alexandre Oliva  <aoliva@cygnus.com>

        * c-decl.c (build_enumerator): Don't modify the value's type,
        convert it.

2000-05-24  Andreas Jaeger  <aj@suse.de>

        * mips.h (LINKER_ENDIAN_SPEC): Pass -EL to linker by default.

2000-05-24  Eric Christopher <echristo@cygnus.com>

        * configure.in: Redefine inhibit_libc conditions.
        * libgcc2.c: Remove inhibit_libc conditional define.
        * configure: Regenerate.

2000-05-24  Phil Edwards  <pme@sourceware.cygnus.com>

        * configure.in:  For --enable-languages=LIST, check for empty LIST.
        * configure:  Regenerate.

2000-05-24  Lars Brinkhoff  <lars@nocrew.org>

        * pdp11.h (STACK_BOUNDARY): Define.

2000-05-24  Jakub Jelinek  <jakub@redhat.com>

        * ifcvt.c (if_convert): Update life info globally.

2000-05-24  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * emit-rtl.c (unshare_all_decls): New function.
        (unshare_all_rtl): Call it.

2000-05-23  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Treat 'strongarm' as if it were 'arm' when
        determining cpu type.

        * configure: Regenerate.

        * config/arm/arm.c: Change 'char *' to 'const char *' for cases
        where constant strings are involved.

        * config/arm/arm.h (arm_condition_codes): Change type to 'const
        char *'.

        * config/arm/arm-protos.h: Change 'char *' to 'const char *' for
        cases where constant strings are involved.

Tue May 23 15:08:31 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * config/sh/sh.c (gen_far_branch, split_branches): Update
        to reflect new prototypes for redirect_jump and invert_jump.
        (sh_insn_length_adjustment): Get rid of const warnings.

2000-05-23  Kazu Hirata  <kazu@hxi.com>

        * invoke.texi (Options for Debugging Your Program or GCC): Update
        the names of dump files.

Tue May 23 13:58:52 2000  Philippe De Muyter  <phdm@macqel.be>

        * configure.in (NO_MINUS_C_MINUS_O): Fix thinko in previous fix.
        * configure: Regenerated.

2000-05-23  Zack Weinberg  <zack@wolery.cumb.org>

        * simplify-rtx.c (SIGN_EXTEND): New macro.
        (simplify_unary_operation, simplify_binary_operation, 
        simplify_relational_operation): Use SIGN_EXTEND.  Make low
        halves of (low, high) pairs unsigned if they weren't already.       
        (simplify_ternary_operation): Cast INTVAL to unsigned before
        comparing to a MODE_BITSIZE.

2000-05-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (gcc_AC_CHECK_DECL, gcc_AC_CHECK_DECLS): New macros
        rewritten from the internals of gcc_AC_NEED_DECLARATION{S}.
        
        * configure.in (gcc_AC_CHECK_DECLS): Call this instead of
        gcc_AC_NEED_DECLARATIONS.

        * dwarfout.c: Don't prototype time().

        * gcc.c: Check HAVE_DECL_* instead of NEED_DECLARATION_*.

        * system.h: Likewise.

        * toplev.c: Likewise.

2000-05-23  Zack Weinberg  <zack@wolery.cumb.org>

        * c-decl.c (pushdecl): Invert sense of test for non-global types.

Tue May 23 18:11:42 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_cse_move2add): Honor TRULY_NOOP_TRUNCATION.

2000-05-23  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * config/mips/elf64.h (CTOR_LISTS_DEFINED_EXTERNALLY): Define

Tue May 23 06:50:29 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/alpha/alpha.c: Remove #ifdef HAIFA since now only scheduler.
        (alpha_start_function): Never write ..ng label if VMS or NT.
        (alpha_align_insns): Remove GP_IN_USE arg.
        Alignment now unsigned.
        (alpha_reorg): Don't pass GP_IN_USE arg to alpha_align_insns.
        * config/alpha/alpha.md (prologue_ldgp): Split into one define_expand
        and two define_insn's.

2000-05-22  Richard Henderson  <rth@cygnus.com>

        * combine.c (simplify_comparison): Use trunc_int_for_mode.

2000-05-22  Richard Henderson  <rth@cygnus.com>

        * stor-layout.c (place_field): Change rli->size to rli->offset.

2000-05-22  Richard Henderson  <rth@cygnus.com>

        * function.c (thread_prologue_and_epilogue_insns): Make sure 
        existing line number notes appear after the prologue.

Mon May 22 21:49:00 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/alpha/alpha.c (alpha_fnname): New static variable.
        (print_operand, case '~'): New case.
        (alpha_expand_prologue): Emit prologue_ldgp insn if needed.
        (alpha_start_function): Set alpha_fnname.
        Write "ng" label if no ldgp; don't write ldgp insn.
        * config/alpha/alpha.h (PRINT_OPERAND_PUNCT_VALID_P): New case '~'.
        * config/alpha/alpha.md (prologue_ldgp): New define_insn.

Mon May 22 11:30:48 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * jump.c (jump_optimize_1): Don't increment LABEL_NUSES
        on deleted labels.

2000-05-22  Zack Weinberg  <zack@wolery.cumb.org>

        * varasm.c (eh_frame_section): Revert change to argument list.

Mon May 22 13:14:03 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * optabs.c (can_extend_p): Allow unsignedp to have any nonzero value.
        (gen_extend_insn, can_fix_p, can_float_p): Likewise.
        
        * final.c (final_scan_insn, case NOTE_INSN_FUNCTION_BEG): Remove
        dangling "else" that causes "break" to be conditional.
        Also remove unneeded code at start.

Mon May 22 17:31:35 2000  Philippe De Muyter  <phdm@macqel.be>

        * m68k/m68k.h (STORE_FLAG_VALUE): Macro set to (-1), not -1.
        * fx80/fx80.h, i370/i370.h, m88k/m88k.h (STORE_FLAG_VALUE): Ditto.
        * gmicro/gmicro.h, we32k/we32k.h (STORE_FLAG_VALUE): Ditto.

2000-05-22  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (movdf_insn_v9only_vis): fzero has
        just one argument.

Mon May 22 06:57:49 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (record_component_aliases): New function.
        * tree.h: Clean up some declarations and comments.
        (record_component_aliases): New declaration.
        * tree.c (get_alias_set): If type and has alias set, use it.

2000-05-22  Richard Henderson  <rth@cygnus.com>

        * simplify-rtx.c (simplify_ternary_operation): Try to simplify
        IF_THEN_ELSE to a setcc form.
        * jump.c (can_reverse_comparison_p): Be prepared for insn null.

2000-05-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/inclhack.def (sun_malloc): Handle `calloc'.
        (sun_malloc, sysz_stdtypes_for_sun): Add test_text.

Sun May 21 16:42:31 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (try_combine): Handle i3_subst_into_i2 case when I2 is
        not a PARALLEL.

2000-05-20  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.md (movdi, movdf): 64-bit clean-up.
        * config/mn10300/mn10300.c (print_operand): Likewise.

        * final.c (split_double): Right shift of negative values is not
        portable.

        * ifcvt.c (if_convert): Scan and kill dead code.

        * emit-rtl.c (unshare_all_rtl): Store the copied rtx.

2000-05-20  Zack Weinberg  <zack@wolery.cumb.org>

        * diagnostic.c: Eliminate implicit int.
        * except.c, gcc.c: Add static prototypes.
        * final.c (final_end_function): Mark file arg ATTRIBUTE_UNUSED.
        * gensupport.c (process_rtx): Use XVEC to initialize vector
        slot of 'split'.

        * print-rtl.c: If DEBUG_REGISTER_NAMES, define static 
        debug_reg_names instead of static reg_names.  If not, define
        global reg_names.
        * regclass.c: Don't define global reg_names unless
        DEBUG_REGISTER_NAMES is defined.

        * reload1.c (order_regs_for_reload): Remove unused variable.
        * varasm.c: Include output.h after defaults.h.  Define
        eh_frame_section as function of no args, not of unspecified args.

        * gcc.c: Constify argbuf; arguments to store_arg,
        process_command, main; elements of struct command and struct
        switchstr; local variables in execute, process_command, main.

2000-05-20  Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def:  many applications of c_fix=format + tests
        * fixinc/check.diff:  regenerated
        * fixinc/fixincl.x:  regenerated

Sat May 20 09:30:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c: Clarify some comments.
        (record_base_value): REGNO is unsigned.
        * rtl.h (record_base_value): Likewise.

        * alias.c (aliases_everything_p): Don't special-case QImode here.
        * c-common.c (c_get_alias_set): Do it here.
        Handle BIT_FIELD_REF by getting alias info for arg.
        Use POINTER_TYPE_P.

2000-05-20  Alexandre Oliva  <aoliva@cygnus.com>

        * mklibgcc.in: Restore rule to create ${dir}.

Sat May 20 08:45:41 2000  H.J. Lu  <hjl@gnu.org>

        * Makefile.in (libgcc.mk): Depend on xgcc$(exeext) for
        GCC_FOR_TARGET used by MULTILIBS.
        * mklibgcc.in: Make sure each .o file depends on the
        directory it will be in.
        Make the multilib directory depends libgcc.

Sat May 20 08:29:28 2000  H.J. Lu  <hjl@gnu.org>

        * Makefile.in (bootstrap): Unset LANG_LIB2FUNCS for stage 1.

Sat May 20 07:27:35 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * fold-const.c (make_range): Handle degenerated intervals.
        Fixes c-torture/execute/991221-1.c

Fri May 19 18:16:31 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * cse.c (cse_basic_block): Only call find_reg_note if REG_NOTES not 0.
        * reload.c (find_equiv_reg): Likewise.
        * alias.c (init_alias_analysis): Likewise.
        Only call prologue_epilogue_contains on insns.
        * basic-block.h (REG_SET_TO_HARD_REG_SET): Call new function.
        * bb-reorder.c (hard-reg-set.h): Include earlier.
        * haifa-sched.c (hard-reg-set.h): Likewise.
        * ifcvt.c (hard-reg-set.h): Likewise.
        * local-alloc.c (hard-reg-set.h): Likewise.
        * loop.c (hard-reg-set.h): Likewise.
        * predict.c (hard-reg-set.h): Likewise.
        * regrename.c (hard-reg-set.h): Likewise.
        * flow.c (hard-reg-set.h): Likewise.
        (reg_set_to_hard_reg_set): New function.
        * bitmap.c (regs.h, basic-block.h): No longer include.
        (bitmap.h): Now include.
        * conflict.c (hard-reg-set.h): Include.
        * profile.c (hard-reg-set.h): Likewise.
        * print-rtl.c (hard-reg-set.h): Likewise.
        * sbitmap.c (hard-reg-set.h): Likewise.
        * toplev.c (hard-reg-set.h): Likewise.
        * unroll.c (hard-reg-set.h, basic-block.h): Likewise.
        * hard-reg-set.h (reg_names): Now constant.
        * regs.h (reg_names): Likewise.
        * regclass.c (reg_names): Likewise.
        * loop.h (basic-block.h): No longer include.
        (bitmap.h): Now include.
        * reload1.c (order_regs_for_reload): Avoid loop over reg sets.
        * Makefile.in (LOOP_H, sbitmap.o, profile.o): Reflect above changes.
        (toplev.o, print-rtl.o, conflict.o, unroll.o, bitmap.o): Likewise.

2000-05-19  Jan Hubicka  <jh@suse.cz>
            Richard Henderson  <rth@cygnus.com>

        * basic-block.h (struct edge_def): New field "count".
        (struct basic_block_def): Likewise.
        * flow.c (entry_exit_blocks): Add count fileds.
        (split_edge): Keep count information up-to-date.
        (dump_edge_info, dump_flow_info): Dump count fields.

        * final.c (count_instrumented_edges): Rename to edge from arc.
        (end_final): Update users.
        * profile.c: Include expr.h, basic-block.h.
        (struct adj_list, ARC_TARGET, ARC_SOURCE, ARC_COUNT): Kill.
        (struct bb_info, label_to_bb, label_to_bb_size, bb_graph): Kill.
        (ignore_next_note, return_label_execution_count): Kill.
        (bbg_file_name, da_file_name): Kill.
        (edge_info, bb_info): New structures.
        (EDGE_INFO, BB_INFO, GCOV_INDEX_TO_BB, BB_TO_GCOV_INDEX): New macros.
        (count_instrumented_edges, total_num_edges): Rename to edge from arc.
        (total_num_edges_instrumented): Likewise.
        (init_arc, expand_spanning_tree): Kill.
        (fill_spanning_tree, tablejump_entry_p): Kill.
        (instrument_edges):  Rewrite from instrument_arcs to use
        commit_edge_insertions infrastructure.
        (compute_branch_probabilities): Remove arguments; rewrite for
        CFG infrastructure; use rtl_dump_file directly.
        (branch_prob, find_spanning_tree): Likewise.
        (union_groups, find_group): New.
        (init_branch_prob): Make bbg_file_name and da_file_name local.
        (end_branch_prob): Use rtl_dump_file directly.
        (init_edge_profiler): Rename to edge from arc.
        (output_arc_profiler): Kill.
        (gen_edge_profiler): New.
        (output_func_start_profiler): Turn off profiling.  Make the
        constructor static when we can.
        * rtl.h (branch_prob, end_branch_prob): Update prototypes.

        * toplev.c (DFI_flow): Remove.
        (DFI_cfg, DFI_life): New.
        (dump_file): Update accordingly.
        (compile_file): Call end_branch_prob if profile_arc_flag too.
        (rest_of_compilation): Move flow1 cfg creation to DFI_cfg.  Do edge
        profiling after the CFG is built.  Move flow1 life analysis to
        DFI_life.  Always estimate remaining probabilities.

2000-05-19  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (find_if_case_2): Don't allow THEN to be EXIT.

        * flow.c (make_edges): The sibling call edge to exit is abnormal.

2000-05-19  Richard Henderson  <rth@cygnus.com>

        * jump.c (redirect_jump): Add delete_unused argument.  Don't
        remove labels and code following when LABEL_NUSES goes to zero.
        (invert_jump): Likewise.
        (jump_optimize_1): Fix redirect/invert arguments.
        (do_cross_jump, thread_jumps): Likewise.
        * flow.c (split_edge): Likewise.
        * reorg.c (optimize_skip): Likewise.
        (reorg_redirect_jump, relax_delay_slots, dbr_schedule): Likewise.
        * profile.c (instrument_arcs): Likewise.
        * loop.c (find_and_verify_loops): Likewise.  Fix indentation.
        * rtl.h: Update prototypes.

Fri May 19 12:05:13 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * ssa.c (convert_from_ssa): Tell life_analysis we need death 
        notes.
        (make_regs_equivalent_over_bad_edges): Only look at abnormal
        critical edges.

2000-05-19  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (funlike_macroexpand): Make sure not to walk p1
        past l1 when deleting whitespace and markers.              

        * cpplex.c (_cpp_scan_until): Clear AUX field of tokens.
        * cpplib.c (do_unassert): Put the list to compare against on
        the stack.

2000-05-19  Bruce Korb  <bkorb@gnu.org>

        * fixinc/README:  cleaned up old documentation
        * fixinc/check.diff: regenerated & verified on OSR5 on ix86
        * fixinc/check.tpl: compute the list of needed directories
        emit "#if defined(name)" because of conflict
        omit machine name differences from output differences
        * fixinc/inclhack.def( m88k_multi_incl ):  Use `wrap' function
        (machine_name): change test text to use `sed' markers
        * fixinc/fixincl.x: regen

Fri May 19 06:49:35 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * config/elfos.h (SELECT_SECTION): Don't access DECL_INITIAL of
        a CONSTRUCTOR.

2000-05-18  Chris Demetriou  <cgd@sibyte.com>

        * gcc.texi (MULTILIB_EXCEPTIONS): Correct example and update
        it to match the current practice.

2000-05-18  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (STAGESTUFF): Fix typo in spelling of s-under.

2000-05-18  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (insn_dependant_p, insn_dependant_p_1): New.
        * rtl.h (insn_dependant_p): Declare it.
        * loop.c (strength_reduce): Use it.

2000-05-18  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.c (expand_prologue, expand_epilogue):
        16-bit and 64-bit clean-up.

2000-05-18 Mark Elbrecht <snowball3@bigfoot.com>

        * configure.in (*-pc-msdosdjgpp): Set float_format to none.
        * configure: Rebuilt.

2000-05-18  Zack Weinberg  <zack@wolery.cumb.org>

        * genopinit.c: Use $ for escape sequences in optab patterns.
        Remove backslashes from optab patterns.  Change $A, $B, $C to
        expand to (int) whatever instead of just whatever; remove
        explicit (int) from all optab patterns.

        * gensupport.c (xmalloc, xrealloc, xstrdup): Provide.
        * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c,
        genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c,
        genrecog.c: Remove private copies of xmalloc, xrealloc, and
        xstrdup.

2000-05-18  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Base minimum insn count during
        find_cross_jump on BRANCH_COST.

2000-05-18  Jakub Jelinek  <jakub@redhat.com>

        * print-rtl.c (print_rtx): Only print note line number as string
        if between NOTE_INSN_BIAS and NOTE_INSN_MAX.
        * final.c (final_scan_insn): Do nothing for note line number 0.

2000-05-18  Jakub Jelinek  <jakub@redhat.com>

        * gcc-common.c (ggc_mark_rtx_children): Mark NOTE_EXPECTED_VALUE
        from NOTE_INSN_EXPECTED_VALUE notes and NOTE_SOURCE_FILE from
        NOTE_INSN_DELETED_LABEL.

2000-05-18  Nick Clifton  <nickc@cygnus.com>

        * config/arm/unknown-elf.h (UNIQUE_SECTION): Place constant,
        uninitialised data in .rodata not .bss, and do not interpret an
        error in the initialisation value as meaning that the variable
        should be placed in the .bss section.

Thu May 18 12:10:18 2000  Philippe De Muyter  <phdm@macqel.be>

        * configure.in (NO_MINUS_C_MINUS_O): Test `$ac_cv_prog_cc_${ac_cc}_c_o',
        not `$ac_cv_prog_cc_cc_c_o'.
        * configure: Regenerated.

2000-05-18  Chris Demetriou  <cgd@sibyte.com>
            Richard Henderson  <rth@cygnus.com>

        * c-common.h (enum c_tree_index): Add g77 type entries.
        (g77_integer_type_node, g77_uinteger_type_node): New.
        (g77_longint_type_node, g77_ulongint_type_node): New.
        * c-decl.c (init_decl_processing): Initialize them.

2000-05-18  Richard Henderson  <rth@cygnus.com>

        * config/h8300/h8300.md (subs patterns): Use %G to negate.

        * config/h8300/h8300.c (ok_for_bclr): Take a HOST_WIDE_INT.
        (small_power_of_two): Likewise; use exact_log2.
        (adds_subs_operand, one_insn_adds_subs_operand): Remove.
        (output_adds_subs): Remove.
        (two_insn_adds_subs_operand): New.
        (split_adds_subs): New.
        * config/h8300/h8300-protos.h: Update.
        * config/h8300/h8300.h (CONST_OK_FOR_J): Cast to uns HOST_WIDE_INT.
        (CONST_OK_FOR_L): Match strict adds operands.
        (CONST_OK_FOR_N): Match struct subs operands.
        * config/h8300/h8300.md (adds_subs insns): Remove.
        (addhi patterns): Output adds/subs directly.
        (addsi_h8300h): Likewise.
        (addhi/addsi splitters): New.  Decompose two_insn_adds_subs_operand.

2000-05-18  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c (parse_assertion): New.
        (lex): Call it for CPP_HASH.  Remove CPP_ASSERTION case.
        (_cpp_parse_expr): Remove case '#'.  Don't set
        parsing_if_directive.
        * cpphash.c (collect_objlike_expansion,
        collect_funlike_expansion, collect_params,
        _cpp_create_definition): The list no longer has a trailing
        VSPACE token.
        * cpphash.h (enum node_type): Add T_ASSERTION.
        (struct hashnode): Remove aschain, add pred.
        (struct predicate): New.
        Update prototypes.

        * cpplex.c (expand_token_space): Handle both offset and
        nonoffset lists.
        (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete.
        (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist,
        _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens,
        _cpp_equiv_toklists): New.
        (_cpp_scan_line): Rename to _cpp_scan_until; add ability to
        stop at any single-character token, not just newline.
        (_cpp_lex_token): Remove special cases for #define and #if.
        (cpp_get_token): Expect # as a separate token type.  Remove
        DIRECTIVE case.
        (_cpp_get_directive_token): Remove DIRECTIVE case.
        (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update.

        * cpplib.c (_cpp_check_directive): Set dirno and
        SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags.
        (_cpp_handle_directive): Run # <number> through the same logic
        as normal directives.
        (do_define): Don't set parsing_define_directive.  Use
        _cpp_scan_until.  The list does not have a VSPACE at the end.
        (do_if): Save, clear, and restore only_seen_white around 
        _cpp_parse_expr.
        (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/
        (do_assert, do_unassert): Rewrite.

        * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION.
        (LIST_OFFSET): New flag.
        (struct cpp_toklist): Replace dir_handler and dir_flags with
        dirno and flags.
        (struct cpp_reader): Remove parsing_if_directive and
        parsing_define_directive.

2000-05-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/inclhack.def (broken_cabs): Update fix to handle comments
        following the cabs decl which terminate on the following line.
        Add the corresponding test_text case.

2000-05-18  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (cpp_reader_init): Initialise col_adjust and
        default tab stop size.
        (no_num, OPT_ftabstop): New.
        (handle_option): Handle "ftabstop=" command-line option.
        (print_help): Document it.
        * cpplex.c (COLUMN): Remove.
        (handle_newline): Reset col_adjust.
        (skip_whitespace): Update col_adjust as tabs encountered.
        (_cpp_lex_line): Update to use col_adjust.  Call
        skip_whitespace for all whitespace.
        * cpplib.h (struct cpp_options): New member tabstop.
        (struct cpp_reader): New member col_adjust.
        (CPP_BUF_COL): Update.
        (CPP_BUF_COLUMN): New.
        * cpp.texi: Document "-ftabstop=" command line option.

Wed May 17 18:19:41 2000  Philippe De Muyter  <phdm@macqel.be>

        * configure.in (NO_MINUS_C_MINUS_O): Macro made availabe for AC_OUTPUT
        files.
        * configure: Rebuilt.

Wed May 17 18:06:12 2000  John David Anglin <dave@hiauly1.hia.nrc.ca>

        * mklibgcc.in Add missing -DL$name when compiling modules in libgcc1.c.

        * tree.c (build_common_tree_nodes): Do not build TI nodes unless
        HOST_BITS_PER_WIDE_INT is >= 64.

2000-05-17  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Remove inactive but real insns
        in jump-to-next-insn optimization.

2000-05-17  Richard Henderson  <rth@cygnus.com>

        * toplev.c (rest_of_compilation): Don't call optimize_mode_switching
        unless OPTIMIZE_MODE_SWITCHING.  Conditionally set no_new_pseudos.
        Don't call recompute_reg_usage if no_new_pseudos is true.
        * lcm.c (optimize_mode_switching): Move ifdefs outside function.
        Return true if we did work; update global life information.
        * basic-block.h (optimize_mode_switching): Update decl.

2000-05-17  Neil Booth  <neilb@earthling.net>

        * cpplex.c (expand_name_space): Don't use ptrdiff_t.

2000-05-17  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c: New feature, #pragma system_header.
        * cpp.texi: Document special treatment of system headers, and
        the various mechanisms to get a header that special treatment.

2000-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (offsetof): Define at the very end, to ensure we prefer
        the platform's definition if available.

2000-05-16  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixincl.c: improve the debug displays, ignore SIGPIPE
        * fixinc/server.c: likewise
        * fixinc/fixfixes.c( char_macro_def_fix ): fix regex
        + #ifdef debugging code + use #def constant for
        sub-pattern count
        * fixinc/inclhack.def( hpux11_fabsf ): Keep HP-UX 11 from stomping
        on C++ math namespace

2000-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/fixfixes.c (char_macro_use_fix, char_macro_def_fix):
        Don't check the return value of sprintf.  Use asprintf to avoid
        buffer overflows.

Wed May 17 17:27:44 2000  Andrew Cagney  <cagney@b1.cygnus.com>

        * flags.h (warn_unused_function, warn_unused_label,
        warn_unused_parameter, warn_unused_variable, warn_unused_value):
        Replace ``warn_unused''.
        (set_Wunused): Add declaration.
        * toplev.c (set_Wunused): New function.
        (warn_unused_function, warn_unused_label, warn_unused_parameter,
        warn_unused_variable, warn_unused_value): New variables.
        (W_options): Add -Wunused-function, -Wunused-function,
        -Wunused-label, -Wunused-parameter, -Wunused-variable and
        -Wunused-value.  Delete -Wunused.  Handled in decode_W_option.

        * toplev.c (decode_W_option): Update -Wunused flags by calling
        set_Wunused.
        * c-decl.c (c_decode_option): Ditto for -Wall.

        * stmt.c (expand_expr_stmt, expand_expr_stmt,
        warn_about_unused_variables): Replace warn_unused with more
        explicit warn_unused_value et.al.
        * function.c (expand_function_end): Ditto.
        * c-typeck.c (internal_build_compound_expr,
        internal_build_compound_expr): Ditto.
        * c-decl.c (poplevel, pop_label_level): Ditto.
        * toplev.c (check_global_declarations): Replace warn_unused with
        check for either warn_unused_function or warn_unused_variable.

        * gcc.1, invoke.texi (Warning Options): Document
        -Wunused-function, -Wunused-function, -Wunused-label,
        -Wunused-parameter, -Wunused-variable and -Wunused-value options.

Wed May 17 10:28:12 2000  Philippe De Muyter  <phdm@macqel.be>

        * mklibgcc.in (building libgcc1) [Xlibgcc1.a]: Find libgcc1.c in
        $(srcdir), not in the current directory.

2000-05-16  Richard Henderson  <rth@cygnus.com>

        * config/ia64/crtbegin.asm (__dso_handle): Mark hidden if the
        assembler supports it.
        (.fini, .init): Use a gp-relative indirect call.
        (__do_global_dtors_aux): Preserve the gp; rebundle.
        (__do_frame_setup): Likewise.
        * config/ia64/crtend.asm (.IA_64.unwind): Don't terminate with -1.
        (.init): Use a gp-relative indirect call.
        (__do_global_ctors_aux): Preserve the gp.

2000-05-16  Richard Henderson  <rth@cygnus.com>

        * flow.c (commit_one_edge_insertion): Be prepared for a return
        insn to be inserted on the edge with a normal jump.
        * jump.c (jump_optimize_1): Don't look to create return isns.

        * flow.c (flow_delete_insn): Don't adjust reference count of notes.
        * jump.c (jump_optimize_1): Likewise.
        (returnjump_p): Verify the argument is a JUMP_INSN.
        * rtl.def (NOTE): Add 5th element for NOTE_INSN_DELETED_LABEL.

2000-05-16  Nick Clifton  <nickc@cygnus.com>

        * config/m32r/m32r.c (small_insn_p): Use INSN_P() to replace
        GET_RTX_CLASS (GET_CODE ()) == 'i'.
        (large_insn_p): Ditto.
        (m32r_is_insn): New function: Return true if the insn contains
        an executable instruction.
        (m32r_adjust_insn): Use m32r_is_insn.
        (m32r_sched_reorder): Use m32r_is_insn.
        (m32r_sched_variable_issue): Use m32r_is_insn.

2000-05-16  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000/rs6000.c (rs6000_select_section): Treat CONSTRUCTOR like
        VAR_DECL.

        * rs6000/sysv4.h (ASM_OUTPUT_DWARF_ADDR): Delete unused variable.

        * rs6000/sysv4.h (CPP_OS_LINUX_SPEC): Define __unix and __linux
        according to given options.

Tue May 16 12:17:31 2000  Jeffrey A Law  (law@cygnus.com)

        * mn10200.h (PREFERRED_RELOAD_CLASS): Do not prefer DATA_REGS
        if X has VOIDmode either.
        (LIMIT_RELOAD_CLASS): Similarly.

        * mn10200.md (indirect_jump, tablejump): Use "register_operand",
        not "general_operand" to match the processor's capabilities.

2000-05-16  Bruce Korb  <bkorb@gnu.org>

        * fixinc/README:  corrected return address
        * fixinc/check.diff:  regenerate, now that test works
        * fixinc/fixfixes.c(format_fix,format_write): reformatted
        (char_macro_def_fix,char_macro_use_fix): corrected and
        rewrote to use regex to parse the text
        * fixinc/inclhack.def: more testing
        * fixinc/fixincl.x:  regenerated

        * fixinc/inclhack.def: added several "test_text" attributes
        changed several fixes to use `c_fix = format'
        re-alphabetized the fixes

        * fixinc/check.diff: regenerate
        * fixinc/fixincl.x: regenerate
        * fixinc/check.tpl: added `sparc' and `netinet' to the list
        of created dirs


2000-05-16  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove.

2000-05-15  Richard Henderson  <rth@cygnus.com>

        * toplev.c (rest_of_compilation): Run full jump pass before
        find_basic_blocks of flow2.

2000-05-15  Richard Henderson  <rth@cygnus.com>

        * jump.c: Fix typos and clarify commentary from last change.
        (any_condjump_p): Verify SET_SRC is an IF_THEN_ELSE.
        (safe_to_remove_jump_p): Remove.
        (condjump_label): Use pc_set.

2000-05-15  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (cond_exec_process_insns): Drop USE and CLOBBER insns
        that get in the way after reload.
        (cond_exec_process_if_block): Skip a label heading THEN block.

2000-05-15  Richard Henderson  <rth@cygnus.com>

        * varasm.c (output_constant_pool): Abort instead of converting
        (improperly) deleted labels to zero.

2000-05-16  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (parse_string2): Update comment.
        (cpp_lex_line): No special assertion treatment for '('.
        * cpplib.c (DIRECTIVE_TABLE): Remove SYNTAX_ASSERT.
        * cpplib.h (SYNTAX_ASSERT): Remove.

Mon May 15 21:45:36 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * jump.c (condjump_p):  Mark as depreached.
        (any_condump_p): New.
        (any_uncondump_p): New.
        (pc_set): New.
        (safe_to_remove_jump_p): New.
        * rtl.h (any_condump_p, any_uncondjump_p, pc_set
        safe_to_remove_jump_p): Declare.

Mon May 15 21:07:20 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c: Re-install both patches reverted by last patch.
        (struct arg_data): New field tail_call_reg.
        (initialize_argument_information): Initialize tail_call_reg
        (load_register_parameters): New argument flags, use
        tail_call_reg when emiting tail call sequence.
        (expand_call): Update call of load_register_parameters;
        copy unadjusted_args_size to adjusted_args_size.

Mon May 15 19:01:42 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (scan_loop, strength_reduce, loop_optimize): Change unroll_p
        and bct_p parameters to flags.
        * loop.h (LOOP_UNROLL, LOOP_BCT): New constants.
        * rtl.h (loop_optimize): Update prototype.
        * toplev.c (rest_of_compilation): Update call of loop_optimize.

2000-05-15  Jakub Jelinek  <jakub@redhat.com>

        * calls.c (expand_call): Move expand_start_target_temps call after
        start_sequence().

2000-05-15  Neil Booth  <NeilB@earthling.net>

        * cpphash.c (trad_stringify, warn_trad_stringify,
        collect_params): Make some pointers pointers to const.
        * cpplex.c (auto_expand_name_space) Guaranteed to always
        expand by at least one character.
        (SPELL_CHAR, SPELL_NONE): Temporarily reverse order.
        (struct token_spelling): Use const U_CHAR * rather than PTR.
        (expand_name_space): Fix up token pointers if name space
        is moved when expanding.
        (INIT_NAME, cpp_scan_line, parse_name, parse_number,
        parse_string2, save_comment, spell_token, cpp_output_list):
        Update so the routines handle tokens with a direct pointer to
        their text, rather than an offset into the token's list's namebuf.
        (_cpp_lex_line): Rearrange for clarity.

        * cpplib.c (_cpp_check_directive): Similarly.
        (do_define): Make SYM a pointer to const.
        * cpplib.h (struct cpp_name): Replace offset with direct pointer.
        (CPP_INT, CPP_FLOAT): Spelling type should be SPELL_IDENT.
        (TOK_OFFSET): Delete.
        (TOK_NAME): Update.

2000-05-14  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.h (RETURN_ADDRESS_OFFSET): Correct for
        64-bit ABI.

        * config/rs6000/rs6000.c (logical_operand): Rewrite to take MODE 
        into account.
        (logical_u_operand): Delete.
        (non_logical_cint_operand): Rewrite to take MODE into account.
        (non_logical_u_cint_operand): Delete.
        (boolean_operator): New function.
        (print_operand): Add new %q operand.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Add boolean_operator,
        remove logical_u_operand and non_logical_u_cint_operand,
        update logical_operand and non_logical_cint_operand.
        * config/rs6000/rs6000.md: Rewrite the patterns for performing
        logical operations to use %q.

        * config/rs6000/rs6000.md (movsi): Don't modify RTL in-place.
        (movdi): Make similar to movsi.
        * config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): There
        is no such thing as a DImode CONST_DOUBLE.
        * config/rs6000/rs6000.c (output_toc): Likewise.
        
        * config/rs6000/rs6000.c (output_cbranch): Don't output prediction
        codes when old mnemonics are in use.  Print register names
        for cc registers when requested.

        * optabs.c (expand_float): Don't allow mode widening that causes
        double rounding.

        * invoke.texi (RS/6000 and PowerPC Options): Update -m64/-m32
        flags to their current names -maix64 and -maix32.

2000-05-14  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c(wrap_fix): new fix - inserts text before
        and/or after current text of file
        * fixinc/fixlib.c(must_malloc):
        * fixinc/fixlib.h(must_malloc): + reformatting
        * fixinc/inclhack.def: replace the "1i" and "$a" sed commands
        with usages of ``c_fix = wrap;''
        Add several tests and use the ``c_fix = format'' fixer more.
        * fixinc/fixincl.x: regen
        * fixinc/check.diff: regen
        * fixinc/check.tpl: emit the associated header with the missing
        test message

Sun May 14 17:58:59 2000  Hans-Peter Nilsson  <hp@axis.com>

        * mklibgcc.in (building libgcc1) [Xlibgcc1.a]: Do not use unset
        variables $src and $dst.
        
2000-05-13  Gabriel Dos Reis <gdr@codesourcery.com>

        * diagnostic.h (DIAGNOSTICS_SHOW_PREFIX_ONCE): New macro.
        (DIAGNOSTICS_SHOW_PREFIX_NEVER): Likewise.
        (DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE): Likewise.
        (struct output_buffer: emitted_prefix_p, prefixing_rule): New
        fields. 
        (set_message_prefixing_rule): Declare.

        * diagnostic.c: (current_prefixing_rule): New variable.
        (set_message_prefixing_rule): Define.
        (output_set_prefix): Adjust buffer->emitted_prefix_p.
        (init_output_buffer): Adjust Initialization.
        (output_emit_prefix): Rewrite.  Take prefixing rules into account.
        
Sat May 13 11:05:47 2000  Philippe De Muyter  <phdm@macqel.be>

        * ifcvt.c (if_convert): Do not free NULL.

2000-05-12  Nick Clifton  <nickc@cygnus.com>

        * config/fr30/fr30.c (fr30_move_double): New function:  Emit code
        to move a double word value.
        (di_operand): New function: Return true if the operand is suitbale
        for a double word move operation.
        (nonimmediate_di_operand): New function: Return true if the
        operand is a DImode register or MEM.

        * config/fr30/fr30.h (PREDICATE_CODES): Add di_operand and
        nonimmediate_di_operand.

        * config/fr30/fr30-protos.h Add fr30_move_double, di_operand, and
        nonimmediate_di_operand.

        * config/fr30/fr30.md (movdi): New pattern.  Required because
        other patterns generate DImode results.
        (movdi_insn): New pattern.

2000-05-12  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (struct shadow_summary): Define
        bitfields as type unsigned int.

Sat May 13 00:09:59 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/t-avr: Added definition of FLOAT while generates
        fp-bit.c

        * config/avr/avr.md: `NEXT_INSN (insn)' substituted to `insn' in
        peepholes for tst+jump = sbrs/sbrc optimization.

Fry May 12 20:03:00 CEST 2000  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_push_insn): Do not adjust stack pointer when
        preallocating.

Fri May 12 19:03:58 2000  Philippe De Muyter  <phdm@macqel.be>

        * ggc-simple.c (offsetof): Macro fallback definition moved from here ..
        * system.h (offsetof): ... to here.

2000-05-12  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (final.o): Depend on BASIC_BLOCK_H.
        * final.c (final_end_function): Use app_disable.  Rearrange note
        handling into a switch.  Emit deleted labels.
        (output_asm_label): Generate label strings for deleted labels.
        * flow.c (tail_recursion_label_list): New.
        (find_basic_blocks_1): Set label_value_list directly.  Collect list
        of tail recursion labels from call_placeholders.  Don't add deleted
        labels to the label value list.
        (cleanup_cfg): Use free_EXPR_LIST_list.
        (flow_delete_insn_chain): Turn non-removable labels into notes.
        (flow_delete_block): Don't disable deleting the block because of
        a non-removable label.
        (tail_recursion_label_p): New.
        (merge_blocks_move_predecessor_nojumps): Don't disable the merge
        because of a label.
        (merge_blocks_move_successor_nojumps): Likewise.  Also move a
        jump table.
        (merge_blocks): Disable a merge because of tail recursion labels.
        * ifcvt.c (merge_if_block): Don't disable a merge because of a label.
        Use a more accurate measure of not merging the join block.
        (find_if_block): Don't disable conversion because of a label.
        (find_if_case_1, find_if_case_2): Likewise.
        * jump.c (duplicate_loop_exit_test): Preserve the kind of list
        element when copying.
        (squeeze_notes): Also leave EH notes.
        (mark_jump_label): Ignore deleted labels.  Use an INSN_LIST for
        REG_LABEL notes.
        (delete_insn): Preserve LABEL_NAME in NOTE_SOURCE_FILE when
        deleting a label.
        * print-rtl.c (print_rtx): Print NOTE_SOURCE_FILE for
        NOTE_INSN_DELETED_LABEL.  Print `[# deleted]' for a label_ref
        referring to a deleted label.  Convert tail handling to a switch.
        * rtl.def (CODE_LABEL): Rearrange elements to be compatible with NOTE
        for NOTE_INSN_DELETED_LABEL.
        (NOTE): Fix commentary.
        * rtl.h (REG_LABEL): Update commentary wrt INSN_LIST.
        (REG_CC_SETTER, REG_CC_USER, REG_LIBCALL): Likewise.
        (CODE_LABEL_NUMBER, LABEL_NAME): Update index.
        (LABEL_NUSES, LABEL_REFS): Likewise.
        * unroll.c (copy_loop_body): Don't copy NOTE_INSN_DELETED_LABEL.

2000-05-12  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c(format_write): buglet & relaxed rules
        * fixinc/check.diff: updated
        * fixinc/inclhack.def: corrected & added some test_text-s
        * fixinc/genfixes: removed unneeded options to autogen invocation
        * fixinc/fixincl.tpl: Specified the output file
        * fixinc/fixfixes.c: visual appearance
        * fixinc/fixincl.x: regenerate

2000-05-12  Zack Weinberg <zack@wolery.cumb.org>

        * fixinc/fixfixes.c (IO_use_fix, IO_defn_fix, CTRL_use_fix,
        CTRL_defn_fix): Delete.
        (fix_char_macro_defines, fix_char_macro_uses): Rename to
        char_macro_def_fix and char_macro_use_fix, respectively.  Put
        them into the FIXUP_TABLE.  Get the string to search for from
        a c_fix_arg.

        (format_write): New function.
        (format_fix): Use it.

        (FIX_PROC_HEAD): Constify text parameter.
        (machine_name_fix): Constify all char *s.
        * fixtests.c (skip_quote): Remove double static.

        * inclhack.def (io_def_quotes, io_use_quotes, ctrl_def_quotes,
        ctrl_use_quotes): Update for new scheme.
        * fixincl.x: Regenerate.

2000-05-12  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (PREFERRED_DEBUGGING_TYPE): Redefine as
        DWARF2_DEBUG.
        (DWARF2_ASM_LINE_DEBUG_INFO): Define.
        (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.

2000-05-11  Robert Lipe <robertlipe@usa.net>

        * fixinc/inclhack.def (hpux8_bogus_inlines): Delete bypass for SCO.
        * fixincl.x: Regenerate.

2000-05-11  Richard Henderson  <rth@cygnus.com>

        * calls.c: Revert both 05-09 patches.

2000-05-11  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.c (print_operand): Print FP constants in
        hexadecimal.
        * config/mn10300/mn10300.md (movsf, movdf): Use the `F' constraint
        for FP values.

        * mklibgcc.in (EQ): Define it to an equal sign in the Makefile,
        and replace any occurrences of `=' in multilib dirs with `$(EQ)'.

2000-05-11  Jason Merrill  <jason@casey.cygnus.com>

        * fixinc/fixincl.c (run_compiles): Don't crash on null pz_machine.

2000-05-11  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/fixfixes.c, fixinc/fixtests.c: Update commentary.

Thu May 11 22:28:05 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.c (jump_over_one_insn_p): New declaration.
        * config/avr/avr.c (jump_over_one_insn_p): New function.
        * config/avr/avr.md: New peepholes added. Output test and
        conditional jump to "sbrc" or "sbrs" command.

2000-05-11  Mark Elbrecht  <snowball3@bigfoot.com>

        * cppmain.c (main): Use IS_DIR_SEPARATOR.

2000-05-11  Jakub Jelinek  <jakub@redhat.com>

        * except.c (find_exception_handler_labels_1): New function.
        (find_exception_handler_labels): Split into two functions, dive
        into CALL_PLACEHOLDERs when looking for exception handler labels.

2000-05-11 Stan Cox <scox@cygnus.com>

        * regrename.c (replace_reg_in_block): Improve REG_DEAD handling.
        * timevar.def (TV_RENAME_REGISTERS): Move before TV_SCHED2.
        * toplev.c (rest_of_compilation): Call regrename_optimize before sched2.

2000-05-11  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c (double_slash_fix):  obsolete
        (else_endif_label_fix): obsolete
        (format_fix):  new, unused as yet
        (main): obsolete
        * fixinc/fixlib.h: added fix description struct for use by format_fix
        * fixinc/fixincl.c: removed the struct & test for SIGIOT befure using
        * fixinc/Makefile.in:  compile fixfixes.c and fixtests.c as separate
        modules.  Removed the vestiges of the script version.
        Added support for "make check".
        * fixinc/check.diff: base diff file (needs work!!)
        * fixinc/check.tpl: quiet the fixup output
        * fixinc/fixtests.c (main): obsolete
        * fixinc/fixincl.sh:  don't bother copying fixincl to ..
        * fixinc/fixincl.tpl:  provide for arguments to c_fix routines

Thu May 11 11:57:02 MET DST 2000  Jan Hubicka <jh@suse.cz>

        * toplev.c (rest_of_compilation): Remove dead code after
        combine.

2000-05-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (collect_funlike_expansion): Make "# is not
        followed by a macro argument name" a pedwarn, not an error.
        Preserve the # in the output.  Suppress the warning if lang_asm.

Thu May 11 01:19:31 2000  Jeffrey A Law  (law@cygnus.com)

        * configure.in (hppa*64*-*-hpux11*): New target for PA64 support.
        * configure: Rebuilt.

2000-05-10 Laurynas Biveinis <lauras@softhome.net>

        * i386/xm-djgpp.h (XREF_FILE_NAME): Add mising brace.

2000-05-10  Kazu Hirata  <kazu@hxi.com>

        * combine.c (try_combine): Fix a typo.

Wed May 10 21:31:44 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.md (insv): Add comment.

2000-05-10  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (libgcc.a, stmp-multilib): Depend on FPBIT and DPBIT.
        * mklibgcc.in: Rewrite to not use functions.  Don't shortcut
        dependancies on FPBIT and DPBIT.

2000-05-10  Nick Clifton  <nickc@redhat.com>

        * flow.c (find_auto_inc): Do not bias REG_N_REFS by loop_depth
        when optimising for size.
        (mark_used_regs:) Ditto.
        (try_pre_increment_1): Ditto.

2000-05-10  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c (lex): Use %.*s to print non-NUL-terminated string.
        Make error message friendlier.

        * cpphash.h (struct hashnode): Use struct hack for name
        member.
        * cpphash.c (struct hashdummy): New.
        (eq_HASHNODE): Second argument is a hashdummy, not a HASHNODE.
        (make_HASHNODE): No need to set ->name pointer.  Correct
        setting of p.
        (cpp_lookup): Make 'dummy' a struct hashdummy.  Tidy up a bit.

2000-05-10  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_basic_blocks_1): Remove any spare bb_note
        after completion.

2000-05-10  Bruce Korb  <bkorb@gnu.org>

        * fixinc/gnu-regex.c:  reg_syntax_t re_syntax_options must be static

2000-05-10  Eric Schweitz  <schweitz@nortelnetworks.com>

        * dwarfout.c (dwarfout_finish): Call retry_incomplete_types
        after we enter .debug.

2000-05-10  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (gen_subprogram_die): Fixup die_parent for the
        abstract instance of a nested inline function.

        * stor-layout.c (finish_record_layout): finalize_type_size
        before laying out the pending_statics.

Wed 10 May 09:36:47 2000  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (spell_token): New function.
        (spell_string, spell_comment, spell_name): fold into
        spell_token.    
        (I, S): Add macros.
        (E, H): Remove macros.
        (save_comment): Save comment opening characters too.
        (_cpp_lex_file): Update to use spell_token.  Tidy up comment
        handling.
        * cpplib.h (I, S): Add macros.
        (E, H): Remove macros.
        (TTYPE_TABLE): Update entries for new speller.
        (SYNTAX_ASSERT): Remove.

Wed 10 May 09:08:30 2000  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (_cpp_lex_line): Maintain PREV_WHITESPACE flag
        when removing escaped newlines.  Reverse sense of test for
        escaped newline.

2000-05-09  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_basic_blocks_1): Do not delete the first
        bb_note we run across.
        (create_basic_block): Use reorder_insns to move an existing
        bb_note to the correct place.

2000-05-09  Richard Henderson  <rth@cygnus.com>

        * calls.c (expand_call): Increment currently_expanding_call
        before calling optimize_tail_recursion.

Tue May  9 18:54:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * reload1.c (reload_combine): Fix errors in last change.

2000-05-09  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.c (used_arg): Skip over a semicolon at the end of the
        split-up loop; don't break out of it.

        * Makefile.in (WARN_CFLAGS): Add -Wwrite-strings.
        (tree.o): Depend on output.h.

        * c-decl.c (pending_invalid_xref_file,
        current_function_prototype_file): Constify.
        (pushdecl): Constify a local char *.
        (define_label): Constify filename parameter.
        * c-lex.c (init_parse): Constify parameter and return value.
        * c-typeck.c (c_expand_asm_operands): Constify filename parameter.
        * c-tree.h: Update prototypes.
        * c-parse.in: Constify filename member of %union, and if_stmt_file.
        * c-parse.y, c-parse.c, c-parse.h, objc/objc-parse.y,
        objc/objc-parse.c: Regenerate.

        * dwarfout.c (dwarfout_init): Constify main_input_filename parameter.
        * dwarfout.h: Update prototypes.
        * expr.c (expand_expr): Constify a local char *.
        * flags.h: Constify main_input_filename.
        * function.c (expand_function_end): Constify filename parameter.
        * genrecog.c (make_insn_sequence): Use a character array for
        c_test_pos.
        (main): Remove unused variables.
        * input.h: Constify input_filename, main_input_filename, and
        file_stack.name.  Update prototypes.
        * output.h: Declare first_global_object_name and
        weak_global_object_name here, as const char *.
        * stmt.c (expand_asm_operands): Constify filename parameter.
        * toplev.c (compile_file, push_srcloc, debug_start_source_file):
        Constify filename parameter.
        (input_filename, main_input_filename): Constify.
        * toplev.h: Update prototypes.
        * tree.c: Include output.h.  Don't declare
        first_global_object_name or weak_global_object_name.  Clean up string
        bashing in get_file_function_name_long.
        * tree.h (struct tree_decl): Constify filename member.
        (input_filename): Constify.
        Update prototypes.
        * varasm.c (first_global_object_name, weak_global_object_name):
        Constify.
        (assemble_start_function, assemble_variable): Clean up string bashing.

        * gcc.c: Constify all spec-related strings initialized,
        transitively, from string constants.  Constify all strings
        and string variables related to multilibs.
        (set_spec, read_specs): Cast argument to free to PTR.
        (used_arg): Do not modify multilib_matches.  Use strncmp plus
        length comparison to compare multilib switches.
        * genmultilib: Constify everything declared in multilib.h.

Tue May  9 22:28:03 2000  Denis Chertykov  <denisc@overta.ru>

        * flow.c (flow_delete_insn): Use INSN_DELETED_P for marking insn
        as deleted.

Tue May  9 20:52:43 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.h (extra_constraint): change a type of
        second argument from char to int to avoid warnings.
        (asm_output_byte): Likewise.
        
        * config/avr/avr.c (MAX_LD_OFFSET) New macro.
        (initial_elimination_offset): Handle elimination from
        FRAME_POINTER_REGNUM to STACK_POINTER_REGNUM.
        (legitimate_address_p): Use MAX_LD_OFFSET.
        (legitimize_address): Likewise.
        (out_movqi_r_mr): Likewise.
        (out_movhi_r_mr): Likewise, use `fatal_insn' instead of `fatal'.
        (out_movsi_r_mr): Use MAX_LD_OFFSET.
        (out_movsi_mr_r): Likewise.
        (out_movqi_mr_r): Likewise.
        (out_movhi_mr_r): Likewise.
        (notice_update_cc): Correct CC for the ashrqi3 with the shift
        count as CONST_INT != 6.
        (ashlqi3_out): Coding style modifications. Run `fatal_insn' if
        shift count is a CONSTANT_P, but not a CONST_INT.
        (ashlhi3_out): Coding style modifications.
        (ashlsi3_out): Likewise.
        (ashrhi3_out): Likewise.
        (ashrsi3_out): Likewise.
        (lshrhi3_out): Likewise.
        (lshrsi3_out): Likewise.
        (ashrqi3_out): Generate shift for any known constant count without
        scratch register. Run `fatal_insn' if shift count is a CONSTANT_P,
        but not a CONST_INT.
        (lshrqi3_out): Coding style modifications. Run `fatal_insn' if
        shift count is a CONSTANT_P, but not a CONST_INT. 
        (extra_constraint): change a type of
        second argument from char to int to avoid warnings.
        (asm_output_byte): Likewise.
        (asm_file_end): Output size generated commands count as a hex
        number too.

        * config/avr/avr.h (RETURN_ADDR_RTX): New macro.

        * config/avr/avr.md (addhi3): Fragment commented by &&0 is
        removed.
        (ashlqi3): Values of "length" attribute changed. Shift count
        uses constraints 'n' instead of 'i'.
        (ashrqi3): Likewise. Values of "cc" attribute changed. Generate
        shifts without clobber register.
        (lshrqi3): Shift count uses constraints 'n' instead of 'i'.
        (call_insn): Correct test for which_alternative == 1 (was 0).
        (call_value_insn): Likewise.
        
        * config/avr/t-avr: Remove definition of FLOAT while generates
        fp-bit.c

2000-05-09  Bruce Korb  <bkorb@gnu.org>

        * fixinc/check.tpl:  Template for checking fixes
        * fixinc/inclhack.def:  Added 'test_text' for many fixes
        disable hpux8_bogus_inlines on SCO
        * fixinc/fixinc.sco:  Oh, yes, we don't need this any more.

Tue May  9 16:30:27 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (expand_call): Reorganize somewhat in order
        to avoid unnecesary recalculation inside loop and make
        tail call failure code cleaner.
        
Tue May  9 06:30:20 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (nonlocal_reference_p): Minor reformatting.
        * reload.c (find_equiv_reg): Simplify logic for
        CALL_INSN_FUNCTION_USAGE since can't have SUBREG or pseudos and
        some some reformatting.
        * reload1.c (reload_combine): Don't assume everything in
        CALL_INSN_FUNCTION_USAGE is a REG and clean up code a bit.

2000-05-08  Richard Henderson  <rth@cygnus.com>

        * final.c (current_insn_predicate): New.
        (final_scan_insn): Set it.
        * output.h (current_insn_predicate): Declare.

        * ifcvt.c (cond_exec_process_insns): New argument prob_val.
        Attach it to call insns.
        (cond_exec_process_if_block): Track probability for true and
        false branches.
        (dead_or_predicable): Likewise.

        * predict.c (PROB_NEVER, PROB_VERY_UNLIKELY): New.
        (PROB_UNLIKELY, PROB_EVEN, PROB_LIKELY): New.
        (PROB_VERY_LIKELY, PROB_ALWAYS): New.
        (estimate_probability, expected_value_to_br_prob): Use them.

        * config/ia64/ia64-protos.h (ia64_expand_prediction): Declare.
        * config/ia64/ia64.c (ia64_print_operand_address): Handle 'j'.
        (ia64_expand_prediction): New.
        (emit_insn_group_barriers): Don't look at notes.  Emit barriers
        as needed after calls.
        (ia64_epilogue_uses): Mark b0 used.
        * config/ia64/ia64.md (beq_true, beq_false): Remove.
        (bne_true, bne_false): Remove.
        (eq_return, eq_not_return, ne_return, ne_not_return): Remove.
        (br_true, br_false): New.  Use predicate_operator and
        ia64_expand_prediction.
        (return_true, return_false): Likewise.
        (call_internal): Use ia64_expand_prediction.  Don't emit stop bit.
        (call_internal1, call_value_internal): Likewise.
        (call_value_internal1, call_multiple_values_internal1): Likewise.

        * config/ia64/ia64.c (ia64_direct_return): Require frame size zero.

        * config/ia64/ia64.md (extendsfdf2): Split only after reload.

2000-05-08  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (may_trap_p): Consider old-style and volatile
        asms to trap.

Mon May  8 17:16:48 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (RETURN_ADDR_RTX): Use COUNT not count.

2000-05-08  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.h (predicate_operator): Declare.

        * config/ia64/ia64.md (extendsfdf2): Split the nop case out
        of existance.

        * gensupport.c (process_rtx): Copy and post-process each member
        of the define_insn rtvec individually.

Mon  8 May 22:17:35 2000  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (spell_token): New function.
        (TOKEN_LEN): Add 1 for whitespace.
        (_cpp_lex_file): Update to use spell_token.
        * cpplib.h (E): Remove.
        (TTYPE_TABLE): Update CPP_VSPACE entry.

2000-05-08  Richard Henderson  <rth@cygnus.com>

        * flow.c (init_propagate_block_info): Watch out for conditional
        branch to next instruction, and thus one outgoing edge.

        * config/ia64/ia64.c (ia64_encode_section_info): Exit early
        for global register variables; don't special case __[CD]TOR_LIST__;
        mind ggc_p for string allocation.

2000-05-08  Nick Clifton  <nickc@cygnus.com>

        * config/i386/i386.h (ELIMINABLE_REGS): Fix comment.

2000-05-08  Bruce Korb  <bkorb@gnu.org>

        * fixinc/mkfixinc.sh:  fixinc.sco is no longer used
        i?86-*-msdosdjgpp* no longer uses fixincludes
        * fixinc/genfixes:  inclhack.sh and fixincl.sh are no longer generated
        * fixinc/inclhack.sh:  deleted
        * fixinc/hackshell.tpl:  deleted
        * fixinc/inclhack.tpl:  deleted
        * fixinc/Makefile.in:  Remove dependencies on above
        * fixinc/fixincl.sh:  "DO NOT EDIT" text modified

2000-05-08  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h: Remove undefines which disabled .ctor/.dtor
        support.

2000-05-07  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (LOOSE_CFLAGS): Add /g modifiers to both sed
        substitutions.

Sun  7 May 08:43:53 2000  Neil Booth  <NeilB@earthling.net>

        * cpplex.c: Move new lexer definitions and prototypes
        to top.  Conditional include these and the code if
        NEW_LEXER is defined.  Rename functions whose names
        clash if this code included.

Sun May  7 00:54:57 EDT 2000  John Wehle  (john@feith.com)

        * rtl.def (COND_EXEC): Clarify.

        * i386.md (extendsidi2): Clobber (reg:CC 17) in the
        same fashion as zero_extendsidi2.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (predicate_operator): New.
        (ia64_print_operand): Handle 'J'.
        (rtx_needs_barrier): Handle COND_EXEC.
        * config/ia64/ia64.h (BRANCH_COST): Define.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md: Docuement used unspec values.
        (attr predicable): New.
        (movxf, movxf_internal): New.
        (extendsfdf2): Don't comment out nop.
        (floatdidf2): Remove.
        (truncxfsf2, truncxfdf2, floatdixf2): New.
        (abssi2, absdi2): Put the neg in the "true" slot.
        (conditional branch instructions): Mark not predicable.
        (cmov*_internal): Use predicate_operator.  Split to cond_exec.
        (abs*_internal): Likewise.
        (alloc, set_bsp): Mark not predicable.
        (barrier, insn_group_barrier, flush_cache): Likewise.
        (define_cond_exec): New.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * c-decl.c: Include "tm_p.h".

        * config/ia64/ia64-protos.h: Rearrange decls to reduce ifdef madness.
        (fetchadd_operand, ia64_expand_fetch_and_op): Declare.
        (ia64_expand_op_and_fetch): Declare.
        * config/ia64/ia64.c: Include "toplev.h".  Kill trailing whitespace.
        (setjmp_operand): Constify variables for XSTR.
        (ia64_encode_section_info): Likewise.
        (ia64_print_operand): Use %d for exact_log2; cast 32-bit printed
        values to int.
        (ia64_asm_output_external): Constify name.
        (process_set): Use HOST_WIDE_INT_PRINT_DEC for frame size.
        (process_for_unwind_directive): Provide switch default.
        (ia64_expand_compare_and_swap): Remove unused variables.
        (ia64_expand_builtin): Likewise.
        * config/ia64/ia64.h (ASM_OUTPUT_BYTE): Mask and cast value to int
        for printing.

        * config/ia64/ia64.c (sdata_symbolic_operand): Mark unused args.
        (symbolic_operand, function_operand, setjmp_operand): Likewise.
        (shift_count_operand, shift_32bit_count_operand): Likewise.
        (shladd_operand, fetchadd_operand, ia64_function_prologue): Likewise.
        (ia64_function_epilogue, ia64_setup_incoming_varargs): Likewise.
        (ia64_function_arg_partial_nregs, ia64_function_value): Likewise.
        (ia64_print_operand_address, ia64_secondary_reload_class): Likewise.
        (ia64_expand_builtin): Likewise.
        (call_multiple_values_operation): Make dest_regno unsigned.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * rtl.def (DEFINE_COND_EXEC): New.
        * md.texi: Document it.

        * gensupport.c (input_file): Remove.
        (struct queue_elem): Add lineno.
        (rtx_ready_queue): Remove.
        (errors): New.
        (predicable_default): New.
        (predicable_true, predicable_false): New.
        (define_attr_queue, define_attr_tail): New.
        (define_insn_queue, define_insn_tail): New.
        (define_cond_exec_queue, define_cond_exec_tail): New.
        (other_queue, other_tail): New.
        (queue_pattern): New.
        (process_rtx): Add patterns to the appropriate queues.
        (is_predicable, identify_predicable_attribute): New.
        (n_alternatives, collect_insn_data): New.
        (alter_predicate_for_insn, alter_test_for_insn): New.
        (shift_output_template, alter_output_for_insn): New.
        (process_one_cond_exec, process_define_cond_exec): New.
        (init_md_reader): Read the entire file.  Process define_cond_exec.
        (read_md_rtx): Return elements from the queues.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_set_1): Don't update conditional life info
        if the register is not_dead.

2000-05-06  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (STAGESTUFF): Add genrtl.c and genrtl.h.
        (mostlyclean): Also delete fixincl, fixinc.sh, and
        specs.ready, and make clean in the fixinc subdir.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (gensupport.o): Compile for the host.
        (host-prefix gensuuprt.o): Remove.
        (genflags.o): Depend on gensupport.h and OBSTACK_H.
        (genattrtab.o): Likewise.
        (gencodes.o): Depend on gensupport.h.
        (genemit.o, genopinit.o, genrecog.o, genextract.o): Likewise.
        (genpeep.o, genattr.o, genoutput.o): Likewise.

        * gensupport.c (obstack, rtl_obstack): New.
        (init_md_reader): Initialize rtl_obstack.
        * gensupport.h (rtl_obstack): Declare.
        (message_with_line): Declare.

        * genattr.c: Remove all traces of obstack manipulation.
        * gencodes.c, genconfig.c, genemit.c, genextract.c: Likewise.
        * genopinit.c, genoutput.c, genpeep.c, genrecog.c: Likewise.

        * genattrtab.c (obstack, rtl_obstack): Remove.
        (main): Don't init rtl_obstack.
        * genflags.c: Likewise.

        * genrecog.c (message_with_line): Move ...
        * gensupport.c: ... here.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * c-typeck.c (build_c_cast): Remove dead code.

2000-05-06  Richard Henderson  <rth@cygnus.com>

        * flow.c (split_edge): Don't allocate global_live_at_start for
        the new block unless the old blocks had them as well.

        * flow.c (mark_set_1): Respect not_dead when updating reg_live.

        * ifcvt.c (noce_process_if_block): Don't use an insn_b from
        test_bb if a or b uses x.

2000-05-06  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h: Remove conditional #define of __extension__.
        * rtl.h: Add __extension__ to RTL_CHECK1, RTL_CHECK2,
        RTL_CHECKC1, RTL_CHECKC2, and RTVEC_ELT macros
        (ENABLE_RTL_CHECKING only).
        * tree.h: Add __extension__ to TREE_CHECK, TREE_CLASS_CHECK,
        CST_OR_CONSTRUCTOR_CHECK, and EXPR_CHECK macros
        (ENABLE_TREE_CHECKING only).
        * varray.h: Add __extension__ to VARRAY_CHECK macro
        (ENABLE_CHECKING only).

2000-05-06  Richard Earnshaw (reanrsha@arm.com)

        Use new tail-calling mechanism on ARM.
        * arm.md (sibcall, sibcall_value): New expands.
        (sibcall_insn, sibcall_value_insn, sibcall_epilogue): New insns.
        (tailcalling peepholes): Delete.
        (push_multi): Simplify.
        * arm.c (lr_save_eliminated): Delete definition.
        (pattern_really_clobbers_lr, function_really_clobbers_lr): Delete.
        (output_return_instruction): Remove checks on lr_save_eliminated.
        (output_arm_prologue): Remove old tail-calling code.
        (arm_output_epilogue): New parameter, really_return.  All callers
        changed.  Handle tail-calling epilogues.
        * arm.h (lr_save_eliminated): Delete declaration.
        (frame_pointer_needed): Delete declaration.
        * arm-protos.h (arm_output_epilogue): Adjust prototype.

        * arm.md (is_thumb): Examine symbol thumb_code, not expression
        TARGET_ARM.
        * arm.c (thumb_code): Define it.
        (arm_override_options): Set it.
        * arm.h (thumb_code): Declare it.
        
2000-05-06  Richard Earnshaw (reanrsha@arm.com)

        * arm-protos.h (arm_dllexport_name_p, arm_dllimport_name_p): Constify.

2000-05-06  Richard Earnshaw (reanrsha@arm.com)

        * arm.c (arm_gen_load_multiple, arm_gen_store_mulitple): Don't add
        bogus clobber to insns.
        (load_multiple_operation, store_mulitple_operation): Don't check 
        for it.
        * arm.md (ldmsi_postinc, stmsi_postinc): Adjust accordingly.

        * arm.md (and_scc, ior_scc): Add missing mode.

        * arm.md (call_value_symbol): Remove predicate from op2.

        * arm.h (SPECIAL_MODE_PREDICATES): Define.
        
Sat May  6 06:25:56 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (get_subtarget): New function.
        (force_operand, expand_expr, do_store_flag): Use it.

        * toplev.c (compile_file): Don't take strlen of NAME if null.

2000-05-06  David Edelsohn  <edelsohn@gnu.org>

        * xcoffout.c (xcoff_current_include_file,
        xcoff_current_function_file, xcoff_lastfile): Constify char *.
        (xcoffout_source_file, xcoffout_source_line): Make filename 'const
        char *'.
        (xcoffout_declare_function): Make name 'const char *'.
        (xcoffout_end_epilogue): Make fname 'const char *'
        * xcoffout.h (xcoff_current_include_file, xcoff_lastfile,
        xcoffout_declare_function, xcoffout_source_line): Match above.

        * aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -mpowerpc64 without
        -maix64 is error.
        * rs6000.c (print_operand): Fix lossage typo.
        (output_cbranch): Remove "cr" decoration for now.
        * rs6000.h (ASM_OUTPUT_DEF_FROM_DECLS): Make alias 'const char *'. 

Sat May  6 06:55:32 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (out_shift_with_cnt): Bugfix for shift by
        constant count.

2000-05-05  Bruce Korb  <bkorb@gnu.org>

        * fixinc/genfixes: Improve the matching for make target names

2000-05-05  Catherine Moore  <clm@cygnus.com>

        * c-common.c (decl_attributes):  For TYPE_DECLs attach the
        attribute to the decl.
        * c-decl.c (pushdecl): Propagate the USED attribute to the 
        type copy.

2000-05-05  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (reg_overlap_mentioned_p): Treat parallels in the
        same way emit_group_load does.

2000-05-05 Mark Elbrecht <snowball3@bigfoot.com>

        * gcc.c (set_input) [HAVE_DOS_STYLE_FILE_SYSTEM]: Skip drive name.

        * toplev.c (output_file_directive): Use IS_DIR_SEPARATOR.
        (main): Likewise.

2000-05-05 Rodney Brown <RodneyBrown@mynd.com>

        * pa.h (FUNCTION_ARG_ADVANCE): Warning removal.

Fri May  5 10:29:21 2000  Marc Espie <espie@cvs.openbsd.org>

        * config/openbsd.h (LINK_SPEC): pass correct flags to ld 
        to support -shared, on platforms with dynamic libraries.

Fri May  5 10:27:06 2000  Philippe De Muyter  <phdm@macqel.be>

        * system.h (S_ISBLK): Provide fallback definition.

2000-05-05  Geoff Berry  <geoffb@bops.com>

        * extend.texi (Extended Asm): Document inability to give asm
        statements access to condition codes.

2000-05-05  Marek Michalkiewicz  <marekm@linux.org.pl>

        * varasm.c (asm_emit_uninitialised): Use 0, not NULL
        as arg 2 of UNIQUE_SECTION.

Fri May  5 10:11:41 2000  Jeffrey A Law  (law@cygnus.com)

        * predict.c: Remove May 4 change.
        * bb-reorder.c (make_reorder_chain): Do not perform block movement
        if we have predicted the branch at 50-50 probability.

2000-05-05  Richard Henderson  <rth@cygnus.com>

        * flow.c (init_propagate_block_info): Fix merge error
        in HAVE_conditional_execution code.

Fri May  5 07:43:50 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (out_shift_with_cnt): Genetare a more optimal
        shift cycle for unknown shift count. Also generates dec + brpl.
        (ashlqi3_out): Don't generate dec + brpl which now generates by
        `out_shift_with_cnt'.
        (ashlhi3_out): Likewise.
        (ashlsi3_out): Likewise.
        (ashrqi3_out): Likewise.
        (ashrhi3_out): Likewise.
        (ashrsi3_out): Likewise.
        (lshrqi3_out): Likewise.
        (lshrhi3_out): Likewise.
        (lshrsi3_out): Likewise.

2000-05-04 Mark Elbrecht <snowball3@bigfoot.com>

        * gcc.c (free_split_directories): Correct typo in explanation
        of make_relative_prefix.

2000-05-04  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.h (PREDICATE_CODES): Add floating-point
        comparison codes to branch_comparison_operator.

2000-05-04  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (noce_process_if_block): Always reset X in the A == B case.

2000-05-04  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (FPBIT_FUNCS): Remove _df_to_usi.
        (DPBIT_FUNCS): Remove _sf_to_usi.
        (stmp-multilib): Pass LIB1ASMSRC to libgcc.mk.

        * ifcvt.c (noce_process_if_block): Fail if A or B modified
        between condition and jump.

        * libgcc2.c (near eh_context_specific): Comment #endif string.
        * longlong.h: Don't use strings with embedded newlines.

2000-05-04  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000-protos.h: Add output_cbranch.
        * config/rs6000/rs6000.c (ccr_bit_negated_p): Delete.
        (print_operand): Delete %t and %T codes.
        (output_cbranch): New function.  Support branch prediction.
        * config/rs6000/rs6000.md: Use output_cbranch for
        conditional branches and returns.

2000-05-04  Jason Merrill  <jason@casey.cygnus.com>

        * simplify-rtx.c (simplify_ternary_operation): Cast to unsigned.
        * stor-layout.c (place_field): Likewise.
        * integrate.h (struct inline_remap): Make regno_pointer_align unsigned.
        * expr.c (store_expr): Make align unsigned.
        * explow.c (plus_constant_wide): Make low words unsigned.
        * expmed.c (choose_multiplier): Likewise.
        * fold-const.c (fold):  Likewise.
        * tree.h (build_int_2): Likewise.
        * tree.c (build_int_2_wide, tree_int_cst_msb): Likewise.
        * emit-rtl.c (gen_reg_rtx): Add cast to unsigned char*.
        (init_emit): Change cast to unsigned char*.
        * varasm.c (compare_constant_1): Add cast to char*.
        * gcse.c (delete_null_pointer_checks): Change cast to unsigned int*.
        * reload1.c (reload): Likewise.

        * rtl.h (MEM_SET_IN_STRUCT_P): Use do { } while (0).

Thu May  4 14:37:23 2000  Jeffrey A Law  (law@cygnus.com)

        * predict.c (estimate_probability): If no prediction was found, then
        predict the successor that is the next physical block (if such a
        successor exists).

2000-05-04  Richard Henderson  <rth@cygnus.com>

        * config/alpha/t-alpha (LIB2FUNCS_EXTRA): Use qrrnd.asm in place.

2000-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h: Don't wrap <sys/types.h> with HAVE_SYS_TYPES_H.

2000-05-04  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin.h (CPP_PREDEFINES): Don't define __STDC__. Move 
        attribute macros from here ...
        (CPP_SPEC): to here.
        * i386/mingw32.h (CPP_PREDEFINES): Likewise.
        (CPP_SPEC): Likewise.
        * i386/crtdll.h (CPP_PREDEFINES): Delete attribute macros. 

        * Makefile.in ($(HOST_PREFIX_1)gensupport.o): Add build rule.
        (libgcc.a): Pass LIB1ASMSRC to libgcc.mk.

2000-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * bb-reorder.c (get_next_bb_note, get_prev_bb_note): Prototype.
        
        * diagnostic (vbuild_message_string, build_message_string,
        build_location_prefix, output_get_prefix, init_output_buffer,
        output_notice, vline_wrapper_message_with_location,
        v_message_with_decl, default_print_error_function): De-constify.
        (set_real_maximum_length): Prototype.

        * diagnostic.h (struct output_buffer, init_output_buffer,
        output_get_prefix, output_set_prefix): De-constify.

        * function.c (init_function_start): Constify.

        * gensupport.c (remove_constraints, process_rtx): Prototype.

        * gthr-posix.h: Indent uses of #pragma.

        * objc/objc-act.c (ggc_mark_imp_list, ggc_mark_hash_table):
        Prototype.

        * predict.c (find_expected_value): Delete prototype.
        (expected_value_to_br_prob): Initialize variable `ev_reg'.

        * sbitmap.h (debug_sbitmap): Prototype.

        * ssa.c (compute_coalesced_reg_partition): Prototype.

        * stor-layout.c (debug_rli): Prototype.

        * tree.h (round_down): Prototype.
        (init_function_start): Constify.

2000-05-04  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h: #define __extension__ away if GCC_VERSION < 2095
        (overly conservative).  Change extern inline wrappers to
        static inline, define them always, use PARAMS properly.
        * cpplex.c (_cpp_get_directive_token): Don't issue pedantic
        whitespace warnings for \f and \v at the beginning of a line.

Thu May  4 10:03:50 2000  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (schedule_insns): Free the flow edge list when it
        is no longer needed

2000-05-04  Bruce Korb  <bkorb@gnu.org>

        * fixincl/inclhack.def: added broken_cabs -
        Remove `extern double cabs' declarations from math.h
        * fixincl/inclhack.sh: regen
        * fixincl/fixincl.x: regen
        * fixincl/fixincl.c: Remove BOGOSITY code
        * fixincl/mkfixinc.sh: Remove code for installing "shell" version

Thu May  4 09:45:12 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and
        MEM_ALIAS_SET.
        * alias.c (canon_rtx): Don't copy RTX_UNCHANGING_P or MEM_ALIAS_SET
        when calling MEM_COPY_ATTRIBUTES.
        * emit-rtl.c (operand_subword, change_address): Likewise.
        * explow.c (stabilize): Likewise.
        * expr.c (protect_from_queue, emit_move_insn_1): Likewise.
        * integrate.c (copy_rtx_and_substitute): Likewise.
        * combine.c (combine_simplify_rtx): Don't copy RTX_UNCHANGING_P
        when calling MEM_COPY_ATTRIBUTES.
        (make_extraction, simplify_shift_const, gen_lowpart_for_combine):
        Likewise.
        * cse.c (gen_lowpart_if_possible): Likewise.
        * function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
        * optabs.c (gen_move_insn): Likewise.
        * recog.c (validate_replace_rtx_1): Likewise.
        * simplify-rtx.c (add_mem_for_addr): Likewise.
        * stmt.c (expand_anon_union_decl): Likewise.
        * config/arm/arm.md: Likewise.
        * config/h8300/h7300.c (fix_bit_operand): Likewise.
        * config/m88k/m88k.c (legitimize_address, block_move_loop): Likewise.
        (block_move_no_loop, block_move_sequence): Likewise.
        * config/rs6000/rs6000.c (expand_block_move_mem): Likewise.
        * config/alpha/alpha.c (get_aligned_mem): Likewise.
        Clear MEM_ALIAS_SET.
        * final.c (alter_subreg): Don't copy MEM_ALIAS_SET when calling
        MEM_COPY_ATTRIBUTES.

2000-05-03  Robert Lipe <robertlipe@usa.net>
        
        * configure.in (i[34567]86-*-isc*) [tmake_file]: Add t-i386bare
        to suppress libgcc1.
        (i[34567]86-*-sco3.2v5*) Likewise.
        (i[34567]86-*-sco3.2v4*) Likewise.
        (i[34567]86-*-sco) Likewise.
        (i[34567]86-*-solaris2) Likewise.
        (i[34567]86-*-sysv5*) Likewise.
        (i[34567]86-*-sysv4*) Likewise.
        (i[34567]86-*-udk*) Likewise.
        (i[34567]86-*-sysv*) Likewise.

2000-05-03  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h (U): New define, to correct type of string constants.
        (ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr): New wrapper
        routines, to do casts when passing unsigned strings to libc.
        * cppexp.c, cppfiles.c, cpphash.c, cppinit.c, cpplib.c: Use them.

        * cppfiles.c (_cpp_execute_include): Make filename an U_CHAR *.
        * cpphash.c (_cpp_quote_string): Make string an U_CHAR *.
        * cppinit.c (dump_special_to_buffer): Make macro name an U_CHAR *.
        * cpplex.c (parse_ifdef, parse_include, validate_else): Make
        second argument an U_CHAR *.

        * cppinit.c (builtin_array): Make name and value U_CHAR *, add
        length field, clean up initializer.
        (ISTABLE): Add __extension__ to designated-
        initializers version.
        * cpplex.c (CHARTAB): Likewise.

        * mbchar.c: Add dummy external declaration to the !MULTIBYTE_CHARS
        case so the file won't be empty.

Wed May  3 21:01:46 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (struct reorder_block_def): Member succ removed.
        (REORDER_BLOCK_SUCC): Removed.
        (enum reorder_skip_type): Removed.
        (skip_insns_between_block): Renamed to skip_insns_after_block.
        Removed second argument. Removed dead code and cleaned up.
        (make_reorder_chain): Removed use of REORDER_BLOCK_SUCC.
        (reorder_basic_blocks): Remove use of REORDER_SKIP_AFTER. Removed
        second parameter to skip_insns_after_block.

Wed May  3 13:29:54 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.c (staticp, case LABEL_DECL): New case.

2000-05-03  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (start.encap): Do not depend on LIBGCC1.

        * mklibgcc1.in: Fix typo last change.

2000-05-03  Jason Merrill  <jason@casey.cygnus.com>

        * Makefile.in (WARN_CFLAGS): Add -pedantic -Wno-long-long.
        (LOOSE_CFLAGS): New: CFLAGS without -pedantic and -Wtraditional.
        (GCC_CFLAGS): Use it.
        (LANG_FLAGS_TO_PASS): New: SUBDIR_FLAGS_TO_PASS with LOOSE_CFLAGS.
        * cp/Make-lang.in, java/Make-lang.in, f/Make-lang.in, ch/Make-lang.in,
        objc/Make-lang.in: Use it.

2000-05-03  Jason R Thorpe  <thorpej@zembu.com>

        * config/i386/i386.md (lshrqi2_cmpno): Use q not r in constraint.

2000-05-03  Richard Henderson  <rth@cygnus.com>

        * mklibgcc.in: Restrict OLDCC=GCC test to native.  Equate
        LIBGCC1 empty with libgcc1.null.

Wed May  3 12:55:46 2000  Jim Wilson  <wilson@cygnus.com>

        * fold-const.c (extract_muldiv, case MAX_EXPR): Don't allow signedness
        change.

2000-05-03  Greg McGary  <gkm@gnu.org>

        * tree.h (tree_common): Add bounded_flag member.  Remove
        inaccurate comment about number of remaining bits.
        (BOUNDED_INDIRECT_TYPE_P, BOUNDED_POINTER_TYPE_P,
        BOUNDED_REFERENCE_TYPE_P, MAYBE_BOUNDED_INDIRECT_TYPE_P,
        MAYBE_BOUNDED_POINTER_TYPE_P, MAYBE_BOUNDED_REFERENCE_TYPE_P,
        TREE_BOUNDED, TYPE_MAIN_VARIANTS_PHYSICALLY_EQUAL_P,
        TYPE_MAIN_PHYSICAL_VARIANT, TYPE_BOUNDED): New macros.
        (TYPE_QUAL_BOUNDED): New constant.
        (TYPE_QUALS): Handle bounded qualifier.
        (TREE_EXPR_QUALS, TREE_FUNC_QUALS): New macros.
        (TYPE_BOUNDED_VALUE, TYPE_BOUNDED_BASE, TYPE_BOUNDED_EXTENT,
        TYPE_BOUNDED_SUBTYPE, TYPE_UNBOUNDED_VARIANT, TYPE_POINTER_DEPTH,
        TYPE_AMBIENT_BOUNDEDNESS): New macros.
        (MAX_POINTER_DEPTH, VA_LIST_POINTER_DEPTH): New constants.
        (tree_type): Add pointer_depth member.  Remove
        inaccurate comment about number of remaining bits.
        (DECL_POINTER_DEPTH): Add macro.
        (tree_decl): Add pointer_depth member.

Wed May  3 22:52:53 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.h (test_hard_reg_class): Declared.
        * config/avr/avr.c (ashrhi3_out): optimized shift by 15.
        (lshrhi3_out): Likewise.
        (ashrsi3_out): bugfix in shift by 8.
        (test_hard_reg_class): New function.
        * config/avr/avr.md: Bugfix inside conditions in peepholes.
        (ashlhi3): removed define_expand of this pattern.
        (*ashlhi3_insn): renamed to ashlhi3.
        (ashlsi3): removed define_expand of this pattern.
        (*ashlsi3_insn): renamed to ashlsi3.
        (ashrqi3): removed define_expand of this pattern.
        (*ashrqi3_insn): renamed to ashrqi3.
        (ashrhi3): removed define_expand of this pattern.
        (*ashrhi3_insn): renamed to ashrhi3.
        (ashrsi3): removed define_expand of this pattern.
        (*ashrsi3_insn): renamed to ashrsi3.
        (lshrhi3): removed define_expand of this pattern.
        (*lshrhi3_insn): renamed to lshrhi3.
        (lshrsi3): removed define_expand of this pattern.
        (*lshrsi3_insn): renamed to lshrsi3.

2000-05-03  Rodney Brown  <RodneyBrown@pmsc.com>

        * config/mcore/mcore.c: Replacing inclusion of "stdio,h" with
        inclusion of "system.h".

Wed May  3 11:43:53 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (ia64_encode_section_info): Add check for
        TREE_ASM_WRITTEN.

2000-05-03  David Mosberger  <davidm@hpl.hp.com>

        * config/ia64/ia64.c (ia64_override_options): Force -mconstant-gp
        if -mauto-pic is on.
        (ia64_epilogue_uses): Mark "gp" (r1) as used by the epilogue if
        -mconstant-gp is in effect and function-descriptors are being used
        to make indirect calls.
        * config/ia64/ia64.h (MASK_CONST_GP): New macro.
        (MASK_AUTO_PIC): Ditto.
        (TARGET_CONST_GP): Ditto.
        (TARGET_AUTO_PIC): Ditto.
        (TARGET_SWITCHES): Add -mconstant-gp and -mauto-pic options.
        (ASM_OUTPUT_DOUBLE_INT): Don't generate @fptr() if -mauto-pic or
        -mno-pic is in effect.
        (ASM_OUTPUT_XDATA_DOUBLE_INT): Ditto.
        * config/ia64/ia64.md (movdi): Use gen_load_gprel64() if
        -mauto-pic is in effect.
        (gprel64_offset): New pattern.
        (load_gprel64): Ditto.
        (call): Handle -mauto-pic like -mno-pic (don't use fptr).  If
        -mconstant-gp is in effect, no need to preserve gp around direct
        calls.
        (call_value): Ditto.
        * config/ia64/linux.h (PROFILE_BEFORE_PROLOGUE): Define.
        (FUNCTION_PROFILER): Define.
        * config/ia64/sysv4.h (ASM_OUTPUT_CONSTRUCTOR): Don't generate
        @fptr() directive when -mno-pic or -mauto-pic is in effect.
        (ASM_OUTPUT_DESTRUCTOR): Ditto.

2000-05-03  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (STAGESTUFF): Add libgcc libgcc.mk.
        (libgcc1.null, libgcc1.cross, libgcc1.a): Remove targets.
        (libgcc1-asm.a, libgcc1.S, libgcc2.a): Remove targets.
        (mklibgcc, libgcc.mk): New targets.
        (libgcc.a): Use libgcc.mk.
        (stmp-multilib): Likewise.
        (stmp-multilib-sub): Remove.
        (mostlyclean): Don't delete libgcc2 temp files.
        * configure.in (AC_PROG_CC_C_O): Add.
        (NO_MINUS_C_MINUS_O): Substitute it.
        (all_outputs): Add mklibgcc.
        * mklibgcc.in: New file.

2000-05-03  Jason Merrill  <jason@casey.cygnus.com>

        * cppexp.c (op_t): Make an int.

        * rtlanal.c (dead_or_set_regno_p): Remove unused variable.

        * varasm.c (initializer_constant_valid_p): Fix parenthesis.

        * gensupport.c (process_rtx): Fix macros used.

2000-05-03  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_one_insn): Also don't PROP_REG_INFO for
        call-clobbered registers of a call.

Wed May  3 12:40:53 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * gensupport.c: New file.
        * gensupport.h: New file.
        * Makefile.in (HOST_RTL): Depend on gensupport.
        (gensupport.o) New rule.
        * genattr.c: Use gensupport for reading .md files.
        * genattrtab.c: Ditto. 
        * gencodes.c: Ditto. 
        * genconfig.c: Ditto. 
        * genemit.c: Ditto. 
        * genextract.c: Ditto. 
        * genflags.c: Ditto. 
        * genopinit.c: Ditto. 
        * genoutput.c: Ditto. 
        * genpeep.c: Ditto. 
        * genrecog.c: Ditto.
        * rtl.def (define_insn_and_split): New DEF_RTL_EXPR.
        * md.texi (Insn Splitting): Document define_insn_and_split.

Tue May  2 00:20:30 2000  Jason Eckhardt  <jle@cygnus.com>

        * flow.c (verify_flow_info): Added two more sanity checks. The
        first checks that the blocks are numbered consecutively. The second
        checks that n_basic_blocks is actually equal to the number of
        basic blocks in the insn chain.

2000-05-03  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h: Add accessor macros for token lists.
        * cpplib.c, cpphash.c, cpplex.c: Use them.

Wed May  3 09:29:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (expand_expr, case COMPONENT_REF): Don't check for checking
        memory usage if not in a function.
        * varasm.c (initializer_constant_valid_p, case ADDR_EXPR): Only
        return address if static.

Wed May  3 13:14:49 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * ifcvt.c (noce_try_cmove_arith):  Use may_trap_p to thest
        whether address may trap.

Tue May  2 23:38:37 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder (chain_reorder_blocks): Changed code to test for
        EDGE_FALLTHRU rather than making erroneous assumption that the
        first outgoing edge is the fall-through edge.

Tue May  2 18:20:31 2000  Donald Lindsay  <dlindsay@hound.cygnus.com>

        * config/mips/mips.c (mips_build_va_list,mips_va_start,mips_va_arg): new 
        ABI for varargs, across all MIPS. This is incompatible because the
        va_list (__builtin_va_list) structure is different, so a compilation
        unit passing a va_list and a compilation unit being passed one, should
        both be compiled with the same ABI. (The old structure had two 
        pointers, now it has three.)

Tue May  2 19:18:43 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (struct reorder_block_def): Remove members end,
        block_begin, and block_end.
        (REORDER_BLOCK_OLD_END): Delete.
        (REORDER_BLOCK_BEGIN): Delete.
        (REORDER_BLOCK_END): Delete.
        (chain_reorder_blocks): Remove dead code.

Tue May  2 17:06:53 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (remove_scope_notes): Check for both types of scope
        notes as the end of a basic block before deleting.

2000-05-02  Mumit Khan  <khan@xraylith.wisc.edu>

        * final.c (final_start_function): Fix spelling of "necessary".

2000-05-02  Jason Merrill  <jason@casey.cygnus.com>

        * toplev.c (debug_ignore_block): Return int.
        * dwarf2out.c (dwarf2out_ignore_block): Likewise.
        * toplev.h, dwarf2out.h: Adjust.
        * emit-rtl.c (remove_unnecessary_notes): Test return value.

        * emit-rtl.c (remove_unnecessary_notes): Fix spelling of "necessary".
        * toplev.c, final.c, rtl.h: Adjust.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

        * aclocal.m4 (gcc_AC_CHECK_PROG_VER): New macro.
        * configure.in: Look for makeinfo in the unified tree, then
        for a system makeinfo which is sufficiently new.
        * Makefile.in: If configure says makeinfo is too old, don't
        build or install Info documentation.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (collect_params): Fix off-by-one error.
        (dump_hash_helper): Dump all four macro nodetypes.

2000-05-02  Jakub Jelinek  <jakub@redhat.com>

        * cpphash.c (trad_stringify): Adjust p after stringification as
        well.

2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (CPP_POP, parse_cleanup_t): Delete.
        (cpp_buffer): Remove cleanup, seen_eof, manual_pop members.

        * cppfiles.c (file_cleanup): Delete.
        * cpphash.c (macro_cleanup): Delete.
        (collect_objlike_expansion, collect_funlike_expansion,
        macarg, scan_arguments): Remove CPP_POP case.

        * cpplex.c (null_cleanup): Delete.
        (cpp_pop_buffer): Do the work that was done in the cleanups
        here.  Call _cpp_unwind_if_stack from here.
        (_cpp_expand_to_buffer, cpp_scan_buffer_nooutput,
        cpp_scan_buffer): Run until we see CPP_EOF and the top of
        stack is the buffer _below_ the one we stacked.
        (cpp_get_token): Always pop an exhausted buffer.  Return
        CPP_EOF unless it's a macro buffer.  Don't call _cpp_handle_eof.
        * cpplib.c (skip_if_group): Don't call cpp_get_token to
        increment the line number.
        (_cpp_handle_eof): Rename to _cpp_unwind_if_stack.

        * fix-header.c (read_scan_file) [parsing getchar()]: Run until
        we see CPP_EOF and the top of stack is the buffer _below_ the
        one we stacked.
        * scan-decls.c: Likewise.

2000-05-02  Andrew Haley  <aph@cygnus.com>

        * config/ia64/ia64.c (ia64_encode_section_info): Handle the case
        where this function is called for the second time on a decl that
        has had its section info changed in such a way as to move it out
        of small data/bss.  
        * config/ia64/ia64.h (REDO_SECTION_INFO_P): New definition.

2000-05-01  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (dead_or_predicable): Set merge_bb->end to the insn before
        the sequence we're moving, not to merge_bb->head.

2000-05-01  Richard Henderson  <rth@cygnus.com>

        * configure.in (alpha*-*-linux-gnulibc1*) [tmake_file]: Remove
        reference to alpha/t-linux.
        (alpha*-*-linux-gnu*): Likewise.
        * configure: Rebuild.

        * calls.c (expand_call): Don't emit reg notes for a sibcall.

        * flow.c (calculate_global_regs_live): Skip for_each_successor_phi
        if not in SSA form.

        * ifcvt.c (if_convert): Only verify_flow_info if ENABLE_CHECKING.

2000-05-01  Jason Merrill  <jason@casey.cygnus.com>

        * integrate.c (copy_decl_for_inlining): Copy TREE_READONLY and
        TREE_THIS_VOLATILE.

2000-05-01  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (noce_emit_cmove): Conditionally compile call to
        emit_conditional_move.

2000-05-01  Jakub Jelinek  <jakub@redhat.com>

        * config/ia64/linux.h (LINK_SPEC): Use /lib/ld-linux-ia64.so.1
        as the dynamic linker.

2000-05-01  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (open_include_file): Open file in blocking mode.
        (read_include_file): Don't fcntl(fd, F_SETFL, 0) anymore.
        Only exclude block devices and directories.

        * cpphash.c (_cpp_make_hashnode): Rename make_HASHNODE, now
        static.  Allocate the hashnode and its string in the same
        block of memory.
        (del_HASHNODE): Don't free h->name.
        (_cpp_lookup): If there is no entry for this string, create
        one, of type T_VOID.
        (_cpp_lookup_slot): Delete.
        * cpphash.h: Update prototypes.

        * cpplex.c (maybe_macroexpand): Check for hp->type == T_VOID,
        not hp == NULL.
        * cpplib.c (do_define, do_undef, do_pragma_poison, do_assert,
        do_unassert, cpp_defined): Use _cpp_lookup.  Don't create a
        node here, just fill in the value field properly.  "Delete"
        entries by setting the value field to T_VOID.  Check for
        hp->type == T_VOID, not hp == NULL.

        * Makefile.in (cpplib.o): Don't depend on $(HASHTAB_H).
        * cpperror.c, cppexp.c, cpplex.c, cpplib.c:  Don't include
        hashtab.h.

2000-05-01  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.c (print_operand_address): Do not add
        zero to SP.

        * config/mn10300/mn10300.c (expand_epilogue): If SP is to be
        adjusted by less than 256 bytes, use ret regardless of having any
        callee-saved register to restore.

2000-05-01 Laurynas Biveinis <lauras@softhome.net>

        * tm.texi (TARGET_HAS_F_SETFLKW): Fix typo.

2000-05-01 Mark Elbrecht <snowball3@bigfoot.com>

        * config/i386/djgpp.h (INT_ASM_OP): Define.
        (CPP_PREDEFINES): Rename MSDOS to __MSDOS__.
        (ASM_WEAKEN_LABEL): Define.
        (MASK_BNU210): Define.
        (SUBTARGET_SWITCHES): Define.
        (SUPPORTS_WEAK, SUPPORTS_ONE_ONLY): Define.
        (MAKE_DECL_ONE_ONLY): Define.
        (UNIQUE_SECTION_P, UNIQUE_SECTION): Define.

2000-05-01  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin.h (INT_ASM_OP): Define.

Mon May  1 18:20:06 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (address_cost): renamed to avr_address_cost.
        * config/avr/avr.h (ADDRESS_COST): use avr_address_cost.

Mon May  1 17:50:44 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (asm_file_start): output 0 as r0 and 1 as r1 in
        __tmp_reg__ and __zero_reg__ initialization.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_one_insn): Mark sets even when the insn is dead.

        * ifcvt.c (noce_process_if_block): Fail the conversion if X is
        referenced bewteen the condition and the jump.  Don't delete
        anything but the jump.

Sun Apr 30 22:48:24 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (scope_def): New struct.
        (scope_forest_info): New struct.
        (struct reorder_block_def): New member "scope".
        (REORDER_BLOCK_SCOPE): New macro.
        (relate_bbs_with_scopes): New function and prototype.
        (make_new_scope): Likewise.
        (build_scope_forest): Likewise.
        (remove_scope_notes): Likewise.
        (insert_intra_1): Likewise.
        (insert_intra_bb_scope_notes): Likewise.
        (insert_inter_bb_scope_notes): Likewise.
        (rebuild_scope_notes): Likewise.
        (free_scope_forest_1): Likewise.
        (free_scope_forest): Likewise.
        (dump_scope_forest): Likewise.
        (dump_scope_forest_1): Likewise.
        (chain_reorder_blocks): Set REORDER_BLOCK_SCOPE for new block.
        Update REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END for new
        block.
        (reorder_basic_blocks): Added calls to build_scope_scope_forest
        and remove_scope_notes before reordering is done. Added calls to
        rebuild_scope_notes, free_scope_forest, and reorder_blocks after
        after reordering is done.

2000-40-30  Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def:  Added definitions needed by OSR5,
        removed two stale entries (defined away with OLD_CPP).
        * fixinc/inclhack.sh: regen
        * fixinc/fixincl.x: regen

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c (dead_or_predicable): Manually squeeze non-movable notes
        from the last insn in the sequence.

2000-04-30  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (cpp_idcmp): New function.
        * cpplib.h: Prototype it.
        * scan_decls.c (scan_decls): Use it to inspect token names.
        * fix-header.c (read_scan_file): Likewise.  Set system_header_p on
        the file being run through the preprocessor.
        (check_macro_names): Provide length of token to cpp_defined.

        * Makefile.in: Remove stale warning message.

        * cppfiles.c (redundant_include_p): Provide length of token to
        cpp_defined.
        * cpphash.c (_cpp_make_hashnode, _cpp_lookup_slot): Hash
        values are unsigned int.
        (_cpp_lookup, _cpp_lookup_slot): Do not calculate the length.
        (_cpp_lookup_slot): Do not calculate the hash, either.
        * cpphash.h: Update prototypes.
        * cpplib.c (do_define, do_undef, do_pragma_poison, do_assert):
        Hashes are unsigned int.  Calculate hash here, pass by value
        to _cpp_lookup_slot.

2000-04-30  Bernd Schmidt  <bernds@cygnus.co.uk>

        * simplify-rtx.c (check_value_useless): Delete function.
        (discard_useless_locs): Don't call it; manage N_USELES_VALUES counter
        by hand.
        (cselib_invalidate_regno): Likewise.
        (cselib_invalidate_mem_1): Likewise.
        (references_value_p): Recognize useless values by the fact that they
        have no locations.
        (discard_useless_values): Likewise.
        (cselib_record_set): This may turn a useless value
        into a useful one.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * config/d30v: New port.

        * configure.in (d30v-*): Set fp format.
        * configure: Rebuild.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * ifcvt.c: New file.
        * Makefile.in (OBJS): Add it.
        (ifcvt.o): New target.
        * jump.c (jump_optimize_1): Remove all code related to if-conversion,
        and conditional arithmetic.
        (find_insert_position): Remove.
        * timevar.def (TV_IFCVT, TV_IFCVT2): New.
        * toplev.c (DFI_ce, DFI_ce2): New.
        (dump_file): Add ce and ce2 dumps.
        (rest_of_compilation): Run if_convert a couple o times.  Set
        cse_not_expected after cse2.  Don't set no_new_pseudos until
        after sched1 or recompute_reg_usage.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * config/alpha/t-crtbe (crtbegin.o): Add "-I.".
        (crtend.o, crtbeginS.o, crtendS.o): Likewise.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * flow.c (struct reg_cond_life_info): New.
        (struct propagate_block_info): Add reg_cond_dead and reg_cond_reg.
        (init_propagate_block_info): Initialize them.
        (free_propagate_block_info): Destruct them.
        (mark_set_1): Consider conditional life before killing a register.
        (mark_regno_cond_dead): New.
        (free_reg_cond_life_info): New.
        (flush_reg_cond_reg_1, flush_reg_cond_reg): New.
        (ior_reg_cond, not_reg_cond, nand_reg_cond): New.
        (mark_used_reg): Record conditional life.

        * haifa-sched.c (schedule_insns): Disable death counting
        sanity check for HAVE_conditional_execution.

2000-04-30  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (TIMEVAR_H): New.
        (ggc-simple.o, ggc-page.o, toplev.o, timevar.o): Use it.
        (timevar.h): Remove rule.

2000-04-29  Richard Henderson  <rth@cygnus.com>

        * config/alpha/crtend.asm: Use C comments instead of #.
        * config/alpha/crtbegin.asm: Likewise.  Mark __dso_handle hidden.

        * config/alpha/elf.h (SELECT_SECTION): Treat CONSTRUCTOR like VAR_DECL.

2000-04-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h (enum node_type: Take out T_MCONST.
        (union hashval): Move into struct hashnode.
        (struct hashnode): Pack tighter.  Remove file, line, col
        members.
        * cpphash.c: Constify most of the macro-definition structures.
        (struct definition): Replace by struct object_defn
        and struct funct_defn.  Put file, line, column information
        here.  All users updated to match.
        (_cpp_create_definition, _cpp_macroexpand): Remove special
        case for #define WORD OTHERWORD.
        * cpplib.c (do_undef): Remove T_MCONST case.

        * cpphash.h: Move struct reflist, struct definition, and the
        DEFINITION typedef to cpphash.c.  Use 'struct definition *' in
        union hashval.  _cpp_free_definition takes a HASHNODE pointer.
        * cpphash.c (_cpp_free_definition): Free data pointed to by
        MCONST, XCONST, MACRO, and FMACRO nodes properly.
        (_cpp_create_definition, del_HASHNODE): Just call
        _cpp_free_definition to clear out a hashnode.
        * cpplib.c (do_pragma_poison): Likewise.

Sat Apr 29 12:25:17 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (FIRST_DATA_REGNUM,
        LAST_DATA_REGNUM, FIRST_ADDRESS_REGNUM, LAST_ADDRESS_REGNUM,
        FIRST_EXTENDED_REGNUM, LAST_EXTENDED_REGNUM): New macros.
        (REGNO_SP_P): Redefine in terms of STACK_POINTER_REGNUM.
        (REGNO_DATA_P, REGNO_ADDRESS_P, REGNO_EXTENDED_P,
        REGNO_AM33_P): Redefine in terms of the new macros.
        (CONDITIONAL_REGISTER_USAGE, REGNO_REG_CLASS): Likewise.
        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
        STRUCT_VALUE): Likewise.
        (STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
        ARG_POINTER_REGNUM, STATIC_CHAIN_REGNUM): Likewise.  Moved.

Sat Apr 29 01:18:45 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * regmove.c (struct record_stack_memrefs_data): New.
        (record_stack_memrefs): New function.
        (combine_stack_adjustments_for_block): Use it.

Sat Apr 29 01:15:27 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (calls_function_1):  Propertly handle TREE_LIST expressions;
        use special_function_p to detect alloca.

Fri Apr 28 16:30:33 2000  Marc Espie <espie@cvs.openbsd.org>

        * gcc.texi: Fixes for makeinfo 4.0 --html.

2000-04-28  Zack Weinberg  <zack@wolery.cumb.org>

        * pcp.h: Delete file.

2000-04-28  Kazu Hirata  <kazu@hxi.com>

        * h8300.c (function_epilogue): Clean up flags when the last insn
        in a function is a barrier.

2000-04-28  Chris Demetriou  <cgd@sibyte.com>

        * configure.in (sparc-hal-solaris2*): protect [] glob from
        my expansion.
        (mips*-*-ecoff*, mips*-*-elf*, mips*-*-*): use MASK_ defines
        rather than hard-coded constants in target_cpu_default2.
        * configure: Regenerate.

2000-04-28  Jason Merrill  <jason@casey.cygnus.com>

        * tree.c (get_callee_fndecl): Extract the initial value from
        a readonly decl.

2000-04-28  Richard Henderson  <rth@cygnus.com>

        * varasm.c (record_constant_1): Record the CODE_LABEL when
        taking the address of a LABEL_REF.

2000-04-28  Richard Henderson  <rth@cygnus.com>
            Jan Hubicka  <jh@suse.cz>

        * calls.c (combine_pending_stack_adjustment_and_call): Return the
        adjustment; don't do the stack adjust.
        (expand_call): Call compute_argument_block_size right before
        allocating the block; update comment; don't do alignment sanity
        checking for sibling call; use args_size instead of
        unadjusted_args_size before args_size is adjusted.  Use
        combine_pending_stack_adjustment_and_call to compute stack adjust
        for must_preallocate case.

        * expr.c (push_block): Remove shadow `temp' in inner scope.

2000-04-28  Jason Merrill  <jason@casey.cygnus.com>

        * toplev.c (rest_of_compilation): Call
        note_deferral_of_defined_inline_function even if the function
        can't be inlined.

2000-04-28  Scott Bambrough  <scottb@netwinder.org>

        * cpplex.c (_cpp_scan_line): Fix buffer overwrite.

2000-04-28  Richard Henderson  <rth@cygnus.com>

        * toplev.c (rest_of_type_compilation): Fix sdb TIMEVAR typo.

2000-04-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * timevar.c (init_timevar): DeANSIfy function definition.

2000-04-27  Alex Samuel  <samuel@codesourcery.com>

        * Makefile.in (timevar.o): Depend on flags.h.
        * timevar.c (unused_stack_instances): New variable.
        (timevar_push): Take a timevar_stack_def from
        unused_stack_instances if available.
        (timevar_pop): Push the popped timevar_stack_def onto
        unused_stack_instances.
        (TIMEVAR_ENABLE): New macro.
        (timevar_def): Make standalone a 1-bit field.  Add field used.
        (get_time): Rename parameter to now.  Return after clearing it if
        not TIMEVAR_ENABLE.
        (init_timevar): Do nothing if not TIMEVAR_ENABLE.
        (timevar_pop): Likewise.
        (timevar_stop): Likewise.
        (timevar_push): Likewise.  Mark the timing variable as used.
        (timevar_start): Likewise.
        (timevar_print): Do nothing if not TIMEVAR_ENABLE.  Don't print
        timevars that were never used.

2000-04-27  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (c_apply_type_quals_to_decl): REFERENCE_TYPES are
        always TREE_READONLY.

2000-04-27  Ulrich Drepper  <drepper@cygnus.com>

        * i386.h (FUNCTION_BLOCK_PROFILER_EXIT): Generate mem reference
        for call instruction with mode QImode.

2000-04-27  Alex Samuel  <samuel@codesourcery.com>

        * Makefile.in (OBJS): Add timevar.o.
        (toplev.o): Depend on timevar.h.
        (ggc-simple.o): Likewise.
        (ggc-page.o): Likewise.
        (timevar.o): New rule.
        (timevar.h): New rule.

        * timevar.h: New file.
        * timevar.c: Likewise.
        * timevar.def: Likewise.

        * toplev.h (gc_time, parse_time, varconst_time): Remove.
        * toplev.c: Use timevar_push and timevar_pop instead of TIMEVAR
        throughout.
        (TIMEVAR): Remove macro.
        (gc_time, parse_time, varconst_time, integration_time, jump_time,
        cse_time, gcse_time, loop_time, cse2_time, branch_prob_time,
        flow_time, combine_time, regmove_time, sched_time,
        local_alloc_time, global_alloc_time, flow2_time, peephole2_time,
        sched2_time, dbr_sched_time, reorder_blocks_time,
        rename_registers_time, shorten_branch_time, stack_reg_time,
        to_ssa_time, from_ssa_time, final_time, symout_time, dump_time,
        all_time): Remove.
        (compile_file): Don't initialize time variables.  Call
        init_timevar and start TV_TOTAL timer.  Call timevar_print instead
        of many calls to print_time.
        (rest_of_compilation): Add timing for reload_cse_regs.
        (get_run_time): Removed to timevar.c.
        (print_time): Likewise.
        (get_run_time): Implement using TV_TOTAL time variable.
        (print_time): Get total run time from get_run_time.
        * ggc-page.c (ggc_collect): Push and pop TV_GC instead of
        computing elapsed time explicitly.
        * ggc-simple.c (ggc_collect): Likewise.
        (gc_time): Remove declaration.

2000-04-27  Mark Mitchell  <mark@codesourcery.com>

        * calls.c (combine_pending_stack_adjustment_and_call): New function.
        (expand_call): Use it.

2000-04-27  Jan Hubicka  <jh@suse.cz>

        * flow.c (mark_set_1):  Handle MEMs in ZERO_EXTRACT/SIGN_EXTRACT
        fields.

Thu Apr 27 12:47:00 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.md (movhi): Simplify.  Prefer data
        registers.

Thu Apr 27 17:33:05 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * function.c (epilogue_done): Pass whole insn to record_insns.

Thu Apr 27 16:55:28 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * cse.c (CSE_ADDRESS_COST): Remove.
        (find_best_addr): Add new parameter "MODE", use address_cost instead
        of CSE_ADDRESS_COST
        (address_cost): New.
        (fold_rtx): Update call of find_best_addr.
        * rtl.h (address_cost): Declare.
        * loop.c (general_induction_var): Add new parameter "MODE", use
        address_cost instead of ADDRESS_COST
        (init_loop): Use address_cost instead of ADDRESS_COST.
        (check_insn_for_givs): Update call of general_induction_var.
        (find_mem_givs): Likewise.
        (consec_sets_giv): Likewise.
        * config/i386/i386.h (ADDRESS_COST): Call ix86_address_cost.
        * i386.c (ix86_address_cost): New.
        * i386-protos.h (ix86_address_cost): Declare.

Thu Apr 27 11:45:16 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.md (movqi): Simplify.  Prefer data
        registers.

Thu Apr 27 16:11:00 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * expr.c (store_expr): Use clear_storage instead of direct memset
        libcall.

Thu Apr 27 10:36:51 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.c (mn10300_address_cost): Test
        ASHIFT, AND and LABEL_REF.

Thu Apr 27 15:08:46 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * invoke.texi (-foptimize-sibling-calls): Fix.

Thu Apr 27 14:54:22 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (load_mems)  Don't use hard registers for the hoisting.

        * unroll.c (unroll_loop): Avoid overflow in the n_iterations
        calculation; rename const_equiv array in the preconditioning code
        from loop_unroll to loop_unroll_precondition

2000-04-27  Richard Henderson  <rth@cygnus.com>

        * flow.c (struct propagate_block_info): Remove new_dead, new_live;
        add new_set.
        (propagate_one_insn): Clear it.  Don't update reg_live here.
        (init_propagate_block_info): Update for pbi member changes.
        (free_propagate_block_info): Likewise.
        (mark_set_1): Know that zero_extract, sign_extract, and
        strict_low_part don't kill their argument.  Alter hard subregs.
        Update new_set for non-CLOBBER sets.  Update reg_live.
        (find_auto_inc): Update reg_live, not new_dead.
        (mark_used_reg): Update reg_live, not new_live.  Examine new_set
        to determine if the reg in question was set this insn.  Only update
        reg info with PROP_REG_INFO.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (allocate_reg_life_data): Set max_regno here ...
        (life_analysis): ... not here.

        * flow.c (calculate_global_regs_live): Force stack pointer
        live at end.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * jump.c (redirect_exp_1): Rework from old redirect_exp.  Never
        commit change group changes.
        (invert_exp_1): Similarly.
        (redirect_exp, invert_exp): Use them.
        (redirect_jump_1): New.
        (invert_jump_1): New.
        (jump_optimize_1): Remove code subsumed by condexec.c.
        * rtl.h (invert_jump_1, redirect_jump_1): Declare.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (dead_or_set_regno_p): Use find_regno_note.

        * genconfig.c (main): Set all HAVE_foo to 1.

        * graph.c (node_data): Use GET_NOTE_INSN_NAME instead of local array.

2000-04-26  Alex Samuel  <samuel@codesourcery.com>

        * invoke.texi: Document -fssa flag.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (count_reg_sets_1): Remove.
        (count_reg_sets, count_reg_references): Remove.
        (recompute_reg_usage): Implement with update_life_info.
        Reallocate life data.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (update_life_info): Consider blocks null to mean the
        universal set.
        (calculate_global_regs_live): Likewise.
        (life_analysis): Do that instead of collecting all_blocks.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (tidy_fallthru_edge): Don't delete the jump when it's
        a still-valid conditional jump.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * jump.c (invert_jump): Always invert REG_BR_PROB.  Do it correctly.

        * bb-reorder.c (reorder_basic_blocks): Don't run estimate_probability.
        * flow.c (calculate_loop_depth): Remove.
        * output.h (calculate_loop_depth): Don't declare.
        * toplev.c (rest_of_compilation): Expand calculate_loop_depth
        inline; run estimate_probability at the same time.

2000-04-26  Neil Booth  <NeilB@earthling.net>

        * cpplib.h: "~=" is not a single pp-token.
        * cpplex.c: Correct commentary.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_set_1): New arguments code and flags; update all
        callers.  Track regno_first and regno_last; do HARD_REGNO_NREGS
        test in one place.  Tidy flags tests.  Don't bias REG_N_REFS by
        loop_depth when optimizing for size.  Do new_dead update after
        emitting REG_UNUSED notes.  Merge mark_set_reg code.
        (mark_set_reg): Remove.
        (propagate_one_insn): Use mark_set_1 for call-clobbered registers;
        arrange to not emit REG_UNUSED notes.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_auto_inc): Use pbi->bb instead of BLOCK_FOR_INSN.
        * ssa.c (convert_from_ssa): Don't run compute_bb_for_insn.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_one_insn): Break out from propagate_block.
        (init_propagate_block_info): Likewise.
        (free_propagate_block_info): Likewise.
        (propagate_block): Use them.  Export.
        * basic-block.h: Declare them all.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (life_analysis): Declare here ...
        * output.h: ... not here.
        * flow.c (life_analysis): Remove nregs parameter; replace
        remove_dead_code with flags.  Remove ssa dead code check.
        Only init alias analysis if we'll use it.
        * reg-stack.c (reg_to_stack): Update life_analysis arguments.
        * ssa.c (convert_to_ssa): Likewise.
        (convert_from_ssa): Likewise.
        * toplev.c (rest_of_compilation): Likewise.

2000-04-26  Richard Henderson  <rth@cygnus.com>

        * flow.c (flow_delete_block): Rename from delete_block.  Export.
        * basic-block.h (flow_delete_block): Declare.

2000-04-26  David S. Miller  <davem@redhat.com>

        * optabs.c (emit_libcall_block): Verify insns with INSN_P before
        taking a PATTERN of it.

2000-04-26  <NeilB@earthling.net>

        * cpplex.c (spell_other, spell_char): Remove.
        (SPELL_CHAR): New.
        (token_spelling, trigraph_map): Use unsigned chars.
        (_cpp_lex_line): Tidy up the switch statement.
        * cpplib.h: Implement spell_char with spell_string.
        (C): New.

2000-04-26  <RodneyBrown@pmsc.com>

        * pa/pa32-regs.h (HARD_REGNO_MODE_OK): Warning removal.
        * pa/pa64-regs.h (HARD_REGNO_MODE_OK): Warning removal.

2000-04-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dwarf2out.c (dw_cfi_oprnd_struct, dw_fde_struct, add_fde_cfi,
        reg_save, dwarf2out_frame_debug_expr, dwarf2out_def_cfa,
        dwarf2out_window_save, dwarf2out_args_size, dwarf2out_reg_save,
        dwarf2out_return_save, dwarf2out_return_reg,
        dwarf2out_stack_adjust, dwarf2out_frame_debug, primary_filename,
        add_AT_lbl_id, add_AT_lbl_offset, type_tag, decl_start_label,
        gen_compile_unit_die, dwarf2out_init): Constify a char*.

        * dwarf2out.h (dwarf2out_init): Likewise.

        * dwarfout.c (filename_entry, primary_filename, last_filename,
        type_tag, output_compile_unit_die, dwarfout_init): Likewise.

        * tree.h (dwarf2out_def_cfa, dwarf2out_window_save,
        dwarf2out_args_size, dwarf2out_reg_save, dwarf2out_return_save,
        dwarf2out_return_reg): Likewise.

2000-04-26  Andreas Jaeger  <aj@suse.de>

        * extend.texi (Function Attributes): Fix description of pure
        attribute.

2000-04-26  Jason Merrill  <jason@casey.cygnus.com>

        * integrate.c (output_inline_function): Do clear DECL_DEFER_OUTPUT
        before calling rest_of_compilation.

2000-04-26  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h: Remove erroneous commit of #if 0/#endif in
        last patch.

2000-04-25  Richard Henderson  <rth@cygnus.com>

        * cse.c (cse_insn): Emit barrier after unconditional jump.

        * calls.c (expand_call): Disable tail call generation once
        rtx_equal_function_value_matters is false.

        * reg-stack.c (convert_regs_1): Treat EDGE_ABNORMAL_CALL edges
        like EDGE_EH edges.

2000-04-25  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_bound_info): Don't crash on an unexpanded SAVE_EXPR.

        * dwarfout.c (output_decl): Ignore NAMESPACE_DECLs.

        * dwarf2out.c (gen_subprogram_die): The class-scope declaration DIE
        is the primary DIE for a member function.
        (gen_decl_die): Call set_decl_origin_self here.
        * dwarfout.c (output_decl): And here.
        * integrate.c (output_inline_function): Not here.
        Don't clear DECL_INLINE until after calling rest_of_compilation.
        (set_decl_origin_self): No longer static.
        * tree.h: Add prototype.
        * toplev.c (note_deferral_of_defined_inline_function): Only write
        out abstract instance for actual inlines.

2000-04-25  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (REG_CLASS_FROM_LETTER): Return
        EXTENDED_REGS only if TARGET_AM33.
        * config/mn10300/mn10300.md (movsi, addsi): Avoid exposing
        SP_REGS to register allocation and reloading unless absolutely
        necessary.
        (movsi3): Remove special-case of adding non-constants to SP.

2000-04-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (gcc_AC_NEED_DECLARATION): This macro now requires
        INCLUDES to search and does not provide any of its own.  Also it
        now accepts optional ACTION-IF-NEEDED and ACTION-IF-NOT-NEEDED
        parameters.  Also it does not call AC_DEFINE.
        (gcc_AC_NEED_DECLARATIONS): Likewise.  Also this macro now calls
        AC_DEFINE and provides for automatic entries for autoheader.
        (gcc_AC_FUNC_PRINTF_PTR): Cleanup C code in test.

        * configure.in (gcc_AC_NEED_DECLARATIONS): Save and restore CFLAGS
        so we can pass -I flags and include gansidecl.h/system.h in this
        test.

        * acconfig.h: Delete all NEED_DECLARATION_* entries.

2000-04-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * acconfig.h (ENABLE_STD_NAMESPACE, ENABLE_CHECKING,
        ENABLE_TREE_CHECKING, ENABLE_RTL_CHECKING, ENABLE_GC_CHECKING,
        ENABLE_GC_ALWAYS_COLLECT): Delete entries.

        * configure.in (ENABLE_STD_NAMESPACE, ENABLE_CHECKING,
        ENABLE_TREE_CHECKING, ENABLE_RTL_CHECKING, ENABLE_GC_CHECKING,
        ENABLE_GC_ALWAYS_COLLECT): Use three argument form of AC_DEFINE
        for these macros.  Clean up spacing and linewraps.

2000-04-26  Jason Merrill  <jason@casey.cygnus.com>

        * calls.c (expand_call): Use get_callee_fndecl.

        * print-tree.c (print_node): Print the chain of an _EXPR.

Tue Apr 25 16:16:04 2000  Andrew MacLeod  <amacleod@cygnus.com>
                          Jim Wilson  <wilson@cygnus.com>
                          Andrew Haley  <aph@cygnus.com>

        * config/ia64/crtbegin.asm: Add IA-64 unwind support.  Correct alloc
        and gp save/restore problems.
        * config/ia64/crtend.asm: Add IA-64 unwind support.
        * config/ia64/ia64.c (ia64_compute_frame_size): Don't include pr_size
        in fr_pad_size calculation.
        (save_restore_insns): Move PR save area.  Correct uses of
        RTX_FRAME_RELATED_P.
        (ia64_expand_prologue): Mark alloc with RTX_FRAME_RELATED_P.
        (ia64_expand_epilogue): Add eh_epilogue support.
        (ia64_function_prologue): Emit .prologue directive.
        (ia64_init_machine_status, ia64_mark_machine_status): New functions.
        (ia64_override_options): Set init_machine_status and
        mark_machine_status.
        (rtx_needs_barrier): Handle bsp reads and writes.
        (spill_offset, sp_offset, spill_offset_emitted, tmp_reg, tmp_saved):
        New static variables.
        (process_set, process_for_unwind_directive): New functions.
        * config/ia64/ia64.h (ASM_OUTPUT_XDATA_CHAR, ASM_OUTPUT_XDATA_SHORT,
        ASM_OUTPUT_XDATA_INT, ASM_OUTPUT_XDATA_DOUBLE_INT, ASM_OUTPUT_EH_CHAR,
        ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT, ASM_OUTPUT_EH_DOUBLE_INT): New
        macros.
        (EH_FRAME_SECTION_ASM_OP): Define to IA_64.unwind section.
        (IA64_UNWIND_INFO, HANDLER_SECTION, IA64_UNWIND_EMIT): Define.
        (struct machine_function): Define.
        * config/ia64/ia64.md (bsp_value, set_bsp, eh_epilogue): New patterns.

2000-04-25  Bruce Korb  <bkorb@gnu.org>

        * fixinc/Makefile.in: make the removal of old programs more
        robust
        * fixinc/mkfixinc.sh: use the two new targets in the Makefile:
        install-bin and install-sh

2000-04-25  Nick Clifton  <nickc@cygnus.com>

        * integrate.c (FUNCTION_ATTRIBUTE_INLINABLE_P): If not
        defined, define to return zero.
        (function_cannot_inline_p): If a function has any target
        specific attributes, then use the macro
        FUNCTION_ATTRIBUTE_INLINABLE_P to allow the target to decide
        whether it can be inlined.  If it cannot, issue a suitable
        explanation.

        * tm.texi: Add a new node 'Inlining' to document the new macro
        FUNCTION_ATTRIBUTE_INLINABLE_P.

2000-04-25  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (struct cpp_buffer): Add 'mapped' flag; fix
        commentary.

2000-04-25  Neil Booth  <NeilB@earthling.net>

        Restore previous patch, plus the following fixes:

        * cpphash.c (_cpp_create_definition): Test PREV_WHITESPACE in
        flags, not CPP_OPEN_PAREN.
        * cpplex.c (expand_token_space, init_token_list,
        cpp_free_token_list): Put the dummy token at list->tokens[-1].
        (_cpp_lex_line, _cpp_lex_file): token list is 0-based.

Tue Apr 25 14:06:40 2000  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/i386/freebsd.h (INT_ASM_OP): Define.

Tue Apr 25 14:51:07 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (strength_reduce): Fix typo in the last checkin.

Tue Apr 25 07:33:12 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (finalize_record_size): Simplify to use existing
        functions.
        (compute_record_mode): No longer static.
        * tree.h (compute_record_mode): New declaration.

2000-04-25  Neil Booth  <NeilB@earthling.net>

        * Revert my patch below until cause of build failures
        determined.

2000-04-25  Richard Henderson  <rth@cygnus.com>

        * combine.c (combine_instructions): Add missing argument
        to try_combine.

        * toplev.c (rest_of_compilation): Delay sibcall optimization
        until after emit_eh_context.

2000-04-24  Nick Clifton  <nickc@redhat.com>

        * combine.c (combine_instructions): Do not try to combine a
        sequence of insns when the second insn has been replaced by a
        note.

Mon Apr 24 17:34:18 2000  Mumit Khan  <khan@xraylith.wisc.edu>

        * gcc.c (load_specs): New static function.
        (read_specs): Use it.

        * gcc.c (lookup_compiler): Make multiple passes for case
        insensitive filesystems.

2000-04-24  Neil Booth  <NeilB@earthling.net>

        * cpphash.c: replace HSPACE_BEFORE with PREV_WHITESPACE.
        * cpphash.h (_cpp_check_directive): new.
        * cpplex.c (handle_newline, cpp_free_token_list,
        init_trigraph_map, trigraph_ok, trigraph_replace,
        backslash_start, skip_block_comment, skip_line_comment,
        skip_whitespace, parse_name, parse_number, parse_string,
        copy_comment, _cpp_lex_line, spell_char, spell_string,
        spell_comment, spell_name, spell_other, _cpp_lex_file,
        _cpp_output_list): new.
        (expand_name_space): take length argument.
        (init_token_list): add comment list initialisation.
        (cpp_scan_line): use auto_expand_name_space.  PREV_WHITESPACE
        instead of HSPACE_BEFORE.

        * cpplib.c (_cpp_check_directive): new
        * cpplib.h (cpp_name, PREV_WHITESPACE, PREV_COMMENT,
        DIGRAPH, UNSIGNED_INT, TOK_NAME): new.
        (HSPACE_BEFORE): delete.
        (TTYPE_TABLE): rearrange.
        (struct cpp_toklist): update.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (gcc_AC_HEADER_STRING, gcc_AC_FUNC_PRINTF_PTR,
        gcc_AC_C_VOLATILE, gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG): Use the three
        argument form of AC_DEFINE.

        * configure.in (DEFAULT_LINKER, DEFAULT_ASSEMBLER,
        HAVE_INTTYPES_H, PACKAGE, VERSION, ENABLE_WIN32_REGISTRY,
        WIN32_REGISTRY_KEY, HAVE_GAS_SUBSECTION_ORDERING, HAVE_GAS_WEAK,
        HAVE_GAS_HIDDEN, HAVE_AS_REGISTER_PSEUDO_OP, AS_SPARC64_FLAG,
        HAVE_AS_OFFSETABLE_LO10, ENABLE_NEW_GXX_ABI): Likewise.

        * acconfig.h: Delete stubs made redundant by 3-arg AC_DEFINE.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (GCC_FOR_TARGET, GCC_CFLAGS, LIBGCC2_INCLUDES,
        deduced.h): Use -isystem, not -I, for including system headers.

2000-04-24  Nick Clifton  <nickc@cygnus.com>

        * config/fr30/fr30.md (addsi3): Do not use small add instruction if
        the source register is the frame pointer or arg pointer.
        (addsi3_small_int): Disallow if source register is the frame
        pointer or arg pointer.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (ENUM_BITFIELDS_ARE_UNSIGNED): Delete redundant
        call to AC_MSG_RESULT.

2000-04-24  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * invoke.texi: Correct grammatical errors, document
        -fno-gnu-keywords as identical to -fno-asm for C++.

2000-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4: (GCC_HEADER_STRING, GCC_NEED_DECLARATION,
        GCC_NEED_DECLARATIONS, GCC_FUNC_VFPRINTF_DOPRNT,
        GCC_FUNC_PRINTF_PTR, GCC_PROG_LN_S, GCC_PROG_LN, GCC_C_VOLATILE,
        AC_GCC_C_LONG_DOUBLE, GCC_FUNC_MKDIR_TAKES_ONE_ARG,
        EGCS_PROG_INSTALL): Rename autoconf macros with prefix gcc_AC_.

        * configure.in (AC_GCC_C_LONG_DOUBLE, GCC_PROG_LN, GCC_PROG_LN_S,
        GCC_C_VOLATILE, EGCS_PROG_INSTALL, GCC_HEADER_STRING,
        GCC_FUNC_VFPRINTF_DOPRNT, GCC_FUNC_PRINTF_PTR,
        GCC_NEED_DECLARATIONS, GCC_FUNC_MKDIR_TAKES_ONE_ARG): Invoke with
        new macros names.

2000-04-24  Mumit Khan  <khan@xraylith.wisc.edu>

        * c-pragma.c (push_alignment): Use BITS_PER_UNIT macro.
        (pop_alignment): Likewise.
        (handle_pragma_token): Likewise.

2000-04-24  Robert Lipe <robertlipe@usa.net>

        * tree.h (tree_decl): Member `mode' now ENUM_BITFIELD.

2000-04-24  Hiroyuki Machida <machida@sm.sony.co.jp>

        * combine.c (try_combine): Update reg_nonzero_bits of
        newi2pat before newpat.

Mon Apr 24 10:19:48 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (strength_reduce): Simplify test to INSN_P.
        (record_giv): Attempt to simplify the add value, use CONSTANT_P
        expressions instead of CONST_INT.
        (express_from_1): Likewise.

2000-04-24  Mark Mitchell  <mark@codesourcery.com>

        * regs.h (reg_n_max): Don't declare.
        * flow.c (reg_n_max): Don't define.
        * regclass.c (renumber): Don't initialize to zero.
        (regno_allocated): Likewise.
        (reg_n_max): Define.
        (allocate_reg_info): Don't initialize unnecessarily.

Mon Apr 24 00:21:36 2000  Jeffrey A Law  (law@cygnus.com)

        * genattrtab.c (find_attr): Initialize unsigned_p, func_units_p
        and blockage_p in the newly allocated attribute.

Sun Apr 23 20:16:49 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.md (addsi): `inc4' on address
        registers does not modify cc, but `inc' on an extended
        register does.

Sun Apr 23 16:24:35 2000  Denis Chertykov  <denisc@overta.ru>

        * reload.c (find_equiv_reg): Checks all valueno regs
        as a reload_reg_p regs.

2000-04-23  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (collect_objlike_expansion): Add sanity check.
        (special_symbol): Remove case T_CONST, T_XCONST, T_MCONST.  If
        the buffer is the empty string, return.  Mark __DATE__ and
        __TIME__ as XCONST nodes, not MCONST.
        (_cpp_macroexpand): Avoid pushing an empty buffer.
        (funlike_macroexpand): Don't pop token_buffer here.

Sun Apr 23 18:37:53 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (REGNO_IN_RANGE_P): New macro.
        (REGNO_DATA_P, REGNO_ADDRESS_P, REGNO_SP_P): New macros.
        (REGNO_EXTENDED_P, REGNO_AM33_P): New macros.
        (REGNO_OK_FOR_BASE_P): Define in terms of them.
        (REGNO_OK_FOR_BIT_BASE_P, REGNO_OK_FOR_INDEX_P): Likewise.
        (REG_OK_FOR_BASE_P): Define in terms of the REGNO macro.
        (REG_OK_FOR_BIT_BASE_P, REG_OK_FOR_INDEX_P): Likewise.

Sun Apr 23 22:23:08 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (simplify_giv_expr):  Be more agressive on simplifying
        constant MULT givs.

2000-04-23  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h (struct definition): Move file, line, col members...
        (struct hashnode): ... here.  Also add 'disabled' flag.
        (enum node_type): Add T_VOID, T_XCONST, T_FMACRO, and
        T_IDENTITY.  Remove T_DISABLED.
        Update prototypes.

        * cpphash.c (_cpp_dump_definition): Split out dump_DEFINITION.
        (collect_expansion): Split into collect_objlike_expansion and
        collect_funlike_expansion.
        (_cpp_macroexpand): Split out scan_arguments, stringify, and
        funlike_macroexpand.
        (_cpp_compare_defs): Rename compare_defs, make static.
        (_cpp_make_hashnode): Initialize hp->disabled.
        (macro_cleanup): Adjust for new token types.  Clear
        m->disabled.
        (_cpp_create_definition): Move code here to determine what
        sort of macro it is, and code to check for redefinitions, from
        do_define.  Implement a few simple cases without creating a
        full DEFINITION.
        (_cpp_macroexpand, special_symbol, _cpp_dump_definition):
        Handle the simple cases.
        (push_macro_expansion): Set buf->has_escapes and hp->disabled
        here.

        * cppinit.c (builtin_array): Change MCONST to XCONST
        everywhere.
        * cpplex.c (maybe_macroexpand): Handle IDENTITY macros here;
        fix check for disabled and function-like macros.
        * cpplib.c (do_define): Move most logic to
        _cpp_create_definition.
        (do_undef): Handle new special token types.

Sun Apr 23 14:27:44 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (maybe_eliminate_biv_1): Use GET_CODE (x) == CONST_INT instead
        of CONSTANT_P for mult_val; always use validate_change to update insn.

2000-04-22  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (trad_stringify, add_pat): New functions.
        (collect_expansion): Restore support for -traditional syntax.
        Use trad_stringify and add_pat.
        (_cpp_macroexpand): Restore support for -traditional semantics.
        * cpplex.c (_cpp_scan_line): Don't change space_before if we
        get a COMMENT token.
        (_cpp_lex_token): Provide COMMENT tokens to caller if
        traditional and parsing_define_directive.
        (skip_comment): Warn about // comments if -Wtraditional.
        * cpplib.c (do_define): Fix typo.  Create EMPTY nodes with
        proper node type.
        (do_undef): Don't warn about undefining EMPTY nodes.

Sat Apr 22 22:35:38 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (strength_reduce): Fix biv removal code.

2000-04-22  Richard Henderson  <rth@cygnus.com>

        * predict.c (estimate_probability): Examine both sides of
        a branch for no exits.  Use 90% not 50% for predict taken.
        Reorg for one copy of note generation code.

2000-04-22  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_used_reg): Hack around rs6000 eliminable pic reg.

2000-04-22  Richard Henderson  <rth@cygnus.com>

        * diagnostic.c (init_output_buffer): Don't initialize format_args.
        (output_clear): Likewise.
        (output_printf): Use va_copy.
        (vline_wrapper_message_with_location): Likewise.
        (v_message_with_decl): Likewise.
        (line_wrapper_printf): VA_START infor buffer.format_args directly.
        * system.h (va_copy): Provide default implementation.

2000-04-22  Richard Henderson  <rth@cygnus.com>

        * predict.c (expected_value_to_br_prob): Don't bomb if op1 of
        the collected condition is not a constant.

2000-04-22  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.h: New file.

        * Makefile.in (diagnostic.o): Depends on diagnostic.h

        * diagnostic.c: Tweak.  Rationalize the output logic.  Adjust
        various function prototypes.
        (diagnostic.h): #include.
        (struct output_buffer): Move into diagnostic.h.
        (get_output_prefix): Rename to output_get_prefix.  Export.
        (init_output_buffer): Export. Break out.  Ajust intialization.
        (output_space_left, output_append): Export.
        (output_newline): Rename to output_add_newline.  Export.
        (output_clear): Nullify additional output_buffer fields.
        (output_puts): Rename to output_add_string.  Export.
        (dump_output): Rename to output_flush_on.  Export.
        (build_location_prefix): Constify return-type.
        (emit_output_prefix): Rename to output_emit_prefix. Export.
        (set_real_maximum_length): New function.
        (output_set_maximum_length): Ditto
        (output_clear): Ditto.
        (output_add_character): Ditto.
        (output_add_integer): Ditto.
        (output_add_space): Ditto.
        (output_format): Ditto.
        (output_printf): Adjust buffer initialization.
        (vline_wrapper_message_with_location): Ditto.
        (v_message_with_decl): Ditto.  Adjust call to output_puts
        and get_output_prefix.
        (default_print_error_function): Adjust buffer intialization.

Sat Apr 22 06:45:04 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (preexpand_calls, case CALL_EXPR): Don't look at TYPE_SIZE
        of VOID_TYPE.

Fri Apr 21 18:33:09 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (REGNO_REG_CLASS): Use NO_REGS instead
        of explicit 0.

Fri Apr 21 18:30:00 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (REGISTER_MOVE_COST): Provide more
        accurate data about SP moves.

Fri Apr 21 18:28:28 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (ADDITIONAL_REGISTER_NAMES): Added
        aliases to AM33 registers.

Fri Apr 21 18:26:17 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.h (REG_CLASS_CONTENTS): Added register 16
        to all EXTENDED bitmaps.

Fri Apr 21 18:17:12 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300-protos.h (mn10300_address_cost): Declare.
        * config/mn10300/mn10300.h (ADDRESS_COST): New macro.
        * config/mn10300/mn10300.c (mn10300_address_cost): New function.

Fri Apr 21 18:11:56 2000  Alexandre Oliva  <aoliva@cygnus.com>

        * config/mn10300/mn10300.md (movdi, movdf): Do not use `movu' when
        the operand is not constant.

Fri Apr 21 14:58:29 2000  Denis Chertykov  <denisc@overta.ru>

        * reload.c (find_equiv_reg): Checks all valueno and regno regs
        as a call-clobbered regs.

Fri Apr 21 13:30:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rtl.c: Use NOTE_INSN_REPEATED_LINE_NUMBER and NOTE_INSN_RANGE_BEG.
        * rtl.h: Likewise.
        * rtl.def: Update comment.
        * function.c (expand_function): Use NOTE_INSN_REPEATED_LINE_NUMBER.
        * integrate.c (expand_inline_function): Likewise.
        * profile.c (branch_prob): Likewise.
        * ggc-common.c (ggc_mark_rtx_children): Use NOTE_INSN_RANGE_BEG.
        * print-rtl.c (print_rtx): Likewise.
        * haifa-sched.c (sched_analyze, unlink_other_notes): Likewise.
        (reemit_notes): Likewise; also use enum insn_note.

        * stor-layout.c (layout_decl): Only set DECL_MODE if not already set.
        (place_field): Properly compute know and actual alignment.

        * gengenrtl.c (gencode): Write obstack_alloc_rtx function start
        in proper format.

        * cse.c (cse_insn): In (set REG0 REG1) case, remove a REG_EQUAL
        note for REG1.

2000-04-21  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (struct arg, struct arglist): Const-ify strings.
        (warn_trad_stringify, duplicate_arg_p): New helper functions.
        (collect_expansion): Rewrite to scan over a token list.
        Remove -traditional support.
        (collect_formal_parameters): Rename to collect_params; rewrite
        to scan over a token list.
        (_cpp_create_definition): Adjust to scan a token list.
        (_cpp_macroexpand): Remove -traditional support.
        (_cpp_compare_defs): Whitespace is now canonicalized.
        (comp_def_part): Delete function.

        * cpphash.h: Update prototypes.
        * cpplex.c (init_token_list): Don't set lineno if there is no
        buffer.
        (pedantic_whitespace): New function.
        (_cpp_scan_line): Mark tokens that had hspace before.  Don't
        consume a newline.  Use pedantic_whitespace.
        (_cpp_lex_token): Remove support for -traditional macros.
        (_cpp_get_define_token): Delete.
        (_cpp_get_directive_token): Do the real work here.  Use
        pedantic_whitespace.
        (_cpp_init_input_buffer): Initialize pfile->directbuf.

        * cpplib.c (get_macro_name): Delete.
        (do_define): Read the entire line into pfile->directbuf, then
        feed the token list to _cpp_create_definition.
        * cpplib.h (HSPACE_BEFORE): new define.
        (struct cpp_reader): Add a toklist member, "directbuf".

        * predict.c (estimate_probability): New heuristic: if a jump
        branches around a block with no successors, predict it taken.
        Disentangle control flow.

2000-04-20  Richard Henderson  <rth@cygnus.com>

        * loop.c (emit_iv_add_mult): Revert last change.

2000-04-20  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (enum cpp_ttype): Add token types for all
        punctuators.  Distinguish pp-numbers from valid C numbers.
        Give some tokens better names.  Initialize from macro.
        (struct cpp_name, cpp_token, cpp_toklist): New data
        structures.
        Update prototypes.
        * cpplex.c (bump_column, expand_name_space,
        expand_token_space, init_token_list, cpp_output_list,
        _cpp_scan_line):  New functions.
        (output_line_command): Add third argument, new line number.
        * cpphash.h: Update prototypes.
        * cppexp.c, cpphash.c, cpplib.c, scan-decls.c: Update for new
        token names.

2000-04-20  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (alpha_emit_floatuns): Emit missing barrier.

2000-04-20  Zack Weinberg  <zack@wolery.cumb.org>

        * c-common.c (decl_attributes) [A_ALIAS]: Set TREE_USED on the
        object pointed to.

Thu Apr 20 14:19:18 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (emit_iv_add_mult):  Simplify it's input and emit
        REG_EQUAL note explaining the calculated value.

        * calls.c (expand_call): Avoid unnecesary precalculation
        and outgoing parameters space guarding for sibling calls.
        (store_one_arg): Likewise.

Thu Apr 20 08:01:07 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * toplev.c (enum dump_file_index, dump_file): Add DFI_sibling.
        (rest_of_compilation): Write sibling dump file and account
        for time as jump time.
        * invoke.texi: Update documentation on dump flags.

2000-04-19  Marek Michalkiewicz  <marekm@linux.org.pl>

        * avr.c: #include "system.h" instead of <stdio.h> and <stdlib.h>.

2000-04-19  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (special_symbol): Represent an empty macro with
        "\r \r " not just "\r ".
        (_cpp_macroexpand): Correct condition for the foo ( ) special
        case.
        (unsafe_chars): Handle EOF as second argument.
        (push_macro_expansion): Simplify test for removing escape at
        end.  Do not trim both escapes if there is no text in between.

2000-04-19  Jim Blandy  <jimb@redhat.com>

        * dwarf2out.c (DWARF2_ADDR_SIZE): New macro.  Use it instead
        of PTR_SIZE, when appropriate.

2000-04-19  Mark Mitchell  <mark@codesourcery.com>

        * system.h (ONLY_INT_FIELDS): Make sure it is defined.
        (USE_ENUM_BITFIELDS): Fix typo.

Wed Apr 19 12:14:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (place_field): Set rli->offset_align properly.

2000-04-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.h (BITS_PER_WORD, UNITS_PER_WORD, UNITS_PER_FPREG,
        INT_TYPE_SIZE, LONG_TYPE_SIZE, POINTER_SIZE, POINTER_BOUNDARY,
        PARM_BOUNDARY): Remove unnecessary casts.

Wed Apr 19 12:02:37 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (precompute_arguments): Remove must_preallocate and
        args_size calls.
        (expand_call): Update call of precompute_arguments.

        * loop.c (check_insn_for_bivs, for_every_insn_in_loop,
        check_insn_for_givs): Break out from ...
        (strength_reduce) ... here; use for_every_insn_in_loop to call
        check_insn_for_givs.
        * loop.h (for_every_insn_in_loop): Declare.
        (loop_insn_callback): New type.

2000-04-18  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (do_pragma_poison):  Strings in the token buffer are
        not nul-terminated.

Tue Apr 18 16:04:12 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/sysv4.h (SELECT_SECTION): Use data_section if
        flag_pic and RELOC.

2000-04-18  Zack Weinberg  <zack@wolery.cumb.org>

        * cccp.c, cexp.y, cexp.c, cccp.1: Removed.

        * configure.in: Delete --disable-cpplib option and all
        references to cpp_main.
        * configure: Regenerate.
        * Makefile.in: Remove all references to CCCP, CCCP_OBJS,
        @cpp_main@, cccp.c, cexp.c, cexp.y, cexp.output, cexp.o,
        cccp.o, cccp, or cppmain.  Link cppmain.o straight to
        cpp$(exeext).  Add --no-headers to makeinfo command line when
        generating INSTALL.  Install and uninstall cpp.1 manpage, not
        cccp.1.
        * install.texi: Delete all references to cexp.y/cexp.c.
        Delete ancient instructions for compiling GCC on 3b1.
        * INSTALL: Regenerate.

        * cppfiles.c, cpplib.h, jump.c, protoize.c, c-lex.c, mips/t-ecoff,
        mips/t-elf, mips/t-r3900: Remove references to cccp.c.
        * convex.h, fx80.h, m68k.h, pdp11.h: Remove references to
        cexp.c/cexp.y.
        * xm-linux.h, xm-os2.h, romp.h: Remove definition of BSTRING,
        which is no longer tested anywhere.

        * cppinit.c (handle_option): Don't run error message through
        gettext twice.

Tue Apr 18 14:16:47 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * conflict.c (conflict_graph_add): Pass enum type to htab_find_slot.
        * cpperror.c (hashtab.h): Now include.
        * cppexp.c (hashtab.h): Likewise.
        * cpplex.c (hashtab.h): Likewise.
        * cppfiles.c (hashtab.h): Likewise.
        (find_include_file, _cpp_calc_hash, cpp_read_file): Pass enum type
        to htab_find_slot_with_hash.
        * cpphash.c (hashtab.h): Now include.
        (_cpp_lookup_slot): INSERT is now enum insert_option.
        * cpphash.h (_cpp_lookup_slot): Likewise.
        * cppinit.c (hashtab.h): Include earlier.
        (initialize_builtins): Pass enum to htab_find_slot.
        * cpplib.c (hashtab.h): Now include.
        (do_define, do_undef): Pass enum type to _cpp_lookup_slot.
        (do_pragma_poison, do_assert): Likewise.
        * emit-rtl.c (gen_rtx_CONST_INT): Pass enum to
        htab_find_slot_with_hash.
        * simplify-rtx.c (cselib_lookup_mem, cselib_lookup): Likewise.
        * tree.c (type_hash_add): Likewise.
        (build1): Minor cleanup.

        * ggc-common.c: Add missing blanks.
        * print-tree.c (print_node): Print DECL_OFFSET_ALIGN.
        * tree.h (DECL_OFFSET_ALIGN): Fix typo in comment.

        * stmt.c (mark_case_node): New function.
        (mark_case_nesting): Call it.

        * expmed.c (emit_store_flag): If comparing two-word integer
        with zero, can optimize NE, EQ, GE, and LT.

        * c-decl.c (mark_binding_level): Use 'for' instead of `while'.
        * conflict.c: Minor cleanups.
        * optabs.c: Add blank line
        * simplify-rtx.c: Minor cleanups.

2000-04-18  Stan Cox  <scox@cygnus.com>

        * gengenrtl.c (genlegend): Fix misspelling.

2000-04-18  Robert Lipe  <robertlipe@usa.net>

        * configure.in (ENUM_BITFIELDS_ARE_UNSIGNED): Added.  Check that
        bitfields of the host compiler are not signed quantities.
        * config.in: Regenerate.
        * configure: Regenerate.
        * system.h (USE_ENUM_BITFIELDS): Added.
        (ENUM_BITFIELDS): Added.
        * rtl.h (rtx_def): Members `code', `mode', now ENUM_BITFIELD.
        (SHORT_ENUM_BUG): Deleted.
        * tree.h (tree_common): Members `code', `mode', `built_in_class',
        now ENUM_BITFIELD.
        * config/i386/xm-sco.h (ONLY_INT_FIELDS): Deleted.
        (CODE_FIELD_BUG): Likewise.
        * config/m68k/x-apollo68 (CC): Deleted SHORT_ENUM_BUG.
        (OLD_CC): Likewise.
        * config/m68k/x-ccur (X_CFLAGS): Likewise.

2000-04-18  Mark Mitchell  <mark@codesourcery.com>

        * cpplex.c (_cpp_lex_token): Don't call CPP_BUMP_LINE when the
        mark is active.

2000-04-17  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c (lex): Don't assume tokens are NUL terminated.
        * cpplib.c (do_include, do_import, do_include_next,
        read_line_number, detect_if_not_defined): Likewise.
        * cpphash.c (collect_expansion): Likewise.
        (special_symbol, _cpp_macroexpand): Check return from
        cpp_file_buffer.
        * cpphash.h (CPP_NUL_TERMINATE, CPP_NUL_TERMINATE_Q): Delete
        macros.  Delete all uses.

        * gcc.dg/cpp-mi.c: Add two more test cases.
        * gcc.dg/cpp-mind.h, gcc.dg/cpp-mindp.h: New files.

2000-04-17  Richard Henderson  <rth@cygnus.com>

        * bb-reorder.c (fixup_reorder_chain): Don't look up new block again.
        (reorder_basic_blocks): If no epilogue in rtl, force last block last.

2000-04-17  Mark Mitchell  <mark@codesourcery.com>

        * function.c (expand_function_start): Use hard_function_value to
        compute the RTL to use for DECL_RESULT.

Mon Apr 17 23:35:29 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.c (athlon_cost): Fix lea, divide and XFmode move costs.
        (x86_integer_DFmode_moves, x86_partial_reg_dependency,
         x86_memory_mismatch_stall): New global variables.
        (ix86_adjust_cost): Handle MEMORY_BOTH on places MEMORY_STORE was only
        alloved; fix load penalties for Athlon.
        * i386.h (x86_integer_DFmode_moves, x86_partial_reg_dependency,
        x86_memory_mismatch_stall): Declare.
        (TARGET_INTEGER_DFMODE_MOVES, TARGET_PARTIAL_REG_DEPENDENCY,
         TARGET_MEMORY_MISMATCH_STALL): New.
        * i386.md (athlon scheduling parameters): Fix latencies according to
        Athlon Optimization Manual.
        (sahf, xchg, fldcw, leave instruction patterns): Set athlon_decode to
        vector.
        (fsqrt instruction patterns): Set athlon_decode to direct.
        (movhi_1): Promote for TARGET_PARTIAL_REG_DEPENDENCY and for
        PARTIAL_REGISTER_STALL with !TARGET_HIMODE_MATH machines.
        (movqi_1): Handle promoting correctly for TARGET_PARTIAL_REG_DEPENDENCY
        and TARGET_PARTIAL_REGISTER_STALL machines.
        (pushdf_nointeger): New pattern.
        (pushdf_integer): Rename from pushdf.
        (movdf_nointger): Enable for !TARGET_INTEGER_DFMODE_MOVES machines.
        (movdf_intger): Disable for !TARGET_INTEGER_DFMODE_MOVES machines.

2000-04-17  Richard Henderson  <rth@cygnus.com>

        * loop.c (canonicalize_condition): Add WANT_REG argument.
        Stop the search if we match it.
        * expr.h (canonicalize_condition): Update decl.
        * predict.c (expected_value_to_br_prob): Use it.  Track last
        expected value note.
        (find_expected_value): Remove.

        * reorg.c (mostly_true_jump): Always use BR_PROB if present.

2000-04-17  Zack Weinberg  <zack@wolery.cumb.org>

        * aclocal.m4 (AM_GNU_GETTEXT): Don't AC_REQUIRE([AC_FUNC_MMAP]).
        (AC_FUNC_MMAP_FILE): New macro, tests read-only private map of
        a plain file.
        * configure.in: Call AC_FUNC_MMAP_FILE.
        * configure: Regenerate.
        * config.in: Regenerate.

        * intl/loadmsgcat.c: Test HAVE_MMAP_FILE not HAVE_MMAP.
        * fixinc/fixincl.c: Likewise.

2000-04-17  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_expect): New.
        (expand_builtin): Call it.
        * builtins.def (BUILT_IN_EXPECT): New.
        * c-common.c (c_common_nodes_and_builtins): Declare __builtin_expect.
        * extend.texi: Document it.

        * predict.c (expected_value_to_br_prob): New.
        (find_expected_value): New.
        * basic-block.h (expected_value_to_br_prob): Declare.
        * toplev.c (rest_of_compilation): Invoke it.

        * rtl.h (NOTE_EXPECTED_VALUE): New.
        (NOTE_INSN_EXPECTED_VALUE): New.
        * rtl.c (note_insn_name): Update.
        * print-rtl.c (print_rtx): Reorg NOTE_LINE_NUMBER special
        cases; handle NOTE_INSN_EXPECTED_VALUE.

2000-04-17  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (eligible_for_sibcall_delay): Cannot use
        leaf sibcall delay slot if flag_pic.
        (output_sibcall): Always emit call for leaf sibcall if flag_pic.

2000-04-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (stmp-fixproto): Acknowledge errors in fixproto.

        * fixproto: If fix-header fails, exit with an error.

Mon Apr 17 14:59:36 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * cse.c (struct check_depdendence_data): New.
        (check_dependence): New function.
        (invalidate): Use check_depdenence.

2000-04-16  Mark Mitchell  <mark@codesourcery.com>

        * dwarf2out.c (DWARF_CIE_DATA_ALIGNMENT): Adjust, now that
        UNITS_PER_WORD is unsigned.

        * tree.h (struct tree_common): Remove misleading comment.

2000-04-16  Dave Pitts  <dpitts@cozx.com>

        * Makefile.in ($(srcdir)/c-parse.y: c-parse.in): Enclose the whole
        message in quotes. Otherwise, IBM's make program treats the '#' as the
        start of a comment and ignores the remainder of the line.

        * c-lex.c (yylex): Change for EBCDIC, lower case characters preceed
        upper case.
        * cccp.c (initialize_char_syntax): Allow for holes in EBCDIC.
        * cexp.y (initialize_random_junk): Likewise.
        * cppfiles.c (find_include_file): Cast alloca return value.
        * cppinit.c (initialize_standard_includes): Likewise.
        * cpplib.c (cpp_define, cpp_undef): Likewise.
        * defaults.h (ASM_OUTPUT_ASCII): Use ISPRINT.
        * final.c (output_asm_insn): Allow for holes in EBCDIC.
        * fold-const.c (CHARMASK): New.
        (real_hex_to_f): Use it.
        * real.c (CHARMASK): New.
        (etoasc, asctoeg): Use it.
        (asctoeg): EBCDIC lower case characters preceed upper case.

        * i370.c (mvs_add_label): Change spacing for coding conventions.
        * i370.h (ASM_OUTPUT_CASE_LABEL): Change to the data CSECT for the
        outputing case vectors.
        (ASM_OUTPUT_CASE_END): New, put assembler back into code CSECT.
        (ASM_OUTPUT_ADDR_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT): Remove page check,
        since vector in in the data CSECT.
        (ASM_OUTPUT_REG_POP, ASM_OUTPUT_REG_PUSH): Restore to correct operation.
        * i370.md (Many patterns): Put the length in the XL directives.
        (movdi): Put back STM and MVC in definition.
        (floatsidf2): Correct TARGET_ELF_ABI pattern and add back the LE370
        pattern using the TCA.
        * oe.h (CPP_SPEC): Added to allow trigraphs.
        * xm-oe.h (HOST_BITS_PER_LONGLONG): Change to 32. IBM's compiler does
        not support the "long long" type.

2000-04-16  Mark Mitchell  <mark@codesourcery.com>

        * config/mips/mips-protos.h (mips_legitimate_address_p): New
        function.
        (mips_reg_mode_ok_for_base_p): Likewise.
        * config/mips/mips.h (REG_OK_STRICT_P): Don't define.
        (REG_OK_FOR_INDEX_P): Define unconditionally.
        (REG_MODE_OK_FOR_BASE_P): Use mips_reg_mode_ok_for_base_p.
        (GO_IF_LEGITIMATE_ADDRESS): Use mips_legitimate_address_p.
        * config/mips/mips.c (mips16_simple_memory_operand): Adjust now
        that GET_MODE_SIZE is unsigned.
        (mips_reg_mode_ok_for_base_p): Define.
        (mips_legitimate_address_p): Likewise.  Adjust now
        that GET_MODE_SIZE is unsigned.
        (block_move_loop): Make the number of bytes unsigned.
        (expand_block_move): Likewise.
        (function_arg): Make the loop counter unsigned to match the
        boundary condition.

2000-04-16  Richard Henderson  <rth@cygnus.com>

        * rtl.h (enum insn_note): New enumeration.  Subsume
        NOTE_INSN_DELETED and friends.
        (GET_NOTE_INSN_NAME): Adjust index by NOTE_INSN_BIAS.
        * rtl.c (note_insn_name): Tweak string order.

2000-04-15  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (_cpp_read_and_prescan): Enlarge len by setting it
        to offset * 2.

        * cpplex.c (output_line_command): Remove debugging prints.
        (cpp_output_tokens): Don't write out a zero-length buffer or
        try to see if it has a newline in it.
        (_cpp_expand_to_buffer): Copy the source buffer before pushing.
        (_cpp_read_and_prescan): Move shift-down of pushback bytes to
        the end of the loop.  Use memmove.  Don't read past the end of
        the buffer.  Remove trailing newlines from error messages.

2004-04-16  Neil Booth  <NeilB@earthling.net>

        * cpphash.h (SYNTAX_INCLUDE, SYNTAX_ASSERT, directive_handler): new.
        * cpplib.c: Add new syntax flags to directive table, and
        supporting macros.

2000-04-15  Ulrich Drepper  <drepper@redhat.com>

        * i386.c (ix86_expand_epilogue): Yes, the x86 can pop 64k at once
        using ret $N.

2000-04-15  David Edelsohn  <edelsohn@gnu.org>

        * toplev.c (display_help): Prefix "f" to "sched-verbose=".
        * haifa-sched.c: Update -fsched-verbose comments to use "=".

Sat Apr 15 10:59:19 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * Makefile.in (ggc-page.o): Now includes toplev.h.
        * ggc-page.c (toplev.h): Now included.
        (gc_time): Remove declaration.
        (ggc_collect): TIME now long.
        * toplev.c (parse_time, varasm_time, gc_time): Still global; all
        others static.
        * toplev.h (gc_time, parse_time, gc_time): New declarations.

        * toplev.c: Make *_time variable long to reduce chance of overflow.
        (TIMEVAR): Likewise for `otime'.
        (print_time): Arg is now long; compute percentage in FP and round.
        * toplev.h (print_time): Arg is long.

        * tree.c: Minor whitespace changes.

        * configure.in (alpha*-*-*): Add config/alpha/t-alpha.
        * configure: Rebuilt.
        * libgcc2.c (__fixunstfDI): Renamed from __fixunstfdi.
        (__fixunsxfDI): Renamed from __fixunsxfdi.
        (__fixunsdfDI): Renamed from __fixunsdfdi.
        (__fixunssfDI): Renamed from __fixunssfdi.
        (__floatdisf): Use proper type in REP_BIT macro.
        (__fixunsxfSI): Renamed from __fixunsxfsi.
        (__fixunsdfSI): Renamed from __fixunsdfsi.
        (__fixunssfSI): Renamed from __fixunssfsi.
        * libgcc2.h: Add cases for MIN_UNITS_PER_WORD > 4.
        Change location of macros and upper-case some names as above.
        * longlong.h ([alpha]): Use PARAMS, not __P in decl of __udiv__qrnnd.
        * config/alpha/t-alpha, config/alpha/qrnnd.asm: New files.

        * varasm.c (assemble_variable): Add cast to remove warning.
        (immed_real_const_1): Only use CONST[01]_RTX if not in nested function.

        * flow.c (count_basic_blocks, find_basic_blocks_1): Remove last change.
        * optabs.c (emit_libcall_block): If have REG_EH_REGION, update
        region number to -1.

2000-04-15  Richard Earnshaw (rearnsah@arm.com)

        * emit-rtl.c (unshare_all_rtl_again): Unmark everything, then
        call unshare_all_rtl.

        * arm.md (movhi): REGNO_POINTER_ALIGN is now bits.

Fri Apr 14 16:58:45 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/lib1funcs.asm (__divdi3, __moddi3, __udivdi3, __umoddi3):
        Use .s1 not .s0 for all FP instructions.

2000-04-14  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (cpp_output_tokens, cpp_scan_buffer_nooutput): New public
        interfaces.
        (safe_fwrite, output_line_command): New static functions.
        (cpp_expand_to_buffer): Now private to cpplib.
        (cpp_scan_buffer): Take a printer.

        * cpphash.h: Update prototypes.
        * cpplib.h: Update prototypes.
        (cpp_printer): New.
        (cpp_buffer): Remove last_nominal_fname.
        (cpp_reader): Remove lineno.

        * cppmain.c: Use a cpp_printer.
        * fix-header.c: No need to inhibit line commands.  Call
        cpp_start_read with no printer.

        * cpperror.c (cpp_notice_from_errno): Provide default name.
        * cppfiles.c (make_IHASH, _cpp_fake_ihash): New functions.
        (find_include_file, cpp_read_file): Use make_IHASH.
        (file_cleanup): Set control_macro and clear
        input_stack_listing_current here.
        (_cpp_execute_include): Don't output entering-file marker.
        * cpphash.c (special_symbol): Look for the line number in the
        buffer, not the reader.
        (_cpp_macroexpand): No need to disable line commands.
        (_cpp_dump_definition): No need to generate line commands.
        (dump_hash_helper): Remove excess newline from output.
        * cppinit.c (dump_special_to_buffer): No need to generate line
        commands.
        (cpp_printer_init): New.
        (cpp_start_read): Take a printer, and start it up if it's not
        NULL.  No need to generate line commands.
        (cpp_finish): Expect no buffers stacked at all.  Take a
        printer argument, and flush the output buffer if it's not
        NULL.
        * cpplex.c (_cpp_lex_token): Return EOF if there's no buffer.
        Don't put two hashes at the beginning of an assertion.
        (cpp_get_token): Don't increment pfile->lineno or emit line
        commands here.  Return EOF if there's no buffer when we get
        EOF.
        * cpplib.c (do_define, skip_if_group):
        No need to disable line commands.
        (_cpp_output_line_command): Delete function.
        (do_line): Don't emit line commands here, but set things up so
        they will be emitted if necessary.  Use _cpp_fake_ihash to
        make unique nominal_fnames if necessary.
        (do_elif, do_else, _cpp_handle_eof): Call cpp_error_with_line
        with 0 for column, not -1.
        (_cpp_handle_eof): Don't set the control macro here.  Don't
        clear input_stack_listing_current here.  Don't emit line
        commands.

2000-04-14  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/sysv4.h (LINK_START_SOLARIS_SPEC): Define to empty
        always, use the default SVR4 start address.

        * config/rs6000/linux.h (LINK_SPEC): Don't define.
        (LINK_SHLIB_SPEC): Define.
        (LINK_START_DEFAULT_SPEC): Define.
        (LINK_OS_DEFAULT_SPEC): Define.

        * config/rs6000/sysv4.h (ENDFILE_SPEC): Use the %(endfile_*) macros.

        * config/rs6000/eabi.asm (__eabi): Call __init rather than
        __do_global_ctors to handle constructors.
        * config/rs6000/sysv4.h (STARTFILE_ADS_SPEC): Use crtbegin.
        (STARTFILE_YELLOWKNIFE_SPEC): Likewise.
        (STARTFILE_MVME_SPEC): Likewise.
        (STARTFILE_SIM_SPEC): Likewise.
        (ENDFILE_ADS_SPEC): Use crtend.
        (ENDFILE_YELLOWKNIFE_SPEC): Likewise.
        (ENDFILE_MVME_SPEC): Likewise.
        (ENDFILE_SIM_SPEC): Likewise.
        (STARTFILE_SOLARIS_SPEC): Use crtbegin/crtbeginS.
        (ENDFILE_SOLARIS_SPEC): Use crtend/crtendS.
        (STARTFILE_LINUX_SPEC): Use crtbeginS for shared objects.
        (ENDFILE_LINUX_SPEC): Use crtendS for shared objects.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Don't build eabi-ctors.o.
        (EXTRA_MULTILIB_PARTS): Build crtbeginS/crtendS.
        (CRTSTUFF_T_CFLAGS_S): Define.
        * config/rs6000/eabi-ctors.c: Delete.

        * config/rs6000/eabi-ci.asm (__init): Align stack to 16-byte
        boundary.
        (__fini): Likewise.
        * config/rs6000/eabi-cn.asm (__init): Allow for 16-byte stack frame.
        boundary.
        (__fini): Likewise.

Fri Apr 14 16:09:02 2000  Jim Wilson  <wilson@cygnus.com>

        * combine.c (force_to_mode, case LSHIFTRT): Check that shift shift
        plus mask size is smaller or equal to the mode size.

Fri Apr 14 18:07:30 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * print-rtl.c (print_rtx, case NOTE): Don't blow up if NOTE_BASIC_BLOCK
        not yet set.

        * expr.c (reload.h): Now included.
        (emit_block_move): Set volatile_ok when checking for movstr.
        (emit_move_1): Check for replacements in addresses in multi-word case.
        * Makefile.in (expr.o): Now includes reload.h.

        * flow.c (count_basic_blocks): Remove unused var PREV_CALL.
        Never have a LIBCALL end a basic block.
        (find_basic_blocks_1): Likewise.
        Reorganize CALL_INSN cases.

        * sbitmap.h (EXECUTE_IF_SET_IN_SBITMAP): Revert last change.

Fri Apr 14 10:54:22 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/lib1funcs.asm (__ia64_nonlocal_goto): Drop obsolete
        completers from mov.ret instruction.

2000-04-14  Richard Henderson  <rth@cygnus.com>

        * fold-const.c (extract_muldiv): Don't distribute and widen
        multiply across plus for non-sizetype unsigned types.

2000-04-14  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_auto_inc): Don't autoinc eliminable registers.
        If the original source is dead in the incr insn, it's dead now.

Fri Apr 14 07:40:32 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (layout_decl): Properly compare KNOWN_ALIGN to
        see if DECL_BIT_FIELD needs to still be set.

        * tree.h (struct tree_type): Make PRECISION 9 bits and MODE 7.

        * dbxout.c (dbxout_type, case INTEGER_TYPE): Don't call
        print_int_cst_octal with something that's not an INTEGER_CST.

        * config/alpha/alpha.c (alpha_emit_floatuns): Ensure we pass a REG
        and not a SUBREG to a FLOAT rtl.

Thu Apr 13 19:39:56 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * emit-rtl.c (try_split): Avoid infinite loop if the split
        results in a sequence that contains the original insn.

2000-04-13  Andreas Jaeger  <aj@suse.de>

        * config/mips/mips.c (expand_block_move): Pass alignment
        argument to move_by_pieces in bits, not bytes.

        * config/mips/linux.h (CPP_PREDEFINES): Also define __PIC__ and
        __pic__ for little endian.

2000-04-13  Andreas Jaeger  <aj@suse.de>

        * config/i386/i386-protos.h: Add prototype for
        uno_comparison_operator.

Thu Apr 13 15:55:08 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * alias.c (nonlocal_reference_p): Take care of CALL_INSNS's fusage.
        * calls.c (ECF_PURE): New flag.
        (emit_call_1): Handle ECF_PURE calls.
        (initialize_argument_information): Unset ECF_PURE flag too.
        (precompute_arguments): Precompute for ECF_PURE too.
        (expand_call): Handle ECF_PURE calls too.
        (emit_library_call_value_1): Rename no_queue argument to fn_type,
        accept value of 2 as pure function.
        (emit_library_call_value, emit_library_call): Rename no_queue argument
        to fn_type.
        * optabs.c (prepare_cmp_insn): Pass fn_type 2 to memcmp call.

        * tree.h (DECL_IS_PURE): New macro.
        (struct tree_decl): Add pure_flag.
        * c-common.c (enum attrs): Add attribute "pure".
        (init_attributes): Initialize attribute "pure"
        (decl_attributes): Handle attribute "pure".
        * extend.texi (Attribute "pure"): Document.
        * calls.c (expand_call): Add (mem:BLK (scratch)) to "equal from"
        in pure function.
        (flags_from_decl_or_type): Support attribute "pure".

2000-04-13  Jason Merrill  <jason@casey.cygnus.com>

        * cpplex.c (_cpp_lex_token): Handle digraphs.  Don't null-terminate
        the token except for numbers and identifiers.

Thu Apr 13 00:09:16 EDT 2000  John Wehle  (john@feith.com)

        * i386.c (ix86_expand_binary_operator,
        ix86_expand_unary_operator): Check no_new_pseudos
        instead of reload_in_progress and reload_completed.
        (ix86_split_ashldi, ix86_split_ashrdi,
        ix86_split_lshrdi): Check no_new_pseudos instead
        of reload_completed.

2000-04-12  Jeffrey A Law  (law@cygnus.com)

        * function.c (purge_addressof): Unshare any shared rtl created by
        purge_addressof and its children.

2000-04-12  Mark Mitchell  <mark@codesourcery.com>

        * function.c (aggregate_value_p): VOID_TYPE nodes are never
        aggregates.

2000-04-05  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h (SUBTARGET_ASM_SPEC): Use proper flags if
        not compiling PIC code, add flags for mabi=64.
        (SUBTARGET_CPP_SIZE_SPEC): New.
        (SUBTARGET_CPP_SPEC): New.
        (CPP_PREDEFINES): Define __PIC__ and __pic__.  PIC code is default
        for MIPS/Linux and lots of code needs these defines.

Wed Apr 12 22:44:11 2000  Hans-Peter Nilsson  <hp@axis.com>

        * reorg.c (fill_slots_from_thread): Check side_effects_p when
        trying the "opposite arithmetic" approach.

Wed Apr 12 20:51:20 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (STRUCT_VALUE): Just 0 for TARGET_HITACHI.
        (struct sh_args): Add new field force_mem.
        (INIT_CUMULATIVE_ARGS): Initialize it.
        (FUNCTION_ARG, FUNCTION_ARG_ADVANCE): Act on it.

Wed Apr 12 17:20:41 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (expand_call): Do not reverse args in "equal from" field.
        (emit_library_call_value_1): Emit_libcall_block for const and pure
        function.

Wed Apr 12 16:00:25 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine): Don't enable optimization for fixed
        registers when encountering a BARRIER.

Wed Apr 12 15:54:11 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_memcmp): Do expansion even with
        !HAVE_cmpstrsi, do libcall when gen_strcmpsi fails.

        * calls.c (expand_call): Do NO_DEFER_POP unconditionally once
        stack is propertly aligned; add sanity checking for aligned
        stack pointer.
        (expand_library_call_value_1): Add sanity checking for aligned
        stack pointer.

Wed Apr 12 07:51:54 2000  Catherine Moore  <clm@cygnus.com>

        * calls.c (emit_library_call_value_1): Change 3rd arg to
        locate_and_pad_parm to disregard the setting of partial.

Wed Apr 12 08:47:38 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.c (unsave_expr_now_r, unsafe_for_reeval): Properly do TREE_LIST.

        * print-rtl.c (print_rtx): For CALL_PLACEHOLDER, output the
        CALL_INSN from the normal case.

Fri Apr  7 12:23:04 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.c (x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8):
        New global variables.
        (ix86_emit_epilogue_adjustment): Do not attempt to use pop for the
        adjustment.
        * i386.h (x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8):
        Declare,
        (TARGET_SUB_ESP_4, TARGET_SUB_ESP_8, TARGET_ADD_ESP_4,
         TARGET_ADD_ESP_8): New macros.
        * i386.md: Add peep2s to convert esp adjustments to push and pop
        instructions.
        (pushsi_prologue, popsi_epilogue): New patterns.

2000-04-12  Jakub Jelinek  <jakub@redhat.com>

        * real.c (toe64): Remove stale #endif from the last change.

2000-04-12  Stephen L Moshier  <moshier@mediaone.net>

        * real.h (MAX_LONG_DOUBLE_TYPE_SIZE): Comment.
        * real.c (toe64): Revert previous change.

2000-04-12  Jakub Jelinek  <jakub@redhat.com>

        * objc/objc-act.c: Include ggc.h.
        (objc_tree_index, objc_global_trees): Convert most of the
        static tree variables into a static array with previous names
        as defines.
        (objc_ellipsis_node): New variable.
        (lang_init): Call objc_act_parse_init and c_parse_init.
        Create objc_ellipsis_node.
        (build_selector_translation_table): Use objc_ellipsis_node instead
        of (tree)1.
        (hack_method_prototype): Likewise.
        (get_arg_type_list): Likewise.
        (start_method_def): Likewise.
        (continue_method_def): Likewise.
        (gen_method_decl): Likewise.
        (ggc_mark_imp_list): New function.
        (ggc_mark_hash_table): New function.
        (objc_act_parse_init): New function.
        * objc/objc-act.h (objc_ellipsis_node): Add extern variable.
        * c-parse.in (c_parse_init): For objc add roots of objc specific
        local tree variables.
        * objc/objc-parse.y: Rebuilt.
        * objc/objc-parse.c: Rebuilt.
        (opt_parm_list): Use objc_ellipsis_node instead of (tree)1.

Wed Apr 12 01:00:44 EDT 2000  John Wehle  (john@feith.com)

        * cse.c (delete_trivially_dead_insns): Also delete insns
        that copy a register to itself where the destination is
        a strict_low_part.

2000-04-11  Richard Henderson  <rth@cygnus.com>

        * flow.c (struct propagate_block_info): Add new_dead, new_live.
        (propagate_block): Initialize them.  Use them in parallel instead
        of one tmp variable, ie revert much of the 0408 and 0407 functional
        changes, but keep the structural changes.
        (mark_set_regs): Take new_dead from propagate_block_info instead.
        (mark_set_1, mark_set_reg): Likewise.
        (mark_used_regs): Likewise with new_live.
        (mark_used_reg): Likewise.  Revert 0408 change.

2000-04-11  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h: (INCOMING_RETURN_ADDR_RTX): Remove Dwarf2
        restriction.
        (DWARF_FRAME_RETURN_COLUMN): Remove Dwarf2 restriction.

2000-04-11  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/elfos.h (SELECT_SECTION): Decide whether to use a data or
        const section to output a CONSTRUCTOR based on the same conditions
        used for VAR_DECLs.

Tue Apr 11 09:55:59 2000  Jeffrey A Law  (law@cygnus.com)

        * pa/long-double.h (FIX_TRUNCTFSI2_LIBCALL): Tweak for PA64.
        * pa/pa-protos.h (output_call): Add additional argument indicating
        if the call is a sibling/tail call.
        (compute_zdepdi_operands, output_64bit_and): Prototype new functions.
        (compute_64bit_ior, cmpib_comparison_operator): Likewise.
        (function_arg, function_arg_partial_nregs): Likewise
        * pa/pa.c (override_options): Always set flag_pic for TARGET_64BIT.
        (emit_move_sequence): Zero extend certain constants as needed
        for TARGET_64BIT.
        (compute_zdepdi_operands, output_64bit_and): New functions.
        (output_64bit_ior, function_arg): Likewise.
        (cmpib_comparison_operator, function_arg_partial_nregs): Likewise.
        (compute_frame_size, hppa_expand_prologue): Handle TARGET_64BIT.
        (hppa_expand_epilogue, return_addr_rtx, hppa_va_arg): Likewise.
        (hppa_builtin_saveregs, output_cbranch, output_bb): Likewise.
        (output_bvb): Likewise.
        (output_millicode_call): Return pointer is in %r2 for TARGET_64BIT.
        (output_call): New argument 'sibcall'.  Generate sibcall sequences
        as needed.
        (print_operand); Handle cases 'Q', 'p', and 'z' for TARGET_64BIT.  For
        (ouput_arg_descriptor): Do not emit argument descriptors for
        TARGET_64BIT.
        * pa/pa.h (TARGET_PA_11, TARGET_PA_20): Only define if not already
        defined.
        (TARGET_64BIT, PROMOTE_FUNCTION_RETURN): Define.
        (FUNCTION_OK_FOR_SIBALL): Define.
        (CPP_PA10_SPEC, CPP_PA11_SPEC, CPP_PA20_SPEC): Define.
        (CPP_CPU_DEFAULT_SPEC, SUBTARGET_EXTRA_SPECS, EXTRA_SPECS): Likewise.
        (CPP_SPEC): Use new spec infrastructure.
        (BITS_PER_WORD, UNITS_PER_WORD): Handle TARGET_64BIT.
        (STACK_BOUNDARY, FUNCTION_BOUNDARY, PIC_OFFSET_TABLE_REGNUM): Likewise.
        (RETURN_IN_MEMORY, EXTRA_CONSTRAINT, FIRST_PARM_OFFSET): Likewise.
        (REG_PARM_STACK_SPACE, STACK_POINTER_OFFSET): Likewise.
        (STACK_DYNAMIC_OFFSET, FUNCTION_VALUE): Likewise.
        (FUNCTION_ARG_PASS_BY_REFERENCE, FUNCTION_ARG_CALLEE_COPIES): Likewise.
        (TRAMPOLINE_TEMPLATE, TRAMPOLINE_SIZE): Likewise.
        (INITIALIZE_TRAMPOLINE, LEGITIMATE_CONSTANT_P): Likewise.
        (CONST_OK_FOR_LETTER_P, MOVE_RATIO): Likewise.
        (FUNCTION_ARG); Call out to C code.
        (FUNCTION_ARG_PARTIAL_NREGS): Likewise.
        (MAX_BITS_PER_WORD, MAX_LONG_TYPE_SIZE, MAX_WCHAR_TYPE_SIZE): Define.
        (MIN_UNITS_PER_WORD): Likewise.
        * pa/pa.md (cmpdi): New expander.
        (scc patterns, movstrsi): Not available for TARGET_64BIT.
        (64bit conditional arithmetic): New patterns.
        (absdi2, smindi3, umindi3, smaxdi3, umaxdi3): New patterns.
        (movsicc): Not available if modes on all the operands to not match.
        (movdicc): New expander and associated patterns.
        (64bit branches): New patterns.
        (pre_load, post_store): Generate appropriate code for TARGET_64BIT.
        (pre_ldd, post_std): New patterns.
        (64bit addil, load low part): New patterns.
        (special movsf constant): Not available for TARGET_64BIT.
        (movsf, movdf expanders): Force constants into memory.
        (32bit movdf/movdi patterns): Disable for TARGET_64BIT.
        (64bit movdf/movdi patterns): New patterns.
        (zero_extendqidi2, zero_extendhidi2, zero_extendsidi2): New patterns
        for TARGET_64BIT.
        (extendqidi2, extendhidi2, extendsidi2): Similarly.
        (adddi3 expander): Allow "arith_operand" for second input.
        (32bit adddi3, subdi3, uaddcm): Disable for TARGET_64BIT.
        (64bit adddi3, subsi3, uaddcm): New patterns for TARGET_64BIT.
        (mulsi3 expander): Revamp slightly so it supports TARGET_64BIT too.
        (muldi3): New expander for TARGET_64BIT.
        (divsi3, udivsi3, modsi3, umodsi3): Fourth operand must be (reg:SI 2)
        for TARGET_64BIT.
        (32bit anddi3, iordi3, xordi3, andcm, negdi2, uaddcm): Disable
        patterns for TARGET_64BIT.
        (64bit anddi3, iordi3, xordi3, andcm, negdi2, uaddcm, shadd): New
        patterns for TARGET_64BIT.
        (64bit bit insertion/extractions): New patterns for TARGET_64BIT.
        (64bit shifts/rotates): New patterns/expanders for TARGET_64BIT.
        (sibcall_epilogue): New expander.
        (casesi): Tweak for TARGET_64BIT.
        (call expanders): Set & use the outgoing argument pointer.  Use the
        64bit call patterns as needed. Add additional arg to output_call.
        (call_internal_reg_64bit, call_value_internal_reg_64bit): New pattern.
        (sibcall, sibcall_internal_symref): New expanders.
        (sibcall_value, sibcall_value_internal_symref
        (interspace_jump): Turn into an expander + matching patterns.
        (canonicalize_funcptr_for_compare): Not needed for TARGET_64BIT.
        * pa/pa64-regs.h: Eliminate trigraph sequences.
        * pa/pa64-start.h (TARGET_PA_20): Fix typo.

2000-04-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c, cpphash.c, cpphash.h, cpplex.c, cpplib.c,
        cpplib.h, cppmain.c, fix-header.c, scan-decls.c: Replace
        cpp_token with cpp_ttype everywhere.
        * cpperror.c, cpphash.c, cpplex.c, cpplib.c, scan-decls.c:
        Replace cpp_buf_line_and_col with CPP_BUF_LINE and/or
        CPP_BUF_COL.  Line and column numbers are unsigned int, not
        long.
        * cpplex.c (cpp_buf_line_and_col): Delete.
        * cpplib.h (struct cpp_buffer, struct cpp_reader): Change
        'long lineno' to 'unsigned int lineno'.
        (CPP_BUF_LINE, CPP_BUF_COL): New macros.

2000-04-11  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * extend.texi: ISO C99 is not a draft anymore.
        * invoke.texi: ISO C++ is not a draft anymore.
        * cpp.texi: __cplusplus is required by the ISO standard.

        * extend.texi (-fthis-is-variable): Undocument.
        * flags.h (warn_template_debugging): Remove declaration.
        * gcc.1 (-fall-virtual, -fenum-int-equiv, -fthis-is-variable,
        -Wenum-clash, -Wtemplate-debugging): Undocument.

2000-04-10  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (HOST_INT): New macro: Declare a HOST_WIDE_INT
        integer.
        (HOST_UINT): New macro: Declare an unsigned HOST_WIDE_INT
        integer.
        (ARM_SIGN_EXTEND): Use HOST_UINT.
        (STRIP_NAME_ENCODING): Prevent warnings about redefinitions.
        (ASM_OUTPUT_LABELREF): Prevent warnings about redefinitions.
        (INCOMING_RETURN_ADDR_RTX): Only define if Dwarf2 is supported.
        (DWARF_FRAME_RETURN_COLUMN): Only define if Dwarf2 is supported.

        * config/arm/arm.c: (const_ok_for_arm): Use HOST_UINT.
        (arm_gen_constant): Use HOST_UINT.
        (arm_canonicalize_constant): Use HOST_UINT.
        (arm_reload_in_hi): Use HOST_UINT.
        (arm_reload_out_hi): Use HOST_UINT.
        (output_multi_immediate): Use HOST_UINT.
        (int_log2): Use HOST_UINT.
        (arm_poke_function_name): Use HOST_UINT.
        (arm_output_epilogue): Use arm_volatile_func().
        (output_thumb_prologue): Use arm_strip_name_encoding().

Mon Apr 10 15:40:59 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * sbitmap.c (sbitmap_a_subset_b_p): Rework loop to avoid potential
        of sequence point problems.

2000-04-10  Nathan Sidwell  <nathan@codesourcery.com>

        * rtl.def (ASHIFT, ROTATE, ASHIFTRT, LSHIFTRT, ROTATERT):
        Recomment.
        * tree.def (LSHIFT_EXPR, RSHIFT_EXPR): Recomment.

Mon Apr 10 07:21:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * sbitmap.h: Whitespace changes and use upper-case macro args.
        (struct simple_bitmap_def): All sizes now unsigned.
        (EXECUTE_IF_SET_IN_SBITMAP): Internal vars now _X instead of X_.
        * sbitmap.c (sbitmap_alloc): N_ELMS now unsigned; also local vars.
        (sbitmap_vector_alloc): Parms and local vars now unsigned.
        (sbitmap_zero): Cast bzero arg to PTR.
        (sbitmap_vector_zero, sbitmap_vector_one): Parm and Local var unsigned.
        (sbitmap_union_of_diffs): Change loop index to unsigned and rework
        loop to make structure clearer.
        (sbitmap_not, sbitmap_difference, sbitmap_a_and_b): Likewise.
        (sbitmap_a_or_b, sbitmap_a_subset_b_p, sbitmap_a_or_b_and_c): Likewise.
        (sbitmap_a_and_b_or_c): Likewise.
        (sbitmap_intersection_of_succs): Minor cleanups.
        (sbitmap_intersection_of_preds, sbitmap_union_of_succs): Likewise.
        (sbitmap_union_of_preds): Likewise.
        (sbitmap_first_set_bit, dump_sbitmap): Local variables now unsigned.
        (debug_sbitmap): New function.

        * c-convert.c (convert): Handle REFERENCE_TYPE like POINTER_TYPE.
        * c-typeck.c (convert_for_assignment): Likewise.

        * expmed.c (init_expmed): Don't free objects we make.
        * emit-rtl.c (gen_rtx_CONST_INT, init_emit_once): Minor cleanups.

        * expr.c (get_inner_reference): Correct some WITH_RECORD_EXPR cases.
        (expand_expr, case CONVERT_EXPR): Pass proper alignment to store_field.

        * gcse.c (expr_hash_table_size): Now unsigned.
        (compute_ae_gen): Local variable `i' now unsigned.
        (compute_ae_kill, pre_insert_copies, pre_delete, pre_gcse): Likewise.
        (compute_transout, hoist_code): Likewise.
        (compute_local_properties): Likewise, also hash_table_size.
        (alloc_expr_hash_table): N_INSNS now unsigned.
        (delete_null_pointer_checks): Mark arg F as unused.

        * regrename.c: Minor cleanups, including chang some variables
        to unsigned int.

2000-04-10  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (skip_block_comment): Use pointer arithmetic rather
        than GETC ().
        * cpphash.h: (CPP_BUMP_BUFFER_LINE_CUR, CPP_BUMP_LINE_CUR): New.

2000-04-10  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * invoke.texi (-fno-gnu-keywords): Remove classof, headof,
        __classof__, and __headof__ from the list of gnu keywords.
        (-ansi): Remove -foperator-names from list of implied options.
        Do not call it ANSI C++.
        (-foperator-names): Document as -fno-operator-names.

2000-04-09  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (timestamp): Delete.
        (del_HASHNODE): If type is T_MCONST, free value.cpval.
        (special_symbol): Remove unnecessary braces.  Remove
        T_VERSION.  Treat T_STDC like T_CONST unless
        STDC_0_IN_SYSTEM_HEADERS.  Render both __DATE__ and __TIME__
        when one is encountered, then convert them into T_MCONST
        nodes.
        * cppinit.c (builtin_array): version_string is T_MCONST.
        __STDC__ has a "1" in its cpval.  Don't have a terminator
        entry.  Clean up which entries are dumped.
        (initialize_builtins): Only __STDC__ gets the special
        -traditional treatment.  Count the length of builtin_array.
        Render version_string here.
        * cpphash.h: Remove T_VERSION.  Add T_MCONST.
        * cpplib.h (struct cpp_reader): Remove timebuf.

2000-04-09  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (pred): Update comparison_operator for the unordered
        operators.

        * config/i386/i386.c (no_comparison_operator): Disallow unordered
        operators.
        (fcmov_comparison_operator): Allow UNORDERED/ORDERED.
        (uno_comparison_operator): New.
        (put_condition_code): Handle UNORDERED/ORDERED.
        (unsigned_comparison): Likewise.
        (ix86_fp_compare_mode): Broken out of ix86_expand_fp_compare.
        (ix86_use_fcomi_compare, ix86_prepare_fp_compare_args): Likewise.
        (ix86_expand_fp_compare): Use them.  Take scratch as argument,
        update all callers.  Handle all 8 unordered operators.
        (ix86_expand_setcc): Lose the unordered argument, update all callers.
        (ix86_expand_branch): Likewise.  Don't fully expand fp branches.
        * config/i386/i386.h (PREDICATE_CODES): Update.
        * config/i386/i386-protos.h (ix86_expand_fp_compare): Declare.
        (ix86_expand_branch, ix86_expand_setcc): Update.
        * config/i386/i386.md (sunordered, sordered): New.
        (suneq, sunge, sungt, sunle, sunlt, sltgt): New.
        (bunordered, bordered): New.
        (buneq, bunge, bungt, bunle, bunlt, bltgt): New.
        (*fp_jcc_1, *fp_jcc_2, *fp_jcc_3, *fp_jcc_4): New.
        (*fp_jcc_5, *fp_jcc_6, and splitters): New.

2000-04-09  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.h (ARM_NAME_ENCODING_LENGTHS): Strip `*' too.

Sun Apr  9 15:16:14 EDT 2000  John Wehle  (john@feith.com)

        * i386.md (fix_truncsfhi2, fix_truncdfhi2,
        fix_truncxfhi2): New patterns.
        * i386.c (output_fix_trunc): Handle converting to HImode.

2000-04-08  Alex Samuel  <samuel@codesourcery.com>

        * ssa.c (convert_to_ssa): Eliminate dead code when calling
        life_analysis.
        (convert_from_ssa): Call compute_bb_for_insn before life_analysis.
        (for_each_successor_phi): Change parameter to basic_block.
        (coalesce_regs_in_successor_phi_nodes): Likewise.
        (coalesce_regs_in_copies): Likewise.
        (compute_coalesced_reg_partition): Use basic_block instead of index.
        * rtl.h (convert_to_ssa): Delete.
        (convert_from_ssa): Likewise.
        (successor_phi_fn): Likewise.
        (for_each_successor_phi): Likewise.
        (in_ssa_form): Likewise.
        * basic-block.h (convert_to_ssa): Moved from rtl.h.
        (convert_from_ssa): Likewise.
        (successor_phi_fn): Likewise.
        (in_ssa_form): Likewise.
        (for_each_successor_phi): Likewise.  Change parameter to basic_block.
        * flow.c (calculate_global_regs_live): Pass a basic_block to
        for_each_successor_phi.

2000-04-08  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_used_reg): Use reg_set_p to determine if a register
        was modified in the current insn.

2000-04-08  Richard Earnshaw (rearnsha@arm.com)

        * arm/thumb.md: Delete.
        * arm/thumb-protos.h: Delete.

2000-04-08  Richard Earnshaw (rearnsha@arm.com)

        Merge changes from merged-arm-thumb-backend-branch onto trunk.

        2000-04-08  Richard Earnshaw (rearnsha@arm.com)

        * Merge trunk code from tag merged-arm-thumb-backend-merge_20000408
        into branch.

        * arm.md (nop): Use the standard RTL expression.  Don't code as a
        define_expand.
        (*arm_nop, *thumb_nop): Delete.

        * arm.c (const_ok_for_arm): Don't use ANSI extensions for defining
        constants.  Use casts instead.
        (arm_gen_constant, arm_rtx_costs, arm_reload_in_hi, arm_reload_out_hi,
        output_multi_immediate, arm_poke_function_name): Likewise.
        * arm.h (ARM_LEGITIIMIZE_RELOAD_ADDRESS, ARM_SIGN_EXTEND,
        MASK_RETURN_ADDDR): Likewise.

        2000-03-31  Richard Earnshaw (rearnsha@arm.com)

        * Merge trunk code from tag merged-arm-thumb-backend-merge_20000325
        into branch.

        * arm.md (eh_epilogue): New function.
        * arm.h (struct machine_function): Move to here ...
        * arm.c: ... from here.
        (arm_output_epilogue): Support epilogues for __builtin_eh_return.
        (thumb_exit): Extra parameter eh_ofs.  All callers changed.
        Handle epilogues for __builtin_eh_return.  Make bit-fields unsigned.

        2000-03-30  Nick Clifton  <nickc@cygnus.com>

        * config/arm/semi.h (ASM_SPEC): Restore definition.
        (SUBTARGET_EXTRA_ASM_SPEC): Define if not already defined.

        * config/arm/elf.h (ASM_SPEC): Restore definition.
        (SUBTARGET_EXTRA_ASM_SPEC): Define if not already defined.

        * config/arm/arm.h (ASM_SPEC): Remove definition.
        (SUBTARGET_EXTRA_ASM_SPEC): Remove definition.

        2000-03-26  Bernd Schmidt <bernds@cygnus.co.uk>

        * config/arm/arm.c: Disable -fschedule-insns for Thumb.

        2000-03-24  Nick Clifton  <nickc@cygnus.com>

        Various formating tidyups, elimination of compile time
        warnings and synchronisation with internal sources:

        * config/arm/arm-protos.h (assemble_align): Add prototype.
        (gen_rotated_half_load): Rename to arm_gen_rotated_half_load.
        (gen_comapre_reg): Rename to arm_gen_compare_reg.
        (arm_return_addr_rtx): Rename to arm_return_addr.

        * config/arm/arm.c: Include except.h.
        Define shorter typenames for strict minipool_node and struct
        minipool_fix.
        (arm_return_in_memory): For WinCE return all structures <= 32 bits
        in memory.
        (gen_rotated_half_load): Rename to arm_gen_rotated_half_load.
        (gen_comapre_reg): Rename to arm_gen_compare_reg.

        * config/arm/arm.h (SUBTARGET_EXTRA_ASM_SPEC): Define if not
        already defined.
        (ASM_SPEC): Define if not already defined.
        (ASM_OUTPUT_DEF_FROM_DECLS): Define.

        * config/arm/arm.md: Rename references to gen_rotated_half_load to
        arm_gen_rotated_half_load, and references to gen_comapre_reg to
        arm_gen_compare_reg.
        (indirect_jump):  Only accept register operands.
        (load_indirect_jump): Keep this pattern since combine can generate
        it.

        * config/arm/coff.h: Include aout.h.
        (MULTILIB_DEFAULTS): Only define if not already defined.

        * config/arm/elf.h (ASM_OUTPUT_DEF_FROM_DECLS): Move definition
        into arm.h (so that COFF ports can support thumb based aliases).
        (ASM_SPEC): Move definition into arm.h

        * config/arm/linux-elf.h (SUBTARGET_EXTRA_ASM_SPEC): Remove
        redundant apcs spec.
        (ASM_SPEC): Move definition to arm.h

        * config/arm/semi.h (ASM_SPEC): Move definition to arm.h

        * config/arm/unknown-elf.h (ASM_OUTPUT_SECTION_NAME): Add support
        for entries in the .bss section

        2000-03-23  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (THUMB_INITIAL_ELIMINATION_OFFSET): Pass 0
        to thumb_far_jump_used_p.

        * config/arm/arm-protos.h (thumb_far_jump_used_p): Take a
        single integer parameter.

        * config/arm/arm.c (struct machine_function): Add two new
        fields, 'far_jump_used' and 'arg_pointer_live'.
        (thumb_far_jump_used_p): Once the decision has been made that
        far jumps might be used, always return true.
        If being called from the initial elimination offset macro then
        do not bother to perform the test if the arg pointer is not
        being used.
        (thumb_unexpand_epilogue): Pass 1 to thumb_far_jump_used_p().
        (output_thumb_prologue): Pass 1 to thumb_far_jump_used_p().

        2000-03-23  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (output_return_instruction): Handle more cases where we can
        return from a function with an ldr instruction.
        (arm_output_epilogue): Likewise.

        * arm.c (thumb_expand_prologue): Don't clobber the frame pointer
        if we need to push a large stack frame and there are no callee-saved
        registers.

        * arm.c (arm_debugger_arg_offset): An offset of 0 is also valid
        in ARM code if the frame pointer has been eliminated.

        * arm.md (epilogue, *epilogue_insns, consttable_*, align_4): Renumber
        unspec_volatile arguments to avoid duplicates.
        (consttable_1, consttable_2): Fixes for big-endian mode.

        * arm.md (all ARM-mode load insns): Add neg_pool_range attribute
        as appropriate.

        Re-write constant pool code.
        * arm.c (minipool_node, minipool_fix): New types.
        (minifix): Delete type.
        (arm_add_minipool_constant): Delete.
        (arm_compute_minipool_offsets, arm_find_barrier,
        arm_find_minipool_constant, fixup_compare, sort_fixups): Likewise.
        (get_jump_table_size): Now returns HOST_WIDE_INT.
        (move_minipool_fix_forward_ref, add_minipool_forward_ref): New
        functions.
        (move_minipool_fix_backward_ref, add_minipool_backward_ref): Likewise.
        (assign_minipool_offsets, arm_print_value): Likewise.
        (dump_minipool): Rewrite.
        (arm_barrier_cost): New function.
        (create_fix_barrier): New function.
        (push_minipool_barrier): New function.
        (push_minipool_fix): Record additional information about the fixup
        required.
        (note_invalid_constants): Remove push for (UNSPEC 3).  Don't
        check the mode of what needs fixing.
        (arm_reorg): Rewrite.

        2000-03-08  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.md (indirect_jump): Force constant addresses into
        a register.

        2000-03-01  Bernd Schmidt <bernds@cygnus.co.uk>

        * config/arm/arm.md: Add splitter to turn SF moves into SI moves.

        2000-02-24  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (thumb_expand_prologue): Make sure that stack
        adjust is word aligned.
        (thumb_expand_epilogue): Make sure that stack adjust is word
        aligned.

        * config/arm/elf.h (ASM_FILE_START): Fix type of version string.

        2000-02-24  Bernd Schmidt <bernds@cygnus.com>

        * config/arm/arm.h (THUMB_GO_IF_LEGITIMATE_ADDRESS): Allow frame
        pointer relative addresses.

        2000-02-10  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (find_barrier): Find the last barrier within the allowed
        range.

        2000-02-09  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm-protos.h: Replace PROTO with PARAMS.

        2000-02-09  Nick Clifton  <nickc@cygnus.com>

        * config/arm/linux-elf.h (FUNCTION_PROFILER): Rename to
        ARM_FUNCTION_PROFILER.

        * config/arm/netbsd.h (FUNCTION_PROFILER): Rename to
        ARM_FUNCTION_PROFILER.

        * config/arm/linux-oldld.h: Imported from mainline sources.

        2000-02-07  Nick Clifton  <nickc@cygnus.com>

        * config/arm/lib1funcs.asm: Merge in thumb functions from
        lib1thumb.asm.

        * config/arm/lib1thumb.asm: Delete.

        2000-02-04  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Sychronised with current Red hat local
        sources.
        * config/arm/arm.h: Ditto.
        * config/arm/arm-protos.h: Ditto.

        2000-02-02  Bernd Schmidt  <bernds@cygnus.co.uk>

        * arm.c (soft_df_operand): Reject SUBREGs containing a constant.

        * arm.c (arm_gen_movstrqi): Generate halfword stores rather than two
        byte stores.

        2000-02-02  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_exit): Additional fix for same bug.

        * config/arm/arm.md (epilogue): Fix rtl checking abort because
        (return) was emited using an emit_insn() call.

        2000-01-31  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (output_thumb_prologue): Fix bug generating
        thumb stack frame.
        (thumb_exit): Move frame pointer back into hard frame pointer
        register if backtracing is being used.

        2000-01-13  Richard Earnshaw (rearnsha@arm.com)

        * Merge trunk code from tag merged-arm-thumb-backend-merge_20000113
        into branch.

        1999-12-15  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/arm.md (neg_pool_offset): Provide default for new
        attribute.
        (arm_movsi_insn): Add neg_pool_offset attribute.
        * config/arm/arm.c (arm_find_barrier): Replace arg FIX with an
        rtx for the insn that starts the scan and an unsigned long for its
        address.  Add MIN_OFFSET and PINSERTED args.  All callers changed.
        Change scan to ignore insns before MIN_OFFSET.  Store size of inserted
        instructions in *PINSERTED.
        (struct minipool_fixup): Add MIN_ADDRESS elt.
        (sort_fixups): Compute it.
        (arm_reorg): Changes to support inserting pools before the insn to be
        fixed up.

        1999-12-08  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/elf.h (MULTILIB_DEFAULTS): Add "marm".
        * config/arm/linux-elf.h (MULTILIB_DEFAULTS): Add "marm".
        * config/arm/coff.h (MULTILIB_DEFAULTS): Add "marm".

        Wed Nov  3 10:04:07 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/semi.h (TARGET_VERSION): Do not define if already
        defined.
        (TARGET_DEFAULT): Do not define if already defined.

        Tue Nov  2 10:37:25 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.md (anddi3): Allow disjoint source operands.
        (iordi3): Allow disjoint source operands.
        (xordi3): Allow disjoint source operands.
        (negdi2): Permit construction for ARM and Thumb.
        (arm_negdi2): Renamed version of old negdi2 pattern.
        (thumb_negdi2): New pattern: Only permit non-overlapping
        source and destination.

        Fri Oct 29 18:52:38 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (thumb_expand_prologue): Emit a USE of the
        scratch low register so that it will not be deleted.

        Fri Oct 29 15:23:48 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/pe.h (ARM_PE): Define.

        * config/arm/arm.c (arm_valid_machine_decl_attribute): Allow
        interfacearm attribute if this is a PE toolchain.
        (output_return_instruction): Do not emit anything if the function
        has the naked attribute set.
        (is_called_in_ARM_mode): If the function has the interfacearm
        attribute then return true.
        (thumb_expand_prologue): Do not generate a prologue for naked
        functions.
        (thumb_expand_epilogue): Do not generate an epilogie for a naked
        function.
        (output_thumb_prologue): Do not bother if the function is naked.
        Strip PE encoding from function name before emitting.

        Thu Oct 28 11:05:13 1999  Richard Earnshaw <rearnsha@arm.com>

        * arm.md (pic_load_addr): Fix constraints.

        * arm.md (casesi_insn): Fix mis-applied patch.

        * arm.md ("core" function unit): Add rules for single- and
        multi-cycle insns.
        (All TARGET_THUMB patterns): Add "type" attribute information
        where needed.
        * arm.c (arm_adjust_cost): Reduce the cost of a data dependency if
        the following insn is a CALL.

        * arm.c (thumb_expand_epilogue): Add a use of the adjusted stack
        pointer.
        * arm.h (CONDITIONAL_REGISTER_USAGE): Nail down the
        ARM_HARD_FRAME_POINTER_REGNUM when TARGET_APCS_FRAME.
        (FRAME_POINTER_REQUIRED): Only check TARGET_APCS_FRAME if TARGET_ARM.

        Wed Oct 27 14:40:48 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/linux-gas.h: oops - this file was missed out when the
        branch was created...

        Tue Oct 26 17:07:38 1999  Richard Earnshaw <rearnsha@arm.com>

        * thumb.c: Deleted.  Move contents to ...
        * arm.c: ... here.
        * t-arm-aout, t-arm-coff, t-arm-elf, t-linux, t-netbsd, t-semi: Remove
        rule for thumb.o
        * configure.in (arm*-*-*): Remove thumb.o from extra_objs list.
        * configure: Regen.

        * arm-protos.h: Use RTX_CODE and tidy up long lines.  Don't
        declare a prototype for asm_output_align();

        * arm.c (thumb_condition_code): Delete.
        (arm_print_operand): Always use arm_condition_code array.

        * arm.c (thumb_return_addr_rtx): Delete.
        (arm_save_machine_status, arm_restore_machine_status): Delete.
        (arm_init_machine_status, arm_mark_machine_status): New functions.
        (arm_init_expanders): Update accordingly.
        (arm_return_addr): Renamed from arm_return_addr_rtx.  Rewrite.
        (thumb_expand_prologue): Delete code referencing thumb_return_addr_rtx.
        * arm.h (RETURN_ADDR_RTX): Call arm_return_addr().

        Tue Oct 26 13:24:16 1999  Nick Clifton  <nickc@cygnus.com>

        * configure.in : Fix arm-*-aout target to use new t-arm-aout
        script.
        * config/arm/t-arm-aout: New file: Makefile script for arm-*-aout
        targets.

        Tue Oct 26 11:27:12 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (output_thumb_prologue): Fix bug creating
        stack backtrace structure.

        * config/arm/arm-protos.h: Add prototypes for functions defined in
        arm/pe.h.

        * config/arm/arm.c (arm_override_options): Fix selection of
        attributes of default processor.

        * config/arm/coff.h: Delete needless #include.

        * config/arm/pe.c: Delete unused code.

        * config/arm/pe.h (CPP_DEFINES): Delete
        (SUBTARGET_CPP_SPEC): Define.
        (ASM_DECLARE_FUNCTION_NAME): Use ARM_DECLARE_FUNCTION_NAME.

        * config/arm/t-pe: Add -DInhibit_libc to allof libgcc.a to build.

        Mon Oct 25 15:42:09 1999  Richard Earnshaw (rearnsha@arm.com)

        * arm.h (TARGET_APCS_FRAME): Renamed from TARGET_APCS -- all uses
        updated.
        (CAN_DEBUG_WITHOUT_FP): Define.
        (FIXED_REGISTERS): Make r11 call-saved.
        (CALL_USED_REGISTERS): Likewise.
        (CONDITIONAL_REGISTER_USAGE): Fix r11 if TARGET_APCS_FRAME.
        (FRAME_POINTER_REQUIRED): Correct logic for determining when a
        frame-pointer is required.
        (TARGET_DEFAULT): Make default setting include ARM_FLAG_APCS_FRAME.
        * arm.c (arm_override_options): Warn about -mno-apcs-frame and -g
        if the target normally needs a stack frame in non-leaf functions.
        (use_return_insn): Correct logic for determining when a return
        instruction can be used.
        (output_return_instruction): Handle the frame-pointer register as
        a normal register when not TARGET_APCS_FRAME.
        (arm_output_prologue): Likewise.
        (arm_output_epilogue): Likewise.
        (output_func_epilogue): Likewise.
        (arm_expand_prologue): Likewise.
        * netbsd.h semi.h (TARGET_DEFAULT): Add ARM_FLAG_APCS_FRAME.

        * arm.c (use_return_insn): No need to check floating point regs if
        TARGET_SOFT_FLOAT.
        (arm_find_minipool_constant): Correct typo; use GET_CODE to get
        the code of value stored in the minipool array.
        (arm_add_minipool_constant): Likewise.

2000-04-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * basic-block.h (conflict_graph_enum_fn): K&R fix.

2000-04-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tree.c (tree_expr_nonnegative_p): New function.

        * tree.h (tree_expr_nonnegative_p): Declare.

        * c-typeck.c (build_binary_op): Call `tree_expr_nonnegative_p' to
        elide some sign_compare warnings.
        (build_conditional_expr): Likewise.

Sat Apr  8 00:21:51 EDT 2000  John Wehle  (john@feith.com)

        * i386.md (ashrsi3, ashrhi3, ashrqi3): Fix typo.

        * i386.md (floathisf2, floathidf2, floathixf2): New patterns.
        * i386.c (print_operand): Use the proper suffix for a 387 HImode
        operand.  Abort if a 387 operand has an unsupported size.

2000-04-08  Neil Booth  <NeilB@earthling.net>

        * cppexp.c (parse_charconst): Null does not end character
        constants.
        * cppinit.c (ISTABLE): Null character handled as whitespace.
        * cpplex.c (null_warning):  new function.
        (skip_string): Emit warning if nulls encountered.
        (_cpp_skip_hspace): Emit warning if nulls encountered.
        (_cpp_lex_token): Emit warning if nulls encountered.  Drop
        them.
        * cpp.texi: Update.

2000-04-07  Richard Henderson  <rth@cygnus.com>

        * flow.c (loop_depth): Remove.
        (reg_next_use, cc0_live, mem_set_list): Replace with ...
        (struct propagate_block_info): New.
        (life_analysis): Don't allocate reg_next_use.
        (propagate_block_delete_insn): Break out of propagate_block.
        Use flow_delete_insn to unlink rather than use NOTE_INSN_DELETED.
        (propagate_block_delete_libcall): Likewise.
        (propagate_block): Create a propagate_block_info struct to pass
        to subroutines.  Allocate one not two temporary regsets.  Don't
        clobber memory for const calls.  Look for clobbers in
        CALL_INSN_FUNCTION_USAGE.
        (mark_set_regs): Recognize COND_EXEC.
        (mark_set_reg): Break out of mark_set_1.
        (mark_used_reg): Break out of mark_used_regs.
        (mark_used_regs): Recognize COND_EXEC.
        (insn_dead_p): Use propagate_block_info struct.
        (libcall_dead_p, invalidate_mems_from_autoinc): Likewise.
        (find_auto_inc, try_pre_increment_1): Likewise.
        (print_rtl_with_bb): Dump regs live at end too.
        (count_reg_sets_1): Pass in loop_depth.
        (count_reg_sets, count_reg_references): Likewise.
        (recompute_reg_usage): Provide it.

2000-04-07  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (conflict.o): Depend on $(RTL_H) and $(BASIC_BLOCK_H)
        not the raw files.

2000-04-07  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (do_elif): Skip the rest of the line if we're
        not going to bother evaluating it.
        (skip_if_group): Clear pfile->only_seen_white.  Reorder loop
        to avoid pointless calls to the lexer.

Fri Apr  7 11:50:54 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c: Delete stdio.h and ctype.h includes.

2000-04-07  Jason Merrill  <jason@casey.cygnus.com>

        * calls.c (expand_call): emit_queue if we're trying a sibcall.

2000-04-07  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/t-linux64 (tcrtbeginS.o, tcrtendS.o): Remove.

2000-04-06  Geoff Keating  <geoffk@cygnus.com>

        * Makefile.in: Build crtbeginS and crtendS like crtbegin and
        crtend so they can be multilibbed.
        (STAGESTUFF): Remove s-crt and s-crtS.

2000-04-07  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (alpha_emit_conditional_move): Fail
        if we discover we need a pseudo and no_new_pseudos is true.
        * config/alpha/alpha.md (ne:DI insn): New.
        (trunctfsf2, sne): Emit NE instead of non-canonical LTU.

2000-04-07  Richard Henderson  <rth@cygnus.com>

        * rtl.def (COND_EXEC): New.
        * rtl.h (COND_EXEC_TEST, COND_EXEC_CODE): New.
        * tm.texi (MAX_CONDITIONAL_EXECUTE): Document.

        * genconfig.c (have_cond_arith_flag): Remove.
        (have_cond_exec_flag): New.
        (walk_insn_part): Detect COND_EXEC, not arithmetic in IF_THEN_ELSE.
        (main): Print HAVE_conditional_execution.

        * haifa-sched.c (haifa_classify_insn): Recognize COND_EXEC.
        (sched_analyze_insn, print_pattern): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        * rtlanal.c (reg_referenced_p): Likewise.
        (note_stores, dead_or_set_regno_p): Likewise.
        (reg_overlap_mentioned_p): Rewrite to use a switch.

        * ggc.h (struct rtx_def): Forward declare.

        * print-rtl.c (debug_rtx_range): New.
        * rtl.h (debug_rtx_range): Declare.

        * varray.h (VARRAY_ACTIVE_SIZE, VARRAY_POP_ALL): New.

        * gcse.c (gcse_main): Don't rebuild the CFG here.
        (delete_null_pointer_checks): Likewise.
        * ssa.c (convert_to_ssa): Likewise.
        * toplev.c (rest_of_compilation): Do it here instead.  Combine
        sequential calls to TIMEVAR.  Consistently use `insns' instead of
        `get_insns()'.  Always split insns after reload when optimizing.

        * basic-block.h (merge_blocks_nomove): Declare.
        (tidy_fallthru_edge): Declare.
        * flow.c (merge_blocks_nomove): Document as merging into previous
        blocks.  Remove cruft from between blocks; remove all edges out of A.
        (tidy_fallthru_edge): Export.

2000-04-06  Alex Samuel  <samuel@codesourcery.com>

        * ssa.c (compute_conservative_reg_partition): Declare with
        void arguments.
        * toplev.c (clean_dump_file): Remove previously-deleted function
        inadvertantly merged back in.
        * conflict.c (conflict_graph_add): Use a single call to
        htab_find_slot to look up and insert.

2000-04-06  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (*): Rename _last_insn to last_insn.
        (make_insn_sequence): Set the position of the peephole2 C test
        to be at the last insn.

2000-04-06  Richard Henderson  <rth@cygnus.com>

        * flow.c (compute_flow_dominators): Free worklist.

2000-04-06  Michael Matz  <matzmich@cs.tu-berlin.de>

        * flow.c (compute_flow_dominators): Process blocks FIFO not LIFO.

2000-04-06  Alex Samuel  <samuel@codesourcery.com>

        * rtl.h (INSN_P): New macro.
        (successor_phi_fn): New typedef.
        (for_each_successor_phi): New prototype.
        (in_ssa_form): New variable.
        (PHI_NODE_P): Likewise.
        * flow.c (calculate_global_regs_live): Add to new_live_at_end from
        phi nodes in successors.
        (mark_used_regs): Add PHI case.
        (set_phi_alternative_reg): New function.
        (life_analysis): Assert that dead code elimination is not selected
        when in SSA form.
        * toplev.c (to_ssa_time): New variable.
        (from_ssa_time): Likewise.
        (compile_file): Zero to_ssa_time and from_ssa_time.
        Print time to convert to and from SSA.
        (rest_of_compilation): Time convert_to_ssa and convert_from_ssa.
        (print_time): Compute percent fraction as integer.
        * ssa.c (PHI_NODE_P): Moved to rtl.h.
        (convert_to_ssa): Check if we're already in SSA.
        Don't eliminate dead code in life_analysis.
        Rerun flow and life analysis at bottom.
        (eliminate_phi): Use canonical regnos when adding nodes.
        (mark_reg_in_phi): New function.
        (mark_phi_and_copy_regs): Likewise.
        (convert_from_ssa): Rerun life analysis at top.
        Use coalesced partition.
        Check for removing a phi node at the end of the block.
        (compute_coalesced_reg_partition): New function.
        (coalesce_regs_in_copies): Likewise.
        (coalesce_reg_in_phi): Likewise.
        (coalesce_regs_in_sucessor_phi_nodes): Likewise.
        (for_each_successor_phi): Likewise.
        (rename_context): New struct.
        (rename_block): Use a rename_context with rename_insn_1.  When
        renaming sets of a subreg, emit a copy of the entire reg first.
        (rename_insn_1): Treat data as a rename_context *.  Save current
        insn in set_data.
        (rename_set_data): Add field set_insn.
        * Makefile.in (HASHTAB_H): Move up in file.
        (OBSTACK_H): New macro.
        (collect2.o): Use OBSTACK_H in dependencies.
        (sdbout.o): Likewise.
        (emit-rtl.o): Likewise.
        (simplify-rtx.o): Likewise.
        (fix-header.o): Likewise.
        (OBJS): Add conflict.o.
        (conflict.o): New rule.
        * basic-block.h: Include partition.h.
        (conflict_graph): New typedef.
        (conflict_graph_enum_fn): Likewise.
        (conflict_graph_new): New prototype.
        (conflict_graph_delete): Likewise.
        (conflict_graph_add): Likewise.
        (conflict_graph_conflict_p): Likewise.
        (conflict_graph_enum): Likewise.
        (conflict_graph_merge_regs): Likewise.
        (conflict_graph_print): Likewise.
        (conflict_graph_compute): Likewise.
        * conflict.c: New file.

2000-04-06  Jason Merrill  <jason@yorick.cygnus.com>

        * tlink.c (read_repo_files): Don't look for .rpo info for
        linker flags.

Thu Apr  6 20:39:26 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (STRUCT_VALUE, RETURN_IN_MEMORY): Define.

Thu Apr  6 19:34:08 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * config/sh/lib1funcs.asm (___udivsi3_i4):
        ( __SH4_SINGLE__ / __SH4_SINGLE_ONLY__ variant): value for fpscr
        only depends on FMOVD_WORKS.

Thu Apr  6 19:11:47 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * config/sh/lib1funcs.asm (___udivsi3_i4): When using fmovd,
        make double constant 8-byte aligned.

2000-04-06  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (movtf_insn_sp32, movtf_insn_vis_sp32,
        movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_hq_vis_sp64,
        movtf_no_e_insn_sp64): Accept loading 0.0 into GENERAL_REGS.
        (movtf_insn_sp64, movtf_insn_vis_sp64): Likewise.
        Accept storing GENERAL_REGS into offsetable memory.
        * config/sparc/sparc.h (PREFERRED_RELOAD_CLASS): Don't allow
        building a TFmode constant other than 0.0L into GENERAL_REGS.

2000-04-06  Clinton Popetz  <cpopetz@cygnus.com>

        * regrename.c (regrename_optimize): Handle no REG_ALLOC_ORDER.

2000-04-06  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (CPP_IS_MACRO_BUFFER, FORWARD, PEEKC): Delete.
        (macro_cleanup): No need to cast pbuf->macro.
        (collect_expansion): Use _cpp_get_define_token.  Goto done if
        it returns VSPACE.  Remove check for trailing space after
        CPP_COMMENT.
        (_cpp_create_definition): Don't diddle flags here.  Return
        directly on error.
        (unsafe_chars): Handle c1 being EOF.
        (push_macro_expansion): Use unsafe_chars for both accidental-paste
        checks.  Don't push the buffer till after we're done with
        them.
        * cpplex.c (PEEKBUF, GETBUF, FORWARDBUF): New.
        (PEEKN, FORWARD, GETC, PEEKC): Use them.
        (cpp_push_buffer): Don't set new->alimit.  Set new->mark
        appropriately.
        (_cpp_parse_assertion): Don't NUL terminate.
        (_cpp_lex_token): Fix -traditional macro handling.  Don't skip
        hspace before calling _cpp_parse_assertion.  Remove all sets
        of only_seen_white. Treat '\f' as hspace.  Don't do anything
        special with '\n' here.
        (maybe_macroexpand): Handle T_EMPTY hash entries without
        pushing a buffer at all.
        (cpp_get_token): Handle clearing only_seen_white here.  Handle
        incrementing the line number here.  Clear
        potential_control_macro as well as only_seen_white, if
        appropriate.
        (cpp_get_non_space_token): Don't eat CPP_POP tokens.
        (_cpp_get_define_token): New function, basically like
        _cpp_get_directive_token was but doesn't eat horizontal space.
        Don't do anything with only_seen_white here.
        (_cpp_get_directive_token): Just call _cpp_get_define_token
        repeatedly till it returns non-hspace.

        * cpplib.c (PEEKN, FORWARD, GETC, PEEKC): Delete.
        (conditional_skip, skip_if_group): Return int.
        (DIRECTIVE_TABLE): Change origin of all conditional directives
        to "COND".
        (TRAD_DIRECT_P): New macro.
        (_cpp_handle_directive): Use _cpp_get_directive_token.  Issue
        an error for a bogus directive, unless -lang-asm.  Use
        TRAD_DIRECT_P. Loop calling handler functions till one returns
        zero.
        (get_macro_name): Don't diddle flags here.
        (do_define): Diddle flags here.  Use _cpp_get_directive_token.
        Create T_EMPTY nodes for #define macro /* nothing */.
        (do_undef): Don't copy the name.  Use _cpp_get_directive_token.
        Use hp->name when calling pass_thru_directive.
        (do_if, do_else, do_elif, do_ifdef, do_ifndef, conditional_skip):
        Return the result of conditional_skip and/or skip_if_group.
        Don't call _cpp_output_line_command.
        (consider_directive_while_skipping): Use _cpp_get_directive_token.
        Issue -Wtraditional warnings as appropriate.  Don't complain
        about unrecognized directives.  If we are to stop skipping,
        return the number of the directive that ended the skip.
        (skip_if_group): Use _cpp_get_directive_token.  Turn off macro
        expansion and line commands while skipping.  Return the result
        of consider_directive_while_skipping, if nonzero.
        (do_endif): Just set potential_control_macro here.
        (validate_else): Use _cpp_get_directive_token.
        (do_assert, do_unassert): Don't save pointers into the
        token_buffer across calls to the lexer.  Use
        _cpp_get_directive_token.

        * cpplib.h (cpp_buffer): Remove alimit and colno.  Make mark a
        pointer, not an offset.  Replace 'data', which was a generic
        pointer, with 'macro', which points to a struct hashnode.
        (cpp_reader): Add 'potential_control_macro' pointer.
        * cpphash.h (T_UNUSED): Replace with T_EMPTY.
        (CPP_BUF_GET, CPP_FORWARD): Delete.
        (CPP_IN_COLUMN_1, ADJACENT_TO_MARK): New macros.
        (CPP_IS_MACRO_BUFFER, CPP_SET_BUF_MARK, CPP_GOTO_BUF_MARK,
        ACTIVE_MARK_P): Update.
        (_cpp_get_define_token): New internal function.
        * cppfiles.c (read_include_file): Don't set fp->alimit or fp->colno.

2000-04-05   Benjamin Kosnik  <bkoz@cygnus.com>

        * configure.in: And here.
        * configure: Regenerate.
        * acconfig.h: Add ENABLE_STD_NAMESPACE to set flag_honor_std if
        --enable-libstdcxx-v3 is passed at configure time.
        * config.h.in: Regenerate.

2000-04-05  Mark Mitchell  <mark@codesourcery.com>

        * final.c (final): Use xcalloc to allocate line_note_exists.
        * function.c (free_after_compilation): Free the temp_slots.
        (assign_stack_temp_for_type): Use xmalloc to allocate temp_slots.
        (combine_temp_slot): Free temp_slots when they get combined.
        (purge_addressof): Fix typo in comment.
        * stmt.c (mark_goto_fixup): Mark the fixup itself.
        (expand_fixup): Allocate the fixup with ggc_alloc_obj.

        * ggc.h: Include varray.h.
        (ggc_pending_trees): Declare.
        (ggc_mark_tree_children): Remove declaration.
        (ggc_mark_tree): Just push unmarked trees on ggc_pending_trees.
        * ggc-common.c (ggc_pending_trees): New variable.
        (ggc_mark_roots): Call ggc_mark_trees.
        (ggc_mark_tree_children): Rename to ggc_mark_trees.  Process all
        the ggc_pending_trees.
        * Makefile.in (GGC_H): New variable.  Use it throughout in place
        of ggc.h.

Thu Apr  6 00:30:50 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (FUNCTION_ARG_PARTIAL_NREGS): Accomodate an unsigned
        GET_MODE_SIZE.

Wed Apr  5 23:17:10 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (sh_insn_length_adjustment): New function.
        * sh-protos.h (sh_insn_length_adjustment): Declare.
        * sh.h (ADJUST_INSN_LENGTH): Use it.

Wed Apr  5 12:35:18 2000  Hans-Peter Nilsson  <hp@axis.com>

        * optabs.c (emit_libcall_block): Remove spurious REG_EQUAL notes
        from the insn where REG_RETVAL is added.
        (emit_no_conflict_block): Ditto.

        * md.texi (Standard Names): Clarify when movX is needed.

        * combine.c (simplify_comparison) [MINUS]: Do not replace
        all (op (minus A B) 0) with (op A B).

Wed Apr  5 18:03:31 2000  Toshiyasu Morita  (toshi.morita@sega.com)
                          J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (block_lump_real_i4): Add missing clobber of T_REG
        (block_lump_real): Likewise.

2000-04-05  Chris Demetriou  <cgd@netbsd.org>

        * mips.h (MASK_DEBUG_A, MASK_DEBUG_B, MASK_DEBUG_C): Zero the
        remaining non-zero debugging masks.

Wed Apr  5 09:44:07 2000  Jeffrey A Law  (law@cygnus.com)

        * basic-block.h (verify_flow_info): Declare.
        (flow_loop_outside_edge_p): Declare.
        * flow.c (verify_flow_info): Remove declaration.
        (clear_log_links, flow_loop_outside_edge_p): Likewise.

Wed Apr  5 09:34:26 2000  Philippe De Muyter <phdm@macqel.be>

        * m68k/m68k-protos.h (finalize_pic): Turn prototype off using `#if 0',
        not C++ comments.

2000-04-05  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (snedi_zero+1, neg_snedi_zero+1,
        snedi_zero_trunc+1, seqdi_zero+1, neg_seqdi_zero+1,
        seqdi_zero_trunc+1): Allow splits only if registers are
        different.

2000-04-04  Ulrich Drepper  <drepper@cygnus.com>

        * acconfig.h: Add HAVE_GAS_HIDDEN.
        * config.in: Regenerated.
        * configure.in: Add test for .hidden pseudo-op in gas.
        * configure: Regenerated.
        * crtstuff.c: Include auto-host.h.
        Emit additional .hidden pseudo-op for __dso_handle if the
        assembler knows about it.

2000-04-04  Philippe De Muyter  <phdm@macqel.be>

        * cpphash.c (_cpp_free_definition): Test argnames, not nargs >= 0,
        before freeing argnames.
        * cpplib.c (do_ifndef): Cast return value of xstrdup.

2000-04-05  Michael Meissner  <meissner@redhat.com>

        * config/rs6000/rs6000.c (print_operand): Patch from Jonathan
        Walton <jonboy@gordian.com> to make memory references with update
        work wtih -mregnames.

2000-04-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * regrename.c (regno_first_use_in): Wrap prototype in PARAMS.
        (regrename_optimize): Rename variables `def_uses' and
        `ext_basic_blocks' to avoid conflicts with similarly named
        typedefs in traditional C.

        * calls.c (initialize_argument_information): Fix typo in previous
        change.

2000-04-04  Richard Henderson  <rth@cygnus.com>

        * regrename.c (consider_available): Test fixed_regs not
        PIC_OFFSET_TABLE_REGNUM.

2000-04-04  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/t-ppccomm (EXTRA_MULTILIB_PARTS): Add crtbegin,
        crtend.
        (CRTSTUFF_T_CFLAGS_S): Delete definition.
        * config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Always use crtbegin.
        (ENDFILE_LINUX_SPEC): Always use crtend.
        * configure.in (powerpc-*-linux-gnulibc1): Don't define extra_parts.
        (powerpc-*-linux-gnu): Likewise.
        * configure: Regenerate.

        * config/rs6000/eabi.h: Don't include sysv4.h.
        (MULTILIB_DEFAULTS): Don't define.
        * config/rs6000/eabiaix.h: Don't include eabi.h.
        * config/rs6000/eabile.h: Delete.
        * config/rs6000/eabilesim.h: Delete.
        * config/rs6000/eabisim.h: Don't include eabi.h.
        * config/rs6000/linux.h: Don't include sysv4.h.
        (JUMP_TABLES_IN_TEXT_SECTION): Don't redefine.
        (MULTILIB_DEFAULTS): Don't redefine.
        * config/rs6000/rtems.h: Don't include eabi.h.
        * config/rs6000/sol2.h: Don't include sysv4le.h.
        * config/rs6000/sysv4le.h: Don't include sysv4.h.
        * config/rs6000/t-ppc: Delete.
        * config/rs6000/t-ppcgas: Correct comment.
        * config/rs6000/t-ppcos: Correct comment.  Don't build
        multilibs for -fPIC, rather use -fPIC -mstrict-align
        as default.
        * config/rs6000/t-ppc: Delete.
        * config/rs6000/vxppc.h: Don't include sysv4.h.
        * config/rs6000/vxppcle.h: Delete.
        * configure.in: Use multiple header files for p2pc ELF targets
        powerpc-eabiaix, powerpc-eabisim, powerpc-rtems, powerpcle-eabi,
        powerpcle-eabisim, powerpc-elf, powerpcle-elf, powerpc-linux-gnu,
        powerpc-linux-gnulibc1, powerpc-sysv, powerpcle-sysv,
        powerpc-vxworks, powerpcle-vxworks.  Assume GAS functionality is
        always available for these platforms.

2000-04-04  Richard Henderson  <rth@cygnus.com>

        * calls.c (try_to_integrate): Initialize reg_parm_stack_space.

2000-04-04  Stan Cox  <scox@cygnus.com>

        * Makefile.in: Add rules for regrename.o
        * regrename.c: New file.
        * rtl.h (regrename_optimize): Add prototype.
        * toplev.c (rename_registers_dump, flag_rename_registers): New variables
        (compile_file, decode_d_option): Add support for -frename-registers.
        (rest_of_compilation): Call regrename_optimize.
        * config/ia64/ia64.h (HARD_REGNO_RENAME_OK, RENAME_EXTENDED_BLOCKS):
        New macros.

2000-04-04  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * Makefile (gccbug): New target.
        (doc): Depend on it.
        * gcc.texi (Bugs): Link subnodes.
        (gccbug): New node.
        * gccbug.in (CATEGORIES): Remove gc, host, profiling, libgcc.
        Document severities, priorities, and classes in bug form.

2000-04-04  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (trigraph_map, speccase): Combine into single
        table, chartab.
        (NORMAL, NONTRI): New macros.
        (_cpp_read_and_prescan): Change to use unified table.  Use
        is_hspace to test for whitespace.

        * dbxout.c (CONTIN): If it doesn't have to do anything, give it a
        definition that doesn't provoke the "empty body in an
        if-statement" warning.

2000-04-04  Clinton Popetz  <cpopetz@cygnus.com>

        * builtins.c (expand_builtin_strlen): Force the source to
        be a memory address.

2000-04-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpplib.c (D): Adjust to call CONCAT2 macro without whitespace.

Tue Apr  4 19:17:20 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (ECF_MALLOC, ECF_MAY_BE_ALLOCA, ECF_RETURNS_TWICE,
         ECF_LONGJMP, ECF_FORK_OR_EXEC):  New constants.
        (ECF_IS_CONST): Rename to ECF_CONST.
        (special_function_p): Make static, change interface.
        (flags_from_decl_or_type, try_to_integrate): Break out from ...
        (expand_call) ... here; convert number of variables to flags.
        (emit_library_call_vlue_1): Likewise.
        (setjmp_call_p): New function.
        (initialize_argument_information): Accepts flags as argument;
        return flags.
        (precompute_arguments): Likewise.
        * tree.h (special_function_p): Remove.
        (setjmp_call_p): Add prototype.

2000-04-04  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.h (RTX_OK_FOR_OFFSET_P): Leave minor margin
        so that addresses are offsetable by up to 16 bytes.
        (GO_IF_LEGITIMATE_ADDRESS): Don't allow REG+REG addresses for
        non-optimizing TARGET_ARCH32 in DF or DI modes because it is not
        offsetable.

        * config/sparc/sparc.md (movdi_insn_sp64_novis): New pattern.
        (movdi_insn_sp64_vis): Renamed from movdi_insn_sp64.
        (movsf): Don't force any constant to memory if target is integer
        hard register.
        Move fp_zero_operand check below the const0_rtx check.
        (movtf): Likewise. Also allow fp_zero_operand for stores into
        memory.
        (movdf): Likewise. Also allow fp_zero_operand for stores into
        memory and into integer hard registers.
        (clear_df, clear_dfp, movdf_const_intreg_sp32,
        movdf_const_intreg_sp64): Remove.
        (movdf_insn_sp32, movdf_no_e_insn_sp32): Redo constraints and
        conditions.
        (movdf_no_e_insn_v9_sp32): New pattern.
        (movdf_insn_v9only): Remove.
        (movdf_insn_v9only_novis, movdf_insn_v9only_vis): New patterns.
        (movdf_insn_sp64): Remove.
        (movdf_insn_sp64_novis, movdf_insn_sp64_vis): New patterns.
        (movdf_no_e_insn_sp64): Allow storing 0.0 into memory.
        (following splits): Rewrite conditions. Add two new splits
        for storing 0.0 into memory and registers.
        (clear_tf, clear_tf+1, clear_tfp, clear_tfp+1): Remove.
        (movtf_insn_sp32): Redo constraints and conditions.
        (movtf_insn_vis_sp32): New pattern.
        (movtf_no_e_insn_sp32): Redo constraints and conditions.
        (movtf_insn_hq_sp64): Likewise.
        (movtf_insn_hq_vis_sp64): New pattern.
        (movtf_insn_sp64): Redo constraints and conditions.
        (movtf_insn_vis_sp64): New pattern.
        (movtf_no_e_insn_sp64): Redo constraints and conditions.
        (movtf_no_e_insn_sp64+1): New split for storing 0.0L into registers
        or memory.
        * config/sparc/sparc.c (sparc_override_options): Assume v9 if either
        -mvis or -m64 to take down the number of various reload patterns.

Tue Apr  4 00:41:53 2000  Jeffrey A Law  (law@cygnus.com)

        * pa/pa-64.h: New file.
        * pa/pa64-regs.h: New file.
        * pa/pa64-start.h: New file.
        * pa/t-pa64: New file.
        * pa/xm-pa64hpux.h: New file.

2000-04-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (output_restore_regs): Prototype.
        (sparc_emit_float_lib_cmp): Constification.

        * emit-rtl.c (const_int_htab_hash, const_int_htab_eq): Likewise.

        * reload1.c (reload_cse_delete_noop_set, reload_cse_simplify):
        Prototype.

        * simplify-rtx.c (entry_and_rtx_equal_p): Constification.
        (get_value_hash, hash_rtx): Likewise.

        * ssa.c (compute_conservative_reg_partition): Prototype.

        * tree.c (mark_hash_entry): Prototype.

2000-04-03  Zack Weinberg  <zack@wolery.cumb.org>

        * bb-reorder.c (verify_insn_chain): #ifdef out unless ENABLE_CHECKING.
        * i386.h (FUNCTION_ARG_REGNO_P): Remove unnecessary test for N >= 0.
        * i386.md (call_value, call_value_pop): Remove unused variable 'addr'.

        * gcc.c (C specs): Pass -fno-show-column to the preprocessor.
        * objc/lang-specs.h: Likewise.

2000-04-03  Neil Booth  <NeilB@earthling.net>

        * cppexp.c: wrap long lines.  New macros CPP_ICE, SYNTAX_ERROR
        and SYNTAX_ERROR2. Replace `' in messages with ''.
        (op_to_str): Make re-entrant.
        (_cpp_parse_expr): Implement new error macros. Use | rather
        than || to logically or 2 boolean integers.  Simply expression
        checking we have a left operand iff needed.

2000-04-03  Nick Clifton  <nickc@cygnus.com>

        * Makefile.in (diagnostic.o): Depend upon diagnostic.c

2000-04-03  Philip Blundell  <philb@gnu.org>

        * config/arm/linux-elf.h (SUBTARGET_EXTRA_LINK_SPEC): Fix typos.

2000-04-03  Felix Lee  <flee@cygnus.com>

        * fixinc/server.c (find_shell): New function.  Avoid $SHELL.
        (run_shell): Use it.

2000-04-03  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * Makefile.in (stmp-int-hdrs): Make include subdir here...
        (stmp-fixproto): ...rather than here.

Mon Apr  3 00:50:06 2000  Jason Eckhardt <jle@cygnus.com>

        * pa.c (print_operand): Compute 'base' only inside the code paths
        that use it.

2000-04-03  Geoffrey Keating  <geoffk@cygnus.com>

        * stor-layout.c (byte_from_pos): Use TRUNC_DIV_EXPR rather than
        CEIL_DIV_EXPR.

2000-04-03  Philipp Thomas  <pthomas@suse.de>

        * i386.h (TARGET_SWITCHES): Remove bogus empty strings, fix typo.

Mon Apr  3 00:02:59 2000  Brad Lucier <lucier@math.purdue.edu>

        * Makefile.in (alias.o): Depend on $(TREE_H).

2000-04-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c (cpp_start_read): Turn off -Wtraditional if
        processing C++.
        * cpplib.c (_cpp_handle_directive): Improve warnings for
        traditional C and indented directives.

        * enquire.c, gsyslimits.h, limity.h, config/convex/fixinc.convex,
        fixinc/fixinc.irix, fixinc/fixinc.sco, fixinc/fixinc.wrap,
        fixinc/inclhack.def: Indent the # of #include_next one space.
        * cp/rtti.c: Un-indent #if and #endif.

        * cppexp.c (_cpp_parse_expr): If lex returns '#', it's a
        syntax error, but an error has already been printed.
        * cpplex.c (_cpp_parse_assertion): Give a more specific error
        message when called with nothing remaining on the line.
        (_cpp_lex_token): If _cpp_parse_assertion fails, return an
        OTHER token, not an ASSERTION.
        * cpplib.c (do_assert): When we create a 'base' node, clear
        its aschain pointer.

2000-04-02  Neil Booth <NeilB@earthling.net>

        * cppexp.c:  New typedef op_t.  struct operation and struct
        token updated to use it.
        (op_to_str): New function.
        (_cpp_parse_expr): Error messages modified to use op_to_str.

2000-04-02  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_function_arg): Check for void_type_node
        before checking MUST_PASS_IN_STACK.

2000-04-02  Neil Booth <NeilB@earthling.net>

        * cppexp.c:  New FINISHED dummy token.  Combine operator initial
        flags and initial priority into a single constant.  New
        EQUALITY macro.  New operator flag SHORT_CIRCUIT.
        (_parse_cpp_expr): Implement new constants.  Take left operand
        checks out of reduction loop.  Handle SHORT_CIRCUIT.  End of
        parse indicated by reducing FINISHED token.  Remove new lines
        from cpp_error messages.

2000-04-01  Mark Mitchell  <mark@codesourcery.com>

        * emit-rtl.c (gen_rtx_CONST_INT): Create cached CONST_INTs on the
        permanent obstack.

2000-04-01  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c: Include symcat.h.  Add 'origin' field to struct
        directive.  Add origin values to DIRECTIVE_TABLE.  Generate
        the strings and function names on the fly.  Take the #sccs
        entry out of the table if SCCS_DIRECTIVE is not defined.
        (_cpp_handle_directive): Decide if the # was at the beginning
        of the line here.  Issue -pedantic warnings for extended
        directives here.  Warn about K+R directives with the #
        indented, and C89/extended directives with the # not indented,
        here.
        (do_import, do_include_next, do_warning, do_ident, do_sccs,
        do_assert, do_unassert): Don't issue pedantic warning here.

        * cpphash.h: Add CPP_WTRADITIONAL macro.
        * cpplib.h (struct cpp_options): Rename warn_stringify to
        warn_traditional; update comments.
        * cppinit.c (handle_option): Set warn_traditional not
        warn_stringify.
        * cpphash.c: Replace CPP_OPTION (pfile, warn_stringify) with
        CPP_WTRADITIONAL (pfile).
        * cpplex.c (_cpp_lex_token): Don't decide if directives should
        be ignored in -traditional mode here.

        * cpplex.c: Copy ISTABLE macros from cppinit.c, and adapt them
        to initialize speccase[] and trigraph_map[].  Delete all
        references to pfile->input_speccase.  Always treat '?' as a
        special character.  Remove table-initialization code from
        _cpp_init_input_buffer.

        * cpplib.h (struct cpp_reader): Remove input_speccase field.
        * cppinit.c (cpp_cleanup): Don't free input_speccase.

2000-04-01  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (STAGESTUFF): Wildcard all debugging dumps at once.
        (mostlyclean): Likewise.

        * toplev.c (rtl_dump, jump_opt_dump, etc): Remove.
        (struct dump_file_info, enum dump_file_index, dump_file): New.
        (open_dump_file): Take a dump_file_index not a suffix, and a decl
        not a string.  Clean out file if we havn't yet done so.  Do nothing
        if the dump isn't enabled.
        (close_dump_file): Do nothing if the dump isn't open.  Dump
        graph data if requested.
        (dump_rtl, clean_dump_file): Remove.
        (compile_file): Don't clean the dump files.  Only finalize .bp dump
        if flag_test_coverage or flag_branch_probabilities.  Only finalize
        .combine dump if optimizing.  Iterate over dump_file to finalize the
        graph dumps.
        (rest_of_compilation): Update for open_dump_file/close_dump_file.
        Convert all uses of dump_rtl.
        (decode_d_option): Iterate over dump_file to implement 'a' and to
        locate pass-specific dumps.

2000-04-01  Neil Booth <NeilB@earthling.net>

        * cppexp.c: Redefine priority constants.
        (_cpp_parse_expr): Replace left and right priority scheme with
        single priority logic.  Move LOGICAL to same place as COMPARE.
        Remove bogus check for multiple unary +/- operators.

2000-04-01  Neil Booth <NeilB@earthling.net>

        * cppexp.c: (_cpp_parse_expr): Numerical constants are pushed
        within the switch statement.  Binary operations break out of
        the switch naturally.  '(' tokens handled by forcing
        immediate shift.  ')' handled by forcing immediate reduce to
        the previous '('.  New error messages.

2000-03-31  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (print_operand): Don't use %l for 'low
        part', it's already in use.  Use %K instead.  Add a return at the
        end of what is now %K.
        * config/rs6000/rs6000.md (elf_low): Use %K instead of %l.

Sat Apr  1 02:05:29 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * builtins.c  (expand_builtin_apply):  Pass proper parameters to
        allocate_dynamic_stack_space.
        * calls.c (emit_call_1):  Do not adjust stack pointer for SIB,
        update stack_pointer_delta; do not update arg_size_so_far.
        (compute_argument_block_size): Use stack_delta instead of
        stack_pointer_pending and arg_size_so_far.
        (expand_call): Add sanity checking for stack_pointer_delta;
        save and restore stack_pointer_delta for SIB, use
        stack_pointer_delta for alignment; do not update arg_space_so_far.
        (emit_library_call_value): Use stack_pointer_delta for alignment.
        (store_one_arg): Do not update arg_space_so_far.
        * explow.c (adjust_stack, anti_adjust_stack): Update
        stack_pointer_delta.
        (allocate_dynamic_stack_space): Add sanity checking for
        stack_pointer_delta.
        * expr.c (init_expr, clear_pending_stack_adjust): Clear
        stack_pointer_delta.
        (emit_push_insn): Update stack_pointer_delta.
        * function.h (struct expr_status): Add x_stack_pointer_delta;
        remove x_arg_space_so_far.
        (arg_space_so_far): Remove.
        (stack_pointer_delta): New macro.

2000-03-31  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h: Merge struct cpp_options into struct cpp_reader.
        Reorder struct cpp_options and struct cpp_reader for better
        packing.  Replace CPP_OPTIONS macro with CPP_OPTION which
        takes two args.  Change all 'char' flags to 'unsigned char'.
        Move show_column flag into struct cpp_options.  Don't
        prototype cpp_options_init.
        * cpphash.h, cpperror.c, cppexp.c, cppfiles.c, cpphash.c,
        cppinit.c, cpplex.c, cpplib.c:
        Replace CPP_OPTIONS (pfile)->whatever with
        CPP_OPTION (pfile, whatever), and likewise for
        opts = CPP_OPTIONS (pfile); ... opts->whatever;

        * cppinit.c (merge_include_chains): Take a cpp_reader *.
        Extract CPP_OPTION (pfile, pending) and work with that
        directly.
        (cpp_options_init): Delete.
        (cpp_reader_init): Turn on on-by-default options here.
        Allocate the pending structure here.
        (cl_options, enum opt_code): Define these from the same table,
        kept in a large macro.  Add -fshow-column and -fno-show-column
        options.

        * cpperror.c (v_message): If show_column is off, don't print
        the column number.

        * cppmain.c: Update for new interface.
        * fix-header.c: Likewise.

2000-03-30  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/t-aix43 (AR_FLAGS_FOR_TARGET): Adjust for new
        definition.
        * Makefile.in (AR_FLAGS_FOR_TARGET): Is now the flags that
        are passed to any invocation of AR_FOR_TARGET.
        (AR_CREATE_FOR_TARGET): New macro.
        (AR_EXTRACT_FOR_TARGET): New macro.
        (ORDINARY_FLAGS_TO_PASS): Add AR_CREATE_FOR_TARGET,
        AR_EXTRACT_FOR_TARGET.
        (many places): Use AR_CREATE_FOR_TARGET, AR_EXTRACT_FOR_TARGET
        in place of `$(AR_FOR_TARGET) $(AR_FLAGS_FOR_TARGET)' and
        `$(AR_FOR_TARGET) x'.  Pass AR_CREATE_FOR_TARGET and
        AR_EXTRACT_FOR_TARGET to sub-makes.

2000-03-31  Neil Booth <NeilB@earthling.net>

        * cppexp.c: Delete SKIP_OPERAND.  Correct priority
        PAREN_INNER_PRIO.
        (_cpp_parse_expr): Check for multiple unary +/- operators.
        Correct priorities of ':' and '?'.  Treat ')' as having a
        value.  Ensure conditional expression is not void.

2000-03-31  Mark Mitchell  <mark@codesourcery.com>

        * alias.c (canon_rtx): Make it global.
        (rtx_equal_for_memref_p): CONST_INT equality is now pointer
        equality.
        * cse.c (struct table_elt): Add canon_exp.
        (insert): Clear it.
        (invalidate): Canonicalize expressions only once.
        * rtl.h (canon_rtx): Declare.

2000-03-30  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (emit-rtl.o): Depend on HASHTAB_H.
        * alias.c (reg_known_value): Add comments.
        (init_alias_analysis): Likewise.
        * cse.c (exp_equiv_p): CONST_INTs are equal iff they have the same
        address.
        (cse_basic_block): Fix typo in comment.
        * emit-rtl.c: Include hashtab.h.
        (const_int_htab): New variable.
        (const_int_htab_hash): New function.
        (const_int_htab_eq): Likewise.
        (rtx_htab_mark_1): Likewise.
        (rtx_htab_mark): Likewise.
        (gen_rtx_CONST_INT): Cache all CONST_INTs.
        (unshare_all_rtx): Fix formatting.
        (init_emit_once): Initialize const_int_htab.
        * rtl.c (rtx_equal_p): CONST_INTs are equal iff they have the same
        address.
        * rtl.texi: Document the fact that all CONST_INTs with the same
        value are shared.

2000-03-30  Richard Henderson  <rth@cygnus.com>

        * alpha.h (FUNCTION_BOUNDARY): Reduce to 128 bits.

2000-03-30  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in: Comment out --enable-c-cpplib stanza.
        * configure: Regenerate.

Thu Mar 30 06:32:51 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor): Properly compute displacement and
        alignment when offset is variable.

        * expmed.c (store_bit_field, store_fixed_bit_field): Fix more
        cases of alignment in bytes.

Thu Mar 30 13:30:40 2000  Jeffrey A Law  (law@cygnus.com)

        * c-parse.in (cast_expr): Move change from March 21 into c-parse.in
        since it is used to generate c-parse.y.
        * objc-parse.c, objc-parse.y: Regenerated.

        * function.c (expand_function_end): Pass alignment argument to
        emit_block_move in bits, not bytes.

Thu Mar 30 06:32:51 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (move_by_pieces_ninsns): Fix one more missing align
        correction.

        * expmed.c (store_fixed_bit_field): STRUCT_ALIGN is in bits.

        * calls.c (expand_call): Pass bit alignment to mark_reg_pointer.
        * explow.c (memory_address, allocate_dynamic_stack_space): Likewise.
        * function.c (assign_parms): Likewise.
        * integrate.c (expand_inline_function): Likewise.
        * stmt.c (expand_decl): Likewise.
        (copy_rtx_and_substitute): Likewise.
        * expr.c (expand_expr, expand_expr_unaligned): Likewise.
        (clear_by_pieces): Fix error in last change.
        * emit-rtl.c (init_emit): Set known registers alignment in bits.
        * function.h (regno_pointer_align): Now unsigned.
        * config/arm/arm.c (alignable_memory_operand): REGNO_POINTER_ALIGN
        is in bits.
        * config/i386/i386.c (aligned_operand): Likewise.
        * config/sparc/sparc.c (mem_min_alignment): Likewise.
        * config/alpha/alpha.c (aligned_memory_operand): Likewise.
        (unaligned_memory_operand): Likewise.
        (alpha_expand_block_move, alpha_expand_block_clear): Likewise.
        Also make alignments and sizes unsigned and some whitespace cleanup.
        (alpha_va_start): Do nothing if VALIST's type is error_mark_node.

        * builtins.c (get_pointer_alignment): Use host_integerp & tree_low_cst.
        (expand_builtin_apply): Pass alignment to emit_block_move in bits.
        (expand_builtin_memcpy, expand_builtin_va_copy): Likewise.
        (expand_builtin_memset): Likewise, but to clear_storage.
        * calls.c (save_fixed_argument_area): Likewise, to move_by_pieces.
        (restore_fixed_argument_area): Likewise.
        (store_unaligned_arguments_into_pseudos): Likewise, to store_bit_field.
        (load_register_parameters): Likewise, to emit_group_load.
        (expand_call): Likewise, to emit_group_store and emit_block_move.
        (emit_library_call_value_1): Likewise, to emit_block_move.
        (store_one_arg): Likewise, and to emit_push_insn.
        * expmed.c (extract_bit_field): Alignment is in bits, not bytes.
        (extract_fixed_bit_field, extract_split_bit_field): Likewise.
        * expr.c (move_by_pieces, move_by_pieces_ninsns): Likewise.
        (emit_block_move, emit_group_load, emit_group_store): Likewise.
        (clear_by_pieces, clear_storage, emit_push_insn): Likewise.
        (expand_assigment, store_expr, store_constructor_field): Likewise.
        (expand_expr_unaligned, do_jump, do_compare_and_jump): Likewise.
        (store_constructor, store_field, get_inner_reference): Likewise.
        Use host_integerp and tree_low_cst; sizes and positions HOST_WIDE_INT.
        (expand_expr, case COMPONENT_REF): Likewise.
        (copy_blkmode_from_regs): Use UNSIGNED_HOST_WIDE_INT for sizes
        and positions; reindent code.
        * expr.h (emit_cmp_insn, emit_cmp_and_jump_insns): Alignment unsigned.
        * function.c (purge_addressof_1): Pass bit align to store_bit_field.
        (assign_parms): Likewise to emit_group_store.
        * optabs.c (prepare_cmp_insn): Alignment is in bits.
        (emit_cmp_and_jump_insns, emit_cmp_insn): Likewise, and also unsigned.
        * stmt.c (expand_value_return): Pass align in bits to emit_group_load.
        (expand_return): Likewise to {extract,store}_bit_field.
        * stor-layout.c (get_mode_alignment): Minor cleanup.
        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Align is in bits.
        * config/sh/sh.h (MOVE_BY_PIECES_P): Likewise.

2000-03-29  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h: Undo effects of previous delta:
        (ASM_SPEC): Do not define.
        (SUBTARGET_EXTRA_ASM_SPEC): Do not define.

        * config/arm/linux-elf.h: (SUBTARGET_EXTRA_ASM_SPEC) Fix
        typo.

2000-03-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c (cpp_start_read): Call initialize_dependency_output
        only after reading in the primary source file.

2000-03-29  Geoff Keating  <geoffk@cygnus.com>

        * c-common.c (c_common_nodes_and_builtins): The first parameter to
        __builtin_va_start and __builtin_va_copy is now either a 'va_list'
        or a reference to a va_list.
        * builtins.c (stabilize_va_list): Simplify now we don't have to
        work around C array address decay.
        * c-typeck.c (convert_for_assignment): Handle assignment to
        a reference parameter by taking the address of the RHS.
        * ginclude/stdarg.h (va_start): Don't take address of first parameter.
        (va_copy): Likewise.
        (__va_copy): Likewise.
        * ginclude/varargs.h (va_start): Likewise.
        (__va_copy): Likewise.

Wed Mar 29 15:44:53 2000  Jeffrey A Law  (law@cygnus.com)

        * i386/djgpp.h: Remove extraneous "+".

        * stmt.c (stmt_loop_nest_empty): Fix thinko in last change.

        * calls.c (expand_call): Fix typo in last change.

2000-03-29  Jason Merrill  <jason@casey.cygnus.com>

        * tree.c (unsave_expr_1): Don't mess with a TARGET_EXPR that hasn't
        been expanded.

Wed Mar 29 15:39:10 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (bit_from_pos, byte_from_pos): New functions.
        (pos_from_byte, pos_from_bit, normalize_offset): Likewise.
        (normalize_rli, rli_size_so_far, rli_size_unit_so_far): Use them.
        * tree.c (bit_position, byte_position): Likewise.
        * tree.h: Declare new functions.

2000-03-29  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Minor formatting changes/
        * config/arm/arm.h (SUBTARGET_EXTRA_ASM_SPEC): Define if not
        already defined.
        (ASM_SPEC): Define if not already defined.

2000-03-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (cpp_read_file): Don't pass zero-length string to
        _cpp_calc_hash.

2000-03-29  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (gen_enumeration_type_die): If enum has a negative
        value, don't output it as unsigned.

Wed Mar 29 10:53:49 2000  Jeffrey A Law  (law@cygnus.com)

        * stmt.c (stmt_loop_nest_empty): Allow cfun->stmt to be NULL.

2000-03-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (c_common_nodes_and_builtins): Don't special case
        cplus_mode when declaring builtin bzero/bcmp, always avoid
        prototype arguments.

2000-03-29  Bruce Korb  <bkorb@gnu.org>

        * fixinc/mkfixinc.sh: Initially set the variable "fixincludes"
        to a non-file

Wed Mar 29 15:08:01 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        Convert ACCUMULATE_OUTGOING_ARGS to an expression.
        * calls.c (PUSH_ARGS_REVERSED) Change to expression.
        (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default value.
        (struct arg_data): Remove #ifdef ACCUMULATE_OUTGOING_ARGS.
        (save_fixed_argument_area, restore_fixed_argument_area):
        conditionize by #ifdef REG_PARM_STACK_SPACE only.
        (emit_call): Change #ifdefs on ACCUMULATE_OUTGOING_ARGS
        to conditions, handle RETURN_POPS_ARGS on ACCUMULATE_OUTGOING_ARGS.
        (precompute_register_parameters): Avoid #ifdefs on
        ACCUMULATE_OUTGOING_ARGS and PUSH_ARGS_REVERSED.
        (stire_one_args): Likewise.
        (expand_call): Likewise; conditionize PUSH_ROUNDING code by PUSH_ARGS.
        (emit_library_call_value_1): Likewise.
        (compute_argument_block_size): Align to STACK_BOUNDARY only for
        ACCUMULATE_OUTGOING_ARGS.
        * combine.c (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default
        value.
        (nonzero_bits): Conditionize PUSH_ROUNDING code by USE_PUSH.
        (use_crosses_set_p): Likewise.
        * all targets (ACCUMULATE_OUTGOING_ARGS define): Change to
        #define ACCUMULATE_OUTGOING_ARGS 1.
        * i386.c (ix86_compute_frame_size): Handle ACCUMULATE_OUTGOING_ARGS
        frames.
        * i386.h (MASK_NO_PUSH_ARGS, MASK_ACCUMULATE_OUTGOING_ARGS): New
        constants.
        (TARGET_PUSH_ARGS, TARGET_ACCUMULATE_OUTGOING_ARGS): New macros.
        (TARGET_SWITCHES): Add push-args, no-push-args,
        accumulate-outgoing-args and no-accumulate-outgoing-args.
        (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): New macro.
        * expr.c (ACCUMULATE_OUTGONG_ARGS, PUSH_ARGS): Provide default.
        (push_block): Avoid ifdefs on ACCUMULATE_OUTGONG_ARGS
        and PUSH_ROUNDING.
        (emit_push_insn): Likewise.
        * final.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
        (final_scan_insn): Avoid ifdefs on ACCUMULATE_OUTGOING_ARGS.
        * function.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
        (STACK_DYNAMIC_OFFSET): Define correctly for both
        ACCUMULATE_OUTGOING_ARGS and normal mode.
        * invoke.texi (-mpush_args, -maccumulate-outgoing-args): Document.
        * tm.texi (PUSH_ARGS): Document.
        (ACCUMULATE_OUTGOING_ARGS, PUSH_ROUNDING): Update documentation.

Wed Mar 29 11:51:13 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * flags.h (flag_optimize_sibling_calls): Declare.
        * calls.c (expand_call): Fail sibcall when
        !flag_optimize_sibling_calls
        * invoke.texi (flag_optimize_sibling_calls): Document.
        * toplev.c (flag_optimize_sibling_calls): New global variable.
        (f_options): Add flag_optimize_sibling_calls.
        (rest_of_compilation): Conditionize
        optimize_sibling_and_tail_recursive_calls by
        flag_optimize_sibling_calls.
        (main): Set flag_optimize_sibling_calls for -O2.
        * stmt.c (expand_return): Conditionize tail recursion by
        flag_optimize_sibling_calls.

2000-03-29  Richard Henderson  <rth@cygnus.com>

        * config/i386/att.h (LOCAL_LABEL_PREFIX): Define.
        (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL): Use it.

2000-03-29  Nathan Sidwell  <nathan@codesourcery.com>

        * except.c (add_eh_table_entry): Mark type_info's as referenced.

2000-03-29  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/rs6000/aix41.h (CPP_SPEC): Define _ANSI_C_SOURCE if -ansi
        is given.
        * config/rs6000/aix43.h (CPP_SPEC): Likewise.
        * config/rs6000/rs6000.h (CPP_SPEC): Moved to...
        * config/rs6000/aix.h: then modified likewise.

2000-03-28  Richard Henderson  <rth@cygnus.com>

        * rtl.h: Redistribute enum reg_note documentation.
        Kill trailing whitespace.
        * rtl.c (reg_note_name): Adjust to match enum reg_note tweeks.
        Kill trailing whitespace.

2000-03-28  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (hash_IHASH): Just return i->hash.
        (cpp_included): Set dummy.hash using _cpp_calc_hash.  Use
        htab_find_with_hash.
        (cpp_read_file): Likewise.
        (find_include_file): Likewise.  Properly initialize
        ih->nshort.  Share ih->name and ih->nshort if possible.
        * cpphash.c (_cpp_calc_hash): New function.
        (hash_HASHNODE): Just return h->hash.
        (_cpp_lookup): Set dummy.hash using _cpp_calc_hash.  Use
        htab_find_with_hash.
        * cpphash.h: Prototype _cpp_calc_hash.
        * cppinit.c (initialize_builtins): Provide a valid hash
        to _cpp_make_hashnode, using _cpp_calc_hash.

        * cpphash.c (collect_expansion): # is not a special character
        in object-like macros.  In -traditional mode, /**/ is not
        token paste at the beginning or end of the line.
        * cpplib.c (do_include, do_import, do_include_next): If
        parse_include fails, return immediately.

2000-03-28  Jason Merrill  <jason@casey.cygnus.com>

        * config/arm/arm.md (return peepholes): Update to reflect the new
        call insn patterns.
        * config/arm/arm.c (arm_volatile_func): Also check
        current_function_nothrow.
        (output_return_instruction, output_func_prologue): Use it.
        (arm_output_epilogue, arm_expand_prologue): Likewise.

2000-03-27  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (handle_braces): In {x*...} case, break out of loop if
        switch is found.

Tue Mar 28 11:55:48 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor): SIZE now signed.
        For EXPR_SIZE, don't evaluate size; just needed if constant.
        * fold-const.c (fold): Fix a number of cases when folded tree is
        wrong type.
        * function.c (flush_addressof): Reenable.
        * tree.h (flush_addressof): Likewise.
        * toplev.c (independent_decode_option): Look at strings_processed.
        * config/alpha/alpha.h (MINIMUM_ATOMIC_ALIGNMENT): Cast to unsigned.

Tue Mar 28 08:29:46 2000  Jan Hubicka  <jh@suse.cz>

        * sibcall.c (indentify_call_return_value): Find last call in the chain;
        Allow stack adjustment after function call.

        * regmove.c (struct csa_memlist): Make mem field rtx *.
        (record_one_stack_ref): Accept rtx * instead of rtx as parameter.
        (try_apply_stack_adjustment): Replace whole MEM rtx.
        (combine_stack_adjustments_for_block): Update calls
        to record_one_stack_ref.

2000-03-28  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (_cpp_read_and_prescan): Mark end of input buffer with
        '\\' rather than a null character, so nulls are not special.  Fix
        "\\\n" handling in end-of-buffer conditions.  Use trigraph map to
        speed trigraph conversion.
        (_cpp_init_input_buffer): Initialize trigraph map.

2000-03-27  Alan Modra  <alan@linuxcare.com.au>

        * config/i386/i386.c (output_387_binary_op): Correct intel
        mode assembly output, and add spaces after commas in AT&T
        output.  Correct Unixware assembler comment.  Document input
        constraints.  Comment fp operations.  Reduce profligate buffer
        size.  Remove extraneous abort.  Localize temp var.
        (SYSV386_COMPAT): Define.  Add !SYSV386_COMPAT code.
        (output_fix_trunc): Add spaces after commas in assembly output.

2000-03-27  Richard Henderson  <rth@cygnus.com>

        * i386-protos.h (ix86_match_ccmode): Declare.
        * i386.c (ix86_match_ccmode): New.
        (ix86_expand_fp_compare): Update for pattern renames.
        (ix86_expand_strlensi_unroll_1): Likewise.
        * i386.h (EXTRA_CC_MODES): Add CCZ.
        (SELECT_CC_MODE): Use it for EQ/NE zero.
        * i386.md (cmpsi_ccz_1): New.
        (cmpqi_ccz_1): New.
        (*testsi_ccz_1): New.
        (testqi_ccz_1): New.
        (cmpsi_ccno_1): Rename from cmpsi_0.
        (testsi_ccno_1): Rename from testsi_1.
        (testqi_ccno_1): Rename from testqi_1.
        (*testqi_ext_ccz_0): Rename from testqi_ext_0.
        (testqi_ext_ccno_0): Rename from *testqi_ext_1.
        (*cmphi_0): Use ix86_match_ccmode.
        (*cmpqi_ext_2, *addsi_2, *addhi_2, *addqi_2): Likewise.
        (*subsi_2, *subhi_2, *subqi_2, *testhi_1): Likewise.
        (*testqi_ext_1, *testqi_ext_2, *testqi_ext_3): Likewise.
        (*andsi_2, *andhi_2, *andqi_2, *andqi_ext_0_cc): Likewise.
        (*iorsi_2, *iorhi_2, *iorqi_2): Likewise.
        (*xorsi_2, *xorhi_2, *xorqi_cc_1): Likewise.
        (*one_cmplsi2_2, *one_cmplhi2_2, *one_cmplqi2_2): Likewise.
        (*ashlsi3_cmpno, *ashlhi3_cmpno, *ashlqi3_cmpno): Likewise.
        (*ashrsi3_cmpno, *ashrhi3_cmpno, *ashrqi3_cmpno): Likewise.
        (*lshrsi3_cmpno, *lshrhi3_cmpno, *lshrqi3_cmpno): Likewise.
        (appropriate peepholes): Likewise.
        (*cmphi_1, *cmpqi_ccno_1, *cmpqi_1): Star out name.
        (*subsi_3, *subhi_3, *subqi_3): Remove.
        (*negdi2_1+1 splitter): Use CCZ for neg patterns.
        (*negsi2_cmp, *neghi2_cmp, *negqi2_cmp): Remove.
        (*negsi2_cmpz): Rename from *negsi2_cmpno, use CCZ.
        (*neghi2_cmpz, *negqi2_cmpz): Similarly.
        (x86_shift_adj_1): Use CCZ.
        (*dbra_ge+1, *dbra_ge+2, ffssi2, ffssi_1): Likewise.

2000-03-27  Stan Cox  <scox@cygnus.com>

        * resource.h (mark_resource_type): New.
        * resource.c (find_dead_or_set_registers, mark_target_live_regs,
        find_free_register): Use mark_resource_type.
        (mark_set_resources): Change include_delayed_effects
        to mark_resource_type.
        * reorg.c (steal_delay_list_from_target, try_merge_delay_insns,
        redundant_insn, fill_simple_delay_slots, fill_slots_from_thread):
        Use mark_resource_type.

2000-03-27  Richard Henderson  <rth@cygnus.com>

        * i386.md (call_pop_0, call_value_pop_0): New.
        (call_pop_1): Remove constraint from unused arg.  Support sibcalls.
        (call_value_pop_1): Likewise.
        (call_0, call_value_0): New.
        (call_1, call_value_1): Remove constraint from unused arg.

2000-03-27  Nick Clifton  <nickc@cygnus.com>

        * invoke.texi (Spec Files): Document new spec % command created by
        Tom Tromey's recent patch.

2000-03-27  Jakub Jelinek  <jakub@redhat.com>

        * libgcc2.h (MIN_UNITS_PER_WORD): Define to UNITS_PER_WORD
        if not defined.

Mon Mar 27 06:04:22 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (expand_assignment): Fix typo in last change.

        * libgcc2.h: Use MIN_UNITS_PER_WORD, not UNITS_PER_WORD.

Sun Mar 26 20:15:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-convert.c (convert): Return if output or input type is ERROR_MARK.
        * c-decl.c (duplicate_decls): Only look at DECL_BUILT_IN_NONANSI
        and DECL_INLINE if FUNCTION_DECL.
        (pushdecl, redeclaration_error_message): Likewise, for DECL_INLINE.
        (store_parm_decls): Check for type of PARM_DECL being ERROR_MARK.
        Use DECL_WEAK, not DECL_RESULT, to flag for already seen.
        (combine_parm_decls): Likewise.
        * ggc-common.c (gcc_mark_tree_children, case 'd'): Use DECL_RESULT_FLD.
        * print-tree.c (print_node): Likewise.
        Only test DECL_PACKED, DECL_INLINE, DECL_BIT_FIELD, and
        DECL_TRANSPARENT_UNION on proper decl types.
        Properly handly DECL_INCOMING_RTL and DECL_SAVED_INSNS.
        * stor-layout.c (layout_decl): Only check DECL_PACKED and
        DECL_BIT_FIELD of FIELD_DECL.
        * tree.h (DECL_RESULT_FLD): New macro.

        * expr.c (expand_assignment): Add code to handle variable-sized
        BLKmode case.

2000-03-26  Richard Henderson  <rth@cygnus.com>

        * calls.c (expand_call): Pass parms not original exp to
        optimize_tail_recursion.  Mind return value instead of looking
        for a barrier.
        * stmt.c (optimize_tail_recursion): Take parameter list, not entire
        call_expr.  Move checks for call_expr and current_function_decl ...
        (expand_return): ... here.

2000-03-26  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (handle_braces): Recognize `%{<S}' construct.
        (SWITCH_OK, SWITCH_FALSE, SWITCH_IGNORE, SWITCH_LIVE): New
        defines.
        (process_command): Use them.
        (check_live_switch): Likewise.
        (give_switch): Skip ignored switches.

2000-03-26  Jan Hubicka  <jh@suse.cz>

        * jump.c (jump_optimize_1): Fix typo in elide optimizations
        for minimal jump pass test.

2000-03-26  Mark Mitchell  <mark@codesourcery.com>

        * integrate.c (function_cannot_inline_p): Do inline functions that
        return `void'.

Sun Mar 26 11:37:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (layout_type, set_sizetype): early_type_list is
        now a list of TREE_LIST entries, not types.
        * tree.c (build_common_tree_nodes_2): Eliminate dupliate type sets.

        * expmed.c (extract_bit_field): Ensure BITS_PER_WORD is signed in MAX.
        * config/arm/pe.c (arm_pe_return_in_memory): Use host_integerp and
        int_bit_position.
        * config/mips/mips.c (function_arg): Likewise; also remove cast
        and make variables unsigned or HOST_WIDE_INT and use tree_low_cst.
        (mips_function_value): Use int_byte_position and make HOST_WIDE_INT.
        * config/mips/abi64.h (SETUP_INCOMING_VARARGS): Offsets are unsigned.
        * config/mips/mips.h (BITS_PER_WORD, UNITS_PER_WORD): Cast to unsigned.
        (UNITS_PER_FPREG, INT_TYPE_SIZE, LONG_TYPE_SIZE): Likewise.
        (POINTER_SIZE, POINTER_BOUNDARY,PARM_BOUNDARY): Likewise.
        (GP_REG_P, FP_REG_P, MD_REG_P, ST_REG_P): Ensure subtraction signed.
        (struct mips_arg): arg_number, arg_words, fp_arg_words, and
        num_adjusts now unsigned.
        (FUNCTION_ARG_BOUNDARY): Remove unneeded cast.
        * config/sparc/sparc.c (struct function_arg_record_value_parms):
        NREGS now unsigned.
        (function_arg_record_value_1): STARTBITPOS arg now HOST_WIDE_INT
        as is BITPOS variable; use host_integerp and int_bit_position.
        (function_arg_record_value_2): Likewise.
        (function_arg_record_value_3): Arg BITPOS now HOST_WIDE_INT.
        Variable REGNO now unsigned.
        (function_arg_record_value): NREGS now unsigned.

2000-03-26  Bernd Schmidt  <bernds@cygnus.co.uk>

        * jump.c (mark_all_labels): Handle CALL_PLACEHOLDERs.

Sat Mar 25 09:12:10 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * Rework fields used to describe positions of bitfields and
        modify sizes to be unsigned and use HOST_WIDE_INT.
        * alias.c (reg_known_value_size): Now unsigned.
        * c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
        (really_start_incremental_init): Use bitsize_zero_node.
        (push_init_level, pop_init_level, output_init_element): Likewise.
        Use bitsize_unit_node and bitsize_one_node.
        (output_pending_init_elements, process_init_element): Likewise.
        * combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
        (make_extraction): Position and length HOST_WIDE_INT and unsigned
        HOST_WIDE_INT, respectively.
        (get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
        (num_sign_bit_copies): Returns unsigned.
        BITWIDTH now unsigned; rework arithmetic.
        Remove recursive call from arg to MAX.
        (combine_instructions, init_reg_last_arrays): NREGS now unsigned.
        (setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
        REGNO now unsigned.
        (set_nonzero_bit_and_sign_copies): NUM now unsigned.
        (find_split_point, expand_compound_operation, make_extraction): LEN
        now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
        (make_field_assignment): Likewise.
        (combine_simplify_rtx): Add cast.
        (expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
        (force_to_mode): WIDTH now unsigned; add cast.
        (if_then_else_cond): SIZE now unsigned.
        (nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
        (extended_count): Now returns unsigned.
        (simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
        Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
        (simplify_comparison): MODE_WIDTH now unsigned.
        (update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
        (mark_used_regs_combine): Likewise; rework arithmetic.
        (record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
        (record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
        (record_promoted_value): REGNO now unsigned.
        (get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
        (get_last_value): REGNO now unsigned.
        (use_crosses_set_p): REGNO and ENDREGNO now unsigned.
        (reg_dead_regno, reg_dead_endregno): Now unsigned.
        (remove_death): Arg REGNO now unsigned.
        (move_deaths):  REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
        (reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
        now unsigned.
        * convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
        * cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
        (struct cse_reg_info): REGNO now unsigned.
        (cached_regno): Now unsigned.
        (REGNO_QTY_VALID_P): Add cast.
        (make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
        (remove_invalid_regs): Likewise.
        (remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
        as are variables END and I.
        (get_cse_reg_info, insert): Likewise.
        (mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
        (canon_hash): Likewise.
        (insert_regs, lookup_for_remove): REGNO now unsigned.
        (invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
        New variable RN.
        * dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
        * dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
        * emit-rtl.c (subreg_realpart_p): Add cast.
        (operand_subword): Arg I is now unsigned as is var PARTWORDS.
        (operand_subword_force): Arg I is now unsigned.
        * except.c (eh_regs): Variable I is now unsigned.
        * explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
        * expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
        length is unsigned HOST_WIDE_INT; likewise for internal variables.
        (store_split_bit_field, extract_fixed_bit_field): Likewise.
        (extract_split_bit_field, store_bit_field, extract_bit_field):
        Likewise.
        * expr.c (store_constructor_fields, store_constructor, store_field):
        Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
        (expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
        (do_jump): Likewise.
        (move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
        MAX_SIZE is now unsigned.
        (emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
        (emit_group_store): Likewise.
        (emit_move_insn): I now unsigned.
        (store_constructor): Use host_integerp, tree_low_cst, and
        bitsize_unit_node.
        (get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
        Rework all calculations to use trees and new fields.
        * expr.h (promoted_input_arg): Regno now unsigned.
        (store_bit_field, extract_bit_field): Adjust types of pos and size.
        (mark_seen_cases): Arg is HOST_WIDE_INT.
        * flow.c (verify_wide_reg_1): REGNO now unsigned.
        * fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
        precisions and alignments are unsigned.
        (optimize_bit_field_compare, fold_truthop): Likewise.
        (int_const_binop): Adjust threshold for size_int_type_wide call.
        (fold_convert): Likewise.
        (size_int_type_wide): Make table larger and fix thinko that only
        had half of table used.
        (all_ones_mask_p, fold): Precisions are unsigned.
        * function.c (put_reg_info_stack): REGNO is unsigned.
        (instantiate_decl): Size is HOST_WIDE_INT.
        (instantiate_virtual_regs): I is unsigned.
        (assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
        (promoted_input_arg): REGNO is unsigned.
        * function.h (struct function): x_max_parm_reg is now unsigned.
        * gcse.c (max_gcse_regno): Now unsigned.
        (struct null_pointer_info): min_reg and max_reg now unsigned.
        (lookup_set, next_set): REGNO arg now unsigned.
        (compute_hash_table): REGNO and I now unsigned.
        (handle_avail_expr): regnum_for_replacing now unsigned.
        (cprop_insn): REGNO now unsigned.
        (delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
        * ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
        * global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
        * hard-reg-set.h (reg_class_size): Now unsigned.
        * integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
        * jump.c (mark_modified_reg): I now unsigned; add cast.
        (rtx_equal_for_thread_p): Add cast.
        * loop.c (max_reg_before_loop): Now unsigned.
        (struct_movable): REGNO now unsigned.
        (try_copy_prop): REGNO arg unsigned.
        (regs_match_p): XN and YN now unsigned.
        (consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
        (strength_reduce): Likewise; NREGS also unsigned.
        (first_increment_giv, last_increment_giv unsigned): Now unsigned.
        * loop.h (struct iv_class): REGNO now unsigned.
        (max_reg_before_loop, first_increment_giv, last_increment_giv):
        Now unsigned.
        * machmode.h (mode_size, mode_unit_size): Now unsigned.
        (mode_for_size, smallest_mode_for_size): Pass size as unsigned.
        * optabs.c (expand_binop): I and NWORDS now unsigned.
        (expand_unop): I now unsigned.
        * print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
        print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
        * real.c (significand_size): Now returns unsigned.
        * real.h (significand_size): Likewise.
        * regclass.c (reg_class_size): Now unsigned.
        (choose_hard_reg_mode): Both operands now unsigned.
        (record_reg_classes): REGNO and NR now unsigned.
        (reg_scan): NREGS now unsigned.
        (reg_scan_update): old_max_regno now unsigned.
        (reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
        * reload.c (find_valid_class): BEST_SIZE now unsigned.
        (find_dummy_reload): REGNO, NWORDS, and I now unsigned.
        (hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
        Likewise for variable R.
        (refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
        as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
        (find_equiv_reg): Add casts.
        (regno_clobbered_p): Arg REGNO now unsigned.
        * reload.h (struct reload): NREGS now unsigned.
        (refers_to_regno_for_reload_p): Regno args are unsigned.
        (regno_clobbered_p): Likewise.
        * reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
        (compute_use_by_pseudos): REGNO now unsigned.
        (find_reg): I and J now unsigned, new variable K, and change loop
        variables accordingly; THIS_NREGS now unsigned.
        (alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
        (spill_hard_reg): REGNO arg now unsigned; add casts.
        (forget_old_reloads_1): REGNO, NR, and I now unsigned.
        (mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
        (clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
        END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
        (reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
        (choose_reload_regs): MAX_GROUP_SIZE now unsigned.
        (emit_reload_insns): REGNO now unsigned.
        (reload_cse_move2add): Add cast.
        (move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
        and rework loop.
        * resource.c (mark_referenced_resources, mark_set_resources): New
        variable R; REGNO and LAST_REGNO now unsigned.
        (mark_target_live_regs): J and REGNO now unsigned.
        * rtl.c (mode_size, mode_unit_size): Now unsigned.
        * rtl.h (union rtunion_def): New field rtuint.
        (XCUINT): New macro.
        (ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
        (operand_subword, operand_subword_force): Word number is unsigned.
        (choose_hard_reg_mode): Operands are unsigned.
        (refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
        (find_regno_note, find_regno_fusage, replace_regs): Likewise.
        (regno_use_in, combine_instructions, remove_death): Likewise.
        (reg_scan, reg_scan_update): Likewise.
        (extended_count): Return is unsigned.
        * rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
        INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
        (reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
        (reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
        (reg_reg_last_1): FIRS and LAST now unsigned.
        (dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
        (dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
        now unsigned.
        (find_regno_note, regno_use_in): Arg REGNO now unsigned.
        (find_regno_fusage): Likewise; also var REGNOTE now unsigned.
        (find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
        (replace_regs): Arg NREGS now unsigned.
        * sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
        * simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
        (simplify_binary_operation): Likewise.
        (cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
        THIS_LAST now unsigned.
        (cselib_record_set): Add cast.
        * ssa.c (ssa_max_reg_num): Now unsigned.
        (rename_block): REGNO now unsigned.
        * stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
        sizes now unsigned.
        (all_cases_count): Just return -1 not -2.
        COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
        Rework tests to use trees whenever possible.
        Use host_integerp and tree_low_cst.
        (mark_seen_cases): COUNT arg now HOST_WIDE_INT;
        Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
        (check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
        * stor-layout.c (mode_for_size): SIZE arg now unsigned.
        (smallest_mode_for_size): Likewise.
        (layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
        KNOWN_ALIGN is now an alignment, so simplify code.
        Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
        (start_record_layout): Renamed from new_record_layout_info.
        Update to new fields.
        (debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
        New functions.
        (place_union_field): Renamed from layout_union_field.
        Update to use new fields in rli.
        (place_field): Renamed from layout_field.
        Major rewrite to use new fields in rli; pass alignment to layout_decl.
        (finalize_record_size): Rework to use new fields in rli and handle
        union.
        (compute_record_mode): Rework to simplify and to use new DECL fields.
        (finalize_type_size): Make rounding more consistent.
        (finish_union_layout): Deleted.
        (layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
        (layout_type, case RECORD_TYPE): Call new function names.
        (initialize_sizetypes): Set TYPE_IS_SIZETYPE.
        (set_sizetype): Set TYPE_IS_SIZETYPE earlier.
        (get_best_mode): UNIT is now unsigned; remove casts.
        * tree.c (bit_position): Compute from new fields.
        (byte_position, int_byte_position): New functions.
        (print_type_hash_statistics): Cast to remove warning.
        (build_range_type): Use host_integerp and tree_low_cst to try to hash.
        (build_index_type): Likewise; make subtype of sizetype.
        (build_index_2_type): Pass sizetype to build_range_type.
        (build_common_tree_nodes): Use size_int and bitsize_int to
        initialize nodes; add bitsize_{zero,one,unit}_node.
        * tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
        (DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
        (DECL_PACKED, DECL_BIT_FIELD): Likewise.
        (DECL_FIELD_BITPOS): Deleted.
        (DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
        (DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
        (DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
        (DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
        (DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
        (DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
        (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
        (DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
        (DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
        (DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
        (DECL_ALIGN): Adjust to new field in union.
        (DECL_OFFSET_ALIGN): New field.
        (DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
        (DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
        (union tree_decl): Add struct for both aligns.
        (enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
        (bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
        (struct record_layout_info): Rework fields to have offset
        alignment and byte and bit position.
        (start_record_layout, place_field): Renamed from old names.
        (rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
        (byte_position, int_byte_position): Likewise.
        (get_inner_reference): Change types of position and length.
        * unroll.c (unroll_loop): New variable R; use for some loops.
        MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
        (calculate_giv_inc): Arg REGNO now unsigned.
        (copy_loop_body): REGNO and SRC_REGNO now unsigned.
        * varasm.c (assemble_variable): Clean up handling of size using
        host_integerp and tree_low_cst.
        (decode_addr_const): Use byte, not bit, position.
        (output_constructor): bitpos and offsets are HOST_WIDE_INT;
        use tree_low_cst and int_bit_position.
        * objc/objc-act.c (build_ivar_list_initializer): Use byte_position.

Fri Mar 24 20:13:49 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (REORDER_MOVED_BLOCK_END): Removed.
        (reorder_block_def): New members eff_head and eff_end.
        (REORDER_BLOCK_EFF_HEAD, REORDER_BLOCK_EFF_END): New macros.
        (verify_insn_chain): New function.
        (skip_insns_between_block): Add code to skip deleted insns.
        Check for note before using.
        (chain_reorder_blocks): Replace calls to skip_insns_between_block
        with references to REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END.
        Check for note before using.
        (make_reorder_chain): Use INTVAL rather than XINT to get REG_BR_PROB.
        (fixup_reorder_chain): Restructure, clean up, defect removal.
        (reorder_basic_blocks): Remove last_insn and references to it.
        Moved insn chain verification code into a new function (see above).
        Delete defective code that sets last insn.
        Initialize REORDER_BLOCK_EFF_HEAD and REORDER_BLOCK_EFF_END for
        all blocks.

2000-03-25  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (CPP_SPEC): Remove erroneous space.

2000-03-24  Richard Henderson  <rth@cygnus.com>

        * tree.c (lang_safe_for_unsave): Remove.
        (unsafe_for_reeval): Transmute and rename from safe_for_unsave,
        allowing for two levels of unsafeness.  Remove lang hook.
        * tree.h: Update declarations.
        * calls.c (expand_call): Rename safe_for_reeval to try_tail_call.
        Create temporary VAR_DECLs to protect very unsafe_for_reeval trees.
        Always fail sibcalls when there are pending cleanups.

2000-03-24  Geoff Keating  <geoffk@cygnus.com>

        * flow.c (propagate_block): When we delete an ADDR_VEC,
        also delete the BARRIER following it if there is one.

2000-03-24  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_bzero): Convert `length' argument
        to sizetype.

2000-03-24  Jakub Jelinek  <jakub@redhat.com>

        * sibcall.c (skip_copy_to_return_value): Use OUTGOING_REGNO for
        comparison if regno's are equal.
        * calls.c (initialize_argument_informat): Add ecf_flags argument.
        Use FUNCTION_INCOMING_ARG if available and ECF_SIBCALL.
        (expand_call): Update caller.
        Avoid making a sibling call if argument size of the callee is larger
        than argument size of the caller.
        Call hard_function_value with outgoing set if in sibcall pass.
        Use FUNCTION_INCOMING_ARG if available and ECF_SIBCALL.

        * final.c (permitted_reg_in_leaf_functions, only_leaf_regs_used):
        Change LEAF_REGISTERS from an array initializer to actual array
        identifier. Move static global variable into the function.
        (leaf_function_p): Allow SIBLING_CALL_P calls even outside of
        sequences for leaf functions.
        * global.c (global_alloc): Likewise.
        * tm.texi (LEAF_REGISTERS): Update documentation.

        * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Remove the ugly
        TARGET_FLAT leaf disabling hack.
        (LEAF_REGISTERS): Changed from an array initializer to actual array
        identifier to avoid duplication and remove the above hack.
        (FUNCTION_OK_FOR_SIBCALL): Define.
        * config/sparc/sparc.md (sibcall): New attr type. Use it almost
        always like call attribute.
        (eligible_for_sibcall_delay): New attribute.
        (sibcall): New delay type.
        (sibcall, sibcall_value, sibcall_epilogue): New expands.
        (sibcall_symbolic_sp32, sibcall_symbolic_sp64,
        sibcall_value_symbolic_sp32, sibcall_value_symbolic_sp64): New insns.
        * config/sparc/sparc.c (sparc_leaf_regs): New array.
        (eligible_for_sibcall_delay, output_restore_regs, output_sibcall):
        New functions.
        (output_function_epilogue): Move part of the code into
        output_restore_regs.
        (ultra_code_from_mask, ultrasparc_sched_reorder): Handle
        TYPE_SIBCALL.
        * sparc-protos.h (output_sibcall, eligible_for_sibcall_delay): New
        prototypes.

        * config/sparc/sparc.h (REVERSIBLE_CC_MODE): Revert Jan, 25 change
        until infrastructure is finished.

Fri Mar 24 13:49:45 2000  Jeffrey A Law  (law@cygnus.com)

        * integrate.c (save_for_inline_nocopy): Clear in_nonparm_insns here.
        (save_parm_insns): Not here.

2000-03-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_bzero): New function.
        (expand_builtin): Handle bzero.

        * builtins.def: Add BUILT_IN_BZERO.

        * c-common.c (c_common_nodes_and_builtins): Provide builtin
        prototype & function for bzero.

2000-03-23  Michael Meissner  <meissner@redhat.com>

        * config/alpha/alpha.md (TF floating point insns): Undo 2000-03-21
        change adding TARGET_FP to the TF floating point insns, except for
        trunctfsf2, which generates direct calls to truncdfsf2.

2000-03-23  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.h (ARG_POINTER_CFA_OFFSET): New definition,
        try to protect against middle-end changes that break binary
        compatibility.
        (DWARF_FRAME_REGISTERS): New definition, likewise for backend.

2000-03-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (load_immed_address):  Add DP reg clobber.

Thu Mar 23 17:10:48 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * calls.c (expand_call): If TARGET is passed by reference and
        is readonly, write a CLOBBER.

2000-03-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin): Handle bcmp.

        * builtins.def: Add BUILT_IN_BCMP.

        * c-common.c (c_common_nodes_and_builtins): Provide builtin
        prototype & function for bcmp.

Thu Mar 23 11:34:39 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (rtx_needs_barrier, case UNSPEC): Move case 6...
        (rtx_needs_barrier, case UNSPEC_VOLATILE): to here.
        * config/ia64/ia64.md (pr_restore): Change UNSPEC to UNSPEC_VOLATILE.

Thu Mar 23 16:04:40 2000  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.md (movdf_internal1a): Delete (set 'f', 'F')
        alternative when using -fp64 -gp32.

2000-03-22  Jason Merrill  <jason@casey.cygnus.com>

        * config/rs6000/rs6000.h (DWARF_FRAME_RETURN_COLUMN): Define.
        * config/alpha/alpha.h (DWARF_FRAME_RETURN_COLUMN): Define.
        * config/sparc/sparc.h (DWARF_FRAME_RETURN_COLUMN): Define.

        * frame.h (frame_state): Revert last change.
        * frame.c (execute_cfa_insn): Just don't record the save of a CFA reg.
        * libgcc2.c (throw_helper): Revert last change.

2000-03-22  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_asm_operands): Don't promote the temporary.

2000-03-22  Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>

        * builtin.c (get_pointer_alignment): Use DECL_P and TYPE_P macros.
        * c-common.c (decl_attributes,check_format_info,truthvalue_conversion,
          c_get_alias_set): Likewise.
        * c-decl.c (duplicate_decls): Likewise.
        * c-typeck.c (default_conversion,build_unary_op): Likewise.
        * calls.c (initialize_argument_information): Likewise.
        * dwarf2out.c (decl_class_context,add_abstract_origin_attribute):
        Likewise.
        * dwarfout.c (decl_class_context,output_type): Likewise.
        * expr.c (get_inner_reference): Likewise.
        * fold-const.c (simple_operand_p,fold): Likewise.
        * function.c (aggregate_value_p): Likewise.
        * stmt.c (expand_asm_operands): Likewise.
        * varasm.c (named_section): Likewise.

2000-03-22  Jason Merrill  <jason@casey.cygnus.com>

        Implement dwarf2 exception handling for the ARM.
        * config/arm/arm.h (INCOMING_RETURN_ADDR_RTX): Define.
        (DWARF_FRAME_RETURN_COLUMN): Define.
        * config/arm/arm.c (emit_multi_reg_push): Return rtx.  Attach
        REG_FRAME_RELATED_EXPR note.
        (emit_sfm): Likewise.
        (arm_expand_prologue): Set RTX_FRAME_RELATED_P on everything.
        * dwarf2out.c (reg_save): Handle saving a register to itself.
        (dwarf2out_frame_debug_expr): Handle an intermediate cfa reg.
        * except.c (eh_regs): Don't use the static chain reg if it's
        callee-saved.
        * frame.h (frame_state): Add cfa_saved field.
        * frame.c (execute_cfa_insn): Set it.
        * libgcc2.c (throw_helper): Don't adjust sp if it's restored in
        the epilogue.
        * function.c (ARG_POINTER_CFA_OFFSET): Default to FIRST_PARM_OFFSET.
        Now takes a parm.
        (instantiate_virtual_regs): Adjust.
        * tm.texi: Adjust.
        * config/m68k/m68k.h (ARG_POINTER_CFA_OFFSET): Don't define.
        * config/ns32k/ns32k.h (ARG_POINTER_CFA_OFFSET): Don't define.
        * config/sparc/sparc.h (ARG_POINTER_CFA_OFFSET): Take a parm.

        * dwarf2out.c (reg_number): Refer to FIRST_PSEUDO_REGISTER.
        (initial_return_save): Use DWARF_FRAME_REGNUM, not reg_number.

2000-03-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def: New file.

        * Makefile.in (TREE_H): Depend on builtins.def.

        * builtins.c (built_in_names): Use builtins.def.

        * tree.h (built_in_function): Likewise.

2000-03-22  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (size_in_bytes): Return size_zero_node, not
        integer_zero_node.

2000-03-22  Geoff Keating  <geoffk@cygnus.com>

        * config/fp-bit.c (pack_d): Correct the case when a denormal
        is rounded up and stops being denormal.

2000-03-21  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (function_arg): Check for void_type_node
        before using MUST_PASS_IN_STACK.

2000-03-21  Stephane Carrez  <stcarrez@worldnet.fr>

        * regmove.c (combine_stack_adjustments_for_block): Check that
        the stack pointer is a valid memory address.

Wed Mar 22 11:44:50 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c: re-install Mar 16 emit_library_call merge.

2000-03-21  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (mem_min_alignment): If not optimizing,
        we cannot be sure that if reload_completed base register will
        be properly aligned.

2000-03-21  Richard Henderson  <rth@cygnus.com>

        * flow.c (delete_block): Fix typo last change.

2000-03-21  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (c_expand_expr_stmt): Use COMPLETE_TYPE_OR_VOID_P,
        not COMPLETE_TYPE_P, to check the type of the expression.

2000-03-21  Michael Meissner  <meissner@redhat.com>

        * config/alpha/alpha.md (floating point insns): Add TARGET_FP to
        all floating point insns that just tested the macro
        TARGET_HAS_XFLOATING_LIBS.
        (movsf/movdf recognizers): Add separate insns if -mno-fp-regs is
        used to only use the gprs.

2000-03-21  Nathan Sidwell  <nathan@codesourcery.com>

        * tree.h (COMPLETE_TYPE_P): New macro.
        (COMPLETE_OR_VOID_TYPE_P): New macro.
        (COMPLETE_OR_UNBOUND_ARRAY_TYPE_P): New macro.
        * stor-layout.c (layout_type, case VOID_TYPE): Don't set TYPE_SIZE.
        * c-aux-info.c (gen_type): Use them.
        * c-common.c (c_expand_expr_stmt): Likewise.
        * c-decl.c (poplevel, pushdecl, start_decl, finish_decl,
        grokdeclarator, grokparms, finish_struct, start_function,
        store_parm_decls, combine_parm_decls): Likewise.
        * c-parse.y (cast_expr): Likewise.
        * c-typeck.c (require_complete_type, c_sizeof, c_sizeof_nowarn,
        c_size_in_bytes, c_alignof, build_component_ref,
        build_indirect_ref, build_array_ref, convert_arguments,
        build_binary_op, pointer_diff, build_unary_op, digest_init: Likewise.
        * calls.c (initialize_argument_information): Likewise.
        * convert.c (convert_to_integer): Likewise.
        * dbxout.c (dbxout_typedefs, dbxout_type, dbxout_symbol): Likewise.
        * dwarfout.c (location_or_const_value_attribute,
        output_enumeration_type_die, output_structure_type_die,
        output_union_type_die, output_type): Likewise.
        * expr.c (safe_from_p, expand_expr): Likewise.
        * function.c (assign_parms): Likewise.
        * sdbout.c (sdbout_symbol, sdbout_one_type): Likewise.
        * tree.c (build_array_type, build_function_type,
        build_method_type, build_offset_type, build_complex_type): Likewise.
        * c-parse.c, c-parse.h: Regenerated.

2000-03-21  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/rtems.h: Include config/rtems.h.

Tue Mar 21 09:24:00 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (encode_section_info): sets SYMBOL_REF_FLAG if
        decl is a FUNCTION_DECL

Mon Mar 20 19:53:53 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (ia64_expand_prologue): Don't abort if leaf
        function uses output registers.  Don't save RP for leaf functions.
        Do save RP even if no epilogue.
        * config/ia64/ia64.h (FIXED_REGISTERS): Unmark in/out registers.
        (CALL_USED_REGISTERS): Unmark in registers.
        (REG_ALLOC_ORDER): Move out regs up, to near the top.  Move in regs up,
        to near the middle.

2000-03-20  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (bunordered): New expander.
        (bordered): New expander.
        (buneq): New expander.
        (bunge): New expander.
        (bungt): New expander.
        (bunle): New expander.
        (bunlt): New expander.
        (bltgt): New expander.

        * config/rs6000/rs6000.c (ccr_bit): Handle unordered comparisons.
        (ccr_bit_negated_p): New function.
        (print_operand): For %C, generate appropriate cror for UNEQ,
        UNLT, UNGT, and LTGT.  For %T and %t, use ccr_bit_negated_p.

2000-03-20  Andreas Jaeger  <aj@suse.de>

        * sdbout.c (sdbout_one_type): Add braces to avoid "ambigous else"
        warning.

        * tree.h (safe_for_unsave): Prototype.

2000-03-20  Richard Henderson  <rth@cygnus.com>

        * regmove.c (stack_memref_p): Fix typo, reorg for readability.
        (combine_stack_adjustments_for_block): Don't allow sp references
        in the side of a set we're not fixing up.
        * toplev.c (rest_of_compilation): Run combine_stack_adjustments
        after life_analysis.

2000-03-20  Richard Henderson  <rth@cygnus.com>

        * calls.c (expand_call): Don't bother generating tail call
        sequences if there are pending cleanups.  Use
        expand_start_target_temps/expand_end_target_temps to elide
        cleanups created during sibcall expansion.

2000-03-20  Geoff Keating  <geoffk@cygnus.com>

        * configure.in: Set $IFS to a value if it doesn't already have one
        in the --enable-checking handling.
        * configure: Regenerate.

2000-03-20  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * c-parse.in (SAVE_WARN_FLAGS): Use size_int.
        * c-parse.y, c-parse.c, objc/objc-parse.y, objc/objc-parse.c:
        Regenerated.

Mon Mar 20 11:43:15 MET 2000  Jan Hubicka  <jh@suse.cz>

        * jump.c (delete_noop_moves): Remove code attempting to
        combine stack adjustments.

2000-03-19  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * emit-rtl.c (push_to_full_sequence, end_full_sequence): New functions.
        * except.c (emit_cleanup_handler): Use them.
        (expand_end_all_catch): Likewise.
        * function.c (fixup_var_refs): Likewise.
        (expand_function_end): Clear catch_clauses_last.
        * rtl.h (push_to_full_sequence, end_full_sequence): Declare.
        * except.h (struct eh_status): New field x_catch_clauses_last.
        (catch_clauses_last): New define.

        * Makefile.in (tree.o): Depend on HASHTAB_H.
        * tree.c: Include hashtab.h.
        (struct type_hash): Remove next field.
        (TYPE_HASH_SIZE): Remove.
        (TYPE_HASH_INITIAL_SIZE): New define.
        (type_hash_table): Change type to htab_t.
        (type_hash_eq, type_hash_hash, print_type_hash_statistics,
        mark_hash_entry): New functions.
        (init_obstacks): Allocate type hash.
        (type_hash_lookup): Use htab functions.
        (type_hash_add, mark_type_hash): Likewise.
        (dump_tree_statistics): Call print_type_hash_statistics.

2000-03-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rs6000/t-aix41: New file.

        * configure.in ({rs6000,powerpc}-ibm-aix4.[12]*): Use it.

Sun Mar 19 13:27:30 2000  Hans-Peter Nilsson  <hp@axis.com>

        * tm.texi (Driver): Fix typos and tweak entry for
        INCLUDE_DEFAULTS.
        Move misplaced STRUCT_FORCE_BLK entry ...
        (Storage Layout): ... to here.
        (Run-time Target): Recommend having TARGET_MASK_... helper macros.

2000-03-19  Richard Henderson  <rth@cygnus.com>

        * flow.c (delete_block): Delete the addr_vec along with the block.
        (flow_delete_insn): Decrement LABEL_NUSES when deleting insns that
        reference labels.

        * fold-const.c (extract_muldiv): Apply type check for defined
        overflow to multiply as well as divide.

        * stor-layout.c (layout_decl): Don't abort on any zero sized decl.

2000-03-18  Mark Mitchell  <mark@codesourcery.com>

        * emit-rtl.c (remove_unncessary_notes): Check that all
        NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes have an
        associated NOTE_BLOCK.
        * function.h (identify_blocks): Update comments.
        (reorder_blocks): Declare.
        * function.c (identify_blocks): Don't take paramters.
        (reorder_blocks): Don't take parameters.
        * loop.h (find_loop_tree_blocks): Remove.
        (unroll_block_trees): Likewise.
        * loop.c (loop_optimize): Don't call find_loop_tree_blocks.  Use
        reorder_blocks instead of unroll_block_trees.h
        * sibcall.c (optimize_sibling_and_tail_recursive_calls): Likewise.
        * stmt.c (find_loop_tree_blocks): Remove.
        (unroll_block_trees): Likewise.
        * toplev.c (rest_of_compilation): Don't call find_loop_tree_blocks
        in whole-function mode.
        * tree.h (reorder_blocks): Remove declaration.

        * expr.c: Include intl.h.
        * Makefile.in (expr.o): Depend on intl.h.

2000-03-18  Richard Henderson  <rth@cygnus.com>

        * expr.c (emit_move_insn_1): Clarify cannot_inline message.

2000-03-18  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (tree_index): Remove enumerals for integer types.
        (integer_type_kind): New type.
        (integer_types): New variable.
        (char_type_node): Adjust.
        (signed_char_type_node): Likewise.
        (unsigned_char_type_node): Likewise.
        (short_integer_type_node): Likewise.
        (short_unsigned_type_node): Likewise.
        (integer_type_node): Likewise.
        (unsigned_type_node): Likewise.
        (long_integer_type_node): Likewise.
        (long_unsigned_type_node): Likewise.
        (long_long_integer_type_node): Likewise.
        (long_long_unsigned_type_node): Likewise.
        * tree.c (integer_types): New variable.
        (init_obstacks): Register it as a root.

Sat Mar 18 14:38:00 2000  Jason Eckhardt  <jle@cygnus.com>

        * bb-reorder.c (reorder_basic_blocks): Update PREV_INSN as well as
        NEXT_INSN. Update last insn in chain.

2000-03-17  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (dwarf2out_decl): Don't emit anything for types
        with TYPE_DECL_SUPPRESS_DEBUG set.

2000-03-18  Richard Henderson  <rth@cygnus.com>

        * flow.c (make_edges): Use INTVAL to access REG_EH_REGION value.

2000-03-18  Richard Henderson  <rth@cygnus.com>

        * i386.c (call_insn_operand): Always allow SYMBOL_REF,
        care for HALF_PIC_P.
        (expander_call_insn_operand): Remove.
        (ix86_expand_epilogue): New arg `emit_return' to control return insn.
        * i386.h (PREDICATE_CODES): Update.
        * i386.md (all call expanders): Remove predicates, remove special
        handling for half-pic.
        (*call_1, *call_value_1): Handle SIBLING_CALL_P insns.
        (*call_pop_pic2, *call_pic2, *call_value_pop_2, *call_value_2): Remove.
        (sibcall_epilogue): New.

2000-03-17  Richard Henderson  <rth@cygnus.com>

        * rtlanal.c (single_set): Reject if the parallel has anything
        except SET or USE or CLOBBER.

2000-03-17  Jeff Law  <law@cygnus.com>
            Richard Henderson  <rth@cygnus.com>

        * Makefile.in (OBJS): Add sibcall.o.
        (sibcall.o): New.
        * sibcall.c: New file.
        * calls.c (FUNCTION_OK_FOR_SIBCALL): Provide default.
        (ECF_IS_CONST, ECF_NOTHROW, ECF_SIBCALL): New.
        (emit_call_1): Replace `is_const' and `nothrow' with `ecf_flags'.
        Emit sibcall patterns when requested.  Update all callers.
        (expand_call): Generate CALL_PLACEHOLDER insns when tail call
        elimination seems feasable.
        * final.c (leaf_function_p): Sibling calls don't discount being
        a leaf function.
        * flow.c (HAVE_sibcall_epilogue): Provide default.
        (find_basic_blocks_1): Sibling calls don't throw.
        (make_edges): Make edge from sibling call to EXIT.
        (propagate_block): Don't remove sibcall_epilogue insns.
        * function.c (prologue, epilogue): Turn into varrays.  Update all uses.
        (sibcall_epilogue): New.
        (fixup_var_refs): Scan CALL_PLACEHOLDER sub-sequences.
        (identify_blocks_1): Likewise.  Break out from ...
        (identify_blocks): ... here.
        (reorder_blocks_1): Scan CALL_PLACEHOLDER.  Break out from ...
        (reorder_blocks): ... here.
        (init_function_for_compilation): Zap prologue/epilogue as varrays.
        (record_insns): Extend a varray instead of mallocing new memory.
        (contains): Read a varray not array of ints.
        (sibcall_epilogue_contains): New.
        (thread_prologue_and_epilogue_insns): Emit and record
        sibcall_epilogue patterns.
        (init_function_once): Allocate prologue/epilogue varrays.
        * genflags.c (gen_insn): Treat sibcall patterns as calls.
        * integrate.c (save_parm_insns): Recurse on CALL_PLACEHOLDER patterns.
        Broken out from ...
        (save_for_inline_nocopy): ... here.
        (copy_insn_list): Recurse on CALL_PLACEHOLDER patterns.
        Broken out from ...
        (expand_inline_function): ... here.
        (copy_rtx_and_substitute): Handle NOTE_INSN_DELETED_LABEL.
        (subst_constants): Handle 'n' formats.
        * jump.c (jump_optimize_minimal): New.
        (jump_optimize_1): New arg `minimal'; update callers.  Elide most
        optimizations if it's set.
        * rtl.c (copy_rtx): Do copy jump & call for insns.
        * rtl.h (struct rtx_def): Document use of jump and call for insns.
        (SIBLING_CALL_P): New.
        (sibcall_use_t): New.
        * toplev.c (rest_of_compilation): Do init_EXPR_INSN_LIST_cache earlier.
        Invoke optimize_sibling_and_tail_recursive_calls.
        * tree.c (lang_safe_for_unsave): New.
        (safe_for_unsave): New.
        * tree.h (lang_safe_for_unsave, safe_for_unsave): Declare.

        * alpha.h (FUNCTION_OK_FOR_SIBCALL): New.
        * alpha.md (sibcall, sibcall_value, sibcall_epilogue): New.
        (*sibcall_osf_1, *sibcall_value_osf_1): New.

2000-03-17  Mark Mitchell  <mark@codesourcery.com>

        * objc/objc-act.c (encode_method_prototype): Pass types, not
        PARM_DECLs, to int_size_in_bytes.

Fri Mar 17 11:51:34 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.md (mix4right_3op): Swap %1 and %2 in template.

        * config/ia64/ia64-protos.h, config/ia64/ia64.c, config/ia64/ia64.h,
        config/ia64/ia64.md, config/ia64/xm-ia64.h: Fix copyrights again.

Fri Mar 17 08:09:14 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * Clean up usages of TREE_INT_CST_LOW.
        * c-parse.in (RESTORE_WARN_FLAGS): Use tree_low_cst.
        * c-parse.y, c-parse.c, objc/objc-parse.y, objc/objc-parse.c:
        Regenerated.
        * c-tree.h (min_precision): Move declaration to here.
        * c-typeck.c (build_binary_op): Use host_integerp and tree_low_cst.
        (build_unary_op, add_pending_init): Use bit_position.
        (pending_init_member, process_init_element): Likewise.
        (really_start_incremental_init, push_init_level, pop_init_level):
        Don't make copies of nodes or modify them in place, use consistent
        types when tracking positions, and use tree routines computations.
        (set_init_index, output_init_element): Likewise.
        (output_pending_init_elements, process_init_element): Likewise.
        * dbxout.c (dbxout_type_fields): Use bit_position, host_integerp,
        tree_low_cst and int_bit_position; also minor cleanup.
        (dbxout_type_method_1, dbxout_range_type, dbxout_type): Likewise.
        (print_cst_octal): Precision is unsigned.
        (dbxout_symbol): Ensure DECL_INITIAL is in-range and use tree_low_cst.
        * dwarf2out.c (ceiling): Input and output are unsigned HOST_WIDE_INT.
        (simple_type_align_in_bits): Result is unsigned int.
        Use tree_int_low_cst and host_integerp.
        (simple_type_size_in_bits): Result is unsigned HOST_WIDE_INT.
        (field_byte_offset): Result is HOST_WIDE_INT.
        Change types of internal variables so alignments are unsigned int,
        offsets are HOST_WIDE_INT and sizes are unsigned HOST_WIDE_INT.
        Use host_integerp, tree_low_cst, and int_bit_position.
        (add_bit_offset_attribute): Likewise.
        (add_data_member_location_attribute): Use tree_cst_low.
        (add_bound_info): Use host_integerp, integer_zerop, and integer_onep.
        (add_bit_size_attribute): Use tree_low_cst.
        (add_pure_or_virtual_attribute, gen_enumeration_type_die): Likewise.
        * dwarfout.c: Similar changes to dwarf2out.c.
        * expr.c (expand_expr, case ARRAY_REF): Remove redundant code.
        * genoutput.c (n_occurences): Return -1 for null string.
        (strip_whitespace): Accept null string and make into function.
        (scan_operands): Reflect above changes.
        * sdbout.c (plain_type_1): Use host_integerp and tree_low_cst.
        (sdbout_field_types, sdbout_one_type): Likewise; also use bit_position.
        * ssa.c (rename_registers): Add missing cast of arg to bzero.
        * tree.c (int_size_in_bytes): Check for too big to represent.
        (bit_position, int_bit_position, host_integerp, tree_low_cst): New fns.
        * tree.h (host_integerp, tree_low_cst, bit_position, int_bit_position):
        New declarations.
        (min_precision): Delete from here.
        * varasm.c (decode_addr_const): Use host_integerp, bit_position,
        and int_bit_position.
        * objc/objc-act.c (encode_method_prototype): Sizes are HOST_WIDE_INT.
        (encode_method_def): Likewise.
        (build_ivar_list_initializer): Use int_bit_position.
        (generate_shared_structures): Convert size.
        (encode_type, encode_complete_bitfield): Use integer_zerop.
        (encode_bitfield): Use tree_low_cst and int_bit_position.

2000-03-17  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (CPP_SPEC): Fix typo.

2000-03-17  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * call.c (special_function_p): It is only malloc if it returns
        Pmode.

2000-03-17  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (ASM_SPEC, CPP_SPEC, LINK_SPEC): Support C33.
        (C33_FLAG, TARGET_C3X): Add macros.
        (TARGET_SWITCHES): Add -m33 option.
        * config/c4x/c4x.c (c4x_override_options): Test for TARGET_C33.

2000-03-17  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (PARALLEL_INSN_FLAG): Add.
        (PARALLEL_PACK_FLAG): Delete.
        (TARGET_SWITCHES): Update.
        (TARGET_PARALLEL): Use PARALLEL_INSN_FLAG.

Thu Mar 16 18:52:32 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * fold-const.c (fold): Fix a few cases when the returned result
        is not of the same type as the input.

2000-03-16  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (ASM_OUTPUT_MI_THUNK): Fix compile time
        warning.

2000-03-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * libgcc2.h: Move prototypes above macros with the same name.
        Wrap some function prototypes in the conditional which indicates
        whether they are supported, i.e. "BITS_PER_UNIT == 8".

2000-03-16  Richard Henderson  <rth@cygnus.com>

        * calls.c: Revert last two changes.

2000-03-16  Bernd Schmidt  <bernds@cygnus.co.uk>

        * fp-bit.c (_unpack_d): If NO_DENORMALS is defined, anything that
        has exponent 0 is a zero.

        * simplify-rtx.c (hash_rtx, case MEM/REG): Take into account that
        HASH may already be nonzero.  Add code/mode into hash value
        immediately after repeat label.
        (cselib_lookup): Don't leave the hash table in an inconsistent
        state before a hash lookup operation.

Thu Mar 16 17:03:10 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (all HI and QI mode non-move patterns):  Conditionize
        by TARGET_[HQ]IMODE_MATH.
        * i386.h (x86_himode_math, x86_qimode_math, x86_promote_hi_regs,
        x86_promote_qi_regs): Declare.
        (TARGET_HIMODE_MATH, TARGET_QIMODE_MATH, TARGET_PROMOTE_HI_REGS,
        TARGET_PROMOTE_QI_REGS): New macros.
        (PROMOTE_MODE): New macro.
        * i386.c (x86_himode_math, x86_qimode_math, x86_promote_hi_regs,
        x86_promote_qi_regs): New global variables.

Thu Mar 16 16:50:44 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (emit_library_call_value_1): Break out from ...; handle
        VOIDmode function calls too.
        (emit_library_call_value): ... here.
        (emit_library_call): Implement by calling emit_library_call_value_1.

Thu Mar 16 16:01:30 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (expand_call): Do sanity checking on arg_space_so_far.
        Update arg_space_so_far on stack adjustments.
        (emit_library_call, emit_library_call_value): Likewise; take into
        account arg_space_so_far and pending_stack_adjust when calculcating
        the boundary.

Thu Mar 16 09:02:19 2000  Jason Eckhardt  <jle@cygnus.com>

        * flow.c: Move all basic block reordering code into its own file.
        (create_basic_block): Externalize.
        * bb-reorder.c: New file. Copy all basic block reordering code from
        flow.c to this file.
        (reorder_basic_blocks): Fix fencepost error in for-loop.
        (reorder_basic_blocks): Remove braces from single statement for-loops.
        * basic-block.h: Add declaration for create_basic_block.
        * Makefile.in: Add rules for bb-reorder.o.

2000-03-16  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (handle_option):  Implement #unassert directive
        as -A- command line option.
        (print_help):  Update.
        * cpptexi.c:  Update.

Thu Mar 16 02:14:16 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * md.texi (Standard Names): Document `jump'.

2000-03-15  Jason Merrill  <jason@casey.cygnus.com>

        * calls.c (emit_call_1): Nothrow functions can still have nonlocal
        gotos.

2000-03-15  Geoff Keating  <geoffk@cygnus.com>

        Merge changes from newppc-branch onto trunk.

        2000-03-15  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (toc_hash_table): Update for new hash table functions.
        (toc_hash_function): Likewise.
        (toc_hash_eq): Likewise.
        (toc_hash_mark_entry): Likewise.
        (toc_hash_mark_table): Likewise.
        (output_toc): Likewise.
        (rs6000_add_gc_roots): Likewise.

        2000-03-15  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * t-aix43 (AR_FOR_TARGET): Deleted.  Moved `-X32_64'...
        (AR_FLAGS_FOR_TARGET): here.  New macro.

        2000-03-05  Clinton Popetz  <cpopetz@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_fpmem_offset, rs6000_fpmem_size,
        fpmem_operand) Delete.
        (xer_operand) New.
        (rs6000_reg_names, alt_reg_names): Change fpmem to xer.
        (machine_function): Remove fpmem_size, fpmem_offset, save_toc_p.
        (rs6000_save_machine_status, rs6000_restore_machine_status,
        rs6000_init_expanders, rs6000_stack_info, debug_stack_info): Remove
        references to above variables.
        (gpc_reg_operand): Use XER_REGNO_P instead of FPMEM_REGNO_P.
        * config/rs6000/rs6000.h (REG_ALLOC_ORDER, REGISTER_NAMES,
        DEBUG_REGISTER_NAMES): Chagne fpmem to xer.
        (FPMEM_REGNO_P, FPMEM_REGNUM): Delete.
        (XER_REGNO_P, XER_REGNO): New.
        (rs6000_stack): Remove fpmem_p, fpmem_offset, fpmem_size.
        (PREDICATE_CODES): Change fpmem_operand to xer_operand.
        (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK): Change FPMEM_REGNO_P to
        XER_REGNO_P.
        (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
        REG_CLASS_FROM_LETTER, CLASS_MAX_NREGS): Change FPMEM_REGS to XER_REGS,         and remove FLOAT_OR_FPMEM_REGS.
        (CLASS_CANNOT_CHANGE_SIZE): Change to FLOAT_REGS.

        2000-02-29  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * aix.h (FP_SAVE_INLINE, ASM_OUTPUT_INTERNAL_LABEL_PREFIX,
        TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Move here...
        * rs6000.h: from here.

        * rs6000-protos.h (rs6000_select_section): Provide prototype.
        (rs6000_select_rtx_section): Likewise.
        (rs6000_encode_section_info): Likewise.
        (sdata_section): Likewise.
        (sdata2_section): Likewise.
        (sbss_section): Likewise.
        * sysv4.h (rs6000_select_section): Delete prototype.
        (rs6000_select_rtx_section): Likewise.
        (rs6000_encode_section_info): Likewise.
        (sdata_section): Likewise.
        (sdata2_section): Likewise.
        (sbss_section): Likewise.
        (REG_SAVE_AREA): Delete definition duplicated in rs6000.h.

        * sysv4.h: Delete various unnecessary #undef's and put a comment
        on the remaining ones.
        Change various comments according to coding standard.

        2000-02-29  Clinton Popetz  <cpopetz@cygnus.com>

        * config/rs6000/rs6000.h (MQ_REGNO, CR0_REGNO, CR1_REGNO, CR2_REGNO,
        CR3_REGNO, CR4_REGNO, MAX_CR_REGNO): Define.
        (CR0_REGNO_P) Remove.
        * config/rs6000/rs6000.c (gpc_reg_operand, and64_operand, and_operand,
        setup_incoming_varargs, mtcrf_operation, print_operand,
        rs6000_stack_info, rs6000_emit_prologue, rs6000_emit_epilogue):
        Use the above macros.

        2000-02-24  Clinton Popetz  <cpopetz@cygnus.com>

        * config/rs6000/rs6000.md: Added a new alternative for each
        pattern that had a 'x' alternative but no 'y' alternative.
        Added a new split for each of the above patterns.

        2000-02-18  Geoff Keating  <geoffk@cygnus.com>

        * aix41.h (ASM_CPU_SPEC): Delete.
        (CPP_CPU_SPEC): Delete.

        * aix.h (RS6000_OUTPUT_BASENAME): Define.
        (ASM_OUTPUT_LABEL): Define.
        (ASM_GLOBALIZE_LABEL): Define.
        (STRIP_NAME_ENCODING): Define.
        * rs6000.h (RS6000_OUTPUT_BASENAME): Don't define.
        (STRIP_NAME_ENCODING): Don't define.
        (ASM_OUTPUT_LABEL): Don't define.
        (ASM_GLOBALIZE_LABEL): Don't define.
        * sysv4.h (ASM_DECLARE_FUNCTION_NAME): Use assemble_name to output
        names, and ASM_OUTPUT_LABEL to output labels, rather than
        asm_fprintf.
        (ASM_OUTPUT_LABEL): Define.
        (ASM_OUTPUT_INT): Use assemble_name.
        (ASM_OUTPUT_DWARF_ADDR): Use assemble_name.
        (STRIP_NAME_ENCODING): Don't undefine first.
        (RS6000_OUTPUT_BASENAME): Make equivalent to assemble_name for
        ELF.
        (ASM_OUTPUT_LABELREF): Don't prepend underscores to labels
        specified with 'asm' even with -fleading-underscore.
        * rs6000.c (print_operand): Use assemble_name when !TARGET_AIX.
        (output_epilog): Likewise.
        (output_toc): Likewise.
        * tramp.asm: Handle -fleading-underscore correctly.

        * rs6000.md (builtin_setjmp_receiver): Also run for -fPIC and
        -mminimal-toc.
        (nonlocal_goto_receiver): Delete.
        * rs6000.h (DONT_ACCESS_GBLS_AFTER_EPILOGUE): Delete.

        * rs6000.h (ASM_OUTPUT_DEF): Don't define.
        (SET_ASM_OP): Define.
        * sysv4.h (ASM_OUTPUT_DEF): Don't undefine.

        * rs6000.h (ASM_OUTPUT_ADDR_VEC_ELT): Don't define.
        (ASM_LONG): Define.

        * rs6000.c (rs6000_dll_import_ref): Delete, not used.
        * rs6000-protos.h (rs6000_dll_import_ref): Delete.

        * rs6000.h: Add 'u' to more constants.

        2000-02-18  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (mfcr+shift): Delete PowerPC64 version.

        2000-02-15  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (reg_or_u_cint_operand): New function.
        (logical_operand): Handle 64-bit hosts.
        (logical_u_operand): New function.
        (non_logical_cint_operand): Handle 64-bit hosts.
        (non_logical_u_cint_operand): New function.
        * rs6000.h (DATA_SECTION_ASM_OP): Add tab.
        (PREDICATE_CODES): Define new functions.
        * rs6000-protos.h: Declare new functions.
        * rs6000.md (iordi3, xordi3): Constant int must be unsigned 32-bits.
        (movdi_64): Bracket code intended for 64-bit hosts.  Create
        CONST_DOUBLE for 32-bit values.
        (scc insns): Generate DImode compares.
        (mfcr insns): Create DImode versions.
        (sge matchers): New patterns.

        2000-02-15  Gabriel Paubert  <paubert@iram.es>

        * rs6000.md: Correct instructions length attributes and
        constraints on unsigned compare instructions.
        (*ne0): Disable for PowerPC64.

        2000-02-11  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (output_function_profiler): Use .long for a 32-bit
        quantity, fix profile1.C test failure under -fPIC.

        * rs6000.c: Add 'u' to many constants to suppress warnings.
        (constant_pool_expr_1): Make static.
        (rs6000_emit_eh_toc_restore): Remove unused 'r2'.
        * rs6000.h: Add 'u' to many constants to suppress warnings.

        * rs6000.c (rs6000_emit_load_toc_table): Use LCTOC..1 under AIX
        for the start of the TOC, instead of LCTOC..0.
        * aix.h (toc_section): Use LCTOC..1 under AIX for the start
        of the TOC.
        * rs6000.md (load_toc_aix_si): Use LCTOC..1.
        (load_toc_aix_di): Use LCTOC..1.

        * rs6000.h (LEGITIMIZE_ADDRESS): Turn into a function.
        * rs6000.c (rs6000_legitimize_address): New function from
        LEGITIMIZE_ADDRESS.  Only use create_TOC_reference on
        symbols in the constant pool that really are TOC references.
        (print_operand_address): For ELF, write TOC offsets under
        -fPIC as subtractions in the insn.
        (output_toc): For ELF, define symbols in TOC as normal labels,
        to match RTL.
        (create_TOC_reference): Use gen_rtx_PLUS rather than gen_rtx.
        * rs6000-protos.h (rs6000_legitimize_address): Prototype.
        (create_TOC_reference): Prototype only when RTX_CODE is defined.
        * rs6000.md (movsi): Only use create_TOC_reference on
        symbols in the constant pool that really are TOC references.

        * rs6000.h (MACHINE_DEPENDENT_REORG): Don't define.
        * rs6000.c (rs6000_reorg): Delete.
        * rs6000-protos.h (rs6000_reorg): Delete.

        2000-02-09  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.h (INCOMING_RETURN_ADDR_RTX): New macro.

        * aix.h (SETUP_FRAME_ADDRESSES): Define.
        * rs6000.c [TARGET_AIX] (insn_after_throw): New static variable.
        [TARGET_AIX] (rs6000_aix_emit_builtin_unwind_init): New function.
        [TARGET_AIX] (rs6000_emit_eh_toc_restore): New function.
        * rs6000-protos.h: Prototype rs6000_emit_eh_toc_restore,
        rs6000_aix_emit_builtin_unwind_init.
        * rs6000.md (eh_epilogue) [TARGET_AIX]: Call
        rs6000_emit_eh_toc_restore on AIX.
        (return_eh_si): Use r2.
        (return_eh_di): Use r2.

        * aix43.h: Turn on HAS_INIT_SECTION and LD_INIT_SWITCH,
        since we're breaking binary compatibility anyway.

        2000-02-09  Clinton Popetz  <cpopetz@cygnus.com>

        * config/rs6000/rs6000-protos.h: (get_TOC_alias_set, uses_TOC,
        constant_pool_expr_p): Declare them.
        (constant_pool_expr_p): Declare it.
        * config/rs6000/rs6000.c (toc_label_name): Define.
        (rs6000_override_options): Set toc_label_name.
        (input_operand): Allow any TOC_RELATIVE_EXPR_P.
        (get_TOC_alias_set, constant_pool_expr_p, constant_pool_expr_1,
        uses_TOC): New functions.
        (print_operand): Delete old '*' case.
        (print_operand_address): Use LEGITIMATE_CONSTANT_POOL_ADDRESS_P,
        and strip off rtl for TOC before calling output_addr_const.
        (rs6000_emit_load_toc_table): Use toc_label_name.
        * config/rs6000/rs6000.h (TARGET_SWITCHES): Make msched-prolog
        the default.
        (LEGITIMATE_CONSTANT_POOL_BASE_P): Delete.
        (CONSTANT_POOL_EXPR_P, TOC_RELATIVE_EXPR_P): New macros.
        (LEGITIMATE_CONSTANT_POOL_ADDRESS_P): Use CONSTANT_POOL_EXPR_P.
        (LEGITIMIZE_ADDRESS, LEGITIMIZE_RELOAD_ADDRESS): Turn symbol_refs
        into explicit TOC_REGISTER offsets.
        (TOC_REGISTER): New macro.
        * config/rs6000/rs6000.md (movsi, movdi): Emit rtl under
        TARGET_TOC to reference TOC_REGISTER.
        (load_toc_v4_PIC_1b): Add 4 to offset for toc reload.
        * config/rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Call
        uses_TOC before emitting label references.

        2000-02-05  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (stack_tie): Fix warning.

        * eabi-ctors.c: Use 'asm' names for the start/end variables,
        to handle -fleading-underscore.
        * sysv4.h (ASM_DECLARE_FUNCTION_NAME): Use asm_fprintf and %U.
        (USER_LABEL_PREFIX): New macro.
        (ASM_OUTPUT_INTERNAL_LABEL_PREFIX): Use asm_fprintf and %L.
        (ASM_OUTPUT_LABELREF): Use asm_fprintf and %U.
        * t-ppccomm (MULTILIB_MATCHES_SYSV): Note that call-sysv and
        call-linux can use the same multilibs.
        * t-ppcgas (MULTILIB_OPTIONS): Don't need to have separate call-sysv
        and call-linux multilibs.  Do multilib with -fleading-underscore.
        (MULTILIB_DIRNAMES): Follow MULTILIB_OPTIONS change.
        (MULTILIB_EXCEPTIONS): Remove call-linux exceptions.  Add restrictions
        to call-aix.

        * sysv4.h (CPP_SYSV_SPEC): Define _SOFT_FLOAT for all those CPUs that
        have MASK_SOFT_FLOAT set.
        (CPP_FLOAT_DEFAULT_SPEC): New macro.
        (SUBTARGET_EXTRA_SPECS): Set `cpp_float_default' to the value of
        CPP_FLOAT_DEFAULT_SPEC.

        * rs6000.c (ccr_bit): Add some consistency checks and a variable 'reg'.
        * rs6000.md: Whitespace change.
        * sysv4.h (LINK_TARGET_SPEC): Whitespace change.
        * sysv4le.h (LINK_TARGET_SPEC): Whitespace change.

        2000-02-05  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (eh_epilogue): New expander.
        (eh_reg_restore): New expand/split/insn combination.
        (return_eh_si): New insn.
        (return_eh_di): New insn.

        * eabi-ci.asm: Put a label at the start of the .eh_frame section.
        * eabi-cn.asm: Put a zero at the end of the .eh_frame section.
        * eabi-ctors.c (__do_global_ctors): Register this object's
        frame.  Clean up.  Call atexit() after the constructors.
        (__do_global_dtors): Deregister this object's frame.  Clean up.
        Allow for recursive calls to exit().
        * rs6000.c (fixuplabelno): New variable.
        * sysv4.h (ASM_OUTPUT_INT): Don't do .fixup if not
        TARGET_RELOCATABLE, it slows down exec() under linux.
        (ASM_OUTPUT_DWARF_ADDR): Do .fixup if TARGET_RELOCATABLE.

        * aix.h (ASM_OUTPUT_DWARF_ADDR_VAR): New macro.
        (ASM_OUTPUT_DWARF_DELTA_VAR): New macro.
        (ASM_OUTPUT_DWARF_DELTA2): New macro.
        (ASM_OUTPUT_DWARF_DELTA4): New macro.
        (ASM_OUTPUT_DWARF_ADDR_DELTA): New macro.
        (ASM_OUTPUT_DWARF_ADDR): New macro.
        (ASM_OUTPUT_DWARF_DATA4): New macro.
        (ASM_OUTPUT_DWARF_DATA2): New macro.
        (ASM_OUTPUT_DWARF_OFFSET4): New macro.
        (ASM_OUTPUT_DWARF_OFFSET): New macro.
        (UNALIGNED_INT_ASM_OP): New macro, fake definition.

        2000-02-03  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_sr_alias_set): New variable.
        (rs6000_override_options): Initialise rs6000_sr_alias_set.
        (rs6000_emit_stack_tie): New function.
        (rs6000_emit_allocate_stack): Specify RTX_FRAME_RELATED_P
        in a way that dwarf2out can understand.
        (rs6000_frame_related): New function.
        (rs6000_emit_prologue): Use rs6000_sr_alias_set.  Specify
        RTX_FRAME_RELATED_P in a way that dwarf2out can understand.
        Use rs6000_emit_stack_tie when needed.
        (rs6000_emit_epilogue): Use rs6000_sr_alias_set.  Don't set
        RTX_FRAME_RELATED_P.  Use rs6000_emit_stack_tie when needed.
        * rs6000.md (stack_tie): New insn.
        (return_internal_si): Allow return value to be in the count
        register.
        (return_internal_di): Likewise.

        * rs6000.c (output_mi_thunk): Remove unused variable `sp'.

        2000-02-03  Geoff Keating  <geoffk@cygnus.com>

        * sysv4.h (LOCAL_LABEL_PREFIX): Define, for the use of dbxelf.h.

        2000-01-31  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.h (ASM_OUTPUT_DEF_FROM_DECLS): New macro.

        * rs6000.md (stmw): Use the right POWER opcode.
        (lmw): Likewise.

        2000-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rs6000-protos.h: New file.

        * rs6000.c: Include tm_p.h.  Fix compile time warnings.

        * rs6000.h: Move prototypes to rs6000-protos.h.  Fix compile time
        warnings.

        * sysv4.h: Likewise.

        2000-01-28  Geoff Keating  <geoffk@cygnus.com>

        * ../../configure.in: Delete powerpcle-*-winnt*
        and powerpcle-*-pe|powerpcle-*-cygwin*.
        * ../../configure: Regenerated.
        * cygwin.h: Delete.
        * rs6000.h (OBJECT_WINDOWS_NT): Delete.
        (TARGET_WINDOWS_NT): Delete.
        (ABI_NT): Delete.
        (CALL_NT_DLLIMPORT): Delete.
        Delete NT-specific code.
        * rs6000.md, rs6000.c, sysv4.h: Delete NT-specific code.
        * win-nt.h: Delete.
        * t-winnt: Delete.
        * nt-ci.asm: Delete.
        * nt-cn.asm: Delete.
        * ntstack.asm: Delete.

        2000-01-27  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.h (SELECT_RTX_SECTION): Move to aix.h.
        (ASM_FILE_START): Likewise.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        (ASM_OUTPUT_LABELREF): Likewise.
        (ASM_OUTPUT_SKIP): Likewise.
        (ASM_OUTPUT_INTERNAL_LABEL): Likewise.
        (ASM_GENERATE_INTERNAL_LABEL): Likewise.
        (ASM_OUTPUT_CASE_LABEL): Likewise.
        (ASM_OUTPUT_ALIGNED_COMMON): Likewise.
        (ASM_OUTPUT_ASCII): Likewise.

        2000-01-27  Clinton Popetz  <cpopetz@cygnus.com>

        * rs6000.c (rs6000_emit_load_toc_table): Use "LCG" and
        reload_toc_labelno for non-prologue TOC reloads.  Also, don't
        increment rs6000_pic_labelno here.
        (rs6000_emit_prologue): Pass TRUE to rs6000_emit_load_toc_table,
        and increment rs6000_pic_labelno here.

        2000-01-24  Geoffrey Keating  <geoffk@cygnus.com>

        * rs6000.md (fctiwz): Use (set (reg) (unspec:DI [(fix:SI ...)]))
        rather than (set (subreg:SI (reg)) (fix:SI ...)) so that register
        allocation knows (reg) is dead before the insn.

        2000-01-21  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (movsi_to_cr): Correct typo in output template.

        2000-01-19  Geoffrey Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_pic_labelno): Always define.
        (rs6000_pic_func_labelno): Delete.
        (lmw_operation): Check for a zero base register,
        which doesn't mean what we want.
        (stmw_operation): New function.
        (print_operand): Define new 'l' modifier.
        (rs6000_stack_info): We must save all 64 bits of the registers
        if TARGET_POWERPC64.
        (rs6000_output_load_toc_table): Delete.
        (rs6000_emit_load_toc_table): New function.
        (rs6000_allocate_stack_space): Delete.
        (rs6000_emit_allocate_stack): New function.
        (rs6000_emit_prologue): New function.
        (output_prolog): Use rs6000_emit_prologue.
        (rs6000_emit_epilogue): Change a few variable names to be
        more accurate.  Restore all 64 bits of the registers if
        TARGET_POWERPC64.  Only restore the FP registers which were used
        if they are being saved/restored one-at-a-time.
        (output_mi_thunk): Delete inefficient code generation.
        (output_function_profiler): Don't use rs6000_output_load_toc_table.
        * rs6000.h: Declare rs6000_emit_load_toc_table,
        rs6000_allocate_stack_space, stmw_operation.  Don't declare
        rs6000_output_load_toc_table.
        * rs6000.md (elf_high): Allow register 0, but discourage it
        heavily.
        (elf_low): Support loading into register 0.
        (load_toc_aix_si): New pattern.
        (load_toc_aix_di): New pattern.
        (load_toc_v4_pic_si): New pattern.
        (load_toc_v4_pic_di): New pattern.
        (load_toc_v4_PIC_1): New pattern.
        (load_toc_v4_PIC_1b): New pattern.
        (load_toc_v4_PIC_2): New pattern.
        (builtin_setjmp_receiver): Use rs6000_emit_load_toc_table.
        (nonlocal_goto_receiver): Use rs6000_emit_load_toc_table.
        (prologue): New expander.
        (movesi_from_cr): New pattern.
        (stmw): New pattern.
        (save_fpregs_si): New pattern.
        (save_fpregs_di): New pattern.

        2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (movsi): Don't use force_reg when no_new_pseudos.
        (movdi): Likewise.
        (movhi): Likewise.
        (movqi): Likewise.

        2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (movsi_got): 'unspec 8' returns a SImode result,
        at present.
        (movsi_got_internal): Likewise.
        (movsi_got_internal+1): Likewise.
        (set_sp): 'unspec 7' does a SImode clobber.

        2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md (floatsidf2): Don't use the fpmem "register", just
        allocate a stack temporary.
        (floatsidf2_internal): Likewise.
        (floatsidf2_internal+1): Likewise.  Don't do bizzare hacks
        with unspec.
        (floatunssidf2): Don't use the fpmem "register", just
        allocate a stack temporary.
        (floatunssidf2_internal): Likewise.
        (floatunssidf2_internal+1): Likewise.  Don't do bizzare hacks
        with unspec.
        (floatsidf2_loadaddr): Delete.
        (floatsidf2_store1): Delete.
        (floatsidf2_store2): Delete.
        (floatsidf2_load): Delete.
        (fix_truncdfsi2): Don't use the fpmem "register", just
        allocate a stack temporary.
        (fix_truncdfsi2_internal_si): Delete.
        (fix_truncdfsi2_internal_di): Delete.
        (fix_truncdfsi2_internal): New insn.
        (fix_truncdfsi2_internal+1): Don't use the fpmem "register".
        (fix_truncdfsi2_store): Delete.
        (fix_truncdfsi2_load): Delete.
        (fctiwz): Produce gen_fctiwz.

        2000-01-19  Geoffrey Keating  <geoffk@cygnus.com>

        * eabi.h (INVOKE__main): Define.
        * rs6000.c (rs6000_stack_info): Don't handle call to NAME__MAIN
        specially.
        (rs6000_emit_prologue): Likewise.
        * rs6000.h (struct rs6000_stack): Don't keep track of whether
        this is the main program.

        2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_va_arg): Delete some unused variables.

        2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_va_arg): On AIX, padding for small arguments
        goes after the argument.

        2000-01-12  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.md: Document 'unspec' values used.
        (epilogue): New expander.
        (movesi_to_cr_one): New expander.
        (movesi_to_cr and following): New pattern.
        (lmw): New pattern.
        (return_internal_si): New pattern.
        (return_internal_di): New pattern.
        (return_and_restore_fpregs_si): New pattern.
        (return_and_restore_fpregs_di): New pattern.
        * rs6000.h: Declare new functions.
        * rs6000.c (rs6000_stack_info): Use current_function_is_leaf
        rather than rs6000_calls_p.
        (rs6000_makes_calls): Delete.
        (lmw_operation): New function.
        (mtcrf_operation): New function.
        (rs6000_emit_epilogue): New function.
        (output_epilog): Call rs6000_emit_epilogue and final if
        !TARGET_SCHED_PROLOG, instead of writing text unconditionally.

        2000-01-12  Geoff Keating  <geoffk@cygnus.com>

        * aix43.h (SUBSUBTARGET_SWITCHES): Document switches.
        * aix41.h (SUBSUBTARGET_SWITCHES): Document switches.
        * aix.h (SUBTARGET_SWITCHES): Document switches.
        * rs6000.h: (TARGET_SWITCHES): Don't print options twice.  Make
        sched-prolog and sched-epilog the same.  Document all the
        switches.
        (TARGET_OPTIONS): No longer allow -mdebug-.

        2000-01-12  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.h (ASM_FILE_END): Move to aix.h.
        (EXTRA_SECTIONS): Move to aix.h.
        (READONLY_DATA_SECTION): Move to aix.h.
        (EXTRA_SECTION_FUNCTIONS): Move to aix.h.
        (SELECT_SECTION): Move to aix.h.
        (JUMP_TABLES_IN_TEXT_SECTION): Move to aix.h.
        (INT_REGNO_P): Use symbolic name for ARG_POINTER_REGNUM.
        (LINK_REGISTER_REGNUM): New definition.
        (RETURN_ADDR_RTX): Use symbolic name for LINK_REGISTER_REGNUM.
        (SLOW_UNALIGNED_ACCESS): Define in a way suitable for both
        AIX and SVR4.
        * sysv4.h: Delete the code between the inclusion of rs6000.h
        and svr4.h.
        (DWARF_DEBUGGING_INFO): Don't define, it's defined in elfos.h.
        (FP_ARG_MAX_REG): Move generic definition to rs6000.h.
        (RS6000_REG_SAVE): Move generic definition to rs6000.h.
        (RS6000_SAVE_AREA): Move generic definition to rs6000.h.
        * rs6000.md (floatsidf2_loadaddr): The first arg here is Pmode.
        (fix_truncdfsi2_internal): Rename to fix_truncdfsi2_internal_si.
        (fix_truncdfsi2_internal_di): New pattern.
        (fix_truncdfsi2_store): The second arg here is Pmode too.
        (fix_truncdfsi2_load): The second arg here is Pmode too.
        (tablejumpdi): Now that switch tables hold only SImode values,
        gcc needs to know how to add them to the pc which is DImode.
        * rs6000.c (rs6000_stack_info): Use symbolic name for
        LINK_REGISTER_REGNUM.
        (output_mi_thunk) [!TARGET_ELF]: Don't define sp, it's not used.
        (output_toc): Delete unused variables s1 and s2.
        (output_ascii): Use fputs not fprintf on a variable string.

        2000-01-07  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (processor_target_table): Add power3 as alias for 630.
        * aix43.h: Revert Aug 2 change.
        (HAS_INIT_SECTION): Define, not visible yet.
        (LD_INIT_SWITCH): Define, not visible yet.
        * t-aix43 (MULTILIB_OPTIONS): Revert Aug 2 change.

        2000-01-04  Joel Sherrill (joel@OARcorp.com>

        * config/rs6000/rtems.h: Include config/rtems.h.

        2000-01-04  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.h (HANDLE_PRAGMA_PACK): Define.
        (SLOW_UNALIGNED_ACCESS): Define.
        (CASE_VECTOR_MODE): Always use 32-bit offsets.
        (ASM_FILE_END): Generate 64-bit symbol in 64-bit mode.
        (EXTRA_SECTOIN_FUNCTIONS): Indent .csect pseudo-op.
        (toc_section): Likewise and .toc pseudo-op.
        (ASM_DECLARE_FUNCTION): Likewise.  Align text more strictly in
        64-bit mode.
        (TEXT_SECTION_ASM_OP): Likewise.
        (ASM_OUTPUT_ADD_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT): Always use
        32-bit offsets.

        1999-12-17  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.h (TARGET_POWERPC64): Make sure
        UNITS_PER_WORD and BITS_PER_WORD are compile time constants when
        compiling libgcc2.

        2000-01-06  Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.h: Move more stuff from here...
        * aix.h: to here.
        * sysv4.h: Cleanup accordingly.
        * netware.h: Likewise

        2000-01-05  Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.h: Continue cleanup.
        * aix.h: Likewise.
        * lynx.h: Likewise.
        * netware.h: Likewise.
        * sol2.h: Likewise.
        * sysv4.h: Likewise.
        * win-nt.h: Likewise.

        * rs6000.h (TARGET_SWITCHES): Add descriptions.
        (TARGET_OPTIONS): Likewise.

        * sysv4.h (SUBTARGET_SWITCHES): Add descriptions.
        (SUBTARGET_OPTIONS): Likewise.

        * rs6000.md: Fix compile time warnings.

        2000-01-04  Geoff Keating  <geoffk@cygnus.com>

        vxworks patches from the Cygnus tree originally by
        Michael Meissner <meissner@cygnus.com> and Vladimir Makarov
        <vmakarov@cygnus.com>.
        * sysv4.h (SUBTARGET_SWITCHES): Add vxworks.
        (ENDFILE_SPEC): Likewise.
        (LIB_VXWORKS_SPEC): New macro.
        (STARTFILE_VXWORKS_SPEC): New macro.
        (ENDFILE_VXWORKS_SPEC): New macro.
        (LINK_START_VXWORKS_SPEC): New macro.
        (LINK_OS_VXWORKS_SPEC): New macro.
        (CPP_OS_VXWORKS_SPEC): New macro.
        (SUBTARGET_EXTRA_SPECS): Add all the vxworks specs.
        * vxppc.h: Rewrite to use proper configuration method.
        * vxppcle.h: New file.
        * ../../configure.in: Add powerpcle-wrs-vxworks*.
        * ../../configure: Rebuilt.

        2000-01-04  Geoff Keating  <geoffk@cygnus.com>

        Lots of changes to rs6000.h, sysv4.h, aix.h,
        aix31.h, aix3newas.h, aix41.h, aix43.h, beos.h,
        with the aim that rs6000.h is the first header
        included and the others override it.
        * aix.h: New file.

        * x-aix41-gld: Remove.
        * x-aix43: Remove.
        * x-aix41: Remove target-specific switches, and don't specify
        -Wl,-bbigtoc as we don't need it any more.
        * ../../configure.in: Use x-aix41 for ppc AIX 4.1 and above.
        Use t-aix43 for AIX 4.3 and above.
        * ../../configure: Regenerated.

        * rs6000.h (TARGET_SWITCHES): Add some initial prolog-scheduling
        options, that don't do anything yet.
        (MASK_SCHED_PROLOG): New macro.
        (MASK_SCHED_EPILOG): New macro.
        (TARGET_SCHED_PROLOG): New macro.
        (TARGET_SCHED_EPILOG): New macro.

        2000-01-04  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c: Correct comment, the `minimal' TOCs are actually
        one per translation unit, not one per function.
        (output_toc): Also do duplicate constant elimination
        for per-translation-unit TOCs.

        * rs6000.md (nonlocal_goto_receiver): Put it back as before.  Add
        a comment explaining _exactly_ when this pattern gets used.
        (builtin_setjmp_receiver): New pattern for better clarity.
        (init_v4_pic): Move it into a section dealing with TOC registers.

        1999-12-30  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (toc_hash_table): New variable.
        (rs6000_hash_constant): New function.
        (toc_hash_function): New function.
        (toc_hash_eq): New function.
        (toc_hash_mark_entry): New function.
        (toc_hash_mark_table): New function.
        (output_toc): Don't output duplicate TOC entries in
        a single file.
        (rs6000_add_gc_roots): Add the hash table as a GC root.
        * t-aix43: Move AR_FOR_TARGET and CLIB here from x-aix43,
        where they clearly shouldn't be.  This may need to be fixed
        later when there is a GNU ar for AIX.
        * x-aix43: Don't define CLIB or AR_FOR_TARGET.
        Don't define BOOT_LDFLAGS as it is now not necessary.

        1999-12-29  Geoff Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_build_va_list): Use 'char *' rather than 'void *'
        for va_list on AIX.  Use unsigned_char_type_node rather than
        constructing our own version on svr4.

        1999-12-17  Geoff Keating  <geoffk@cygnus.com>

        * tramp.asm (__trampoline_size): Delete CYGNUS LOCAL comment,
        since patently it's not.

        1999-12-08  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (nonlocal_goto_receiver): Turn into
        define_expand/define_insn pair, and handle restore of the
        SVR4 -fpic register.

Wed Mar 15 15:43:38 2000  Jeffrey A Law  (law@cygnus.com)

        * acconfig.h (HAVE_GAS_WEAK): New define.
        * configure.in (assembler weak support): Check for .weak support.
        * config.in, configure: Rebuilt.
        * pa/som.h (MAKE_DECL_ONE_ONLY, ASM_WEAKEN_LABEL): Only define if
        HAVE_GAS_WEAK is defined.

2000-03-15  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (arm_output_epilogue): Do not pass %c to
        asm_fprintf().

2000-03-15  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (open_include_file): New function.
        (find_include_file, cpp_read_file): Use it.

2000-03-15  Jason Merrill  <jason@casey.cygnus.com>

        * cpphash.c (dump_hash_helper): Take the slot, not the element.

Wed Mar 15 14:28:54 2000  Jason Eckhardt  <jle@cygnus.com>

        * flow.c (verify_flow_info): Check for unconditional return.

Wed Mar 15 11:34:27 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.md (restore_stack_nonlocal): New.
        * config/ia64/lib1funcs.asm (__ia64_nonlocal_goto): Delete padding nop.
        (__ia64_restore_stack_nonlocal): New.
        * config/ia64/t-ia64 (LIB1ASMFUNCS): Add __restore_stack_nonlocal.

2000-03-15  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * cpphash.c (collect_formal_parameters): Do not complain about
        parameter names that just start with `__VA_ARGS__'.

Wed Mar 15 13:26:58 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (movhi_1): Promote movw imm, reg to movl imm, reg and
        movw reg, reg to movzwl reg, reg on PARTIAL_REGISTER_STALL machines.
        * i386.c (pentiumpro_cost): Set mul cost to 4.
        (x86_use_movx): Set for PPro.

Wed Mar 15 13:07:05 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (ix86_compute_frame_size): stack_alignment_needed is
        STACK_BOUNDARY for empty frames now.

2000-03-14  Mark Mitchell  <mark@codesourcery.com>

        * stor-layout.c (layout_union): Remove.
        (layout_union_field): New function, split out from layout_union.
        (finish_union_layout): Likewise.
        (layout_field): Handle unions by calling layout_union_field.
        (finish_record_layout): Handle unions.
        (layout_type): Combine RECORD_TYPE, UNION_TYPE, and
        QUAL_UNION_TYPE handling.

Wed Feb 23 13:00:06 CET 2000  Jan Hubicka  <jh@suse.cz>

        * flow.c (fixup_reorder_chain): Avoid double labels in the basic block;
        end of basic block is jump_insn, not barrier; use create_basic_block
        instead of creating basic block by hand.

2000-03-14  Jason Eckhardt  <jle@cygnus.com>

        * flow.c (reorder_basic_blocks): Account for barriers when writing
        over NEXT_INSN (last_bb->end).
        (verify_flow_info): Add check for missing barriers.

2000-03-14  Greg McGary  <gkm@gnu.org>

        * c-lex.h (enum rid): Add RID_BOUNDED & RID_UNBOUNDED.
        * c-lex.c (init_lex): Handle RID_BOUNDED & RID_UNBOUNDED.
        * c-parse.gperf (__bounded, __bounded__, __ptrbase, __ptrbase__,
        __ptrextent, __ptrextent__, __ptrvalue, __ptrvalue__,
        __unbounded, __unbounded__): New keywords.
        * c-parse.in (PTR_VALUE PTR_BASE PTR_EXTENT): New tokens.
        * c-parse.y, c-parse.c, c-parse.h: Regenerate.
        * objc/objc-parse.y, objc/objc-parse.c: Regenerate.

2000-03-14  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cselib.h: New file.
        * alias.c: Include "cselib.h".
        (fixed_scalar_and_varying_struct_p): Accept the addresses of the
        MEMs as two new arguments.
        (get_addr): New static function.
        (find_base_term): Handle VALUEs.
        (memrefs_conflict_p): Likewise.
        (true_dependence): Call get_addr on the addresses.
        Call fixed_scalar_and_varying_struct_p with addresses that have been
        passed through get_addr and canon_rtx.
        (write_dependence_p): Move DIFFERENT_ALIAS_SETS_P test for consistency
        with true_dependence.
        Call get_addr on the addresses; don't call canon_rtx on the MEMs.
        * loop.c: Include "cselib.h".
        (load_mems): Process extended basic block that enters the loop with
        cselib.  Use that information to change initialization of the shadow
        register so that a constant equivalence is seen by later passes.
        * reload1.c: Include "cselib.h".
        (reload_cse_invalidate_regno): Delete function.
        (reload_cse_mem_conflict_p): Likewise.
        (reload_cse_invalidate_mem): Likewise.
        (reload_cse_invalidate_rtx): Likewise.
        (reload_cse_regno_equal_p): Likewise.
        (reload_cse_check_clobber): Likewise.
        (reload_cse_record_set): Likewise.
        (reg_values): Delete static variable.
        (invalidate_regno_rtx): Likewise.
        (reload_cse_delete_noop_set): New static function.
        (reload_cse_simplify): New static function, broken out of
        reload_cse_regs_1.
        (reload_cse_noop_set_p): Delete unused argument INSN.
        Just call rtx_equal_for_cselib_p on set source and destination.
        (reload_cse_regs_1): Break out some code into reload_cse_simplify and
        reload_cse_delete_noop_set.  Delete code to keep track of values; use
        cselib functions instead.  Delete code to push/pop obstacks.
        (reload_cse_simplify_set): Use cselib to find equivalent values.
        Delete code to push/pop obstacks.
        (reload_cse_simplify_operands): Likewise.
        * rtl.def (VALUE): New rtx code.
        * rtl.h (union rtunion_def): New elt rt_cselib.
        (X0CSELIB, CSELIB_VAL_PTR): New macros.
        * simplify_rtx.c: Include "ggc.h", "obstack.h", "cselib.h".
        (new_elt_list, new_elt_loc_list, unchain_one_value, clear_table,
        unchain_one_elt_list, unchain_one_elt_loc_list, check_useless_values,
        discard_useless_locs, discard_useless_values, entry_and_rtx_equal_p,
        hash_rtx, new_cselib_val, add_mem_for_addr, get_value_hash,
        cselib_lookup_mem, cselib_subst_to_values, cselib_invalidate_regno,
        cselib_mem_conflict_p, cselib_invalidate_mem, cselib_invalidate_rtx,
        cselib_record_set, cselib_record_sets): New static functions.
        (cselib_lookup, cselib_update_varray_sizes, cselib_init,
        cselib_finish, cselib_process_insn, rtx_equal_for_cselib_p,
        references_value_p): New functions.
        (MAX_USELESS_VALUES, REG_VALUES): New macros.
        (table, cselib_current_insn, next_unknown_value, cselib_nregs,
        n_useless_values, reg_values, callmem, cselib_obstack,
        cselib_startobj, empty_vals, empty_elt_lists, empty_elt_loc_lists):
        New static variables.
        * varray.h (union varray_data_tag): New elt te.
        (VARRAY_ELT_LIST_INIT, VARRAY_ELT_LIST): New macros.
        * Makefile.in (reload1.o, loop.o, simplify-rtx.o, alias.o): Update
        dependencies.

2000-03-14  Nick Clifton  <nickc@cygnus.com>

        * gcc.c (do_spec_1): Catch the case where %* is used in a
        substitution pattern, but it has not been initialised.
        Issue a meaningful error message if an unrecognised operator
        is encountered in a spec string.

2000-03-14  Richard Earnshaw <rearnsha@arm.com>

        * function.c (prepare_function_start): Correctly initialize
        cfun->stack_alignment_needed.

2000-03-14  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (find_include_file): Don't assume nshort is a
        substring of name.

Tue Mar 14 08:42:21 2000  Jeffrey A Law  (law@cygnus.com)

        * configure.in (hppa configurations): Add pa32-regs.h to the
        list of tm files as appropriate.
        * configure: Rebuilt.
        * pa.c (compute_frame_size): Remove explicit knowledge about FP
        register numbering.
        (hppa_expand_prologue, hppa_expand_epilogue): Likewise.
        (fmpyaddoperands, fmpysuboperands): Likewise.
        * pa.h: Remove various definitions which depend on knowing
        how registers are numbered.
        * pa32-regs.h: New file with PA32 register numbering specific
        definitions.

2000-03-14  Richard Henderson  <rth@cygnus.com>

        * regmove.c (combine_stack_adjustments): New.
        (stack_memref_p, single_set_for_csa): New.
        (free_csa_memlist, record_one_stack_memref): New.
        (try_apply_stack_adjustment): New.
        (combine_stack_adjustments_for_block): New.
        * rtl.h (combine_stack_adjustments): Declare.
        * toplev.c (rest_of_compilation): Call it.

        * i386.md: Revert 2000-01-16 change.

2000-03-14  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * gccbug.in: Add web category, gcc specific classes.

2000-03-14  Nathan Sidwell  <nathan@codesourcery.com>

        * stor-layout.c (finalize_record_size): Fix typo.

2000-03-14  Stan Shebs  <shebs@apple.com>

        * c-typeck.c (c_alignof): Error on incomplete types.
        * extend.texi (Alignment): Document this.

2000-03-13  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c: Include mkdeps.h.
        (find_include_file, read_include_file): Remove _cpp_ prefix
        from name, make static.
        (_cpp_execute_include): New function, broken out of
        do_include.

        * cpplib.c: Don't include mkdeps.h.
        (struct directive): Remove type field. Reorder entries.  The
        function takes only one argument.
        (struct if_stack): Make type field an int.
        (directive_table): Rename to dtable.  Generate it, the
        prototypes of the directive handlers, and the enum for the
        directive numbers, from a template macro.
        (do_ifndef, do_include_next, do_import): New functions.
        (do_define, do_include, do_endif, do_ifdef, do_if, do_else,
        do_undef, do_line, do_elif, do_error, do_pragma, do_warning,
        do_ident, do_assert, do_unassert, do_sccs): Take only one
        argument.
        (do_sccs): Define always, but alter behavior based on
        SCCS_DIRECTIVE.
        (_cpp_handle_directive, consider_directive_while_skipping):
        Restructure for new directive table layout.

        (pass_thru_directive): Take a directive number, not a pointer
        to a struct directive.
        (parse_include): New function, broken out of do_include.
        (do_include, do_import, do_include_next): Use parse_include
        and _cpp_execute_include.
        (do_elif, do_else): Test for T_ELSE specifically when checking
        for #elif/#else after #else.
        (parse_ifdef): New function, broken out of do_ifdef.
        (validate_else): Expect a name arg without a leading #.
        (if_directive_name): Delete.
        (cpp_define, cpp_assert, cpp_undef, cpp_unassert): Call
        directive handlers with only one argument.

        * cpphash.h: Update prototypes.
        (enum node_type): Remove entries for directives.
        * Makefile.in: Update dependencies.

        * cpphash.c (dump_hash_helper): Only dump nodes of type
        T_MACRO.  Emit a newline after each definition.

2000-03-14  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * gccbug.in: New file.
        * configure.in (all_outputs): Add gccbug.
        * Makefile.in (install-common): Install gccbug.
        (GCCBUG_INSTALL_NAME): New variable.
        * configure: Rebuilt.

2000-03-13  Jason Merrill  <jason@casey.cygnus.com>

        * function.c (put_var_into_stack): Use type_for_mode to calculate
        part_type.  Use MEM_SET_IN_STRUCT_P.
        * expr.c (store_field): Handle CONCAT.
        (store_constructor): Use fields_length.
        * tree.c (fields_length): New fn.
        * tree.h: Declare it.

2000-03-13  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (LIBCPP_OBJS): Add cpplex.o.
        (cpplex.o): New target.
        * po/POTFILES.in: Add cpplex.c.

        * cpplex.c (_cpp_grow_token_buffer, null_cleanup,
        cpp_push_buffer, cpp_pop_buffer, cpp_scan_buffer,
        cpp_expand_to_buffer, cpp_buf_line_and_col, cpp_file_buffer,
        skip_block_comment, skip_line_comment, skip_comment,
        copy_comment, _cpp_skip_hspace, _cpp_skip_rest_of_line,
        _cpp_parse_name, skip_string, parse_string,
        _cpp_parse_assertion, cpp_get_token, cpp_get_non_space_token,
        _cpp_get_directive_token, find_position,
        _cpp_read_and_prescan, _cpp_init_input_buffer): Move here.
        (maybe_macroexpand, _cpp_lex_token): New functions.

        * cpplib.c (SKIP_WHITE_SPACE, eval_if_expr, parse_set_mark,
        parse_goto_mark): Delete.
        (_cpp_handle_eof): New function.
        (_cpp_handle_directive): Rename from handle_directive.
        (_cpp_output_line_command): Rename from output_line_command.
        (do_if, do_elif): Call _cpp_parse_expr directly.
        * cppfiles.c (_cpp_read_include_file): Don't call
        init_input_buffer here.
        * cpphash.c (quote_string): Move here, rename _cpp_quote_string.
        * cppexp.c (_cpp_parse_expr): Diddle parsing_if_directive
        here; pop the token_buffer and skip the rest of the line here.
        * cppinit.c (cpp_start_read): Call _cpp_init_input_buffer
        here.

        * cpphash.h (CPP_RESERVE, CPP_IS_MACRO_BUFFER, ACTIVE_MARK_P):
        Define here.
        (CPP_SET_BUF_MARK, CPP_GOTO_BUF_MARK, CPP_SET_MARK,
        CPP_GOTO_MARK): New macros.
        (_cpp_quote_string, _cpp_parse_name, _cpp_skip_rest_of_line,
        _cpp_skip_hspace, _cpp_parse_assertion, _cpp_lex_token,
        _cpp_read_and_prescan, _cpp_init_input_buffer,
        _cpp_grow_token_buffer, _cpp_get_directive_token,
        _cpp_handle_directive, _cpp_handle_eof,
        _cpp_output_line_command): Prototype them here.
        * cpplib.h (enum cpp_token): Add CPP_MACRO.
        (CPP_RESERVE, get_directive_token, cpp_grow_buffer,
        quote_string, output_line_command): Remove.

2000-03-13  Bernd Schmidt  <bernds@cygnus.co.uk>

        * stmt.c (expand_end_case): RANGE may be signed, and when checking
        whether it is too large we must also verify that it isn't negative.

2000-03-13  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md: Remove all traces of TARGET_LIVE_G0.
        (movsi_zero_liveg0): Remove.
        (movsf_insn_novis_liveg0): Remove.
        (negsi2): Remove.
        (negsi2_not_liveg0): Rename to negsi2.
        (one_cmplsi2): Remove.
        (one_cmplsi2_not_liveg0): Rename to one_cmplsi2.
        (one_cmplsi2_liveg0): Remove.
        * config/sparc/sparc.h (TARGET_LIVE_G0, TARGET_BROKEN_SAVERESTORE,
        MASK_LIVE_G0, MASK_BROKEN_SAVERESTORE): Remove.
        (CONDITIONAL_REGISTER_USAGE): Remove TARGET_LIVE_G0 if.
        (PREDICATE_CODES): Remove zero_operand.
        * config/sparc/sparc.c: Remove all traces of TARGET_LIVE_G0 and
        TARGET_BROKEN_SAVERESTORE.
        (zero_operand): Remove.
        * config/sparc/splet.h (SUBTARGET_SWITCHES): Remove -mlive-g0,
        -mno-live-g0, -mbroken-saverestore and -mno-broken-saverestore
        options.
        (SUBTARGET_OVERRIDE_OPTIONS): Remove.
        * config/sparc/linux-aout.h (TARGET_LIVE_G0,
        TARGET_BROKEN_SAVERESTORE): Remove.
        * config/sparc/linux.h (TARGET_LIVE_G0, TARGET_BROKEN_SAVERESTORE):
        Remove.
        * config/sparc/linux64.h (TARGET_LIVE_G0, TARGET_BROKEN_SAVERESTORE):
        Remove.
        * config/sparc/sol2.h (TARGET_LIVE_G0, TARGET_BROKEN_SAVERESTORE):
        Remove.

        * config/sparc/sparc.md (return_df_no_fpu): New pattern.

2000-03-13  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (do_pragma_implementation): Fix off-by-one error
        truncating a string.  Don't assume tokens are nul terminated.
        Problem noted by Andreas Jaeger <aj@suse.de>

2000-03-13  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_name_and_src_coords_attributes): Only add
        DW_AT_MIPS_linkage_name for TREE_PUBLIC decls.
        (ASM_OUTPUT_DWARF_ADDR_CONST): Don't output trailing newline.

2000-03-13  Richard Earnshaw <rearnsha@arm.com>

        * stor-layout.c (new_record_layout_info): Fix typo inside ifdef
        STRUCTURE_SIZE_BOUNDARY.

2000-03-13  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (record_layout_info_s): New structure.
        (record_layout_info): New type.
        (new_record_layout_info): New function.
        (layout_field): Likewise.
        (finish_record_layout): Likewise.
        * stor-layout.c (layout_record): Remove.
        (new_record_layout_info): New function.
        (layout_field): New function, broken out from layout_record.
        (finalize_record_size): Likewise.
        (compute_record_mode): Likewise.
        (finalize_type_size): New function, broken out from layout_type.
        (finish_record_layout): Likewise.
        (layout_type): Use them.

2000-03-12  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c: Don't include version.h.
        (special_symbol) [case T_VERSION]: Look for the string in
        hp->value.cpval; don't use version_string.
        * cppinit.c (initialize_builtins): Set hp->value.cpval for
        __VERSION__ to version_string.
        * Makefile.in (cpphash.o): Update deps.

2000-03-12  Zack Weinberg  <zack@wolery.cumb.org>

        Convert cpplib to use libiberty/hashtab.c.

        * cpplib.h (struct cpp_reader): Make hashtab and
        all_include_files of type 'struct htab *'.  Delete HASHSIZE
        and ALL_INCLUDE_HASHSIZE macros.

        * cpphash.h: Update prototypes.
        (struct hashnode): Remove next, prev, and bucket_hdr members.
        Make length a size_t.  Add hash member.
        (struct ihash): Remove next member.  Add hash member.  Make
        name a flexible array member.

        * cppfiles.c: Include hashtab.h.
        (include_hash): Delete.
        (IHASHSIZE): New macro.
        (hash_IHASH, eq_IHASH, _cpp_init_include_hash): New functions.
        (cpp_included): Do the hash lookup here.
        (_cpp_find_include_file): Rewrite.
        (cpp_read_file): Put the "fake" hash entry into the hash
        table.  Honor the control_macro, if it turns out we've seen
        the file before.  Don't push the buffer here.
        (_cpp_read_include_file): Push the buffer here.
        (OMODES): New macro.  Use it whenever we call open(2).

        * cpphash.c: Include hashtab.h.
        (hash_HASHNODE, eq_HASHNODE, del_HASHNODE, dump_hash_helper,
        _cpp_init_macro_hash, _cpp_dump_macro_hash, _cpp_make_hashnode,
        _cpp_lookup_slot): New functions.
        (HASHSIZE): new macro.
        (hashf, _cpp_install, _cpp_delete_macro): Delete.
        (_cpp_lookup): Use hashtab.h routines.

        * cppinit.c: Include hashtab.h.
        (cpp_reader_init): Call _cpp_init_macro_hash and
        _cpp_init_include_hash.  Don't allocate hashtab directly.
        (cpp_cleanup): Just call htab_delete on pfile->hashtab and
        pfile->all_include_files.
        (initialize_builtins): Use _cpp_make_hashnode and
        htab_find_slot to add hash entries.
        (cpp_finish): Just call _cpp_dump_macro_hash.
        * cpplib.c: Include hashtab.h.
        (do_define): Use _cpp_lookup_slot and _cpp_make_hashnode to
        create hash entries.
        (do_pragma_poison, do_assert): Likewise.
        (do_include): Don't push the buffer here.  Don't increment
        system_include_depth unless _cpp_read_include_file succeeds.
        (do_undef, do_unassert): Use _cpp_lookup_slot and htab_clear_slot
        or htab_remove_elt.
        (do_pragma_implementation): Use alloca to create copy.

        * Makefile.in: Update dependencies.

2000-03-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppinit.c (cl_directive_handler): More K&R fixing.

Sat Mar 11 23:54:26 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (ia64_compute_frame_size): Align size to
        STACK_BOUNDARY.
        * config/ia64/ia64.h (REGISTER_MOVE_COST): Add missing parentheses.

2000-03-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppinit.c (no_arg, no_ass, no_dir, no_fil, no_mac, no_pth):
        Change from char[] to macros.

2000-03-12  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (cpp_start_read): Update indirect function
        call to K&R C.

Sat Mar 11 16:18:12 2000  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (ADDITIONAL_REGISTER_NAMES): Fix typo in loc79
        entry.

        * config/ia64/ia64-protos.h, config/ia64/ia64.c, config/ia64/ia64.h,
        config/ia64/ia64.md, config/ia64/xm-ia64.h: Fix copyright messages.

2000-03-11  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (struct pending option): Replace undef with a
        pointer to a directive handling routine.
        (struct cpp_pending): Replace separate assert_ and define_
        lists with one directive_ list.
        (new_pending_define): Rename new_pending_directive. Extra
        argument is the directive's handling routine.
        (handle_option): Update to use new_pending_directive.

2000-03-11  Neil Booth  <NeilB@earthling.net>

        * cppfiles.c (file_cleanup, _cpp_find_include_file,
        remap_filename, _cpp_read_include_file, actual_directory,
        hack_vms_include_specification): Replace bcopy(), index() etc
        calls.  Add casts to some allocations.  Make some variables
        pointers to const [unsigned] char.
        * cpphash.c (_cpp_install, macro_cleanup, collect_expansion,
        collect_formal_parameters): Similarly.
        * cppinit.c (struct pending_option, append_include_chain,
        cpp_options_init, cpp_reader_init, initialize_standard_includes,
        cpp_start_read, new_pending_define, handle_option): Similarly.
        * cpplib.c (cpp_define, copy_comment, do_define, do_include,
        do_undef, do_error, do_warning, do_pragma, do_pragma_once,
        do_pragma_implementation, detect_if_not_defined,
        do_ifdef, skip_if_group, cpp_get_token, parse_string,
        do_assert, do_unassert): Similarly.
        * cpplib.h (cpp_buffer, cpp_options): Update types.  Update
        function prototypes.
        * mkdeps.c (deps_add_target, deps_add_dep): cast allocations.

2000-03-10  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_strlen): Revert last change.
        Use emit_insn_before if we're at the beginning of a sequence.

2000-03-10  Jason Merrill  <jason@casey.cygnus.com>

        * builtins.c (expand_builtin_strlen): Make sure that we have something
        at the beginning of the sequence.

        * toplev.c (rest_of_compilation): Also set TREE_NOTHROW for
        deferred inlines.

        * invoke.texi (C++ Dialect Options): Document -fno-enforce-eh-specs.

2000-03-10  Richard Henderson  <rth@cygnus.com>

        * except.c (can_throw): Use INTVAL on a CONST_INT.
        (reachable_handlers): Likewise.
        * flow.c (count_basic_blocks, find_basic_blocks_1): Likewise.

2000-03-10  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h: Undefine MD_EXEC_PREFIX and
        MD_STARTFILE_PREFIX since those are not needed on linux.
        (ASM_FILE_START): New, from mips/gnu.h.

2000-03-09  Richard Henderson  <rth@cygnus.com>
            Alex Samuel  <samuel@codesourcery.com> and others

        * Makefile.in (ssa.o): New rule.
        (OBJS): Add ssa.o.
        (STAGESTUFF): Add *.ssa and *.ussa.
        (mostlyclean): Delete *.ssa, *.ussa, */*.ssa, */*.ussa.
        * rtl.def (PHI): New RTL expression.
        * rtl.h (clear_log_links): New declaration.
        (convert_to_ssa): Likewise.
        (convert_from_ssa): Likewise.
        * flow.c (split_edge): If the entry node falls through to the
        split edge's source block, split the entry edge.
        (clear_log_links): New function.
        * toplev.c (ssa_dump): New variable.
        (flag_ssa): Likewise.
        (f_options): Add "ssa".
        (compile_file): Create SSA dump files.
        (rest_of_compilation): Go to and from SSA if enabled.
        (decide_d_option): Handle -de for SSA dump files.
        * ssa.c: New file.

Thu Mar  9 20:01:38 2000  Jim Wilson  <wilson@cygnus.com>

        * expr.c (expand_assignment): For a CALL_EXPR, special case PARM_DECL
        same as VAR_DECL.

2000-03-09  Benjamin Kosnik  <bkoz@cygnus.com>

        * config/alpha/linux.h (WCHAR_TYPE): Make consistent.

Thu Mar  9 18:10:02 2000  Jeffrey A Law  (law@cygnus.com)

        * config/pa/pa-hpux10.h (LIB_SPEC): Correct typo in !p case.
        (MD_STARTFILE_PREFIX_1): New macro.

2000-03-09  Robert Lipe  <robertl@sco.com>

        * config/ia64/ia64.c: Include system.h.

2000-03-09  Jason Merrill  <jason@casey.cygnus.com>

        * except.c (nothrow_function_p): If -fno-exceptions, just return.
        (init_eh_nesting_info): Likewise.

        * tree.h (struct tree_common): Rename raises_flag to nothrow_flag.
        (TREE_NOTHROW): Rename from TREE_RAISES.
        * toplev.c (rest_of_compilation): Set it.
        * print-tree.c (print_node): Adjust.
        * tree.c (stabilize_reference, build, build1): Don't set TREE_RAISES.
        (stabilize_reference_1, get_unwidened, get_narrower): Likewise.
        * calls.c (emit_call_1): Add 'nothrow' parm.  Add
        REG_EH_REGION note as appropriate.
        (libfunc_nothrow): New fn.
        (emit_library_call, emit_library_call_value): Use it.
        (expand_call): Check TREE_NOTHROW.

        * varasm.c (make_decl_rtl): Skip initial '*' when setting
        DECL_ASSEMBLER_NAME.

2000-03-09  Andreas Jaeger  <aj@suse.de>

        * mips/linux.h (NO_IMPLICIT_EXTERN_C): Define.
        (TARGET_MEM_FUNCTIONS): Define.

2000-03-09  Jason Merrill  <jason@casey.cygnus.com>

        * i386.c (ix86_valid_type_attribute_p): Use compare_tree_int.

        * except.c (can_throw): See through a SEQUENCE.
        (nothrow_function_p): New fn.
        * except.h: Declare it.
        * function.c (current_function_nothrow): New var.
        (prepare_function_start): Initialize it.
        * output.h: Declare it.
        * toplev.c (rest_of_compilation): Set it.
        * dwarf2out.c (dwarf2out_begin_prologue): Use it.

2000-03-09  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (collect_formal_parameters): strncmp returns 0 for
        match.  (cpp_compare_defs): Count the nul separator when
        advancing over argument names.

2000-03-09  Bernd Schmidt  <bernds@cygnus.co.uk>

        * recog.c (preprocess_constraints): Matching constraints affect
        same alternative/different operand, not same operand/different
        alternative.

        * reload1.c (eliminate_regs_in_insn): Handle additions of eliminable
        register and a constant specially.

2000-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * libgcc2.h: New file.
        * libgcc2.c: Move macros, typedefs and prototypes to libgcc2.h.

Wed Mar  8 16:19:42 2000  Jim Wilson  <wilson@cygnus.com>

        * configure.in (ia64*-*-elf*, ia64*-*-linux*): New.
        * configure: Regenerate.
        * config/ia64: New.

2000-03-08  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (LIBCPP_DEPS): New macro.
        (cpplib.o, cpphash.o, cpperror.o, cppexp.o, cppfiles.o): Use
        it to declare deps.
        * cpperror.c: Include cpphash.h.
        * cppexp.c: Include cpphash.h.  Remove MULTIBYTE_CHARS
        dingleberry.
        (lex): Don't use CPP_WARN_UNDEF.
        (_cpp_parse_expr): Return an int, the truth value.
        * cppfiles.c: Include cpphash.h.
        (_cpp_merge_include_chains): Move to cppinit.c and make static.
        * cppinit.c (include_defaults_array): Disentangle.
        (cpp_cleanup): Don't free the if stack here.
        (cpp_finish): Pop off all buffers, not just one.
        * cpplib.c (eval_if_expr): Return int.
        (do_xifdef): Rename do_ifdef.
        (handle_directive): Don't use CPP_PREPROCESSED.
        (cpp_get_token): Don't use CPP_C89.
        * fix-header.c: Don't use CPP_OPTIONS.

        * cpplib.h: Move U_CHAR, enum node_type, struct
        file_name_list, struct ihash, is_idchar, is_idstart,
        is_numchar, is_numstart, is_hspace, is_space, CPP_BUF_PEEK,
        CPP_BUF_GET, CPP_FORWARD, CPP_PUTS, CPP_PUTS_Q, CPP_PUTC,
        CPP_PUTC_Q, CPP_NUL_TERMINATE, CPP_NUL_TERMINATE_Q,
        CPP_BUMP_BUFFER_LINE, CPP_BUMP_LINE, CPP_PREV_BUFFER,
        CPP_PRINT_DEPS, CPP_TRADITIONAL, CPP_PEDANTIC, and prototypes
        of _cpp_simplify_pathname, _cpp_find_include_file,
        _cpp_read_include_file, and _cpp_parse_expr to cpphash.h.
        Move struct if_stack to cpplib.c.  Move struct cpp_pending to
        cppinit.c.
        Change all uses of U_CHAR to be unsigned char instead.
        Delete CPP_WARN_UNDEF, CPP_C89, and CPP_PREPROCESSED.

2000-03-08  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (dw_fde_struct): Add 'nothrow'.
        (dwarf2out_begin_prologue): Set it.
        (output_call_frame_info): Don't emit EH unwind info for leaves.

        * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow
        can occur outside of an EH region.
        * except.c: Correct comments about rethrow behavior.
        (rethrow_symbol_map): Do nothing if !flag_new_exceptions.

2000-03-08  Andrew MacLeod  <amacleod@cygnus.com>

        * flow.c (make_edges): Always call make_eh_edge for calls.

2000-03-08  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (parse_underflow_t, CPP_NULL_BUFFER): Delete.
        (struct cpp_buffer): Remove fname and underflow fields.
        (struct cpp_reader): Remove get_token field.
        (struct include_hash): Rename to struct ihash.  Add typedef to
        IHASH.
        (struct if_stack): Remove fname field.
        (IF_STACK_FRAME): Rename to IF_STACK.

        * cpperror.c (print_containing_files): Trust that there are no
        macro buffers below the top file buffer.
        * cppfiles.c: Replace all references to 'struct include_hash'
        with 'IHASH'.  Rename initialize_input_buffer to
        init_input_buffer.  Don't set or reference cpp_buffer->fname,
        use buffer->ihash->name instead.
        * cpphash.c (special_symbol): Use cpp_file_buffer.  Use NULL
        not CPP_NULL_BUFFER.
        * cppinit.c: Use NULL not CPP_NULL_BUFFER, IF_STACK not
        IF_STACK_FRAME, IHASH not struct include_hash.
        * cpplib.c: Rename eval_if_expression to eval_if_expr.  Remove
        null_underflow.  Use IF_STACK not IF_STACK_FRAME, IHASH not
        struct include_hash, NULL not CPP_NULL_BUFFER.  Remove all
        references to cpp_buffer->fname (delete entirely, or use
        ->ihash->name instead) and IF_STACK->fname.
        (cpp_push_buffer): Don't set new->underflow.
        (do_include): Use cpp_file_buffer.

        * cpphash.c (collect_formal_parameters): Remove duplicate
        increment of argslen.  Pedwarn in C99 mode if __VA_ARGS__ is
        used as a macro argument name.  Don't append "..." to namebuf
        for varargs macros.  After we're done scanning, go through
        namebuf and make it NUL separated, not comma separated.
        (_cpp_compare_defs): Remove register tag from variables.
        Expect defn->argnames to be NUL separated.
        (_cpp_dump_definition): Expect defn->argnames to be NUL
        separated and in forward order.
        * cpphash.h: Update documentation of argnames field.

2000-03-08  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_strlen): Be prepared for strlensi
        to fail.  Don't pre-expand the source operand.

        * i386.md (strlensi): Initialize eoschar and align before use.

2000-03-08  Jason Merrill  <jason@casey.cygnus.com>

        * expr.c (expand_expr, case ARRAY_REF): Still check for missing
        CONSTRUCTOR element.

2000-03-08  Gavin Romig-Koch  <gavin@cetus.cygnus.com>

        * mips.c (mips_expand_prologue): If the last
        named argument is the vararg marker "va_list", treat it as
        an unnamed argument.

2000-03-08  Clinton Popetz  <cpopetz@cygnus.com>

        * dbxout.c (dbxout_parms): When correcting for promoted
        big-endian parameters, use the mode of the DECL_RTL rather
        than UNITS_PER_WORD.

2000-03-08  Nathan Sidwell  <nathan@codesourcery.com>

        * c-common.h (make_fname_decl): Declare.
        * c-common.c (make_fname_decl): Define.
        (declare_hidden_char_array): Remove.
        (declare_function_name): Use make_fname_decl.
        * c-decl.c (c_make_fname_decl): New function.
        (init_decl_processing): Set make_fname_decl.

Tue Mar  7 23:50:31 2000  Jeffrey A Law  (law@cygnus.com)

        * cccp.c (handle_directive): Initialize backslash_newlines_p.

2000-03-07  Philipp Thomas  <pthomas@suse.de>

        * po/POTFILES.in: Remove cppalloc.c from file list.

2000-03-07  Steve Chamberlain  <sac@pobox.com>

        * pj.c (pj_expand_prologue): current_function->args_info is
        now current_function_args_info.

        * pj.h (STORE_FLAG_VALUE, USER_LABEL_PREFIX,
        LOCAL_LABEL_PREFIX, ASM_GENERATE_INTERNAL_LABEL,
        ASM_OUTPUT_INTERNAL_LABEL, ASM_OUTPUT_SKIP): Define.

2000-03-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (PUT_SDB_TYPE): Define so that the type info is
        output as hexadecimal rather than the default octal.

2000-03-07  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (special_symbol): Fix thinko in previous commit.

2000-03-07  Neil Booth  <NeilB@earthling.net>

        * cppexp.c (struct operation, left_shift, right_shift,
        cpp_parse_expr): Change some "char"s to "U_CHAR"s, and some
        "int"s to "unsigned int"s.
        * cpplib.c (detect_if_not_defined, do_assert, do_unassert):
        Similarly.
        * cpplib.h: Update for above.
        * mkdeps.c (deps_init, deps_calc_target): Cast pointers
        returned from allocations.

        * cppinit.c (opt_comp, parse_options): New functions.
        (handle_option): Use parse_option to parse a single command
        line option, that possibly takes an argument.
        (cpp_handle_options): Sort the array of command line options on
        first invocation (non-ASCII hosts only).
        (print_help): Update.

2000-03-07  Zack Weinberg  <zack@wolery.cumb.org>

        * mkdeps.c (munge): Fix off-by-one bug and inconsistencies in
        backslash counting loops.  Problem noted by Matt Kraai <kraai@ghs.com>.

        * cppfiles.c (_cpp_find_include_file): Make sure ih->name is
        initialized.
        * cppinit.c (cpp_cleanup): Free imp->nshort also.

        * cpperror.c (cpp_print_containing_files,
        cpp_print_file_and_line, v_cpp_message): Rename to
        print_containing_files, print_file_and_line, and v_message.
        * cppexp.c (cpp_parse_expr, cpp_parse_escape, cpp_lex): Rename
        to _cpp_parse_expr, parse_escape, and lex.
        (parse_charconst): Remove broken multibyte support.
        * cppfiles.c (include_hash): Make static.
        (cpp_included): New function.
        (merge_include_chains, find_include_file, finclude,
        simplify_pathname): Rename to _cpp_merge_include_chains,
        _cpp_find_include_file, _cpp_read_include_file, and
        _cpp_simplify_pathname.
        * cpphash.c (cpp_lookup, free_definition, delete_macro,
        cpp_install, create_definition, macroexpand, compare_defs,
        dump_definition): Rename to _cpp_lookup, _cpp_free_definition,
        _cpp_delete_macro, _cpp_install, _cpp_create_definition,
        _cpp_macroexpand, _cpp_compare_defs, and _cpp_dump_definition.
        * cppinit.c (cpp_handle_option): Rename to handle_option, make
        static.
        * cpplib.c: Remove extern prototype of cpp_parse_expr.

        * cpphash.h: Update prototypes.
        * cpplib.h: Likewise.  Prototype _cpp_parse_expr here.

2000-03-07  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.h (PTRDIFF_TYPE): Revert broken change;
        PTRDIFF_TYPE should be based solely on Pmode.
        (SIZE_TYPE): ditto.

2000-03-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.h (rtunion_def): Constify member `rtstr'.
        (emit_line_note_after, emit_line_note, emit_line_note_force,
        emit_note, decode_asm_operands): Constify.

        * cse.c (canon_hash): Likewise.

        * dbxout.c (dbxout_block): Likewise.

        * diagnostic.c (file_and_line_for_asm, v_error_for_asm,
        v_warning_for_asm): Likewise.

        * dwarfout.c (function_start_label): Likewise.

        * emit-rtl.c (emit_line_note_after, emit_line_note, emit_note,
        emit_line_note_force): Likewise.

        * final.c (last_filename, asm_insn_count, final_scan_insn,
        output_source_line): Likewise.

        * function.h (struct emit_status): Likewise.

        * gcse.c (hash_expr_1): Likewise.

        * genattr.c (gen_attr, main): Likewise.

        * genattrtab.c (struct function_unit, current_alternative_string,
        write_attr_valueq, n_comma_elts, next_comma_elt, attr_eq,
        attr_numeral, check_attr_test, check_attr_value,
        convert_set_attr_alternative, convert_set_attr,
        compute_alternative_mask, simplify_by_exploding, gen_attr,
        gen_unit): Likewise.

        * genflags.c (gen_insn): Likewise.

        * gengenrtl.c (type_from_format): Likewise.

        * genopinit.c (gen_insn): Likewise.

        * genoutput.c (n_occurrences, process_template, process_template):
        Likewise.

        * ggc-page.c (ggc_set_mark, ggc_mark_if_gcable, ggc_get_size):
        Likewise.

        * ggc-simple.c (ggc_set_mark, ggc_mark_if_gcable, ggc_get_size):
        Likewise.

        * ggc.h (ggc_mark_string, ggc_mark, ggc_mark_if_gcable,
        ggc_set_mark, ggc_get_size): Likewise.

        * objc/objc-act.c (build_module_descriptor, finish_objc): Likewise.

        * optabs.c (init_one_libfunc): Likewise.

        * output.h (assemble_start_function): Likewise.

        * recog.c (decode_asm_operands): Likewise.

        * toplev.c (rest_of_compilation): Likewise.

        * tree.h (emit_line_note_after, emit_line_note,
        emit_line_note_force): Likewise.

        * varasm.c (asm_output_bss, asm_output_aligned_bss,
        asm_emit_uninitialised, assemble_start_function,
        assemble_variable, const_hash, compare_constant_1,
        find_pool_constant, mark_constant_pool, assemble_alias): Likewise.

        * xcoffout.h (DBX_FINISH_SYMBOL): Likewise.

        * alpha/alpha.md (call_vms, call_value_vms): Likewise.

        * arm/aof.h (ASM_OUTPUT_ASCII): Likewise.

        * arm/aout.h (ASM_OUTPUT_ASCII): Likewise.

        * arm/arm-protos.h (output_ascii_pseudo_op, arm_dllexport_name_p,
        arm_dllimport_name_p): Likewise.

        * arm/arm.c (arm_encode_call_attribute, output_ascii_pseudo_op):
        Likewise.

        * arm/arm.h (ASM_OUTPUT_MI_THUNK): Likewise.

        * arm/elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * arm/pe.c (arm_dllexport_name_p, arm_dllimport_name_p,
        arm_mark_dllexport, arm_mark_dllimport,
        arm_pe_encode_section_info): Likewise.

        * arm/telf.h (ASM_OUTPUT_DEF_FROM_DECLS,
        ASM_FINISH_DECLARE_OBJECT): Likewise.

        * arm/thumb.c (thumb_function_prologue): Likewise.

        * arm/thumb.h (ASM_OUTPUT_ASCII): Likewise.

        * avr/avr.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * clipper/clix.h (ASM_OUTPUT_ASCII): Likewise.

        * fx80/fx80.h (ASM_OUTPUT_ASCII): Likewise.

        * i386/cygwin.h (ASM_OUTPUT_SECTION_NAME): Likewise.

        * i386/freebsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * i386/i386-interix.h (ASM_OUTPUT_LIMITED_STRING,
        ASM_OUTPUT_ASCII, ASM_OUTPUT_SECTION_NAME): Likewise.

        * i386/i386-protos.h (asm_output_function_prefix): Likewise.

        * i386/i386.c (asm_output_function_prefix): Likewise.

        * i386/i386elf.h (ASM_OUTPUT_ASCII): Likewise.

        * i386/osfrose.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * i386/ptx4-i.h (ASM_OUTPUT_ASCII): Likewise.

        * i386/sco5.h (ASM_FINISH_DECLARE_OBJECT,
        ASM_OUTPUT_LIMITED_STRING, ASM_OUTPUT_ASCII,
        ASM_OUTPUT_SECTION_NAME): Likewise.

        * i386/sysv4.h (ASM_OUTPUT_ASCII): Likewise.

        * i860/paragon.h (ASM_OUTPUT_ASCII): Likewise.

        * i860/sysv3.h (ASM_OUTPUT_ASCII): Likewise.

        * m32r/m32r.c (m32r_encode_section_info): Likewise.

        * mcore-elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * mcore/mcore.c (mcore_encode_section_info): Likewise.

        * mips/elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * mips/elf64.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * mips/iris6.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * mips/mips.h (ASM_OUTPUT_IDENT): Likewise.

        * mips/mips.md (movdi, movsi): Likewise.

        * mips/netbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * netbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * openbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * ptx4.h (ASM_FINISH_DECLARE_OBJECT, ASM_OUTPUT_LIMITED_STRING,
        ASM_OUTPUT_ASCII): Likewise.

        * rs6000/rs6000.c (rs6000_allocate_stack_space, output_epilog,
        output_mi_thunk, output_toc): Likewise.

        * rs6000/rs6000.md (movsi): Likewise.

        * rs6000/sysv4.h (ASM_OUTPUT_INT, ASM_OUTPUT_SECTION_NAME): Likewise.

        * tahoe/harris.h (ASM_OUTPUT_ASCII): Likewise.

        * v850/v850.c (print_operand, print_operand_address,
        v850_encode_data_area): Likewise.

2000-03-07  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.md (zero_extendsidi2): Always force operand
        one to memory for mips16.

Mon Mar  6 15:22:29 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.h (INT_CST_LT, INT_CST_LT_UNSIGNED): Remove unneeded casts.
        (struct tree_int_cst): int_cst_low is now unsigned HOST_WIDE_INT.
        (attribute_hash_list, type_hash_canon): hashcode is now unsigned.
        (type_hash_lookup, type_hash_add, type_hash_list): Likewise.
        (min_precision): Result is unsigned.
        (add_double, neg_double, mul_double): Low word is unsigned.
        (lshift_double, rshift_double, lrotate_double): Likewise.
        (rrotate_double, div_and_round_double): Likewise.
        (tree_floor_log2, compare_tree_int): New functions.
        (preserve_rtl_expr_temps): New declaration.
        * c-common.c (declare_hidden_char_array): Use compare_tree_int.
        (decl_attributes): Use tree_log2 to find alignment.
        Check for TREE_INT_CST_HIGH for format args.
        (min_precision): Now unsigned.
        Use tree_floor_log2.
        (truthvalue_conversion): Delete long-disabled code.
        * c-decl.c (finish_struct): Clean up tests on field width.
        (finish_function): Use compare_tree_int.
        * c-pragma.c (handle_pragma_token): Use tree_log2 for alignment.
        * c-typeck.c (comptypes): Use tree_int_cst_equal.
        (default_conversion, digest_init): Use compare_tree_int.
        (build_binary_op): Use integer_all_onesp and compare_tree_int.
        Fix type errors in forming masks.
        * calls.c (initialize_argument_information): Use compare_tree_int.
        * dbxout.c (dbxout_type): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
        * except.c (expand_eh_region_start_tree): Use compare_tree_int.
        * expr.c (is_zeros_p, case INTEGER_CST): Use integer_zerop.
        (store_field): Use compare_tree_int.
        (expand_expr, case CONSTRUCTOR): Use TYPE_SIZE_UNIT.
        (expand_expr, case ARRAY_REF): Use compare_tree_int.
        (do_jump, case BIT_AND_EXPR): Use tree_floor_log2.
        (do_store_flag): Use compare_tree_int.
        * fold-const.c (encode, decode): Low part is always unsigned.
        (force_fit_type, add_double, neg_double, mul_double): Likewise.
        (lshift_double, rshift_double, lrotate_double): Likewise.
        (rrotate_double, div_and_round_double, int_const_binop): Likewise.
        (fold_convert): Use compare_tree_int.
        (operand_equal_p, case INTEGER_CST): Use tree_int_cst_equal.
        (invert_truthvalue, case INTEGER_CST): Likewise.
        (fold): Use compare_tree_int; add casts for unsigned TREE_INT_CST_LOW.
        * mkdeps.c (deps_dummy_targets): Make I unsigned.
        * rtl.h (add_double, neg_double, mul_double): Low words are unsigned.
        (lshift_double, rshift_double, lrotate_double, rrotate_double):
        Likewise.
        * stmt.c (expand_decl): Use compare_tree_int and mode_for_size_tree.
        (expand_end_case): Use compare_tree_int.
        (estimate_case_costs): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
        * stor-layout.c (mode_for_size_tree): Use compare_tree_int.
        (layout_decl): Likewise.
        (layout_record, layout_union): Make sizes unsigned.
        (layout_type, case VOID_TYPE): TYPE_SIZE must be bitsizetype.
        (layout_type, case QUAL_UNION_TYPE): Use compare_tree_int.
        * tree.c (struct type_hash): hashcode is unsigned.
        (build_type_attribute_variant, type_hash_list): Likewise.
        (type_hash_lookup, type_hash_add, type_hash_canon): Likewise.
        (attribute_hash_list, build_array_type, build_method_type): Likewise.
        (build_complex_type): Likewise.
        (real_value_from_int_cst): Remove unneeded casts.
        (integer_all_onesp): Add casts.
        (tree_floor_log2, compare_tree_int): New functions.
        (build_index_type): Use tree_int_cst_sgn.
        * varasm.c (assemble_variable): Use compare_tree_int.

2000-03-06  Jason Merrill  <jason@casey.cygnus.com>

        * cpphash.c (collect_expansion): Also catch ## at start of macro.

        * varasm.c (make_decl_rtl): Don't add a number to members of
        local classes.
        (make_function_rtl): Likewise.

2000-03-06  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * gcse.c (compute_can_copy): Adjust if/else blocks from rth's
        patch from 2000-01-28.

2000-03-06  Clinton Popetz  <cpopetz@cygnus.com>

        * config/sh/sh.c: (barrier_align): Handle a delay slot that is
        filled with an insn from the jump target.

2000-03-07  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x-protos.h (c4x_global_name): Constify char *.
        (c4x_external_ref): Likewise.
        * config/c4x/c4x.c (struct name_list): Likewise.

1999-12-16  Ben Collins  <bcollins@debian.org>

        * Makefile.in: Pass a new MULTILIB_EXCLUSIONS option as the sixth
        argument to genmultilib.
        * genmultilib: accept new MULTILIB_EXCLUSIONS option and output
        the contents into the multilib.h header.
        * gcc.c: Declare multilib_exclusions for the specs file.
        (set_multilib_dir): Use it.
        (print_multilib_info): Likewise.
        * t-linux64: Declare arguments for new MULTILIB_EXCLUSIONS option
        to pass to genmultilib.

2000-03-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (built_in_class_names, built_in_names): Constify a
        char*.

        * gmon-sol2.c (monstartup, moncontrol): Cast ptrs to long, not
        int.
        (_mcleanup): Ensure value matches format specifier in sprintf.

        * cpphash.c (special_symbol): Don't needlessly cast away
        const-ness.

        * cppinit.c (base_name): Delete unused prototype.

        * mkdeps.c (deps_init): Make definition K&R safe.

        * tree.h (built_in_class_names, built_in_names): Constify a
        char*.

2000-03-06  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (eligible_for_epilogue_delay): Accept
        floating point instructions for epilogue delay.

        * config/sparc/sparc.h (ASM_ARCH64_SPEC): Pass -no-undeclared-regs
        to gas if it supports .register pseudo.

        * real.h (MAX_LONG_DOUBLE_TYPE_SIZE): Define to
        LONG_DOUBLE_TYPE_SIZE if not defined.
        Use MAX_LONG_DOUBLE_TYPE_SIZE instead of
        LONG_DOUBLE_TYPE_SIZE in preprocessor if clauses.
        * real.c: Likewise.
        * gengenrtl.c: Likewise.
        * print-rtl.c: Likewise.
        * rtl.c: Likewise.
        * config/sparc/sol2-sld-64.h (TARGET_DEFAULT): Set
        MASK_LONG_DOUBLE_128.
        * config/sparc/sol2.h (TARGET_DEFAULT): Likewise.
        * config/sparc/sp64-elf.h (TARGET_DEFAULT): Likewise.
        * config/sparc/linux64 (TARGET_DEFAULT): Likewise.
        (SUBTARGET_SWITCHES): Define.
        (CPP_ARCH32_SPEC): Define __LONG_DOUBLE_128__ if compiling
        with -mlong-double-128.
        (LONG_DOUBLE_TYPE_SIZE): Define depending on target_flags.
        (MAX_LONG_DOUBLE_TYPE_SIZE): Define.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define depending on CPP macros.
        (CC1_SPEC): Include -mlong-double-{64,128} as needed.
        * config/sparc/linux.h (SUBTARGET_SWITCHES): Define.
        (CPP_SUBTARGET_SPEC): Define __LONG_DOUBLE_128__ if compiling
        with -mlong-double-128.
        (LONG_DOUBLE_TYPE_SIZE): Define depending on target_flags.
        (MAX_LONG_DOUBLE_TYPE_SIZE): Define.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define depending on CPP macros.
        * config/sparc/sparc.h (MASK_LONG_DOUBLE_128,
        TARGET_LONG_DOUBLE_128): Define.
        * config/sparc/linux-aout.h (LONG_DOUBLE_TYPE_SIZE): Remove.
        * config/sparc/sparc.c (sparc_override_options): Disallow 64bit
        long double on TARGET_ARCH64.

2000-03-06  Mark Mitchell  <mark@codesourcery.com>

        * function.c (free_temps_for_rtl_expr): Don't free slots
        that have been pushed into a higher level.

        Revert this patch:
        2000-03-05  Mark Mitchell  <mark@codesourcery.com>

2000-03-05  Mark Mitchell  <mark@codesourcery.com>

        * basic-block.h (ALLOCA_REG_SET): Remove.
        (INITIALIZE_REG_SET): New macro.
        * flow.c (update_life_info): Use it.
        (calculate_global_regs_live): Likewise.
        (propagate_block): Likewise.
        * global.c (build_insn_chain): Likewise.
        * haifa-sched.c (schedule_region): Likewise.

2000-03-05  Stephane Carrez  <stcarrez@worldnet.fr>

        * dwarf2out.c (UNALIGNED_WORD_ASM_OP): Support 2 bytes pointer.
        (ASM_OUTPUT_DWARF_ADDR_CONST): Use UNALIGNED_WORD_ASM_OP.
        (DWARF_ARANGES_PAD_SIZE): New define.
        (output_aranges): Use it to pad the address range header.
        (DWARF_ROUND): Fix for non power of 2 rounding.

2000-03-05  Jason Merrill  <jason@casey.cygnus.com>

        * mkdeps.c (deps_calc_target): Remove incorrect 'const'.

2000-03-05  Mark Mitchell  <mark@codesourcery.com>

        * tree.def (RTL_EXPR): Update documentation.
        * tree.h (RTL_EXPR_HAS_NO_SCOPE): New macro.
        * expr.c (expand_expr): Handle RTL_EXPR_HAS_NO_SCOPE.
        * function.c (preserve_rtl_expr_temp): New function.
        (preserve_rtl_expr_temps): Likewise.
        (preserve_rtl_expr_result): Use it.

        Revert this patch:
        2000-03-04  Mark Mitchell  <mark@codesourcery.com>

2000-03-04  Thomas Schuster <Thomas.Schuster@gmx.net>

        * regmove.c (copy_src_to_dest)  Do not create src->dest move
        for unchanging destination.

2000-03-04  Mark Mitchell  <mark@codesourcery.com>

        * function.h (struct sequence_stack): Remove rtl_expr.
        (struct emit_staus): Likewise.
        (seq_rtl_expr): Remove.
        * tree.h (free_temps_for_rtl_expr): Don't declare.
        (start_sequence_for_rtl_expr): Likewise.
        * rtl.h (preserve_rtl_expr_result): Likewise.
        * emit-rtl.c (start_sequence): Don't set sequence_rtl_expr.
        (start_sequence_for_rtl_expr): Remove.
        (push_topmost_sequence): Don't save sequence_rtl_expr.
        (pop_topmost_sequence): Remove comment about not restoring it.
        (end_sequence): Don't set seq_rtl_expr.
        (init_emit): Don't initialize it.
        (mark_sequence_stack): Don't mark it.
        (mark_emit_status): Likewise.
        * except.c (protect_with_terminate): Use
        start_sequence_for_rtl_expr, not start_sequence.
        * expr.c (expand_expr, case RTL_EXPR): Don't call
        preserve_rtl_expr_result or free_temps_for_rtl_expr.
        * function.c (assign_stack_temp_for_type): Don't set rtl_expr.
        (preserve_rtl_expr_result): Remove.
        (free_temps_for_rtl_expr): Likewise.
        (pop_temp_slots): Likewise.
        (mark_temp_slot): Don't mark the rtl_expr.
        * stmt.c (expand_start_stmt_expr): Use start_sequence, not
        start_sequence_for_rtl_expr.

2000-03-04  Zack Weinberg  <zack@wolery.cumb.org>

        * mkdeps.c, mkdeps.h: New files.
        * po/POTFILES.in: Add them.
        * Makefile.in (LIBCPP_OBJS): Add mkdeps.o.
        (cpplib.o, cppinit.o): Depend on mkdeps.h.
        (mkdeps.o): New target.

        * cppfiles.c: Delete deps_output.
        * cppinit.c: Include mkdeps.h.  Delete known_suffixes,
        OBJECT_SUFFIX, and base_name.
        (cpp_cleanup): Use deps_free.  Free ihash->name when clearing
        the include hash.
        (initialize_dependency_output): Use deps_init,
        deps_add_target, deps_calc_target, and deps_add_dep.  Remove
        all the unnecessary string bashing.
        (cpp_finish): Use deps_write.  Remove an unnecessary nesting
        level.
        * cpplib.c (do_include): Use deps_add_dep.
        * cpplib.h (struct cpp_reader): Replace deps_buffer,
        deps_allocated_size, deps_size, deps_column members with
        single pointer to a struct deps.  Delete prototype of
        deps_output.

        * cppinit.c: Fix thinko in previous patch.

Sat Mar  4 11:32:30 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * machmode.h (mode_for_size, smallest_mode_for_size): SIZE now signed.
        * stor-layout.c (mode_for_size, smallest_mode_for_size): Likewise.
        (mode_for_size_tree): New function.
        (layout_decl, layout_type): Call it and clean up BLKmode checks.
        * tree.h (mode_for_size_tree): New declaration.

        * toplev.c (debug_ignore_block): Mark arg BLOCK as possibly unused.

2000-03-04  Jason Merrill  <jason@casey.cygnus.com>

        * stmt.c (is_body_block): Move...
        * dwarfout.c, dwarf2out.c: ...from here.
        * tree.h: Declare it.
        * emit-rtl.c (remove_unncessary_notes): Don't remove the body block.
        * final.c (final_start_function): Do call remove_unnecessary_notes
        when scheduling.

2000-03-03  Zack Weinberg  <zack@wolery.cumb.org>

        * config/vax/xm-vms.h: Define OBJECT_SUFFIX and EXECUTABLE_SUFFIX.

        * cpplib.h (_dollar_ok): New macro.
        (is_idchar, is_idstart): Use it.
        (IStable): Rename to _cpp_IStable.  Declare it const if
        gcc >=2.7 or C99.  Delete all references to FAKE_CONST.
        (is_idchar, is_idstart, is_numchar, is_numstart, is_hspace,
        is_space): Update for renamed IStable.

        * cppinit.c: Delete all references to FAKE_CONST and CAT
        macros. Define init_IStable as empty macro if gcc >=2.7 or
        C99. Change TABLE() to ISTABLE and hardcode name of table.
        (cpp_start_read): Don't change the IStable based on
        dollars_in_ident.

        * cpphash.c (unsafe_chars): Add pfile argument.  All callers
        changed.  Handle '$' for char1 correctly.
        * cpplib.c (cpp_get_token): Use is_numchar when parsing numbers.

        * cppexp.c (tokentab2): Make const.
        (cpp_lex): Make toktab const.
        * cppinit.c (include_defaults_array): Make const.
        (initialize_standard_includes): Make default_include const.

2000-03-03  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (dwarf2out_frame_debug): Add cast to silence warning.
        (dwarf2out_decl): Functions can now have DECL_IGNORED_P.
        (gen_decl_die): Likewise.
        * dwarfout.c (dwarfout_file_scope_decl): Likewise.
        (output_decl): Likewise.

        * varasm.c (make_function_rtl): If we change the name used in the
        rtl, update DECL_ASSEMBLER_NAME accordingly.
        (make_decl_rtl): Likewise.

        * toplev.c (rest_of_compilation): Tweak formatting.

        * toplev.c (rest_of_compilation): find_loop_tree_blocks before
        remove_unnecessary_notes.
        (debug_ignore_block): New fn.
        * toplev.h: Declare it.
        * emit-rtl.c (remove_unncessary_notes): Call it.
        * dwarf2out.c (dwarf2out_ignore_block): New fn.
        * dwarf2out.h: Declare it.
        * final.c (final_start_function): Don't call remove_unnecessary_notes
        if we did insn scheduling.

2000-03-03  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c (cpp_handle_option): Set opts->pedantic directly.
        * cpplib.h: Delete SET_CPP_PEDANTIC.

Fri Mar  3 14:56:12 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (expand_expr, case COMPONENT_REF): Use bitfield case if
        result is a RECORD_TYPE.

2000-03-03  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * mips/elf.h (CTOR_LISTS_DEFINED_EXTERNALLY): Added.

2000-03-03  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_set_const_1): Re-order cases to prefer
        addition over compliments over shifts.

Fri Mar  3 12:49:28 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine_note_use): Handle return register USEs.
        REG case: Handle multi-hard-register hard regs.

Fri Mar  3 07:38:34 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * md.texi: Document use of '*' in insn pattern name.

2000-03-03  Jason Merrill  <jason@casey.cygnus.com>

        * calls.c (special_function_p): operator new may not be malloc-like.

        * gcse.c (dump_hash_table): Really fix error in last change.

2000-03-02  Denis Chertykov  <denisc@overta.ru>

        * avr.c (print_operand): Use print_operand_address instead of
        output_addr_const.
        * avr/libgcc.S: Cleanup code.

2000-03-02  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_set_const_1): Also try c + small constant.

2000-03-02  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (TYPE_ALIGN_UNIT): New macro.

2000-03-02  Clinton Popetz  <cpopetz@cygnus.com>

        * i386.c: (constant_call_address_operand): Reject CONST_INT.

2000-03-02  Jason Merrill  <jason@casey.cygnus.com>

        * cpplib.h (CPP_PEDANTIC): Only true if system_header_p is not set
        for the buffer.
        (SET_CPP_PEDANTIC): New macro.
        * cpplib.c (do_include): Don't bother checking system_header_p.
        (do_warning, do_ident, do_assert, do_unassert): Likewise.
        * cppinit.c (cpp_handle_option): Use SET_CPP_PEDANTIC.

        * function.h (struct expr_status): Add x_arg_space_so_far.
        (arg_space_so_far): New macro.
        * expr.c (init_expr): Initialize it.
        * calls.c (emit_call_1): Reset it.
        (compute_argument_block_size, expand_call): Use it.
        (expand_call, store_one_arg): Increment it.

Thu Mar  2 17:27:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * varasm.c (output_constant): Strip off a CONVERT_EXPR to
        a UNION_TYPE.

2000-03-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (cpp_read_file): New function.

        * cpphash.c (collect_expansion): Make sure to reset last_token
        to NORM when we hit a string.  Handle trailing whitespace
        properly when the expansion is empty.
        (create_definition): Disable line commands while parsing the
        directive line.
        (dump_definition): If pfile->lineno == 0, output a line
        command ahead of the dump, and add a trailing newline.

        * cppinit.c (append_include_chain): Add fifth argument, which
        indicates whether or not system headers are C++ aware.
        (initialize_standard_includes): New function,
        broken out of read_and_prescan.  Pass 'cxx_aware' value from
        the include_defaults_array on to append_include_chain.
        (dump_special_to_buffer): Const-ify char array.
        (builtin_array): Don't dump __BASE_FILE__.
        (cpp_start_read): Use cpp_read_file.  Reorder code for
        clarity.  Don't output line commands here for -D/-A/-U
        switches.  Don't call deps_output for files included with
        -include or -imacros.

        * cpplib.c (do_define): Don't pay any attention to the second
        argument.
        (cpp_expand_to_buffer): Disable line commands while scanning.
        (output_line_command): Work in the file buffer.
        * cpplib.h: Remove no_record_file flag from struct cpp_reader.
        Fix formatting of comments.  Prototype cpp_read_file.

Thu Mar  2 13:29:46 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-common.c (c_common_nodes_and_builtins): Make sizetype_endlink
        reference the language-equivalent of sizetype.
        * c-typeck.c (comptypes): Treat sizetype like its language equivalent.
        * fold-const.c (size_binop, size_diffop): Put back checks.
        * gcse.c (dump_hash_table): Fix minor error in last change.
        * stor-layout.c (set_sizetype): Set TYPE_DOMAIN of sizetype.
        Clear TYPE_{NEXT,MAIN}_VARIANT and TYPE_{POINTER,REFERENCE}_to of
        all sizetypes.

Thu Mar  2 12:48:45 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (expand_call)  Do not attempt to combine stack adjustments
        with inhibit_defer_pop set.

2000-03-01  Mark Mitchell  <mark@codesourcery.com>

        * stor-layout.c (layout_decl): Allow front-ends to explicitly set
        the DECL_SIZE for a FIELD_DECL.

2000-03-01  Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.tpl: remove unused symlinks
        * fixinc/README: GCC Maintainer info
        * fixinc/inclhack.sh: regen
        * fixinc/fixincl.sh: regen

2000-03-01  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (collect_expansion): Trim trailing white space
        from macro definitions, but don't go past the last insertion
        point.

Wed Mar  1 12:14:31 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (mulqi3): New pattern.

2000-02-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New
        token types.
        (struct cpp_reader): Add parsing_if_directive and
        parsing_define_directive flags.
        (struct cpp_options): Remove output_conditionals flag.
        (check_macro_name): Delete prototype.

        * cpphash.h (struct macrodef): Delete.
        (struct reflist): Separate from struct definition.
        (struct definition): Remove unused fields.  Add column number.
        (create_definition): Returns a DEFINITION *.  Takes a
        cpp_reader * and an int.

        * cpphash.c (SKIP_WHITE_SPACE): Delete.
        (PEEKC): Copy defn from cpplib.c.
        (rest_extension, REST_EXTENSION_LENGTH): Delete.
        (struct arg): New.
        (struct arglist): Simplify.
        (collect_expansion): Rewrite.  Get tokens by calling
        cpp_get_token.  Add more error checking.
        (collect_formal_parameters): New function, broken out of
        create_definition and reworked to use get_directive_token.
        (create_definition): All real work is now in collect_expansion
        and collect_formal_parameters.  do_define handles finding the
        macro name.  Return a DEFINITION, not a MACRODEF.
        (macroexpand): Replace bcopy with memcpy throughout.  Replace
        character-at-a-time copy loop with memcpy and pointer increments.
        (compare-defs): d1->argnames / d2->argnames might be null.

        * cpplib.c (copy_rest_of_line): Delete function.
        (skip_rest_of_line): Do all the work ourselves.
        (skip_string): New function.
        (parse_string): Use skip_string.
        (get_macro_name): New function.
        (check_macro_name): Delete.
        (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q.
        (cpp_skip_hspace): Use CPP_BUMP_LINE.
        (handle_directive): ICE if we're called on a macro buffer.
        (do_define): Determine macro name and type (funlike/objlike)
        here.  Expunge all uses of MACRODEF.
        (cpp_push_buffer): Set line_base to NULL.
        (do_undef, read_line_number): Don't worry about getting a POP token.
        (eval_if_expression): Set/reset parsing_if_directive around
        cpp_parse_expr. Don't clear only_seen_white.
        (skip_if_group): Remove output_conditionals logic.  Use
        skip_rest_of_line.
        (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE
        tokens under appropriate conditions.
        (cpp_unassert): Call do_unassert not do_assert.  Oops.

        * cppexp.c (parse_defined): New function, break out of
        cpp_lex.
        (cpp_lex): We now get CPP_ASSERTION tokens and can check them
        ourselves, with cpp_defined.
        * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput.

        * gcc.dg/20000209-2.c: Turn off -pedantic-errors.
        * gcc.dg/strpaste-2.c: New.

2000-02-29  Mark Mitchell  <mark@codesourcery.com>

        * fold-const.c (size_binop): Don't asert inputs are the same and
        have TYPE_IS_SIZETYPE set.
        (size_diffop): Likewise.

2000-02-29  Jason Merrill  <jason@casey.cygnus.com>

        * dwarfout.c (output_block): Output abstract blocks even if they
        don't have TREE_ASM_WRITTEN set.

        * calls.c (emit_library_call): Check for null REG.

2000-03-01  Martin von Loewis  <loewis@informatik.hu-berlin.de>

        * c-decl.c (current_function_decl): Move to toplev.c.
        (init_decl_processing): Don't add current_function_decl as a ggc
        root here.
        * dbxout.c (dbxout_symbol): Change return type to int.
        (dbxout_symbol_location, dbxout_syms): Likewise.
        (dbxout_block): Don't emit LBRAC/RBRAC pairs for blocks without
        any locals. Use current_function_func_begin_label if set.
        * dbxout.h (dbxout_symbol, dbxout_syms): Change return type.
        * dwarf2out.c (dwarf2out_begin_prologue): Set
        current_function_func_begin_label.
        * final.c (final_start_function): Reset it.
        * toplev.c (current_function_decl): Define it here.
        (current_function_func_begin_label): New variable.
        (main): Add both as ggc roots.
        * tree.h (current_function_func_begin_label): Declare.

Tue Feb 29 14:07:04 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gcse.c: Cleanups throughout: mostly white-space, but also
        some minor rearrangement of code.

Tue Feb 29 10:45:59 2000  Jeffrey A Law  (law@cygnus.com)

        * calls.c (emit_library_call): Do not abort if FUNCTION_ARG
        returns a PARALLEL.  Use emit_group_load and use_group_regs
        as needed.
        (emit_library_call_value): Similarly.

        * pa/t-pa: Use quadlib.c instead of quadlib.asm.
        * pa/quadlib.asm: Remove.
        * pa/quadlib.c: New file.

        * configure.in (hpux10, hpux11, PA32 mode): Use i128 float format.
        * configure: Rebuilt.

2000-02-29  Philip Blundell  <pb@futuretv.com>

        * config/arm/conix-elf.h: New file.
        * configure.in (arm*-*-conix*): New configuration.
        * configure: Regenerate.

2000-02-28  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (gen_block_die): Output abstract blocks even if they
        don't have TREE_ASM_WRITTEN set.

Mon Feb 28 21:07:59 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * Eliminate DECL_FIELD_SIZE.
        * builtins.c (built_in_class_names, built_in_names): New variables.
        * c-decl.c (finish_struct): Set specified size in DECL_SIZE.
        * expr.c (expand_expr, case COMPONENT_REF): Get field size from
        DECL_SIZE, not DECL_FIELD_SIZE.
        * print-tree.c (print_node): Remove code that prints extra blank
        lines in some cases.
        Properly handle inline and builtin function cases.
        * stor-layout.c (layout_decl): Get specified size from DEC_SIZE.
        * tree.h (built_in_class_named, built_in_names): New declarations.
        (union tree_decl): Rename internal unions to u1 and u2 and change
        some of their components.
        Add new field built_in_class.
        (DECL_ALIGN, DECL_INCOMING_RTL, DECL_SAVED_INSNS, DECL_FRAME_SIZE):
        Reflect above changes.
        (DECL_FUNCTION_CODE, DECL_BUILT_IN_CLASS): Likewise.
        (DECL_SET_FUNCTION_CODE, DECL_FIELD_SIZE): Deleted.
        * objc/objc-act.c (objc_copy_list): Use DECL_SIZE, not DECL_FIELD_SIZE.
        (encode_field_decl): Likewise; also remove obsolete test for bitfield.

2000-02-28  Dmitri Makarov  <dim@windriver.com>

        * extend.texi: Document ARM's support for long/short calls.

        * invoke.texi: Document ARM's -mlong-calls command line switch.

        * config/arm/arm-protos.h (arm_is_longcall_p): Add prototype.
        (arm_encode_call_attribute): Add prototype.
        (arm_set_default_type_attribute): Add prototype.
        (arm_strip_name_encoding): Add prototype.

        * config/arm/arm.c (arm_init_cumulative_args): replace
        initialisation og 'long_calls' field with initialisation of
        'call_cookie' field.
        (enum arm_pragma_enum): New enum.
        (arm_pragma_long_calls): New static variable.
        (arm_process_pragma): Also process "#pragma long_calls_off".
        (arm_valid_type_attribute_p): Accept short_call attribute.
        (arm_comp_type_attributes): Check long/short call attributes.
        (arm_encode_call_attribute):  New function:  Encode long_call
        or short_call attribute in function name.
        (arm_set_default_type_attributes): New function: Assign
        default attributes to newly defined type.
        (current_file_function_operand): New function: Return true if
        the symbol is a function which has already been compiled.
        (arm_is_longcall_p): New function: Return true if the
        indicated function should be called via a long call.
        (arm_get_strip_length): New function.  Returns number of
        prefix characters to be stripped from a function's name.
        (arm_strip_name_encoding): New function.  Strip prefix characters
        from a function's name.

        * config/arm/arm.h (CUMULATIVE_ARGS): Replace 'long_call' field
        with 'call_cookie'.
        (SHORT_CALL_FAG_CHAR): Define.
        (LONG_CALL_FAG_CHAR): Define.
        (ENCODED_SHORT_CALL_ATTR_P): Define.
        (ENCODED_LONG_CALL_ATTR_P): Define.
        (ARM_NAME_ENCODING_LENGTHS): Define.
        (STRIP_NAME_ENCODING): Define.
        (ASM_OUTPUT_LABELREF): Define, and use to strip name encoding.
        (ARM_ENCODE_CALL_TYPE): Define.
        (ENCODE_SECTION): Invoke ARM_ENCODE_CALL_TYPE.
        (ARM_DECLARE_FUNCTION_SIZE): Define.
        (SET_DEFAULT_TYPE_ATTRIBUTES): Define.

        * config/arm/arm.md (call): Call arm_is_longcall_p to decide
        if a long call is needed.
        (call_value): Ditto.
        (call_symbol): Ditto.

        * config/arm/elf.h (ASM_DECLARE_FUNCTION_SIZE): Add invocation of
        ARM_DECLARE_FUNCTION_SIZE.

        * config/arm/pe.h (ARM_PE_FLAG_CHAR): Define.
        (SUBTARGET_NAME_ENCODING_LENGTHS): Define.
        (ARM_STRIP_NAME_ENCODING): Undefine.
        (STRIP_NAME_ENCODING): Undefine.
        (ASM_OUTPUT_LABELREF): Use arm_strip_name_encoding.
        (ASM_DECLARE_FUNCTION_NAME): Ditto.
        (ASM_OUTPUT_COMMON): Ditto.
        (ASM_DECLARE_OBJECT_NAME): Ditto.

        * config/arm/pe.c (arm_dllexport_name_p): Check for
        ARM_PE_FLAG_CHAR.
        (arm_dllimport_name_p): Ditto.
        (arm_mark_dllexport): Use ARM_PE_FLAG_CHAR.
        (arm_mark_dllimport): Ditto.

Mon Feb 28 22:11:12 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (DWARF_LINE_MIN_INSTR_LENGTH): Define.

2000-02-28  Mark Mitchell  <mark@codesourcery.com>

        * xcoffout.c (xcoffout_begin_function): Fix typo in previous change.

2000-02-28  Zack Weinberg  <zack@wolery.cumb.org>

        * tm.texi: Document new target switch, NO_BUILTIN_WCHAR_TYPE.
        * cppinit.c (builtin_array): Define __WCHAR_TYPE__ only if
        NO_BUILTIN_WCHAR_TYPE is not defined.
        (CPP_WCHAR_TYPE): Delete.
        * cccp.c (main): Don't change wchar_type if cplusplus.
        (special_symbol, initialize_builtins): Honor NO_BUILTIN_WCHAR_TYPE.

2000-02-28  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm-wince-pe.h (SIZE_TYPE): Define to "unsigned long".

Mon Feb 28 14:21:15 2000  Catherine Moore  <clm@cygnus.com>

        * config/pa/som.h (MAKE_DECL_ONE_ONLY): Define.
        (ASM_WEAKEN_LABEL): Define.

Mon Feb 28 13:07:19 MET 2000  Jan Hubicka  <jh@suse.cz>

        * expr.c (store_constructor): Do not emit USE.
        * rtl.h (stupid_life_analysis): Remove.

Mon Feb 28 07:03:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (number_blocks): Reset next_block_index based on
        what debugging format is used, not what is defined.

        * lcm.c: Minor reformatting throughout.
        (reg_dies, reg_becomes_live): Properly handle multiple hard regs.

        * toplev.c (rest_of_compilation): Account for time in
        optimize_mode_switching.

        * jump.c (jump_optimize_1): Don't call delete_barrier_successors
        if only marking labels.

Mon Feb 28 12:53:57 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (expand_call): Attempt to combine stack adjustments with
        pending stack adjustments.

Mon Feb 28 11:34:43 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (reg_in_basic_block_p): Don't abort when falling through
        to the end of the function.

2000-02-27  Mark Mitchell  <mark@codesourcery.com>

        * emit-rtl.c (remove_unncessary_notes): Remove notes for empty
        blocks.
        * final.c (next_block_index): Remove.
        (max_block_depth): Likewise.
        (pending_blocks): Likewise.
        (init_final): Don't initialize them.
        (final_start_function): Don't set next_block_index.  Set up
        BLOCK_NUMBER.
        (final_scan_insn): Use BLOCK_NUMBER, not next_block_index.
        * function.h (number_blocks): New function.
        * function.c (get_block_vector): New function.
        (identify_blocks): Use it.
        (reorder_blocks): Set NOTE_BLOCK.
        (number_blocks): New function.
        * tree.def (BLOCK): Add documentation for TREE_ASM_WRITTEN flag.
        * tree.h (BLOCK_NUMBER): New macro.
        (tree_block): Add block_num field.
        * dbxout.c (next_block_number): Remove.
        (dbxout_init): Don't set it.
        (dbxout_block): Only output blocks that have TREE_ASM_WRITTEN
        set.  Use BLOCK_NUMBER, rather than next_block_num, to determine
        block numbers.
        * toplev.c (rest_of_compilation): Always call
        find_loop_tree_blocks.  Fix indentation.
        * dwarf2out.c (next_block_number): Remove.
        (gen_lexical_block_die): Use BLOCK_NUMBER, not next_block_number,
        to determine block numbers.
        (gen_inlined_subroutine_die): Likewise.
        (gen_block_die): Only output blocks that have TREE_ASM_WRITTEN set.
        (decls_for_scope): Don't increment next_block_number.
        * dwarfout.c (next_block_number): Remove.
        (output_lexical_block_die): Use BLOCK_NUMBER, not next_block_number,
        to determine block numbers.
        (output_inlined_subroutine_die): Likewise.
        (output_block): Only output blocks that have TREE_ASM_WRITTEN set.
        (output_decls_for_scope): Don't increment next_block_number.
        * sdbout.c (next_block_number): Remove.
        (sdbout_block): Use BLOCK_NUMBER.
        (sdbout_begin_block): Simplify.
        * xcoffout.c (next_block_number): Remove.
        (xcoffout_block): Use BLOCK_NUMBER, not next_block_number.
        (xcoffout_begin_block): Don't set next_block_number.
        (xcoffout_begin_function): Likewise. Use BLOCK_NUMBER, not
        next_block_number.

Sun Feb 27 16:40:33 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * builtins.c (c_strlen): Use size_diffop and return ssizetype value.
        (expand_builtin_strcpy): Pass correct type to size_binop.
        (expand_builtin_strcmp): Likewise.
        Clean up conditional structure.
        * c-decl.c (init_decl_processing): Don't call set_sizetype twice.
        (complete_array_type): Don't use size_binop for MAXINDEX.
        * c-typeck.c (c_sizeof): Use size_one_node and TYPE_SIZE_UNIT.
        (c_sizeof_nowarn, c_size_in_bytes): Likewise.
        (c_alignof): Use size_one_node.
        (build_unary_op): Pass arg of proper type to size_binop.
        (really_start_incremental_init, push_init_level): Use sizetype for
        constructor{,_bit,_unfilled}_index.
        (pop_init_label, output_init_element): Likewise.
        (output_pending_init_elements, process_init_element): Likewise.
        * calls.c (compute_argument_block_size): Field VAR is ssizetype.
        * expr.c (store_expr): Use size_int.
        (store_constructor): Use proper types for size_binop args.
        (get_inner_reference, expand_expr, case ARRAY_REF): Likewise.
        (expand_expr_unaligned): Likewise.
        (string_contant): Return object of sizetype.
        * expr.h (SUB_PARM_SIZE): Call size_diffop and pass proper types.
        (ARGS_SIZE_RTX): Call ARGS_SIZE_TREE.
        (ARGS_SIZE_TREE): Pass proper types to size_binop.
        * fold-const.c (int_const_binop): Refine when size_int is called.
        (fold_convert): Likewise.
        (size_int_wide): Rework to take KIND as arg, only take low order
        bits, handle new sizetype_tab datatype, and chain entries in
        size_table.
        (size_int_type_wide): New function.
        (size_binop): Validate types of arguments.
        (ssize_binop): Deleted.
        (size_diffop): New function.
        (extract_muldiv): Only fold division into multiplication for sizetypes.
        * function.c (assign_parms): Use size_diffop and make sure
        VAR field is of ssizetype; also pass proper type to size_binop.
        (locate_and_pad_parm, pad_to_arg_alignment): Likewise.
        (round_down): Deleted from here.
        * store-layout.c (sizetype_tab): Now an array.
        (sizetype_set, early_root_list): New variables.
        (variable_size): Use size_one_node.
        (round_up): Pass proper type to size_binop.
        (round_down): Moved to here and corrected as above.
        (layout_record): Pass proper arg types to size_binop.
        (layout_type): Likewise.
        If sizetype_set is zero, record the type just laid out.
        (make_unsigned_type): Don't call set_sizetype;
        (make_signed_type): Likewise; also, call fixup_signed_type.
        (initialize_sizetypes): New function.
        (set_sizetype): Make copy of types, set TYPE_IS_SIZETYPE, and
        set name of bitsizetype to "bit_size_type".
        Fix up type of sizes of all types made before call.
        * tm.texi (ROUND_TYPE_SIZE_UNIT): New macro.
        * tree.c (fix_sizetype): Deleted.
        (build_common_tree_nodes): Call initialize_sizetypes.
        (build_common_tree_nodes_2): Don't call fix_sizetype.
        * tree.h (TYPE_IS_SIZETYPE): New macro.
        (initialize_sizetype): New declaration.
        (enum size_type_kind): New type.
        (struct sizetype_tab): Deleted.
        (sizetype_tab): Now array; adjust sizetype macros.
        (size_diffop, size_int_type_wide): New functions.
        (size_int_wide): Change number of args and type; access macros changed.
        (ssize_int, sbitsize_int): New macros.
        * config/i960/i960.h (ROUND_TYPE_SIZE): Use size_int.
        (ROUND_TYPE_SIZE_UNIT): New macro.

2000-02-27  Zack Weinberg  <zack@wolery.cumb.org>

        * c-lex.c (putback_buffer): Make 'buffer' an unsigned char *.

Sun Feb 27 07:44:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gcov-io.h (__fetch_long, __store_long, __read_long, __write_long):
        Mark as possibly unused.

        * cse.c (cse_insn): Delete dead code involving tablejump.
        Pass CODE_LABEL, not LABEL_REF to gen_jump and reset INSN_CODE.

        * Makefile.in (libcpp.a): Start by deleting it.

2000-02-27  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * cpplib.h (enum file_change_code): Added rename_file.
        * cpplib.c (do_line): If a filename is given, set file_change to
        rename_file.
        (output_line_command): If file_change is rename_file, always
        output a # directive with the file name.

        * cpplib.c (do_pragma): Accept #pragma without consecutive token.

2000-02-26  Mark Mitchell  <mark@codesourcery.com>

        * integrate.c (copy_decl_for_inlining): Preserve TREE_ADDRESSABLE
        when copying a PARM_DECL or RESULT_DECL.

2000-02-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fix-header.c (recognized_function): Also fix prototypes for
        functions taking "void".

2000-02-26  Geoff Keating  <geoffk@cygnus.com>

        * reload1.c (do_output_reload): Check reg_reloaded_valid before
        looking at reg_reloaded_contents.

2000-02-26  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (STMP_FIXINC): New toggle.
        (LIBGCC2_DEPS): Delete all references.
        (stmp-headers): Delete target.  All references either deleted
        or changed to stmp-int-headers.
        (all.cross): Don't depend on stmp-headers or STMP_FIXPROTO.
        (LIBCPP_OBJS): Take out cppalloc.o.
        (cppalloc.o): Delete target.
        (stmp-int-hdrs): Depend on $(STMP_FIXINC).
        (gen-protos, fix-header): Link with libiberty.a.
        * build-make: Don't change FIXINCLUDES.  Override STMP_FIXINC
        to empty.

        * configure.in: Remove refs to strerror.
        * acconfig.h: Take out NEED_DECLARATION_STRERROR.
        * system.h: Take out strerror stanza.

        * cpperror.c (my_strerror): Delete function.
        (cpp_error_from_errno, cpp_notice_from_errno): Use xstrerror.
        * cppmain.c (main): Call xmalloc_set_program_name first thing.
        * cppalloc.c: Delete file.
        * gen-protos.c: Don't provide xrealloc.

        * fixinc/fixincl.c, fixinc/fixlib.c, fixinc/procopen.c: Use
        xstrerror throughout.

2000-02-26  Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def (undefine_null): the bypass pattern needs to
        match for DOS headers, too.
        * fixinc/inclhack.sh,fixincl.x: Regenerate.

2000-02-26  Geoff Keating  <geoffk@cygnus.com>

        * config/elfos.h (ASM_OUTPUT_LABELREF): Don't define.  The default
        is right for most ELF targets.
        * config/ns32k/ns32k.h (ASM_OUTPUT_LABELREF): Don't define.
        Let the default file use %U properly.
        * config/sh/elf.h (ASM_OUTPUT_LABELREF): Don't define.  Use the
        default.

        * config/fp-bit.c (pack_d): Properly handle rounding of denormal
        numbers.

Sat Feb 26 09:39:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * toplev.c (documented_lang_options): Correct spelling error.
        (decode_d_option, decode_f_option, main): Likewise.

        * toplev.c (print_time): Avoid SIGFPE when all_time is zero.

        * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Use .set at
        to tell assembler it is permitted to expand large constants.

2000-02-25  Mumit Khan  <khan@xraylith.wisc.edu>

        * protoize.c: (AUX_INFO_SUFFIX): New macro.
        (aux_info_suffix): Use.
        (SAVE_SUFFIX): New macro.
        (save_suffix): Use.
        (munge_compile_parms): Fix typo in NUL. DJGPP supports /dev/null.
        (gen_aux_info_file): Use aux_info_suffix instead of ".X".
        (edit_file): Handle 8.3 restriction for DOS/DJGPP filenames.

        * invoke.texi (Running Protoize): Update documentation.

2000-02-25 Mark Elbrecht <snowball3@bigfoot.com>

        * i386/djgpp.h (CPP_PREDEFINES): Remove Unix defines.

2000-02-25  John Wehle  (john@feith.com)

        * rtlanal.c (find_last_value): Allow NULL_RTX for valid_to.

2000-02-25  Anthony Green  <green@cygnus.com>

        * toplev.c (rest_of_compilation): Rebuild jump labels if
        combine_instructions has created a new direct jump.
        * combine.c (try_combine): Add new_direct_jump_p argument.  Set it
        when appropriate.
        (combine_instructions): Call try_combine with new argument.
        Return non-null value when new direct jump instruction is created.
        * rtl.h: combine_instructions returns an int.

Fri Feb 25 19:49:08 2000  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_insn): Replace the PATTERN of the insn with an new
        jump when changing a computed jump into a jump to a known
        target.

Fri Feb 25 19:22:44 2000  Graham Stott <grahams@rcp.co.uk>

        * resource.c (mark_referenced_resources): Changed use SET_DEST (...)
        to XEXP (..., 0) on RTL nodes which are not SET or CLOBBER.

        * i386.md (define_expand "clrstrsi"): Fix typo.

Fri Feb 25 18:49:39 2000  "K. Richard Pixley" <rich@microunity.com>

        * rtl.texi: Fix typo.

Fri Feb 25 20:02:35 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (calc_live_regs): Multiply value assigned to *COUNT_PTR by
        UNITS_PER_WORD.  Change caller initial_elimination_offset.
        (rounded_frame_size): Take into account that argument pushed has
        changed.  Fix TARGET_ALIGN_DOUBLE problem.

2000-02-25  Geoff Keating  <geoffk@cygnus.com>

        * haifa-sched.c (schedule_block): Explain the real reason
        we delete REG_SAVE_NOTEs on the first insn of a block.
        Don't delete REG_SAVE_NOTES for NOTE_INSN_SETJMP.

2000-02-24  Mark Mitchell  <mark@codesourcery.com>

        * input.h (push_srcloc): New function.
        (pop_srcloc): Likewise.
        * toplev.c (push_srcloc): Define it.
        (pop_srcloc): Likewise.

2000-02-24  Richard Henderson  <rth@cygnus.com>

        * flow.c (life_analysis): When collecting reg info, clear
        regs_ever_live.

Thu Feb 24 22:06:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        Fix bug exposed by reload.c no longer rounding the frame
        size to BIGGEST_ALIGNMENT:
        * sh.c (rounded_frame_size): New function.
        (sh_expand_prologue, sh_expand_epilogue): Use it.
        (initial_elimination_offset): Likewise.

Thu Feb 24 20:04:11 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        Fix breakage from 6th Feb thread_prologue_and_epilogue_insns change:
        * sh-protos.h (sh_need_epilogue): Declare.
        * sh.c (sh_need_epilogue_known): New static variable.
        (sh_need_epilogue): New function.
        (function_epilogue): Clear need_epilogue_known.
        * sh.md (return): Split into expander / insn pattern.
        Make the expander conditional on ! sh_need_epilogue ().

2000-02-24  Nathan Sidwell  <nathan@codesourcery.com>

        * machmode.h (get_mode_alignment): Declare.
        (GET_MODE_ALIGNMENT): Call it.
        * stor-layout.c (get_mode_alignment): New function. Make
        sure alignment is always power of 2.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

        * i386.h: Remove useless definition of "I386" and misleading
        comment above it.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

        * tree.h (TREE_SET_PERMANENT): New macro.  Document conditions
        under which TREE_PERMANENT will be set.
        * tree.c (make_node, copy_node, make_tree_vec, tree_cons,
        build1): Use TREE_SET_PERMANENT.
        * print-tree.c (print_node): Don't report value of
        TREE_PERMANENT if ggc_p is true.

        * c-common.c (c_get_alias_set): Don't use TREE_PERMANENT to
        decide whether to give a type a new alias set.
        * objc/objc-act.c (build_objc_string_object): Never copy the string.
        * tree.c (make_node): Set DECL_IN_SYSTEM_HEADER irrespective
        of value of 'obstack'.


2000-02-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_process_after_reload): Split all insns.

2000-02-23  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * cpplib.h (enum cpp_token): Added CPP_WCHAR and CPP_WSTRING.
        * cpplib.c (cpp_get_token): Produce them.
        * cppexp.c (cpp_lex): Handle them.

2000-02-23  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (arm_comp_type_attributes): Simply and
        comment tests on type attributes.

Wed Feb 23 16:42:21 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * final.c (shorten_branches): Make value passed to LOOP_ALIGN
        conform to documentation.
        * sh.h (LOOP_ALIGN): If aligning loops, call sh_loop_align
        to check for special cases.
        * sh-protos.h (sh_loop_align): Declare.
        * sh.c (sh_loop_align): Define.

2000-02-22  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.h (GAS_ASM_SPEC): Pass -mgp32/-mgp64 to gas.
        (SIZE_TYPE): Is 32 bits when using -mgp32.
        (PTRDIFF_TYPE): Ditto.

Wed Feb 23 07:26:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * diagnostic.c (init_output_buffer): Handle case of null PREFIX.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

        * config/i386/i386.h: If IN_TARGET_LIBS is defined, make
        BIGGEST_FIELD_ALIGNMENT a constant.

2000-02-21  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (output_line_info): Put the marker for the end of
        the line number info at the actual end.
        (gen_struct_or_union_type_die): Use decl_function_context
        to check for local classes.
        * dwarfout.c (output_type): Likewise.

Tue Feb 22 01:38:57 2000  Jeffrey A Law  (law@cygnus.com)

        * pa.h (FUNCTION_ARG_PASS_BY_REFERENCE): Handle pass-by-reference
        for arguments with a mode, but no type.
        (FUNCTION_ARG_CALLEE_COPIES): Similarly.
        * t-pa (LIB2FUNCS_EXTRA): Add quadlib.asm.
        * pa/long_double.h: New file.
        * configure.in (hpux10, hpux11 configurations): hpux10 and hpux11
        both have 128bit wide long doubles.
        * configure: Rebuilt.

2000-02-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * defaults.h (ASM_OUTPUT_ASCII): Constify a char*.

        * flow.c (get_common_dest, chain_reorder_blocks, make_reorder_chain,
        fixup_reorder_chain, skip_insns_between_block): Add static prototypes.
        (life_analysis): Wrap variable `i' with macro ELIMINABLE_REGS.

        * haifa-sched.c (rank_for_schedule): Don't cast away const-ness.

        * integrate.c (compare_blocks, find_block): Likewise.

        * rtl.c (fatal_with_file_and_line): Add ATTRIBUTE_PRINTF_2.

        * rtl.h (set_file_and_line_for_stmt): Constify a char*.

        * stmt.c (stmt_status, set_file_and_line_for_stmt,
        expand_asm_operands): Likewise.

Mon Feb 21 17:06:27 2000  Jason Eckhardt  <jle@cygnus.com>

        * predict.c (estimate_probability): Added the pointer heuristic to
        the collection of static branch predictors.

2000-02-21  Catherine Moore  <clm@cygnus.com>

        * config/mips/mips.h (ASM_SPEC): Add -mfix700.
        * invoke.texi (-mfix7000): Document.

2000-02-21  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (init_output_buffer): Make it possible to output at
        least 32 characters if we're given a too long prefix.

2000-02-20  Mark Mitchell  <mark@codesourcery.com>

        * varasm.c (initializer_constant_valid_p): Call
        lang_expand_constant to simplify the constant.

2000-02-20  Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def(stdio_va_list):
        typedef needs to be disabled.
        * fixinc/inclhack.sh: regen
        * fixinc/fixincl.x: regen

2000-02-20  Geoff Keating  <geoffk@cygnus.com>

        * print-rtl.c (print_rtx): Don't print addresses when
        flag_dump_unnumbered.

2000-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (sparc_output_scratch_registers): Mark parameter with
        ATTRIBUTE_UNUSED.
        (sparc_va_arg, sparc_flat_output_function_prologue,
        sparc_flat_output_function_epilogue): Cast value to unsigned in
        comparison.
        (sparc_emit_float_lib_cmp): Remove unused variable `cmp'.

        * sparc.md: Add default case in switch.

2000-02-19  Richard Henderson  <rth@cygnus.com>

        * c-typeck.c (add_pending_init): Don't abort for multiple
        fields at the same offset.
        (pending_init_member): Test the correct member.

2000-02-19  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * except.c (start_dynamic_handler) : Use TYPE_MODE (integer_type_node)
        instead of SImode.
        (start_catch_handler) : Same.

2000-02-19  Brad Lucier  (lucier@math.purdue.edu)

        * Makefile.in: Have flow.o depend on $(EXPR_H)

Sat Feb 19 18:43:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-common.c (decl_attributes): Set DECL_SIZE_UNIT.
        * c-decl.c (duplicate_decls, finish_enum): Likewise.
        (finish_decl): Remove -Wlarger-than code from here.
        * flags.h (id_clash_len): Now int.
        (larger_than_size): Now HOST_WIDE_INT.
        * fold-const.c (size_int_wide): No more HIGH parm; NUMBER is signed.
        Clean up checking to see if in table.
        (make_bit_field_ref): Remove extra parm to bitsize_int.
        * ggc-common.c (ggc_mark_tree_children): Mark DECL_SIZE_UNIT.
        * print-tree.c (print_node): Print DECL_SIZE_UNIT and TYPE_SIZE_UNIT.
        * stmt.c (expand_decl): Use DECL_SIZE_UNIT for stack checking size
        and for computing size of decl.
        * stor-layout.c (layout_decl): Set DECL_SIZE_UNIT.
        Move -Wlarger-than code to here.
        (layout_record): Remove extra arg to bitsize_int.
        Set TYPE_BINFO_SIZE_UNIT.
        (layout_union): Remove extra arg to bitsize_int.
        Use proper type for size of QUAL_UNION.
        (layout_type): Remove extra arg to bitsize_int.
        * toplev.c (id_clash_len): Now int.
        (larger_than_size): Now HOST_WIDE_INT.
        (decode_W_option): Clean up id-clash and larger-than- cases.
        * tree.c (get_identifier, maybe_get_identifier): Remove unneeded casts.
        (expr_align, case FUNCTION_DECL): DECL_ALIGN is not defined.
        * tree.h (BINFO_SIZE_UNIT, TYPE_BINFO_SIZE_UNIT, DECL_SIZE_UNIT): New.
        (struct tree_decl): New field size_unit.
        (size_int_wide): No HIGH operand; NUMBER is now signed.
        (size_int_2): Deleted.
        (size_int, bitsize_int): Don't use it and rework args.
        * varasm.c (assemble_variable, output_constructor): Use DECL_SIZE_UNIT.

Fri Feb 18 20:01:58 2000  Jeffrey A Law  (law@cygnus.com)

        * pa/quadlib.asm (_U_QFgt, _U_Qfge): Fix flags for _U_Qfcmp call.

2000-02-18  Geoff Keating  <geoffk@cygnus.com>

        * invoke.texi (Warning Options): Add an explanation of why
        you might want the -Wfloat-equal flag.

Fri Feb 18 20:08:57 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * bitmap.c (bitmap_operation): Avoid using -1 for index since unsigned.
        * cppinit.c (new_pending_define): Add cast to avoid warning.
        * expmed.c (extract_bit_field): Likewise.
        * flow.c (enum reorder_skip_type): New type.
        (skip_insns_between_blcok): New it.
        Rework to avoid warning about possibly undefined variable.
        * function.c (assign_parms): Make thisparm_boundary unsigned.
        * genrecog.c (write_switch): Cast XWINT result to int.
        * lcm.c: Many static fcns and vars now #ifdef OPTIMIZE_MODE_SWITCHING.
        * mips-tfile.c (init_file): Make two versions of FDR intializer:
        one for MIPS and one for Alpha.
        (get_tag, copy_object): Add casts to avoid warnings.
        * optabs.c (init_one_libfunc): Cast NAME to (char *).
        * reload.c (find_reloads): Make TYPE enum reload_type.
        * sbitmap.c (dump_sbitmap): J is unsigned; don't use "1L".
        * unroll.c (unroll_loop): Initialize UNROLL_NUMBER.
        * varasm.c (compare_constant_1): Add cast to avoid warning.
        * config/alpha/alpha.c (alpha_emit_xfloating_libcall): Cast FUNC
        to (char *).
        (alpha_expand_unaligned_load, alpha_expand_unaligned_store):
        Cast switch operand of size to int.
        (alpha_expand_epilogue): Always initialize fp_offset and sa_reg.
        * config/alpha/alpha.h (INITIAL_ELIMINATION_OFFSET): Add abort
        in unhandled case.

2000-02-18  Nick Clifton  <nickc@cygnus.com>

        * config/arm/elf.h (ASM_OUTPUT_ALIGN): Do not generate
        anything for an alignment of zero.

        * config/arm/thumb.h (ASM_OUTPUT_ALIGN): Do not generate
        anything for an alignment of zero.

2000-02-18  Martin von Loewis  <loewis@informatik.hu-berlin.de>

        * gcc.texi (Bug Reporting): Refer to bugs.html.
        (Bug Lists): Likewise.
        * system.h (GCCBUGURL): New preprocessor define.
        * rtl.c (fancy_abort): Use it.
        * gcc.c (main): Likewise.

2000-02-18  Richard Henderson  <rth@cygnus.com>

        * flow.c (INSN_VOLATILE, SET_INSN_VOLATILE, uid_volatile): Remove.
        (life_analysis_1): Subsume into ...
        (life_analysis): ... here.  Force PROP_REG_INFO off after reload.
        Use update_life_info for the relaxation.
        (update_life_info): Update REG_BASIC_BLOCK for registers live on
        entry and regs_live_at_setjmp.
        (set_noop_p): Simplify.
        (notice_stack_pointer_modification_1): Renamed from s/_1//.
        (record_volatile_insns): Split into ...
        (delete_noop_moves): ... here,
        (notice_stack_pointer_modification): ... here,
        (insn_dead_p): ... and here.
        (propagate_block): Don't query INSN_VOLATILE.
        (mark_used_regs): Mind !PROP_REG_INFO.
        * toplev.c (rest_of_compilation): Call mark_constant_function here,
        not in life_analysis.

Fri Feb 18 01:29:22 EST 2000  John Wehle  (john@feith.com)

        * loop.c (canonicalize_condition): New function,
        broken out of get_condition.
        (get_condition): Use it.
        * expr.h (canonicalize_condition): Prototype it.

        * tree.h (tree_int_cst_msb): Declare.
        * tree.c (tree_int_cst_msb): New function.

2000-02-17  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (set_file_and_line_for_stmt): Don't crash if cfun->stmt
        isn't set.

        * invoke.texi (-fmessage-length=n): Document.

2000-02-17  Jason Merrill  <jason@casey.cygnus.com>

        * bitmap.c (bitmap_operation): Don't leak bitmap elements.

2000-02-17  Mark Mitchell  <mark@codesourcery.com>

        * function.c (thread_prologue_and_epilogue_insns): Put a line note
        after the prologue.

2000-02-17  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c: Replace includes of system headers with
        #include "system.h".

2000-02-16  Richard Henderson  <rth@cygnus.com>

        * configure.in (alpha-linux*, alpha-netbsd) [extra_parts]:
        Add crtbeginS.o and crtendS.o.
        * alpha/elf.h (STARTFILE_SPEC): Use crtbeginS.o.
        (ENDFILE_SPEC): Use crtendS.o.
        * alpha/t-crtbe (crtbeginS.o, crtendS.o): New targets.

        * alpha/crtbegin.asm (__do_frame_takedown): Merge into ...
        (__do_global_dtors_aux): ... here.  Call __cxa_finalize if
        shared and present.
        (__dso_handle): New variable.
        * alpha/crtend.asm (__do_global_ctors_aux): Remove runtime
        bias to __CTOR_END__.

2000-02-16  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (s-crtS, crtbeginS, crtendS): Prefix usage with $(T).

Wed Feb 16 21:40:04 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * longlong.h (__clz_tab): Declare as static to match definition.

2000-02-16 Mark Elbrecht <snowball3@bigfoot.com>

        * i386/xm-djgpp.h (LIBSTDCXX): Delete. Moved to config/i386/djgpp.h.
        (XREF_FILE_NAME): Define.

        * i386/djgpp.h (DATA_SECTION_ASM_OP): Define.
        (EH_FRAME_SECTION_ASM_OP): Define.
        (IDENT_ASM_OP): Define.
        (TEXT_SECTION_ASM_OP): Define.
        (CPP_SPEC): Define.
        (CTORS_SECTION_ASM_OP): Define.
        (CTOR_SECTION_FUNCTION): Use it.
        (DTORS_SECTION_ASM_OP): Define.
        (DTOR_SECTION_FUNCTION): Use it.

2000-02-16  Zack Weinberg  <zack@wolery.cumb.org>

        * reg-stack.c (emit_swap_insn): Do not put a new insn before a
        NOTE_BASIC_BLOCK.

        * flow.c (dump_regset, debug_regset, dump_bb, debug_bb,
        debug_bb_n): New functions.
        (dump_flow_info, print_rtl_with_bb): Use dump_regset.
        * basic-block.h: Prototype new functions.

Wed Feb 16 21:07:53 2000  Denis Chertykov  <denisc@overta.ru>

        * configure.in: Add support for avr target.
        * configure: Rebuilt.

        * invoke.texi: Add AVR invocation docs.
        * install.texi: Add information about AVR.
        * md.texi: Add AVR constraint letters description.
        * extend.texi: Add description for AVR specific attributes.

2000-02-16  Jason Merrill  <jason@casey.cygnus.com>

        * fixinc/fixinc.svr4: Wrap byteorder.h with extern "C".

2000-02-16  Nick Clifton  <nickc@cygnus.com>

        * emit-rtl.c (emit_insn): Move RTL check into make_insn_raw.
        (make_insn_raw): Move RTL check here.

2000-02-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * version.c: Include gansidecl.h and version.h.

        * version.h: Wrap entire file in macro __GCC_VERSION_H__.

        * configure.in (gcc_version): When setting, narrow search to
        lines containing `version_string'.

        * Makefile.in (mainversion): Likewise.
        (GCC_H): New variable.
        (gcc.h): Delete target.
        (gcc.o, gccspec.o, cppspec.o): Depend on $(GCC_H), not gcc.h.
        (version.o): Depend on version.h.
        (dbxout.o): Don't depend on gcc.h.

Wed Feb 16 15:04:49 2000  Hans-Peter Nilsson  <hp@bitrange.com>
                          Michael Meissner  <meissner@cygnus.com>

        * md.texi (Simple Constraints): Add item about whitespace.
        * genoutput.c (strip_whitespace): New.
        (scan_operands) [MATCH_OPERAND, MATCH_SCRATCH]: Call
        strip_whitespace for constraints.
        Test pointer using NULL, not 0.

2000-02-16  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * cpplib.c (do_line): Pedwarn for #line > 32767.

        * c-lex.c (readescape): Warn about '\x', but do not reject it.

2000-02-15  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * gcc.c (default_compilers): Add new __GNUC_PATCHLEVEL__ define
        to default cpp spec.
        (do_spec_1): Add support for %v3 spec used by __GNUC_PATCHLEVEL__.
        * cpp.texi: Document __GNUC_PATCHLEVEL__.
        * cpp.1: Likewise.

        * objc/lang-specs.h: Add new __GNUC_PATCHLEVEL__ define to
        default spec.

2000-02-15  Denis Chertykov  <denisc@overta.ru>

        * configure.in: Add support for avr target.

Wed Feb 16 03:21:43 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (OVERRIDE_OPTIONS): Don't set sh_addr_diff_vec_mode.
        (sh_addr_diff_vec_mode): Don't declare.
        * sh.c (sh_addr_diff_vec_mode): Delete.

Wed Feb 16 01:27:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (mulsi3_highpart): Add REG_EQUAL note to last insn.

Wed Feb 16 00:58:06 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (udivsi3_i1, divsi3_i1, umulhisi3_i, mulhisi3_i): Name.
        (smulsi3_highpart_i): Name.
        (udivsi3): Wrap emitted insns in REG_LIBCALL / REG_RETVAL notes.
        (divsi3, mulhisi3, umulhisi3, mulsidi3, umulsidi3): Likewise.
        (smulsi3_highpart, umulsi3_highpart): Likewise.

        (mulsidi3_i, umulsidi3_i): Make rtl describe operation
        correctly independent of endianness.
        (mulsidi3, umulsidi3): Now define_insn.  Hide details that
        confuse the optimizers.
        (mulsidi3+1, umulsidi3+1): New define_split.

Tue Feb 15 23:22:26 2000  Andrew Haley  <aph@cygnus.com>

        * config/sh/sh.md: Guard insn splits against illegal registers.
        * config/sh/sh.h: Correct comment about macros.

Tue Feb 15 22:30:36 2000  J"orn Rennecke <amylaar@cygnus.co.uk>
                          Andrew MacLeod  <amacleod@cygnus.com>

        * Makefile.in (lcm.o): Depend on insn-attr.h.
        * basic-block.h (optimize_mode_switching): Declare.
        * lcm.c (tm_p.h, insn-attr.h): #include.
        (seginfo, bb_info): New structs.
        (antic, transp, comp, delete, insert) : New file-scope static variables.
        (new_seginfo, add_seginfo, make_preds_opaque, reg_dies): New functions.
        (reg_becomes_live, optimize_mode_switching): Likewise.
        * tm.texi: Add description of mode switching macros.
        * toplev.c (rest_of_compilation): Call optimize_mode_switching.

        * sh-protos.h (remove_dead_before_cse): Remove prototype.
        (fldi_ok, fpscr_set_from_mem): New prototypes.
        * sh.h (OPTIMIZATION_OPTION): Remove sh_flag_remove_dead_before_cse set.
        (CONST_DOUBLE_OK_FOR_LETTER_P, SECONDARY_INPUT_RELOAD_CLASS):
        Disable fldi for (TARGET_SH4 && ! TARGET_FMOVD).
        (sh_flag_remove_dead_before_cse): Remove declaration.
        (NUM_MODES_FOR_MODE_SWITCHING, OPTIMIZE_MODE_SWITCHING): New macros.
        (MODE_USES_IN_EXIT_BLOCK, MODE_NEEDED, MODE_AT_ENTRY): Likewise.
        (MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
        * sh.c (broken_move): Disable fldi for (TARGET_SH4 && ! TARGET_FMOVD).
        (barrier_align): Allow for JUMP_INSNS containing a parallel.
        (machine_dependent_reorg): Remove sh_flag_remove_dead_before_cse set.
        (fldi_ok): New function.
        (get_fpscr_rtx): Add fpscr_rtx as GC root.
        (emit_sf_insn): Only generate fpu switches when optimize < 1.
        (emit_df_insn): Likewise.
        (expand_fp_branch, emit_fpscr_use, remove_dead_before_cse): Delete.
        (sh_flag_remove_dead_before_cse): Delete.
        (get_free_reg, fpscr_set_from_mem): New functions.
        * sh.md (movdf, movsf): Remove no_new_pseudos code.
        (return): Remove emit_fpscr_use / remove_dead_before_cse calls.

2000-02-15  Loren Rittle  <ljrittle@acm.org>

        * ginclude/stddef.h: Correct usage of _BSD_RUNE_T_ for FreeBSD.

2000-02-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (TREE_H, collect2.o, gcc.h, mips-tfile.o, cccp.o,
        cpphash.o, cppinit.o, protoize.o, unprotoize.o): Depend on version.h.

        * cccp.c: Include version.h and/or don't declare `version_string'.
        * collect2.c: Likewise.
        * alpha.c: Likewise.
        * arm/aof.h: Likewise.
        * arm/coff.h: Likewise.
        * arm/elf.h: Likewise.
        * arm/pe.h: Likewise.
        * arm/tcoff.h: Likewise.
        * arm/telf.h: Likewise.
        * arm/tpe.h: Likewise.
        * arm/vxarm.h: Likewise.
        * convex/convex.c: Likewise.
        * i386/dgux.c: Likewise.
        * i386/sun386.h: Likewise.
        * m88k/m88k.c: Likewise.
        * mcore/mcore-pe.h: Likewise.
        * mips/mips.h: Likewise.
        * romp/romp.h: Likewise.
        * sh/sh.c: Likewise.
        * cpphash.c: Likewise.
        * cppinit.c: Likewise.
        * dwarf2out.c: Likewise.
        * dwarfout.c: Likewise.
        * gcc.c: Likewise.
        * gcc.h: Likewise.
        * mips-tfile.c: Likewise.
        * protoize.c: Likewise.
        * toplev.c: Likewise.
        * tree.h: Likewise.

        * version.c (version_string): Constify a char*.

        * version.h: New file.

2000-02-14  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Add mcore-elf and mcore-pe targets.
        * configure: Regenerate.

        * NEWS: Add note that MCore port has been contributed.

        * invoke.texi: Document command line switches for MCore port.
        * install.texi: Add MCore to list of supported targets.

2000-02-14  Geoff Keating  <geoffk@cygnus.com>

        * collect2.c (main) [COLLECT_EXPORT_LIST]: If we have frames,
        then we will need to import the frame handling functions.
        (scan_prog_file) [COLLECT_EXPORT_LIST]: We will also need
        to import the frames themselves.

Mon Feb 14 13:31:01 2000  Stan Cox  <scox@cygnus.com>
                          Jason Eckhardt  <jle@cygnus.com>

        * basic_block.h: Added prototype for reorder_basic_blocks.
        * toplev.c: Changes to add -freorder-blocks and graph dump after
        block reordering is done.
        * flow.c (reorder_block_def): New structure for use during block
        reordering.
        (REORDER_BLOCK_*): New macros to access members of above structure.
        (skip_insns_between_block, get_common_dest, chain_reorder_blocks,
        make_reorder_chain, fixup_reorder_chain, reorder_basic_blocks): New
        functions for block reordering.

Mon Feb 14 11:24:44 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * gcc.texi (Passes): Fix typo.
        * md.texi (Standard Names): Ditto.
        * tm.texi (Storage Layout): Ditto.

2000-02-13  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (do_define): Only free the old definition if it
        actually had one.

2000-02-13   Neil Booth  <NeilB@earthling.net>

        * cppfiles.c (read_and_prescan): When emitting deferred
        newlines, test speccase[] again instead of checking each
        possible whitespace character in turn.  When we encounter \r,
        look behind for \n first, then ahead.

2000-02-13  Zack Weinberg  <zack@wolery.cumb.org>

        * cse.c (cse_altered): New internal flag.
        (cse_insn): Set it if we changed an insn.
        (cse_main): Clear cse_altered before each basic block.
        Only garbage collect if cse_altered is true afterward.

Sun Feb 13 14:12:28 2000  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * sparc/sol2.h (LIB_SPEC): Link -ldl if profiling.

Sun Feb 13 13:21:55 2000  Jeffrey A Law  (law@cygnus.com)

        * combine.c (simplify_comparison): Fix typo.

Sun Feb 13 12:57:52 2000  Neil Booth <NeilB@earthling.net>

        * prefix.c (concat, lookup_key): Use xmalloc and xrealloc
        consistently.

2000-02-13  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * flow.c (flow_loop_tree_node_add): Use better algorithm by passing
        previously inserted node instead of root node.  Caller changed.

2000-02-13  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * basic-block.h (FLOW_LOOP_FIRST_BLOCK, FLOW_LOOP_LAST_BLOCK): Delete.

2000-02-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * crtstuff.c (__do_global_ctors_aux, __reg_frame_ctor,
        __dereg_frame_dtor): Add prototype argument.

        * gthr-dce.h (__gthread_active_p, __gthread_once): Likewise.

        * gthr-posix.h (__gthread_active_p, __gthread_once): Likewise.

        * gthr-solaris.h (__gthread_active_p, __gthread_once): Likewise.

        * gthr-vxworks.h (__gthread_once): Likewise.

        * gthr-win32.h (__gthread_active_p, __gthread_once): Likewise.

Sat Feb 12 01:44:26 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.c (ix86_emit_restore_regs_using_mov): Break out from ...
        (ix86_expand_epilogue): ... here. Use mov instead of add to restore
        stack pointer in functions w/o saved registers, output LEAVE more often
        on TARGET_USE_LEAVE machines.

2000-02-07  Dmitri Makarov  <dim@wrs.com> & Bernd Schmidt <bernds@redhat.com>

        * config/arm/arm.c (arm_init_cumulative_args); New function:
        Initlaise the CUMULATIE_ARGS strcuture for a function
        defintion.
        (arm_function_arg): New function: Determine where to place a
        function's argument.  Also handles deciding the function's
        call cookie.
        (current_file_function_operand): New function: Return true if
        the symbol is a function which has already been compiled.
        (arm_is_long_call_p): New function: Return true if the
        indicated function should be called via a long call.
        (arm_valid_type_attribute_p): New function: Return true if the
        attribute is a valid, arm specific, attribute.
        (arm_comp_type_attribute): New function: Return true if the
        two types have compatable, arm specific, attributes.

        * config/arm/arm.h (CUMULATIVE_ARGS): Redefine to be a
        structure.
        (FUNCTION_ARG): Redefine to call arm_function_arg.
        (FUNCTION_ARG_PARTIAL_NREGS): Redefine to use correct
        structure field.
        (INIT_CUMULATIVE_ARGS): Redefine to call
        arm_init_cumulative_args.
        (FUNCTION_ARG_ADVANCE): Redefine to use correct structure
        field.
        (SETUP_INCOMING_VARARGS): Redefine to use correct structure
        field.
        (ARM_MARK_NEARBY_FUNCTION): New macro: Mark already compiled
        functions.
        (ENCODE_SECTION): Add call to ARM_MARK_NEARBY_FUNCTION.
        (VALID_MACHINE_TYPE_ATTRIBUTE): Define.
        (COMP_TYPE_ATTRIBUTES): Define.

        * config/arm/arm.md (call): Call arm_is_long_call_p to decide
        if a long call is needed.
        (call_value): Call arm_is_long_call_p to decide if a long call
        is needed.
        (call_symbol): Call arm_is_long_call_p to decide if a long call
        is needed.

        * config/arm/arm-protos.h: Add prototype for arm_is_long_call_p.

2000-02-11  Denis Chertykov  <denisc@overta.ru>

        * README.AVR: New file with information about the avr ports.
        * config/avr: New directory with avr port files.

2000-02-11  Andreas Jaeger  <aj@suse.de>

        * fixinc/Makefile.in (FIXINC_DEFS): Remove unneeded @fixinc_defs@.

2000-02-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c: Fix formatting, update commentary.
        (dump_definition): Take three separate arguments instead of a
        MACRODEF structure argument.
        * cpphash.h: Update prototype of dump_definition.
        * cppinit.c (cpp_finish): Update call of dump_definition.

        * cpplib.c (do_define): Always create new hash entry with
        T_MACRO type.  Remove redundant check for redefinition of
        poisoned identifier.  Update call of dump_definition.
        (do_undef): Don't call check_macro_name.  Rename sym_length to
        len.
        (do_error, do_warning): Don't use copy_rest_of_line or
        SKIP_WHITE_SPACE.
        (do_warning): Don't use pedwarn for the actual warning,
        only the notice about its not being in the standard.  (Fixes
        bug with #warning in system headers.)
        (do_ident): Stricter argument checking - accept only a single
        string after #ident.  Also, macro-expand the line.
        (do_xifdef): Use cpp_defined.  De-obfuscate.

        (do_pragma): Split out specific pragma handling to separate
        functions.  Use get_directive_token.  Update commentary.  Do
        not pass on #pragma once or #pragma poison to the front end.
        (do_pragma_once, do_pragma_implementation, do_pragma_poison,
        do_pragma_default): New.

Feb 11 12:30:53 2000  Jeffrey A Law  (law@cygnus.com)

        * jump.c (jump_optimize_1): The first operand in a relational
        can be a CONST_INT.
        * optabs.c (emit_conditional_move): Handle relationals which
        have a known true/false result.

2000-02-11  Geoff Keating  <geoffk@cygnus.com>

        * function.c (thread_prologue_and_epilogue_insns): Don't insert
        a RETURN insn into a block which already ends with a jump.

2000-02-11  Geoff Keating  <geoffk@cygnus.com>

        * haifa-sched.c (BUF_LEN): Increase a lot.

2000-02-11  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Add tm_p_file specification for thumb targets.
        * configure: Regenerate.

        * config/arm/thumb-protos.h: New file: Prototypes for exported
        functions defined in thumb.c.

2000-02-11  Robert Lipe  <robertl@sco.com>

        * Makefile.in (bootstrap-lean): Remove additional files.
        (bootstrap2-lean): Likewise.
        (VOL_FILES): List of files for above.

2000-02-11  Nathan Sidwell  <nathan@acm.org>

        * cpphash.c (special_symbol): Remove spurious argument to
        cpp_lookup.

2000-02-11  Joel Sherrill (joel@OARcorp.com>

        * configure.in: (i*86-*-rtems*): Swapped elf and coff
        stanzas.
        * configure: Rebuilt.

2000-02-11  Rodney Brown  <RodneyBrown@pmsc.com>

        * pa-protos.h: Wrap function_arg_padding in TREE_CODE #ifdef.

Fri Feb 11 02:59:05 2000  Jeffrey A Law  (law@cygnus.com)

        * pa.c, pa.h: Remove trigraph sequences within comments.

Fri Feb 11 02:51:56 2000  Pavel Roskin <pavel_roskin@geocities.com>

        * invoke.texi (PPC Options): -mno-new-mnenomics -> -mold-mnemonics.

Fri Feb 11 02:48:30 2000  Brad Lucier  (lucier@math.purdue.edu)

        * sbitmap.h: Make SBITMAP_ELT_BITS unsigned.

2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (fp_zero_operand): Check for CONST_DOUBLE.

2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (ASM_GLOBALIZE_LABEL): Use c4x_global_label.
        (ASM_OUTPUT_EXTERNAL): Use c4x_external_ref.
        (ASM_OUTPUT_EXTERNAL_LIBCALL): Likewise.
        (ASM_FILE_END): Use c4x_file_end.
        * config/c4x/c4x.c (c4x_global_label): New function.
        (c4x_external_ref, c4x_file_end): Likewise.

        * config/c4x/c4x-protos.h (c4x_global_label): Add prototype.
        (c4x_external_ref, c4x_end_file): Likewise.

2000-02-10  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c: Don't include cpphash.h.
        (parse_charconst, cpp_lex): Use cpp_defined.
        (cpp_lex): Use get_directive_token throughout.  Remove
        unnecessary cases from switch.  Move assertion-handling code
        down to OTHER case.
        (cpp_parse_expr): If we see '+' or '-', check the context to
        determine if they are unary or binary operators.  Streamline
        the jumps a bit.  Do not call skip_rest_of_line.

        * cpplib.c: Make skip_rest_of_line and cpp_skip_hspace
        static.  Export get_directive_token.  Update commentary.
        (cpp_defined): New function.
        (do_define): Remove reference to T_PCSTRING.  Call
        free_definition to release memory for old definition, when
        redefining a macro.
        (eval_if_expression): Set only_seen_white to 0 before calling
        cpp_parse_expr.  Call skip_rest_of_line after it returns.
        (cpp_read_check_assertion): Don't preserve a pointer into the
        token buffer across a call to cpp_get_token.

        * Makefile.in (cppexp.o): Don't depend on cpphash.h.
        * cppfiles.c (redundant_include_p): Use cpp_defined.
        * cpphash.c (free_definition): New function.
        (delete_macro): Use it.  Update commentary.
        * cpphash.h: Typedef HASHNODE here.  Prototype cpp_lookup and
        free_definition.
        * cpplib.h: Don't typedef HASHNODE here. Delete T_PCSTRING
        from enum node_type.  Prototype cpp_defined and get_directive_token.
        Don't prototype cpp_lookup, skip_rest_of_line, or cpp_skip_hspace.

        * fix-header.c (check_macro_names): Use cpp_defined.
        (read_scan_file): Set inhibit_warnings and inhibit_errors in
        the options structure.

2000-02-10  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * c-pragma.c (maximum_field_alignment): Remove duplicate declaration.

2000-02-10  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_abstract_origin_attribute): Check TREE_CODE (origin)
        rather than die->die_tag.

Thu Feb 10 16:26:49 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * combine.c (make_extraction, force_to_mode): Avoid warning on
        mixed-signedness conditionals.
        (make_field_assignment, nonzero_bits): Likewise.
        * expmed.c (store_fixed_bit_field): ALIGN arg now unsigned.
        (store_split_bit_field, extract_split_bit_field): Likewise.
        (extract_fixed_bit_field, store_bit_field,
        * expr.c: Change alignment to be unsigned everywhere.
        (move_by_pieces, store_constructor_field, store_constructor):
        Alignment parm is unsigned.
        (emit_block_move, emit_group_load, emit_group_store): Likewise.
        (clear_storage, emit_push_insn, compare_from_rtx): Likewise.
        (do_compare_rtx_and_jump): Likewise.
        (move_by_pieces_ninsns, clear_by_pieces): Likewise.
        Compare align with GET_MODE_ALIGNMENT.
        (expand_expr_unaligned): Pointer to alignment is pointer to unsigned.
        (get_inner_reference): Likewise.
        (copy_blkmode_from_reg, emit_push_insn): Remove unneeded casts.
        (expand_assignment): Local vars for alignment now unsigned.
        (store_constructor, store_field, expand_expr, do_jump): Likewise.
        (do_compare_and_jump): Likewise.
        (store_field): Call new function expr_align.
        * expr.h (emit_block_move, emit_group_load, emit_group_store):
        Alignment arg now unsigned.
        (clear_storage, emit_push_insn, compare_from_rtx): Likewise.
        (do_compare_rtx_and_jump, store_bit_field): Likewise.
        (extract_bit_field): Likewise.
        * fold-const.c (add_double): Add cast to eliminate signedness warning.
        * machmode.h (GET_MODE_ALIGNMENT): Result is unsigned.
        (get_best_mode): Alignment arg is unsigned.
        * rtl.h (move_by_pieces): Likewise.
        * store-layout.c (maximum_field_alignment, set_alignment):
        Now unsigned.
        (layout_decl): Alignment arg is now unsigned.
        Remove unneeded casts.
        (layout_record, layout_union, layout_type): Remove unneeded casts.
        Local alignment variables now unsigned.
        (get_best_mode): Alignment arg now unsigned.
        * tree.c (expr_align): New function.
        * tree.h (expr_align): Likewise.
        (maximum_field_alignment, set_alignment): Now unsigned.
        (get_inner_reference): Alignment argument is now pointer to unsigned.
        * varasm.c (assemble_variable): Add cast to eliminate warning.

Thu Feb 10 12:56:47 2000  Jim Wilson  <wilson@cygnus.com>

        * expmed.c (store_bit_field): If op0 and fieldmode are the same size,
        then store directly into op0.

        * calls.c (expand_call): When emitting a NOTE_INSN_SETJMP, search for
        the CALL_INSN, and emit the note immediately after it.

2000-02-10  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.md (epilogue): Include a (return) in the
        generated insn, and emit it using emit_jump_insn not
        emit_insn.

Thu Feb 10 18:28:59 MET 2000  Jan Hubicka  <jh@suse.cz>

        * function.c (assign_temp): Change zero-sized arrays to size 1.
        * integrate.c (expand_inline_function): Do not update
        stack_alignment_needed
        * i386.c (compute_frame_size): Remove #ifdef PREFERRED_FRAME_BOUNDARY,
        add some sanity checking, remove optimization for function with
        zero frame size.

2000-02-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * flow.c (mark_regs_live_at_end): Delete unused variables.

        * ggc-page.c (ggc_page_print_statistics): bzero -> memset.

        * integrate.c (copy_rtx_and_substitute): Wrap variable `alignment'
        in macro FRAME_GROWS_DOWNWARD.

        * stmt.c (expand_end_bindings): Delete unused variable.

        * unroll.c (iteration_info): Mark parameter `loop' with
        ATTRIBUTE_UNUSED.

2000-02-10  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * fixinc/server.c (load_data): Return NULL if the marker line is
        not found.
        (run_shell): If load_data returns NULL, retry the command once, in
        a new shell.

        * configure: Rebuilt.

2000-02-09  Bruce Korb  <bkorb@gnu.org>

        * gcc/fixincludes:  ** DELETED **
        * gcc/fixcpp:  ** DELETED **
        * gcc/fixinc-nt.sed:  ** DELETED **
        * gcc/just-fixinc:  ** DELETED **
        * gcc/Makefile.in:  Removed out-dated commentary
        * gcc/configure.in: Removed fast-fixincludes disablement.
        * MAINTAINERS(Ian Taylor) moved to "Write after approval" group.

2000-02-09  Clinton Popetz  <cpopetz@cygnus.com>
        * function.c (thread_prologue_and_epilogue_insns): Uncomment
        last change.

2000-02-09  Richard Henderson  <rth@cygnus.com>

        * jump.c (delete_insn): Don't delete user labels at -O0.

2000-02-09  Robert Lipe  <robertl@sco.com>

        * Makefile.in (gen-protos): Don't depend on HOST_LIBDEPS.
        Don't link with HOST_LIBS.

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in: Correct --help text for --with-dwarf2.
        Put tm-dwarf2.h after other tm files, if it's requested.
        * configure: Regenerate.
        * config/tm-dwarf2.h: #undef PREFERRED_DEBUGGING_TYPE before
        defining it.

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h: Provide HASHNODE typedef and forward decl of
        struct hashnode only.  Kill cpp_hashnode typedef.  MACRODEF,
        DEFINITION, struct hashnode, struct macrodef, struct
        definition, scan_decls prototype, default defn of
        INCLUDE_LEN_FUDGE moved elsewhere.

        * cpphash.h: MACRODEF, DEFINITION, struct macrodef, struct
        definition, and struct hashnode moved here. Remove the unused
        'predefined' field from struct definition.  Replace the 'args'
        union with its sole member.  All users updated (cpphash.c).
        Delete HASHSTEP and MAKE_POS macros, and hashf prototype.  Add
        multiple include guard.

        * cpphash.c (hashf): Make static; use better algorithm; drop
        HASHSIZE parameter; return an unsigned int.
        (cpp_lookup): Drop HASH parameter.  PFILE parameter is
        used. Calculate HASHSIZE modulus here.
        (cpp_install): Drop HASH parameter. Calculate HASHSIZE modulus
        here.
        (create_definition): Drop PREDEFINITION parameter.
        * cpplib.c (do_define): Don't calculate a hash value here.
        Don't pass (keyword == NULL) to create_definition.

        * scan.h: Prototype scan_decls here.
        * cppfiles.c: Move INCLUDE_LEN_FUDGE default defn here.
        * cppexp.c, cppfiles.c, cppinit.c, cpplib.c, fix-header.c: All
        callers of cpp_lookup and cpp_install updated.

        * cpphash.c (macarg): Hoist all the flag diddling out of the
        function...
        (macroexpand): ... and out of the loop that calls macarg.
        Skip over the initial paren before macro arguments with
        cpp_get_non_space_token; point may be some distance before
        that paren.  Abort if it's not there.

        * cpplib.c (parse_clear_mark): Delete function.
        (parse_set_mark, parse_goto_mark): Make static.
        (ACTIVE_MARK_P): New macro.
        (skip_block_comment, skip_line_comment): Do not bump the line
        if ACTIVE_MARK_P is true.
        (cpp_pop_buffer): The buffer to be popped may not have an
        active mark.
        (cpp_get_token): When looking for the initial paren before
        macro arguments, only set a mark in a file buffer, Always
        return to that mark before proceeding to call macroexpand or
        return a NAME token.

        * cpplib.h: Remove prototypes of parse_set_mark,
        parse_clear_mark, parse_goto_mark.
        (struct cpp_options): Rename 'put_out_comments' to
        'discard_comments' and invert its sense.
        * cppinit.c, cpphash.c, cpplib.c: All users of
        put_out_comments changed to use discard_comments, with
        opposite sense.

2000-02-09  Clinton Popetz  <cpopetz@cygnus.com>

        * function.c (thread_prologue_and_epilogue_insns): Don't delete
        the edge from a block that both jumps and falls through to the
        fallthru block.

2000-02-09  Scott Bambrough  <scottb@netwinder.org>

        * config/arm/arm.md (movsi): In PIC mode, make sure that a
        constant source address is legitimate.

2000-02-09  Philip Blundell  <pb@futuretv.com>

        * config/arm/arm.c (legitimize_pic_address): Handle LABEL_REF
        correctly.

        * config/arm/arm.h (LEGITIMATE_CONSTANT_P): Allow anything when
        generating PIC.
        (LEGITIMATE_PIC_OPERAND): Disallow references to labels.

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (cpp_define, cpp_undef): Make sure the stacked buffer
        ends with a newline and a NUL.  Don't be so clever manipulating
        strings.

Wed Feb  9 14:18:08 MET 2000  Jan Hubicka  <jh@suse.cz>

        * reload1.c (reload) Align stack frame to cfun->stack_alignment_needed,
        not to BIGGEST_ALIGNMENT.

2000-02-08  Geoff Keating  <geoffk@cygnus.com>

        * dwarf2.h (DW_CFA_GNU_negative_offset_extended): New constant.
        * dwarf2out.c (dwarf_cfi_name): Print name of new constant.
        (reg_save): Use DW_CFA_GNU_negative_offset_extended when needed.
        (output_cfi): Handle output of DW_CFA_GNU_negative_offset_extended.
        * frame.c (execute_cfa_insn): Handle
        DW_CFA_GNU_negative_offset_extended.

2000-02-08  Richard Henderson  <rth@cygnus.com>

        * flow.c (tidy_fallthru_edges): Split out from ...
        (delete_unreachable_blocks): ... here.
        (find_basic_blocks): Use it.

Tue Feb  8 15:51:50 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stmt.c (expand_decl): Do set RTX_UNCHANGING_P for TREE_READONLY.

2000-02-08  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (GEN_PROTOS_OBJS): Remove libcpp.a.
        (gen_protos.o): Don't depend on cpplib.h or cpphash.h.
        (fix-header.o): Don't depend on cpphash.h.

        * scan.c (hashstr): New function.
        * scan.h: Prototype it.
        * fix-header.c: Don't include cpphash.h.  Use hashstr.
        * gen-protos.c: Don't include cpphash.h or cpplib.h.  Use
        hashstr.  Report hash table statistics.  Add private
        definition of xrealloc.

2000-02-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i386.h (TARGET_SWITCHES): Fix typo in option name.

2000-02-08  Clinton Popetz  <cpopetz@cygnus.com>

        * function.c (thread_prologue_and_epilogue_insns): Don't replace
        jumps with returns unless they are jumps to the fallthru block.

Tue Feb  8 07:53:55 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (addqi3_cc): Fix contraints.

Tue Feb  8 01:39:45 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * function.c (emit_return_into_block): Wrap in #ifdef HAVE_return.

2000-02-07  Mark Mitchell  <mark@codesourcery.com>

        * cpplib.c (cpp_get_token): Call CPP_BUMP_LINE after reading a
        carriage return after a macro name.

2000-02-07  Fred Fish  <fnf@be.com>

        * i386/beos-elf.h: (ASM_IDENTIFY_GCC): Define to nothing
        so the gcc2_compiled symbol doesn't confuse BeOS debuggers.

2000-02-07  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (deps_output): Count spacers in deps_column.

2000-02-07  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (initialize_dependency_output): If there is no
        suffix, don't try to look for known suffixes.  Use strrchr.
        (cpp_start_read): Remove duplicate initialization.

Mon Feb  7 18:36:41 MET 2000  Jan Hubicka  <jh@suse.cz>

        * calls.c (compute_argument_block_size): New argument
        preferred_stack_boundary.
        (expand_call): update cfun->preferred_stack_boundary, update call of
        compute_argument_block_size
        (emit_library_call): Increate cfun->preferred_stack_boundary
        to PREFERRED_STACK_BOUNDARY
        (emit_library_call_value): Likewise.
        * explow.c (allocate_dynamic_stack_spave): Likewise.
        * function.c (prepare_function_start): Set
        cfun->preferred_stack_boundary
        * function.h (struct function): Add preferred_stack_boundary field.
        * integrate.c (expand_inline_function): Update
        cfun->preferred_stack_boundary and cfun->stack_alignment_needed.
        (copy_rtx_and_substitute): Align frame to stack_alignment_needed only.
        * i386.c (compute_frame_size): Use cfun->preferred_stack_boundary.

2000-02-06  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (my_strerror, cpp_error, cpp_error_with_line,
        cpp_error_from_errno, cpp_warning, cpp_warning_with_line,
        cpp_pedwarn, cpp_pedwarn_with_line,
        cpp_pedwarn_with_file_and_line): Move to cpperror.c.
        (cpp_print_file_and_line, v_cpp_error, v_cpp_warning,
        v_cpp_error_with_line, v_cpp_warning_with_line,
        cpp_message_from_errno, cpp_perror_with_name): Delete.

        * cpperror.c (cpp_print_containing_files): Take starting
        buffer as argument.
        (cpp_file_line_for_message): Rename to cpp_print_file_and_line.
        (v_cpp_message): Now called directly by all entry points.
        Remove -1 case.
        (cpp_pfatal_with_name, cpp_message): Delete.
        (cpp_notice_from_errno, cpp_ice): New functions.
        (cpp_notice): Is now for reporting error conditions, just
        without an associated file.
        (cpp_error, cpp_error_with_line): Don't do anything if
        opts->inhibit_errors is on.
        (cpp_pedwarn_with_file_and_line): Take column argument also.

        * cpplib.h: Update prototypes of exported functions.
        (struct cpp_options): Add inhibit_errors.

        * cppalloc.c, cppfiles.c: Use fprintf not cpp_notice for
        non-error messages.  Include intl.h.

        * cppinit.c, cppmain.c: Likewise.  Also, use
        cpp_notice_from_errno instead of cpp_perror_with_name or
        cpp_pfatal_with_name, and cpp_notice instead of cpp_message.

        * cppexp.c, cpphash.c, cppinit.c, cpplib.c: Use cpp_ice to
        report internal errors.

        * cpplib.c (do_define): Switch bcopy to memcpy.
        Give cpp_pedwarn_with_file_and_line a dummy column argument.

        * cpplib.c (copy_rest_of_line): Revert previous change: don't
        bail out early if we hit a line comment.

2000-02-06  Richard Henderson  <rth@cygnus.com>

        * flow.c (flow_delete_insn, make_edge, remove_edge): Export.
        * basic-block.h: Declare them.
        * emit-rtl.h (active_insn_p): New.
        (next_active_insn, prev_active_insn): Use it.
        * rtl.h: Declare it.
        * function.c (emit_return_into_block): New.
        (thread_prologue_and_epilogue_insns): Insert return insns instead
        of epilogues when possible.
        * jump.c (jump_optimize_1): Remove code to insert a return insn
        on the fallthru to the exit block.

        * i386.c (ix86_can_use_return_insn_p): Fail for large poped args
        and for non-empty stack frames.
        * i386.md (return): Expand to return-pop as needed.

2000-02-06  Richard Henderson  <rth@cygnus.com>

        * simplify-rtx.c (simplify_relational_operation): Canonicalize
        constant to op1 for testing.

2000-02-06  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*ldi_on_overflow): New pattern.
        (fixuns_truncqfqi2): Use it.

2000-02-06  Richard Henderson  <rth@cygnus.com>

        * i386.c (ix86_agi_dependant): Handle pro_epilogue_adjust_stack
        as a TYPE_LEA insn.

        * i386.md (widening and peepholes): Mask the constant instead of
        using gen_lowpart.

2000-02-05  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (read_and_prescan) [case SPECCASE_QUESTION]: Bump
        input pointer before possibly branching off to the backslash
        code.
        * cpphash.c (macroexpand): Correctly delete \r escapes when
        stringifying parameters.
        * cpplib.c (copy_rest_of_line): Go directly to skip_block_comment
        if we can; bail out early if we hit a line comment.
        (handle_directive): Treat '# 123' in an .S file just like
        '# <punctuation>'.  Discard the shifted '#' if we hit '#\n'.
        Return 1 for '# not_a_directive'.
        (get_directive_token): Pop macro buffers here, so that
        cpp_get_token can't sneakily move past a newline.
        Add sanity checks.
        (cpp_get_token): goto randomchar if handle_directive returns 0.

        * cppalloc.c: Update copyright.
        * cpplib.c: Merge all the static function prototypes into one
        block.
        * cpplib.h: Remove #if 0 block.

        * cpperror.c: Remove #ifdef EMACS block.
        * cppmain.c: Likewise.
        * cpphash.c: Remove #if 0 blocks.
        * cppinit.c: Remove #if 0 blocks, and the -lint option.
        * cpplib.c: Remove #if 0 blocks and code referencing
        pcp_inside_if or for_lint.  Remove duplicate error message.
        Fix error messages for #else after #else or #elif.  Reformat.
        Remove archaic TODO list.
        * cpplib.h: Remove pcp_inside_if and for_lint flags.

2000-02-05  Zack Weinberg  <zack@wolery.cumb.org>

        * i386/osf1elf.h: Add missing backslash to multiline string.

2000-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * longlong.h [sparc] (udiv_qrnnd): Avoid stringifying macro arg.

2000-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (c-common.o): Depend on $(EXPR_H).

        * c-common.c: Include expr.h.

        * c-pragma.c (mark_align_stack): Add prototype.

        * caller-save.c (add_stored_regs): Likewise.

        * combine.c (record_promoted_value): Likewise.

        * i386.c (ix86_sched_reorder_pentium, ix86_sched_reorder_ppro):
        Likewise.

        * cppinit.c (new_pending_define): Likewise.

        * cpplib.c (skip_block_comment, skip_line_comment): Likewise.

        * dwarf2out.c (save_rtx, splice_child_die, reverse_die_lists,
        AT_class, AT_flag, AT_int, AT_unsigned, AT_string, AT_ref, AT_loc,
        AT_addr, AT_lbl, get_AT_ref, free_AT, free_die, local_scope_p,
        class_scope_p): Likewise.

        * dwarf2out.h (dwarf2out_set_demangle_name_func,
        dwarf2out_add_library_unit_info): Likewise.

        * ggc.h (ggc_page_print_statistics): Likewise.

        * haifa-sched.c (propagate_deps): Likewise.

        * reg-stack.c (next_flags_user, record_label_references): Likewise.

        * rtl.h (set_stack_check_libfunc): Likewise.

        * toplev.h (set_fatal_function): Likewise.

        * toplev.c (set_fatal_function): Delete prototype.

        * diagnostic.c: Deconstify functions returning malloc'ed ptrs.

2000-02-05  Geoff Keating  <geoffk@cygnus.com>

        * ginclude/ppc-asm.h (FUNC_START): Use USER_LABEL_PREFIX.
        (FUNC_END): Likewise.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * caller-save.c: Include tm_p.h.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * Makefile.in (libgcc.a): Add $(LIBGCC1) to libgcc.a after $(LIBGCC2).

2000-02-04  Neil Booth  <NeilB@earthling.net>

        * cccp.c (main): Check 'dir' for a NULL pointer before passing
        it to strcmp.

2000-02-04  Zack Weinberg  <zack@wolery.cumb.org>

        * recog.h: Remove NO_MD_PROTOTYPES ifdefs.
        * genflags.c: Use the max_operand_1 logic from genemit.c to
        calculate how many arguments gen_insn prototypes have.  Remove
        NO_MD_PROTOTYPES ifdefs from the generated file.
        * genoutput.c: Don't define NO_MD_PROTOTYPES in the generated
        file.  Cast gen_insn initializers to insn_gen_fn.
        * config/alpha/vms.h: Don't define NO_MD_PROTOTYPES.
        * gcc.texi: Remove documentation of NO_MD_PROTOTYPES.

2000-02-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/Makefile.in (HDR): Add machname.h.
        (clean): Likewise.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (c4x_compare_op0, c4x_compare_op1): Move ...
        (c4x_regclass_map, c4x_caller_save_map, c4x_rpts_cycles): Ditto.
        (c4x_cpu_version): Ditto.
        * config/c4x/c4x-protos.h: ... here.

2000-02-04  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_abstract_origin_attribute): Don't call
        gen_abstract_function on our context if we're a nested function.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (fixuns_truncqfqi2): Rewrite.
        * config/c4x/libgcc.S (ufix_truncqfhi2n): Fix.

2000-02-04  Bruce Korb  <bkorb@gnu.org>

        * fixinc/genfixes(machname.h):
        Move the functionality from gen-machine.h into this file.
        UNdef MN_NAME_PAT if there are no names to change.
        Also, be a little kinder when AutoGen is not present.

        * fixinc/Makefile.in(machname.h):
        Change the generation rule to use genfixes.

        * fixinc/fixfixes.c(machine_name):
        machine_name_fix's functionality now dependent upon whether
        MN_NAME_PAT is defined.

        * fixinc/fixtests.c(machine_name):
        ditto.

        * fixinc/fixlib.c(mn_get_regexps): conditional on definition
        of MN_NAME_PAT.

        * fixinc/fixlib.h(mn_get_regexps):
        ditto

        * fixinc/gen-machine.h: DELETED

2000-02-04  Jan Hubicka  <jh@suse.cz>
            Richard Henderson  <rth@cygnus.com>

        * i386.c (SAVE_REGS_FIRST): Remove.
        (ix86_initial_elimination_offset): Handle only SAVE_REGS_FIRST mode.
        (ix86_compute_frame_size): Likewise.
        (ix86_expand_prologue): Likewise.  Use pro_epilogue_adjust_stack.
        (ix86_emit_restore_regs): Remove.
        (ix86_emit_epilogue_esp_adjustment): Use pro_epilogue_adjust_stack
        when a frame pointer is in use.
        (ix86_expand_epilogue): Handle only SAVE_REGS_FIRST mode.  Use mov
        instead of pop to restore a register when profitable; emit leave
        when profitable.
        (ix86_attr_length_default): Handle pro_epilogue_adjust_stack
        as a TYPE_LEA insn.
        (ix86_adjust_cost): Handle pro_epilogue_adjust_stack as TYPE_ALU.
        * i386.md (prologue_allocate_stack): Remove.
        (epilogue_deallocate_stack): Remove.
        (pro_epilogue_adjust_stack): New.

2000-02-04  Richard Henderson  <rth@cygnus.com>

        * function.c (diddle_return_value): Rework to use a callback function.
        Use current_function_return_rtx if it's been set up.
        (do_clobber_return_reg, clobber_return_register): New.
        (do_use_return_reg, use_return_register): New.
        (expand_function_end): Use them.
        * stmt.c (expand_null_return): Likewise.
        * function.h: Declare them.
        * flow.c (mark_regs_live_at_end): Use diddle_return_value.
        (mark_reg): Change arguments as appropriate for callback.
        * integrate.c (expand_inline_function): Revert 19 Jan change.

Fri Feb  4 20:25:42 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * tm.texi (Values in Registers): Fix typo: "fo" "for".
        (Misc): Say the scheduler, not the Haifa scheduler.

2000-02-04  Clinton Popetz  <cpopetz@cygnus.com>

        * jump.c (mark_jump_label): Add in_mem param, check SYMBOL_REFs
        when in_mem is set.  Update all callers.

2000-02-04  Richard Henderson  <rth@cygnus.com>

        * i386/openbsd.h (INT_ASM_OP): Define.

Fri Feb  4 10:51:30 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * tm.texi: Fix various typos.

Thu Feb  3 17:17:32 2000  Steve Ellcey <sje@cup.hp.com>

        * config/pa/pa-hpux11.h (LIB_SPEC): Correct typo in !p case.
        (MD_STARTFILE_PREFIX_1): New macro.

Thu Feb  3 15:08:13 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (movstrsi, clrstrsi): Support variable sized copies, align
        destination when needed.
        (strmovsi, strsetsi): New expander.
        (strmovsi_1, strsetsi_1): New pattern.
        * i386.h (MASK_NO_ALIGN_STROP, MASK_INLINE_ALL_STROP,
        TARGET_ALIGN_STRINGOPS, TARGET_INLINE_ALL_STRINGOPS): New macros.
        (TARGET_SWITCHES) Add align-stringops and inline-all-stringops.
        * invoke.texi (align-stringops, inline-all-stringops): Document.

Wed Feb  2 23:04:47 2000   Krister Walfridsson <cato@df.lth.se>

        * i386/netbsd.h (INT_ASM_OP): Define.

2000-02-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (cpp_reader): Add new flag, no_directives.
        * cpphash.c (macarg): Set it.
        * cpplib.c (handle_directive): If no_directives is on and we
        find a directive, issue an error and discard the line.

Wed Feb  2 13:07:10 2000  Jim Wilson  <wilson@cygnus.com>

        * config/sparc/sparc.h (PREFERRED_RELOAD_CLASS): Delete 'E' check for
        FP constants.  Add ! TARGET_FPU check for FP constants.

2000-02-02  Clinton Popetz  <cpopetz@cygnus.com>

        * flow.c (find_basic_blocks): Don't kill label_value_list
        here.
        (cleanup_cfg): Kill it here.

Wed Feb  2 08:12:30 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_field): Ensure ALIGN is no stricter than the
        alignment of EXP.

2000-02-02  Richard Henderson  <rth@cygnus.com>

        * jump.c (delete_insn): Partially revert 19 Jan change;
        don't convert unused code labels to notes at -O0.

2000-02-02 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * toplev.c (rest_of_compilation): Run rebuild_jump_labels after
        split_all_insns to recreate REG_LABEL notes for flow2 pass.

2000-02-01  Richard Henderson  <rth@cygnus.com>

        * i386.c (general_no_elim_operand): New.
        (nonmemory_no_elim_operand): New.
        (ix86_expand_move): Copy eliminable operands before a push.
        * i386-protos.h: Declare new functions.
        * i386.h (CAN_ELIMINATE): Simplify.
        (PREDICATE_CODES): Update.
        * i386.md (push insns): Don't allow eliminable register operands.

2000-02-01  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_regs_live_at_end): Follow expand_function_end and
        replace BLKmode with DECL_RTL's mode.

2000-02-01  Zack Weinberg  <zack@wolery.cumb.org>

        * frame.c (find_fde): Convert for loop to do-while so compiler
        sees it's always executed at least once.
        * libgcc2.c (BBINBUFSIZE): Kill.
        (__bb_init_prg): Use fgets.
        (__bb_exit_trace_func): Don't paste strings.
        * unroll.c (unroll_loop): Initialize unroll_type, not
        unroll_number, and tweak logic to match.

        * i386.c (ix86_expand_int_movcc): Add explicit 'return 0' in
        all failure paths.
        (ix86_flags_dependant): Likewise.  Disentangle control flow.
        (ix86_sched_reorder): Break guts out to
        ix86_sched_reorder_pentium and ix86_sched_reorder_ppro.
        (ix86_sched_reorder_ppro): Initialize pair2 and insnp before
        any possible use.

        * i386.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Don't
        use string concatenation.  Don't save and restore esi.

        * fixinc/Makefile.in (fixincl.sh): Don't depend on inclhack.def.
        (machname.h): Remove script to separate file.  Use two-step
        sequence so target is not created if script fails.
        * fixinc/gen-machname.h: New file.  Handle case where no non-reserved
        identifiers are defined.
        * fixinc/fixlib.c (mn_get_regexps): Return a flag: if MN_NAME_PAT is
        an empty string, machine_name doesn't need to do anything at
        all.
        (is_cxx_header): Add more cases to regexp.
        * fixinc/fixlib.h: Update prototype.
        * fixinc/fixtests.c, fixinc/fixfixes.c: Update callers of
        mn_get_regexps.
        * fixinc/fixincl.c: Define NO_BOGOSITY.

        * fixinc/inclhack.def (no_double_slash, else_endif_label): Ifdef out.
        (hp_sysfile): Add missing comma.
        (math_exception): Put the wrapper ifdefs at the beginning and
        the end of the file.
        * fixinc/fixincl.x, fixinc/inclhack.sh: Regenerate.

2000-02-01  Richard Henderson  <rth@cygnus.com>

        * sparc.c (fp_zero_operand): Turn into a normal predicate.
        Use CONST0_RTX.  Update all callers.
        * sparc.h, sparc-protos.h: Update accordingly.
        * sparc.md (fp mov insns): Use fp_zero_operand directly
        where applicable.

Wed Feb  2 02:59:45 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * tm.texi (Values in Registers): Fix typo in HARD_REGNO_NREGS
        example.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (specs.ready): New target.
        (fixinc.sh): Depend on `specs.ready' instead of `specs'.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc.irix: Use unique filenames for writing into /tmp,
        * fixinc.ptx: Likewise.
        * fixinc.sco: Likewise.
        * fixinc.svr4: Likewise.
        * fixinc.winnt: Likewise.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tsystem.h: New file.

        * Makefile.in (libgcc2.a, stmp-multilib, crtbegin.o, crtend.o,
        s-crtS): Depend on tsystem.h.

        * crtstuff.c: Include tsystem.h.
        * frame.c: Likewise.
        * libgcc2.c: Likewise.

Tue Feb  1 19:53:27 CET 2000  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_memset): Expand for variable sized
        lengths too.

2000-02-01  David Billinghurst <David.Billinghurst@riotinto.com.au>

        * config/mips/iris6.h (SUBTARGET_ASM_SPEC) : Default ISA based
        on ABI.

Tue Feb  1 00:57:40 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * dwarfout.c (SHORT_TYPE_SIZE): Correct default.

        * tm.texi (Type Layout): Correct entry for CHAR_TYPE_SIZE.

2000-01-31  Chandra Chavva <cchavva@cygnus.com>

        * combine.c (try_combine) [HAVE_cc0]: Trying to check the missed
        case 3->2 combining (combining with splitting) in which 2 is CC0
        setter/user and 3 is user. The rest of cases 2->1 and 3->2 are
        checked at the begining of the function with the aid of calling
        function 'can_combine_p'.

2000-01-31  Dave Brolley  <brolley@redhat.com>

        * cccp.c (struct argdata): Redeclare 'newlines' field as 'int'.

2000-01-31  Jason Merrill  <jason@casey.cygnus.com>

        * jump.c (redirect_jump): Move a NOTE_INSN_FUNCTION_END to the
        new label.

2000-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gansidecl.h (PROTO, VPROTO, PVPROTO): Delete macros.

        * sbitmap.h (sbitmap_first_set_bit, sbitmap_last_set_bit):
        PROTO -> PARAMS.

2000-01-30  Zack Weinberg  <zack@wolery.cumb.org>

        * i386/386bsd.h, i386/beos-pe.h, i386/bsd386.h, i386/crtdll.h,
        i386/cygwin.h, i386/dgux.h, i386/djgpp-rtems.h, i386/djgpp.h,
        i386/freebsd.h, i386/gnu.h, i386/i386-aout.h, i386/i386-coff.h,
        i386/i386-interix.h, i386/i386elf.h, i386/linux.h, i386/lynx-ng.h,
        i386/lynx.h, i386/mach.h, i386/mingw32.h, i386/moss.h,
        i386/netbsd.h, i386/next.h, i386/openbsd.h, i386/osf1elf.h,
        i386/ptx4-i.h, i386/rtems.h, i386/rtemself.h, i386/sco.h,
        i386/sequent.h, i386/sun.h, i386/sysv4.h, i386/uwin.h, i386/vsta.h,
        i386/vxi386.h, i386/win-nt.h, i386/win32.h:
        Remove -Di386 -Acpu(i386) -Amachine(i386) from CPP_PREDEFINES.

        * i386/osf1elf.h, i386/scodbx.h, i386/seq-sysv3.h, i386/sysv5.h:
        Add %(cpp_cpu) to CPP_SPEC.

        * i386/osf1elf.h, i386/osfelf.h, i386/osfrose.h:
        Add %(cc1_cpu) to CC1_SPEC.

2000-01-28  Ulrich Drepper  <drepper@redhat.com>

        * c-decl.c (c_decode_option): Accept optional numeric argument to
        -Wformat and set warn_format.
        * c-common.c: Don't emit warning about non-constant printf format
        string unless warn_format > 1.

2000-01-30  Richard Henderson  <rth@cygnus.com>

        * alpha.md (return_internal): Allow after reload only.

2000-01-30  Richard Henderson  <rth@cygnus.com>

        * i386.c (ix86_compute_frame_size): Omit padding1 if the
        local frame size is zero.

2000-01-30  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_expand_epilogue): Don't emit the return insn.
        * alpha.h (EPILOGUE_USES): New.  Mark $26 live.
        * alpha.md (return): Turn into an expander.
        (return_internal): Don't use $26.
        (epilogue): Emit the return insn.

2000-01-30  Richard Henderson  <rth@cygnus.com>

        * alpha.md (negtf2, abstf2): Fix word order thinko.
        (extendsftf2): New.
        (trunctfsf2): Avoid intermediate rounding errors.

2000-01-30  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (find_position): Drop 'colp' argument, return the
        new line base.
        (read_and_prescan): Adjust to match.  Don't ever manipulate
        line or line_base except via find_position.

2000-01-29  Zack Weinberg  <zack@wolery.cumb.org>

        * c-parse.in: Apply Ulrich's changes from c-parse.y.
        * c-parse.y, objc/objc-parse.y, c-parse.c, objc/objc-parse.c:
        Regenerate.

2000-01-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cpperror.c (cpp_file_line_for_message): If 'line' is zero,
        just print "<command line>".  If 'filename' is null or an
        empty string, print "<stdin>" for the filename.
        * cpplib.c (do_define): Don't print the 'location of the
        previous definition' message if we're still parsing the
        command line.
        (cpp_pedwarn_with_file_and_line): Always call
        cpp_file_line_for_message.

2000-01-29  Mark Mitchell  <mark@codesourcery.com>

        * flow.c (mark_regs_live_at_end): Fix typo.

2000-01-28  Ulrich Drepper  <drepper@redhat.com>

        * c-common.c: Adjust variable names, comments, help strings to c99.
        * c-lex.c: Likewise.
        * c-parse.y: Likewise.
        * c-tree.h: Likewise.
        * cccp.c: Likewise.
        * cpplib.h: Likewise.
        * c-decl.c: Likewise.  Recognize options with names "*99" as well.
        * cppinit.c: Likewise.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.h (INIT_TARGET_OPTABS): Add all missing local optab entries.
        * c4x.c: Define the optab rtx values.
        (c4x_add_gc_roots): Add the ggc roots for these optab rtx values.
        (c4x_emit_libcall): Use new optab rtx values.
        (c4x_emit_libcall3): Likewise.
        (c4x_emit_libcall_mulhi): Likewise.
        * c4x-protos.h: Add prototypes for optab rtx values and change
        prototypes for above c4x_emit_libcall functions.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.c (c4x_output_ascii): Restrict line length of output when TI
        syntax is used.
        (c4x_function_prologue): Use regnames intead of float_reg_names when
        TI syntax is used.
        (c4x_function_epilogue): Likewise.
        (c4x_print_operand): Likewise.
        * c4x.h (HOST_WIDE_INT_PRINT_HEX): Redefine.
        * c4x.md (set_high): Disable for TARGET_TI.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * c4x.h (PREFERRED_RELOAD_CLASS): Change to restrict the reloading
        of framepointer + constant to ADDR_REGS class.
        * c4x.md (addqi3, addqi3_noclobber_reload): Update.
        * c4x.c (std_or_reg_operand): New function.
        * c4x-protos.h (std_or_reg_operand): Prototype it.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * t-c4x: Change qi,qf,di,df into si,sf,hi,hf to generate same
                object names as libgcc2.c.
        * libgcc.S: Use newly defined names.

Fri Jan  7 19:48:04 CET 2000  Jan Hubicka  <jh@suse.cz>
        * sbitmap.c (sbitmap_first_set_bit, sbitmap_last_set_bit): New
        function.
        * sbitmap.h (sbitmap_first_set_bit, sbitmap_last_set_bit): Declare.
        * basic_block.h (FLOW_LOOP_FIRST_BLOCK): New macro.
        (FLOW_LOOP_LAST_BLOCK): Likewise.

2000-01-21  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * basic-block.h (struct loop): New fields 'first' and 'last'.
        * flow.c (flow_loops_find): Compute loop->first and loop->last.
        (flow_loops_dump): Use loop->first to check for NOTE_INSN_LOOP_BEG
        and loop->last to check for NOTE_INSN_LOOP_END.

Fri Jan 28 10:57:58 2000  Jason Eckhardt  <jle@cygnus.com>

        * predict.c (estimate_probability): Use the new FIRST and LAST fields
        of the loop descriptor rather than HEADER and LATCH. Also added
        missing break statements as well making some coding style modifications
        as suggested by Michael Hayes.

2000-01-28  Richard Henderson  <rth@cygnus.com>

        * flow.c (find_basic_blocks): Remove do_cleanup argument.
        Break out that code ...
        (cleanup_cfg): ... here.
        (commit_one_edge_insertion): Detect a return instruction being
        emitted to an edge.  Emit a barrier following; clear fallthru.
        (commit_edge_insertions): Verify CFG consistency.
        * function.c (expand_function_start): Kill unused variable.
        (expand_function_end): Likewise.
        (thread_prologue_and_epilogue_insns): Use insert_insn_on_edge
        to insert the epilogue.

        * gcse.c (gcse_main): Adjust for find_basic_blocks change.
        (delete_null_pointer_checks): Likewise.
        * output.h: Likewise.
        * reg-stack.c (reg_to_stack): Likewise.
        * toplev.c (rest_of_compilation): Likewise.  Run
        thread_prologue_and_epilogue_insns after rebuilding the CFG.

2000-01-28  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (flow.o): Revert 24 Jan change.
        * flow.c (mark_regs_live_at_end): Likewise.  Force BLKmode
        FUNCTION_VALUE result to DECL_RESULT's mode.

        * haifa-sched.c (schedule_insns): Don't recompute reg info
        after reload.

2000-01-28  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in: Make --enable-cpplib the default.
        * configure: Regenerate.
        * gcc.dg/990119-1.c: No longer expected to fail.

2000-01-28  Bernd Schmidt  <bernds@cygnus.co.uk>

        * jump.c (jump_optimize_1): Delete an optimization that is also done
        by merge_blocks in flow.

2000-01-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * diagnostic.c (build_message_string, output_printf,
        line_wrapper_printf): Add ATTRIBUTE_PRINTF_*.
        (build_location_prefix): Fix non-literal format string.

2000-01-27  Richard Henderson  <rth@cygnus.com>

        * alpha.md (trunctfsf2): New.

2000-01-27  Andrew Hobson  <ahobson@eng.mindspring.net>

        * configure.in (alpha-dec-osf5): Enable MASK_SUPPORT_ARCH.

2000-01-27  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c (cpp_handle_option): Recognize C++ comments under
        -std=gnu89.
        * cpplib.c (skip_block_comment, skip_line_comment): Split code
        out of...
        (skip_comment) ... here.  Permit C++ comments in system
        headers always.  Warn about C++ comments in user code under
        -std=gnu89 -pedantic.
        (copy_comment): Use skip_comment.
        (cpp_skip_hspace, cpp_get_token): skip_comment can no longer
        return EOF.
        (consider_directive_while_skipping, do_else, do_endif): Call
        validate_else unconditionally.
        (validate_else): Check CPP_PEDANTIC here.  Accept non-comment
        text after the conditional in a system header.
        * cpplib.h (struct cpp_buffer): Add flag
        warned_cplusplus_comments.

2000-01-27  Geoffrey Keating  <geoffk@cygnus.com>

        * emit-rtl.c (unshare_all_rtl): Unshare virtual parameters too.
        Use unshare_all_rtl_1.
        (unshare_all_rtl_again): New function.
        (unshare_all_rtl_1): New function split out of unshare_all_rtl.

        * function.c (purge_addressof_1): Use unshare_all_rtl_again
        rather than resetting the 'used' flags ourself.

        * toplev.c (rest_of_compilation): Add current_function_decl
        to the unshare_all_rtl call.
        * tree.h: Prototype unshare_all_rtl.
        * rtl.h: Prototype unshare_all_rtl_again here.

2000-01-27  Geoffrey Keating  <geoffk@cygnus.com>

        * genoutput.c (output_prologue): Include ggc.h in generated
        files.
        * Makefile.in (insn-output.o): Depends on ggc.h.

2000-01-27  Ian Dall  <ian@sibyl.beware.dropbear.id.au>
            Hans-Peter Nilsson  <hp@bitrange.com>

        * ns32k/xm-ns32k.h (memcpy, memset, memcmp): Delete.
        Remove redundant include of xm-ns32k.h.
        * ns32k/xm-genix.h (memcpy, memset, memcmp): Add definitions.
        Remove redundant include of xm-ns32k.h.
        * ns32k/xm-netbsd.h (memcpy, memset, memcmp): No longer undefine.
        Remove redundant include of xm-ns32k.h.
        * ns32k/netbsd.h (TARGET_DEFAULT): Enable multiply-add instructions.

        * ns32k/ns32k.h: Update comment on multiply-add instructions.
        (TARGET_SWITCHES): Add documentation strings.
        (DWARF_FRAME_REGNUM): Override default definition.
        (REG_CLASS_CONTENTS): Add comments.
        (SUBSET_P): Format to reduce line length.
        (SMALL_REGISTER_CLASSES): Make a run time option.
        (GO_IF_NONINDEXED_ADDRESS): Reformat.
        (GO_IF_LEGITIMATE_ADDRESS): Ensure that cfun is non NULL before
        dereferencing it.  Braces to avoid "ambiguous else" were misplaced.
        (regclass_map): fix typo in comment.
        * ns32k/ns32k.c: Add spaces before parentheses for consistant style.
        Prefer gen_rtx_FOO(...) to gen_rtx(FOO,...).
        (trace, reg_or_mem_operand): Delete, unused function.
        (calc_address_cost): Small offsets are cheaper than large ones.
        (expand_block_move): Generate more efficient code when bytes is a
        known at compile time.
        * ns32k/ns32k.md: Alternate constraints for multiply-add instructions.
        (udivmodsi4, udivmodhi4, udivmodqi4): Use nonimmediate_operand
        instead of reg_or_mem_operand.

        * ns32k/ns32k.md: Use nonimmediate_operand or stricter for outputs,
        not general_operand.  Similarly use "=rm" or stricter, not "=g".
        For input operands, use stricter constraints than "g" if not
        general_operand.  Similarly use stricter predicate than
        "general_operand" when stricter constraints than "g" are present,
        except for matching constraints.
        (movstrsi): Use "memory_operand" for operands 0 and 1.
        (truncsiqi2, truncsihi2, trunchiqi2): Remove.
        (udivmoddisi4_internal): Use nonimmediate_operand for operand 0,
        not reg_or_mem_operand.
        (udivmoddisi4): Ditto.
        Use nonimmediate_operand for operand 1, not reg_or_mem_operand.
        Use nonimmediate_operand for operand 3, not register_operand.
        (udivmoddiqi4_internal): Use register_operand for operand 1, not
        reg_or_mem_operand.

2000-01-27  Fred Fish  <fnf@be.com>

        * gthr-posix.h: Fix typo; compatibily -> compatibility.
        * gthr-single.h: Likewise.
        * gthr-solaris.h: Likewise.
        * gthr-vxworks.h: Likewise.
        * gthr-win32.h: Likewise.
        * gthr.h: Likewise.

2000-01-27  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c: Add " (cpplib)" to end of string printed by
        -v / --version.

2000-01-27  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_conditional_move): Use VOIDmode when
        testing for a signed comparison.
        (alpha_emit_floatuns): New.
        * alpha-protos.h: Declare it.
        * alpha.md (floatunsdisf2, floatunsdidf2): New.
        (extendsfdf2): Tidy.

2000-01-27  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/linux64.h (CC1_SPEC): If compiling -m32 with -g but
        no -g option specifying debugging format, default to -gstabs+.

Wed Jan 26 22:19:14 1999  J"orn Rennecke  <amylaar@cygnus.co.uk>

        * calls.c (special_function_p): New argument fork_or_exec.
        (expand_call): When profile_arc_flag is set and the function
        is in the fork_or_exec group, call __bb_fork_func first.
        * libgcc2.c, _bb module (__bb_fork_func): New function.
        (__bb_exit_func): If fcntl F_SETLKW is available, use it to lock
        output file.
        * config/svr4.h (TARGET_HAS_F_SETLKW): Define.
        * tree.h (special_function_p): Update prototype.

2000-01-26  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_split_tfmode_pair): New.
        * alpha-protos.h: Declare it.
        * alpha.md (abstf2, negtf2): New.
        (movtf insn): Add input G constraint.
        (movtf splitter): Use alpha_split_tfmode_pair.

2000-01-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i386/cygwin.h: PROTO -> PARAMS.

2000-01-26  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (sparc_emit_float_lib_cmp): Handle
        TARGET_ARCH32 again. Handle ORDERED, UN* and LTGT comparisons
        using _Qp_cmp/_Q_cmp and testing the return value.
        (print_operand): Call reverse_condition_maybe_unordered if
        we are handling CCFPmode or CCFPEmode.
        Handle ORDERED, UN* and LTGT comparisons.
        * config/sparc/sparc.md (cmptf): Use even on TARGET_ARCH32
        if not TARGET_HARD_QUAD.
        (seq, sne, sgt, slt, sge, sle, beq, bne, bgt, blt, bge, ble,
        bunordered, bordered, bungt, bunlt, buneq, bunge, bunle, bltgt):
        Call sparc_emit_float_lib_cmp even on TARGET_ARCH32.
        Adjust gen_b* calls so that they reflect return comparison of
        sparc_emit_float_lib_cmp.

2000-01-26  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/alpha/alpha.c (alpha_emit_xfloating_cvt): Do not assume
        incoming operands array is large enough for one more operand.
        (alpha_emit_xfloating_arith): Likewise.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/Makefile.in (machname.h): SunOS 4 sed can't handle a
        file with one line and no trailing newline.
        Patch by Kaveh Ghazi <ghazi@caip.rutgers.edu>.
        * fixinc/fixtests.c (machine_name_test): Fix fencepost error
        checking if the match is on the line.
        * fixinc/gnu-regex.c: Provide regerror not __regerror.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * sparc.c (output_cbranch): Fix accidental squashing of the
        fp branch pre-delay nop.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * tree.def (UNNE_EXPR): Remove.
        * c-typeck.c (build_binary_op): Don't handle it.
        * expr.c (expand_expr, do_jump, do_store_flag): Likewise.

        * rtl.def (UNNE): Remove.
        (LTGT): Add.
        * jump.c (reverse_condition): Update accordingly.
        (swap_condition): Likewise.
        (comparison_dominates_p): Handle unordered comparisons.
        (reverse_condition_maybe_unordered): New.
        * rtl.h (reverse_condition_maybe_unordered): Declare.

        * sparc.c (select_cc_mode): Update for UNNE/LTGT.
        (output_cbranch): Use reverse_condition_maybe_unordered and LTGT.
        * sparc.h (REVERSIBLE_CC_MODE): Always true.  Update docs.
        * sparc.md (bltgt): New.

2000-01-25  Nick Clifton  <nickc@redhat.com>

        * emit-rtl.c (emit_insn): Only check machine class insns for
        improper emission of a RETURN.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (flow.o): Depend on $(EXPR_H).
        * flow.c (mark_regs_live_at_end): Use hard_function_value, i.e.
        duplicate the structure of diddle_return_value for keeping regs live.

2000-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (current_loop_info): Delete.
        (consec_sets_invariant_p): Add loop argument, update callers.
        (get_condition_for_loop): Likewise.
        (count_nonfixed_reads, update_giv_derive): Likewise.
        (simplify_giv_expr, general_induction_var): Likewise.
        (consec_sets_giv, recombine_givs): Likewise.
        (move_movables): Delete loop_start and loop_end arguments,
        add loop argument, and update callers.
        (find_mem_givs, check_final_value): Likewise.
        (record_giv, maybe_eliminate_biv, maybe_eliminate_biv_1): Likewise.
        (loop_invariant_p): Rename from invariant_p, add loop argument, and
        update callers.
        (basic_induction_var): Add loop argument, delete loop_level argument,
        and update callers.
        * unroll.c (iteration_info): Delete loop_start and loop_end arguments,
        add loop argument, and update callers.
        (find_splittable_regs, find_splittable_givs): Likewise.
        (reg_dead_after_loop, loop_find_equiv_value): Likewise.
        (final_biv_value, final_giv_value, back_branch_in_range_p): Likewise.
        (biv_total_increment): Delete loop_start and loop_end arguments;
        update callers.
        (precondition_loop_p): Delete loop_start and loop_info arguments;
        update callers.
        * loop.h (get_condition_for_loop): Add loop argument.
        (biv_total_increment): Delete loop_start and loop_end arguments.
        (precondition_loop_p): Delete loop_start and loop_info arguments;
        add loop argument.
        (final_biv_value): Delete loop_start and loop_end arguments;
        add loop argument.
        (final_giv_value, back_branch_in_range_p): Likewise.

2000-01-25  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (LEGITIMATE_CONSTANT_P): Fix for mips16.

2000-01-25  Gavin Romig-Koch  <gavin@cygnus.com>

        * Makefile.in (c-gperf.h) : Change the "See" pointer to
        point to the new "generated_files" doc.

2000-01-25  Clinton Popetz  <cpopetz@cygnus.com>

        * config/fp-bit.c (_unord_f2): Fix typo.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

        * c-common.c, c-decl.c, c-lang.c, c-lex.c, c-parse.in, c-pragma.c,
        c-typeck.c, objc/objc-act.c: Remove all references to obstack
        functions obsoleted by GC, such as push_obstacks_nochange,
        end_temporary_allocation, savealloc, saveable_tree_cons, etc.
        and code which existed only to decide whether or not to call
        them.  Remove now-unused NESTED argument from start_function;
        all callers changed.  Do not change behavior based on ggc_p.
        The use of the ixp_obstack in c-iterate.c and the util_obstack
        in objc/objc-act.c remain; these are not obsoleted by garbage
        collection.
        * c-tree.h: Update prototype for start_function.

        * c-parse.y, c-parse.c, objc/objc-parse.c, objc/objc-parse.y: Rebuild.

2000-01-25  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.md (zero_extendsidi2_internal): Disable for
        mips16.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * sparc-protos.h (select_cc_mode): Declare.
        * sparc.c (select_cc_mode): New.  Handle unordered compares.
        (output_cbranch): Always reverse via code change.  Handle
        unordered compares.  Factor tests and string updates.
        * sparc.h (SELECT_CC_MODE): Split out to select_cc_mode.
        (REVERSIBLE_CC_MODE): Also exclude CCFPmode.
        * sparc.md (bunordered, bordered): New.
        (bungt, bunlt, buneq, bunge, bunle): New.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * dwarf2out.c (dwarf2out_init): Use ggc_add_rtx_varray_root.
        * ggc-common.c (ggc_add_rtx_varray_root): New.
        (ggc_mark_rtx_varray): New.
        (ggc_mark_rtx_varray_ptr): New.  Shift all ggc_mark_foo_ptr
        functions down below ggc_mark_foo.
        * ggc.h (ggc_add_rtx_varray_root, ggc_mark_rtx_varray): Declare.

2000-01-25  Richard Henderson  <rth@cygnus.com>

        * alpha.c (secondary_reload_class): Don't allocate a secondary
        for integral mode memories into FLOAT_REGS.  Rearrange the more
        complicated memory expression inward.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

        * inclhack.def: Fixes to play nicer with FreeBSD, and
        corrections to comments.
        (cxx_unready): Add select expression.
        (irix_sockaddr): Add bypass expression.
        (machine_ansi_h_va_list): New fix.
        (stdio_va_list): No need to edit _BSD_VA_LIST_.
        Split out addition of "#include <stdarg.h>" to...
        (stdio_stdarg_h): ... here.
        (systypes_for_aix): Rename to systypes_stdlib_size_t.  Apply
        to stdlib.h also.  Do not munge _BSD_SIZE_T_.
        (sysz_stdlib_for_sun): Delete duplicate fix for unprotected
        size_t.
        (ultrix_ifdef): Tighten up select expression.

        * fixincl.tpl: Exorcise 'exesel'.  Rewrite calculations of
        re_ct and max_mach to avoid use of shell.  Make printed names
        match names in inclhack.def.  Use static copyright date.
        Don't count c_test and test expressions as requiring regex_t
        slots.  Add some commentary.
        * inclhack.tpl: Do not include the 'This script contains N
        fixup scripts' line if PROGRAM is defined.  Use static
        copyright date.

2000-01-24  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c: include "varray.h", not dyn-string.h.
        (ASM_OUTPUT_DWARF2_ADDR_CONST, ASM_NAME_TO_STRING): Lose.
        (addr_const_to_string, addr_to_string): Lose.
        (ASM_OUTPUT_DWARF_ADDR_CONST): Copy from dwarfout.c.
        (struct dw_val_struct): val_addr is now an rtx.
        (add_AT_addr, AT_addr, free_AT, output_aranges): Adjust.
        (used_rtx_varray): New varray.
        (dwarf2out_init): Initialize it.
        (save_rtx): New fn.
        (mem_loc_descriptor, add_const_value_attribute): Call it instead of
        addr_to_string.
        * arm/telf.h, arm/unknown-elf.h, mn10200.h, mn10300.h,
        sparc/sp64-elf.h: Remove definition of ASM_OUTPUT_DWARF2_ADDR_CONST.
        * Makefile.in (dwarf2out.o): Update dependencies.

2000-01-24  Richard Henderson  <rth@cygnus.com>

        * i386.c (i386_dwarf_output_addr_const): New.
        * i386.h (ASM_OUTPUT_DWARF_ADDR_CONST): New.

        * dwarf2out.c (mem_loc_descriptor): Call ASM_SIMPLIFY_DWARF_ADDR
        if defined.
        * dwarfout.c (output_mem_loc_descriptor): Likewise.
        * i386.c (i386_simplify_dwarf_addr): New.
        * i386.h (ASM_SIMPLIFY_DWARF_ADDR): New.

Mon Jan 24 16:56:10 2000  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (gen_struct_or_union_type_die): Set complete if
        TYPE_STUB_DECL is NULL.

2000-01-24  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_tree_builtin): Move ...
        * c-common.c (expand_tree_builtin): ... here.

2000-01-25  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.h (LOOP_INFO): New accessor macro.
        * basic-block.h (struct loop): Rename field `info' to `aux'.
        * loop.c (scan_loop): Replace loop->info with LOOP_INFO (loop).
        (prescan_loop, strength_reduce, check_dbra_loop, insert_bct): Likewise.
        * unroll.c (loop_iterations, unroll_loop): Likewise.

2000-01-24  Christopher Faylor <cgf@cygnus.com>

        * config/i386/t-cygwin: Accomodate new winsup directory layout
        when searching for include files.

2000-01-24  Richard Henderson  <rth@cygnus.com>

        * rtl.def: Add unordered fp comparisions.
        * tree.def: Likewise.
        * tree.h: Add ISO C 9x unordered fp comparision builtins.

        * builtins.c (expand_tree_builtin): New function.
        * c-typeck.c (build_function_call): Use it.
        (build_binary_op): Support unordered compares.
        * c-common.c (c_common_nodes_and_builtins): Add unordered compares.

        * combine.c (known_cond): Handle reverse_condition returning UNKNOWN.
        (reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed.
        * cse.c (fold_rtx): Check FLOAT_MODE_P before reversing.
        (record_jump_equiv): Handle reverse_condition returning UNKNOWN.
        * jump.c (reverse_condition): Don't abort for UNLE etc, but
        return UNKNOWN.
        (swap_condition): Handle unordered compares.
        (thread_jumps): Check can_reverse before reversing.
        * loop.c (get_condition): Likewise.  Allow UNORERED/ORDERED to be
        reversed for FP.

        * optabs.c (can_compare_p): New argument CODE.  Verify branch or
        setcc is present before acking for cmp_optab.  Update all callers.
        (prepare_float_lib_cmp, init_optabs): Handle UNORDERED.
        * expmed.c (do_cmp_and_jump): Update for can_compare_p.
        * expr.c (expand_expr): Likewise.  Support unordered compares.
        (do_jump, do_store_flag): Likewise.
        * expr.h (enum libfunc_index): Add unordered compares.

        * Makefile.in (FPBIT_FUNCS): Add _unord_sf.
        (DPBIT_FUNCS): Add _unord_df.
        * config/fp-bit.c (_unord_f2): New.
        * fp-test.c (main): Try unordered compare builtins.

        * alpha-protos.h (alpha_fp_comparison_operator): Declare.
        * alpha.c (alpha_comparison_operator): Check mode properly.
        (alpha_swapped_comparison_operator): Likewise.
        (signed_comparison_operator): Likewise.
        (alpha_fp_comparison_operator): New.
        (alpha_emit_conditional_branch): Handle unordered compares.
        * alpha.h (PREDICATE_CODES): Update.
        * alpha.md (fp compares): Use alpha_fp_comparison_operator.
        (bunordered, bordered): New.

2000-01-24  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_xfloating_cvt): Thinko in operand manipulation.
        * alpha.md (movtf): New expander, insn, and splitter.

Mon Jan 24 19:49:47 MET 2000  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (subst_stack_regs_pat): Handle correctly USEs of
        dead registers.

Mon Jan 24 17:37:31 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.h (FIRST_PSEUDO_REGISTER): Set to 21.
        (FIXED_REGISTERS, CALL_USED_REGISTERS,
         REG_ALLOC_ORDER): Add frame pointer
        (FRAME_POINTER_REGNUM): Set to 20
        (HARD_FRAME_POINTER_REGNUM): New macro.
        (ELIMINABLE_REGS): Eliminate ARG_POINTER and FRAME_POINTER
        to HARD_FRAME_POINTER.
        (REGNO_OK_FOR_BASE_P): Accept FRAME_POINTER_REGNUM
        (REG_OK_FOR_INDEX_NONSTRICT_P): Likewise.
        (REG_OK_FOR_BASE_NONSTRICT_P): Likewise.
        (HI_REGISTER_NAMES): Add "frame".
        (CAN_ELIMINATE): Handle FRAME_POINTER_REGNUM elimination.
        (debug_reg): Handle FRAME_POINTER_REGNUM.
        (reg_class): Add arg pointer and frame pointer to NON_Q_REGS,
        GENERAL_REGS and INDEX_REGS.
        * i386.c (SAVED_REGS_FIRST): new macro.
        (AT_BP): Use hard_frame_pointer_rtx instead of frame_pointer_rtx
        (ix86_decompose_address, memory_address_length): Likewise.
        (regclass_map): Add frame pointer.
        (call_insn_operand): Handle frame_pointer_rtx.
        (reg_no_sp_operand): Likewise.
        (ix86_decompose_address): Handle frame_pointer_rtx as stack_pointer_rtx.
        (print_operand, legitimize_pic_address): Fix formating.
        (ix86_compute_frame_size): Make static, update prototype, new
        parameters padding1, padding2, use ix86_nsaved_regs, use
        stack_alignment_needed.
        (ix86_initial_elimination_offset): Handle FRAME_POINTER_REGNUM
        to HARD_FRAME_POINTER_REGNUM conversions.
        (ix86_expand_prologue): Handle SAVED_REGS_FIRST prologues.
        (ix86_expand_epilogue): Handle SAVED_REGS_FIRST epilogues.
        (print_reg): Abort on FRAME_POINTER_REGNUM

Mon Jan 24 16:50:08 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386.h (PREDICATE_CODES): Add aligned_operand.
        * i386.c (aligned_operand): New function.
        (ix86_aligned_p): Kill.
        * i386.md (movhi_1): Emit mov for aligned operands.
        (promoting peep2s): Use aligned_operand.

2000-01-23  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/fixfixes.c (fix_char_macro_uses): Correct regular
        expression to allow underscores in macro names.
        (fix_char_macro_defines): Increment scanning pointer.

2000-01-23  Richard Henderson  <rth@cygnus.com>

        * alpha/osf.h (TARGET_HAS_XFLOATING_LIBS): Define.
        * alpha/osf5.h: New file.
        * configure.in (alpha-*-osf5): Add it to tm_file.

        * emit-rtl.c (operand_subword): Support TFmode on a 64-bit target.

        * alpha-protos.h (alpha_emit_xfloating_arith): Declare.
        (alpha_emit_xfloating_cvt, function_arg): Declare.
        * alpha.c (alpha_emit_conditional_branch): Call
        alpha_emit_xfloating_compare for TFmode compares.
        (alpha_lookup_xfloating_lib_func): New.
        (alpha_compute_xfloating_mode_arg): New.
        (alpha_emit_xfloating_libcall): New.
        (alpha_emit_xfloating_arith): New.
        (alpha_emit_xfloating_compare): New.
        (alpha_emit_xfloating_cvt): New.
        (print_operand): Add default abort case.
        (function_arg): Mind FUNCTION_ARG_PASS_BY_REFERENCE.
        * alpha.h (TARGET_HAS_XFLOATING_LIBS): New.
        (BIGGEST_ALIGNMENT): Increase to 128 bits.
        (RETURN_IN_MEMORY): True for TF/TCmode.
        (ALPHA_ARG_SIZE): TF/TCmode is passed indirect.
        (FUNCTION_ARG): Move to function_arg.
        (FUNCTION_ARG_PASS_BY_REFERENCE): New.
        (ASM_OUTPUT_LONG_DOUBLE): New.
        (ASM_OUTPUT_DOUBLE): Always output bits.
        * alpha.md (addtf3, divtf3, multf3, subtf3, cmptf): New.
        (fix_trunctfdi2, floatditf2, floatunsditf2): New.
        (extenddftf2, trunctfdf2): New.

2000-01-23  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Moved...
        * config/sparc/sol2.h: ... here.

2000-01-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * basic-block.h (struct loops): New field `levels'.
        * flow.c (flow_loops_level_compute): Traverse all outer loops.
        (flow_loop_level_compute): Initialise level to 1.
        (flow_loops_find): Set loops->levels.
        (flow_loops_dump): Print loops->levels.

2000-01-23  Richard Henderson  <rth@cygnus.com>

        * libgcc2.c (dwarf_reg_size_table): Size with DWARF_FRAME_REGISTERS.
        (throw_helper): Iterate over DWARF_FRAME_REGISTERS.

2000-01-23  Richard Henderson  <rth@cygnus.com>

        * i386.c (dbx_register_map, svr4_dbx_register_map): New.
        * i386.h (DBX_REGISTER_NUMBER): Use them.
        * i386/beos-elf.h, i386/freebsd-elf.h, i386/i386elf.h: Likewise.
        * i386/linux.h, i386/osfrose.h, i386/ptx4-i.h: Likewise.
        * i386/rtemself.h, i386/sco5.h, i386/sysv4.h: Likewise.
        * i386/sequent.h: Kill incorrect comment.

2000-01-23  Mark Mitchell  <mark@codesourcery.com>

        * ggc-page.c (struct page_entry): Make `context_depth' an
        `unsigned short'.
        (struct globals): Likewise.

2000-01-23  Clinton Popetz  <cpopetz@cygnus.com>

        * loop.c (check_dbra_loop): When checking a loop for
        reversability, check the source of any stores to ensure
        they don't depend on an initial value.

2000-01-23  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (ASM_OUTPUT_BSS): Redefine.

2000-01-22  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/fixincl.c: Move declarations of 'pz_fname' and
        'pz_scan' into scope of entire function.  Only affects
        compiles with -DDEBUG.

2000-01-22  Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>

        * config/elfos.h (UNIQUE_SECTION): Restore uninitialised data
        section naming to that prior to 2000-01-07 patch.
        * config/mips/elf.h (UNIQUE_SECTION): Ditto.
        * config/mips/elf64.h (UNIQUE_SECTION): Ditto.
        * config/mips/iris6gld.h (UNIQUE_SECTION): Ditto.
        * config/i386/interix.c (UNIQUE_SECTION): Ditto.
        * config/i386/winnt.c (UNIQUE_SECTION): Ditto.

2000-01-22  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/arm.c (soft_df_operand): Reject SUBREGs containing a
        constant.

2000-01-21  Jim Wilson  <wilson@cygnus.com>

        * fixinc/inclhack.tpl: Test for directory before trying to cd into it.
        * fixinc/fixincl.sh, fixinc/inclhack.sh: Regenerate.

2000-01-21  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (change_newlines): Delete function.
        (struct argdata): Delete 'newlines' and 'use_count' fields.
        (macroexpand): Remove code referencing those fields.

2000-01-22  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (loops_info): New variable.
        (loop_optimize): Allocate loops->array and free it on exit.
        Allocate memory for loops_info and assign to each loop,
        replacing alloca.
        (find_and_verify_loops): Do not allocate loops->array.

2000-01-21  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/fixfixes.c (machine_name_fix): Don't free 'scratch'.

2000-01-21  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (movsi_pic_label_ref): Avoid creating new
        pseudos if expanded after first flow.
        (movdi_pic_label_ref): Likewise.

2000-01-20  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Don't do addr_vec optimizations at -O0.

2000-01-20  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (fixinc.sh): Depend on specs.
        * fixinc/Makefile.in: Add rule to create machname.h.
        (fixlib.o): Depend on machname.h.
        * fixinc/fixtests.c (machine_name): New test.
        * fixinc/fixfixes.c (machine_name): New fix.
        * fixinc/fixlib.c (mn_get_regexps): New helper function for
        the machine_name test and fix.
        * fixinc/fixlib.h: Prototype it.
        * fixinc/inclhack.def (machine_name): Use the C test and fix.
        * fixinc/fixincl.x, fixinc/inclhack.sh: Rebuild.

        * gcc.c (do_spec_1) [case P]: Take care not to create
        identifiers with three leading or trailing underscores.

        * fixinc/Makefile.in (FIXINC_DEFS): Add -DIN_GCC.
        (fixincl): Don't specify libraries twice on link line.
        (gnu-regex.o): Remove special rule.
        * fixinc/gnu-regex.c: Define REGEX_MALLOC if C_ALLOCA was
        defined by config.h.  Do not define _REGEX_RE_COMP.
        (regcomp): Allocate and initialize a fastmap.
        * fixinc/gnu-regex.h: Do not define _REGEX_RE_COMP.

2000-01-20  Brad Lucier  <lucier@math.purdue.edu>

        * Makefile.in (predict.o): Depend on $(EXPR_H), not expr.h.

2000-01-19  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_block): Replace FIRST, LAST and BNUM
        arguments with BB.  Update all callers.  Tidy line wrapping.

2000-01-19  Clinton Popetz  <cpopetz@cygnus.com>

        * emit-rtl.c (try_split): Return last_insn if we split the
        last_insn.

Thu Jan 20 01:01:23 MET 2000  Jan Hubicka  <jh@suse.cz>

        * i386-protos.h (ix86_compute_frame_size): Remove prototype.
        (ix86_initial_elimination_offset): Declare.
        * i386.c (ix86_nsaved_regs): Break out from ...
        (ix86_can_use_return_insn_p): ... here.
        (ix86_emit_save_regs): Break out from ...
        (ix86_expand_prologue): ... here.
        (ix86_emit_epilogue_esp_adjustment, ix86_emit_restore_regs): Break
        out from ...
        (ix86_expand_epilogue): ... here.
        (ix86_compute_frame_size): Make static, add prototype.
        (ix86_initial_elimination_offset): Break out from ...
        * i386.h (INITIAL_ELIMINATION_OFFSET): ... here.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * recog.h (OUT_FCN): Delete.

        * vax.md: Call `get_insn_template' instead of OUT_FCN.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppalloc.c: PROTO -> PARAMS.
        * cpperror.c: Likewise.
        * cppfiles.c: Likewise.
        * cpplib.c: Likewise.
        * cpplib.h: Likewise.

        * config/arm/arm-protos.h: PROTO -> PARAMS.
        * config/arm/arm.c: Likewise.
        * config/c4x/c4x.c: Likewise.
        * config/fr30/fr30-protos.h: Likewise.
        * config/nextstep.c: Likewise.
        * config/pa/pa.c: Likewise.
        * config/pj/pj.c: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/v850/v850-protos.h: Likewise.
        * config/v850/v850.c: Likewise.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i370-protos.h: New file.

        * i370.c: Include tm_p.h.  Fix compile time warnings.

        * i370.h: Move prototypes to i370-protos.h.  Fix compile time
        warnings.

        * i370.md: Likewise.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * real.c (enan, einan, eiisnan, eiisneg, make_nan): Wrap in NANS.
        (target_isinf, target_isnan, eisnan): Mark parameter with
        ATTRIBUTE_UNUSED.
        (eiisinf): Wrap in INFINITY.
        (etoe113, etoe64, etoe53, etoe24): Wrap label `nonorm' in INFINITY.
        (ibmtoe): Remove unused variable `rndsav'.

Wed Jan 19 20:23:06 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (PASS_IN_REG_P): Remove extraneous paranthesis.
        (GO_IF_LEGITIMATE_ADDRESS): Added missing tab.

2000-01-19  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/Makefile.in: Correct dependencies of fixincl and fixincl.o.
        * fixinc/fixfixes.c (IO_use, CTRL_use, IO_defn, CTRL_defn): New fixes.
        (fix_char_macro_defines, fix_char_macro_uses): New functions.

        * fixinc/fixlib.c (is_cxx_header): Do the text scan with a regexp.
        Recognize Emacs mode markers also.
        * fixinc/fixtests.c (else_endif_label): Fix bug in recognition of
        C++ comments in C++ headers.  Call is_cxx_header only if
        necessary.

        * fixinc/inclhack.def (avoid_bool): Add select for the problem and
        bypass for ncurses.
        (bsd43_io_macros, io_def_quotes, ioctl_fix_ctrl): Replace with...
        (io_def_quotes, io_use_quotes, ctrl_def_quotes, ctrl_use_quotes):
        ... these, which use the new C fixes.
        (math_exception): Escape literal '+' in bypass expression.

        * fixinc/fixincl.x, fixinc/fixincl.sh, fixinc/inclhack.sh:
        Regenerate.

2000-01-19  Geoff Keating  <geoffk@cygnus.com>

        * rtlanal.c (reg_referenced_p): A CLOBBER of a MEM uses any REGs
        inside the MEM.

2000-01-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (loop_optimize): Allocate loop_info structure for each loop
        prior to calling scan_loop.

Wed Jan 19 19:54:38 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (find_barrier, gen_block_redirect): Fix indentation.
        (split_branches, calc_live_regs): Likewise.

Wed Jan 19 19:12:36 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (fpu_single, fp_mode): New attributes.

2000-01-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (current_loop_info): Renamed from loop_info_data
        and changed to a pointer.
        (loop_optimize): Allocate loop_info structure for each loop
        and initialise to zero.
        (scan_loop): Set current_loop_info.

        * unroll.c (loop_iterations): Don't abort if REG_USERVAR_P set
        on iteration_var.

2000-01-19  Richard Henderson  <rth@cygnus.com>

        * stupid.c: Die die die.
        * Makefile.in (OBJS): Remove stupid.o.
        (stupid.o): Likewise.

        * except.c (emit_eh_context): Don't emit USEs for stupid.
        * explow.c (probe_stack_range): Likewise.
        * flags.h (obey_regdecls): Remove.
        * flow.c (find_basic_blocks): Don't run try_merge_blocks
        when not optimizing.
        (life_analysis): Limit data collection when not optimizing.
        (mark_regs_live_at_end): Always mark the return value registers.
        (mark_used_regs): Remove dummy RETURN case.
        (print_rtl_with_bb): Don't consult obey_regdecls.
        * function.c (use_variable, use_variable_after): Remove.
        (assign_parms): Consult optimize not obey_regdecls.
        (expand_function_start): Don't emit USEs for stupid.
        (expand_function_end): Likewise.
        * global.c (build_insn_chain): Export.
        * integrate.c (expand_inline_function): Kill return-value USE
        handling code.
        * jump.c (jump_optimize_1): Do simple jump optimizations and
        dead code elimination.
        (calculate_can_reach_end): Remove check_deleted argument.
        (delete_insn): Patch out insns even when not optimizing.
        * local-alloc.c (block_alloc): Don't do tying when not optimizing.
        * rtl.h (use_variable, use_variable_after): Remove declarations.
        (build_insn_chain): Declare.
        * stmt.c (expand_value_return): Don't emit USEs for stupid.
        (expand_end_bindings): Likewise.
        (expand_decl): Likewise.  Consult optimize not obey_regdecls.
        * toplev.c (obey_regdecls): Remove.
        (rest_of_compilation): Don't set it.  Kill stupid in favour of
        flow1, local-alloc, and reload.
        (main): Don't set obey_regdecls.

        * config/nextstep.c (handle_pragma): Likewise.

        * alpha/alpha.md (allocate_stack): Don't emit USEs for stupid.

        * arm/arm.h (CONDITIONAL_REGISTER_USAGE): Don't fix reg 0 for stupid.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alpha-protos.h: PROTO -> PARAMS.
        * alpha.c: Likewise.
        * elf.h: Likewise.
        * h8300.c: Likewise.
        * i386-protos.h: Likewise.
        * i386.c: Likewise.
        * m32r-protos.h: Likewise.
        * m32r.c: Likewise.
        * mips.c: Likewise.
        * mips.md: Likewise.
        * gmon-sol2.c: Likewise.
        * sparc.c: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * ns32k-protos.h: New file.

        * ns32k.c: Fix compile time warnings.

        * ns32k.h: Move prototypes to ns32k-protos.h.  Fix compile time
        warnings.

        * ns32k.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * vax-protos.h: New file.

        * vax.c: Fix compile time warnings.

        * vax.h: Move prototypes to vax-protos.h.  Fix compile time
        warnings.

        * vax.md: Likewise.

        * vaxv.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * romp-protos.h: New file.

        * romp.c: Fix compile time warnings.

        * romp.h: Move prototypes to romp-protos.h.  Fix compile time
        warnings.

        * romp.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * we32k-protos.h: New file.

        * we32k.c: Fix compile time warnings.

        * we32k.h: Move prototypes to we32k-protos.h.  Fix compile time
        warnings.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c (emit_call_1): Mark parameter with ATTRIBUTE_UNUSED.

        * except.c (eh_regs): Likewise.

        * final.c (output_operand): Likewise.

        * fold-const.c (target_isinf, target_isnan): Likewise.

Tue Jan 18 16:19:55 MET 2000  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.h (BIGGEST_ALIGNMENT): Set to 128.
        (BIGGEST_FIELD_ALIGNMENT): Set to (TARGET_ALIGN_DOUBLE ? 64 : 32)

        * i386.md (memstr): Do not use rep stosb for counts divisible by 4
        when optimize_size.
        (clrstrsi): Rewrite.
        (strsethi, strsetqi): New expanders.
        (strsethi_1, strsetqi_1, rep_stossi, rep_stosqi): New insn patterns.
        (cmpstrsi): Emit compare insn before cmpstrsi_1
        (cmpstrsi_nz): use flags, set type to str, prefix_length to 1.
        (strlensi_1): Likewise.
        (cmpstrsi_1): Likewise; do not output compare.
        (strlen expander): Do not unroll when optimizing for size.
        (*subsi3_carry): Rename to subsi3_carry
        (addqi3_cc): New pattern.
        * i386.h (processor_costs): Add move_ratio field.
        (MOVE_RATIO): Use move_ratio field, set to 3 for OPTIMIZE_SIZE
        * i386.c (*_cost): Set move_ratio.
        (x86_unroll_strlen): Enable for Athlon, PPro and K6 too.
        (x86_expand_strlensi_1): Rewrite the main loop.

2000-01-17  Richard Henderson  <rth@cygnus.com>

        * combine.c (combine_simplify_rtx): Give FLOAT_STORE_FLAG_VALUE a mode.
        * cse.c (find_comparison_args, fold_rtx): Likewise.
        * integrate.c (subst_constants): Likewise.
        * loop.c (get_condition): Likewise.

        * tm.texi (FLOAT_STORE_FLAG_VALUE): Update docs.

        * alpha.h (FLOAT_STORE_FLAG_VALUE): Use REAL_VALUE_ATOF.

2000-01-18  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * c-parse.in (SAVE_WARN_FLAGS): Create an INTEGER_CST.
        (RESTORE_WARN_FLAGS): Unpack it.
        Change semantic type of extension to ttype.
        * c-common.c (split_specs_attrs): Expect an INTEGER_CST.
        * c-parse.y, c-parse.c, objc/objc-parse.y,
        objc/objc-parse.c: Regenerate.

2000-01-17  Zack Weinberg  <zack@wolery.cumb.org>

        * fixinc/fixlib.c: Add copyright notice.
        (compile_re): New function.
        * fixinc/fixlib.h: Prototype compile_re.

        * fixinc/fixfixes.c, fixinc/fixtests.c, fixinc/fixincl.c:
        Use compile_re to compile regular expressions.

        * fixinc/fixincl.c (egrep_test): Don't bother asking regexec
        where the pattern matched.

        * fixinc/inclhack.def (sun_memcpy): Move to AAB_sun_memcpy,
        use 'replace'.
        (ultrix_ansi_compat): Likewise.
        (interactv_add1): Rename to 'isc_omits_with_stdc', remove shell test,
        add egrep test.
        (interactv_add2, interactv_add3): Delete.
        (x11_sprintf): Don't use filename glob.
        * fixinc/fixincl.x, fixinc/inclhack.sh, fixinc/fixincl.sh:
        Regenerate.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * print-rtl.c: PROTO -> PARAMS.
        * real.c: Likewise.
        * reg-stack.c: Likewise.
        * resource.c: Likewise.
        * sdbout.h: Likewise.
        * simplify-rtx.c: Likewise.
        * stor-layout.c: Likewise.
        * stupid.c: Likewise.
        * xcoffout.c: Likewise.
        * xcoffout.h: Likewise.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c: PROTO -> PARAMS.
        * toplev.h: Likewise.
        * tree.c: Likewise.
        * tree.h: Likewise.
        * unroll.c: Likewise.
        * varasm.c: Likewise.
        * varray.c: Likewise.
        * varray.h: Likewise.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * reload.c: PROTO -> PARAMS.
        * reload.h: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * resource.h: Likewise.
        * rtl.c: Likewise.
        * rtl.h: Likewise.
        * rtlanal.c: Likewise.
        * sbitmap.h: Likewise.
        * sdbout.c: Likewise.
        * stack.h: Likewise.
        * stmt.c: Likewise.
        * system.h: Likewise.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * machmode.h: PROTO -> PARAMS.
        * mbchar.h: Likewise.
        * mips-tdump.c: Likewise.
        * mips-tfile.c: Likewise.
        * optabs.c: Likewise.
        * output.h: Likewise.
        * prefix.c: Likewise.
        * profile.c: Likewise.
        * protoize.c: Likewise.
        * real.h: Likewise.
        * recog.c: Likewise.
        * recog.h: Likewise.
        * regclass.c: Likewise.
        * regmove.c: Likewise.
        * regs.h: Likewise.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * ggc-common.c: PROTO -> PARAMS.
        * ggc-page.c: Likewise.
        * ggc-simple.c: Likewise.
        * ggc.h: Likewise.
        * global.c: Likewise.
        * graph.c: Likewise.
        * gthr-win32.h: Likewise.
        * haifa-sched.c: Likewise.
        * halfpic.h: Likewise.
        * integrate.c: Likewise.
        * integrate.h: Likewise.
        * jump.c: Likewise.
        * lcm.c: Likewise.
        * local-alloc.c: Likewise.
        * loop.c: Likewise.
        * loop.h: Likewise.

2000-01-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattr.c: PROTO -> PARAMS.
        * genattrtab.c: Likewise.
        * gencheck.c: Likewise.
        * gencodes.c: Likewise.
        * genconfig.c: Likewise.
        * genemit.c: Likewise.
        * genextract.c: Likewise.
        * genflags.c: Likewise.
        * gengenrtl.c: Likewise.
        * genopinit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genrecog.c: Likewise.

2000-01-16  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (BINFO_VPTR_FIELD): Augment documentation.

2000-01-16  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * aclocal.m4 (AC_FUNC_MMAP_ZERO): New macro.
        * configure.in (AC_FUNC_MMAP_ZERO): Use instead of AC_FUNC_MMAP.
        * ggc-page.c: Replace HAVE_MMAP with HAVE_MMAP_ZERO.
        * configure, config.in: Rebuilt.

2000-01-16  Zack Weinberg  <zack@wolery.cumb.org>

        * config/i386/i386.md: Add peephole to merge successive stack
        adjusts.

Sat Jan 15 15:41:14 EST 2000  John Wehle  (john@feith.com)

        * gcse.c (insert_insn_end_bb): Use emit_block_insn_before
        instead of emit_insn_before.  Also handle NOTE_INSN_BASIC_BLOCK
        when walking backwards to find all the parameter loads when
        the basic block ends in a call.

2000-01-15  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (this_loop_info): Delete.
        (uid_loop): Add in place of uid_loop_num.  All uses updated.
        (loop_number_exit_count): Delete and replace with entry in loop
        structure.  All uses updated.
        (loop_number_loop_starts, loop_number_loop_ends): Likewise.
        (loop_number_loop_cont, loop_number_cont_dominator): Likewise.
        (loop_outer_loop): Likewise.
        (loop_invalid, loop_number_exit_labels): Likewise.
        (loop_used_count_register): Delete and replace with entry in
        loop_info structure.
        (find_and_verify_loops): Add loops argument.
        (verify_dominator, mark_loop_jump, prescan_loop): Replace loop_start,
        loop_end, etc. arguments with loop structure pointer.  All callers
        changed.
        (loop_reg_used_before_p, scan_loop, strength_reduce): Likewise.
        (check_dbra_loop, next_insn_in_loop, try_copy_prop): Likewise.
        (load_mems_and_recount_loop_regs_set, load_mems): Likewise.
        (insert_bct): Likewise.
        (basic_induction_var): New argument level.
        * loop.h (struct loop_info): Delete fields num, loops_enclosed,
        vtop, and cont.  Add used_count_register.
        (uid_loop): Delete declaration.
        (loop_number_exit_count): Likewise.
        (loop_number_loop_starts, loop_number_loop_ends): Likewise.
        (loop_number_loop_cont, loop_number_cont_dominator): Likewise.
        (loop_outer_loop, loop_used_count_register): Likewise.
        (loop_invalid, loop_number_exit_labels): Likewise.
        (unroll_loop): Replace loop_start and loop_end arguments
        with loop structure pointer.
        (loop_precondition_p, loop_iterations): Likewise.
        Include basic-block.h.
        * unroll.c: (unroll_loop): Replace loop_start and loop_end arguments
        with loop structure pointer.
        (loop_precondition_p, loop_iterations): Likewise.
        * basic-block.h (struct loop): New entries vtop, cont,
        cont_dominator, start, end, top, scan_start, exit_labels,
        exit_count.
        * Makefile.in (LOOP_H): Add basic-block.h to dependencies.

2000-01-15  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * defaults.h (ASM_OUTPUT_ASCII): Use ISDIGIT.

2000-01-14  Nathan Sidwell  <sidwell@codesourcery.com>

        * config.in: Rebuilt for 2000-01-13 change to acconfig.h.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * pdp11-protos.h: New file.

        * pdp11.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * pdp11.h: Move prototypes to pdp11-protos.h.  Fix compile time
        warnings.

        * pdp11.md: Likewise.

        * 2bsd.h: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mn10300-protos.h: New file.

        * mn10300.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * mn10300.h: Move prototypes to mn10300-protos.h.  Fix compile time
        warnings.

        * mn10300.md: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mn10200-protos.h: New file.

        * mn10200.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * mn10200.h: Move prototypes to mn10200-protos.h.  Fix compile time
        warnings.

        * mn10200.md: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * h8300-protos.h: New file.

        * h8300.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * h8300.h: Move prototypes to h8300-protos.h.  Fix compile time
        warnings.

        * h8300.md: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * varasm.c (asm_output_bss): Mark parameters with ATTRIBUTE_UNUSED.
        (asm_emit_uninitialised): Likewise.

2000-01-13  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (ISA_HAS_INT_CONDMOVE): New.
        * config/mips/mips.md: Use ISA_HAS_INT_CONDMOVE.

2000-01-14  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.c (override_options): Don't turn on extra
        alignment for mips16.

2000-01-14  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.c (mips_va_arg): Fix fprv for the 32 bit
        eabi, and make sure queued POSTINCREMENT rtl is emitted at
        the right point.

2000-01-14  Clinton Popetz  <cpopetz@cygnus.com>

        * builtins.c (PAD_VARARGS_DOWN): Define.
        (std_expand_builtin_va_arg): Use the above macro.
        * config/mips/mips.h (PAD_VARARGS_DOWN): Define.
        * tm.texi (Register Arguments): Document the above macro.

2000-01-14  Nick Clifton  <nickc@cygnus.com>

        * emit-rtl.c (emit_insn): If checking is enabled, make sure
        that this function has not been used to emit a jump
        instruction.

        * jump.c (return_jump_1): Cope with being passed a null rtx.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * eh-common.h: PROTO -> PARAMS.
        * emit-rtl.c: Likewise.
        * errors.c: Likewise.
        * errors.h: Likewise.
        * except.c: Likewise.
        * except.h: Likewise.
        * explow.c: Likewise.
        * expmed.c: Likewise.
        * expr.c: Likewise.
        * expr.h: Likewise.
        * final.c: Likewise.
        * fix-header.c: Likewise.
        * flow.c: Likewise.
        * fold-const.c: Likewise.
        * function.c: Likewise.
        * function.h: Likewise.
        * gcc.c: Likewise.
        * gcov-io.h: Likewise.
        * gcov.c: Likewise.
        * gcse.c: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sh-protos.h: New file.

        * sh.c: Include insn-config.h, toplev.h, recog.h and tm_p.h.
        Add static prototypes.  Fix compile time warnings.

        * sh.h: Move prototypes to sh-protos.h.  Fix compile time warnings.
        * sh.md: Likewise.
        * elf.h: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * arc-protos.h: New file.

        * arc.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * arc.h: Move prototypes to arc-protos.h.  Fix compile time
        warnings.

        * arc.md: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dsp16xx-protos.h: New file.

        * dsp16xx.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * dsp16xx.h: Move prototypes to dsp16xx-protos.h.  Fix compile time
        warnings.

        * dsp16xx.md: Likewise.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convex-protos.h: New file.

        * convex.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * convex.h: Move prototypes to convex-protos.h.  Fix compile time
        warnings.

2000-01-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * elxsi-protos.h: New file.

        * elxsi.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * elxsi.h: Move prototypes to elxsi-protos.h.  Fix compile time
        warnings.

        * elxsi.md: Likewise.

2000-01-14  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.h (REGISTER_MOVE_COST): Remove redundant
        case for moving from HI/LO/HI_LO_REG.  This makes the behavior
        match the comment for MIPS16.

Fri Jan 14 00:28:06 2000  Jeffrey A Law  (law@cygnus.com)

        * flow.c (split_edge): Do not call set_block_for_insn if we
        do not have a basic_block_for_insn structure.

        * fr30.h (TRAMPOLINE_TEMPLATE): Use nops to ensure the static chain
        and destination functions are 32bit aligned within the trampoline.
        (TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE): Corresponding changes.
        (TRAMPOLINE_ALIGNMENT): Define.

        * cse.c (cse_insn): When changing (set (pc) (reg)) to
        (set (pc) (label_ref)), verify the change creates a valid insn.

        * fr30.c (call_operand): Tighten and rework to match rules for
        call RTL expressions.
        * fr30.h (PREDICATE_CODES, case call_operand): Only allow MEMs.
        * fr30.md (call patterns): Improve constraints.

Thu Jan 13 23:44:03 2000  Richard Henderson  <rth@cygnus.com>

        * fr30.c (fr30_expand_epilogue): Revert last change.
        Use emit_jump_insn for the return insn.

Thu Jan 13 14:46:03 2000  Jason Eckhardt  <jle@cygnus.com>
                          Stan Cox  <scox@cygnus.com>

        * predict.c: New file. Preliminary infrastructure work for static
        branch prediction and basic block reordering.
        * basic-block.h: Add prototype for estimate_probability.
        * Makefile.in: Add rules for predict.o.

2000-01-13  Jason Merrill  <jason@yorick.cygnus.com>

        * fixincludes (va_list): Use __not_va_list__ for the dummy.
        * fixinc/*: Likewise.

2000-01-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cccp.c: PROTO -> PARAMS.
        * cexp.y: Likewise.
        * collect2.c: Likewise.
        * combine.c: Likewise.
        * convert.h: Likewise.
        * cse.c: Likewise.
        * dbxout.c: Likewise.
        * dbxout.h: Likewise.
        * diagnostic.c: Likewise.
        * doprint.c: Likewise.
        * dwarf2out.c: Likewise.
        * dwarf2out.h: Likewise.
        * dwarfout.c: Likewise.
        * dwarfout.h: Likewise.
        * dyn-string.h: Likewise.

2000-01-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c (emit_call_1): Wrap varaible `struct_value_size_rtx' in
        macro conditionals guarding use.

        * dwarf2out.c: Include "tm_p.h".

        * function.c (locate_and_pad_parm): Mark parameter with
        ATTRIBUTE_UNUSED.
        (expand_function_end): Likewise for variable `context'.

        * reorg.c (make_return_insns): Wrap prototype in macro HAVE_return.

2000-01-13  Nick Clifton  <nickc@cygnus.com>

        * config/fr30/fr30.c (fr30_expand_epilogue): Emit USEs of pop'ed
        register to prevent compile time warnings.

2000-01-13  Zack Weinberg  <zack@wolery.cumb.org>

        * longlong.h [i386] (udiv_qrnnd): Rename 'd' argument to 'dv'
        to avoid -Wtraditional warning.

2000-01-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * 1750a-protos.h: New file.

        * 1750a.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * 1750a.h: Move prototypes to 1750a-protos.h.  Fix compile time
        warnings.

        * 1750a.md: Likewise.

2000-01-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * a29k-protos.h: New file.

        * a29k.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * a29k.h: Move prototypes to a29k-protos.h.  Fix compile time
        warnings.

2000-01-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * clipper-protos.h: New file.

        * clipper.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * clipper.h: Move prototypes to clipper-protos.h.  Fix compile time
        warnings.

Thu Jan 13 16:03:06 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_combine_note_store): Use HARD_REGNO_NREGS.

2000-01-13  Nathan Sidwell  <sidwell@codesourcery.com>

        * configure.in (--enable-new-gxx-abi): New option.
        * acconfig.h (ENABLE_NEW_GXX_ABI): New define.
        * Makefile.in (GXX_ABI_FLAG): New variable.
        * configure: Regenerate.

2000-01-13  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * stor-layout.c (layout_type): Use FORCE_STRUCT_BLK.
        * tm.texi (FORCE_STRUCT_BLK): Document.
        * config/c4x/c4x.h (FORCE_STRUCT_BLK): New macro.

Wed Jan 12 23:12:47 2000  Hans-Peter Nilsson  <hp@axis.com>

        * config/ns32k/ns32k.md: Revert Jan 9 change.

        * genrecog.c (maybe_both_true_2): Do not compare a predicate-test
        to a mode-test, if the predicate is address_operand.

Wed Jan 12 22:34:00 2000  Jeffrey A Law  (law@cygnus.com)

        * combine.c (if_then_else_cond): Be careful about what kinds
        of RTL expressions are passed to operand_subword.

        * flow.c (split_edge): If we have to insert a new jump, make
        sure to associate it with a basic block.

        * flow.c (commit_one_edge_insertion): A block with one successor
        can end in a JUMP_INSN that is not a simplejump.

2000-01-12  Robert Lipe  <robertl@sco.com>

        * i386/sco5.h (INIT_SECTION_ASM_OP_COFF): Rename section to "ctor".
        (BUILD_VA_LIST_TYPE): Define.
        (EH_FRAME_SECTION_ASM_OP): Explictly define to better interact
        with crtstuff.c.

2000-01-12  Jason Merrill  <jason@casey.cygnus.com>

        * cccp.c (do_pragma): Add cast to (char *).

2000-01-12  Richard Henderson  <rth@cygnus.com>
            Fred Fish  <fnf@be.com>
            Jason Merrill  <jason@cygnus.com>

        * configure.in (i?86-*-beos{pe,elf,}*): Recognize.
        * i386/t-beos, i386/x-beos, i386/xm-beos.h: New files.
        * i386/beos-elf.h, i386/beos-pe.h: New files.

        * Makefile.in (CROSS_SYSTEM_HEADER_DIR): New.
        * cross-make (SYSTEM_HEADER_DIR): Define using
        CROSS_SYSTEM_HEADER_DIR.

        * gcc.c (LIBRARY_PATH_ENV): Provide default.
        (process_command): Use it.
        (main): Likewise.  Kill trailing = from env vars.
        (build_search_list): Put it back.
        * collect2.c (main): Use LIBRARY_PATH_ENV.

        * configure.in (GCC_NEED_DECLARATIONS): Add environ.
        * toplev.c: Use NEED_DECLARATION_ENVIRON.

        * tm.texi (Frame Layout): Document SMALL_STACK.
        * c-common.c (c_common_nodes_and_builtins): Check it.

        * system.h: Undef alloca after including glibc's <stdlib.h>,
        if USE_C_ALLOCA is defined.

        * gcc.c (set_input): New fn.
        (main): After all input files are compiled, reset the input file
        info to the first.

        * aclocal.m4 (rindex, index): If already defined, don't attempt
        to redefine.

        * ginclude/varargs.h: (__va_list__): Define ifndef.
        * ginclude/stdarg.h: Likewise.

        * ginclude/stddef.h (__WCHAR_TYPE__) [BEOS]: Use int
        instead of unsigned char.

        * hash.h (true, false, boolean): Undef before enum.

        * expmed.c (choose_multiplier): Cast &mhigh_lo and &mhigh_hi to be
        proper type of "HOST_WIDE_INT *", rather than their natural type of
        "unsigned HOST_WIDE_INT *".

2000-01-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * svr3.h (ASM_FILE_START): Wrap if-clause in squigly brackets.

        * recog.c (memory_address_p): Mark parameter with ATTRIBUTE_UNUSED.

        * regclass.c (choose_hard_reg_mode): Likewise.

        * reload.c (find_valid_class, strict_memory_address_p): Likewise.

        * reorg.c (optimize_skip): Wrap prototype in macro conditionals.

2000-01-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c: PROTO -> PARAMS.
        * c-common.h: Likewise.
        * c-decl.c: Likewise.
        * c-iterate.c: Likewise.
        * c-lang.c: Likewise.
        * c-lex.c: Likewise.
        * c-lex.h: Likewise.
        * c-parse.in: Likewise.
        * c-pragma.c: Likewise.
        * c-pragma.h: Likewise.
        * c-tree.h: Likewise.
        * c-typeck.c: Likewise.
        * objc/objc-act.c: Likewise.
        * objc/objc-act.h: Likewise.

2000-01-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * m88k-protos.h: New file.

        * m88k.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * m88k.h: Move prototypes to m88k-protos.h.  Fix compile time warnings.

        * m88k.md: Likewise.

        * tekXD88.h: Likewise.

2000-01-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * m68k-protos.h: New file.

        * m68k.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * m68k.h: Move prototypes to m68k-protos.h.  Fix compile time warnings.

        * mot3300.h: Likewise.

2000-01-12  Richard Earnshaw <rearnsha@arm.com>

        * haifa-sched.c (split_edges): Pass edgeset_size as second arg to
        extract_bitlst.
        (extract_bitlist): Declare bitlen.

2000-01-12  Zack Weinberg  <zack@wolery.cumb.org

        * cccp.c: Accept and ignore -lang-fortran.

        * c-typeck.c (build_c_cast): Issue -Wcast-qual warnings if the
        qualifiers don't match at any level of pointerness.

2000-01-12  Robert Lipe  <robertl@sco.com>

        * i386/sysv5.h (CPP_SPEC, LIBSPEC): Add -pthreadT.

2000-01-12  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (reload_reg_unavailable): New static variable.
        (reload_reg_free_p): Test it.
        (reload_reg_free_for_value_p): Test it instead of
        reload_reg_used.
        (choose_reload_regs_init): Compute it.

Wed Jan 12 03:24:41 2000  Toshiyasu Morita (toshi.morita@sega.com)

        * reorg.c (fill_slots_from_thread): Check modified_in_p
        before replacing.

Wed Jan 12 03:20:31 2000  John Marshall <john_w_marshall@palm.com>

        * gcc.texi (Funding, GNU/Linux, Copying, Contributors): Format
        these nodes even if INTERNALS is not set.

Wed Jan 12 09:39:22 2000  Nick Burrett  <nick.burrett@btinternet.com>

        * gcse.c (delete_null_pointer_checks_1): Cope when
        get_condition cannot determine the condition.

2000-01-12  Gabriel Dos Reis  <gdr@codesourcery.com>

        * toplev.h (set_message_length): Declare.

        * diagnostic.c (obstack_chunk_alloc): Define macro.
        (obstack_chunk_free): Likewise.
        (struct output_buffer): New data structure.
        (vmessage): Remove.
        (output_maximum_width): New variable.
        (doing_line_wrapping, set_message_length, init_output_buffer,
        get_output_prefix, output_space_left, emit_output_prefix,
        output_newline, output_append, output_puts, dump_output,
        vbuild_message_string, build_message_string, build_location_prefix,
        voutput_notice, output_printf, line_wrapper_printf,
        vline_wrapper_message_with_location):  New functions. Implement
        automatic line wrapping.
        (v_message_with_decl): Make it handle automatic line wrapping.
        (v_error_with_file_and_line): Likewise.
        (v_warning_with_file_and_line): Likewise.
        (announce_function): Likewise.
        (default_print_error_function): Likewise.

2000-01-11 16:24 -0800  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (struct cpp_options): Change lang_asm to char.
        Add lang_fortran.
        * cppinit.c (builtin_array): Take out __STDC_VERSION__, it's
        done in cpp_handle_option now.
        (initialize_builtins): Take out special case code used only by
        __STDC_VERSION__.
        (cpp_handle_option): Turn off trigraphs and trigraph warnings
        if -traditional.  Recognize -lang-fortran and set
        lang_fortran, also turn off cplusplus_comments.
        (print_help): Document -lang-fortran.
        * cpplib.c (handle_directive): Ignore `# 123 "file"' if
        lang_asm. Ignore all directives other than `# 123 "file"' if
        CPP_PREPROCESSED.
        (cpp_get_token): If -traditional, don't recognize directives
        unless the # is in column 1.
        (parse_string): If lang_fortran or lang_asm, silently
        terminate strings ('' or "") at end of line.
        Remove unnecessary braces.

2000-01-11  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>
            Richard Henderson  <rth@cygnus.com>

        * resource.c (mark_referenced_resources): Mark a set strict_low_part
        as used.
        * config/i386/i386.c (ix86_expand_setcc): Re-enable clear + set
        strict_low_part when possible.

2000-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alias.c: PROTO -> PARAMS.
        * basic-block.h: Likewise.
        * bitmap.c: Likewise.
        * bitmap.h: Likewise.
        * builtins.c: Likewise.
        * c-aux-info.c: Likewise.
        * caller-save.c: Likewise.
        * calls.c: Likewise.

2000-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (toplev.o): Depend on regs.h.

        * output.h (tdesc_section): Prototype.

        * regclass.c (copy_cost): Mark parameters with ATTRIBUTE_UNUSED.

        * sdbout.c: Include "tm_p.h".

        * toplev.c: Include "regs.h".

Tue Jan 11 11:37:58 2000  Mike Stump  <mrs@wrs.com>

        * unroll.c (unroll_loop): Add EH support.

2000-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * pa-protos.h: New file.

        * pa.c: Include recog.h and tm_p.h.
        (compute_zdepwi_operands, compute_movstrsi_length,
        remove_useless_addtr_insns, store_reg, load_reg, set_reg_plus_d,
        find_addr_reg, import_milli): Add static prototypes.
        (pa_cpu_string, pa_arch_string): Constify a char*.
        (legitimize_pic_address): Pass argument `mode' to pic_label_operand.
        (read_only_operand): Add argument `mode'.
        (singlemove_string, output_move_double, output_fp_move_double,
        output_block_move, output_and, output_ior, output_ascii,
        remove_useless_addtr_insns, milli_names, output_mul_insn,
        output_div_insn, output_mod_insn, output_arg_descriptor,
        output_cbranch, output_bb, output_bvb, output_dbra, ,
        output_millicode_call, output_call, hppa_encode_label,
        output_parallel_movb, output_parallel_addb): Constify a char*.
        (hppa_va_start): Mark parameter `stdarg_p' with ATTRIBUTE_UNUSED.
        (output_parallel_addb): Remove extra arg to `constrain_operands'

        * pa.h:  Move all prototypes to pa-protos.h.
        (pa_cpu_string, pa_arch_string): Constify a char*.
        (LEGITIMIZE_ADDRESS): Call `symbolic_operand' with mode argument.

        * pa.md: Call `function_label_operand' with mode argument.
        Likewise for `read_only_operand'.
        Fix nesting of parens in call to `symbolic_operand'.

2000-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i860-protos.h: New file.

        * i860.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * i860.h: Move prototypes to i860-protos.h.  Fix compile time warnings.

        * i860.md: Likewise.

Tue Jan 11 18:59:35 MET 2000  Jan Hubicka <jh@suse.cz>

        * i386.md (movstrsi expander): Rewrite.
        (movstrsi_1 insn): Deleted.
        (strmovhi, strmovqi expander): New expanders.
        (movshi_1, movsqi_1, rep_movsi, rep_movqi): New patterns.
        * i386.c (x86_single_stringop): New global variable.
        * i386.h (x86_single_stringop): Declare.
        (TARGET_SINGLE_STRINGOP): New macro.

2000-01-11  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.c (mips_va_arg): For EABI, emit the queued
        integer vararg POSTINCREMENT before the destination of the jump
        for the hard fp case.
        (function_arg_pass_by_reference): Pass a copy of CUM to
        FUNCTION_ARG.

        * config/mips/mips.h (GO_IF_LEGITIMATE_ADDRESS): Move check
        for CONSTANT_ADDRESS_P above while loop for subreg.

2000-01-11  Clinton Popetz  <cpopetz@cygnus.com>

        * flow.c (propagate_block): When a prologue/epilogue insn
        is marked dead, unconditionally clear libcall_is_dead and
        insn_is_dead, and only dump rtl if warnings aren't being
        suppressed.

Tue Jan 11 16:26:47 MET 2000  Jan Hubicka <jh@suse.cz>

        * i386.c (ix86_attr_length_default): Handle TYPE_STR and TYPE_CLD.
        * i386.md (FIRST_PSEUDO_REGISTER): Set to 20.
        (FIXED_REGISTERS): Set dirflag as fixed.
        (CALL_USED_REGISTERS): Set dirflag as used.
        (REG_ALLOC_ORDER): Set dirflag as last one.
        (DIRFLAG_REG): New macro.
        (MD_ASM_CLOBBERS): Asm clobber dirflag for backward compatibility.
        (HI_REGISTER_NAMES): Add dirflag.
        (DEBUF_PRINT_REG): Handle dirflag.
        * i386.md (type attribute): New cld and str types.
        (length_opcode attribute): Set cld and str to 1.
        (memory attribute): Set str to unknown - it is not clear from the
        patterns.
        (pent_np function unit): Prefixed string operations takes 12 cycles
        minimally; cld takes 2 cycles.
        (ppro_uops attribute): Str is "many" and cld is "few".
        (ppro_p0 unit): Handle cld here.
        (k6_alux unit): Handle cld and str types.
        (k6_load unit): It is ocupied by str opcodes.
        (k6_store unit): It is ocupied by str opcodes.
        (athlon_decode): Str is vector decoded.
        (athlon_ieu): Handle str and cld.
        (cld pattern): New.
        (movstrsi, clrstr, cmpstr, strlen expander): Emit cld instruction
        (movstrsi_1, clrstrsi_1, cmpstrsi_1, strlensi_1,
        cmpstrsi_nz_1 insn): Do not output cld instruction

Tue Jan 11 06:14:39 2000  David Starner <dstarner98@aasaa.ofe.org>

        * gcc.texi (G++ and GCC): Add Java and Chill.
        (Bug Critera): Don't list languages.

        * gcc.texi (Incompatibilities): No longer claim most C compilers
        are K&R.

        * gcc.texi (G++ and GCC): Update other front-ends list.

Tue Jan 11 05:49:01 2000  Jeffrey A Law  (law@cygnus.com)

        * i386.c (ix86_expand_setcc): Fix typo.
        (ix86_expand_movcc): Similarly.

        * Band-aid until haifa's bitset implementation is nuked.
        * haifa-sched.c (extract_bitlst): New parameter for size of the
        bitset in bits.  All callers changed.  Avoid looking at undefined
        bits in the bitset.
        (edgeset_bitsize): New variable.
        (schedule_region): Initialize edgeset_bitsize.

2000-01-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (optabs.o): Depend on real.h
        (resource.o): Depend on insn-attr.h

        * builtins.c (result_vector): Wrap prototype in macro conditions
        governing definition and use.

        * c-common.c: Include tm_p.h.

        * c-lex.c: Likewise.

        * elfos.h: Constify a char*.

        * final.c (align_fuzz): Wrap prototype in macro HAVE_ATTR_length.
        (get_attr_length, shorten_branches, profile_after_prologue): Mark
        parameter with ATTRIBUTE_UNUSED.

        * fold-const.c (exact_real_inverse): Wrap variable `i' in
        CHECK_FLOAT_VALUE.

        * haifa-sched.c (schedule_insns): Mark parameter with
        ATTRIBUTE_UNUSED.

        * optabs.c: Include real.h.

        * real.h (ereal_atof): Add prototype arguments.

        * resource.c: Include insn-attr.h.

        * sdbout.c (sdbout_queue_anonymous_type,
        sdbout_dequeue_anonymous_types): Wrap in macro
        SDB_ALLOW_FORWARD_REFERENCES.
        (sdbout_init, sdbout_start_new_source_file): Mark parameter with
        ATTRIBUTE_UNUSED.

        * stmt.c (expand_return): Wrap variable `op0' in macro HAVE_return.

        * stupid.c: Include tm_p.h.

        * tree.c (real_value_from_int_cst): Mark parameter with
        ATTRIBUTE_UNUSED.

2000-01-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i960-protos.h: New file.

        * i960.c: Include tm_p.h.  Add static prototypes.  Fix compile
        time warnings.

        * i960.h: Move prototypes to i960-protos.h.  Fix compile time warnings.

2000-01-10  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * combine.c (expand_field_assignment): Do not discard SUBREGs
        while computing nonzero_bits.

2000-01-09  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Fix compile time warnings about signed vs
        unsigned constants.
        * config/arm/arm.h: Fix compile time warnings about signed vs
        unsigned constants.

2000-01-09  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.c (output_return_instruction): Use `ldr' rather
        than `ldm' with only one register.
        * config/arm/arm.md (push_multi): Use `str' rather than `stm' with
        only one register.

        * config/arm/linux-gas.h (CLEAR_INSN_CACHE): Say that R0 is
        clobbered.

Sun Jan  9 17:50:23 2000  Hans-Peter Nilsson  <hp@axis.com>

        * config/ns32k/ns32k.md (load or push effective address): Operand 1
        must have SImode.

2000-01-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * elfos.h (ASM_OUTPUT_LIMITED_STRING): Add parentheses around
        assignment used as truth value.

        * function.c (assign_temp): Mark parameter `dont_promote' with
        ATTRIBUTE_UNUSED.  Wrap variable `unsignedp' with macro
        PROMOTE_FOR_CALL_ONLY.

        * genrecog.c (write_subroutine): Mark variable `operands' with
        ATTRIBUTE_UNUSED.

        * optabs.c (prepare_cmp_insn): Mark parameter `align' with
        ATTRIBUTE_UNUSED.

        * sdbout.c (sdbout_init): Likewise for parameter `asm_file'.
        (sdbout_begin_block, sdbout_end_block): Likewise for `file'.

        * toplev.c (note_deferral_of_defined_inline_function): Likewise
        for `decl'.

2000-01-09  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x.h: Tidy up comments.
        * config/c4x.c: Likewise.

Sun Jan  9 01:02:55 EST 2000  John Wehle  (john@feith.com)

        * fold-const.c (lshift_double, rshift_double): Handle
        shifting by 2 * HOST_BITS_PER_WIDE_INT correctly.

2000-01-08  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * toplev.c (rest_of_compilation): Initialize cse_not_expected as
        in prepare_function_start().

Sat Jan  8 12:12:46 2000  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.c (expand_epilogue): Interrupt functions no
        longer allocate extra stack for function calls.

2000-01-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*subqf3_set): Fix typo.

2000-01-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (CALLER_SAVE_PROFITABLE): Define as 0.

2000-01-07  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (processor_target_table): Add power3 as alias for 630.
        * aix43.h: Revert Aug 2 change.
        (HAS_INIT_SECTION): Define, not visible yet.
        (LD_INIT_SWITCH): Define, not visible yet.
        * t-aix43 (MULTILIB_OPTIONS): Revert Aug 2 change.

        * glimits.h (__LONG_MAX__): Recognize 64-bit AIX too.

        * collect2.c (main): Expand ld2 size further.
        (export_object_lst): Cast assignment to avoid warning.
        (main, LD_INIT_SWITCH): Add AIX 4.2+ -binitfini support.
        (scan_prog_file, COFF): Do not collect initialization or
        finalization functions generated for entire shared object if
        init/fini support present.

2000-01-07  Nick Clifton  <nickc@cygnus.com>

        * config/elfos.h: Tidy up formatting of marcos.  Make sure
        that .section directives are always prefixed by a tab.

        * config/svr4.h: Add #include "elfos.h" and remove duplicate
        definitions.

2000-01-07  Matt Austern  <austern@sgi.com>

        * fold-const.c (real_hex_to_f): Remove duplicate declaration of
        expon.

Fri Jan  7 01:55:34 2000  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (crtend.o): Pass @inhibit_libc@ to compilation of
        crtstuff.c.
        (crtbegin.o, s-crtS): Likewise.

2000-01-06  Richard Henderson  <rth@cygnus.com>

        * alpha.md (adddi_2+1): Limit offset such that it will be
        loadable with a single ldah+lda pair.
        (adddi_2+2): Explicitly fail split if we can't make it work.

2000-01-06  Mumit Khan  <khan@xraylith.wisc.edu>

        * protoize.c: Conditionally include unistd.h.
        (IS_SAME_PATH_CHAR): New macro.
        (IS_SAME_PATH): New macro.
        (CPLUS_FILE_SUFFIX): New macro.
        (cplus_suffix): New static variable.
        (is_abspath): New static function.
        (in_system_include_dir): Handle DOS style pathnames.
        (file_could_be_converted): Likewise.
        (file_normally_convertible): Likewise.
        (directory_specified_p): Likewise.
        (file_excluded_p): Likewise.
        (abspath): Likewise.
        (shortpath): Likewise.
        (referenced_file_is_newer): Likewise.
        (save_def_or_dec): Likewise.
        (do_processing): Likewise.
        (main): Likewise.
        (edit_file): Likewise. Use rename instead of link.
        (rename_c_file): Likewise. Don't rename syscalls file.
        (munge_compile_params): Define null device for DOS based systems.
        (process_aux_info_file): Use binary mode if appliable.
        (edit_file): Likewise.
        * invoke.texi (Running Protoize): Document C++ suffixes used.

        * cccp.c: Delete PATH_SEPARATOR, DIR_SEPARATOR and
        IS_DIR_SEPARATOR macros.
        * collect2.c: Likewise.
        * cppinit.c: Likewise.
        * dwarf2out.c: Likewise.
        * gcc.c: Likewise.
        * gcov.c: Likewise.
        * prefix.c: Likewise.
        * rtl.c: Likewise.
        * toplev.c: Likewise.
        * system.h: And move to here.

        * prefix.c (update_path): Fix typo in variable name.

2000-01-06  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_set_1): Use loop_depth+1 as reference weight.
        (find_auto_inc, mark_used_regs, try_pre_increment_1): Likewise.
        (count_reg_sets_1, count_reg_references): Likewise.
        (flow_loops_level_compute): Start counting actual loop depth at 1.
        (flow_loops_find): Likewise.
        * local-alloc.c (update_equiv_regs): Likewise.
        * regclass.c (regclass): Re-instate Jan 4 0-based loop_depth change.

2000-01-06  Gabriel Dos Reis  <dosreis@cmla.ens-cachan.fr>

        * defaults.h (DWARF_FRAME_REGISTERS): if not defined, default to
        FIRST_PSEUDO_REGISTER
        * dwarf2out.c: Don't include frame.h
        * dwarfout.c: Likewise
        * Makefile.in (dwarfout.o, dwarf2out.o): Remove dependence on
        frame.h

Thu Jan  6 13:44:59 CET 2000  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (subst_stack_regs_pat): Handle correctly USEs of
        dead registers.

        * i386.c (movsf splitter): Fix typo in my last checkin.

2000-01-05  Nick Clifton  <nickc@cygnus.com>

        * varasm.c (IN_NAMED_SECTION): Allow targets to provide their
        own definition of this macro.
        (asm_emit_uninitialised): Invoke UNIQUE_SECTION if either
        flag_data_sections or UNIQUE_SECTION_P are true.

        * tm.texi (UNIQUE_SECTION): Document that it can be called for
        unitialised data decls.

        * config/i386/winnt.c (i386_pe_unique_section): Cope with
        being called for uninitialised data.

        * config/i386/interix.c (i386_pe_unique_section): Cope with
        being called for uninitialised data.

        * config/mips/elf.h (UNIQUE_SECTION): Cope with being called
        for uninitialised data.

        * config/mips/elf64.h (UNIQUE_SECTION): Cope with being called
        for uninitialised data.

        * config/mips/iri6gld.h (UNIQUE_SECTION): Cope with being called
        for uninitialised data.

        * config/arm/unknown-elf.h (IN_NAMED_SECTION): Define.
        (UNIQUE_SECTION_P): Always generate a unique section if
        flag_data_sections is true.
        (UNIQUE_SECTION): Also generate unique sections for
        uninitialised data.
        (ASM_OUTPUT_ALIGNED_BSS): Redefine to use named_section().
        (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Redefine to use
        named_section().

2000-01-06  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/t-c4x (TARGET_LIBGCC2_CFLAGS): Don't redefine SF, DF,
        SI, or DI.

2000-01-06  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (udivqi3, divqi3): Delete.
        (umodqi3, modqi3, udivhi3, divhi3, umodhi3, modhi3, ffsqi2): Likewise.
        (*smulqi3_highpart_noclobber, *umulqi3_highpart_noclobber): New.
        (*lshrqi3_const_noclobber, *lshrqi3_nonconst_noclobber): Likewise.
        (*ashrqi3_const_noclobber, *ashrqi3_nonconst_noclobber): Likewise.

        * c4x.h (INIT_TARGET_OPTABS): Define to init libcalls.

2000-01-05 11:25 -0800  Zack Weinberg  <zack@rabi.columbia.edu>

        * c-decl.c (finish_enum): Simplify code to determine minimum and
        maximum values of the enum, and calculate the type.  Remove check
        for FUNCTION_DECLs in the values list, which cannot happen.  Replace
        the DECL_INITIAL of each enumeration constant with a copy converted
        to the enumeration type.  When updating variant types, don't bother
        updating the type itself.

        * c-typeck.c (build_binary_op): Simplify conditional expressions
        when weeding out spurious signed-unsigned warnings.  Add new
        spurious warning category: if the unsigned quantity is an enum
        and its maximum value fits in signed_type(result_type).  Update
        commentary.
        (build_conditional_expr): Warn here if one alternative is signed
        and the other is unsigned.

2000-01-05  Nick Clifton  <nickc@cygnus.com>

        * config/fr30/fr30.h: Remove extraneous comments.

2000-01-05  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (choose_reload_regs): When disabling a reload, also
        set reload_spill_index to -1.

2000-01-04  Joel Sherrill (joel@OARcorp.com>

        * configure.in (m68*-*-rtemscoff*): New target, formal name for
        old m68*-*-rtems*.
        (m68*-*-rtemself*): New target.
        (mips64orion-*-rtems*): Remove duplicate definition of tm_file.
        (sparc*-*-rtemsaout*): New target, formal name for old sparc*-*-rtems*.
        (sparc*-*-rtemself*): New target.
        (sparc*-*-rtems*): Now elf not a.out.
        * config/i386/rtems.h: Include config/rtems.h.
        * config/i386/rtemself.h: Include config/rtems.h.
        * config/i960/rtems.h: Include config/rtems.h.
        * config/m68k/rtems.h: Include config/rtems.h.
        * config/m68k/rtemself.h: Include config/rtems.h.
        * config/mips/rtems64.h: Include config/rtems.h.
        * config/pa/rtems.h: Include config/rtems.h.
        * config/rs6000/rtems.h: Include config/rtems.h.
        * config/sh/rtems.h: Include config/rtems.h.
        * config/sh/rtemself.h: Include config/rtems.h.
        * config/sparc/rtems.h: Include config/rtems.h.
        * config/sparc/rtemself.h: Include config/rtems.h

Tue Jan  4 23:59:26 2000  Denis Chertykov <denisc@overta.ru>

        * final.c (shorten_branches): Correctly compute length of
        asms without operands.

Tue Jan  4 22:55:41 2000  Steve Chamberlain <sac@pobox.com>

        * configure.in: Add pj target.
        * configure: Regenerate.
        * config/pj: New directory.
        * config/pj/lib1funcs.S: New file.
        * config/pj/linux.h: New file.
        * config/pj/pj.c: New file.
        * config/pj/pj.md: New file.
        * config/pj/pjl.h: New file.
        * config/pj/t-pj: New file.
        * config/pj/xm-pj.h: New file

Tue Jan  4 22:30:16 2000  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (rest_of_compilation): Run shorten-branches before
        reg-stack for now.

2000-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (IS_XXX_REG, IS_XXX_REGNO): Swap behaviour of
        macros so that they're consistent with their names.
        * config/c4x/c4x.c (IS_XXX_REG, IS_XXX_REGNO): Likewise.
        * config/c4x/c4x.md (IS_XXX_REG, IS_XXX_REGNO): Likewise.

2000-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*addqi3_noclobber_reload): Ensure that CC never
        modified inadvertently.

2000-01-04  Joel Sherrill <joel@OARcorp.com>

        * configure.in (v850*-*-rtems*): New target.
        * configure: Regenerate.
        * config/v850/rtems.h: New file.

2000-01-04  Mumit Khan  <khan@xraylith.wisc.edu>

        * gthr-win32.h (__gthread_active_p): Support Mingw MT runtime.
        (__gthread_key_create): Likewise.
        (__gthread_key_dtor):  Likewise.
        (__gthread_once): Fix logic.
        (__gthread_key_delete): Cast away constness.

        * i386/cygwin.h (SUBTARGET_SWITCHES): Add -mthreads option.
        * invoke.texi: Document.
        * i386/mingw32.h (CPP_SPEC): Use.
        (LIBGCC_SPEC): Likewise.
        * i386/crtdll.h (LIBGCC_SPEC): Likewise.

2000-01-04  David Edelsohn  <edelsohn@gnu.org>

        * rs6000/sysv4.h (ASM_OUTPUT_DEF): Undefine.
        (HANDLE_PRAGMA_PACK): Undefine.
        (SLOW_UNALIGNED_ACCESS): Define.

2000-01-04  David Edelsohn  <edelsohn@gnu.org>

        * expmed.c (SLOW_UNALIGNED_ACCESS): Add mode and align parameters
        to default definition.
        (store_bit_field): Call SLOW_UNALIGNED_ACCESS with mode and alignment.
        (store_fixed_bit_field): Call macro with word_mode and alignment.
        (extract_bit_field): Call macro with relevant mode and alignment.
        * expr.c (SLOW_UNALIGNED_ACCESS): Add mode and align parameters
        to default definition.
        (move_by_pieces): Call SLOW_UNALIGNED_ACCESS with word_mode
        and alignment.
        (move_by_pieces_ninsns): Likewise.
        (clear_by_pieces): Likewise.
        (emit_push_insn): Likewise.
        (store_field): Call macro with relevant mode and alignment.
        (expand_expr): Likewise.
        (expand_expr_unaligned): Likewise.

        * rs6000.h (HANDLE_PRAGMA_PACK): Define.
        (SLOW_UNALIGNED_ACCESS): Define.
        (CASE_VECTOR_MODE): Always use 32-bit offsets.
        (ASM_FILE_END): Generate 64-bit symbol in 64-bit mode.
        (EXTRA_SECTION_FUNCTIONS): Indent .csect pseudo-op.
        (toc_section): Likewise and .toc pseudo-op.
        (ASM_DECLARE_FUNCTION): Likewise.  Align text more strictly in
        64-bit mode.
        (TEXT_SECTION_ASM_OP): Likewise.
        (ASM_OUTPUT_ADD_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT): Always use
        32-bit offsets.

        * a29k.h (SLOW_UNALIGNED_ACCESS): Add MODE and ALIGN parameters.
        * alpha.h (SLOW_UNALIGNED_ACCESS): Likewise.
        * arm/thumb.h (SLOW_UNALIGNED_ACCESS): Likewise.
        * gmicro.h (SLOW_UNALIGNED_ACCESS): Likewise.
        * fr30.h (SLOW_UNALIGNED_ACCESS): Likewise.

Tue Jan  4 11:44:13 2000  Jeffrey A Law  (law@cygnus.com)

        * regclass.c: Revert my Jan 4 change to loop cost computation.

Tue Jan  4 19:22:39 MET 2000  Jan Hubicka  <hubicka@freesoft.cz>

        * regclass.c (regclass): Do not obey REG_N_REFS in non-optimizing
        compilation.

2000-01-04  Stan Cox  <scox@cygnus.com>

        * haifa-sched.c (build_control_flow): Change unreachable simple
        loop test to check if current block has only one predecessor.
        (find_rgns): Initialize degree.  Use dest as degree index, not src.

2000-01-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_strlen): Initialize variable `icode'.

        * calls.c (expand_call): Likewise for
        `old_stack_arg_under_construction'.

        * cpphash.c (macroexpand): Likewise for `args' and `rest_zero'.

        * function.c (pad_to_arg_alignment): Likewise for `save_var' and
        `save_constant'.

        * gcc.c (execute): Likewise for `ut' and `st'.

        * genattrtab.c (attr_rtx): Likewise for `rt_val'.

        * genopinit.c (gen_insn): Likewise for `m1', `m2' and `op'.

        * jump.c (jump_optimize_1): Likewise for `temp2'.

        * local-alloc.c (block_alloc): Likewise for `r1'.

        * loop.c (recombine_givs): Likewise for `life_start' and `life_end'.

        * reg-stack.c (check_asm_stack_operands): Likewise for `clobber_reg'.
        (subst_asm_stack_regs): Likewise for `clobber_reg' and `clobber_loc'.

        * regmove.c (fixup_match_1): Likewise for `insn_const', `dst_node'
        and `set2'.

        * reload.c (find_reloads): Likewise for `goal_alternative_number'
        and `goal_earlyclobber'.

        * scan-decls.c (scan_decls): Likewise for `prev_id_end'.

        * sdbout.c (sdbout_one_type): Likewise for `member_scl'.

        * stupid.c (stupid_life_analysis): Likewise for `chain'.

        * unroll.c (copy_loop_body): Likewise for `copy'.

        * varasm.c (output_constructor): Likewise for `byte'.

Tue Jan  4 15:34:34 MET 2000  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.c (ix86_expand_move): Allow pushes of memory, offload to memory
        all FP constants for constant->reg moves.
        (ix86_split_to_parts): Try to convert memory address into immediate
        when available in the constant pool.
        * i386.h (PREFERRED_RELOAD_CLASS): Allow CONST_DOUBLE->integer reg
        moves.
        (LEGITIMATE_CONSTANT_P): Return 1.
        * i386.md (pushsf): New splitter to convert constant pool memory
        reference to immediate.
        (mov?f): Likewise; do not allow CONST_DOUBLE for reg moves before
        reload.

2000-01-04  Bernd Schmidt  <bernds@cygnus.co.uk>

        * i386.md (ashlsi3_cmpno): Don't accept variables shifts.
        (ashlhi3_cmpno, ashlqi3_cmpno, ashrsi3_cmpno, ashrhi3_cmpno,
        ashrqi3_cmpno, lshrsi3_cmpno, lshrhi3_cmpno, lshrqi3_cmpno): Likewise.
        (rotlsi3_cmpno, rotlhi3_cmpno, rotlqi3_cmpno, rotrsi3_cmpno,
        rotrhi3_cmpno, rotrqi3_cmpno): Likewise.

2000-01-04  Martin von Löwis  <loewis@informatik.hu-berlin.de>

        * ginclude/stdbool.h:  Support compilation as C++.

Tue Jan  4 01:35:13 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * fold-const.c (make_range): Don't try to reverse an unbounded range.

Tue Jan  4 00:18:46 2000  Jeffrey A Law  (law@cygnus.com)

        * regclass.c (regclass): Properly compute loop_cost.  Adjust
        comments.

        * regclass.c: Fix minor whitespace problems.

2000-01-03  Anthony Green  <green@cygnus.com>

        * config/i386/i386.md (builtin_setjmp_receiver): New pattern.
        Restore the pic register if required.

2000-01-03  Ulrich Drepper  <drepper@cygnus.com>

        * c-common.c (format_char_info): Update comment.
        (check_format_info): Recognize 'z' modifier in the same way 'Z'
        was recognized.  Emit warning for formats new in ISO C99 only
        if flag_isoc9x is not set.

Mon Jan  3 12:59:54 2000  Mark P. Mitchell  <mark@codesourcery.com>

        * config/mips/iris6gld.h: Fix typo in -mabi=n32 specs.

Mon Jan  3 15:33:37 MET 2000  Jan Hubicka  <hubicka@freesoft.cz>

        * combine.c (expand_compound_operation): Do not convert ZERO_EXTEND to
        SIGN_EXTEND, convert SIGN_EXTEND to ZERO_EXTEND.
        (make_compound_operation): Choose cheaper alternative between
        ZERO_EXTEND and SIGN_EXTEND when sign bit is not set.

        * regclass.c (op_costs): Remove global variable.
        (record_reg_classes): New parameter "op_costs" and "reg_pref".
        (record_operand_costs): Break out from ...
        (scan_one_insn): ... here.
        (dump_regclass): Make dumps nicer.
        (regclass): Dump preferrences choosed and changes done during passes.

2000-01-03  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (gen_df_reg): Fix for 32bit SPARC.

2000-01-03  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (gen_df_reg): New function.
        * config/sparc/sparc-protos.h (gen_df_reg): Add prototype.
        * config/sparc/sparc.md (movtf_no_e_insn_sp64+1,
        movtf_no_e_insn_sp64+2, movtf_no_e_insn_sp64+3, movtf_cc_sp64+1,
        movtf_cc_reg_sp64+1): Use it.

2000-01-02  Mark Mitchell  <mark@codesourcery.com>

        * integrate.c (copy_decl_for_inlining): Clear TREE_ADDRESSABLE on
        copied LABEL_DECLs.

Mon Jan  3 02:54:40 2000  Hans-Peter Nilsson  <hp@bitrange.com>

        * config/i386/i386.c (ix86_expand_unary_operator): Function
        definition made void.
        (ix86_expand_binary_operator): Update outdated preceding comment.
        * config/i386/i386-protos.h (ix86_expand_unary_operator): Update
        prototype.

        * config/i386/i386.c (override_options): Fix option-name typo.

2000-01-02  Mark Mitchell  <mark@codesourcery.com>

        * system.h (CEIL): Define.
        * builtins.c (CEIL): Remove.
        * expmed.c (CEIL): Likewise.
        * expr.c (CEIL): Likewise.
        * stor-layout.c (CEIL): Likewise.

2000-01-02  Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

        * expr.c (store_constructor_field): Fix typo introduced with last
        gcc2 merge.

2000-01-01  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (BINFO_N_BASETYPES): New macro.

2000-01-01  Bernd Schmidt  <bernds@cygnus.co.uk>

        * expmed.c (emit_store_flag): Prevent losing a pending stack
        adjust the same way we prevent losing queued increments.

Fri Dec 31 19:10:31 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (update_temp_slot_address): Handle case where sum of
        temporary address plus offset in register is a valid address.

1999-12-30  Herman A.J. ten Brugge  <Haj.Ten.Brugge@net.HCC.nl>

        * genrecog.c (change_state) Corrected typo.

1999-12-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (bcopy, bcmp, bzero, index, rindex, atof, atol, free,
        getcwd, getenv, getwd, sbrk, strstr, malloc, calloc, realloc,
        strerror, getrlimit, setrlimit, abort): Add prototype arguments.

1999-12-30  Bernd Schmidt  <bernds@cygnus.co.uk>

        * i386.c (ix86_expand_fp_compare): In non-sahf non-TARGET_IEEE
        case, expand GT comparisons correctly.  Fix a comment before this
        part of the code.

1999-12-30  Gabriel Dos Reis  <dosreis@cmla.ens-cachan.fr>

        * dwarfout.c: Include "frame.h"
        * dwarf2out.c: Likewise.
        * Makefile.in (dwarfout.o): Depend on frame.h
        (dwarf2out.o): Likewise.

1999-12-29  "Martin v. Loewis" <martin@loewis.home.cs.tu-berlin.de>

        Restore i386 binary compatibility in Dwarf EH info.
        * config/i386/i386.h (DWARF_FRAME_REGISTERS): Define as 17, the old
        value of FIRST_PSEUDO_REGISTER.
        * frame.h (DWARF_FRAME_REGISTERS): Default to FIRST_PSEUDO_REGISTER.
        (struct frame_state): Use DWARF_FRAME_REGISTERS.
        * dwarfout.c (output_reg_number): Ditto.
        * dwarf2out.c (reg_number, expand_builtin_init_dwarf_reg_sizes): Ditto.
        (DWARF_FRAME_RETURN_COLUMN): Default to DWARF_FRAME_REGISTERS.

1999-12-29  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/fixincl.c(wait_for_pid): sometimes a WSTOPSIG of zero is OK
        * fixinc/fixincl.tpl(<hack>TEST_CT): Just do the existence test once
        (<hack>_RE_CT): not needed
        * fixinc/fixlib.c(is_cxx_header): moved from fixtests.c
        rewritten to scan the file text once only
        "template<..." test added
        * fixinc/fixlib.h(apply_fix_p_t): moved from fixtests.c
        (is_cxx_header): declaration added
        * fixinc/fixtests.c(is_cxx_header): removed
        (apply_fix_p_t): removed
        (double_slash_test): is_cxx_header is only called once now
        * fixinc/hackshell.tpl: indexing the fixes is now done under DEBUG
        * fixinc/inclhack.def(FIXINC_DEBUG): added for testing DEBUG state
        within the templates.
        The borken spelling of "broken" was fixed.
        * fixinc/inclhack.tpl: The $VERBOSE level is used on various messages
        The default level depends on FIXINC_DEBUG.

1999-12-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * crtstuff.c: If !inhibit_libc, include stdlib.h/unistd.h.
        Otherwise provide a declaration for atexit.
        (init_dummy): Make sure dummy call to atexit is nevertheless
        called with correct number of args.

        * frame.c: Update comments referring to other files.

        * libgcc2.c: Likewise.

1999-12-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cse.c (free_element, get_element): Remove unused prototypes.

        * fold-const.c (extract_muldiv): Initialize variables `op0' and
        `op1'.

        * jump.c (invert_exp): Add explicit braces to avoid ambiguous
        `else' clauses.

Wed Dec 29 12:44:54 1999  Donald Lindsay  <dlindsay@cygnus.com>

        * configure.in,configure: case arm for mn10200-*-* now sets
        float_format=i32 so that float.h will correctly claim "double"
        to be 32 bits. Ran autoconf to generate configure from .in file.

Wed Dec 29 10:53:21 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (conditional zero): If op1 is a register, force it into
        the same register as op0.

1999-12-28  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (BINFO_BASETYPES): Improve documentation.

1999-12-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (--enable-checking): Use a more portable `for'
        loop syntax.

1999-12-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (AC_DECL_SYS_SIGLIST, xm-siglist.h,
        arm/xm-netbsd.h, NO_SYS_SIGLIST): Don't use.

        * xm-siglist.h, arm/xm-netbsd.h, mips/xm-news.h, mips/xm-sysv4.h:
        Delete files.

        * gcc.texi (NO_SYS_SIGLIST, sys_siglist, SYS_SIGLIST_DECLARED):
        Delete descriptions.

        * i386/osf1elf.h, i386/xm-cygwin.h, i386/xm-mingw32.h, m68k/3b1.h,
        m68k/a-ux.h, m68k/dpx2.h, m68k/plexus.h, m68k/xm-hp320.h,
        m88k/xm-m88k.h, mips/x-sni-svr4, pa/xm-pa.h, pa/xm-pahpux.h,
        pa/xm-papro.h, we32k/xm-we32k.h, winnt/xm-winnt.h, xm-interix.h,
        xm-svr4.h: Remove all instances of sys_siglist handling.

1999-12-27  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (cmp_zero_qi,
        cmp_zero_extendqisi2_andcc_set, cmp_zero_qi_sp64,
        cmp_zero_extendqidi2_andcc_set): New patterns.

1999-12-28  Manfred Hollstein  <mhollstein@cygnus.com>

        * m68k/t-mot3300-gald (CROSS_LIBGCC1): Define to libgcc1-asm.a.
        (LIB1ASMSRC, LIB1ASMFUNCS, LIB2FUNCS_EXTRA): Define.
        (fpgnulib.c, xfgnulib.c): Add rules.
        * m68k/t-mot3300-gas: Likewise.

1999-12-27  Ian Lance Taylor  <ian@zembu.com>

        * configure.in: Avoid [[ by using test and changequote.  Add
        changequote required by 1999-12-14 change.
        * configure: Rebuild.

1999-12-27  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.h: Fix typo from 12/17/99 libgcc2 fix.

1999-12-27  Christophe Jaillet  <jaillet.christophe@caramail.com>

        * alias.c (nonlocal_reference_p): Add else for disjoint ifs.
        * flow.c (find_use_as_address): Likewise.
        * function.c (fixup_var_refs_1): Likewise.
        (walk_fixup_memory_subreg, fixup_stack_1): Likewise.
        * jump.c (invert_exp, redirect_exp): Likewise.
        * loop.c (replace_call_address): Likewise.
        (count_nonfixed_reads): Likewise.
        * rtlanal.c (modified_between_p): Likewise.
        (modified_in_p, volatile_insn_p, volatile_refs_p): Likewise.
        (side_effects_p, replace_regs, jmp_uses_reg_or_mem): Likewise.
        * unroll.c (remap_split_bivs): Likewise.

1999-12-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * diagnostic.c (v_message_with_decl): Use .* format specifier
        instead of building the format specifier width manually.

        * system.h (strsignal): Don't check HAVE_STRSIGNAL when
        determining whether to provide a prototype.  Remove the
        sys_siglist clause in the conditional.

1999-12-23  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * fold-const.c (operand_equal_p): Use memcmp to compare string
        constants.
        Suggested by D. J. Bernstein

1999-12-17  Jakub Jelinek  <jakub@redhat.com>

        * config/h8300/h8300.h (TARGET_H8300H, TARGET_H8300S): Make sure
        UNITS_PER_WORD and BITS_PER_WORD are compile time constants when
        compiling libgcc2.
        * config/mips/mips.h (TARGET_64BIT): Likewise.
        * config/rs6000/rs6000.h (TARGET_POWERPC64): Likewise.
        * libgcc2.c: Use {,U}{HW,W,DW}type and DWunion everywhere instead
        of {SI,DI}type and DIunion.  Define these types to QI/HI modes on
        dsps.  Give routines proper names if SI/DI modes are not used.
        * longlong.h: Use DWunion instead of DIunion.

1999-12-26  Zack Weinberg  <zack@wolery.cumb.org>

        * acconfig.h: New ENABLE flags: TREE_CHECKING, RTL_CHECKING,
        GC_CHECKING, GC_ALWAYS_COLLECT.
        * configure.in: Allow --enable-checking with an argument
        listing check modes to enable.
        * config.in, configure: Rebuilt.
        * ggc-page.c, ggc-simple.c: Define GGC_POISON (and
        GGC_ALWAYS_VERIFY for ggc-simple.c) only if
        ENABLE_GC_CHECKING.  Define GGC_ALWAYS_COLLECT only if
        ENABLE_GC_ALWAYS_COLLECT.
        * rtl.h, rtl.c: Change ENABLE_CHECKING to ENABLE_RTL_CHECKING
        throughout.
        * tree.h, tree.c: Change ENABLE_CHECKING to
        ENABLE_TREE_CHECKING throughout.

Sun Dec 26 07:48:20 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * fold-const.c (fold_truthop): Properly check for FP RHS.

1999-12-24  Mark Mitchell  <mark@codesourcery.com>

        * toplev.h (note_deferall_of_defined_inline_function): Declare.
        * toplev.c (note_deferral_of_defined_inline_function): New
        function, split out from ...
        (rest_of_compilation): ... here.  Use it.

Fri Dec 24 12:34:26 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor): Don't call clear_storage if size is
        variable.

1999-12-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (toplev.o): Depend on loop.h.

        * dwarfout.c: Include tm_p.h.

        * emit-rtl.c (restore_emit_status): Mark parameter with
        ATTRIBUTE_UNUSED.

        * final.c (final_scan_insn): Likewise.

        * flow.c (flow_nodes_print, flow_exits_print, flow_loops_cfg_dump,
        flow_loop_nested_p, flow_loop_exits_find, flow_loop_nodes_find,
        flow_depth_first_order_compute, flow_loop_pre_header_find,
        flow_loop_tree_node_add, flow_loops_tree_build,
        flow_loop_level_compute, flow_loops_level_compute,
        flow_loop_outside_edge_p): Add prototypes.
        (recompute_reg_usage): Mark parameters with ATTRIBUTE_UNUSED.

        * ggc-callbacks.c (lang_mark_tree, lang_mark_false_label_stack):
        Mark with ATTRIBUTE_NORETURN.

        * hash.c (hash_newfunc): Mark parameter with ATTRIBUTE_UNUSED.

        * local-alloc.c (no_conflict_p): Likewise.

        * loop.c (insert_bct): Hide definitions of variables with hidden
        usage.
        (note_reg_stored): Mark parameter with ATTRIBUTE_UNUSED.

        * regclass.c (memory_move_secondary_cost): Mark variable `mem'
        with ATTRIBUTE_UNUSED.
        (record_reg_classes): Mark parameter with ATTRIBUTE_UNUSED.
        (reg_scan): Likewise.

        * reload.c (find_reloads): Remove unused variables `changed'.

        * reload1.c (reload_reg_class_lower): Don't unnecessarily cast
        away const-ness.
        (allocate_reload_reg): Mark parameter with ATTRIBUTE_UNUSED.
        Remove unused variable `insn'.

        * toplev.c: Include loop.h.
        (report_file_and_line): Remove unnecessary prototype.

        * tree.c (build_block): Mark parameter with ATTRIBUTE_UNUSED.

        * unroll.c (biv_total_increment): Likewise.

Thu Dec 23 23:15:22 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (emit_input_reload_insns): Restore old behaviour
        wrt. 'special' reloads.

1999-12-23  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in (ggc-simple.c, ggc-page.c): Don't depend on
        hash.h.  (cse.c): Don't depend on hashtab.h.

        * cse.c: Don't include hashtab.h.
        (hash_cse_reg_info, cse_reg_info_equal_p): Delete prototypes
        of dead functions.
        * ggc-simple.c: Don't include hash.h.

1999-12-22  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_abstract_origin_attribute): Call
        gen_abstract_function on our function context.

Thu Dec 23 03:57:10 1999  Hans-Peter Nilsson  <hp@bitrange.com>

        * Makefile.in (INTEGRATE_H): Fix typo: INTEGRATE_H, not INTREGRATE_H.

1999-12-23  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_address_cost): Add statement to default
        case in switch.

1999-12-22  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*addqi3_noclobber_reload): Change operand 0
        constraints to "a!r".

1999-12-21  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (calls.o): Depend on function.h.
        (alias.o): Likewise.

1999-12-21  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (emit_reload_insns): Break out code and variables into...
        (input_reload_insns, other_input_address_reload_insns,
        other_input_reload_insns, input_address_reload_insns,
        inpaddr_address_reload_insns, output_reload_insns,
        output_address_reload_insns, outaddr_address_reload_insns,
        operand_reload_insns, other_operand_reload_insns,
        other_output_reload_insns): ... new static variables, and...
        (emit_input_reload_insns, emit_output_reload_insns, do_input_reload,
        do_output_reload): ... new functions.

Tue Dec 21 07:06:36 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * pa.h (FUNCTION_ARG_BOUNDARY): Never return 0.

1999-12-21  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * md.texi: Add c4x constraints documentation.

1999-12-21  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * config/i386/dgux.c (struct option): Rename to
        lang_independent_option.
        (struct m_options): Add description field.
        (output_options): Rename option type, add sep declaration, output
        ix86_cpu_string and ix86_arch_string only if set.
        (output_file_start): Rename option type.

Mon Dec 20 23:15:36 1999  Mike Stump  <mrs@wrs.com>

        * Makefile.in (crtbegin.o, crtend.o, s-crtS): Depend on
        stmp-int-hdrs.
        (libgcc2.a): Similarly.

Mon Dec 20 23:06:47 1999  David Edelsohn  <edelsohn@gnu.org>

        * longlong.h (_ARCH_PPC): Only protect add_ssaaaa and sub_ddmmss
        with W_TYPE_SIZE == 32.  Do not fall through to POWER architecture
        for umul_ppmm and smul_ppmm if !_ARCH_PPC and !_ARCH_POWER.

Mon Dec 20 23:02:03 1999  Jeffrey A Law  (law@cygnus.com)

        * fold-const.c (real_hex_to_f): Remove unused "isldouble" variable.
        Remove redundant initialization of "frexpon" and "expon".

Mon Dec 20 15:00:04 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.c (real_value_from_int_cst): Clear REAL_VALUE_TYPE object first.

        * expr.c (store_constructor): New argument SIZE; pass to clear_storage.
        (store_constructor_field, expand_expr): Pass new arg.

1999-12-20  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (explow.o): Depend on function.h.

        * stor-layout.c (set_sizetype): Fix typo.

1999-12-20  Bernd Schmidt  <bernds@cygnus.co.uk>

        * function.c (cfun): Renamed from current_function.  All users
        changed.
        * function.h (cfun): Rename declaration as well.

        * reload.h (struct insn_chain): Change live_throughout and dead_or_set
        to be of type regset_head, not regset.  All users changed by adding
        address operator.
        * reload1.c (new_insn_chain): Don't allocate regsets, just clear them.

1999-12-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/rtems.h: New file.

1999-12-19  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (spill_failure): Take class of failed reload as argument
        and print it.  Caller changed.

Sun Dec 19 07:50:42 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * rs6000.h (SUBTARGET_DEFAULT): New macro.
        (TARGET_SWITCHES): Allow subtargets to default switches.
        * rs6000/vxppc.h (SUBTARGET_DEFAULT): New macro.

1999-12-18  Mark Mitchell  <mark@codesourcery.com>

        * crtstuff.c (__do_global_ctors_aux): Do not call __cxa_finalize
        in a main program.

Sat Dec 18 20:42:43 1999  Richard Henderson  <rth@cygnus.com>

        * cccp.c (main): Define __STDC_VERSION__ as necessary.
        * cppinit.c (cpp_handle_option): Likewise.

        * ginclude/stdarg.h (va_copy): Use __STDC_VERSION__ to
        determine when to define.

Sat Dec 18 20:34:00 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_emit_conditional_move): If TARGET_FIX, handle
        cmove with mismatched test and data modes.

Sat Dec 18 20:30:15 1999  Richard Henderson  <rth@cygnus.com>

        * c-typeck.c (c_expand_start_case): Don't warn for long switch
        in system headers.

Sat Dec 18 16:28:43 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c: Minor reformatting.
        * flow.c: Likewise.
        * regs.h: Likewise.
        * stor-layout.c: Likewise.
        * fold-const.c: Likewise.
        (OVERFLOW_SUM_SIGN): Renamed from overflow_sum_sign.
        (struct cb_args, const_binop_1, const_binop): Pass type of arg,
        not arg itself.
        (size_int_wide): Cache nodes even if garbage collecting.
        (twoval_comparison_p): Reenable SAVE_EXPR case if operand
        of SAVE_EXPR has no side effects.
        * cse.c: Move a comment.
        * tree.c: Minor reformatting.
        (int_size_in_bytes): Return -1 if constant overflows.

Sat Dec 18 18:30:20 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * unroll.c (copy_loop_body): Don't treat a REG like a PLUS.

1999-12-18 10:42 -0800  Zack Weinberg  <zack@wolery.cumb.org>

        * objc/objc-parse.c: Regenerate.  This file must be rebuilt
        after any change to c-parse.in, even if objc-parse.y didn't
        change.  Oops.

1999-12-18  David S. Miller  <davem@redhat.com>

        * toplev.c (rest_of_compilation): Restore BLOCK tree
        reconstruction and branch shortening changes lost in
        December 18th change.

Sat Dec 18 05:29:29 1999  Scott Bambrough  <scottb@netwinder.org>

        * config/arm/linux-elf.h: Change all instances of
        ARM_FLAG_SHORT_BYTES to ARM_FLAG_MMU_TRAPS.
        * config/arm/uclinux-elf.h: Likewise.

1999-12-18 Gabriel Dos Reis  <gdr@codesourcery.com>

        * toplev.c (notice, vmessage, v_message_with_file_and_line,
        v_message_with_decl, file_and_line_for_asm,
        v_error_with_file_and_line, v_error_with_decl, v_error_for_asm,
        verror, vfatal, v_warning_with_file_and_line, v_warning_with_decl,
        v_warning_for_asm, vwarning, vpedwarn, v_pedwarn_with_decl,
        v_pedwarn_with_file_and_line, vsorry, vnotice, count_error,
        pfatal_with_name, fatal_io_error, need_error_newline,
        last_error_function, last_error_tick, announce_function,
        default_print_error_function, print_error_function,
        report_error_function, fnotice, error_with_file_and_line,
        error_with_decl, error_for_asm, error, set_fatal_function, fatal,
        _fatal_insn, _fatal_insn_not_found, warning_with_file_and_line,
        warning_with_decl, warning_for_asm, warning, pedwarn,
        pedwarn_with_decl, pedwarn_with_file_and_line, sorry): Move to
        diagnostic.c
        (compile_file): Use fnotice instead of notice.  Adjust call.

        * diagnostic.c: New file.

        * Makefile.in (OBJS): Include diagnostic.o
        (diagnostic.o): Define dependence.

1999-12-18  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (ASM_OUTPUT_XXX): Wrap in do-while(0).
        Tweak formatting.

1999-12-18  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (rpts_top, rptb_top): Add clobbers for rs and re.

1999-12-17 13:21 -0800  Zack Weinberg  <zack@rabi.columbia.edu>

        * fixtests.c (is_cxx_header): New fn, split out of
        double_slash_test.
        (else_endif_label): Allow "#endif // comment" in C++ headers,
        as determined by is_cxx_header.
        * fixfixes.c (else_endif_label_fix): Update comment.
        * fixincl.c: Don't output VERB_PROGRESS lines if stdout is not
        a tty.
        * genfixes: Correct double thinko in commandline parsing.
        * hackshell.tpl: Generate correct sh syntax for bypass
        entries.

        * inclhack.def (all): Whenever an inserted preprocessor
        conditional is split over multiple lines, use double
        backslashes in this file so the fixed header will be readable.

        (AAB_fd_zero_glibc_1_0): Rename to AAB_fd_zero_asm_posix_types_h
        and add bypass entry for correct version of this header.
        (AAB_fd_zero_glibc_1_x): Rename to AAB_fd_zero_gnu_types_h.
        (AAB_fd_zero_glibc_2_0): Rename to AAB_fd_zero_selectbits_h.

        (hpux8_bogus_inlines): New fix, split from...
        (ultrix_atof_param) ... here.
        (math_expression): Add bypass entry keyed to glibc comment
        indicating the problem has been dealt with; disable
        unnecessary sed operations; update commentary.
        (math_gcc_ifndefs): Rename to math_huge_val_from_dbl_max,
        add select and bypass entries, simplify shell operation.
        (math_huge_val_ifndef): Split from math_gcc_ifndefs.

        (ip_missing_semi, rs6000_param, tinfo_cplusplus,
         ultrix_atof_param): Add select entry.
        (stdio_va_list, sunos_mather_decl): Add bypass entry.
        (systypes_for_aix, sysv86_string, tinfo_cplusplus): Put the
        comments with the fixes they describe.

        * c-parse.in (string action): Do not warn about ANSI string
        concatenation in system headers.  Affects C parser only.
        * c-parse.y, c-parse.c, c-parse.h: Rebuild.

1999-12-16  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.h (TARGET_ARCH32): Exchange ifdefs so that if
        compiling libgcc2 the macro depends always on arch cpp defines.

Fri Dec 17 10:34:16 1999  Richard Earnshaw <rearnsha@arm.com>

        * loop.c (insert_loop_mem): Don't record MEMs from inside
        EXPR_LISTs.

Fri Dec 17 12:08:11 MET 1999  Jan Hubicka  <hubicka@freesoftr.cz>

        * regclass.c (regclass): Do not use flowgraph when not optimizing.

        * gcse.c (try_replace_reg): Do replacements in REG_EQUAL/REG_EQUIV
        notes too, create one when replacement failed, attempt to simplify
        resulting notes.
        (cprop_insn): Propagate even to registers mentioned only in REG_EQUAL
        or REG_EQUIV notes.

1999-12-16  Mark Mitchell  <mark@codesourcery.com>

        * crtstuff.c (__dso_handle): Declare.
        (__cxa_finalize): Likewise.
        (do_global_dtors_aux): Call __cxa_finalize if __dso_handle is
        non-NULL.

        * invoke.texi: Document -fuse-cxa-atexit.

        * tree.h (ptr_type_node): Document.
        (const_ptr_type_node): Likewise.

Fri Dec 17 01:32:38 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * regmove.c (optimize_reg_copy_1): Ignore LOOP notes.
        (optimize_reg_copy_2): Likewise.
        (optimize_reg_copy_3): Likewise.
        (fixup_match_2): Likewise.
        (regmove_optimize): Likewise.
        (fixup_match_1): Liekwise.

        * i386.md (HI to SImode promoting splitters): Rewrite.
        (pushsf mem peep2): New.
        (testhi to andhi peep2): Remove.
        * i386.h (x86_promote_QImode): New.
        (TARGET_PROMOTE_QImode): New.
        (PREDICATE_CODES): Add promotable_binary_operator.
        * i386.c (x86_promote_QImode0: New.
        (promotable_binary_operator): New.
        * i386-protos.h (promotable_binary_operator): New.

        * i386.md (test?i_1): Use "nonmemory_operand" predicate, simplify
        condition.
        (one_cmpl?i*): Pass "NOT" to unary_operator_ok.

1999-12-16  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (INTREGRATE_H): Rename to INTEGRATE_H.
        * function.c (insert_block_after_note): Remove.
        (retrofit_block): Likewise.
        (identify_blocks): Fix indentation.
        (reorder_blocks): Don't NULL out NOTE_SOURCE_FILE for a
        NOTE_INSN_BLOCK_BEG or NOTE_INSN_BLOCK_END.
        * function.h (insert_block_after_note): Remove prototype.
        (retrofit_block): Likewise.
        * integrate.c (expand_inline_function): Don't call
        find_loop_tree_blocks.  Use expand_start_bindings_and_block, not
        just expand_start_bindings.  Use the block_map to remap old
        NOTE_BLOCKs to new ones.
        (integrate_decl_tree): Keep track of remapped blocks.
        * integrate.h (struct inline_remap): Add block_map.
        * stmt.c (expand_fixup): Don't try to retrofit_blocks.  Just set
        NOTE_BLOCK on the notes.
        (expand_start_bindings): Rename to ...
        (expand_start_bindings_and_block): Add parameter.  Set NOTE_BLOCK.
        (expand_end_bindings): Set NOTE_BLOCK.
        * toplev.c (rest_of_compilation): In function-at-a-time-mode,
        reconstruct the BLOCK tree.
        * tree.h (expand_start_bindings): Macroize.  Call ...
        (expand_start_bindings_and_block): New function.

1999-12-16  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (print_operand): Cast fprintf arguments
        to match the format.

1999-12-16  David S. Miller  <davem@redhat.com>

        * expr.c (emit_move_insn_1): Only emit clobbers if one of
        the outputs is a SUBREG.
        * rtlanal.c (reg_overlap_mentioned_p): Revert December 15th
        change.

        * config/sparc/sparc.c (epilogue_renumber): Add default case
        to switch stmt.

Thu Dec 16 11:33:57 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * toplev.c (rest_of_compilation): Run branch shortening after
        reg-stack.

        * regclass.c (loop_depth): Remove
        (scan_one_insn): Do not handle LOOP_NOTE insns.
        (regclass): Go through basic blocks and set loop_cost

Thu Dec 16 02:56:25 1999  Zack Weinberg  <zack@bitmover.com>

        * tree.h (DECL_FROM_INLINE): Check DECL_ABSTRACT_ORIGIN too.

Thu Dec 16 10:43:35 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (movqi): Use "nonimmediate_operand" for output operand.
        (movstrictqi, movdi, movsf, movdf, movxf): Likewise.
        (adddi, addqi, addhi, subdi, subqi, subhi, ffs): Likewise.

Thu Dec 16 02:41:26 1999  Richard Henderson (rth@cygnus.com)

        * loop.c (insert_loop_mem): Ignore memory clobbers.

        * combine.c (simplify_comparison): Reduce (OP (MINUS A B) 0)
        to (OP A B).

Thu Dec 16 02:26:11 1999  Jeffrey A Law  (law@cygnus.com)

        * profile.c: Remove redundant #include "output.h".

        * h8300.md (HImode preinc peephole): Fix typo.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

        * function.c (retrofit_block): Abort if we don't find a suitable insn.
        (insert_block_after_note): Abort if we don't have a previous block.
        Remove FN parameter.
        * function.h: Adjust.

1999-12-15  Mark Mitchell  <mark@codesourcery.com>

        * builtins.c (expand_builtin_mathfn): Make sure not to expand the
        argument more than once.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

        * stmt.c (expand_decl): Expand upper bound of a dynamic array.

1999-12-15  Jakub Jelinek  <jakub@redhat.com>

        * expr.c (emit_group_load): Use dst mode if src is VOIDmode.

Wed Dec 15 16:11:55 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * function.c (PREFERRED_STACK_BOUDNARY): Provide default value.
        (assign_stack_local_1): Limit alignment to PREFERRED_STACK_BOUNDARY,
        update stack_alignment_needed.
        (prepare_function_start): Initialize stack_alignment_needed
        * function.h (struct function): Add field stack_alignment_needed.

Wed Dec 15 14:55:24 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * caller-save.c (insert_one_insn): Returns struct insn_chain *.
        Handle live_throughout / dead_or_set instead of live_before /
        live_after.
        (save_call_clobbered_regs): Get register livenessinformation from
        chain->live_throughout.
        (add_stored_regs): New function.
        (insert_restore, insert_save): Add restored / saved registers to
        dead_or_set.
        * global.c (reg_dies): New parameter chain.
        (reg_becomes_live): Third parameter is regs_set now.
        Changed all callers.
        (reg_dies): New parameter chain.  Changed all callers.
        (build_insn_chain): Set live_throughout instead of
        live_before / live_after.
        * reload.h (struct insn_chain): Replace members live_before /
        live_after with live_throughout / dead_or_set.
        * reload1.c (new_insn_chain): Handle live_throughout / dead_or_set
        instead of live_before / live_after.
        (maybe_fix_stack_asms, find_reload_regs, finish_spills): Likewise.
        (order_regs_for_reload, find_reg, finish_spills): Likewise.
        (choose_reload_regs_init): Likewise.
        * stupid.c (current_chain, find_clobbered_regs): Delete.
        (stupid_life_analysis): Set chain->live_throughout chain->dead_or_set
        instead of chain->live_before / chain->live_after.
        (mark_hard_ref): New function.
        (stupid_mark_refs): Call mark_hard_ref. Clear chain->live_throughout.

1999-12-15  David S. Miller  <davem@redhat.com>

        * rtlanal.c (reg_overlap_mentioned_p): Handle CONCAT.

Wed Dec 15 15:05:30 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * flow.c (calculate_loop_depth): Make global, remove prototype,
        rewrite to use new loop infrastructure.
        (find_basic_block): Remove calculate_loop_depth call.
        * toplev.c (rest_of_compilation): Call find_basic_block.
        * output.h (calculate_loop_depth): Declare.

        * flow.c (dump_flow_info): Dump loop_depth.
        (flow_loops_nodes_find): Increase loop_depth for basic block in the
        body.
        (flow_loops_find): Initialize the loop_depth for each basic block.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

        * tree.c (decl_function_context): Handle virtual functions.

        * tlink.c (scan_linker_output): Don't look in demangled name when
        looking for linker output keywords.

        * dwarfout.c (output_type): We can defer namespace-scope classes.

Wed Dec 15 01:23:29 1999  Jeffrey A Law  (law@cygnus.com)

        * regclass.c (record_reg_classes): Update comment for merging
        register class preferences in reg->reg copies.  Tighten conditions
        for merging register class preferences in reg->reg copies.

Wed Dec 15 02:19:32 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (tablejumpdi): Generate DImode LABEL_REF.

1999-12-14  Geoff Keating  <geoffk@cygnus.com>

        * config/m68k/m68020-elf.h (ENDFILE_SPEC): Delete.
        (INIT_SECTION_ASM_OP): Delete.
        (FINI_SECTION_ASM_OP): Delete.
        (STARTFILE_SPEC): Define to hold just crtbegin.o.

1999-12-14  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (add_abstract_origin_attribute): Do call abort if
        the abstract origin wasn't emitted.

        * dwarf2out.c (class_scope_p): New fn.
        (gen_subprogram_die): Use it.
        (gen_variable_die): Use it.  Tweak logic.
        (gen_struct_or_union_type_die): Check context_die to determine
        if we're function-local.
        (dwarf2out_decl): Check DECL_BUILT_IN, not DECL_FUNCTION_CODE.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (check_dbra_loop): Can't reverse a biv that has
        maybe_multiple set.

1999-12-14  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Add support for -mcpu=arm720 command line
        switch.

Tue Dec 14 18:13:32 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): Fix sign of giv lifetime calculation
        for givs made from biv increments.

Tue Dec 14 08:11:27 1999  Richard Henderson  <rth@cygnus.com>

        * configure.in (alpha-osf, alpha-linux): Handle ev6[78].
        * alpha.c (override_options): Recognize -mcpu=ev67.
        * alpha.h (CPP_CPU_EV67_SPEC): New.
        (CPP_CPU_DEFAULT_SPEC): Examine TARGET_CPU_DEFAULT to use it.
        (EXTRA_SPECS): Update.

Tue Dec 14 08:04:28 1999  Richard Henderson  <rth@cygnus.com>

        * cppp.c (main): Set trigraphs and __STRICT_ANSI__ as
        appropriate for -lang-c89 and -std=*.
        * cppinit.c (cpp_handle_option): Likewise.
        (new_pending_define): New, split out from cpp_handle_option.
        * gcc.c (default_compilers): Don't define __STRICT_ANSI__
        or enable trigraphs for -ansi/-std=*.

        * ginclude/stdarg.h (__va_copy): New.
        (va_copy): Don't define for C89.

Tue Dec 14 08:37:27 CST 1999 Clinton Popetz  <cpopetz@cygnus.com>

        * config/arm/arm.md (mulsidi3adddi, umulsidi3adddi): New patterns
        for long long multiply-accumulate.

Tue Dec 14 13:51:38 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * regclass.c (scan_one_insn): Set loop_cost to 1 when
        optimizing for size.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (reload): Can't avoid select_reload_regs/finish_spills
        if something changed.  Back out that part of yesterday's changes.

        * loop.c (loop_max_reg): New static variable.
        (loop_optimize): Initialize it.  Eliminate one unnecessary call to
        max_reg_num.
        (scan_loop): Call reg_scan_update whenever we may have added new
        registers, and update loop_max_reg.

Tue Dec 14 12:07:29 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * regclass.c  (record_reg_classes): Do not do the copying preferrencing
        when source does not die.

        * regclass.c (record_reg_classes): Handle INOUT operands propertly.

1999-12-14  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/linux64.h (TARGET_LIVE_G0,
        TARGET_BROKEN_SAVERESTORE): Don't support weird SPARC
        variants on Linux.
        * config/sparc/linux.h (TARGET_LIVE_G0,
        TARGET_BROKEN_SAVERESTORE): Likewise.
        * config/sparc/linux-aout.h (TARGET_LIVE_G0,
        TARGET_BROKEN_SAVERESTORE): Likewise.

        * config/sparc/sparc.h (SPARC_DEFAULT_CMODEL): Default to CM_32.
        (CONDITIONAL_REGISTER_USAGE): For block profiling fix %g4 on sparc64,
        not %g2.
        (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Use %g4 instead of %g2
        as sparc64 block profiling register.
        * config/sparc/sparc.c (sparc_override_options): Allow block
        profiling with -m32.
        (sparc_block_profiler): Use %g4 instead of %g2 as sparc64 block
        profiling register.
        * config/sparc/linux64.h (MACHINE_STATE_*): Only provide these
        macros on TARGET_ARCH32. sparc.h has macros good enough for sparc64.
        * config/sparc/sol2.h (MACHINE_STATE_*): Likewise.

        * config/sparc/xm-sp64.h: Avoid using __sparc_v9__ when testing
        for sparc64.
        * config/sparc/sparc.h: Likewise.
        * config/sparc/xm-sysv4-64.h: Likewise.
        * config/float-sparc.h: Likewise.
        * glimits.h: Likewise.
        * longlong.h: Likewise.

        * config/sparc/linux64.h (DEFAULT_VTABLE_THUNKS): Define to 1.
        (ASM_IDENTIFY_GCC): Remove.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

        * combine.c (combine_simplify_rtx): Don't make shared rtl.
        (simplify_logical): Likewise.

1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>

        * cccp.c (INO_T_EQ): Disable inode-based optimization for Cygwin.
        * cppfiles.c (INO_T_EQ): Likewise.

1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/crtdll.h (STARTFILE_SPEC): Add -pg profiling support.
        * i386/mingw32.h (LIB_SPEC): Likewise.
        (STARTFILE_SPEC): Likewise.
        * i386/uwin.h (LIB_SPEC): Likewise.
        (STARTFILE_SPEC): Likewise.

        * i386/mingw32.h (SUBTARGET_PROLOGUE): Override Cygwin definition.
        * i386/uwin.h (SUBTARGET_PROLOGUE): Likewise.

Mon Dec 13 20:25:29 1999  Jeffrey A Law  (law@cygnus.com)

        * combine.c (combine_simplify_rtx): Fix order of checks for
        (ashiftrt foo C) -> (lt foo (const_int 0)) simplification.

1999-12-13  Clinton Popetz  <cpopetz@cygnus.com>

        * config/arm/arm.md  (*mulsidi3adddi, *umulsidi3adddi) Backed out
        12/10/99 change, reapplied to merged-arm-thumb-backend-branch.

1999-12-10  Bernd Schmidt  <bernds@cygnus.co.uk>

        * hard-reg-set.h (inv_reg_alloc_order): Declare if REG_ALLOC_ORDER is
        defined.
        * regclass.c (inv_reg_alloc_order): New array.
        (regclass_init): If REG_ALLOC_ORDER is defined, initialize it.

        * reload.h (struct insn_chain): Delete fields group_size, group_mode,
        counted_for_groups, counted_for_nongroups.  Add fields rld and
        n_reloads.
        * reload.c (push_secondary_reload): Don't set nongroup field of
        new reloads.
        (push_reload): Likewise.
        (find_reloads): Delete code to compute nongroup fields.
        * reload1.c (reload_insn_firstobj): New static variable.
        (pseudos_counted, spilled_pseudos): Now of type regset_head.  All
        users changed.
        (calculate_needs, find_tworeg_group, find_group, possible_group_p,
        count_possible_groups, modes_equiv_for_class_p, new_spill_reg,
        dump_needs, maybe_mark_pseudo_spilled, hard_reg_use_compare): Delete
        functions.
        (count_pseudo, select_reload_regs, copy_reloads, find_reg): New
        functions.
        (struct hard_reg_n_uses): Deleted.
        (potential_reload_regs): Deleted.
        (init_reload): Initialize spilled_pseudos and pseudos_counted.
        (reload): Don't try to allocate reload registers if we already know
        we have to make another pass.  Call select_reload_regs.  Free memory
        starting with reload_firstobj when starting another pass.
        Don't allocate spilled_pseudos.
        (calculate_needs_all_insns): Call copy_reloads for an insn that
        needs reloads; don't call calculate_needs.
        (spill_cost): New static array.
        (used_spill_regs_local): New static variable.
        (order_regs_for_reload): Rewrite to lose hard_reg_n_uses and the code
        to compute potential_reload_regs.
        (find_reload_regs): Completely rewritten to use find_reg.
        (allocate_reload_reg): Don't test counted_for_groups or
        counted_for_nongroups.  Lose NOERROR arg and code to give an error;
        all cllers changed.
        (choose_reload_regs): Add fallback code that uses the existing
        register allocation from find_reload_regs.

Mon Dec 13 00:54:14 1999  Philippe De Muyter  <phdm@macqel.be>

        * flow.c (create_edge_list): Cast xmalloc return value.

Mon Dec 13 00:47:58 1999  Jeffrey A Law  (law@cygnus.com)

        * doprnt.c: Remove incorrect comment closure.

        * cse.c: Fix a few minor whitespace goofs.

1999-12-13  Don Bowman  <don@pixstream.com>

        * mips/vxworks.h: Fix problem with comment termination.
        (EXTRA_SECTIONS): Add in_sbss.
        (EXTRA_SECTION_FUNCTIONS): Corresponding changes.

1999-12-12  David S. Miller  <davem@redhat.com>

        * cse.c (struct cse_reg_info): Add hash_next member,
        reorder rest of struct for better packing on 64-bit
        hosts.
        (cse_reg_info_tree): Kill.
        (REGHASH_SHIFT, REGHASH_SIZE, REGHASH_MASK, reg_hash,
        REGHASH_FN): New custom pow2 hash mechanism.
        (NBUCKETS): Kill.
        (HASH_SHIFT, HASH_SIZE, HASH_MASK, HASH, table): Rework to
        use a pow2 hash table.
        (get_cse_reg_info): Rework to use new REGHASH.
        (new_basic_block): Likewise, use HASH_SIZE, and inline
        free_element call.
        (remove_from_table): Rework to use HASH_SIZE/HASH_MASK,
        and inline free_element call.
        (lookup_as_function, insert, flush_hash_table, invalidate,
        remove_invalid_refs, remove_invalid_subreg_refs, rehash_using_reg,
        invalidate_for_call, use_related_value, find_comparison_args,
        fold_rtx, equiv_constant, cse_insn, invalidate_memory): Likewise.
        (hash_cse_reg_info, cse_reg_info_equal_p, free_element,
        get_element): Kill.

Sun Dec 12 21:31:44 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_basic_block): Free qty_table consistently.

1999-12-12  David S. Miller  <davem@redhat.com>
            Jakub Jelinek    <jakub@redhat.com>

        * config/sparc/sparc.md (movtf reg/reg split): Don't generate
        SUBREGs by hand, gen the appropriate hard reg directly.
        (movtf reg/mem split): Likewise and alter_subreg on destination
        if necessary.
        (movtf mem/reg split): Similarly.
        (movdf_cc_sp64): Rename from hidden pattern.
        (movtf_cc_hq_sp64): Renamed from movtf_cc_sp64.
        (movtf_cc_sp64, following split): New pattern and splitter.
        (movdf_cc_reg_sp64): Rename from hidden pattern.
        (movtf_cc_reg_hq_sp64): Renamed from movtf_cc_reg_sp64, require
        TARGET_HARD_QUAD.
        (movtf_cc_reg_sp64, following split): New pattern and splitter.

1999-12-12  Stephen L Moshier <moshier@mediaone.net>

        * loop.c (load_mems): Don't hoist written floating point mem
        if -ffloat-store.

1999-12-12  Mark Mitchell  <mark@codesourcery.com>

        * except.h (struct eh_queue): Add `next' pointer.
        (struct eh_status): Make x_ehqueue a pointer.
        (push_ehqueue):  Declare.
        (pop_ehqueue): Likewise.
        * except.c (expand_eh_region_end): Adjust now that ehqueue is a
        pointer.
        (expand_fixup_region_end): Likewise.
        (expand_leftover_cleanups): Likewise.
        (push_ehqueue): Define.
        (pop_ehqueue): Likewise.
        (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather
        than doing it inline.
        (expand_start_all_catch):  Adjust now that ehqueue is a
        pointer.
        (mark_eh_queue): Mark all level of the queue.
        (mark_eh_status):  Adjust now that ehqueue is a
        pointer.
        (init_eh_for_function): Allocate ehqueue.
        (free_eh_status): Free it.
        * stmt.c (expand_cleanups): Save the ehqueue around the cleanup
        expansion for a fixup.

1999-12-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gthr-single.h (__gthread_active_p): Add prototype arguments.

        * libgcc2.c (__udivmoddi4): Remove unnecessary decls.
        (__dummy, __builtin_saveregs, __bb_exit_trace_func, __bb_init_prg,
        __bb_trace_func, __bb_trace_func_ret, __bb_trace_ret,
        function_ptr, getpagesize, __enable_execute_stack,
        __enable_execute_stack, __clear_insn_cache,
        __enable_execute_stack, __do_global_dtors, __do_global_ctors,
        _cleanup, _exit, __default_terminate, __terminate_func,
        __terminate, __empty, __throw, new_eh_context,
        eh_context_initialize, eh_context_static, eh_context_specific,
        get_eh_context, __get_eh_context, __get_eh_info,
        init_reg_size_table, eh_threads_initialize,
        __get_dynamic_handler_chain, __sjthrow, __sjpopnthrow,
        __unwinding_cleanup, throw_helper, __throw, __rethrow,
        __pure_virtual): Add prototype arguments.
        (__bb_exit_func): Cast a sizeof to long when comparing against one.
        Cast a signed value to unsigned long when comparing against one.
        (new_eh_context): Wrap in _GTHREADS macro.
        (__sjthrow, __sjpopnthrow): Initialize variable `cleanup' at
        declaration.
        (in_reg_window): Mark parameters with __attribute__ ((__unused__)).
        (throw_helper): Initialize variables `handler_p' and `pc_p'.

1999-12-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * combine.c (record_promoted_value): Remove unused variable
        `links2'.

        * emit-rtl.c (renumber_insns): Likewise for `old_max_uid'.

        * global.c (record_conflicts): Likewise for `j'.

        * genoutput.c (output_insn_data): Don't unnecessarily cast away
        const-ness.

1999-12-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * i386-protos.h (output_387_binary_op, output_fix_trunc,
        output_fp_compare): Constify a char*.

        * i386.c (ix86_split_to_parts, ix86_safe_length_prefix): Add
        static prototypes.
        (override_options, ix86_comp_type_attributes, print_operand,
        output_387_binary_op, output_fix_trunc, output_fp_compare):
        Constify a char*.
        (ix86_sched_reorder): Mark parameter `clock_var' with
        ATTRIBUTE_UNUSED.

        * i386.h (DEBUG_PRINT_REG): Constify a char*.

Fri Dec 10 16:12:13 1999  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * tree.def (EXPR_WITH_FILE_LOCATION): Temporarily add a third
        operand, for use in the Java front-end.

1999-12-10  Ben Collins  <bcollins@debian.org>

        * configure.in: Fix typo for "-64" in 64bit as check.
        * configure: Rebuilt.

1999-12-10  Jakub Jelinek  <jakub@redhat.com>

        * longlong.h (__sparc_v9__): Use %rDIGIT instead of %DIGIT where
        appropriate.

1999-12-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (string): With -Wtraditional, warn if ANSI string
        concatenation is utilized.

        * invoke.texi (-Wtraditional): Document it.

1999-12-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * flow.c (flow_loops_dump): Avoid ANSI string concatenation.
        Cast a ptrdiff_t to long and pass it to printf with %ld.

1999-12-10  Geoff Keating  <geoffk@cygnus.com>

        * config/m68k/m68k.h (CONDITIONAL_REGISTER_USAGE): If we have no
        68881, we have no 68881 registers at all.
        (HARD_REGNO_MODE_OK): It is always OK to put a MODE_FLOAT
        value in a 68881 register if it is available.

1999-12-10  Clinton Popetz  <cpopetz@cygnus.com>

        * config/arm/arm.md (*mulsidi3adddi, *umulsidi3adddi): New patterns
        for long long multiply-accumulate.

1999-12-10  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (insert_loop_mem): Undo last change.

1999-12-10  David S. Miller  <davem@redhat.com>

        * config/sparc/sparc.c (fp_sethi_p, fp_mov_p, fp_high_losum_p):
        New functions.
        * config/sparc/sparc-protos.h: Add them.
        * config/sparc/sparc.h: Add them to PREDICATE_CODES.
        (EXTRA_CONSTRAINT_BASE): New macro, handling Q, R, and S
        constraints which use those helpers.
        (EXTRA_CONSTRAINT): Use this new macro.
        * md.texi: Update sparc target constraints documentation.
        * config/sparc/sparc.md (clear_sf, clear_sfp, movsf_const_intreg,
        movsf_const_high, movsf_const_lo, movsf_insn): Delete.
        (movsf_insn_novis_liveg0, movsf_insn_novis_noliveg0,
        movsf_insn_vis, movsf_lo_sum, movsf_high): New patterns.
        (movsf high/lo_sum split): Rework for new patterns.
        (movsf expander): Allow storing fp_zero to memory if ! live_g0.

1999-12-09  Gavin Romig-Koch  <gavin@cetus.cygnus.com>

        * c-common.c (c_common_nodes_and_builtins):
        Create __builtin_ptrdiff_t and __builtin_size_t.

Thu Dec  9 18:05:48 1999  Jeffrey A Law  (law@cygnus.com)

        * pa/elf.h (MAX_OFILE_ALIGNMENT): Define.

Fri Dec 10 00:53:10 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regclass.c (globalize_reg): Re-instate test that allows
        fixed registers to be declared as a variable even after functions
        are defined.

Fri Dec 10 00:52:13 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (cpu attribute): Add "athlon".
        (athlon_decode): New attribute.
        (Athlon scheduling units definitions): New.
        (fcmp and shld patterns): Set athlon_decode to "vector".
        * i386.c (athlon_cost): New.
        (m_ATHLON): New.
        (x86_use_leave, x86_push_memory, x86_movx, x86_cmove, x86_deep_branch,
        x86_use_sahf): Set for Athlon.
        (x86_use_fiop): Unset for Athlon.
        (override_options): Define Athlon alignments and "athlon" name.
        (x86_adjust_cost): Penalize AGI and delayed latencies for Athlon.
        * i386.h (TARGET_ATHLON): New.
        (enum processor_type): Add PROCESSOR_ATHLON.
        (TARGET_CPU_DEFAULT_SPEC): Set to "-D__tune_athlon__"
        for CPU_DEFAULT==5
        (TARGET_CPP_CPU_SPECS): Set -D__tune_athlon__ for Athlon.

1999-12-09  Andreas Jaeger  <aj@suse.de>

        * loop.c (record_biv): Declare parameter as int.

        * config/i386/i386-protos.h: Declare long_memory_operand.

1999-12-09  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (copy_node): Do zero the TREE_CHAIN, even for an
        EXPR_WITH_FILE_LOCATION.

Thu Dec  9 11:36:24 MET 1999 Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (neg??, abs?f, one_cmpl?i): Use nonimmediate_operand
        in expander.

        * flow.c (recompute_reg_usage): Use basic block info to get loop_depth.

        * combine.c (try_combine, distribute_notes): Remove REG_N_REFS
        updating code.

1999-12-09  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/linux64.h (TARGET_DEFAULT): Make -mapp-regs
        default on linux64 again.
        * config/sparc/t-linux64: Add mno-app-regs and non-medlow code
        models for multilibing.
        * genmultilib: Accept | as alternative separator within a set in
        MULTILIB_OPTIONS.

        * config/sparc/sparc.h (PROMOTE_FOR_CALL_ONLY): Define.

        * calls.c (precompute_arguments): Make sure initial_value contains
        value pseudo which CSE expects.
        * cse.c (struct set): New entry orig_src.
        (cse_insn): Set it early on entry, use it for libcall EQUIV note
        replacement.

Wed Dec  8 22:24:15 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (count_basic_blocks): Don't add (use (const_int 0)) insns.

1999-12-08  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (insert_loop_mem): Don't hoist volatile mems out of loops.

1999-12-08  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (ultra_cmove_results_ready_p,
        ultra_fpmode_conflict_exists, ultra_flush_pipeline): Typo fix.

        * config/sparc/sparc.h (SPARC_SETHI_P): Don't look at topmost 32 bits
        if TARGET_ARCH32.

        * longlong.h: Merge in changes from glibc.
        Also don't clobber %g2 register in 32bit SPARC assembly, so that
        -mno-app-regs libgcc can be compiled.
        * libgcc2.c: Add defines so that the updated longlong.h
        can be used in libgcc2.a. Also, make sure on most architectures
        (at least on all which have optimized code in longlong.h defined
        for) {SI,W}_TYPE_SIZE is suitable for preprocessor tests.

1999-12-08  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/sparc/sol2-64.h: Same as sol2-sld-64.h, except that
        `-m EMULATION' is added to non-default LINK_ARCH_SPECs.
        * configure.in: Use sol2-64.h instead of sol2-sld-64.h if linker
        is GNU ld.
        * configure: Rebuilt.

Wed Dec  8 03:45:40 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (secondary_reload_class): For !BWX, sub-simode
        outputs require a register.

1999-12-08  Brendan Kehoe  <brendan@cygnus.com>

        * Makefile.in (FPBIT_FUNCS, DPBIT_FUNCS): Add _sf_to_usi
        _df_to_usi.  Required by some targets, so US_SOFTWARE_GOFAST calls to
        functions like dptoul will be resolved.
        (libgcc2.a): Make sure that the object files from DPBIT are named
        differently (prefix `_dp') from those that would be coming from
        FPBIT.

1999-12-08  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>,  Jakub Jelinek  <jakub@redhat.com>

        * configure.in: When target is sparc* and tm_file contains 64,
        test for 64bit support in assembler.  If not supported, remove
        sparc/t-sol2-64 from target-dependent Makefile fragments.
        (AS_SPARC64_FLAG): Define to the assembler flag for 64bit.
        (HAVE_AS_OFFSETABLE_LO10): Rework test to use these flags.
        (HAVE_AS_REGISTER_PSEUDO_OP): Use config.cache.
        * acconfig.h (AS_SPARC64_FLAG): Added.
        * configure, config.in: Rebuilt.
        * config/sparc/sol2-sld-64.h: Same as sol2.h, if without 64bit
        support.  Use AS_SPARC64_FLAG.

1999-12-07  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (hard_32bit_mode_classes): Mark registers
        suitable for holding OFmode values so that gcc works with complex
        quad long doubles.
        (hard_64bit_mode_classes): Likewise.

        * config/sparc/sparc.md (sethi_di_medlow_embmedany_pic): Fix pattern
        so that it is actually matched.
        (sethi_di_medlow): Likewise.

        * config/sparc/sparc.h (LEGITIMATE_CONSTANT_P): Consider TFmode 0.0L
        as legitimate constant if -mvis.
        * config/sparc/sparc.md (movtf): Likewise.
        (clear_sf): Use const_double_operand.
        (clear_sfp, clear_dfp, clear_tf, clear_tfp): New patterns.

        * config/sparc/sparc.c (sparc_emit_float_lib_cmp): New function.
        * config/sparc/sparc-protos.h (sparc_emit_float_lib_cmp): Prototype.
        * config/sparc/sparc.h (*_LIBCALL): Only use for _Q_*
        routines, _Qp_* cannot be handled like that now.
        (INIT_TARGET_OPTABS): Likewise.
        * config/sparc/sparc.md (cmptf): Accept soft float ARCH64.
        (seq, sne, sgt, sge, slt, sle, beq, bne, bgt, bge, blt, ble): Call
        sparc_emit_float_lib_cmp if ARCH64 and soft float.
        (extendsftf2, extenddftf2, trunctfsf2, trunctfdf2, floatsitf2,
        floatditf2, fix_trunctfsi2, fix_trunctfdi2, addtf3, subtf3, multf3,
        divtf3, sqrttf3): New expanders.
        (extendsftf2_hq, extenddftf2_hq, trunctfsf2_hq, trunctfdf2_hq,
        floatsitf2_hq, floatditf2_hq, fix_trunctfsi2_hq, fix_trunctfdi2_hq,
        addtf3_hq, subtf3_hq, multf3_hq, divtf3_hq, sqrttf3_hq): Rename from
        non-_hq patterns.

        * configure.in (sparc64-*-linux*): Use posix threads if enabled.
        * configure: Rebuilt.
        * config/sparc/linux64.h: Default to -mcpu=ultrasparc if no
        -mcpu is given and we're doing 64bit compiles.

Tue Dec  7 19:22:06 1999  Richard Henderson  <rth@cygnus.com>

        * loop.h (struct induction): Add multi_insn_incr.
        * loop.c (basic_induction_var): New multi_insn_incr argument.
        Set it if we search back through previous insns for the biv.
        (record_biv): New multi_insn_incr argument; fill in struct induction.
        (strength_reduce): Discard an iv with multiple bivs, any of
        which require multiple insns to increment.

1999-12-07  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * invoke.texi (C Dialect Options): Remove -flang-c9x, add -std
        documentation.

1999-12-06  David S. Miller  <davem@redhat.com>

        * combine.c (check_promoted_subreg): Do not conditionalize this upon
        PROMOTE_FUNCTION_RETURN.

Mon Dec  6 15:12:14 1999  Jim Wilson  <wilson@cygnus.com>

        * regmove.c (optimize_reg_copy_1): If no REG_DEAD note, check for
        and handle REG_UNUSED note on insn.

        * combine.c (force_to_mode, case LSHIFTRT): New local inner_mask.  Set
        inner_mask instead of mask.

1999-12-06  Brendan Kehoe  <brendan@cygnus.com>

        * dwarf2out.c (field_byte_offset): As with dwarfout.c, size can be
        zero if there was an error.

1999-12-06  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (return_losum_di): Fix typo in asm
        output string.

        * longlong.h: Fix clobbers in SPARC asm statements.

        * config/sparc/sparc.c (input_operand): Allow HImode and QImode
        valid sethi operations when TARGET_ARCH64.

        * calls.c (save_fixed_argument_area): If save_mode is BLKmode,
        always use move_by_pieces to avoid infinite recursion.
        (restore_fixed_argument_area): Likewise.

        * combine.c (check_promoted_subreg, record_promoted_value): New
        functions.
        (combine_instructions): Use them to retain nonzero and sign bit
        information after SUBREGs are eliminated by optimizations in
        this pass if PROMOTE_FUNCTION_RETURN.

        * config/sparc/sparc.h (ASM_DECLARE_REGISTER_GLOBAL): Document
        .register declaration. Don't use variables with __ prefixes.

Mon Dec  6 12:24:52 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * fold-const.c (optimize_bit_field_compare): Only use one mode
        for both RHS and LHS in non-constant case.

1999-12-06  Nathan Sidwell  <nathan@acm.org>

        * frame.c (start_fde_sort): Only allocate erratic array, if
        linear one was allocated. Return allocated flag.
        (fde_insert): Only insert, if there's a valid array.
        (fde_end_sort): Split, sort and merge if linear and erratic
        arrays exist, else just sort linear one.
        (search_fdes): New function. Linear search through original fde
        structure.
        (frame_init): Permit multiple initializations. Cope with
        memory shortages.
        (find_fde): Fallback on linear search, if failed to sort array.
        (__deregister_frame_info): Only free sorted array, if we
        allocated it.

1999-12-06  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.h (MUST_PASS_IN_STACK): New macro.

1999-12-05  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (sparc64_initialize_trampoline): Use gen_flushdi.

1999-12-05  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (special_function_p): Declare.
        * calls.c (special_function_p): Make it global.  Don't take `name'
        as a parameter.  Fix typo in 1999-11-28 change.
        (expand_cal): Adjust.

1999-12-04  Mark Mitchell  <mark@codesourcery.com>

        * tree.def (EXPR_WITH_FILE_LOCATION): Fix comment formatting.
        * tree.h (EXPR_WFL_FILENAME): Define in terms of
        EXPR_WFL_FILENAME_NODE.
        (EXPR_WFL_FILENAME_NODE): Use the second operand slot rather than
        the TREE_CHAIN.
        * print-tree.c (print_note): Print TREE_PRIVATE and
        TREE_PROTECTED.

        * dwarf2out.c (add_abstract_origin_attribute): Don't abort when
        the original die cannot be found.

        * varray.h (varray_head_tag): Add elements_used.
        (VARRAY_PUSH): New macro.
        (VARRAY_POP): Likewise.
        (VARRAY_TOP): Likewise.
        Add variants of VARRAY_PUSH and VARRAY_POP for all varray element
        types.
        * varray.c (varray_init): Initialize elements_used.
        * Makefile.in (BASIC_BLOCK_H): Add varray.h.
        (INTEGRATE_H): New variable.
        (integrate.o): Depend on INTEGRATE_H.
        (unroll.o): Likewise.

        * function.h (insert_block_after_note): Declare.
        * function.c (insert_block_after_note): Split out from ...
        (retrofit_block): ... here.

        * stmt.c (expand_fixup): Fix typo in comment.

Sat Dec  4 14:13:38 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * regmove.c (copy_src_to_dest): Remove loop_depth parameter.
        (optimize_reg_copy_1): Remove REG_N_REFS updating code.
        (optimize_reg_copy_2, copy_src_to_dest, fixup_match_2): Likewise.
        (regmove_optimize, fixup_match_1): Likewise.

1999-12-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * flow.c (flow_loops_dump): Add missing argument when calling
        flow_loop_nested_p.

1999-12-04  Geoffrey Keating  <geoffk@cygnus.com>
            Greg McGary  <gkm@gnu.org>

        * c-common.c (enum attrs): Add A_NO_LIMIT_STACK.
        (init_attributes): Add A_NO_LIMIT_STACK.
        (decl_attributes): Handle A_NO_LIMIT_STACK.
        * c-decl.c (duplicate_decls): Handle DECL_NO_LIMIT_STACK.
        * explow.c (allocate_dynamic_stack_space) [!HAVE_allocate_stack]:
        Handle stack bounds checking.
        * flags.h (flag_stack_check): Use the word 'probe' rather than
        'check', because the flag doesn't actually cause any checking to
        be done.
        * function.c (expand_function_start): Set
        current_function_limit_stack.
        * function.h (struct function): Add limit_stack.
        (current_function_limit_stack): Define.
        * invoke.texi (Code Gen Options): Document new options.
        * rtl.h: Declare stack_limit_rtx.
        * toplev.c (stack_limit_rtx): New variable.
        (decode_f_option): Handle new options -fstack-limit-register=REG,
        -fstack-limit-symbol=IDENT, -fno-stack-limit.
        (main): Add stack_limit_rtx as GC root.
        * tree.h (DECL_NO_LIMIT_STACK): New macro.
        (struct tree_decl): New member no_limit_stack.

        * config/rs6000/rs6000.c (rs6000_allocate_stack_space): Handle
        stack_limit_rtx.
        * config/rs6000/rs6000.md (allocate_stack): Handle stack_limit_rtx.
        (conditional_trap+1): Get new mnemonic correct.
        (conditional_trap+2): New pattern for DImode traps.

        * config/m68k/m68k.c (output_function_prologue): Handle
        stack_limit_rtx.
        * config/m68k/m68k.md (trap): New insn.
        (conditional_trap): New insn.
        * md.texi (Standard Names): Document `trap' and
        `conditional_trap'.
        * optabs.c (gen_cond_trap): Use start_sequence()/end_sequence()
        so a cc0 setter doesn't get emitted at some random place in the
        function.

        * config/i960/i960.md (trap): New insn.
        (conditional_trap): New expander.
        (conditional_trap+1, conditional_trap+2): New insns for signed
        and unsigned cases.
        * config/i960/i960.c (i960_function_prologue): Use
        STARTING_FRAME_OFFSET.  Handle stack_limit_rtx.

Thu Dec  2 21:22:45 1999  Greg McGary  <gkm@gnu.org>
                          Geoffrey Keating  <geoffk@cygnus.com>

        * flags.h (warn_padded, warn_packed): Add global var decls.
        * toplev.c (warn_padded, warn_packed): Add global var defns.
        (W_options): Add warnings `-Wpacked' and `-Wpadded'.
        * stor-layout.c (layout_record): Add local variable `type'
        to hold often-used TREE_TYPE (field).  Add local variable
        `unpacked_align' to hold alignment that would be in force
        if no `packed' attribute were present.  Warn if `packed' attribute
        is unnecessary, or even harmful.  Warn when gcc inserts padding
        to satisfy alignment requirements of members.  Use NULL_TREE
        when checking whether var_size is set.
        * invoke.texi: Document new flags.

1999-12-03  Nathan Sidwell  <nathan@acm.org>

        * frame.c (fde_split): Reimplement to avoid variable sized array.

Thu Dec  2 18:59:48 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * combine.c (try_combine): Before fixing up LOG_LINKS for the
        i3_subst_into_i2 case, check that GET_CODE (PATTERN (i2)) == PARALLEL.

1999-12-02  Gavin Romig-Koch  <gavin@cygnus.com>

        * invoke.texi: Document the mips option -mno-crt0

1999-12-02  Mike Karr  <mkarr@mathworks.com>

        * cccp.c (argdata): Added free_ptr member.
        (macroexpand): Initialize free_ptr of each argument. When an
        argument's buffers are freed, if the argument's free_ptr corresponds
        to a buffer on the input stack, then return the free_ptr to that stack
        frame, otherwise, free it.
        (macarg): If an argument begins and ends on the same input stack level,
        then transfer the free_ptr of that buffer to the argument in case
        the stack is popped during the processing of a subsequent argument.

1999-12-02  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (note_reg_stored): New function.
        (struct note_reg_stored_arg): New structure.
        (try_copy_prop): Change to be more conservative; only replace within
        one extended basic block and stop replacing if a store to the
        replacement reg is seen.

1999-12-02  Nick Clifton  <nickc@cygnus.com>

        * config/fp-bit.c: Initialise all fields of the NAN
        constants.

        * c-lex.c (check_newline): Pass pragma_getc and pragma_ungetc
        to HANDLE_PRAGMA.

Wed Dec  1 18:16:38 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (extend?f?f2): Force the input into a register, not
        the output.

1999-12-01  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.md (movsf_const_intreg): Add constraints for
        regclass' sake.
        (movdf_const_intreg_sp32): Likewise. Prefer the memory load
        alternative because setting up 64bit constant is usually costly,
        especially when reload is in progress or completed.
        (movdf_const_intreg_sp64): Likewise.
        (movdf_const_intreg split): Fix building up constants when
        HOST_BITS_PER_WIDE_INT is 64 yet long is 32bit.

Wed Dec  1 16:51:22 1999  Jeffrey A Law  (law@cygnus.com)

        * combine.c (if_then_else_cond): Use const_true_rtx instead of
        const1_rtx for return values in EQ/NE comparison against (const_int 0)
        case.

        * mn10300.c (REG_SAVE_BYTES): Allocate space for AM33 registers.
        (asm_file_start): Emit .am33 into assembly file when compiling for
        the AM33.
        (print_operand_address): Handle POST_INC addresses.
        (can_use_return_insn, initial_offset): Check AM33 registers too.
        (expand_prologue): Check & save AM33 registers too.
        (expand_epilogue): Similarly.
        (secondary_reload_class): Handle AM33 specific secondary reloads.
        (output_tst): Emit efficient code for the AM33 too.
        * mn10300.h (CPP_SPEC, TARGET_AM33): Define.
        (TARGET_SWITCHES): Add -mam33 switch.
        (FIRST_PSEUDO_REGISTER): Handle new AM33 registers.
        (FIXED_REGISTERS, CALL_USED_REGISTERS): Likewise.
        (REG_ALLOC_ORDER, CONDITIONAL_REGISTER_USAGE): Likewise.
        (HARD_REGNO_MODE_OK, MODES_TIEABLE_P): Likewise.
        (enum reg_class, REG_CLASS_NAMES): Likewise.
        (REG_CLASS_CONTENTS, REGNO_REG_CLASS): Likewise.
        (INDEX_REG_CLASS, REG_CLASS_FROM_LETTER): Likewise.
        (REGNO_OK_FOR_INDEX_P, PREFERRED_RELOAD_CLASS): Likewise.
        (PREFERRED_OUTPUT_RELOAD_CLASS, LIMIT_RELOAD_CLASS): Likewise.
        (REGISTER_MOVE_COST, REGISTER_NAMES): Likewise.
        (HAVE_POST_INCREMENT): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Allow POST_INC addresses for the AM33.
        (GO_IF_MODE_DEPENDENT_ADDRESS): POST_INC is a mode dependent address.
        * mn10300.md (movqi, movhi, addsi, subsi): Add AM33 variants.
        (mulsi, andsi, iorsi, xorsi, notsi): Likewise.
        (ashiftsi, lshiftrtsi, ashiftrtsi): Likewise.
        (zero_extend to SI from QI/HI): Likewise.
        (sign_extend to SI from QI/HI): Likewise.
        (mulsidi3, umulsidi3): New patterns for the AM33.
        (tstsi with zero extension from QI/HI): Add AM33 variants.
        (movsi, movsf, movdi, movdf): Generate efficient code for the AM33 too.
        (return_internal_regs, store_movm): Handle new AM33 registers.
        * t-mn10300 (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Define.
        (LIBGCC, INSTALL_LIBGCC): Likewise.
        * invoke.texi: Document new flags.

Fri Nov 26 10:59:12 CET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (addsi3_cc): Add "binary_operator_ok" to the condition.
        (addsi3_carry): Likewise.
        (sbbsi3_cc): Add "binary_operator_ok" to the condition.
        (sbbsi3_carry): Likewise.
        (mulsi3): Rewrite to expander, ensure that only one operand is memory.
        (mulhi3): Likewise.
        (test?i_1): Ensure that only one operand is memory.
        (conditional move patterns): likewise.
        (shift and rotate patterns): Rewrite to expander, add
        "binary_operator_ok" to the condition.

        * i386.md (QImode patterns): Remove '*' before the 'r' constraints.
        * i386.h (procesor_costs): Add movzbl_load field.
        (HARD_REGNO_MODE_OK): Accept QImode on non PARTIAL_REGISTER_STALL in
        non-Q registers, accept DImode registers anywhere.
        (Q_CLASS_P): New.
        (MEMORY_MOVE_COST): Calculate QImode moves correctly.
        * i386.c (*_cost): Set value for movxbl_load field.

        * (addsi): New add to lea splitter.
        (ashlsi): Likewise.
        (lea to add/shift peep2): New.

1999-12-01  Mark Salter <msalter@cygnus.com>

        * config/mips/elf.h (STARTFILE_SPEC): Add no-crt0.
        * config/mips/elf64.h (STARTFILE_SPEC): Add no-crt0.
        * config/mips/mips.h (TARGET_SWITCHES): Add no-crt0.

Tue Nov 30 15:20:52 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.c (ix86_expand_move): Never add clobbers to move patterns.
        * i386.md (movsi_xor): New.
        (movsi_or): New.
        (movsi_1, movhi_1, movqi_1): Remove.
        (movsi_2): Rename to movsi_1.
        (movhi_2): Rename to movhi_1.
        (movqi_2): Rename to movqi_1.
        (movdi_1): Remove; remove splitter.
        (movdi_2): Rename to movdi_1.
        (divmodsi4 splitter): Do not emit clobbers for move patterns.
        (long move peep2): Do not create QI or HI mode mov0s
        (mov -1,reg -> or peep2s): Enable again, rewrite to single peephole.

        * i386.md (zero_extend?i?i2): Rewrite to expanders; new patterns,
        rewrite splitters.

        * i386.md (neg?f2_if): Split "r" and "f" to separate alternatives.
        (abs?f2_if): Likewise.

1999-11-30  Alex Samuel  <samuel@codesourcery.com>

        * ggc.h (ggc_test_and_set_mark): New macro.
        (ggc_mark_rtx): Use ggc_test_and_set_mark.
        (ggc_mark_tree): Likewise.
        (ggc_mark_rtvec): Likewise.
        * ggc-common.c (ggc_mark_rtx_children): Reduce recursion.

1999-11-30  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (scope_die_for): Only handle types.  Only search for
        containing types.
        (decl_scope_table): Just an array of trees now.
        (push_decl_scope): Simplify.
        (dwarf2out_init): Adjust.
        (local_scope_p): New fn.
        (gen_inlined_enumeration_type_die): Don't call scope_die_for.
        (gen_inlined_union_type_die, gen_inlined_structure_type_die): Likewise.
        (gen_typedef_die): Likewise.
        (gen_lexical_block_die): Don't call push/pop_decl_scope.
        (gen_inlined_subroutine_die): Likewise.
        (gen_abstract_function): Set current_function_decl temporarily.
        (gen_subprogram_die): Don't check DECL_ABSTRACT to set declaration.
        Handle block extern declarations.  Don't call push/pop_decl_scope.
        (gen_decl_die): Fix logic for block externs.

1999-11-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c (special_function_p): Remove `realloc' and add `strdup'
        to the list of functions which have attribute malloc by default.

1999-11-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-lex.c (yylex): With -Wtraditional, when the ANSI type of an
        integer constant does not match the traditional type, limit the
        warnings to cases where the base of the type is ten.

        * invoke.texi (-Wtraditional): Document it.

Tue Nov 30 15:18:35 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * combine.c (try_combine): Only pass SET or CLOBBER to SET_DEST
        * rs6000.md: Only access a CONST_INT with INTVAL

Tue Nov 30 14:21:00 1999  Richard Henderson  <rth@cygnus.com>

        * lcm.c (compute_laterin): Cast bb->aux to size_t not int.
        (compute_nearerout): Likewise.
        * ggc-page.c (ggc_page_print_statistics): Explicitly cast
        size_t to unsigned long for formatting.

1999-11-30  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.h (FIXED_REGISTERS, CONDITIONAL_REGISTER_USAGE):
        Allow the user to override call-used/fixed state of %g2-5
        registers from the command line (with the exception of %g4 for
        embedded model).
        (REG_LEAF_ALLOC_ORDER): Move %g1 and %g4-7 registers to front, so that
        there is a higher chance of having a leaf function.
        (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Provide separate macros
        for ARCH64 which has %ccr register.
        * config/sparc/sparc.md (return_losum_si, return_losum_di): New
        patterns.
        * config/sparc/sparc.c (eligible_for_epilogue_delay): For the return
        insn accept into delay slot any insn which does not use %[ol]
        registers.  Accept some LO_SUM and shift left by 1 for the normal
        restore case.
        (output_function_epilogue): Likewise.
        (epilogue_renumber): Added argument which inhibits any renumbering
        and just tests if the rtx does not use any %[ol] registers.
        (output_return): Reflect above change.

1999-11-30  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (sparc_va_arg): Fix sparc64 va_arg
        aggregate passing for sizes <= 16 bytes.

1999-11-30  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (FIXED_REGNO_P): Delete tests for OVERLAPPING_REGNO_P.
        * global.c (global_alloc): Delete [OVERLAPPING_REGNO_P] code.
        * reload.c (find_dummy_reload): Likewise.
        (find_equiv_reg): Likewise; also for INSN_CLOBBERS_REGNO_P.
        * reload1.c (reload_as_needed): Likewise.
        * stupid.c (stupid_find_reg): Likewise.
        * tm.texi (Obsolete Register Macros): Delete section.
        * gmicro.h: Remove all traces of the two macros.
        * i386.h: Likewise.
        * m88k.h: Likewise.
        * mips.h: Likewise.

1999-11-30  Brendan Kehoe  <brendan@cygnus.com>

        * sparc.h (MASK_FASTER_STRUCTS, TARGET_FASTER_STRUCTS): Define.
        (TARGET_SWITCHES): Add -mfaster-structs/-mno-faster-structs flags.
        (ROUND_TYPE_ALIGN): Use better value if -mfaster-structs.
        * sparc.md (sparclite86x_branch, sparclite86x_shift): New function
        units for the sparclite86x chip.
        (flush): Revert October 14th change; add SImode specifically.
        (flushdi): Copy of flush, but DImode, to avoid genrecog warnings.
        * invoke.texi: Document it.

Tue Nov 30 14:58:14 1999  Nick Clifton  <nickc@cygnus.com>

        * config/mn10200/mn10200.h (PREDICATE_CODES): Add
        psimode_truncation_operand.

        * config/mn10200/mn10200.c (psimode_truncation_operand): New
        function.  Return true if the operand is either a MEM valid
        for a PSImode address or not a MEM at all.

        * config/mn10200/mn10200.md (truncsipsi2): Use
        psimode_truncation_operand.

1999-11-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * flow.c (flow_nodes_print, flow_loops_cfg_dump): New functions.
        (flow_loop_nested_p, flow_loops_dump, flow_loops_free): Likewise.
        (flow_loop_exits_find, flow_loop_nodes_find): Likewise.
        (flow_depth_first_order_compute, flow_loop_pre_header_find): Likewise.
        (flow_loop_tree_node_add, flow_loops_tree_build): Likewise.
        (flow_loop_level_compute, low_loops_level_compute): Likewise.
        (flow_loops_find, flow_loop_outside_edge_p): Likewise.
        * basic-block.h: Protect from multiple inclusion.
        (flow_loops_find, flow_loops_free, flow_loop_dump): Add protoypes.
        (struct loops, struct loop): Define structures.
        * sbitmap.c (sbitmap_a_subset_b_p): New function.
        * sbitmap.h: Protect from multiple inclusion.
        (sbitmap_a_subset_b_p): Add prototype.
        * Makefile.in (LOOP_H): New macro.
        (stmt.o, integrate.o, loop.o, unroll.o): Replace loop.h with LOOP_H.

Tue Nov 30 01:34:47 1999  Philippe De Muyter  <phdm@macqel.be>

        * cppinit.c (CAT): The argument list of this macro may not contain
        spaces !

1999-11-29  David S. Miller  <davem@redhat.com>

        Move quantity tables and register equivalence chains into
        per-qty and per-register structure arrays respectively.
        * cse.c (qty_first_reg, qty_last_reg, qty_mode, qty_const,
        qty_const_insn, qty_comparison_code, qty_comparison_const,
        qty_comparison_qty): Delete, replace with...
        (qty_table): this structure table.
        (reg_next_eqv, reg_prev_eqv): Delete, replace with...
        (reg_eqv_table): this structure table.
        (make_new_qty): Add argument MODE.  Caller updated.
        Update to use qty_table and reg_eqv_table.
        (make_regs_eqv, delete_reg_equiv, insert_regs,
        insert, exp_equiv_p, cse_rtx_varies_p, canon_reg,
        fold_rtx, equiv_constant, record_jump_cond, cse_insn,
        cse_process_notes, cse_main, cse_basic_block): Likewise.

Mon Nov 29 16:56:42 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * fold-const.c (extract_muldiv, case {MIN,MAX}_EXPR): Reverse
        operation if C is negative.
        (extract_muldiv, case SAVE_EXPR): Supresss if arg has side effects.
        (extract_muldiv, case {PLUS,MINUS}_EXPR): Don't apply distributive
        law for some divisions if constant is negative and change other
        divisions to the opposite rounding.

        * expr.c (store_constructor_field): If bit position is not multiple
        of alignment of TARGET's mode, use BLKmode.

        * expr.c (expand_expr_unaligned): Add more code from full case
        that is needed when OP0 is in a register.

Mon Nov 29 18:09:39 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * dwarfout.c (field_byte_offset): Size can be zero if there was
        an error.

1999-11-29  Bernd Schmidt  <bernds@cygnus.co.uk>

        * fold-const.c (split_tree): Delete unused vars ORIG_IN and TYPE.
        (associate_trees): Delete unused var TEM.
        (extract_muldiv): Delete unused var CANCEL_P.

        * fold-const.c [TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT]
        (target_isinf, target_isnan, target_negative): Add return types to
        function definitions.

1999-11-29  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/fixincl.c(process): don't skip GLIBC files any more.
        * fixinc/hackshell.tpl: ditto
        * fixinc/fixtests.c(double_slash_test): more C++ header testing
        * fixinc/inclhack.def(AAB_fd_zero_glibc*): corrected spelling of mach

1999-11-29  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload.c (push_reload): When looking for a register to put into
        reg_rtx, make sure all hard regs in a multi-reg register are in the
        right class and nonfixed.

        * haifa-sched.c (reg_last_uses, reg_last_sets, reg_last_clobbers,
        pending_read_insns, pending_write_insns, pending_read_mems,
        pending_write_mems, pending_list_length, last_pending_memory_flush,
        last_function_call, sched_before_next_call): Move static variables
        into a structure.
        (bb_ prefixed versions): Replace with single array bb_deps.
        (struct deps): New structure.
        (add_insn_mem_dependence, flush_pending_lists, sched_analyze_1,
        sched_analyze_2, sched_analyze_insn, sched_analyze): Accept new
        argument of type "struct deps *"; use that instead of global
        variables.  All callers changed.
        (init_rgn_data_dependencies): Delete function.
        (init_rtx_vector): Delete function.
        (init_deps): New function.

        (free_pending_lists): Simplify, we always use the bb_deps array even
        if only one basic block.
        (compute_block_backward_dependences): Likewise.
        (schedule_region): Likewise.

        (propagate_deps): New function, broken out of
        compute_block_backward_dependences.
        (compute_block_backward_dependences): Use it.

        * alpha.md: Delete useless patterns that tried to work around
        register elimination problems.

        * unroll.c (loop_iterations): Don't abort if iteration variable
        was made by loop.

        From Joern Rennecke:
        * reload1.c (reloads_conflict): Reverse test comparing operand
        numbers when testing for conflict between output/outaddr reloads.

1999-11-29  David S. Miller  <davem@redhat.com>

        * config/sparc/sparc.c (init_cumulative_args): Fix type of third
        arg.
        * config/sparc/sparc-protos.h: Update proto, move into RTX_CODE.

1999-11-28  Robert Lipe  <robertl@cygnus.com>

        * i386/sco5.h (FINI_SECTION_ASM_OP_COFF): Move destructor fn
        table from .fini into .dtor.

1999-11-28  Anthony Green  <green@cygnus.com>

        * tree.h (struct tree_decl): Add malloc_flag.
        (DECL_IS_MALLOC): Define.
        * c-common.c (attrs): Add A_MALLOC attribute.
        (init_attributes): Add this attribute to the table.
        (decl_attributes): Handle malloc attribute.
        * calls.c (special_function_p): Check for the malloc attribute.
        * extend.texi (Function Attributes): Document malloc attribute.

Sun Nov 28 13:21:00 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (reload shift-add patterns): Remove.

1999-11-28 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * reorg.c (dbr_schedule) Print more statistics. Corrected
        problem when printing info when 3 delay slots are filled.

1999-11-28  Jakub Jelinek  <jakub@redhat.com>

        * combine.c (setup_incoming_promotions): Pass an outgoing
        regno to FUNCTION_ARG_REGNO_P which it expects.

1999-11-28  Andreas Jaeger  <aj@suse.de>

        * mips/linux.h (CPP_PREDEFINES): Undefine before redefining.

Sun Nov 28 00:48:15 1999  Philippe De Muyter  <phdm@macqel.be>

        * cccp.c (do_include): Avoid initialization of automatic variable.

        * integrate.c (mark_stores): Function definition made void, to match
        previous declaration.
        * regclass.c (dump_regclass): Ditto.
        * Makefile.in (WARN_CFLAGS): Macro augmented by `-Wtraditional'.

Sat Nov 27 08:38:26 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor): Use EXACT_DIV_EXPR when dividend is
        known to be multiple of divisor.

        * expr.c (store_constructor): Don't clobber TARGET if CLEARED.

        * combine.c (try_combine): Add code to try to merge a set of a
        two-word pseudo to a constant with a setting of one of those words
        to a constant.

        * fold-const.c (negate_expr, associate_trees, extract_muldiv): New.
        (split_tree): Completely rework to make more general.
        (make_range, fold): Call negate_expr.
        (fold, case NEGATE_EXPR): Simplify -(a-b) is -ffast-math.
        (fold, associate): Call new split_tree and associate_trees.
        (fold, case MULT_EXPR, case *_{DIV,MOD}_EXPR): Call extract_muldiv.

1999-11-26  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (try_copy_prop): Avoid GNU C extension.

1999-11-25  Mark Mitchell  <mark@codesourcery.com>

        * except.c (init_eh_for_function): Still zero eh_return_context,
        eh_return_stack_adjust, and eh_return_handler.

        * except.h (eh_status): Adjust documentation for x_protect_list.
        (begin_protect_partials): New function.
        * except.c (enqueue_eh_entry): Fix formatting.
        (get_first_handler): Add consistency check.
        (add_partial_entry): Adjust usage of protect_list.
        (emit_cleanup_handler): Save and restore ehqueue.
        (expand_start_all_catch): Add comment.
        (begin_protect_partials): New function.
        (end_protect_partials): Adjust usage of protect_list.
        (init_eh_for_function): Use xcalloc.

1999-11-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (check_format_info): Don't call a variadic function
        with a non-literal format string.

        * c-decl.c (grokdeclarator, start_struct, finish_struct): Likewise.

        * c-typeck.c (build_component_ref, build_unary_op, lvalue_or_else,
        pedantic_lvalue_warning, error_init, pedwarn_init, warning_init):
        Likewise.

        * cccp.c (check_macro_name, do_xifdef, vwarning_with_line):
        Likewise.

        * collect2.c (collect_wait): Likewise.

        * dbxout.c (dbxout_type): Likewise.

        * gcc.c (do_spec_1): Likewise.

        * genemit.c (gen_insn, gen_expand): Likewise.

        * genrecog.c (write_switch, write_subroutine): Likewise.

        * mips-tfile.c (catch_signal, botch): Likewise.

        * print-rtl.c (print_rtx): Likewise.

        * toplev.c (default_print_error_function, report_error_function,
        _fatal_insn): Likewise.

1999-11-25  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (unsave_expr_now): Handle NULL_TREE as input.

Wed Nov 24 17:08:09 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * reg-stack.c (subst_stack_regs_pat): Swap operands in commutative
        operations when needed.
        * i386.md (fop_?f_comm): New.
        (fop_?f_1): Do not accept commutative operands.

1999-11-25  Andreas Jaeger  <aj@suse.de>

        * config/mips/mips.md (casesi_internal): Add missing brace.

1999-11-25  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (pend_type, output_pending_types_for_scope): Lose.
        (splice_child_die): Handle moving a child DIE from the declaration
        DIE of a class to its specification.
        (gen_struct_or_union_type_die): Use 'complete' consistently.
        (gen_decl_die): Generate the virtual context DIE first.
        Use decl_ultimate_origin instead of DECL_ABSTRACT_ORIGIN.

1999-11-24  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.md (call_value_multiple_interanal1): New.

1999-11-24  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (free_AT, free_die): New fns.
        (remove_children): Call them.
        (output_line_info): Disable removal of duplicate notes.

        Generate minimal debug info for types with TYPE_DECL_SUPPRESS_INFO set.
        * dwarf2out.c (gen_struct_or_union_type_die): TYPE_DECL_SUPPRESS_INFO
        means pretend the type isn't defined.
        Don't defer emitting types.
        (gen_type_die_for_member): New fn.
        (gen_decl_die): Call it.
        (splice_child_die): New fn.
        (gen_member_die): Call it rather than generate duplicate dies.

        Defer emitting information for the abstract instance of an inline
        until we either inline it or emit an out-of-line copy.
        * dwarf2out.c (decl_ultimate_origin): Ignore DECL_ABSTRACT_ORIGIN
        from output_inline_function if DECL_ABSTRACT is also set.
        (block_ultimate_origin): Likewise.
        (gen_abstract_function): New fn.
        (gen_decl_die, gen_inlined_subroutine_die): Call it.
        (gen_subprogram_die):  An abstract instance is not a declaration
        just because it doesn't match current_function_decl.  Don't abort
        because DECL_DEFER_OUTPUT isn't set.  Do abort if a declaration
        has an abstract origin.
        * toplev.c (rest_of_compilation): Don't emit dwarf2 info for the
        abstract instance here.

Wed Nov 24 18:39:18 1999  Andrew Haley  <aph@cygnus.com>

        * config/sh/sh.h (SECONDARY_OUTPUT_RELOAD_CLASS): Add the case
        where we need to reload fpul from a system register.

1999-11-24  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h (CPP_PREDEFINES): Added.
        (LINK_SPEC): Remove -Y since this is only needed on sparc.

1999-11-24  Andreas Jaeger  <aj@suse.de>

        * config/mips/linux.h (TARGET_VERSION): Added.
        (HANDLE_SYSV_PRAGMA): Added.
        (DEFAULT_VTABLE_THUNKS): Added.

Wed Nov 24 14:12:15 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * local-alloc.c (qty): New structure and static variable.
        (qty_phys_reg): Remove, all references changed to qty.
        (qty_n_refs): Likewise.
        (qty_min_class): Likewise.
        (qty_birth): Likewise.
        (qty_death): Likewise.
        (qty_size): Likewise.
        (qty_mode): Likewise.
        (qty_n_calls_crossed): Likewise.
        (qty_alternate_class): Likewise.
        (qty_changes_size): Likewise.
        (qty_first_reg): Likewise.
        (alloc_qty): Rename variable QTY to QTYNO.
        (finf_free_reg): Likewise.
        (local_alloc): Allocate qty, do not allocate the removed variables.

Wed Nov 24 17:26:05 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * config/mips/mips.h (ASM_SPEC): Don't pass -G to the assembler
        when -membedded-pic is passed.

        * config/mips/mips.md (casesi): Handle 64-bit case too.
        (casesi_internal_di): New insn.

        * config/mips/mips.c (embedded_pic_offset): Always make the
        embedded-pic subtractions relative to the name of the current
        function by use of the magic string "..CURRENT_FUNCTION".
        * config/mips/mips.h (ASM_OUTPUT_LABELREF): Make the magic happen.

1999-11-24  Geoffrey Keating  <geoffk@cygnus.com>

        * config/mips/mips.md (div_trap_normal): Don't ask for the REGNO
        of (const_int 0), when what we really care about is
        whether it's a zero constant anyway.
        (div_trap_mips16): Likewise.

1999-11-23  Mark Mitchell  <mark@codesourcery.com>

        * loop.c (loop_optimize): Always find_loop_tree_blocks and
        unroll_block_trees when generating debuggable code.

        * tree.h (unsave_expr_1): New function.
        (lang_unsave): New variable.
        (get_callee_fndecl): New function.
        * tree.c (unsave_expr_now_r): New function.
        (lang_unsave): Define.
        (unsave_expr_1): Likewise.
        (unsave_expr_now_r): Split out from unsave_expr_now.
        (unsave_expr_now): Call lang_unsave if it is non-NULL.  Otherwise,
        call unsave_expr_now_r.
        (get_callee_fndecl): Define.

        * Makefile.in (gencheck): Don't depend on lang_tree_files.
        (gencheck.o): Do depend on lang_tree_files.

        * integrate.h (copy_decl_for_inlining): New declaration.
        * integrate.c (copy_and_set_decl_abstract_origin): Remove.
        (copy_decl_for_inlining): New function.
        (integrate_parm_decls): Use it.
        (integrate_decl_tree): Likewise.

1999-11-23  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (ISA_HAS_FP4,ISA_HAS_CONDMOVE,ISA_HAS_8CC): Split
        the second two from the first.
        (CONDITIONAL_REGISTER_USAGE): Use ISA_HAS_8CC rather than ISA_HAS_FP4.
        * config/mips/mips.md (movcc,reload_incc,reload_outcc,
        conditional move): Use ISA_HAS_CONDMOVE or ISA_HAS_8CC rather than
        ISA_HAS_FP4.
        * config/mips/mips.c (mips_move_1word,gen_conditional_branch,
        override_options): Use ISA_HAS_CONDMOVE or ISA_HAS_8CC rather than
        ISA_HAS_FP4.

Tue Nov 23 11:15:04 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (call_internal_symref, call_value_internal_symref): No mode
        needed on the address operand.
        * pa.c (call_operand_address): Check for the correct mode.

1999-11-23  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c: Include "basic-block.h".
        (try_copy_prop, replace_loop_reg): New functions.
        (load_mems): Detect registers that just hold copies of the hoisted
        mem, and call try_copy_prop to eliminate them.
        * Makefile.in (loop.o): Update dependencies.

Tue Nov 23 01:03:29 1999  Hans-Peter Nilsson  <hp@axis.com>

        * Makefile.in (gencheck.o): Depend on gencheck.h.
        (insn-emit.o): Depend on flags.h, hard-reg-set.h and resource.h.
        (insn-peep.o): Depend on except.h and function.h.
        (insn-attrtab.o): Depend on RECOG_H.
        (insn-output.o): Depend on toplev.h and flags.h.
        (gengenrtl.o): Depend on real.h.
        (gen-protos.o): Depend on cpplib.h and cpphash.h.
        Unify all dependencies to be on RECOG_H rather than recog.h.

Tue Nov 23 00:57:10 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        From Casper H.S. Dik on comp.unix.solaris, 23 Oct 1998:
        * configure.in: Try building a bi-arch 32/64-bit compiler on
        sparc-*-solaris2.7 and higher.
        * configure: Rebuild.

Mon Nov 22 23:09:44 1999  David O'Brien  <obrien@FreeBSD.org>

        * config/freebsd.h: New, FreeBSD architecture independent file.
        * config/i386/freebsd-elf.h: removed FreeBSD architecturally
        independent pieces.
        * config/i386/freebsd.h: include i386/perform.h via tm.h rather than
        directly by i386/freebsd.h.
        * configure.in (*-*-freebsdelf): Include new FreeBSD architecturally
        independent configuration file.
        (*-*-freebsdelf): Include i386/perform.h via tm.h rather than
        directly by i386/freebsd.h.
        * configure: Rebuilt.

        * xm-i386.h: Define `__i386__' if not defined, rather than `i386'
        which is in the user's namespace.
        * libgcc2.c: Look for the ANSI-C approved `__i386__' symbol, vs.
        `i386' which is not in our namespace.

Mon Nov 22 22:58:01 1999  "R. Kelley Cook" <KelleyCook@attglobal.net>

        * invoke.texi (ARM Options): Add in -mno-alignment-traps

1999-11-22  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (die_struct): Remove die_attr_last and die_child_last.
        (add_dwarf_attr, add_child_die): Just push onto the front.
        (reverse_die_lists): New fn.
        (add_sibling_attributes): Use it.
        (push_decl_scope): Reorganize.
        (add_name_and_src_coords_attributes): Don't set file and line for
        an artificial decl.
        (gen_subprogram_die): An artificial function doesn't need to match
        file and line.
        (gen_compile_unit_die): Return the generated die.  Only add
        AT_comp_dir if the filename is relative.
        (remove_AT): Simplify loop.  Also free string values.
        (output_die): A DIE ref can't be null.
        (output_value_format, value_format): Take a dw_attr_ref.
        (dwarf_last_decl, is_extern_subr_die, sibling_offset): Remove.
        (AT_class, AT_flag, AT_int, AT_unsigned, AT_string, AT_ref, AT_loc,
        AT_addr, AT_lbl): New fns.
        (various): Use them.
        (various): Constify.

Mon Nov 22 23:53:50 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * combine.c (combine_simplify_rtx): When handling a SUBREG,
        take SUBREG_WORD into account.
        (if_then_else_cond): Likewise.

1999-11-22  Jason Merrill  <jason@casey.cygnus.com>

        * gmon.c, i386/gmon-sol2.c, sparc/gmon-sol2.c: Remove advertising
        clause from BSD license, pursuant with

          ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

1999-11-22  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (load_mems): Reformat slightly.
        * basic-block.h (regset_head): New typedef.
        (INIT_REG_SET): New macro.

1999-11-22  Bruce Korb  <autogen@linuxbox.com

        * fixinc/mkfisinc.sh(i?86-*-linux): disable script, run fixincl exe
        (mips-dec-bsd*): non-functional code
        (alpha*-*-linux-gnu*): redundant, duplicated by "*-*-linux-gnu*"

        * fixinc/inclhack.def(AAB_fd_zero_glibc_*):
        added three replacement fixes
        (no_double_slash): removed comments that are not (any longer) pertinent
        (bad_lval): this fix currently runs against many files.
        The comment seems to indicate that we should select for files
        containing 'pragma extern_prefix'.

        * fixinc/fixinc.x86-linux-gnu: deleted
        * fixinc/inclhack.sh:  regen
        * fixinc/fixincl.x:  regen
        * fixinc/fixincl.sh:  regen

Fri Nov 12 14:08:40 1999  Andrew Haley  <aph@cygnus.com>

        * emit-rtl.c (gen_sequence): Only return the pattern of an insn if
        its code is INSN and it has no notes.

1999-11-22  Andrew Haley  <aph@cygnus.com>

        * varasm.c (function_defined): Remove.
        (make_function_rtl): Don't set function_defined.
        (make_decl_rtl): Remove global register warning.
        * regclass.c (no_global_reg_vars): New variable.
        (globalize_reg): Warn if function has already been defined.
        (regclass_init): Set no_global_reg_vars.

Mon Nov 22 14:42:22 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * regclass.c (reg_pref): New structure and static variable
        (prefclass): Delete.
        (altclass): Delete.
        (all uses of prefclass and altclass): Use reg_pref instead.

1999-11-21  Nick Clifton  <nickc@cygnus.com>

        * invoke.texi (ARM Options): Replace -mshort-load-bytes with
        -malignment-traps.
        (arm.h): Replace -mshort-load-bytes with -malignment-traps.
        (arm.c): Replace TARGET_SHORT_BY_BYTES with TARGET_MMU_TRAPS.
        (arm.md): Replace TARGET_SHORT_BY_BYTES with TARGET_MMU_TRAPS.

Sun Nov 21 17:11:13 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * varasm.c (output_constructor): Solve problem with long long
        bitfields, even on BYTES_BIG_ENDIAN machines (testcase 991118-1).

Fri Nov 19 05:48:45 CET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * global.c (allocno): New structure and static variable.
        (allocno_reg): Remove, all references replaced by allocno.
        (allocno_size): Likewise.
        (hard_reg_conflicts): Likewise.
        (hard_reg_preferences): Likewise.
        (hard_reg_copy_preferences): Likewise.
        (hard_reg_full_preferences): Likewise.
        (regs_someone_prefers): Likewise.
        (allocno_calls_crossed): Likewise.
        (allocno_n_refs): Likewise.
        (allocno_live_length): Likewise.
        (find_reg): Rename ALLOCNO to NUM.

        * regclass.c (may_move_in_cost): Rename from may_move_cost, all
        references updated.
        (may_move_out_cost): New variable.
        (init_reg_sets_1): Initialize may_move_out_cost.
        (record_reg_classes): Use may_move_out_cost.

        * regclass.c (dump_regclass): New function.
        (regclass): New parameter DUMP, call DUMP_REGCLASS.
        * toplev.c (rest_of_compilation): Open lreg dump file before regclass,
        pass rtl_dump_file to regclass.
        * rtl.h (regclass): Update prototype.

Fri Nov 19 06:32:19 CET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (neg, not and abs patterns): Revmap to use
        ix86_expand_unary_operator and ix86_unary_operator_ok.
        (add?f and sub?f expanders): Force operand 1 to register.
        * i386.c (ix86_expand_unary_operator): Rewrite.
        (ix86_unary_operator_ok): Ensure that memory operands
        match real opcode.
        (ix86_binary_operator_ok): Do not allow operand 1 to
        come into memory and operand 0 not.
        (ix86_expand_binary_operator): Ensure that
        src1 is not non-matching memory.

        * i386.md (negs?2): Rewrite to expanders, new patterns and splitters
        to support integer registers and memory.
        (abss?2_integer): Likewise.

        * i386.h (enum reg_class): Add FLOAT_INT_REGS.
        (REG_CLASS_NAMES): Likewise.
        (REG_CLASS_CONTENTS): Define FLOAT_INT_REGS as union of FLOAT_REGS
        and GENERAL_REGS.
        * i386.md (pushsf): Do not preferre FLOAT_REGS over GENERAL_REGS.
        (movsf): Likewise; unify 4th and 5th alternative.
        (pushdf): Likewise.
        (movdf_1): Likewise; rename to movdf_integer.
        (pushxf): Likewise; rename to pushxf_integer; fix output template;
        remove redundant splitter.
        (movxf_1): Likewise; rename to movxf_integer; fix splitter's condition.
        (movdf_nointeger): New.
        (movxf_nointeger): New.
        (pushxf_nointeger): New.

        * i386.md (extend?f?f): Split to expander and pattern, refuse two
        memory operands in patterns.
        (fop*): Refuse two memory operands.

        * i386.md (ashrsi3_31): Allow cltd when optimizing for size even
        on !TARGET_USE_CLTD CPUs.

Fri Nov 19 10:41:15 GMT 1999  Nathan Sidwell  <nathan@acm.org>

        * extend.texi: Document C++ restricted pointers and references.

1999-11-19  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (addr_affects_sp): No longer conditional on AUTO_INC_DEC.
        (invalidate_skipped_set): Call it unconditionally.
        (cse_set_around_loop): Likewise.

Thu Nov 18 17:29:34 MST 1999    Diego Novillo <dnovillo@cygnus.com>

        * rtl.texi (mem): Add documentation for alias-set argument
        to RTX `mem'.

Fri Nov 18 13:39:22 CET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.h (struct_processor_costs): New fields int_load, int_store,
        fp_move, fp_load and fp_store
        (REGISTER_MOVE_COST): Fix comment, calculate exactly the cost of
        fp->int moves
        (MEMORY_MOVE_COST): New macro.
        * i386.c (386_cost): Define new fields.
        (i486_cost): Likewise.
        (pentium_cost): Likewise.
        (pentiumpro_cost): Likewise.
        (k6_cost): Likewise.

Fri Nov 19 11:11:55 1999  Greg McGary  <gkm@gnu.org>
                          Geoffrey Keating  <geoffk@cygnus.com>

        * config/m68k/m68kelf.h: Suppress '/* within comment' warning.

        * config/m68k/m68k.h (MASK_PCREL): Don't use same value as
        MASK_ALIGN_INT.

        * config/m68k/m68k.h (MASK_NO_STRICT_ALIGNMENT): New macro.
        (TARGET_STRICT_ALIGNMENT): New macro.
        (TARGET_SWITCHES): Add "strict-align" and "no-strict-align".
        (STRICT_ALIGNMENT): Depend on TARGET_STRICT_ALIGNMENT.
        * invoke.texi (M680x0 Options): Document -mstrict-align.

Thu Nov 18 11:10:03 1999  Jan Hubicka  <hubicka@freesoft.cz>
                          Richard Henderson  <rth@cygnus.com>

        * i386-protos.h (split_xf, ix86_split_movdi): Remove.
        (ix86_split_long_move): Declare.
        * i386.c (split_xf, ix86_split_movdi): Remove.
        (ix86_split_to_parts, ix86_split_long_move): New.
        * i386.md (dimode move splitters): Use ix86_split_long_move.
        (dfmode move splitters): Likewise.
        (xfmode move splitters): Likewise.
        (movsf_1): Allow F->r.
        (movdf_1, movxf_1): Allow F->ro.

1999-11-17  Mark Mitchell  <mark@codesourcery.com>

        * except.h (struct eh_entry): Add goto_entry_p.
        (eh_region_from_symbol): Remove prototype.
        * except.c (find_func_region_from_symbol): New function.
        (emit_cleanup_handler): Likewise.
        (eh_region_from_symbol): Make it static.
        (add_new_handler): Verify the argument.
        (find_func_region): Update comment.
        (expand_eh_region_end): Expand handlers here, rater than waiting
        until expand_leftover_cleanups or start_all_catch.
        (expand_leftover_cleanups): Don't expand here.
        (expand_start_all_catch): Or here.
        (expand_rethrow): Check the return value from find_func_region.
        * function.c (expand_function_end): Emit the catch_clauses.

1999-11-18  Gavin Romig-Koch  <gavin@cygnus.com>

        * integrate.c (expand_inline_function): Add necessary check for NULL.

1999-11-18  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (main): Correctly detect an unrecognised option.

        * cppinit.c (cpp_handle_option): Do not claim to have consumed
        a -f option if it has not been recognised.

Thu Nov 18 00:59:11 1999  Michael Gschwind  <mikeg@alagoas.watson.ibm.com>

        * basic-block.h (update_life_extent): Remove trailing comma on
        enumeration type list.

1999-11-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * varasm.c (output_constructor) Solved problem with long long
        bitfields. Corrected calculating this_time and shift. Also
        corrected calculating mask when BITS_PER_UNIT == 32 (c4x).

Wed Nov 17 23:46:14 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (split_edge): Take looping structure into account when
        determining where to put the new block note.

Wed Nov 17 20:42:43 1999  Jeff Holcomb  <jeffh@cygnus.com>

        * Makefile.in (ggc-none.o): Provide host specific version if
        needed.

Wed Nov 17 16:51:23 1999  Richard Henderson  <rth@cygnus.com>

        * cse.c (delete_trivially_dead_insns): Identify no-op insns
        containing subregs too.

Wed Nov 17 17:39:48 MST 1999    Diego Novillo <dnovillo@cygnus.com>

        * invoke.texi: Add documentation for -muninit-const-in-rodata.
        * config/mips/mips.h (MASK_UNINIT_CONST_IN_RODATA): Define.
        (TARGET_UNINIT_CONST_IN_RODATA): Define.
        (text_section): Add switches -munint-const-in-rodata and
        -mno-uninit-const-in-rodata.
        (ASM_OUTPUT_COMMON): Remove.
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): Define. Check if uninitialized
        const objects should be placed in read-only data. Otherwise declare
        them in common.

Wed Nov 17 16:38:32 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Revert last change.

Wed Nov 17 15:18:30 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Don't try to duplicate the loop exit
        test if optimizing for size.

1999-11-17  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (toplev.o): Depend on except.h.
        (dwarf2out.o,loop.o,flow.o,haifa-sched.o): Likewise.

Mon Nov 15 22:45:39 CET 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (divmodsi4): Rewrite to expander.
        (*divmodsi4_nocltd): New.
        (*divmodsi4_cltd): New.
        (divmodsi4 splitter): Handle the case when input comes in edx.
        (udivmodhi4): Do not use constraints in exander.
        (ashrsi3_31): Conditionize by TARGET_USE_CLTD.

1999-11-17  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarf2out.c (push_decl_scope): Still use decl_scope_depth - 1
        for the common case.

1999-11-16  Jakub Jelinek  <jakub@redhat.com>

        * explow.c (hard_function_value): Add outgoing argument.
        * expr.h (hard_function_value): Declare it.
        * calls.c (expand_call, emit_library_call_value): Update callers.
        * function.c (aggregate_value_p): Ditto.
        (diddle_return_value): Must look at the outgoing registers
        on archs with register windows.

Mon Nov 15 20:46:45 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_build_va_list): Use make_lang_type and
        initialize TYPE_NAME for the va_list record.

        * flow.c (calculate_global_regs_live): Zero bb->aux to begin.

        * ggc-common.c (ggc_print_statistics): Cast size_t to unsigned long
        for printing.
        * ggc.h (struct ggc_statistics): Rearrange elements for better
        packing on 64-bit hosts.
        * lcm.c (compute_laterin): Store a size_t not an int in bb->aux.
        (compute_nearerout): Likewise.

Tue Nov 16 14:37:52 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (first_reg_to_save): Save
        PIC_OFFSET_TABLE_REGNUM when -fpic even though it is fixed.

1999-11-15  Jason Merrill  <jason@casey.cygnus.com>

        * dwarf2out.c (scope_die_for): Don't rely on the decl_scope_table
        notion of nesting to find the DIE for a type or function.
        DIEs can go in limbo even if we got a context_die.
        (push_decl_scope): Our context doesn't need to be in decl_scope_table.
        (gen_struct_or_union_type_die): Don't use TREE_PERMANENT to test
        for local type.
        (gen_decl_die): Ignore NAMESPACE_DECLs for now.
        (gen_type_die): Writing out the context doesn't cause member class
        template instantiations to be written out as well.

Mon Nov 15 15:33:18 1999  Richard Henderson  <rth@cygnus.com>

        * rs6000.h (ASM_OUTPUT_DEF): New.
        Based on proposed addition from David Edelsohn.

1999-11-15  Robert Lipe  <RobertLipe@usa.net>
            Bruce Korb  <autogen@linuxbox.com>

        * fixinc/inclhack.def
        (AAB_svr4_replace_byteorder): added.  Takes advantage of GCC features
        (unixware7_byteorder_fix): added.  Removes conflicts for new defs
                in net/inet.h.
        (svr5_mach_defines): added.  Like svr4_mach_defines, with new syntax
        (svr4_endian): enabled with SVR5
        (svr4_mkdev): simplified syntax and enabled with SVR5

Sun Nov 14 18:49:37 1999  David O'Brien  <obrien@FreeBSD.org>

        * configure.in: Handle libgcc2 threads support on FreeBSD platforms.
        * configure: Rebuilt.
        * config/t-freebsd-thread: New file.

Sun Nov 14 23:11:05 1999  Jeffrey A Law  (law@cygnus.com)

        * i386.c (ix86_decompose_address): Verify the base is a REG
        before trying to examine its register number.

        * basic-block.h: Remove all #defines and prototypes related to
        integer lists.
        (free_bb_mem, compute_preds_succs): Remove prototype.
        * rtl.h (free_bb_mem): Remove prototype.
        * flow.c (alloc_int_list_node); Remove function.
        (add_inst_list_node, free_int_list, add_pred_succ): Likewise.
        (compute_preds_succs, free_bb_mem): Likewise.
        * gcse.c (gcse_main): Do not call free_bb_mem anymore.
        * toplev.c (rest_of_compilation): Likewise.
        * haifa-sched.c (build_control_flow): Use flow generated edge
        list to build the haifa specific edge list.
        (find_rgns): Use new CFG data structures instead of pred/succ lists.
        (schedule_insns): Do not build pred/succ lists anymore.  Instead
        build the edge table.

        * basic-block.h (dump_bb_data): Remove declaration.
        * flow.c (dump_bb_data): Remove function.
        * sbitmap.c (sbitmap_intersect_of_predsucc): Delete function.
        (sbitmap_union_of_predsucc): Likewise.

        * gcse.c (delete_null_pointer_checks_1): Kill unused s_preds
        argument.  All callers changed.
        (delete_null_pointer_checks_1): No longer need to compute the
        pred/succ lists.

        * gcse.c (pre_expr_reaches_here_p): Kill CHECK_PRE_COM argument.
        All callers changed.
        (pre_expr_reaches_here_p_work): Likewise.
        (pre_edge_insert): No longer call pre_expr_reaches_here_p.
        * lcm.c (compute_laterin): Fix initialization of LATER.
        (compute_nearerout): Similarly for NEARER.

Sun Nov 14 12:41:57 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (set_nonvarying_address_components): Delete unused function.
        (refers_to_p): Likewise.

Fri Nov 12 20:53:22 1999  Jeffrey A Law  (law@cygnus.com)

        * function.c (diddle_return_value): Set REG_FUNCTION_VALUE_P as
        needed.

Sat Nov 13 16:20:09 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * defaults.h (ASM_OUTPUT_ALTERNATE_LABEL_NAME): Wrap macro
        definition in do while (0).

Fri Nov 12 16:26:25 1999  Jim Wilson  <wilson@cygnus.com>

        * stmt.c (pushcase, pushcase_range): Partially revert Oct 28 change.

Fri Nov 12 12:43:49 1999  Richard Henderson  <rth@cygnus.com>

        * unroll.c (unroll_loop): Make temp an unsigned HOST_WIDE_INT.

Fri Nov 12 15:14:19 1999  Vladimir Makarov  <vmakarov@tofu.to.cygnus.com>

        * i960.h (CAN_DEBUG_WITHOUT_FP): Don't define it.
        (FRAME_POINTER_REQUIRED): Don't worry about nonlocal goto.
        (ELIMINABLE_REGS, CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): New.
        (INITIAL_FRAME_POINTER_OFFSET): Remove it.

        * i960.c (i960_function_prologue): Don't allocate space for g8-g11
        saved on the stack.  Output more accurate stack frame statistics
        into assembler file.

1999-11-12 11:47 -0800  Zack Weinberg  <zack@bitmover.com>

        * genextract.c (record_insn_name): New function.
        (get_insn_name): No longer a stub.
        (main): Call record_insn_name for each insn.  After each label
        written, print the insn name in a comment.

Fri Nov 12 13:45:02 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * output.h (const_section, init_section, fini_section): Add
        prototypes.

        * alpha/elf.h (const_section): Delete declaration.

        * svr4.h (const_section): Likewise.

Fri Nov 12 08:54:22 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (SAVE_EXPR_PERSISTENT_P): New macro.
        * tree.c (array_type_nelts): Don't handle SAVE_EXPRs specially.
        (unsave_expr_now): Don't unsave SAVE_EXPR_PERSISTENT_P
        expressions.
        * stor-layout.c (variable_size): Set SAVE_EXPR_PERSISTENT_P on
        variable-sized array bounds.

Fri Nov 12 08:04:45 1999  Catherine Moore  <clm@cygnus.com>

        * defaults.h (ASM_OUTPUT_ALTERNATE_LABEL_NAME):  Use
        ASM_OUTPUT_LABEL.

Fri Nov 12 13:31:54 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/arm.h (LEGITIMIZE_RELOAD_ADDRESS): Treat QImode
        addresses the same way GO_IF_LEGITIMATE_INDEX does.

Fri Nov 12 12:36:04 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (hash_arg_in_struct): Delete.
        (struct table_elt): Delete elt in_struct.
        (struct set): Delete elt src_in_struct.
        (merge_equiv_classes): Don't set either hash_arg_in_struct or
        the corresponding in_struct elts.
        (canon_hash): Likewise.
        (safe_hash): Likewise.
        (find_best_addr): Likewise.
        (record_jump_cond): Likewise.
        (cse_insn): Likewise.

Thu Nov 11 19:45:24 1999  Jim Wilson  <wilson@cygnus.com>

        * loop.c (invariant_p, case MEM): Put MEM_VOLATILE_P check back.

        * dbxout.c (dbxout_type, case INTEGER_TYPE): Handle too large
        unsigned types.

Thu Nov 11 18:54:24 1999  Jeffrey A Law  (law@cygnus.com)

        * function.c (diddle_return_value): Put back check that the DECL_RTL
        for the function is a register.

        * function.c (diddle_return_value): Use hard_function_value to
        get an rtx suitable for use in the USE/CLOBBER insn.

        * global.c (global_conflicts): Update comments.
        (record_conflicts): No need to record conflicts between pseudos here.

1999-11-11  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/fixincl.c: Added verbose levels for status messages

Thu Nov 11 13:23:04 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * jump.c (jump_optimize_1): Avoid passing an rtx that is not an
        operand as argument to expand_and or expand_binop.

Thu Nov 11 02:21:16 1999  Rodney Brown <RodneyBrown@pmsc.com>

        * xcoffout.c (xcoffout_source_file): Change ggc_add_root to
        gcc_add_string_root.

Wed Nov 10 21:24:19 1999  Jason Eckhardt  <jle@cygnus.com>

        * config/pa/pa.h (MASK_RETURN_ADDR): Change 0xfffffffc to -4.

Wed Nov 10 15:56:16 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (compute_flow_dominators): Initially put all blocks on
        the worklist.
        * lcm.c (compute_antinout_edge, compute_available): Similarly.
        * gcse.c (compute_cprop_avinout): Remove.
        (compute_cprop_data): Use compute_available.
        (delete_null_pointer_checks_1): Use compute_available.

        * basic-block.h (compute_available): Returns a void now.
        * gcse.c (one_classic_gcse_pass): Do not expect compute_available
        to return a value anymore.
        * lcm.c (compute_available, compute_antinout_edge): Revamp to use
        worklists.  Fix boundary cases. Compute maximal solutions.
        (compute_laterin, compute_nearerout): Similarly.

        * dwarf2out.c (add_AT_location_description): Allow
        (mem (plus (pseudo) (...)) too.

Wed Nov 10 10:52:42 1999  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (do_spec_1): Support text between `%u' and `%O'.

Wed Nov 10 12:43:21 1999  Philippe De Muyter  <phdm@macqel.be>
                          Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppinit.c: Test `GCC_VERSION', not `HAVE_GCC_VERSION'.

        * gansidecl.h: Likewise.

        * rtl.c: Likewise.

        * rtl.h: Likewise.

        * toplev.h: Likewise.

        * tree.c: Likewise.

        * tree.h: Likewise.

        * varray.c: Likewise.

        * varray.h: Likewise.

Wed Nov 10 10:57:22 1999  Clinton Popetz  <cpopetz@cygnus.com>

        * gcov.c (struct arcdata): Add hits and total, remove prob.
        (output_branch_counts): New.
        (process_args): Set output_branch_counts if -c.
        (calculate_branch_probs): Store hits and total instead of
        percentage.
        (output_data): Emit counts if output_branch_counts is true.
        * gcov.texi (Invoking Gcov): Document -c switch..

Wed Nov 10 01:10:41 1999  Philippe De Muyter  <phdm@macqel.be>

        * genoutput.c (output_insn_data): Cast `INSN_OUTPUT_FORMAT_MULTI' and
        `INSN_OUTPUT_FORMAT_FUNCTION' to `PTR'-type.

Wed Nov 10 00:51:41 1999  Hans-Peter Nilsson  <hp@axis.se>

        * invoke.texi (C Dialect Options): Add missing builtins from
        c-common.c to list.
        * extend.texi (Other Builtins): Copy to this list.

Wed Nov 10 04:58:09 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * Makefile.in (recog.o): Use BASIC_BLOCK_H macro.
        (print-rtl.o, $(HOST_PREFIX_1)print-rtl.o): Likewise.  Remove
        redundant bitmap.h.

Wed Nov 10 00:02:53 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (compute_flow_dominators): No longer treat basic block 0
        or (n_basic_blocks - 1) specially.  Clear the AUX field before
        starting computation of doms/pdoms.  Fix initial state for pdoms.

Wed Nov 10 03:58:08 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * Makefile.in ($(HOST_PREFIX_1)rtl.o): Update dependencies to
        match rtl.o's: added ggc.h and toplev.h
        ($(HOST_PREFIX_1)print-rtl.o): Likewise: added system.h.
        ($(HOST_PREFIX_1)rtlanal.o): Likewise: added system.h.
        ($(HOST_PREFIX_1)obstack.o): Likewise: added $(CONFIG_H).

Tue Nov  9 10:30:08 1999  Tom Tromey  <tromey@cygnus.com>

        * config/i386/xm-djgpp.h (HAVE_DOS_BASED_FILE_SYSTEM): Renamed
        from HAVE_DOS_BASED_FILESYSTEM.
        * gcc.c (find_a_file): Use HAVE_DOS_BASED_FILE_SYSTEM, not
        HAVE_DOS_BASED_FILESYSTEM.
        (main): Likewise.
        (split_directories): Only special-case DOS file names if
        HAVE_DOS_BASED_FILE_SYSTEM is defined.  Use IS_DIR_SEPARATOR
        instead of explicit tests.  Conditionalize on !VMS.
        (make_relative_prefix): Use IS_DIR_SEPARATOR instead of explicit
        tests.  Conditionalize on !VMS.
        (process_command): Only use make_relative_prefix if !VMS.
        (free_split_directories): Conditionalize on !VMS.
        (DIR_UP): Conditionalize on !VMS.

Wed Jun  9 16:57:11 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * gcc.c (STANDARD_BINDIR_PREFIX): Provide default.

Fri Feb  5 14:22:01 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * gcc.c (make_relative_prefix): Handle the HAVE_EXECUTABLE_SUFFIX
        case.

Mon Nov  8 14:16:57 1999  Michael Meissner  <meissner@cygnus.com>

        * invoke.texi (Environment Variables): Document relative path
        lookup.
        * gcc.c (DIR_UP): If not defined, define as "..".
        (standard_bindir_prefix): New static, holds target location to
        install binaries.
        (split_directories): New function to split a filename into
        component directories.
        (free_split_directories): New function, release memory allocated
        by split_directories.
        (make_relative_prefix): New function, make a relative pathname if
        the compiler is not in the expected location.
        (process_command): If GCC_EXEC_PREFIX was not specified, see if we
        can figure out an appropriate prefix from argv[0].
        * Makefile.in (DRIVER_DEFINES): Use unlibsubdir in definition of
        STANDARD_STARTFILE_PREFIX and TOOLDIR_BASE_PREFIX.  Define
        STANDARD_BINDIR_PREFIX.

Wed Nov 10 11:47:54 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x-protos.h: New file.  Prototypes for functions defined
        in c4x.c.
        * config/c4x/c4x.h: Moved prototypes to c4x.h.
        * config/c4x/c4x.c (c4x_preferred_reload_class, c4x_limit_reload_class,
        c4x_secondary_memory_needed) Delete.
        (fp_zero_operand): Add mode argument.

Thu Nov  4 15:52:35 1999  Andrew Haley  <aph@cygnus.com>

        * reload1.c (reload_reg_free_for_value_p): Don't use a register
        that is in reload_reg_used.

Tue Nov  9 16:43:00 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm-protos.h: New file: Prototypes for functions
        defined in arm.c and pe.c.
        * config/arm/arm.h: Fix compile time warnings.
        * config/arm/arm.c: Fix compile time warnings.
        * config/arm/pe.h: Fix compile time warnings.
        * config/arm/aout.h: Fix compile time warnings.

Tue Nov  9 14:55:44 1999  Nick Clifton  <nickc@cygnus.com>

        * config/m32r/m32r-protos.h: New file: Prototypes for functions
        defined in m32r.c

        * config/m32r/m32r.h: Move prototypes to m32r-protos.h
        Add support for subtargets.
        Add prototypes for new predicates.
        Add scheduling macros.

        * config/m32r/m32r.c: Fix compile time warnings.
        (int8_operand): New predicate function.
        (reg_or_cmp_int16_operand): New predicate function.
        (extend_operand): New predicate function.
        (m32r_adjust_code): New scheduling function.
        (m32r_adjust_priorty): New scheduling function.
        (m32r_sched_init): New scheduling function.
        (m32r_sched_reorder): New scheduling function.
        (m32r_sched_variable_issue): New scheduling function.
        (direct_return): New codegen function.
        (m32r_not_same_reg): New rtl testsing function.

        * config/m32r/m32r.md: Fix compile time warnings.
        Add support for pre decrement and post increment memory
        references.
        Add S<cc> patterns.
        Add fabs patterns.

Mon Nov  8 22:20:13 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * global.c (EXECUTE_IF_CONFLICT): Don't define.
        (prune_preferences): Use EXECUTE_IF_SET_IN_ALLOCNO_SET instead.
        (find_reg): Likewise.

Mon Nov  8 13:16:46 1999  Jason Eckhardt  <jle@cygnus.com>

        * config/pa/pa.md (fmpynfadd,{sgl,dbl} insns): Use %fr0 rather than 0
        to avoid assembler errors.

Mon Nov  8 15:38:41 1999  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850-protos.h: New file: Prototypes for functions
        defined in v850.c
        * config/v850/v850.h: Move prototypes to v850-protos.h
        * config/v850/v850.c: Move prototypes to v850-protos.h
        * config/v850/v850.md: Fix compile time warnings.

        * config/fr30/fr30-protos.h: New file: Prototypes for functions
        defined in fr30.c
        * config/fr30/fr30.h: Move prototypes to fr30-protos.h
        * config/fr30/fr30.c: Fix compile time warnings.
        * config/fr30/fr30.md: Fix compile time warnings.

Mon Nov  8 07:25:37 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (get_containing_scope): Declare it.
        * tree.c (get_containing_scope): New fucntion.
        (decl_function_context): Use it.
        * toplev.c (rest_of_compilation): Use get_containing_scope.

aMon Nov  8 03:03:07 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * Makefile.in (rtl.o): Depend on toplev.h.

Sun Nov  7 20:55:14 1999  Mark Mitchell  <mark@codesourcery.com>

        * cse.c (delete_trivially_dead_insns): Replace alloca with
        xmalloc/xcalloc.
        * except.c (update_rethrow_references): Likewise.
        (init_eh_nesting_info): Likewise.
        * function.c (identify_blocks): Likewise.
        * gcse.c (dump_hash_table): Likewise.
        * graph.c (print_rtl_graph_with_bb): Likewise.
        * loop.c (combine_movables): Likewise.
        (move_movables): Likewise.
        (count_loop_regs_set): Likewise.
        (strength_reduce): Likewise.
        * profile.c (compute_branch_probabilities): New function, split
        out from ...
        (branch_prob): Here.  Replace alloca with xmalloc/xcalloc.
        * regclass.c (regclass): Likewise.
        * regmove.c (regmove_optimize): Likewise.
        * toplev.c (compile_file): Likewise.
        (main): Don't mess with the stack rlimit.

Sun Nov  7 19:41:17 1999  Catherine Moore  <clm@cygnus.com>

        * config/elfos.h (ASM_DECLARE_FUNCTION_NAME): Conditionally define.
        (ASM_DECLARE_FUNCTION_SIZE): Conditionally define.

Sun Nov  7 10:23:28 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * integrate.c (save_for_inline_nocopy): Clear in_nonparm_insns.

Sun Nov  7 02:58:48 1999  Jeffrey A Law  (law@cygnus.com)

        * global.c (EXECUTE_IF_CONFLICT): Undo Robert's change.
        (EXECUTE_IF_SET_IN_ALLOCNO_SET): Put curleys around CODE in
        macro expansion.

Sat Nov  6 23:48:30 1999  Robert Lipe  (robertlipe@usa.net)

        * global.c (EXECUTE_IF_CONFLICT): Correct quoting typo.

Sat Nov  6 17:34:39 1999  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (post_dominators): Kill.
        (alloc_code_hoist_mem, free_code_hoist_mem); Kill post_dominators.
        (compute_code_hoist_data): Use compute_flow_dominators.  Do not
        pass in a pdom array since we do not need pdoms.
        * haifa-sched.c (schedule_insns): Similarly.
        * flow.c (compute_dominators): Remove dead function.
        (compute_flow_dominators): Do not compute doms or pdoms if the
        caller does not request them.  Split up loop to build doms and
        pdoms.  Use a worklist to compute doms and pdoms.
        * basic-block.h (compute_dominators): Remove prototype.

Sat Nov  6 11:38:39 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (struct haifa_insn_data, h_i_d): New.
        (insn_luid, insn_priority, insn_costs, insn_units): Remove.
        (insn_reg_weight, insn_depend, insn_dep_count): Remove.
        (insn_blockage, insn_ref_count, line_note, insn_tick): Remove.
        (cant_move, fed_by_spec_load, is_load_insn): Remove.
        (schedule_region): Remove unused variable.
        (schedule_insns): Allocate h_i_d, and not all the separate arrays.

Sat Nov  6 10:00:34 1999  Mark Mitchell  <mark@codesourcery.com>

        * local-alloc.c (local_alloc): Use xmalloc/xcalloc, not alloca.
        (update_equiv_regs): Likewise.
        (block_alloc): Likewise.
        * reg-stack.c (reg_to_stack): Likewise.
        (convert_regs_2): Likewise.
        * reload1.c (reload_as_needed): Likewise.

Sat Nov  6 09:57:59 1999  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (dbxout.o): Depend on ggc.h.
        (dwarf2out.o): Likewise.
        (xcoffout.o): Likewise.
        * dbxout.c: Include ggc.h.
        (dbxout_init): Register lastfile as a root.
        * dwarf2out.c: Include ggc.h.
        (dwarf2out_line): Register lastfile as a root.
        * xcoffout.c: Include ggc.h.
        (xcoffout_source_line): Register xcoff_lastfile as a root.

Sat Nov  6 09:52:09 1999  Richard Henderson  <rth@cygnus.com>

        * i386.md (movdf_1, movxf_1): Earlyclobber general regs destination.

Sat Nov  6 07:48:59 1999  Catherine Moore  <clm@cygnus.com>

        * config/svr4.h (ASM_DECLARE_FUNCTION): Check if already
        defined.
        (ASM_DECLARE_FUNCTION_SIZE): Likewise.

Fri Nov  5 18:33:39 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * global.c (EXECUTE_IF_SET_IN_ALLOCNO_SET): New macro.
        (EXECUTE_IF_CONFLICT): Likewise.
        (ALLOCNO_LIVE_P): Avoid signed division.
        (SET_ALLOCNO_LIVE, CLEAR_ALLOCNO_LIVE): Likewise.
        (prune_preferences, find_reg): Use EXECUTE_IF_CONFLICT.
        (record_one_conflict): Use EXECUTE_IF_SET_IN_ALLOCNO_SET.

Fri Nov  5 12:04:02 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (schedule_block): Don't crash if there's no
        next insn for an interblock movement.
        (add_branch_dependences): Don't allow clobber insns to move either.

Fri Nov  5 10:18:11 1999  Richard Henderson  <rth@cygnus.com>

        * i386.c (split_xf): New.
        * i386-protos.h: Declare it.
        * i386.md (movxf_1): Add general regs alternatives.
        (movxf_1+1): New splitter for same.

Fri Nov  5 12:05:52 1999  Nick Clifton  <nickc@cygnus.com>

        * function.c (purge_addressof_1): Add missing return values.

Fri Nov  5 10:07:25 1999  Nick Clifton  <nickc@cygnus.com>

        * function.c (is_addressof): New function.  Returns true if
        the given piece of RTL is an ADDRESSOF.
        (purge_addressof_1): Make boolean.  Return false if the
        ADDRESSOFs could not be purged.
        (purge_addressof): If ADDRESSOFs could not be purged from the
        notes attached to an insn, remove the offending note(s),
        unless they are attached to a libcall.

1999-11-05  Andreas Jaeger  <aj@suse.de>

        * genoutput.c (null_operand =): Initialize all fields.

        * errors.h: Add extern to prototypes.

Fri Nov  5 01:44:09 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (m68k-next-nextstep4): Handle Openstep 4.2.
        * configure: Rebuilt.

Fri Nov  5 01:24:37 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * global.c (CONFLICTP, SET_CONFLICT): Avoid signed division.
        (mirror_conflicts): New function.
        (global_alloc): Call it.
        (expand_preferences): Remove redundant CONFLICTP test.
        (find_reg, dump_conflicts): Likewise.
        (prune_preferences): Process conflicts one word at a time.

Fri Nov  5 01:05:21 1999  Richard Henderson <rth@cygnus.com>

        * global.c (build_insn_chain): Use EXECUTE_IF_SET_IN_BITMAP
        instead of an explicit loop.

Thu Nov  4 23:07:14 1999  Jim Wilson  <wilson@cygnus.com>

        * cse.c (cse_insn): Revert Oct 31 change.  When computing src_elt,
        if REG_RETVAL check succeeds, then put classp in src_elt.

Thu Nov  4 23:48:14 1999  Jeffrey A Law  (law@cygnus.com)

        * function.c (pad_to_arg_alignment): Only update argument_pad
        if the argument's alignment is greater than STACK_BOUNDARY.

Thu Nov  4 16:44:53 1999  Richard Henderson  <rth@cygnus.com>

        * bitmap.h (BITMAP_XFREE): New.
        * flow.c (life_analysis): Use it.
        (life_analysis_1): Free blocks.

        * combine.c (undo_commit): New.
        (try_combine): Use it.  Don't zap undobuf.undos.
        (combine_instructions): Don't zap undobuf.undos; free the
        undobuf.frees list.

        * local-alloc.c (local_alloc): Free qty_phys_num_sugg.

        * stmt.c (cost_table_): New.
        (estimate_case_costs): Use it instead of xmalloc.

        * toplev.c (compile_file): Reuse dumpname memory instead
        of strdup'ing it.

Thu Nov  4 16:36:44 1999  Richard Henderson  <rth@cygnus.com>

        * reg-stack.c (convert_regs_1): Initialize target_stack->top
        after verifying an EH edge.

        * haifa-sched.c (init_rgn_data_dependences): Correctly
        size bb_pending_lists_length when zeroing.

Thu Nov  4 16:36:36 1999  Richard Henderson  <rth@cygnus.com>

        * function.c (diddle_return_value): New.
        (expand_function_end): Use it.
        * stmt.c (expand_null_return): Likewise.
        (expand_value_return): Likewise.

        * reg-stack.c (subst_stack_regs_pat): Handle clobbers at top-level.

        * reload1.c (reload): Don't remove return value clobbers.

Thu Nov  4 13:33:46 1999  Richard Henderson  <rth@cygnus.com>

        * rtl.c (read_rtx): Use fatal_with_file_and_line not fatal.

Thu Nov  4 12:49:52 1999  Richard Henderson  <rth@cygnus.com>

        * cse.c (cse_main): Use xmalloc, not alloca.
        (cse_basic_block): Likewise.
        * local-alloc.c (local_alloc): Likewise.

Thu Nov  4 14:22:12 1999  David Billinghurst  <David.Billinghurst@riotinto.com.au>
                          Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * rtl.c: Include toplev.h.
        (fatal): Remove declaration.

Thu Nov  4 06:39:47 1999  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (schedule_block): Fix thinko.

1999-11-03  James McKelvey <mckelvey@fafnir.com>

        * fixinc/fixincl.c(create_file):  Allow for systems that do not have
        S_IR* defined values

1999-11-03  Philippe De Muyter  <phdm@macqel.be>

        * fixlib.c (load_file_data): Do not call `realloc' with a NULL pointer;
        call `malloc' instead.

Wed Nov  3 23:05:14 1999  Mark Mitchell  <mark@codesourcery.com>

        * flags.h (flag_renumber_insns): Declare.
        * emit-rtl.c (renumber_insns): Check flag_renumber_insns.  Print
        renumbering table.
        * rtl.h (renumber_insns): Change prototype.
        * toplev.c (flag_renumber_insns): Define.
        (rest_of_compilation): Pass rtl_dump_file to flag_renumber_insns.

Wed Nov  3 15:11:27 1999  David S. Miller  <davem@redhat.com>

        * config/sparc/sparc.md: Remove insn type fpsqrt, add fpsqrts
        and fpsqrtd.  Use them and create fdiv function unit to more
        accurately represent fpu sqrt pipeline semantics on UltraSparc.
        * config/sparc/sparc.c: Account for fpsqrt{s,d} changes.

Wed Nov  3 15:11:27 1999  Matteo Frigo <athena@fftw.org>

        * config/sparc/sparc.md: Adjust FADD/FMUL result latencies to
        3 on UltraSparc.
        * config/sparc/sparc.c (ultra_schedule_insn): Insert launched
        insn into ready list, do not use just a raw swap.

Wed Nov  3 14:51:59 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * rtl.h (renumber_insns): New function.
        (remove_unnecessary_notes): Likewise.
        * emit-rtl.c (renumber_insns): Define.
        (remove_unncessary_notes): Likewise.
        * toplev.c (rest_of_compilation): Remove dead code.
        Use renumber_insns and remove_unncessary_notes.

        * gcse.c (struct null_pointer_info): New type.
        (get_bitmap_width): New function.
        (current_block): Remove.
        (nonnull_local): Likewise.
        (nonnull_killed): Likewise.
        (invalidate_nonnull_info): Take a null_pointer_info as input.
        (delete_null_pointer_checks_1): New function.
        (delete_null_pointer_checks): Use it.

        * haifa-sched.c (find_rgns): Replace uses of alloca with xmalloc.
        (split_edges): Likewise.
        (schedule_block): Likewise.
        (compute_block_backward_dependencies): Likewise.
        (schedule_region): Likewise.
        (schedule_insns): Likewise.

Wed Nov  3 15:40:23 1999  Catherine Moore  <clm@cygnus.com>

        * defaults.h (ASM_OUTPUT_ALTERNATE_LABEL_NAME): Provide default.
        * emit-rtl.c (gen_label_rtx): Support LABEL_ALTERNATE_NAME.
        * final.c (final_scan_insn): Emit LABEL_ALTERNATE_NAME.
        * ggc-common.c (ggc_mark_rtx_children): Mark LABEL_ALTERNATE_NAME.
        * jump.c (delete_unreferenced_labels): Don't delete if
        LABEL_ALTERNATE_NAME is set.
        * print-rtl.c (print_rtx): Dump alternate name.
        * rtl.def (CODE_LABEL): Change format to "iuuis00s".
        * rtl.h (LABEL_ALTERNATE_NAME): Define.
        * rtl.texi (LABEL_ALTERNATE_NAME): Document.
        * tm.texi (ASM_OUTPUT_ALTERNATE_LABEL_NAME): Document.

Wed Nov  3 15:39:19 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fix-header.c (recognized_extern, recognized_function): Constify
        a char*.

        * lcm.c (compute_laterin): Remove unused variable `temp_bitmap'.
        (pre_edge_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
        (compute_available): Remove unused variable `last'.
        (compute_nearerout): Remove unused variable `temp_bitmap'.
        (pre_edge_rev_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
        Remove unused variable `x'.

        * scan.h (recognized_function, recognized_extern): Constify a
        char*.

        * simplify-rtx.c (simplify_rtx): Remove unused variable `new'.

Wed Nov  3 10:40:53 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * varasm.c (decode_rtx_const): Use XSTR to access the string
        of a SYMBOL_REF.

Wed Nov  3 10:10:58 1999  Richard Henderson  <rth@cygnus.com>

        * c-decl.c (duplicate_decls): Copy DECL_MODE too.

Wed Nov  3 12:12:59 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (eliminate_regs_in_insn): If copying insn, also copy notes.

Wed Nov  3 03:26:28 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (ireg_operand): New function.
        * pa.h (PREDICATE_CODES): Handle ireg_operand.
        * pa.md (parallel_addb, parallel_movb): Use ireg_operand.
        Fix out of date comment.

        * pa.md (negdi2): Turn into expander + anonymous pattern.

        * reload.c (find_reloads): Fix typos in recent change.

        * dwarf2out.c: Do not include ctype.h.

Tue Nov  2 21:53:44 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * regclass.c (record_reg_classes): Always use may_move_cost when
        seeing how operand fits with various register classes.

Tue Nov  2 15:38:17 1999  Richard Henderson  <rth@cygnus.com>

        * resource.c: Revert Oct 26 20:42 and Oct 27 00:56 changes.
        * toplev.c: Revert Nov 1 13:22 change.

Tue Nov  2 14:21:37 1999  Jason Eckhardt  <jle@cygnus.com>

        * config/pa/pa.md (height reduction patterns): Add checks for
        overlapping operands to avoid semantic-destroying splits for
        height reduction patterns.

Tue Nov  2 15:27:31 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * configure.in (m68k-hp-hpux*, xm_alloca.h): The underscore should
        have been an hyphen, fixed.
        * configure: Rebuilt.

Tue Nov  2 17:04:36 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/tpe.h: Add prototypes for exported functions.
        * config/arm/pe.c: Fix compile time warnings.
        * config/arm/semi.h: Fix compile time warnings.
        * config/arm/arm.c: Fix compile time warnings.
        * config/arm/arm.h: Fix compile time warnings.
        * config/arm/arm.md: Fix compile time warnings.
        * config/arm/thumb.c: Fix compile time warnings.
        * config/arm/thumb.h: Fix compile time warnings.
        * config/arm/thumb.md: Fix compile time warnings.

Tue Nov  2 04:10:24 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * jump.c (jump_optimize_1): Swap the incscc and the conditional mode
        detection code

        * unroll.c (unroll_loop): Remove LOOP notes when loop is
        completely unrolled.

Tue Nov  2 16:57:22 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (simplify_plus_minus, check_fold_const): Delete declarations.

Tue Nov  2 09:43:00 1999  Catherine Moore  <clm@cygnus.com>

        * Makefile.in (genattrtab): Don't use (HOST_RTLANAL).
        * rtl.h (rtx_equal_p): Move prototype.
        * rtl.c (rtx_equal_function_value_matters): Move from
        rtlanal.c
        (rtx_equal_p): Likewise.
        * rtlanal.c (rtx_equal_function_value_matters): Delete.
        (rtx_equal_p): Likewise.

Mon Nov  1 23:21:17 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * libgcc2.c (__do_global_dtors): Only do EH frame stuff if
        ! HAS_INIT_SECTION.

Mon Nov  1 23:37:38 1999  Jeffrey A Law  (law@cygnus.com)

        * gcc.1 (PA options): Remove obsolete -mshared-libs options.

        * pa.h (ADDR_VEC_ALIGN): Define.

        * jump.c (jump_optimize_1): Also move LOOP_VTOP and LOOP_CONT
        notes when presented with "if (foo) break; end_of_loop" and
        the break sequence gets moved out of the loop.

        * unroll.c (unroll_loop): Allocate memory for MAP using xcalloc.
        Remove explicit zero initializations of entries within MAP.

Mon Nov  1 18:09:14 1999  Richard Henderson  <rth@cygnus.com>

        * reg-stack.c (convert_regs_1): Handle EH edges specially.

Mon Nov  1 15:41:01 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * bitmap.h (BITMAP_XMALLOC): New macro.
        * flow.c (CLEAN_ALLOCA): Remove.
        (delete_unreachable_blocks): Use xmalloc/xcalloc instead of alloca.
        (life_analysis): Likewise.
        (update_life_info): Don't use CLEAN_ALLOCA.
        (life_analysis_1): Use xmalloc/xcalloc instead of alloca.
        (calculate_global_regs_live): Likewise.
        (print_rtl_with_bb): Likewise.
        (verify_flow_info): Likewise.
        * global.c (global_alloc): Likewise.
        (global_conflicts): Likewise.
        * integrate.c (save_for_inline_nocopy): Likewise.
        (expand_inline_function): Likewise.
        * jump.c (jump_optimize_1): Likewise.
        (duplicate_loop_exit_test): Likewise.
        (thread_jumps): Likewise.
        * loop.c (loop_optimize): Likewise.
        (combine_givs): Likewise.
        (recombine_givs): Likewise.
        * reorg.c (dbr_schedule): Likewise.
        * unroll.c (unroll_loop): Likewise.

        * combine.c (combine_instructions): Use xmalloc instead of alloca.

Mon Nov  1 13:22:30 1999  Richard Henderson  <rth@cygnus.com>

        * toplev.c (rest_of_compilation): Don't optimize the CFG
        when rebuilding, just before dbr.

Mon Nov  1 14:35:50 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * output.h (assemble_end_function, assemble_destructor,
        assemble_constructor, assemble_gc_entry, assemble_global,
        assemble_label, output_constant_pool) Constify a char*.

        * varasm.c (assemble_destructor, assemble_constructor,
        assemble_gc_entry, assemble_end_function, assemble_global,
        assemble_label, output_constant_pool): Likewise.

Mon Nov  1 14:22:51 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_expand_prologue): Add comments
        explaining what is goin on in this function.

Mon Nov  1 08:03:15 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * regclass.c (record_reg_classes): In matching case, recompute
        costs since the direction of movement is different.

Sun Oct 31 21:59:34 MST 1999  Diego Novillo <dnovillo@cygnus.com>

        * resource.c (mark_target_live_regs): For unconditional branches,
        the resources found at the branch target should be added to the
        resources found so far, not intersected.

Sun Oct 31 15:48:49 1999  Philippe De Muyter  <phdm@macqel.be>

        * fixinc/fixtests.c, fixinc/fixfixes.c : Keep `#' in first column for
        old cpp's.
        * fixinc/fixincl.c (fcntl.h) : Do not include this file twice.
        (sys/mman.h): Include this file only if #HAVE_MMAP.
        (run_compiles): Initialize `esac_fmt' with one old KR string, not
        with automatically concatenated ANSI strings.

Sun Oct 31 23:57:07 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc-page.c (struct page_entry): Remove save_num_free_objects.
        (DIV_ROUND_UP): Robustify.
        (ggc_recalculate_in_use_p): New function.
        (release_pages): Don't inline it.
        (ggc_alloc_obj): Don't refuse to allocate objects on pages for
        outer contexts.
        (ggc_pop_context): Use ggc_recalculate_in_use_p.
        (clear_marks): Always save in_use_p.
        (sweep_pages): Use ggc_recalculate_in_use_p.
        (ggc_page_print_statistics): Avoid signed/unsigned comparisons.
        Release pages before counting statistics.

Sun Oct 31 23:42:37 1999  Mark Mitchell  <mark@codesourcery.com>

        * toplev.c (rest_of_compilation): Fix thinko in this change:

        Fri Oct 29 15:25:07 1999  Arnaud Charlet  <charlet@ACT-Europe.FR>

        (rest_of_compilation): If inside an inlined external function,
        pretend we are just being declared.

Sun Oct 31 23:03:25 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (calculate_global_regs_live): Fix thinko.

        * integrate.c (expand_inline_function): Fix bugs in previous
        change from Oct 28, 1999.

Sun Oct 31 20:27:45 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_value_return): Fix typo in this change:

        Thu Oct 28 18:06:50 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
        (expand_value_return): Correctly convert VAL when promoting function
        return; support RETURN_REG being a PARALLEL.

Sun Oct 31 20:25:42 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * expr.c (readonly_fields_p): Ignore everything except FIELD_DECLs.

Sun Oct 31 20:42:17 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * hard-reg-set.h (reg_names): Constify a char*.

        * regclass.c  (reg_names): Likewise.

        * regs.h (reg_names): Likewise

        * a29k/a29k.c (reg_names): Delete declaration.

        * a29k/a29k.h (CONDITIONAL_REGISTER_USAGE): Constify a char*.

        * arc/arc.c (arc_save_restore, arc_output_function_prologue,
        arc_output_function_epilogue): Likewise.

        * elxsi/elxsi.c (reg_names): Likewise.

        * gmicro/gmicro.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Likewise.

        * m32r/m32r.c (m32r_output_function_epilogue, emit_cond_move):
        Likewise.

        * m88k/m88k.c (output_function_profiler): Likewise.

        * sparc/sparc.c (sparc_flat_output_function_prologue,
        sparc_flat_output_function_epilogue): Likewise.

Sun Oct 31 13:32:15 CET 1999  Marc Lehmann <pcg@goof.com>

        * toplev.c (rest_of_compilation): Seperate the setjmp/vfork clobber
        warning from -Wuninitialized and put it under -W.
        * function.c (uninitialized_vars_warning): Warn only when the
        corresponding flag is set.

Sun Oct 31 01:53:30 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_insn): If an insn has only a single set, SRC_EQV
        is nonzero and the single set does not have an elt, then assign
        it an elt.

        * simplify-rtx.c: New file.
        * Makefile.in (OBJS): Add simplify-rtx.o
        (simplify-rtx.o): Add dependencies.
        * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes.
        * cse.c: Use simplify_gen_binary intead of cse_gen_binary.
        (cse_gen_binary, simplify_unary_operation): Delete.
        (simplify_binary_operation, simplify_plus_minus): Likewise.
        (check_fold_consts, simplify_relation_operation): Likewise.
        (simplify_ternary_operation): Likewise.
        (delete_trivially_dead_insns): Simplify the contents of the
        REG_EQUAL note before trying to substitute it into the source
        of the reg-reg copy at the end of a libcall sequence.

        * combine.c (combine_simplify_rtx): Renamed from simplify_rtx.  All
        references/callers changed.

        * mn10200.c (mn10200_va_arg): Force the return value into a
        register.

        * fr30.h (EXTRA_CC_NAMES): Remove obsolete macro.

        * cccp.c (macroexpand): Avoid out of range accesses for omitted
        arguments.

Sat Oct 30 22:42:50 1999  Stephen L Moshier <moshier@mediaone.net>

        * c-lex.c (yylex): Accept 'f' in mantissa of hex float constant.

Sat Oct 30 22:19:26 1999  Jeffrey A Law  (law@cygnus.com)

        * fold-const.c (fold): Fix thinko when optimizing comparisons
        against -0.0.

Sat Oct 30 21:32:17 1999  David Starner  <dstarner98@aasaa.ofe.org>

        * gcc.texi (Passes): Update front-end files to their current
        location.

Sat Oct 30 14:41:40 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (SECONDARY_INPUT_RELOAD_CLASS): Call secondary_reload_class.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
        (PREDICATE_CODES): Add addition_operation.
        * alpha-protos.h (addition_operation): Declare.
        (secondary_reload_class): Likewise.
        * alpha.c (addition_operation): New.
        (secondary_reload_class): New, from old SECONDARY_INPUT_RELOAD_CLASS.
        * alpha.md (adddi3): Turn into expander.
        (*lda, *adddi_2): New.
        (movsf, movdf patterns): Don't preference integer regs.
        (movsi, movdi patterns): Don't preference fp regs.

Sat Oct 30 14:38:22 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (write_switch): Check for duplicate CODE cases.

Sat Oct 30 14:31:48 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-common.c: Update pre-function commentary.
        * ggc-page.c: Likewise.
        (poison): Remove.
        (poison_pages): Use memset directly.
        (ggc_alloc_obj): Likewise.  Use a different pattern than poison_pages.
        (ggc_collect): Poison before sweeping.
        * ggc-simple.c: Update pre-function commentary.
        (ggc_alloc_obj): Poison non-zeroed memory.

Sat Oct 30 14:28:52 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc-common.c (ggc_print_statistics): Make arguments to fprintf
        match format string, even on 64-bit hosts.
        * gcc-page.c (ggc_page_print_statistics): Likewise.

Sat Oct 30 14:38:04 1999  Catherine Moore  <clm@cygnus.com>

        * config/i386/i386.c (ix86_cpu): Revert last patch.
        * config/i386/i386.h (ix86_cpu): Ditto.

Fri Oct 29 17:00:42 1999  Jim Wilson  <wilson@cygnus.com>

        * stor-layout.c (layout_type): When compute TYPE_SIZE_UNIT from
        TYPE_SIZE, convert type of result to sizetype.

Fri Oct 29 14:34:17 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (count_or_remove_death_notes): Equate NULL with the
        universal set.

        * jump.c, reg-stack.c, toplev.c: Revert Oct 27 change.
        * toplev.c (rest_of_compilation): Rebuild CFG immediately before
        dbr_schedule.

        * i386.c (pic_label_no): Delete.
        (ix86_attr_length_default): Don't use single_set to peek
        inside a parallel.

        * recog.c (peephole2_optimize): Allow recog_next_insn to index
        the first insn after bb->end.
        * i386.md (push mem peeps): Scratch is live after evaluation
        of the memory.
        (cmp mem peep): Similarly.

Fri Oct 29 11:50:11 1999  Catherine Moore  <clm@cygnus.com>

        * calls.c (emit_library_call_value): Fix declaration of alignment_pad.
        * function.c (pad_to_arg_alignment): Add missing braces.

Fri Oct 29 13:53:48 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alpha/alpha-protos.h (literal_section): Add prototype.
        (alpha_need_linkage, alpha_start_function,alpha_end_function):
        Constify a char*.

        * alpha/alpha.c (alpha_ra_ever_killed, set_frame_related_p): Add
        prototype.
        (alpha_start_function, alpha_end_function, float_strings,
        alpha_need_linkage): Constify a char*

        * alpha/alpha.h (ASM_OUTPUT_ASCII, ASM_OUTPUT_MI_THUNK): Likewise.

        * alpha/alpha32.h (ASM_OUTPUT_MI_THUNK): Likewise.

        * alpha/elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

        * alpha/vms.h (ASM_OUTPUT_SECTION_NAME): Likewise.

Fri Oct 29 13:49:39 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * flow.c (debug_flow_info): Add prototype.

        * gcc.c (main): Likewise.

        * gcse.c (expr_reaches_here_p_work, pre_expr_reaches_here_p_work):
        Likewise.

        * reload1.c (failed_reload, set_reload_reg): Likewise.

        * mips-tfile.c (main): Likewise.
        (pfatal_with_name, fancy_abort, botch, fatal, catch_signal): Mark
        with ATTRIBUTE_NORETURN.

Fri Oct 29 18:16:03 1999  Andrew Haley  <aph@cygnus.com>

        * config/i386/i386.h (ENCODE_SECTION_INFO): Don't do anything if
        DECL is not a memory ref.

Fri Oct 29 09:05:34 1999  Catherine Moore  <clm@cygnus.com>

        * config/i386/i386.h (ix86_cpu): Remove extern attribute.
        * config/i386/i386.c (ix86_cpu): Add extern attribute.

Fri Oct 29 16:30:04 1999  Andrew Haley  <aph@cygnus.com>

        * config/mips/elf.h: remove NAME__MAIN and SYMBOL__MAIN.
        * config/mips/elf64.h: ditto.

Fri Oct 29 08:03:57 1999  Catherine Moore  <clm@cygnus.com>

        * expr.c (emit_push_insn): New argument alignment_pad.
        Update all callers.  Adjust stack pointer based on alignment pad.
        * function.c (pad_to_arg_alignment):  New argument alignment_pad.
        Update all callers.  Track alignment_pad if boundary > PARM_BOUNDARY.
        (locate_and_pad_parm): New argument alignment_pad.  Update all
        callers.
        * expr.h (emit_push_insn): Update prototype.
        (locate_and_pad_parm): Update prototype.
        * calls.c (arg_data):  Add new field alignment_pad.
        (initialize_argument_information): Initialize alignment_pad.

Fri Oct 29 02:51:35 1999  Mark Mitchell  <mark@codesourcery.com>

        * except.c (free_eh_nesting_info): Free the info itself.
        * function.c (free_after_compilation): Don't free NULL.
        * gcse.c (alloc_pre_mem): Free the temp_bitmap, too.
        (pre_edge_insert): Free inserted.
        * stmt.c (free_stmt_status): Don't free NULL.

Fri Oct 29 15:25:07 1999  Arnaud Charlet  <charlet@ACT-Europe.FR>

        * gcov.c (DIR_SEPARATOR): Provide default.
        (output_data): Add test for MS-DOS format absolute filename.
        (fancy_abort): Correct program name.
        (open_files): Open all files in binary mode.
        * libgcc2.c (__bb_exit_func): Likewise.

        * profile.c (init_branch_prob): Specify binary when opening files.

        * flags.h (flag_unwind_tables): New decl.
        * toplev.c (flag_unwind_table): New definition.
        (f_options): Add -funwind-tables.
        (decode_g_option): Clarify warning when unknown -g option is given.
        (rest_of_compilation): If inside an inlined external function,
        pretend we are just being declared.

        * dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
        (dwarf2out_frame_finish): Likewise.

Fri Oct 29 07:44:26 1999  Vasco Pedro  <vp@di.fct.unl.pt>

        * fold-const.c (merge_ranges): If not in0, but in1, handle
        upper bounds equal like subset case.

Thu Oct 28 19:22:24 1999  Douglas Rupp <rupp@gnat.com>

        * dbxout.c (dbxout_parms): Generate a second stabs line for parameters
        passed in a register but moved to the stack.

Thu Oct 28 19:12:57 1999  Sam Tardieu  <tardieu@act-europe.fr>

        * gcc.c (pass_exit_codes, greatest_status): New variables.
        (struct option_map): Add entry for "--pass-exit-codes".
        (execute): Update greatest_status if error.
        (display_help): Add documentation for -pass-exit-codes.
        (process_command): Handle -pass-exit-codes.
        (main): Look at pass_exit_codes and greatest_status on call to exit.

Thu Oct 28 18:06:50 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * reload.c (find_reloads): Refine test for no input reload
        case to not includes reloads emitted after insn.

        * function.c (find_temp_slots_from_address): Handle sum involving
        a register that points to a temp slot.
        (update_temp_slot_address): Make recursive call if both old and
        new are PLUS with a common operand.
        * calls.c (expand_call): Mark temp slot for result as having
        address taken.

        * rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.

        * gcc.c (process_command): Add standard_exec_prefix with "GCC"
        component as well as "BINUTILS".

        * integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
        * integrate.c (copy_rtx_and_substitute): Likewise.
        (expand_inline_function, integrate_parm_decls, integrate_decl_tree):
        All callers changed.
        * unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.

        * dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
        gdb extensions, write size of type; also be more consistent
        in using references when this is a subtype.

        * pa.md (extv, extzv, insv): Use define_expand to reject constant
        that is out of range.

        * loop.c (unknown_constant_address_altered): New variable.
        (prescan_loop): Initialize it.
        (note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
        (invariant_p, case MEM): Remove handling for volatile and readonly;
        check new variable if readonly.
        (check_dbra_loop): Chdeck unknown_constant_address_altered.

        * cse.c (canon_hash, case MEM): Do not record if BLKmode.
        (addr_affects_sp_p): Removed from note_mem_written and only
        define #ifdef AUTO_INC_DEC.

        * alpha.c (input_operand, case ADDRESSOF): Treat as REG.

        * regclass.c (record_reg_classes): Properly handle register move
        directions.

        * varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
        Don't think valid if both operands are invalid.
        (struct constant_descriptor): New field RTL.
        (mark_const_hash_entry): Mark it.
        (record_constant{,_rtx}): Initialize it.
        (output_constant_def): Allocate RTL in permanent obstack and
        save in table.
        ({record,compare}_constant_1): Modes must match for
        CONSTRUCTOR of ARRAY_TYPE.

        * c-common.h (initializer_constant_valid_p): Delete decl from here.
        * output.h (initializer_constant_valid_p): Move decl to here.
        * c-common.c (initializer_constant_valid_p): Delete function from here.
        * varasm.c (initializer_constant_valid_p): Move function to here.

        * tree.h (STRIP_SIGN_NOPS): New macro.
        * fold-const.c (optimize_minmax_comparison): New function.
        (invert_truthvalue, case WITH_RECORD_EXPR): New case.
        (fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
        (fold, case EQ_EXPR): Call optimize_minmax_comparison and add
        cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
        widening conversions.
        (fold, case LE_EXPR): Rework changing unsigned to signed comparisons
        to look at size of mode, not precision of type; also add missing cases.
        (optimize_bit_field_compare, decode_field_reference): Don't try to
        optimize COMPONENT_REF of a PLACEHOLDER_EXPR.

        * dwarf2out.c (ctype.h): Include.
        (dwarf2out_set_demangle_name_func): New function.
        (size_of_line_info): Deleted.
        (output_line_info): Compute size of line info table from difference
        of labels.
        (base_type_die, add_name_attribute): Call demangle function, if any.
        (field_byte_offset): Use bits per word for variable length fields.
        (gen_array_type_die): Add array name.
        (gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
        (dwarf2out_add_library_unit_info): New function.

        * explow.c (set_stack_check_libfunc): New function.
        (stack_check_libfunc): New static variable.
        (probe_stack_range): Allow front-end to set up a libfunc to call.

        * combine.c (simplify_comparison): When making comparison in wider
        mode, check for having commuted an AND and a SUBREG.
        (contains_muldiv): New function.
        (try_combine): Call it when dividing a PARALLEL.
        (simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
        (simplify_comparison, case ASHIFTRT): Recognize sign-extension of
        a PLUS.
        (record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
        use one of the CLOBBERs instead.
        (if_then_else_cond): If comparing against zero, just return thing
        being compared.

        * optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
        Don't generate shifts and subtract if have conditional arithmetic.

        * rtl.h (delete_barrier): New declaration.
        * jump.c (jump_optimize): Set up to handle conditional call.
        In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
        (delete_barrier): New function.

        * rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.

        * recog.c (nonmemory_operand): Accept ADDRESSOF.

        * tree.c (build_type_attribute_variant): Push to obstack of
        ttype around type_hash_canon call.

        * expr.c (placeholder_list): Move decl to file scope.
        (expand_expr): Don't force access to volatile just because its
        address is taken.
        If ignoring reference operations, just expand the operands.
        (expand_expr, case COMPONENT_REF): Propagate
        EXPAND_CONST_ADDRESS to recursive call when expanding inner.
        Refine test for using bitfield operations vs pointer punning.
        (expand_expr, case CONVERT_EXPR): If converting to
        BLKmode UNION_TYPE from BLKmode, just return inner object.
        Use proper mode in store_field call.
        Properly set sizes of object to store and total size in store_field
        call for convert to union.
        (expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
        memory (like for ADDR_EXPR).  Also, don't put constant in register if
        we'll want it in memory.
        (readonly_fields_p): New function.
        (expand_expr, case INDIRECT_REF): Call it if LHS.
        (expand_assignment): Handle a RESULT_DECL where
        DECL_RTL is a PARALLEL.
        (do_jump, case WITH_RECORD_EXPR): New case.
        (get_inner_reference): Always go inside a CONVERT_EXPR
        and NOP_EXPR if both modes are the same.
        (store_field): Use bitfield operations if size of bitsize is not same
        as size of RHS's type.
        Check for bitpos not a multiple of alignment in BLKmode case.
        Do block move in largest possible alignment.
        (store_constructor): Set BITSIZE to -1 for variable size and properly
        in case of array of BLKmode.
        (expand_expr_unaligned): New function.
        (do_compare_and_jump): Call it.

        * mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
        * collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
        does not include 'o'.

        * function.c (instantiate_virtual_regs_1, case SET): Handle case where
        both SET_DEST and SET_SRC reference a virtual register.
        (gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.

        * integrate.c (expand_inline_function): Handle case of setting
        virtual stack vars register (from built in setjmp); when parameter
        lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
        (subst_constant): Add new parm, MEMONLY.
        (expand_inline_function, integrate_parm_decls): Pass new parm.
        (integrate_decl_tree): Likewise.
        (copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
        (try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
        (copy_rtx_and_substitute, case SET): Add explicit calls to
        copy_rtx_and_substitute for both sides.

        * stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
        constraints.
        (pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
        within INDEX_TYPE, instead of before.
        (fixup_gotos): Use f->target_rtl, not the next insn,
        since latter may be from a later fixup.
        (expand_value_return): Correctly convert VAL when promoting function
        return; support RETURN_REG being a PARALLEL.
        (expand_return): When checking for result in regs and having
        cleanup, consider PARALLEL in DECL_RTL as being in regs.

1999-10-28 21:27 -0700  Zack Weinberg  <zack@bitmover.com>

        * cpplib.h (struct cpp_buffer: fname, nominal_fname,
        last_nominal_fname): Mark const.
        (struct include_hash: name, nshort, control_macro): Mark
        const.
        (struct macrodef: symnam): Mark const.
        (struct if_stack: fname): Mark const.
        (is_idchar, is_idstart, is_hor_space, trigraph_table): Delete.
        (IStable): New character-syntax array which encompasses all
        the old is_foo arrays.
        (is_idchar, is_numchar, is_idstart, is_numstart, is_hspace,
        is_space): New macros for interrogating IStable.
        (check_macro_name): Kill last argument.  All callers changed.

        * cppinit.c (initialize_char_syntax): Delete.
        (is_idchar, is_idstart, is_hor_space, is_space,
        trigraph_table): Delete.
        (IStable): New.  Initialize with clever macros to avoid
        information duplication.
        (builtin_array): Table of builtins to get rid of explicit list
        in initialize_builtins.
        (initialize_builtins): Use builtins_array.
        (cpp_start_read): Call init_IStable, and set IStable['$'] if
        opts->dollars_in_ident.

        * cppexp.c: Change all refs to is_xyz[] arrays to use new
        is_xyz() macros.
        (cpp_parse_expr): Avoid 'format string is not constant'
        warning. Use ISGRAPH to identify printable chars.
        * cppfiles.c: Change all refs to is_xyz[] arrays to use new
        is_xyz() macros.
        (read_and_prescan): Map trigraphs to chars with open-coded
        if-else-if-... sequence, not a lookup table.
        * cpphash.c: Change all refs to is_xyz[] arrays to use new
        is_xyz() macros.
        * cpplib.c: Change all refs to is_xyz[] arrays to use new
        is_xyz() macros.  Kill SKIP_ALL_WHITE_SPACE (unused).
        (check_macro_name): Remove ability to report an invalid
        assertion name, which is never used.
        (do_line): Constify a couple of char *'s.
        * cppmain.c (main): Call cpp_cleanup before returning.

Thu Oct 28 21:16:35 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc.h (struct ggc_statistics): New type.
        (ggc_get_size): New function.
        (ggc_print_statistics): Likewise.
        * ggc-common.c (ggc_stats): New variable.
        (ggc_mark_rtx_children): Keep statistics.
        (ggc_mark_tree_children): Likewise.
        (ggc_print_statistics): New function.
        * ggc-page.c (struct globals): Add bytes_mapped field.
        (alloc_anon): Update it.
        (release_pages): Likewise.
        (ggc_get_size): New function.
        (ggc_page_print_statistics): New function.
        * ggc-simple.c (ggc_get_size): New function.

Fri Oct 29 06:32:44 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * flow.c (propagate_block): When the last reference to a label
        before an ADDR_VEC is deleted because the reference is a dead
        store, delete the ADDR_VEC.

Thu Oct 28 12:28:50 1999  Richard Henderson  <rth@cygnus.com>

        * resource.c (find_free_register): Don't use the frame pointer
        if frame_pointer_needed.

Thu Oct 28 10:02:00 1999  Jim Wilson  <wilson@cygnus.com>

        * config/mips/mips.c (mips_va_arg): Delete gen_jump as emit_jump arg.
        (function_arg_pass_by_reference): Check for a NULL pointer in cum.

        * config/i960/i960.c (i960_va_start): New locals base, num.
        Use INDIRECT_REF instead of ARRAY_REF on valist.
        (i960_va_arg): Use INDIRECT_REF instead of ARRAY_REF on valist.

Thu Oct 28 09:45:48 1999  Mark Mitchell  <mark@codesourcery.com>

        * gcse.c (delete_null_pointer_checks): Fix typo in previous change.

Thu Oct 28 03:37:50 1999  Peter Gerwinski <peter@gerwinski.de>

        * tree.def (PLACEHOLDER_EXPR): Update comments.

Thu Oct 28 06:47:32 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (check_format_info): Avoid non-literal format string
        warnings when `first_arg_num' is zero.

Thu Oct 28 12:28:48 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * rtl.texi: Delete explicit Prev, Up and Next entries in "@node"s.

Thu Oct 28 11:05:13 1999  Richard Earnshaw <rearnsha@arm.com>

        * arm.md (casesi_insn): Add a clobber of the condition code
        register.

Mon Oct 18 21:16:06 1999  Fred Fish  <fnf@be.com>

        * tm.texi (CC1PLUS_SPEC): Make it clear in the docs that CC1_SPEC is
        used by both cc1 and cc1plus.

Thu Oct 28 10:00:48 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Initialise arm_structure_size_boundary to
        DEFAULT_STRUCTURE_SIZE_BOUNDARY.
        * config/arm/arm.h (DEFAULT_STRUCTURE_SIZE_BOUNDARY): Define
        to the value 32 if it has not already been defined.
        * config/arm/netbsd.h (DEFAULT_STRUCTURE_SIZE_BOUNDARY):
        Override definition in arm.h with a value of 8.

Thu Oct 28 03:12:02 1999  David Starner  <dstarner98@aasaa.ofe.org>

        * c-pragma.c (push_alignment): Don't check the return value
        of xmalloc.

Thu Oct 28 03:08:38 1999  Matteo Frigo <athena@fftw.org>

        * sparc.h (ADJUST_COST): Fix thinko.

Thu Oct 28 02:44:03 1999  Glen Nakamura  <glen.nakamura@usa.net>

        * cccp.c (rescan): Fixed obp pointer handling around call to
        check_expand subroutine.

Thu Oct 28 02:15:22 1999  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (delete_null_pointer_checks): Only record non-null info
        for pseudos when examining stores.

        * arm.md (adddi3, adddi_sesidi_di, adddi_sesidi_di): Add
        splitters for these patterns.  Use "#" for output templates.
        (addsi3_carryin_shift): New pattern.

Thu Oct 28 10:20:02 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (movsf): Don't convert a SUBREG
        of the function return register into a plain REG until
        after function inlining is done.

Wed Oct 27 15:21:46 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): If we did cross-jumping, and
        the data will matter, rebuild the CFG.
        * reg-stack.c (reg_to_stack): Only (re)build the CFG if
        not optimizing.  Don't run shorten_branches.
        * toplev.c (rest_of_compilation): Run shorten_branches after
        reg_to_stack.

Wed Oct 27 12:33:40 1999  Mark Mitchell  <mark@codesourcery.com>

        * rtl.h (note_stores): Add additional paramter.
        * rtlanal.c (reg_set_p_1): Take additional paramter.
        (reg_set_last_1): Likewise.
        (reg_set_p): Adjust call to note_stores.
        (reg_set_last): Likewise.
        (note_stores): Pass data parameter to worker function.
        * alias.c (record_set): Take additional parameter.
        (init_alias_analysis): Pass it.
        * caller-save.c (mark_set_regs): Take additional parameter.
        (save_call_clobbered_regs): Pass NULL to note_stores.
        * combine.c (set_nonzero_bits_and_sign_copies): Take additional
        parameter.
        (record_dead_and_set_regs_1): Likewise.
        (reg_dead_at_p_1): Likewise.
        (combine_instructions): Adjust calls to note_stores.
        (try_combine): Likewise.
        (record_dead_insn): Remove.
        (record_dead_and_set_regs): Adjust calls to note_stores.
        (reg_dead_at_p): Likewise.
        * cse.c (invalidate_skipped_set): Take additional parameter.
        (cse_check_loop_start): Likewise.
        (cse_check_loop_start_value): Remove.
        (cse_set_around_loop): Adjust calls to note_stores.
        * flow.c (notice_stack_pointer_modification): Take additional
        parameter.  Remove duplicate declaration.
        (record_volatile_insns): Adjust calls to note_stores.
        * gcse.c (record_set_info): Take additional parameter.
        (record_last_set_info): Likewise.
        (invalidate_nonnull_info): Likewise.
        (record_set_insn): Remove.
        (compute_sets): Adjust calls to note_stores.
        (last_set_insn): Remove.
        (compute_hash_table): Adjust calls to note_stores.
        (insert_insn_end_bb): Likewise.
        (delete_null_pointer_checks): Likewise.
        * global.c (mark_reg_store): Take additional parameter.
        (mark_reg_clobber): Likewise.
        (reg_becomes_live): Likewise.
        (global_conflicts): Adjust calls to note_stores.
        (build_insn_chain): Likewise.
        * integrate.c (note_modified_parmregs): Take additional parameter.
        (mark_stores): Likewise.  Make it static.
        (save_for_inline_nocopy): Adjust calls to note_stores.
        (try_constants): Likewise.
        * integrate.h (mark_stores): Remove declaration.
        * jump.c (mark_modified_reg): Take additional parameter.
        (thread_jumps): Adjust calls to note_stores.
        * local-alloc.c (validate_equiv_mem_from_store): Take additional
        parameter.
        (no_equiv): Likewise.
        (reg_is_set): Likewise.
        (validate_equiv_mem): Adjust calls to note_stores.
        (update_equiv_regs): Likewise.
        (block_alloc): Likewise.
        * loop.c (note_set_pseudo_multiple_uses_retval): Remove.
        (note_addr_stored): Take additional parameter.
        (note_set_pseudo_multiple_uses): Likewise.
        (record_initial): Likewise.
        (prescan_loop): Adjust calls to note_stores.
        (strength_reduce): Likewise.
        (check_dbra_loop): Likewise.
        * regmove.c (flags_set_1): Take additional paramter.
        (mark_flags_life_zones): Adjust calls to note_stores.
        * reload1.c (mark_not_eliminable): Take additional parameter.
        (forget_old_reloads_1): Likewise.
        (reload_cse_invalidate_rtx): Likewise.
        (reload_cse_check_clobber): Likewise.
        (reload_combine_note_store): Likewise.
        (move2add_note_store): Likewise.
        (reload): Adjust calls to note_stores.
        (reload_as_needed): Likewise.
        (emit_reload_insns): Likewise.
        (reload_cse_regs_1): Likewise.
        (reload_cse_record_set): Adjust calls to reload_cse_invalidate_rtx.
        (reload_combine): Adjust calls to note_stores.
        * resource.c (update_live_status): Take additional paramter.
        (mark_target_live_regs): Adjust calls to note_stores.
        * stupid.c (find_clobbered_regs): Take additional parameter.
        (stupid_life_analysis): Adjust calls to note_stores.

Wed Oct 27 19:26:12 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/coff.h (STRUCTURE_SIZE_BOUNDARY): Delete
        definition.

        * config/arm/elf.h (STRUCTURE_SIZE_BOUNDARY): Delete
        definition.

        * config/arm/arm.h (STRUCTURE_SIZE_BOUNDARY): Define in terms
        of the variable arm_structure_size_boundary.

Wed Oct 27 02:05:58 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * alias.c (init_alias_analysis): Allocate reg_known_value and
        reg_known_equiv_p on the heap.  Likewise for new_reg_base_value
        and reg_seen.
        (end_alias_analysis): Free reg_known_value and reg_known_equiv_p.
        * cse.c (cse_main): Call end_alias_analysis.
        * haifa-sched.c (schedule_insns): Likewise.
        * local-alloc. (update_equiv_regs): Likewise.
        * reload1.c (reload_cse_regs): Likewise.

Wed Oct 27 01:49:17 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * sparc/sparc.c (sparc_override_options): Clear MASK_FPU_SET.
        * sparc/sparc.h (TARGET_SWITCHES): Add "fpu" entry for reverse
        mapping from MASK_FPU.

Wed Oct 27 01:42:26 1999  Scott Christley  <scottc@net-community.com>

        * sparc.md (call): Don't bound structure return size to 0xfff.

Wed Oct 27 00:56:59 1999  Richard Henderson  <rth@cygnus.com>

        * resource.c (mark_target_live_regs): Check that the target
        insn wasn't created after compute_bb_for_insn.

Tue Oct 26 23:15:03 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc-page.c (poison_pages): Don't be overzealous.

Tue Oct 26 23:29:18 1999  Jeffrey A Law  (law@cygnus.com)

        * alias.c: Update comments for ADDRESS.
        (nonlocal_reference_p): Look inside the ADDRESS to determine if
        it is a local memory reference.

        * c-typeck.c (build_function_call): Check that the built-in
        function is of class BUILT_IN_NORMAL before trying to recongize
        it as BUILT_IN_ABS.
        * calls.c (calls_function_1): Similarly for BUILT_IN_ALLOCA.
        * stmt.c (expand_end_cae): Similarly for BUILT_IN_CLASSIFY_TYPE.

Wed Oct 27 00:14:13 1999  Robert Lipe  <robertlipe@usa.net>

        * gcse.c (expr_reaches_here_p): Use xcalloc and explit free instead
        of alloca.
        (pre_gcse): Likewise.
        (hoist_expr_reaches_here_p): Likewise.
        (hoist_code): Likewise.
        (pre_expr_reaches_here_p): Replace alloca with xcalloc.  Move core
        code to ...
        (pre_expr_reaches_here_p_work): ... here.
        (expr_reaches_here_p): Replace alloca with xcalloc.  Move core
        code to ...
        (expr_reaches_here_p_work): ... here.

Tue Oct 26 20:42:45 1999  Richard Henderson  <rth@cygnus.com>

        * resource.c (find_basic_block): Delete.
        (mark_target_live_regs, incr_ticks_for_insn): Use BLOCK_NUM instead.
        (init_resource_info): Call compute_bb_for_insn.

Tue Oct 26 20:21:02 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (merge_blocks_move_predecessor_nojumps): Cope
        with already adjacent blocks, but no fallthru.
        (merge_blocks_move_successor_nojumps): Simplify.
        (debug_flow_info): New.

        * toplev.c (rest_of_compilation): Open jump1 dump file before
        jump and close after, as opposed to just using dump_rtl.

Wed Oct 27 03:09:23 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload.h (earlyclobber_operand_p): Declare.
        * reload.c (earlyclobber_operand_p): Don't declare.  No longer static.
        * reload1.c (reload_reg_free_for_value_p):  RELOAD_OTHER reloads with
        an earlyclobbered output conflict with RELOAD_INPUT reloads - handle
        case where the RELOAD_OTHER reload is new.  Use earlyclobber_operand_p.

Tue Oct 26 18:23:38 1999  Jan Hubicka  <hubicka@freesoft.cz>
                          Richard Henderson  <rth@cygnus.com>

        * emit-rtl.c (emit_block_insn_before): New.
        (emit_block_insn_after): New.
        * basic-block.h: Declare them.

        * bitmap.h: Protect from multiple inclusion.

        * recog.c (scratch_operand): Handle VOIDmode correctly.

        * rtl.h (JUMP_CROSS_JUMP_DEATH_MATTERS): New.

        * builtins.c (expand_builtin_apply_args_1): Remove STACK_REGS hack.
        * function.c (assign_parms): Likewise.
        * global.c (global_conflicts): Clarify STACK_REGS commentary.

        * reg-stack.c (max_uid): Remove.
        (blocks, block_begin, block_end, block_drops_in): Remove.
        (block_stack_in, block_out_reg_set, block_number): Remove.
        (struct block_info_def, BLOCK_INFO): New.
        (enum emit_where): New.
        (current_block): New.
        (BLOCK_NUM): Remove.
        (mark_regs_pat, record_label_references): Remove.
        (record_reg_life_pat, record_reg_life, find_blocks): Remove.
        (nan): New.
        (goto_block_pat, print_blocks, dump_stack_info): Remove.
        (reg_to_stack): Simplified test for existance of fp code.  Use
        flow.c code.  Call shorten_branches after cross-jump opt.
        (check_asm_stack_operands): Renamed from record_asm_reg_life.
        Return false if the asm doesn't use stack regs.  Don't do life
        analysis on the asm.
        (emit_pop_insn): Replace function pointer arg `when' with
        enum `where'.  Update all callers.
        (change_stack): Likewise.  Update basic block end.
        (emit_swap_insn): Use current_block->head to limit reverse search
        for start of block.  Use emit_block_insn_after.
        (subst_stack_regs_pat): Handle USE and CLOBBER patterns.
        (subst_asm_stack_regs): Use check_asm_stack_operands.  Use direct
        structure assignment instead of bcopy.
        (print_stack): New.
        (convert_regs_entry, convert_regs_exit): New.
        (convert_regs_1, convert_regs_2): Split out from convert_regs.
        Work on basic blocks and the CFG.
        (convert_regs): Use them.

        * i386.c (output_fix_trunc): Remove code for DImode input operand
        not at top-of-stack.
        * i386.c (fix_truncdfdi2, fix_truncsfdi2): Use scratch with
        appropriate mode.
        (fix_truncdi_1): Allow any mode scratch.

Tue Oct 26 13:30:35 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (TARGET_MEM_FUNCTIONS): Define here.
        * linux.h, netbsd.h, vms.h: Not here.

1999-10-26  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (ISA_HAS_64BIT_REGS,ISA_HAS_BRANCHLIKELY,
        ISA_HAS_FP4,ISA_HAS_CONDMOVE): New.
        (GENERATE_BRANCHLIKELY,HAVE_SQRT_P,
        CONDITIONAL_REGISTER_USEAGE): Use them.
        * config/mips/mips.c (mips_move_1word,mips_move_2words,
        gen_conditional_branch,override_options) : Use them.
        * config/mips/mips.md : Use them.

Tue Oct 26 13:09:23 1999  Richard Henderson  <rth@cygnus.com>

        * i386.md (zero_extendqihi2): Use SImode register name with andl.

Tue Oct 26 12:35:38 1999  Richard Henderson  <rth@cygnus.com>

        * integrate.c (function_cannot_inline_p): Don't allow inlining
        if setjmp is used.

Tue Oct 26 14:10:23 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (cast_expr): Constify.

        * cccp.c (special_symbol): Likewise.

        * cse.c (hash_cse_reg_info, cse_reg_info_equal_p): Likewise.

        * dwarf2out.c (base_type_die): Likewise.

        * global.c (allocno_compare): Likewise.

        * local-alloc.c (qty_compare_1, qty_sugg_compare_1): Likewise.

        * regclass.c (fix_register): Likewise.

        * rtl.h (fix_register): Likewise.

        * stupid.c (stupid_reg_compare): Likewise.

        * toplev.c (decode_f_option): Likewise.

        * tree.c (build_complex_type): Likewise.

Tue Oct 26 18:35:25 1999  Richard Earnshaw  <rearnsha@arm.com>

        * output.h: Don't unnecessarily conditionalize prototypes on TREE_CODE.

Tue Oct 26 15:42:56 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload.c (find_reloads): Compute mode and nregs fields of all
        reloads.
        * reload1.c (calculate_needs_all_insns): Simplify a bit.
        (calculate_needs): Use precomputed mode/nregs values.
        (allocate_reload_reg): Likewise.
        Break out two...
        (failed_reload, set_reload_reg): ... new functions.
        (choose_reload_regs_init): New function, mostly broken out from...
        (choose_reload_regs): ... here.  Lose all the save_xxx nonsense.
        Also lose one #if 0 block.

Tue Oct 26 02:48:32 1999  Marc Espie <espie@cvs.openbsd.org>

        * Makefile.in (AR_FOR_TARGET, RANLIB_FOR_TARGET):  Fix target name
        substitution.

Tue Oct 26 01:27:32 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (BLOCK_TYPE_TAGS): Remove.
        (BLOCK_END_NOTE): Likewise.
        (BLOCK_LIVE_RANGE_FLAG): Likewise.
        (BLOCK_LIVE_RANGE_START): Likewise.
        (BLOCK_LIVE_RANGE_END): Likewise.
        (tree_block): Remove live_range_flag, live_range_var_flag, and
        type_tags.  Remove end_note, live_range_start, and live_range_end.
        (remember_end_note): Remove prototype.
        * tree.c (build_block): Don't set BLOCK_TYPE_TAGS.
        * c-decl.c (poplevel): Don't set BLOCK_TYPE_TAGS or call
        remember_end_note.
        * ggc-common.c (ggc_mark_tree_children): Don't mark
        BLOCK_TYPE_TAGS or BLOCK_END_NOTE.
        * integrate.c (adjust_copied_decl_tree): Remove.
        * print-tree.c (print_node): Don't print BLOCK_TYPE_TAGS.
        * stmt.c (last_block_end_note): Remove.
        (init_stmt): Don't add a GC root for it.
        (expand_fixup): Don't set it.
        (remember_end_note): Remove.
        (expand_end_bindings): Don't set last_block_end_note.

Tue Oct 26 00:41:54 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (reload_reg_free_for_value_p): Show
        RELOAD_FOR_OTHER_ADDRESS reloads can conflict with RELOAD_OTHER
        reloads.

Mon Oct 25 23:54:45 1999  Geoff Keating  <geoffk@cygnus.com>

        * expmed.c (extract_bit_field): Allow for the case of non-integer
        objects that are smaller than a word (like SFmode on a 64-bit
        machine).

        * loop.c (basic_induction_var): A non-integer variable which is
        being set by a paradoxical subreg is probably not a biv.

1999-10-25 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * prefix.c (translate_name) Check for empty prefix string.

Mon Oct 25 23:10:45 1999  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (CPP_CROSS_NAME): New variable.
        (install-cpp): Use it instead of CPP_INSTALL_NAME for the cross
        xcpp.
        (uninstall-cpp): Use CPP_INSTALL_NAME and CPP_CROSS_NAME for the
        names of the files to be uninstalled.

Mon Oct 25 23:03:09 1999  Jeffrey A Law  (law@cygnus.com)

        * collect2.c (IS_DIR_SEPARATOR): Define.
        (prefix_from_string): Use IS_DIR_SEPARATOR and DIR_SEPARATOR.

        * som.h (ASM_DECLARE_FUNCTION_NAME): Set PRIV_LEV for static
        functions too.

        * haifa-sched.c (add_dependence): Update the true dependency
        cache the first time we add a true dependence to the LOG_LINKS chain.

Mon Oct 25 22:27:40 1999  Jim Kingdon  <http://developer.redhat.com/>

        * fold-const.c (fold): Fix comment.

Mon Oct 25 22:49:34 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dbxout.c (lastfile, cwd, dbxout_type_method_1,
        dbxout_symbol_location, dbxout_symbol_name, dbxout_init,
        dbxout_start_new_source_file, dbxout_source_file,
        dbxout_source_line, dbxout_finish, dbxout_type_fields,
        dbxout_type_methods, dbxout_symbol, dbxout_prepare_symbol):
        Constify a char*.
        (dbxout_types, dbxout_args, dbxout_symbol): Delete prototypes.
        (dbxout_symbol): Mark parameter `local' with ATTRIBUTE_UNUSED.
        (dbxout_block): Initialize variable `blocknum'.

        * dbxout.h (dbxout_init, dbxout_finish,
        dbxout_start_new_source_file, dbxout_source_file, dbxout_types,
        dbxout_args, dbxout_source_line): Constify a char*.

        * dwarfout.c (dwarf_tag_name, dwarf_attr_name,
        dwarf_stack_op_name, dwarf_typemod_name, dwarf_fmt_byte_name,
        dwarf_fund_type_name, name_attribute, stmt_list_attribute,
        low_pc_attribute, high_pc_attribute, body_begin_attribute,
        body_end_attribute, comp_dir_attribute, sf_names_attribute,
        src_info_attribute, mac_info_attribute, producer_attribute,
        lookup_filename, generate_macinfo_entry, fundamental_type_code,
        dwarfout_line, dwarfout_start_new_source_file, dwarfout_define,
        dwarfout_undef): Constify a char*.
        (add_incomplete_type, retry_incomplete_types): Add prototypes.

        * dwarfout.h (dwarfout_define, dwarfout_undef,
        dwarfout_start_new_source_file, dwarfout_line): Constify a char*.

1999-10-25  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (MIPS_ISA_DEFAULT): Insure it's defined.
        (MULTILIB_ISA_DEFAULT): New.
        (MULTILIB_DEFAULTS): Use it.
        * config/mips/mips.c (): Remove the now unnecessary definition
        of MIPS_ISA_DEFAULT.
        * config/mips/elf64.h (MULTILIB_DEFAULTS): Remove the now
        unnecessary definition.

Mon Oct 25 22:08:35 1999  Richard Earnshaw (rearnsha@arm.com)

        * arm.md (pic_load_addr): Add constraints to operand 1.

1999-10-25  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/genfixes:  Provide a means for specifying -D options to
        AutoGen

Mon Oct 25 00:42:35 1999  Jeffrey A Law  (law@cygnus.com)

        * arm.c (arm_override_options): Correct initialization of
        arm_fast_multiply, arm_arch4, arm_arch5, arm_ld_sched,
        arm_is_strong, and arm_is_6_or_7.

        * loop.c (note_set_pseudo_multiple_uses_retval): New variable.
        (note_set_pseudo_multiple_uses): New function.
        (check_dbra_loop): Use not_set_pseudo_multiple_uses to determine
        if a pseudo set in the loop exit is used elsewhere.

Sun Oct 24 20:52:40 1999  Mark Mitchell  <mark@codesourcery.com>

        * i386.md (mulsi3): Tweak to work with SCO OSR5 COFF assembler.

Sun Oct 24 21:02:46 1999  Richard Henderson  <rth@cygnus.com>

        * i386.md (*lea_0): Collapse addsi_0, addsi_lea_[123] into
        a single load-address pattern.

Sun Oct 24 19:33:24 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * haifa-sched.c (schedule_insns): Don't assign LUIDs differently
        depending on whether or not line-number notes are present.

Sun Oct 24 20:29:59 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cccp.c (progname, file_buf, default_include, include_file,
        macrodef, definition, hashval, wchar_type, user_label_prefix,
        directive, out_fname, if_stack, safe_write, index0, get_lintcmd,
        expand_to_temp_buffer, is_system_include, base_name,
        absolute_filename, read_name_map, open_include_file,
        record_control_macro, check_precompiled, check_preconditions,
        pcfinclude, pass_thru_directive, create_definition,
        check_macro_name, comp_def_part, collect_expansion,
        check_assertion, read_token_list, assertion_install,
        assertion_lookup, eval_if_expression, conditional_skip,
        validate_else, skip_quoted_string, quote_string, macarg1,
        error_from_errno, install, lookup, hashf, dump_defn_1,
        perror_with_name, pfatal_with_name, main, trigraph_pcp,
        check_white_space, rescan, handle_directive, monthnames,
        special_symbol, do_include, remap_include_file, write_output,
        arglist, do_assert, do_unassert, do_line, do_error, do_once,
        do_ident, do_sccs, do_xifdef, skip_if_group,
        output_line_directive, macroexpand, macarg, change_newlines,
        initialize_builtins, make_definition): Constify a char*.

        * pcp.h (stringdef): Likewise.

Sun Oct 24 13:29:28 1999  Richard Henderson  <rth@cygnus.com>

        * unroll.c (copy_loop_body): Examine SET_DEST of single_set
        not of pattern.

Sun Oct 24 13:14:20 1999  Graham  <grahams@rcp.co.uk>
                          Richard Henderson  <rth@cygnus.com>

        * alias.c: Include ggc.h.
        (reg_base_value, new_reg_base_value, reg_base_value_size): Make static.
        (record_set): Verify enough room in reg_base_value.
        (init_alias_analysis): Allocate reg_base_value with xcalloc.
        Register it as a GC root.
        (end_alias_analysis): Free reg_base_value.  Remove it as a GC root.
        * Makefile.in (alias.o): Depend on ggc.h.

        * unroll.c (unroll_loop): Verify the insn before a barrier
        is a JUMP_INSN before checking JUMP_LABEL.

Sun Oct 24 15:46:44 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips/bsd-5.h (ASM_OUTPUT_ASCII): Constify a char*.
        * mips/iris4.h (ASM_OUTPUT_ASCII): Likewise.
        * mips/mips-5.h (ASM_OUTPUT_ASCII): Likewise.
        * mips/mips.h (ASM_OUTPUT_ASCII): Likewise.
        * mips/svr3-5.h (ASM_OUTPUT_ASCII): Likewise.
        * mips/svr4-5.h (ASM_OUTPUT_ASCII): Likewise.

Sun Oct 24 15:35:43 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * output.h (ctors_section, dtors_section, bss_section): Prototype.

        * alpha/alpha-interix.h (text_section): Delete prototype.
        * alpha/elf.h (text_section): Likewise.
        * arm/linux-elf.h (text_section): Likewise.
        * arm/linux-telf.h (text_section): Likewise.
        * c4x/c4x.h (text_section): Likewise.
        * dsp16xx/dsp16xx.h (bss_section): Likewise.
        * elfos.h (text_section): Likewise.
        * i386/aix386ng.h (text_section): Likewise.
        * i386/i386-interix.h (text_section): Likewise.
        * i386/sco5.h (text_section): Likewise.
        * i386/svr3gas.h (text_section): Likewise.
        * nextstep.h (text_section): Likewise.
        * psos.h (text_section): Likewise.
        * ptx4.h (text_section): Likewise.
        * svr3.h (text_section): Likewise.
        * svr4.h (text_section, ctors_section, dtors_section): Likewise.

Sun Oct 24 15:20:59 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * final.c (peephole): Delete prototype.

        * gcse.c (process_insert_insn, pre_edge_insert): Add prototypes.
        (pre_insert_copies): Remove unused variable `bb'.

        * genrecog.c (debug_decision_0, debug_decision_list, main): Add
        prototypes.

        * output.h (peephole): Add prototype.

Sun Oct 24 11:35:30 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * config/mips/iris6.h (SUBTARGET_ASM_OPTIMIZING_SPEC): Define to
        -O0.

Sat Oct 23 21:13:00 1999  Mark Mitchell  <mark@codesourcery.com>

        * integrate.c (integrate_decl_tree): Tweak setting of DECL_CONTEXT
        for inlined declarations.

Fri Oct 22 18:05:43 1999  Jeffrey A Law  (law@cygnus.com)

        * arm.c (logical_binary_operator): New fucntion.
        * arm.h (logical_binary_operator): Declare it.
        (PREDICATE_CODES): Handle logical_binary_operator.
        * arm.md (anddi3, anddi_zesidi_di, anddi_sesdi_di): Use "#" for
        output constraints.  Add appropriate splitters.
        (anddi_notdi_di, anddi_notzesidi_di, anddi_notsesidi_di): Likewise.
        (iordi3, iordi_zesidi_di, iordi_sesidi_di): Likewise.
        (xordi3, xordi_zesidi_di, xordi_sesidi_di): Likewise.

Fri Oct 22 23:46:50 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * genoutput.c (struct operand_data): New elt eliminable.
        (output_operand_data): Write it.
        (scan_operands): Set it for MATCH_OPERAND, clear for other matchers.
        (compare_operands): Take it into account.
        * recog.h (struct insn_operand_data): New elt eliminable.
        * reload1.c (check_eliminable_occurrences, elimination_effects): New
        functions.
        (old_asm_operands_vec, new_asm_operands_vec): Delete.
        (eliminate_regs): Move code that detects changes to elimination
        target regs into new function elimination_effects.
        Delete one #if 0 block.
        Abort for USE, CLOBBER, ASM_OPERANDS and SET.
        (eliminate_regs_in_insn): Return immediately for USEs, CLOBBERs,
        ADDR_VECs, ADDR_DIFF_VECs and ASM_INPUTs.
        Only call eliminate_regs for real operands of the insn, not for parts
        of its structure or parts matched by things like match_operator.
        Use elimination_effects and check_eliminable_occurrences.  Use
        copy_insn to duplicate the pattern when not in the final pass.

Fri Oct 22 09:03:44 1999  Mark Mitchell  <mark@codesourcery.com>

        * i386.md: Add missing `y' modifiers to uses of fst, fstp, fld,
        and fld.

1999-10-22  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/README: document the "mach" machine matching test
        * fixinc/fixfixes.c: Implement the #else/#endif label fix
        * fixinc/fixtests.c: Implement the #else/#endif label test
        * fixinc/inclhack.def: utilize these tests and fixes
        * fixinc/inclhack.sh:  regen
        * fixinc/fixincl.x:  regen
        * fixinc/fixincl.sh:  regen

Thu Oct 21 20:37:19 1999  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (cse.o): Depend on hashtab.h, not splay-tree.h.  Also
        depend on ggc.h.

Thu Oct 21 20:30:19 1999  Matthias Klose  <doko@debian.org>

        * gcc.1: Document exit codes.

Thu Oct 21 12:49:05 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c: Include tm_p.h later, so everything we need is defined.
        * expr.c: Likewise.
        * function.c: Likewise.

        * except.c: Include tm_p.h.

        * sparc.c: Likewise.
        (dwarf2out_cfi_label): Don't prototype.
        (check_return_regs, epilogue_renumber,
        ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
        ultra_find_type, ultra_build_types_avail, ultra_flush_pipeline,
        ultra_rescan_pipeline_state, set_extends, ultra_code_from_mask,
        ultra_schedule_insn): Add static prototype.
        (data_segment_operand, text_segment_operand): Call itself with the
        proper number of arguments.
        (sparc_flat_save_restore, sparc_v8plus_shift): Constify a char*.

        * sparc.h: Move all declarations to sparc-protos.h.
        (SELECT_RTX_SECTION):  Pass a missing MODE argument to
        symbolic_operand.

        * sparc/sysv4.h (SELECT_RTX_SECTION): Likewise.

        * config/svr4.h (text_section, ctors_section, dtors_section): Add
        Prototypes.
        (ASM_OUTPUT_SECTION_NAME, UNIQUE_SECTION,
        ASM_FINISH_DECLARE_OBJECT, ASM_OUTPUT_LIMITED_STRING,
        ASM_OUTPUT_ASCII): Constify a char*.

        * sparc-protos.h: New file for sparc prototypes.

Thu Oct 21 12:23:40 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * function.c (record_insns, contains): Always declare and define.
        (record_insns): Mark with ATTRIBUTE_UNUSED.

Thu Oct 21 13:03:49 1999  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * config/arm/telf.h (ASM_OUTPUT_SECTION_NAME): Add %nobits option
        to .section when outputting a .bss section to deal with multiple
        .bss input sections (as happens with -fdata-sections)
        Also output %progbits, not @progbits so the assembler doesn't treat as
        a comment.
        * config/arm/unknown-elf.h (ASM_OUTPUT_SECTION_NAME): Likewise

        * config/arm/lib1funcs.asm (_call_via_rX): Allow compilation of
        thumb parts even when building with non-thumb CPUs, by forcing
        thumb mode.

Wed Oct 20 22:57:58 1999  Jeffrey A Law  (law@cygnus.com)

        * sparc.md (movsf_const_intreg): If splitting, length must be > 1.
        (movdf_const_intreg_sp64): Similarly.

        * local-alloc.c (update_equiv_regs): Check the correct insn
        for pre-existing REG_EQUIV notes.

Wed Oct 20 20:41:46 1999  Mark Mitchell  <mark@codesourcery.com>

        * cse.c (cse_end_of_basic_block): Don't return the end of a basic
        block reached by a branch if we're not going to actually process
        this block.

Wed Oct 20 15:18:42 1999  Jim Wilson  <wilson@cygnus.com>

        * integrate.c (integrate_decl_tree): Set DECL_CONTEXT to 0 if this is
        a local extern function declaration.

Wed Oct 20 13:56:01 1999  Richard Henderson  <rth@cygnus.com>

        * i386.c (ix86_expand_prologue): Properly wrap USE around
        reg for CALL_INSN_FUNCTION_USAGE.

Thu Oct 14 18:51:37 1999  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.md (movdf_internal1a): Allow floating-point
        move between GP_REGs.

Wed Oct 20 15:36:11 1999  Andrew Haley  <aph@cygnus.com>

        * config/arm/thumb.h (GO_IF_LEGITIMATE_ADDRESS): Take account of
        the mode size when finding out if an offset is legal.

Wed Oct 20 06:26:58 1999  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (PROP_*): Move constants from ...
        * flow.c: ... here.
        (compute_bb_for_insn): Free the array before reallocating.
        (update_life_info): New arg PROP_FLAGS; pass on to propagate_block.
        (allocate_reg_life_data): Reset all reg variables collected by
        propagate_block.
        (get_block_head_tail): Don't convert from bb to block.
        (get_bb_head_tail): New.  Update all callers of get_block_head_tail.
        (find_insn_reg_weight): Take block not bb.
        (schedule_block): Don't set block num for moved insns.
        (schedule_region): Don't update_life_info or find_insn_reg_weight.
        (schedule_insns): Do it here instead.
        * combine.c (combine_instructions): Invoke compute_bb_for_insn
        before update_life_info.
        * recog.c (split_all_insns, peephole2_optimize): Update for
        new arg to update_life_info.
        * rtlanal.c (remove_note): Cope with NULL note.
        * toplev.c (rest_of_compilation): Don't invoke recompute_reg_usage
        if we did sched1.

Wed Oct 20 10:46:41 1999  Richard Earnshaw (rearnsha@arm.com)

        * jump.c (jump_optimize_1): More accurately detect casesi insns.

        * flow.c (merge_blocks_move_predecessor_nojumps): Re-order the basic
        block records so that merge_blocks_nomove will clean up correctly.
        (split_edge): Handle casesi insns.

        * gcc-page.c: Try MAP_ANON if we don't have MAP_ANONYMOUS.

Tue Oct 19 23:43:50 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (call, call_value): Do not emit a blockage after restoring
        the PIC register.

Tue Oct 19 17:22:39 1999  Mark Mitchell  <mark@codesourcery.com>

        * c-typeck.c (c_expand_asm_operands): Fix typo.

Tue Oct 19 18:42:58 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * arm.c (fpu_rhs_operand): Verify modes.
        (fpu_add_operand): Likewise.
        (di_operand): Likewise.
        (soft_df_operand): Likewise.

Tue Oct 19 15:26:11 1999  Richard Earnshaw  (rearnsha@arm.com)

        * arm.c (arm_return_in_memory): APCS rules state that the elements
        of a structure returned in a register must be 'integer-like'.

1999-10-19  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/Makefile.in: Change the generation rules to run `genfixes'
        in the source tree when the generated targets are out of date
        * fixinc/genfixes: Alter it to run individual fixes for make.
        * fixinc/README: rewrite
        * fixinc/inclhack.def: moved initial comments to README

Tue Oct 19 14:01:34 1999  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (main): Do not generate an error message if an
        unrecognised command line switch is recognisable by another
        language.  If extra_warnings are enabled, then generate a
        warning message instead.

Tue Oct 19 11:41:12 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * c-pragma.h (PRAGMA_INSERT_ATTRIBUTES): Delete macro.
        (insert_pack_attributes): Delete prototype.

        * c-pragma.c (default_alignment): New static variable.
        (push_alignment): Initialize to current effective alignment.
        (pop_alignment): Use to set new alignment.
        (insert_pack_attributes): Delete function.
        (handle_pragma_token): Set default_alignment as well each time
        a #pragma pack(<n>) is encountered.

Tue Oct 19 02:03:00 1999  Jeffrey A Law  (law@cygnus.com)

        * reg-stack.c (stack_result): Aggregates are not returned in
        stack registers.

Tue Oct 19 01:26:48 1999  Alasdair Baird <alasdair@wildcat.demon.co.uk>

        * fold-const.c (fold): Fix thinko in x+(-0) -> x transformation.

Mon Oct 18 15:19:41 1999  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (set_block_num): Declare.
        * flow.c (update_life_info): Don't call compute_bb_for_insn
        or free_basic_block_vars.
        * haifa-sched.c (remove_dependence): Conditionalize on HAVE_cc0.
        (insn_orig_block): Remove.
        (INSN_BLOCK): Remove.  Update all callers to use BLOCK_NUM.
        (schedule_block): Keep BLOCK_NUM up-to-date.
        (schedule_insns): Use compute_bb_for_insn.
        * recog.c (split_all_insns): Likewise.
        (peephole2_optimize): Likewise.

Mon Oct 18 18:50:51 1999  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.h (INITIAL_FRAME_POINTER_OFFSET): Add one word
        if the pic register is used.

Mon Oct 18 02:38:46 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-decl.c (pushdecl): Use TYPE_CONTEXT rather than TREE_PERMANENT.
        (finish_decl): Duplicate test for TREE_ASM_WRITTEN in else branch of
        if that tests TREE_PERMANENT.

Mon Oct 18 01:41:35 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (invalidate_for_call): Do not remove memory references from
        the table here.  It's handled elsewhere.

        * haifa-sched.c (add_dependence): Protect references to the
        true dependency cache with #ifdef INSN_SCHEDULING.
        (remove_dependence): Similarly.

        * mn10200.md (outline_epilogue_jump): Embed a (return) to indicate
        to the cfg code that this is a return instruction.
        * mn10300.md (return_internal): Similarly.

        * combine.c (get_last_value): If the last set of a register
        is after subst_low_cuid, then we can not use it to determine
        the register's last value.

Sun Oct 17 11:02:52 1999  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in: Back out previous change.

Sun Oct 17 15:22:50 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (move_operand): Reject (lo_sum (reg) (unspec ...)).

        * haifa-sched.c (add_dependence): Only check/update the cache
        if it exists.
        (remove_dependence): Likewise.
        (schedule_insns): Only create the true_dependency_cache if the
        average number of instructions in a basic block is very large.

Sun Oct 17 11:02:52 1999  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (ggc-common.o): Depend on genrtl.h.
        (ggc-simple.o): Likewise.
        (ggc-page.o): Likewise.

Sun Oct 17 02:09:50 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * basic-block.h (pre_edge_lcm, pre_edge_rev_lcm, compute_available):
        Prototype for exported functions.
        (pre_lcm, pre_rev_lcm): Remove prototypes.
        * gcse.c (compute_ae_kill): Add ae_gen and ae_kill as parameters.
        (compute_available): Move to lcm.c, and change parameter order.
        (one_classic_gcse_pass): Call compute_ae_kill with parameters.
        (pre_insert, s_preds, s_succs, num_preds, num_succs): Delete.
        (gcse_main): No longer call compute_preds_succs.  Rebuild the
        set table after reach pre pass.
        (pre_insert_map, pre_delete_map, edge_list): New.
        (alloc_pre_mem): Allocate edge vectors.
        (free_pre_mem): Delete edge vectors.
        (compute_pre_data): Call new edge based lcm routines.
        (process_insert_insn): New function.
        (insert_insn_end_bb): Use it.
        (pre_edge_insert): New function.
        (pre_insert_copy_insn): Formatting fixes.  Update BLOCK_END as
        needed.
        (pre_insert_copies): Revamp using new edge based lcm outputs.
        (pre_delete): Likewise.
        (one_pre_gcse_pass): Insert & remove fake edges to the exit
        block.
        (compute_code_hoist_vbeinout): New new edge based routines.
        * lcm.c: Remove all the old LCM functions.  Replace with new ones
        that work with the new cfg datastructures and work with edges
        instead of blocks.

Sun Oct 17 00:44:17 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload.h (struct reload): Add new fields "mode" and "nregs".
        * reload1.c: Change all occurrences of reload_mode and reload_nregs
        to reference the "mode" and "nregs" field within struct reload.

Sat Oct 16 21:50:28 1999  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (true_dependency_cache): New.
        (add_dependence): Use the true dependency cache to avoid expensive
        walks down the LOG_LINKS dependency list.  Add entries to the
        cache as necessary.
        (remove_dependence): Remove entries from the true dependency cache
        as needed.
        (schedule_insns): Allocate and initialize and free the true
        dependency cache.

        * haifa-sched.c (schedule_insns): Do not remove inter-block
        dependencies anymore.

Sat Oct 16 11:19:52 1999  Richard Henderson  <rth@cygnus.com>

        * i386/t-cygwin (winnt.o): Depend on RTL_H and TREE_H.
        * i386/t-winnt: Likewise.

Sat Oct 16 11:11:54 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-page.c (init_ggc): Work around SunOS unaligned mmap bug.

1999-10-16  Manfred Hollstein  <mhollstein@cygnus.com>

        * Makefile.in (LANGUAGES): Omit "proto".
        (clean): Remove stale comment about removing unprotoize.c.

Sat Oct 16 11:29:14 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * protoize.c (safe_read, safe_write): Avoid the gcc extension of
        using arithmetic on void pointers.

Sat Oct 16 02:48:22 1999  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (compute_block_forward_dependencies): Only check
        for notes, deleted insns and duplicates if ENABLE_CHECKING is defined.

Sat Oct 16 00:07:01 1999  Richard Henderson  <rth@cygnus.com>

        * gcse.c (hash_expr_1): Add in MEM_ALIAS_SET.
        (expr_equiv_p): Reject memories with different alias sets.

Fri Oct 15 15:17:29 1999  Greg McGary  <gkm@gnu.org>

        * flags.h (flag_bounds_check, flag_bounded_pointers): New extern decls.
        * toplev.c (flag_bounds_check, flag_bounded_pointers): New flags.
        (f_options): Add "bounded-pointers" and "bounds-check" entries.
        * c-lang.c (lang_init_options): Set flag_bounds_check as "unspecified".
        (lang_init): Set default for flag_bounds_check if still "unspecified".

Sat Oct 16 13:42:29 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (HF mode patterns):  Add missing modes.

Sat Oct 16 13:37:46 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (movstrqi_small): Utilise parallel move
        instructions.

Sat Oct 16 13:26:47 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*db_noclobber,
        *decrement_and_branch_until_zero_noclobber): New patterns and
        associated splitters.

Sat Oct 16 13:13:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (parallel instruction patterns): Rework
        constraints to keep reload happy.

Sat Oct 16 13:03:16 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (*absqi2_noclobber, *negqi2_noclobber,
        *one_cmplqi2_noclobber, *subqi3_noclobber, *andqi3_255_noclobber,
        *andqi3_65535_noclobber, *andnqi3_noclobber, *xorqi3_noclobber):
        Add new patterns and associated post-reload splitters.

Sat Oct 16 12:42:12 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_emit_libcall): Use ggc_alloc_string.

Sat Oct 16 12:34:44 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_rptb_insert): Emit rpts_top pattern
        if appropriate.
        * config/c4x/c4x.md (rpts_top): New pattern and splitter.

Sat Oct 16 12:26:30 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (src_operand):  Check SYMBOL_REF and LABEL_REF
        memory mode.

Fri Oct 15 17:02:09 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (move_operand): Rely on memory_address_p to determine the
        validity of non-indexed memory addresses.
        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Allow LO_SUM with a symbolic
        operand in DFmode and SFmode when generating PA2.0 code.

Fri Oct 15 14:25:19 1999  Richard Henderson  <rth@cygnus.com>

        * print-rtl.c (print_rtx): Limit last 'u' change to LABEL_REF.

Fri Oct 15 13:48:45 1999  Richard Henderson  <rth@cygnus.com>

        * mips.c (function_prologue): Fix argument types.
        * mips.md (casesi): Use emit_jump_insn for casesi_internal.
        (casesi_internal): Write to the scratch register.

1999-10-15 11:16 -0700  Zack Weinberg  <zack@bitmover.com>

        * cppexp.c (cpp_parse_escape): Make static.  Change second arg
        to U_CHAR **.
        (parse_charconst): Delete unnecessary cast when calling
        cpp_parse_escape.
        (cpplib.h): Kill prototype of cpp_parse_escape.

Fri Oct 15 11:02:46 1999  Richard Henderson  <rth@cygnus.com>

        Based on patch from Michael Gschwind <mikeg@watson.ibm.com>:
        * unroll.c (unroll_loop): Cast return value of alloca.
        * i370/i370.c: Include function.h and toplev.h.
        (i370_label_scan): Remove c++ commented abort.
        * i370/i370.h (HANDLE_PRAGMA): Takes three arguments.
        (ASM_OUTPUT_LABELREF): Fix TOUPPER/else broken 16 Sept.
        * i370/xm-i370.h (HOST_BITS_PER_LONGLONG): Define.
        * i370/xm-mvs.h, i370/xm-oe.h: Likewise.

Fri Oct 15 03:01:01 1999  Loren Rittle  <ljrittle@acm.org>

        * config/t-freebsd: Do not override USER_H.
        * ginclude/stddef.h: Generalize check for _MACHINE_ANSI_H_.

Fri Oct 15 02:37:28 1999  Alastair J. Houghton <ajh8@doc.ic.ac.uk>
                          Mumit Khan  <khan@xraylith.wisc.edu>

        * c-parse.in (component_decl): Support anonymous struct/union.
        (%expect): Update.
        * c-parse.y: Regenerate.
        * c-parse.c: Likewise.
        * objc/objc-parse.y: Likewise.
        * objc/objc-parse.c: Likewise.
        * c-decl.c (finish_struct): Don't sort the fields.
        (field_decl_cmp): Delete unused function.

Fri Oct 15 01:20:52 1999  Richard Henderson  <rth@cygnus.com>

        * sparc.md (movsf_const_intreg): Revert last constraint change.
        (movdf_const_intreg_sp32): Likewise.

Fri Oct 15 01:47:51 1999  Vladimir Makarov  <vmakarov@loony.cygnus.com>

        * cse.c: Include hashtab.h instead of splay-tree.h
        (struct cse_reg_info): No longer use variant union.  Add new
        field "regno".  All references changed to avoid union.
        (cse_reg_info_used_list, cse_reg_info_used_list_end): New variables.
        (free_cse_reg_info): Remove.
        (hash_cse_reg_info, cse_reg_info_equal_p): New functions.
        (get_cse_reg_info): Revamp to use expandable hash tables instead
        of splay trees.  Initialize new fields in cse_reg_info structure.
        (new_basic_block): Similarly.

Thu Oct 14 23:51:56 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (message_with_line): Prototype.
        (validate_pattern): Pass along the set for the dest, not a flag.
        Fix non-lvalue message.  Don't warn for VOIDmode SET_DEST of CALL.
        Check for PC/CC0 as sources.
        (nodes_identical): Check for children position match before
        allowing the combination.

        * rtl.c (read_rtx): Track line number across \\\n.

Thu Oct 14 23:50:25 1999  Richard Henderson  <rth@cygnus.com>

        * mips.h (SPECIAL_MODE_PREDICATES): New.
        * mips.md (*) Use nonimmediate_operand not general_operand for outputs.
        (movdi+1, movsi+1): Add output reload constraint.
        (casesi_internal): Likewise.  Fix commentary.
        (return_internal): Use pmode_register_operand.

Thu Oct 14 23:19:34 1999  Richard Henderson  <rth@cygnus.com>

        * 1750a.md (movstrqi): Add missing output reload constraint.
        (call_value): Likewise.
        * a29k.md (cpxxx patterns): Add missing match_operator mode.
        (jmpfdec): Add missing inout reload constraint.
        * elxsi.md (addsi patterns): Add missing output reload constraint.
        (move from sp): Use @ alternates.
        (call_value): No constraint on output.
        * fr30.md (movsi_pop): Add missing output reload constraint.
        (movsf_constant_store): Likewise.
        (splits): Remove constraints.
        (subsi3): Add missing mode.
        * i370.md (cmpstrsi+1): Add missing output reload constraint.
        (call_value): Likewise.
        * i960.md (cmpinc/cmpdec patterns): Add inout reload constraints.
        * m32r.h (PREDICATE_CODES): Add seth_add3_operand.
        * m32r.md (movsicc_internal): Add output reload constraint.
        (movstrsi_internal): Add inout reload constraints.
        * m88k.h (reg_names): Don't declare.
        (SPECIAL_MODE_PREDICATES): New.
        * m88k.md (*): Use register_operand not reg_or_0_operand
        on destinations.
        * mn10200.h (PREDICATE_CODES): New.
        * ns32k.md (ffs pattern): Add output reload constraint.
        * pdp11.md (sob pattern): Add inout reload constraint.
        * sh.md (splits): Remove constraints.
        (indirect_jump_scratch, fpu_switch): Add output reload constraint.
        * v850.md (pattern_is_ok_for_epilogue): Likewise.
        * vax.md (jgequ pattern): Add inout reload constraint.

Fri Oct 15 00:05:00 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (djgpp): Revert previous patch.
        * configure: Rebuit.
        * config/i386/djgpp.h: Revert previous patch.

Fri Oct 15 00:00:24 1999  Loren J. Rittle <ljrittle@acm.org>

        * fixinc/inclhack.def: Restore patch lost during last merge of
        "no_bogosity" branch.
        * fixinc/inclhack.sh, fixinc/fixincl.x: Rebuilt.

Thu Oct 14 23:57:56 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * fixincludes: Add a HPUX 11 fix for inttypes.h.
        * fixinc/inclhack.def: Same.
        * fixinc/inclhack.sh, fixinc/fixincl.sh, fixinc/fixincl.x: Regenerate.

Thu Oct 14 22:51:55 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (GO_IF_LEGITIMATE_SIMPLE_ADDRESS): Accept ADDRESSOF
        as the base of a PLUS.

Fri Oct 15 18:36:07 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md:  Define mode for remaining unspec operators.
        * config/c4x/c4x.c (dst_operand):  Use nonimmediate_operand.

Thu Oct 14 22:14:23 1999  Richard Henderson  <rth@cygnus.com>

        * pa.md (post_stw+1): Use pmode_register_operand.
        (dcacheflush, icacheflush): Likewise.

        * i386.md (movstricthi_1): Allow r/r.

Thu Oct 14 19:44:08 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * fold-const.c (fold): Convert (or (not arg0) (not arg1))
        to (not (and (arg0) (arg1))). Similary for and.

        * fold-const.c (fold): Move bit_rotate code to the EXPR_PLUS case,
        fallthrough to associate code.
        Convert XOR to OR in code like (a&c1)^(a&c2) where c1 and c2 don't have
        bits in common.

        * combine.c (simplify_logical): Convert XOR to IOR if operands have
        no bits in common; remove XOR to ROTATE conversion.

Fri Oct 15 17:40:11 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (c4x_va_start, c4x_va_arg): Declare.

Fri Oct 15 17:27:17 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (dst_operand): New.
        (PREDICATE_CODES): Update.
        * config/c4x/c4x.h (dst_operand): Declare it.
        * config/c4x/c4x.md:  Define mode for each unspec usage.
        (move patterns):  Use dst_operand predicate instead of src_operand.
        (movqi_update, movqf_update): Delete.

Thu Oct 14 18:48:54 1999  Richard Henderson  <rth@cygnus.com>

        * recog.c (pmode_register_operand): New.
        * recog.h: Declare it.
        * genrecog.c (pred_codes): Likewise.
        (special_mode_pred_table): Likewise.
        (validate_pattern): Don't warn no mode for address_operand.

        * print-rtl.c (print_rtx) [LABEL_REF]: Only do full subexpression
        if the operand is not insn-like.

Thu Oct 14 19:38:42 1999  Jeffrey A Law  (law@cygnus.com)
                          Sylvian Pion <Sylvain.Pion@sophia.inria.fr>

        * fold-const.c (fold): Handle more simplifications allowed by IEEE.

Thu Oct 14 17:30:14 1999  Richard Henderson  <rth@cygnus.com>

        * sparc.md (*): Use {nonimmediate,register}_operand as appropriate
        instead of general_operand in a SET_DEST.  Use const_double_operand
        instead of an explicit test against CONST_DOUBLE.
        (movsf_const_lo): Add missing register mode.
        (goto_handler_and_restore): Add auxiliary test for Pmode.
        (flush): Adjust to use address_operand.
        (return_sf_no_fpu): Add missing output constraint.

Thu Oct 14 17:21:26 1999  Richard Henderson  <rth@cygnus.com>

        * rs6000.md (call_value_indirect_aix32): Use wildcard match_operand
        for call return value.
        (call_value_indirect_aix64, call_value_indirect_nt): Likewise.

Thu Oct 14 13:54:25 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (main): Only warn about options for other languages.
        * collect2.c (main): Pass -w to sub-gcc.

Thu Oct 14 16:27:50 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_block): Add call-clobbered registers to
        significant too.

        * flow.c (propagate_block): Use free_EXPR_LIST_list instead of
        zapping mem_set_list.
        (invalidate_mems_from_autoinc): Use free_EXPR_LIST_node.
        (mark_set_1, mark_used_regs): Likewise.

Thu Oct 14 10:51:49 1999  Richard Henderson  <rth@cygnus.com>

        * m68k.md (zero_extendsidi2): Add missing output reload constraint.

Wed Oct 13 00:09:18 1999  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * invoke.texi: Label -Wbad-function-cast, -Wmissing-prototypes,
        -Wnested-externs, -Wstrict-prototypes, and -Wtraditional as C only
        options. Also add a new item "C-only Warning Options" to the
        option summary.

1999-10-14  Gavin Romig-Koch  <gavin@cygnus.com>

        * libgcc2.c (__do_global_dtors): Protect __deregister_frame_info
        from multiple calls.

Thu Oct 14 04:54:54 1999  Richard Henderson  <rth@cygnus.com>

        * i386.md (call value patterns): Move to the end of the file.
        (prologue_set_got, prologue_get_pc): Use register_operand for op 0.

1999-10-14 Mark Elbrecht <snowball3@bigfoot.com>

        * configure.in (djgpp configuration): Define extra_objects..
        * configure: Rebuilt.
        * config/i386/djgpp.h (CTORS_SECTION_ASM_OP): Define.
        (DTORS_SECTION_ASM_OP): Define.
        (INIT_SECTION_ASM_OP): Define.
        (FINI_SECTION_ASM_OP): Define.
        (DATA_SECTION_ASM_OP): Define.
        (TEXT_SECTION_ASM_OP): Define.
        (EH_FRAME_SECTION_ASM_OP): Define.
        (LINK_COMMAND_SPEC): Remove -Tdjgpp.djl.
        (STARTFILE_SPEC): Add crtbegin.o.
        (ENDFILE_SPEC): Define and add crtend.o. Move argument -Tdjgpp.djl
        to here from LINK_COMMAND_SPEC.
        (DO_GLOBAL_CTORS_BODY): Define.
        (CRTSTUFF_USE_FINI_SECTION): Define
        (HAS_INIT_SECTION): Delete.

Thu Oct 14 05:08:14 1999  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (all.cross): Depend on xcpp$(exeext).

Thu Oct 14 04:00:40 1999  Richard Henderson  <rth@cygnus.com>

        * pa.h (PREDICATE_CODES): New.

        * genrecog.c (validate_pattern): Condense the destination
        non-lvalue message.

Thu Oct 14 03:23:08 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (call-1): Supply missing mode for operator.
        (*): Add missing output reload constraints.  Remove constraints
        from define_splits.

        * i386.h (SPECIAL_MODE_PREDICATES): New.
        * i386.md (movstricthi_1): Use nonimmediate_operand for op 0.
        (movqi_1, movdi_1, movdi_2, some splits): Likewise.
        (addsi_lea_3): Add missing mode for op 3.
        (prologue_set_got, prologue_get_pc): Add missing modes.
        (*) Add missing output reload constraints.

Thu Oct 14 03:59:57 1999  Stephane Carrez  <stcarrez@worldnet.fr>

        * stor-layout.c (layout_union): Use HOST_WIDE_INT for const_size;
        check for member bit-size overflow and use var_size if it occurs.
        (layout_record): Use bitsize_int() to define the type size in bits.
        Likewise for computation and assignment to DECL_FIELD_BITPOS.
        (layout_decl): Likewise when assigning to DECL_SIZE.

Thu Oct 14 02:57:05 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (validate_pattern): Typo last change.  Verify
        that output operands have output reloads.

Thu Oct 14 01:49:54 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (special_mode_pred_table): New.
        (NUM_SPECIAL_MODE_PREDS): New.
        (find_operand): New.
        (validate_pattern): New argument `insn'.  Warn for assignment to
        any predicate accepting non-lvalues.  Conditionaly warn for
        match_operand without a mode.  Try much harder to match source
        and destination modes on a set.
        * tm.texi (SPECIAL_MODE_PREDICATES): Document.

Thu Oct 14 02:54:13 1999  Jeffrey A Law  (law@cygnus.com)

        * fold-const.c (fold): Detect rotates built from BIT_XOR_EXPRs.

Thu Oct 14 02:18:19 1999  Marc Espie <espie@cvs.openbsd.org>

        * combine.c (simplify_logical): Recognize xor pattern that encodes
        rotation.

Wed Oct 13 23:23:45 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (expand_block_move): Use INTVAL, not XINT to access
        alignment.

Wed Oct 13 21:47:18 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-page.c (MAP_FAILED): Provide default.

Wed Oct 13 21:41:59 1999  Richard Henderson  <rth@cygnus.com>

        * sparc.c (symbolic_operand): Verify mode; don't accept CONST_DOUBLE.
        * sparc.h (PREDICATE_CODES): Update.

Wed Oct 13 21:18:17 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (some_ni_operand): New.
        * alpha-protos.h: Declare it.
        * alpha.h (PREDICATE_CODES): Update.
        * alpha.md (sXaddq reload insns): Use some_ni_operand
        for SET_DEST instead of some_operand.

Wed Oct 13 21:04:45 1999  Richard Henderson  <rth@cygnus.com>
                          Jim Wilson  <wilson@cygnus.com>

        * genrecog.c (maybe_both_true_2): Don't compare modes of
        two DT_pred tests.
        (process_tree): Elide peephole2_insns.  Invoke simplify_tests
        after find_afterward.
        (debug_decision_1): Dump next and afterward codes.

Wed Oct 13 20:35:16 1999  Richard Henderson  <rth@cygnus.com>

        * rtl.c (dump_and_abort): Remove.
        (fatal_with_file_and_line): New.
        (fatal_expected_char): New.
        (read_rtx_lineno, read_rtx_filename): New.
        (read_skip_spaces): Track line number.
        (read_name): Use fatal_with_file_and_line.
        (read_rtx): Use fatal_expected_char.  Track line number.
        * rtl.h (read_rtx_filename, read_rtx_lineno): Declare.

        * print-rtl.c (print_rtx): Don't special case LABEL_REF argument
        if it isn't a CODE_LABEL.

        * genattr.c (main): Set read_rtx_filename.
        * genattrtab.c (main): Likewise.
        * gencodes.c (main): Likewise.
        * genconfig.c (main): Likewise.
        * genemit.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genflags.c (main): Likewise.
        * genopinit.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genpeep.c (main): Likewise.

        * genrecog.c (decision_test.u.insn): Add `lineno'.
        (pattern_lineno, error_count): New variables.
        (message_with_line): New.
        (add_to_sequence): Break out checking code to ...
        (validate_pattern): ... here.  Detect SET_DEST matching CONST_INT.
        (merge_insn): Use message_with_line.
        (make_insn_sequence): Use validate_pattern.  Record insn lineno.
        (main): Set read_rtx_filename, pattern_lineno.  Exit early on error.

Wed Oct 13 22:01:35 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * expr.c (store_constructor): Clear union if constructor is empty.

Wed Oct 13 15:19:04 1999  Jim Wilson  <wilson@cygnus.com>

        * config/rs6000/sysv4.h (CC1_SPEC): Fix errors from Jan 19 change.
        Add !endian checks.  Change %{...} to %(...).

Wed Oct 13 13:30:34 1999  Richard Henderson  <rth@cygnus.com>

        * i386.md (*addsi3_cc): Renamed from addcsi3.
        (*addsi3_carry): Renamed from addxsi3.
        (*subsi3_cc): Renamed from subcsi3.
        (*subsi3_carry): Renamed from subxsi3.
        (*xorqi_cc_1): Renamed from xorcqi_1.
        (xorqi_cc_ext_1): Renamed from xorcqi_ext_1.
        * i386.c (ix86_expand_fp_compare): Update for xorqi_cc_ext_1.

Wed Oct 13 13:10:46 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (ggc-common.o): Depend on RTL_H not RTL_BASE_H.
        (ggc-simple.o, ggc-page.o, ggc-none.o, ggc-callbacks.o): Likewise.

1999-10-13  Brendan Kehoe  <brendan@cygnus.com>

        * regmove.c (optimize_reg_copy_3): Make sure P is non-nil as we
        climb up the chain of insns.

Wed Oct 13 10:20:58 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (write_subroutine): Careful for null trees.
        (process_tree): Don't elide empty functions.

Wed Oct 13 10:07:54 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (genrtl.o): Depend on ggc.h.
        * configure.in (valloc): Probe for it.
        (with-gc): Use ggc-page if valloc present.
        * ggc-common.c (ggc_mark_rtx_children): Use ggc_mark_if_gcable.
        (ggc_mark_rtvec_children): New from corpse of ggc_mark_rtvec.
        (ggc_alloc_string): Moved from ggc-page.c.
        * ggc-none.c (ggc_alloc_obj): New.
        (ggc_alloc_rtx, ggc_alloc_rtvec): Remove.
        * ggc-page.c (sys/mman.h): Only include if HAVE_MMAP.
        (struct globals): Likewise for dev_zero_fd.
        (init_ggc): Likewise for it's initialization.
        (ggc_allocated_p): Move careful dereference from ...
        (ggc_lookup_page_table): ... here.  Delete.
        (lookup_page_table_entry): Don't use ggc_lookup_page_table.
        (alloc_anon): Use valloc if no mmap.
        (release_pages): Use free if using valloc.
        (ggc_alloc_obj): Renamed from alloc_obj.
        (ggc_set_mark): Renamed from mark_obj.
        (ggc_mark_if_gcable): Renamed from ggc_mark_string_if_gcable.
        (ggc_alloc_rtx, ggc_alloc_rtvec): Delete.
        (ggc_alloc_tree, ggc_alloc_string, ggc_alloc): Delete.
        (ggc_set_mark_rtx, ggc_set_mark_rtvec): Delete.
        (ggc_set_mark_tree, ggc_mark_string, ggc_mark): Delete.
        (ggc_collect): Use fp printing instead of our own rounding.
        * ggc-simple.c (IS_MARKED, IGNORE_MARK): Delete.
        (GGC_STRING_MAGIC, GGC_STRING_MAGIC_MARK): Delete.
        (GGC_ANY_MAGIC, GGC_ANY_MAGIC_MARK): Delete.
        (struct ggc_rtx, struct ggc_rtvec, struct ggc_tree): Delete.
        (struct ggc_string, struct ggc_any): Delete.
        (offsetof): Provide default definition.
        (GGC_BALANCE, GGC_ALWAYS_COLLECT, GGC_ALWAYS_VERIFY): New.
        (PTR_KEY): New.
        (struct ggc_mem): New, from corpse of ggc_any.
        (struct ggc_status): Delete.
        (ggc_chain, ggc_allocated_strings, ggc_strings_used): Delete.
        (n_rtxs_collected, n_vecs_collected, n_trees_collected): Delete.
        (n_strings_collected, n_anys_collected): Delete.
        (ggc_alloc_rtx, ggc_alloc_rtvec, ggc_alloc_tree): Delete.
        (ggc_alloc_string, ggc_alloc): Delete.
        (ggc_free_rtx, ggc_free_rtvec, ggc_free_tree): Delete.
        (ggc_free_string, ggc_free_any): Delete.
        (ggc_set_mark_rtx, ggc_set_mark_rtvec, ggc_set_mark_tree): Delete.
        (ggc_compare_addresses, ggc_mark_string): Delete.
        (ggc_mark_string_if_gcable, ggc_mark): Delete.
        (search_data): Delete.
        (struct globals): New.
        (GGC_MIN_EXPAND_FOR_GC, GGC_MIN_LAST_ALLOCATED): New.
        (tree_insert, tree_lookup): New.
        (ggc_alloc_obj, ggc_set_mark, ggc_mark_if_gcable): New.
        (clear_marks, sweep_objs): New.
        (ggc_collect): Gut.  Use clear_marks, sweep_objs.
        (init_ggc): Set allocated_last_gc.
        (ggc_push_context): Gut.  Use G.context.
        (ggc_pop_context): Likewise.
        (ggc_pop_context_1): New.
        (debug_ggc_tree): New.
        (debug_ggc_balance, tally_leaves): New.
        * ggc.h (ggc_mark_rtvec, ggc_mark_string, ggc_mark): Remove decl.
        (ggc_mark_string_if_gcable): Remove decl.
        (ggc_mark_rtx, ggc_mark_tree): Use ggc_set_mark.
        (ggc_mark_rtvec_children): New.
        (ggc_mark_rtvec, ggc_mark_string, ggc_mark): New.
        (ggc_mark_if_gcable): New decl.
        (ggc_alloc_rtx, ggc_alloc_rtvec): Remove decl.
        (ggc_alloc_tree, ggc_alloc): Likewise.
        (ggc_set_mark_rtx, ggc_set_mark_rtvec, ggc_set_mark_tree): Likewise.
        (ggc_alloc_obj): New decl.
        (ggc_alloc_rtx, ggc_alloc_rtvec): New macros.
        (ggc_alloc_tree, ggc_alloc): Likewise.
        (ggc_set_mark): New decl.
        * rtl.h (struct rtx_def): Remove gc_mark.
        (struct rtvec_def): Likewise.
        * tree.h (struct tree_common): Likewise.

Wed Oct 13 01:44:29 1999  Carol LePage  <carolo@hal.com>

        * configure.in (sparc-hal-solaris2*): Fix xm_file, xm_defines,
        float_format and thread_file definitions.
        * configure: Rebuilt.

Wed Oct 13 09:25:03 1999  Niels Möller <nisse@lysator.liu.se>

        * extend.texi (Function Names): Document types of function names.

Wed Oct 13 00:45:04 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (reload_reg_free_for_value_p):  RELOAD_OTHER reloads with
        an earlyclobbered output conflict with RELOAD_INPUT reloads.

Tue Oct 12 23:28:28 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (BOOL_TYPE_SIZE): Don't use INT_TYPE_SIZE / CHAR_TYPE_SIZE.

Tue Oct 12 23:19:32 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (REGISTER_MOVE_COST): Change PR_REG to PR_REGS.

Tue Oct 12 17:09:38 1999  David Edelsohn  <edelsohn@gnu.org>

        * collect2.c (main): Do prelimnary link on AIX if rflag.

Tue Oct 12 09:45:19 1999  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * config/rs6000/eabi-ctors.c (__do_global_ctors): Run through
        __CTOR_LIST__ in opposite order, which is the correct order for sorted
        constructors.
        (__do_global_dtors): similarly for __DTOR_LIST__.

Fri Oct  8 19:46:03 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
                                Diego Novillo <dnovillo@cygnus.com>

        * config/sh/sh.h (REGISTER_MOVE_COST): Handle moves from T_REGS to
        FPUL_REGS.

Tue Oct 12 07:38:41 1999  Bruce Korb  <autogen@linuxbox.com>

        * fixincl/*: Merged "no_bogosity" branch
        * fixincl/fixlib.h: protect against doubly defining t_bool
        * fixincl/server.h: protect against doubly defining t_bool

Mon Oct 11 20:18:41 1999  Jim Wilson  <wilson@cygnus.com>

        * genoutput.c: Include toplev.h.

Mon Oct 11 18:56:14 1999  Jim Wilson  <wilson@cygnus.com>

        * config/sparc/liteelf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP):
        Undef.
        * configure.in (sparclite-*-elf, sparc86x-*-elf): Don't use libgloss.h.
        * configure: Regenerate.

Mon Oct 11 16:07:49 1999  Richard Henderson  <rth@cygnus.com>

        * gcse.c (delete_null_pointer_checks): Returns void.

Mon Oct 11 20:31:51 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * rtl.c (copy_rtx): Don't use accessor macros to copy fields.
        * emit-rtl.c (copy_insn_1): Likewise.

Mon Oct 11 13:29:06 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * config/mips/mips.c (mips_build_va_list): Correct
        TREE_CHAIN setting when hard-float.
        (mips_va_start): Use corrected setting.
        (mips_va_arg): Likewise.  Also pass a tree to build of
        POSTINCREMENT_EXPR rather than a naked 'int'.

Sun Oct 10 18:27:27 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc.h (ggc_push_context): Fix comment.
        (ggc_pop_context): Likewise.
        (mark_string_if_gcable): Likewise.
        * ggc-common.c (ggc_mark_rtx_children): Use
        ggc_mark_string_if_gcable.
        * ggc-page.c (ggc_lookup_page_table): New function.
        (ggc_allocated_p): Likewise.
        (mark_obj): Fix formatting.
        (ggc_mark_string_if_gcable): New function.
        * ggc-simple.c (ggc_allocated_strings): New variable.
        (ggc_strings_used): Likewise.
        (ggc_compare_addresses): New function.
        (ggc_pop_context): Pop the `any' memory too.
        (ggc_mark_string_if_gcable): New function.
        (ggc_collect): Initialize and tear down ggc_allocated_strings.

Sun Oct 10 20:05:21 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (movstrsi_?reg): Use preferred rD/rS = r5 form.
        (scc patterns): Disable most SImode variants if TARGET_POWERPC64.
        * rs6000.c (expand_block_move): Match movstrsi_?reg register
        changes.

Sun Oct 10 16:37:01 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (sched_reg_n_calls_crossed): Delete.
        (sched_reg_live_length, sched_reg_basic_block): Delete.
        (current_block_num, bb_live_regs, old_live_regs): Delete.
        (dead_notes, struct sometimes): Delete.
        (sched_note_set, birthing_insn_p): Delete.
        (adjust_priority): Gut useless reg lifetime code.
        (create_reg_dead_note, attach_deaths): Delete.
        (attach_deaths_insn, new_sometimes_live): Delete.
        (finish_sometimes_live): Delete.
        (find_pre_sched_live, find_post_sched_live): Delete.
        (update_reg_usage): Delete.
        (find_insn_reg_weight): New, from corpse of find_pre_sched_live.
        (schedule_insns): Delete reg lifetime code.
        (sched_analyze): Use REG_SAVE_NOTE to stuff NOTE_INSN notes away.
        (unlink_other_notes): Adjust REG_NOTE commentary.
        (reemit_notes): Use REG_SAVE_NOTE.
        (schedule_block): Likewise.
        (schedule_region): Allocate bitmap of blocks in region.  Use
        count_or_remove_death_notes.  Use update_life_info.

        * rtl.h (REG_SAVE_NOTE): New.
        * rtl.c (reg_note_name): Update.

Sun Oct 10 16:14:16 1999  Richard Henderson  <rth@cygnus.com>

        * combine.c (refresh_blocks, need_refresh): New.
        (combine_instructions): Allocate refresh_blocks.  Invoke
        update_life_info if needed.
        (distribute_notes): Mark refresh_blocks instead of installing
        USE insns.
        * flow.c (update_life_info): Remove notes if GLOBAL_RM_NOTES.
        * basic_block.h (enum update_life_extent): Add GLOBAL_RM_NOTES.

        * Makefile.in (recog.o): Depend on basic-block.h.

Sun Oct 10 12:03:21 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (add_to_sequence): Thinko last change: delete
        shadowing allow_const_int variable.

Sun Oct 10 08:40:00 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cppinit.c: Use HAVE_GCC_VERSION instead of explicitly testing
        __GNUC__ and __GNUC_MINOR__.

        * gansidecl.h: Likewise.

        * rtl.c: Likewise.

        * rtl.h: Likewise.

        * toplev.h: Likewise.

        * tree.c: Likewise.

        * tree.h: Likewise.

        * varray.c: Likewise.

        * varray.h: Likewise.

Sun Oct 10 13:28:48 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (find_and_verify_loops): When looking for a BARRIER, don't
        use one before a jump table.

        * rtl.def (ADDRESS): Change documentation to match reality.
        * md.texi: Don't document it.
        * gmicro.md (load address pattern): Use 'p' constraint, delete use
        of ADDRESS rtx.

        * emit-rtl.c (copy_insn_1): Make format_ptr a const char *.

Sun Oct 10 02:41:41 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (add_to_sequence): Move allow_const_int test outside
        known predicate block; default allow_const_int true.
        (debug_decision_list): New.

Sun Oct 10 00:43:08 1999  Richard Henderson  <rth@cygnus.com>

        * i386.h (CC1_SPEC): Typo -- use cc1_cpu.

Sat Oct  9 23:26:55 1999  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (gcse_main): Avoid global optimizations if we have a
        large number of basic blocks and the ratio of edges to blocks
        is high.
        (delete_null_pointer_checks): Likewise.

Sat Oct  9 23:16:01 1999  Ken Raeburn  <raeburn@mit.edu>

        * c-common.c (check_format_info): Warn if format string isn't a
        string literal.

Sat Oct  9 23:04:02 1999  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * configure.in (arm*-*-*): Don't let autoconf remove brackets
        * configure: regenerate

Sat Oct  9 13:15:53 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (extendsidi2): Turn into a splitter.  Allow f/f.
        If TARGET_FIX, allow r/f.  Remove cvtlq unspec pattern.
        (peepholes): Re-enable.

Sat Oct  9 12:18:16 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (flow.o): Depend on TREE_H.
        * basic-block.h (REG_SET_EQUAL_P): New.
        (XOR_REG_SET): New.
        (n_edges): Declare.
        (free_regset_vector): Remove declaration.
        (flow_delete_insn_chain): Declare.
        (enum update_life_extent): New.
        (update_life_info, count_or_remove_death_notes): Declare.
        * combine.c (distribute_notes) [REG_DEAD]: Stop search at bb->head.
        Verify register live at bb->global_live_at_start before adding USE.
        * flow.c (HAVE_epilogue, HAVE_prologue): Provide default.
        (CLEAN_ALLOCA): New.
        (n_edges): New.
        (PROP_*): New flags.
        (find_basic_blocks_1): Use alloc_EXPR_LIST.
        (clear_edges): Zero n_edges.
        (make_edge): Increment n_edges.
        (split_edge): Don't allocate bb->local_set.  Increment n_edges.
        (flow_delete_insn_chain): Export.
        (delete_block): Decrement n_edges.
        (merge_blocks_nomove): Likewise.
        (life_analysis): Give life_analysis_1 PROP flags.
        (verify_wide_reg_1, verify_wide_reg): New.
        (verify_local_live_at_start): New.
        (update_life_info): Rewrite to call into propogate_block.
        (mark_reg): New.
        (mark_regs_live_at_end): After reload, if epilogue as rtl,
        always mark stack pointer.  Conditionally mark PIC register.
        After reload, mark call-saved registers, return regsiters.
        (life_analysis_1): Accept PROP flags not remove_dead_code.
        Call mark_regs_live_at_end before zeroing regs_ever_live.
        Use calculate_global_regs_live.  Copy global_live_at_end before
        calling final propagate_block.  Zero reg_next_use on exit.
        (calculate_global_regs_live): New.
        (allocate_bb_life_data): Don't allocate bb->local_set.
        (init_regset_vector, free_regset_vector): Remove.
        (propagate_block): Accept FLAGS not FINAL or REMOVE_DEAD_CODE.
        Test flags before every operation.  Warn if prologue/epilogue insn
        would have been deleted.
        (mark_set_regs, mark_set_1): Accept and use FLAGS.
        Use alloc_EXPR_LIST.
        (mark_used_regs): Accept and use FLAGS, not FINAL.
        Remove special handling for RETURN.
        (try_pre_increment): Use alloc_EXPR_LIST.
        (dump_flow_info): Dump n_edges.
        (unlink_insn_chain, split_hard_reg_notes): Remove.
        (maybe_add_dead_note, maybe_add_dead_note_use): Remove.
        (find_insn_with_note, new_insn_dead_notes): Remove.
        (update_n_sets, sets_reg_or_subreg_1, sets_reg_or_subreg): Remove.
        (maybe_remove_dead_notes, prepend_reg_notes): Remove.
        (replace_insns): Remove.
        (count_or_remove_death_notes): New.
        (verify_flow_info): Abort on error after all checks.
        (remove_edge): Decrement n_edges.
        (remove_fake_edges): Tweak format.
        * haifa-sched.c (schedule_insns): Use split_all_insns.
        * output.h (update_life_info): Remove declaration.
        * recog.c (split_all_insns): From the corpse of split_block_insns,
        do the whole function block by block.  Use update_life_info.
        (recog_last_allowed_insn): New.
        (recog_next_insn): Mind it.
        (peephole2_optimize): Set it.  Walk backwards through blocks.
        Use update_life_info.
        * rtl.h (update_flow_info, replace_insns): Remove declarations.
        (split_all_insns): Declare.
        * toplev.c (rest_of_compilation): Thread prologue before flow2.
        Use split_all_insns.

        * i386.md (or -1 peep2s): Disable.

Fri Oct  8 17:49:08 1999  Richard Henderson  <rth@cygnus.com>

        * config/mips/mips.md (movstrsi+[123]) : Combine these into
        a single pattern.  Scrap the 'd' versions as unnecessary.

        * config/mips/mips.md (tablejump_internal3,tablejump_mips161,
        tablejump_mips162,tablejump_internal4): The operands to a
        label_ref must be VOIDmode.

Fri Oct  8 16:12:42 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (c-mbchar): Append, don't overwrite, `extra_c_flags'.

Fri Oct  8 11:58:34 1999  Richard Henderson  <rth@cygnus.com>

        * mips.c (mips_va_arg) [EABI]: Return addr_rtx.

Fri Oct  8 11:58:34 1999  Richard Henderson  <rth@cygnus.com>

        * lists.c (init_EXPR_INSN_LIST_cache): Don't need to zap the
        cache every function if ggc_p.

Fri Oct  8 18:46:11 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * jump.c (duplicate_loop_exit_test): Use copy_insn/copy_insn_1
        instead of copy_rtx.  Accept sequences that contain asm statements.
        * emit-rtl.c (copy_insn_1, copy_insn): New functions.
        (copy_insn_scratch_in, copy_insn_scratch_out, copy_insn_n_scratches,
        orig_asm_operands_vector, copy_asm_operands_vector,
        orig_asm_constraints_vecotr, copy_asm_constraints_vector): New static
        variables.
        * rtl.h (copy_insn, copy_insn_1): Declare.

Fri Oct  8 13:08:12 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (insn-recog.o): Depend on hard-reg-set.h and resource.h.

        * alpha.h (ASM_OUTPUT_MI_THUNK): Pass the correct number of
        arguments to `current_file_function_operand'.

        * genrecog.c: Include hard-reg-set.h and resource.h in the
        generated output file.

        * real.c: Include tm_p.h.

Fri Oct  8 18:46:11 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * i386.md (prologue_allocate_stack): Add '=' constraint letter on
        output operand.

Thu Oct  7 23:06:50 1999  Richard Henderson  <rth@cygnus.com>

        * rs6000.md (fix_truncdfsi2_internal+1): Emit a clobber
        before the fctiwz insn.

Thu Oct  7 22:53:00 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
                          Mark Mitchell  <mark@codesourcery.com>

        * tree.c (make_lang_type_fn): New funtion pointer.
        (make_lang_type): Call it.
        * tree.h (make_lang_type): Declare.
        (make_lang_type_fn): Likewise.
        * rs6000.c (rs6000_build_va_list): Use make_lang_type.

Thu Oct  7 00:36:17 1999  Diego Novillo  <dnovillo@cygnus.com>

        * config/rs6000/rs6000.c (secondary_reload_class): For TARGET_ELF
        make sure that HIGH instructions are copied into BASE_REGS.

Thu Oct  7 17:02:34 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * expr.c (expand_expr, TARGET_EXPR): Set TREE_USED sooner.

Thu Oct  7 17:01:58 1999  Greg McGary  <gkm@gnu.org>

        * c-decl.c (finish_struct): Use simpler method of
        removing elements of a singly-linked list.

Thu Oct  7 15:23:28 1999  Michael Meissner  <meissner@cygnus.com>

        * alpha.md (peephole2's): Comment out peephole2's that generate
        buggy code.

Thu Oct  7 12:00:53 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (add_to_sequence): Disable mode check for
        wildcard matches.

Thu Oct  7 20:14:16 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * ggc-simple.c (init_ggc): Set empty_string.

Thu Oct  7 01:13:15 1999  Richard Henderson  <rth@cygnus.com>

        * configure.in: Detect mmap.  Add --with-gc=foo to select
        garbage collector; default to page if mmap available.
        * Makefile.in (GGC): Substitute.

Wed Oct  6 23:56:30 1999  Richard Henderson  <rth@cygnus.com>

        * c-decl.c (ggc_p): Enable.

Wed Oct  6 17:17:08 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * flow.c (verify_flow_info): Make it extern & unconditionally define.

1999-10-06  Brendan Kehoe  <brendan@cygnus.com>

        * sparc/sp86x-elf.h (SUBTARGET_SWITCHES): Add missing doc
        string for little-endian-data.

Wed Oct  6 16:10:35 1999  Michael Meissner  <meissner@cygnus.com>

        * varray.h (VARRAY_CHECK): Fix up appropriate revision check, in
        case somebody tries to compile --enable-checking code with gcc
        1.34 or such.

Wed Oct  6 12:22:50 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (add_to_sequence): Verify operand to label_ref is
        VOIDmode.

Wed Oct  6 10:21:15 1999  Richard Henderson  <rth@cygnus.com>

        * genconfig.c (main): Disable HAVE_conditional_arithmetic.
        * jump.c (jump_optimize_1): Document why.

Wed Oct  6 10:41:56 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * collect2.c (scan_prog_file, scan_libraries): Prototype function
        pointers and casts for `int_handler' and `quit_handler'.

        * flow.c (verify_flow_info, split_hard_reg_notes,
        find_insn_with_note, sets_reg_or_subreg_1, prepend_reg_notes,
        remove_edge, remove_fake_successors): Add static prototypes.
        (verify_flow_info): Wrap with macro ENABLE_CHECKING.
        (mark_set_1): Initialize variable `regno'.
        (unlink_insn_chain): Likewise for variable `curr'.
        (remove_fake_edges): Remove unused variables `e', `tmp' and `last'.

        * loop.c (strength_reduce): Initialize variable
        `unrolled_insn_copies'.
        (cmp_combine_givs_stats, cmp_recombine_givs_stats): Add static
        prototypes.  Change these functions to take const PTR parameters
        to avoid prototype conflict when used as the comparson argument
        for qsort.
        (check_dbra_loop): Initialize variable `comparison_val'.

        * reload.c (debug_reload_to_stream, debug_reload): Add prototypes.
        (get_secondary_mem): Mark parameter `x' with ATTRIBUTE_UNUSED.
        (find_valid_class): Initialize variable `best_class'.
        (find_reloads): Call memcpy, not bcopy.

        * reload1.c (gen_mode_int, dump_needs): Add prototypes.
        (hard_reg_use_compare): Don't needlessly cast away const.
        (reload_reg_class_lower): Likewise.
        (choose_reload_regs): Initialize variable `regno'.

Tue Oct  5 16:34:12 1999  Paul Burchard <burchard@pobox.com>

        * ggc-page.c (GGC_ALWAYS_COLLECT): Fix typo when undef'ing.

Tue Oct  5 16:14:40 1999  Michael Meissner  <meissner@cygnus.com>

        * libgcc1-test.c (toplevel): Include stddef.h to get size_t.
        ({,d}discard): Add forward declarations.  Declare parameter as
        unused.
        (main_without_main): Explicitly declare return type to be int.
        (memcpy): Properly declare.

        * libgcc2.c (toplevel): If inhibit_libc is defined and not
        building the trampoline support, declare malloc, free, and
        atexit.
        (__clear_cache): Mark arguments as potentially unused.

        * frame.c (toplevel): If inhibit_libc is defined, declare
        malloc and free.

Tue Oct  5 12:00:32 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (make_edge): Accept an optional 2D bitmap in which
        to cache edge existence.  Update all callers.
        (make_label_edge, make_eh_edge): Pass through the edge cache.
        (make_edges): Provide the cache.

Tue Oct  5 12:16:49 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mbchar.c (literal_codeset, local_mbtowc, local_mblen): Constify
        a char*.
        (local_mbtowc): Change the type of variable `i' from int to size_t.

        * mbchar.h (ISSJIS1, ISSJIS2): Use parens around && within ||.
        (local_mbtowc, local_mblen, literal_codeset): Constify a char*.

Tue Oct  5 11:34:52 1999  Michael Meissner  <meissner@cygnus.com>

        * ggc-common.c (toplevel): Reorder includes, so that ggc.h comes
        after other includes that define the appropriate types.  Include
        tm_p.h for getting user prototypes.
        * ggc-callbacks.c (toplevel): Ditto.
        * ggc-none.c (toplevel): Ditto.
        * gcc-page.c (toplevel): Ditto.
        * ggc-simple.c (toplevel): Ditto.

Mon Oct  4 16:48:16 1999  Diego Novillo <dnovillo@cygnus.com>
                          Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * config/mips/mips.c (mips_move_2words): Split doubles if
        ISA >= 3, !TARGET_64BIT, and destination is not an FP register.

Mon Oct  4 21:47:31 1999  Richard Henderson  <rth@cygnus.com>

        * genrecog.c (struct decision_test): New.
        (struct decision): Remove test-related members, sort the rest by size.
        (IS_SPLIT): Simplify.
        (new_decision, new_decision_test): New.
        (add_to_sequence): Use them.  No special handling for args of
        non-MATCH codes.
        (maybe_both_true): Renamed from not_both_true; return sense changed.
        (maybe_both_true_1, maybe_both_true_2): New.  Broken out
        of maybe_both_true and adjusted for decision_test.
        (position_merit): Remove.
        (nodes_identical, nodes_identical_1): New, broken out of merge_trees.
        (merge_accept_insn): New, broken out of merge_trees.
        (merge_trees): Use them.  No special case for c_test; no node
        splitting; use test type instead of position_merit.
        (factor_tests): New.
        (simplify_tests): New.
        (break_out_subroutines): Don't write code now.
        (find_afterward): New.
        (write_afterward, write_switch, write_cond): New.
        (write_action, is_unconditional): New.
        (write_node): New.  Use them.
        (write_tree_1): Rewrite.  Use the new functions above.
        (write_tree): Remove afterward processing.
        (write_subroutine): Simplify function variant emission.
        (write_subroutines): New.
        (same_codes, clear_codes): Remove.
        (same_modes, clear_modes): Remove.
        (write_header): New, broken out of main.
        (make_insn_sequence): Use new_decision and new_decision_test.
        (process_tree): New, broken out of main.
        (main): Adjust for merge_trees interface change.
        Don't #define operands in the output file.
        (record_insn_name): New, broken out of make_insn_sequence.
        (debug_decision_2, debug_decision_1, debug_decision_0): New.
        (debug_decision): New.

1999-10-04 21:58 -0700  Zack Weinberg  <zack@bitmover.com>

        * resource.c (find_free_register): Mark class_str argument const.
        * resource.h: Update prototype to match.

        * i386.h (PREDICATE_CODES): Add entry for long_memory_operand.
        * i386.md: Give all anonymous insns names.

Mon Oct  4 21:12:02 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (merge_blocks): Avoid assing BASIC_BLOCK for non-existent
        blocks.

Mon Oct  4 21:01:39 1999  Richard Henderson  <rth@cygnus.com>

        * toplev.c (dbr_sched_time): Unconditional.
        (peephole2_time): New.
        (compile_file): Add pass numbers to all of the dump file suffixes.
        Dump peephole2_time.  Don't dump times for non-applicable passes.
        (rest_of_compilation): Add pass numbers to dump file suffixes.
        Conditionalize calls to the scheduler.
        * invoke.texi: Update.

Mon Oct  4 20:25:13 1999  Anthony Green  <green@cygnus.com>

        * flow.c (make_edges): Fix insn iteration.
        (find_basic_blocks): Assign NULL_RTX, not 0, to rtx.
        (find_basic_blocks_1): Fix spelling mistake.

Mon Oct  4 16:56:11 1999  Richard Henderson  <rth@cygnus.com>

        * tree.c (build1): Set TREE_SIDE_EFFECTS for expressions that
        always have side-effects.  Use memset not bzero.
        (make_node): Likewise.

Mon Oct  4 16:22:20 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_anon_union_decl): When any of the elements of the
        union is addressable, so is the entire union.

Mon Oct  4 11:38:33 1999  Richard Henderson  <rth@cygnus.com>

        * sbitmap.c (sbitmap_ones): Don't set too many bits.

        * bitmap.h (enum bitmap_bits): Add BITMAP_XOR.
        * bitmap.c (bitmap_operation): Return true iff TO changed.
        (bitmap_equal_p): New.
        (bitmap_bit_p): Tidy arithmetic.
        (debug_bitmap_file): Likewise.

Mon Oct  4 11:28:37 1999  Richard Henderson  <rth@cygnus.com>

        * toplev.c (rest_of_compilation): Turn on cse_not_expected
        before cse2 instead of after.

Mon Oct 4 09:55:17 1999  Stan Cox  <scox@cygnus.com>

        * mips.h (GO_IF_LEGITIMATE_ADDRESS): Let leasi/liadi handle large
        register offsets.

Mon Oct  4 08:54:12 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * cppinit.c (is_idchar initializer): Loosen tests to accept
        gcc 2.>6 and >2.

Mon Oct  4 02:31:20 1999  Mark Mitchell  <mark@codesourcery.com>

        * mips.md: Define conditional move patterns for floating point
        operands and DI mode conditions.

Mon Oct  4 02:12:41 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (make_node): Set TREE_SIDE_EFFECTS for expressions that
        always have side-effects.

Sun Oct  3 14:14:16 1999  Jeffrey A Law  (law@cygnus.com)

        * mn10200.c (asm_file_start): Fix typo.

        * cppinit.c (is_idchar initializer): Tighten tests for when
        to put the table into initialized memory.

        * ggc-none.c (ggc_alloc_rtvec): An rtvec is an array of rtx,
        not an array of rtunion.
        * gcc-page.c (ggc_alloc_rtvec): Similarly.
        * gcc-simple (ggc_free_rtvec): Similarly.

        * genattrtab.c (simplify_cond): Make TESTS an array of rtxs, instead
        of rtunions.

        * mbchar.h: Add missing #endif.

        * t-fr30 (LIB2FUNCS_EXTRA): Remove definition.
        (FPBIT, DPBIT): Define.

Sun Oct  3 12:44:05 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * print-tree.c (print_node, indent_to): Remove redundant prototypes.

        * profile.c (instrument_arcs, output_gcov_string,
        tablejump_entry_p): Add static prototypes.
        (output_gcov_string): Constify a char*.

        * regmove.c (replacement_quality, fixup_match_2): Add static
        prototypes.

        * resource.h (reg_dead_p): Add extern prototype.

        * rtl.c (trim_filename): Add static prototype.

        * scan-decls.c (skip_to_closing_brace): Likewise.

        * stmt.c (expand_decl_cleanup_no_eh): Hide definition.
        (expand_end_case): Initialize variable `range'.
        (emit_case_nodes): Remove unused prototype `rtx_fn'.

        * varasm.c (asm_emit_uninitialised): Add static prototype.
        (asm_emit_uninitialised, assemble_variable): Mark parameter with
        ATTRIBUTE_UNUSED.

Sun Oct  3 12:24:52 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpplib.c (if_directive_nameo): Add static prototype.

        * cse.c (cse_insn): Remove unused variable `p'.

        * except.c (create_rethrow_ref, push_entry,
        receive_exception_label, new_eh_region_entry, find_func_region,
        clear_function_eh_region, process_nestinfo): Add static prototypes.
        (get_reg_for_handler): Hide definition.
        (process_nestinfo): Initialize variable `extra_handlers'.

        * expr.h (expand_builtin_longjmp): Add extern prototype.

        * final.c (final_addr_vec_align, align_fuzz): Add static prototypes.

        * function.c (prepare_function_start): Likewise.
        (pop_function_context_from): Mark parameter `context' with
        ATTRIBUTE_UNUSED.
        (push_temp_slots_for_block, flush_addressof): Hide definition.

        * gcov.c (init_arc, reverse_arcs, create_program_flow_graph,
        solve_program_flow_graph, calculate_branch_probs,
        function_summary, main, fancy_abort): Add prototypes.

        * gen-protos.c (add_hash, parse_fn_proto, main): Likewise.
        (add_hash): Constify a char*.

        * ggc-common.c (ggc_mark_rtx_ptr, ggc_mark_tree_ptr,
        ggc_mark_tree_varray_ptr, ggc_mark_tree_hash_table_ptr,
        ggc_mark_string_ptr, ggc_mark_tree_hash_table_entry): Add prototypes.

        * integrate.c (expand_inline_function_eh_labelmap): Likewise.

        * lists.c (free_list, zap_lists): Likewise.

Sun Oct  3 12:05:28 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alias.c (nonlocal_reference_p): Add static prototype.

        * bitmap.c (bitmap_element_allocate): Prototype args in function
        pointer cast.

        * builtins.c (stabilize_va_list): Add static prototype.
        (expand_builtin_va_arg): Constify a char*.

        * c-lex.c (getch, put_back, extend_token_buffer_to,
        read_line_number, token_getch, token_put_back): Add static
        prototypes.

        * c-parse.gperf (hash, is_reserved_word): Likewise.

        * cccp.c (is_dir_separator): Likewise.

Sat Oct  2 16:07:56 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * graph.h: New file to prototype functions exported by graph.c.

        * Makefile.in (graph.o, toplev.o): Depend on graph.h.

        * graph.c: Include graph.h.

        * toplev.c: Likewise.  Remove redundant prototypes.

Sat Oct  2 11:28:33 1999  Krister Walfridsson <cato@df.lth.se>

        * invoke.texi: Removed duplicated description for -Q.

Sat Oct  2 11:16:00 1999  Jim Kingdon  <http://developer.redhat.com>

        * extend.texi: Grammar fix in __extension__ text.

Sat Oct  2 11:06:31 1999  Richard Henderson  <rth@cygnus.com>

        * md.texi (define_peephole2): New section.

Sat Oct  2 10:57:56 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (mov?i patterns): Fix handling of TARGET_USE_MOV0
        (mov $-1 to or peepholer): Enable for pentium when optimizing for
        speed.

Sat Oct  2 10:55:25 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * builtins.c (expand_builtin_strlen): Fix best mode searching loop.

Sat Oct  2 10:53:22 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (ffs expander): Emit Pentium friendly code for
        TARGET_PENTIUM.

Sat Oct  2 02:48:21 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * tree.c (build): Don't look at TREE_SIDE_EFFECTS or TREE_RAISES
        for non-trees.
        (build1): Likewise.

Fri Oct  1 18:01:11 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * i386elf.h (TARGET_DEFAULT): Use symbolic constants.

Fri Oct  1 12:42:53 1999  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.c (use_return_insn): Return false if the pic
        register is in use.

Fri Oct  1 10:56:06 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * md.texi (No Constraints): Delete section.
        * Makefile.in (genattrtab.o): Don't depend on "insn-config.h".
        * final.c (final_scan_insn): We always have register constraints.
        * genattrtab.c: Don't include "insn-config.h".
        (write_attr_case): We always have register constraints.
        * genconfig.c (register_constraint_flag): Delete.
        (walk_insn_part): Don't check whether we have register constraints.
        (main): Don't write out "#define REGISTER_CONSTRAINTS".
        * genoutput.c (have_constraints): Delete.
        (main): Don't set it.
        (output_operand_data): We always have constraints.
        (scan_operands): Likewise.
        (compare_operands): Likewise.
        * local-alloc.c (block_alloc): We always have constraints.
        (requires_inout): Always compile this function.
        * recog.c (extract_insn): We always have constraints.
        (constrain_operands, reg_fits_class_p): Always compile these
        functions.
        * recog.h (struct recog_data): Delete non-REGISTER_CONSTRAINTS
        fields.
        (struct insn_operand_data): Likewise.
        * regclass.c (regclass): We always have constraints.
        (record_reg_classes, copy_cost, record_address_regs,
        auto_inc_dec_reg_p): Always compile these functions.
        * regmove.c (regmove_optimize): We always have constraints.
        * reload.c (find_reloads): Likewise.
        * reload1.c (reload): Likewise.
        (reload_cse_simplify_operands): Likewise.
        * i860.c (output_delay_insn): Likewise.

Thu Sep 30 23:04:41 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * iris6.h (BUILD_VA_LIST_TYPE): Define.

Thu Sep 30 18:44:50 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (rs6000_build_va_list): Create a TYPE_DECL node
        for the va_list record.

Thu Sep 30 18:34:54 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.c (ix86_adjust_cost): Ignore false ebp dependencies in
        prologues.

Thu Sep 30 18:31:36 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * alias.c: Include insn-flags.h.
        * Makefile.in (alias.o): Update.

Thu Sep 30 18:21:30 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.c (ix86_expand_int_movcc): Convert LEU and GTU comparisons
        to LTU and GEU.  Handle more cases using sbb.

Thu Sep 30 18:18:39 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * i386.md (truncatexfdf splitters): Do not use subreg.
        (fop XFmode patterns): Fix mode in operand testing.

Thu Sep 30 18:04:13 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Amend last change to test only the
        form of the operand, not the insn.

        * jump.c (jump_optimize_1) [conditional_move]: Use general_operand
        not register_operand to determine when B may need preloading.

Thu Sep 30 17:39:16 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (*): Use nonimmediate not general_operand for SET_DEST.
        (ffsdi2, extxl, insxh, mskxh): Add missing DImode to SET_SRC.
        (call-value patterns): Move to end of file.
        (*): Remove mode from label_ref in (pc) context.
        (movstrqi): Use memory not general_operand for BLKmode operands.
        (prologue_stack_probe_loop, builtin_longjmp): Add missing mode
        to register_operand operands.
        (peep2 patterns): Convert from commented-out peephole patterns.

Thu Sep 30 14:39:17 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * tree.h (enum built_in_function): Rename BUILT_IN_DWARF_REG_SIZE
        to BUILT_IN_INIT_DWARF_REG_SIZES.
        * builtins.c (expand_builtins, case BUILT_IN_INIT_DWARF_REG_SIZES):
        Renamed from BUILT_IN_DWARF_REG_SIZE; call
        expand_builtin_init_dwarf_reg_sizes.
        * c-decl.c (init_decl_processing): Replace __builtin_dwarf_reg_size
        with __builtin_init_dwarf_reg_size_table.
        * dwarf2out.c (struct reg_size_range): Delete.
        (expand_builtin_init_dwarf_reg_sizes): New function.
        (expand_builtin_dwarf_reg_size): Delete.
        * except.h (expand_builtin_init_dwarf_reg_sizes): Declare.
        (expand_builtin_dwarf_reg_size): Don't declare.
        * libgcc2.c (dwarf_reg_size_table_initialized): New.
        (dwarf_reg_size_table): New.
        (init_reg_size_table): New function.
        (copy_reg): Use dwarf_reg_size_table.
        (eh_context_initialize): Make sure dwarf_reg_size_table is initialized
        before use.

Thu Sep 30 05:40:34 1999  Richard Earnshaw <rearnsha@arm.com>

        * c-lang.c (finish_file case ndef ASM_OUTPUT_{CON,DE}STRUCTOR):
        Correctly build argument list to constructor and destructor functions.

Thu Sep 30 00:13:27 1999  Dirk Zoller  <duz@rtsffm.com>

        * c-tree.h (warn_float_equal): Declare.
        * c-decl.c (warn_float_equal): Define.
        (c_decode_option): Recognize -W[no-]float-equal.
        * c-typeck.c (build_binary_op): Conditionally warn
        about equality tests of floating point types.
        * toplev.c (documented_lan_options): Add -W[no-]float-equal.
        * invoke.texi: Add docs for -Wfloat-equal warning.

Wed Sep 29 23:43:39 1999  Jeffrey A Law  (law@cygnus.com)

        * h8300.h (INIT_TARGET_OPTABS): Use init_one_optab instead of
        generating RTL directly.
        * mips.h (INIT_TARGET_OPTABS): Likewise.
        * mn10200.h (INIT_TARGET_OPTABS): Likewise.

        * expr.h (init_mov_optab): Delete declaration

        * h8300.c (WORD_REG_USED): Update to avoid useless register
        saves in interrupt functions and functions which never return.

        * cse.c (struct set): Delete inner_dest_loc field.
        (cse_insn): Remove assignments to inner_dest_loc field.

Wed Sep 29 16:06:20 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-page.c: Don't include <unistd.h> etc taken care of
        by "system.h".  Include <sys/mman.h> afterward.

Wed Sep 29 16:05:18 1999  Richard Henderson  <rth@cygnus.com>

        * rs6000.c (rs6000_encode_section_info): If ggc_p, use
        ggc_alloc_string.

Tue Sep 28 16:45:40 1999  David Edelsohn  <edelsohn@gnu.org>

        * xcoffout.c (xcoffout_declare_function): Add documentation.
        * rs6000.c (num_insns_constant_wide): Use TARGET_POWERPC64 not
        TARGET_64BIT.  Compare constant to -1, not bit pattern.
        (easy_fp_constant): Use TARGET_POWERPC64 not TARGET_64BIT.
        (expand_block_move): Allow 8 DImode loads for PowerPC64.  Fix
        gen_movsi typos.

Tue Sep 28 16:43:14 1999  Nick Clifton  <nickc@cygnus.com>

        * dwarf2out.c (add_abstract_origin_attribute): Abort if
        origin_die is NULL.
        (gen_inlined_enumeration_type_die): Do not abort if the type has
        not been writeen out.
        (gen_inlined_structure_type_die): Do not abort if the type has
        not been writeen out.
        (gen_inlined_union_type_die): Do not abort if the type has
        not been writeen out.
        (gen_tagged_type_instantiation_die): Do not abort if the type
        has not been written out.

Tue Sep 28 14:33:47 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-decl.c (init_decl_processing): If MD_INIT_BUILTINS is defined,
        call it.
        * reg-stack.c (straighten_stack): Copy hard reg set with
        COPY_HARD_REG_SET.

Tue Sep 28 01:11:05 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c (stabilize_va_list): Stabilize array type va_list
        to a pointer type, not the base record type.
        (expand_builtin_va_copy): Dereference the pointers explicitly;
        use the correct size for the copy.

        * rs6000.c (rs6000_va_start): Dereference valist to get to the record.
        (rs6000_va_arg): Likewise.

Mon Sep 27 23:27:21 1999  Richard Henderson  <rth@cygnus.com>

        * rtl.h (struct rtx_def): Move gc_mark to align mode field.

Mon Sep 27 23:20:29 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (struct tree_decl): Use `bclass', not `class', in name of
        field.
        (DECL_BUILT_IN_CLASS): Adjust accordingly.

Mon Sep 27 23:03:16 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-page.c (GGC_MIN_LAST_ALLOCATED): New.
        (init_ggc): Use it instead of a constant.
        (ggc_collect): Bound allocated_last_gc by it.

Mon Sep 27 19:06:04 1999  Jeffrey A Law  (law@cygnus.com)

        * fixinc/fixinc.irix (stdio.h): Hack stdio.h to avoid problems
        with va_list.

Mon Sep 27 19:40:17 CEST 1999   Marc Espie <espie@cvs.openbsd.org>

        * configure.in (mips*el-*-openbsd*):  Don't duplicate default settings.
        (mips*-*-openbsd*):  Let big endian configuration be a fragment.
        * configure:  Regen.
        * config/mips/openbsd.h:  New, OpenBSD little endian target.
        * config/mips/openbsd-be.h:  New, OpenBSD big endian target fragment.
        * config/mips/xm-openbsd.h:  New, OpenBSD host.

Mon Sep 27 10:28:48 1999  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.c (output_function_prologue,
        output_function_epilogue): Use
        current_function_uses_pic_offset_table instead of regs_ever_live
        to decide whether to save/restore pic register.
        (legitimize_pic_address): Don't modify regs_ever_live any more.

Sun Sep 26 10:55:36 1999  Mark Mitchell  <mark@codesourcery.com>

        * function.h (struct function): Add x_dont_save_pending_sizes_p.
        * stor-layout.c (variable_size): Don't add sizes to the pending
        sizes list if x_dont_save_pending_sizes_p is set.

Sun Sep 26 16:36:52 1999  Robert Lipe  (robertlipe@usa.net)

        * config/i386/dgux.h (SELECT_RTX_SECTION): Provide dummy argument
        for symbolic_operand().
        * config/i386/sco5.h (SELECT_RTX_SECTION): Likewise.

Sun Sep 26 07:37:11 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * combine.c (gen_rtx_combine): Add missing call to va_end().

        * final.c (asm_fprintf): Likewise.

        * genattrtab.c (attr_rtx): Likewise.

Sat Sep 25 13:11:07 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c: Update comments.
        (cse_insn): When converting a conditional/computed jump into
        an unconditional jump, always make sure a BARRIER immediately
        follows the converted jump.  Do not delete unreachable code.
        (cse_basic_block): Do not delete unreachable code.
        * toplev.c (rest_of_compilation): Move call to
        delete_trivially_dead_insns after the conditional call to
        jump_optimize.

Sat Sep 25 09:03:17 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * collect2.c (make_temp_file): Don't prototype.

        * gcc.c (make_temp_file): Likewise.

        * mips.c (mips_make_temp_file): Renamed from `make_temp_file'.

Sat Sep 25 13:42:15 1999  Nick Clifton  <nickc@cygnus.com>

        * varasm.c (asm_emit_uninitialised): New function: Generate
        the assembler statements necessary to declare an uninitialised
        variable.
        (ASM_EMIT_LOCAL): New macro: Emit a local, uninitialised
        variable.
        (ASM_EMIT_BSS): New macro: Emit an entry in the bss section.
        (ASM_EMIT_COMMON): New macro: Emit an entry in the common
        section.
        (assemble_variable): Use asm_emit_uninitialised to emit an
        uninitialised variable.

Fri Sep 24 17:10:56 1999  Nick Clifton  <nickc@cygnus.com>

        * combine.c (simplify_comparison): Cope with downshifting a 32 bit
        constant on a 64 bit host.  Patch supplied by Geoffrey Keating
        <geoffk@cygnus.com>.

Fri Sep 24 10:48:10 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * builtins.c (expand_builtin): Use MD_EXPAND_BUILTIN if defined.
        * c-common.h (builtin_function): Don't declare.

        * c-decl.c (duplicate_decls): Use DECL_BUILT_IN_CLASS rather than
        DECL_BUILT_IN.
        (pushdecl): Likewise.
        (finish_decl): Likewise.
        (builtin_function): New arg CLASS.  Arg FUNCTION_CODE now of type
        int.  All callers changed.
        Set the builtin's DECL_BUILT_IN_CLASS.
        * tree.h (enum built_in_class): New.
        (enum built_in_function): Delete NOT_BUILT_IN.
        (DECL_FUNCTION_CODE): The corresponding field in tree_decl is now
        in a union.
        (DECL_SET_FUNCTION_CODE): Likewise.
        (DECL_BUILT_IN_CLASS): New macro.
        (DECL_BUILT_IN): Use DECL_BUILT_IN_CLASS.
        (struct tree_decl): Split builtin function code field into a
        struct.
        (builtin_function): Declare.

Fri Sep 24 01:45:05 1999  Mark Mitchell  <mark@codesourcery.com>

        * optabs.c (init_traps): Fix typo in last change.

Fri Sep 24 01:10:11 1999  Mark Mitchell  <mark@codesourcery.com>

        * toplev.c (rest_of_decl_compilation): Update comment.

Fri Sep 24 11:57:06 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * config/mips/elf.h (ASM_OUTPUT_ALIGNED_BSS): Put the symbol
        in .sbss if appropriate.
        (EXTRA_SECTION_FUNCTIONS): Add sbss.
        (SBSS_SECTION_ASM_OP): New macro.
        * config/mips/linux.h (EXTRA_SECTION_FUNCTIONS): Add sbss.
        (EXTRA_SECTIONS): Add in_sbss.
        * config/mips/mips.h: Prototype sbss_section.

Thu Sep 23 18:18:55 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_start_bindings): Don't allow cleanup instructions
        to disappear.

Thu Sep 23 18:07:01 1999  Mark Mitchell  <mark@codesourcery.com>

        * optabs.c (init_traps): Register trap_rtx as a GC root.

Thu Sep 23 17:41:47 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/mips/mips.c (function_arg_pass_by_reference): Define
        unconditionally, since it's called unconditionally.

Thu Sep 23 13:40:02 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (documented_lang_options): Add -fshort-wchar.
        * c-decl.c (c_decode_option): Likewise.
        (init_decl_processing): If -fshort-wchar, use 'short unsigned int'
        for wchar_t.
        * c-common.c, c-lex.c: Get WCHAR_TYPE_SIZE from wchar_type_node.
        * gcc.c (default_compilers): If -fshort-wchar,
        override __WCHAR_TYPE__.
        * tm.texi (C Dialect Options): Add -fshort-wchar.

        * dwarf2out.c (output_aranges): Use DW_AT_location to find the
        symbol for a variable.

        * cpplib.h (CPP_PREPROCESSED): New macro.
        * cpplib.c (handle_directive): Don't complain about `# NUMBER' if
        we're seeing this input for a second time.

Thu Sep 23 12:54:49 1999  Alex Samuel  <samuel@codesourcery.com>

        * emit-rtl.c (init_emit_once): Initialize modes first.

Sun Sep 19 01:23:23 1999  Alex Samuel  <samuel@codesourcery.com>

        * config/i386/i386.c (pic_label_name): Change to char pointer.
        (global_offset_table): New variable.
        (load_pic_register): Fill global_offset_table if it hasn't
        already been done.  Allocate pic_label_name dynamically.
        * ggc.h (empty_string): New variable.
        * ggc-simple.c (empty_string): Likewise.
        (init_ggc): Allocate empty_string and add as root.
        * stmt.c (digit_strings): New variable.
        (init_stmt): Add last_block_end_note as root.  Allocate and
        initialize digit_strings.
        (expand_asm_operands): Use empty_string instead of string
        constant.  Use digit_strings instead of string constants.
        * profile.c (init_arc_profiler): Allocate string with
        ggc_alloc_string instead of xmalloc.
        (output_func_start_profiler): Likewise.
        * c-typeck.c (digest_init): Check if init is error_mark_node.

Thu Sep 23 12:59:14 1999  Alex Samuel  <samuel@codesourcery.com>
                          Richard Henderson  <rth@cygnus.com>

        * ggc-page.c: New file.
        * Makefile.in (ggc-page.o): New.

Thu Sep 23 13:55:21 1999  Jeffrey A Law  (law@cygnus.com)

        * invoke.texi: Document -fdelete-null-pointer-checks
        * toplev.c (flag_delete_null_pointer_checks): New.
        (f_options): Add entry for -fdelete-null-pointer-checks.
        (rest_of_compilation): Conditionalize null pointer check
        elimination on flag_delete_null_pointer_checks.
        (main): If -O2 or greater, enable -fdelete-null-pointer-checks

1999-09-23 10:56 -0700  Zack Weinberg  <zack@bitmover.com>

        * iso646.h, stdarg.h, stdbool.h, stddef.h, varargs.h: Add
        copyright notice and special exception to GPL.

Thu Sep 23 13:40:23 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * abi64.h (mips_function_value): Add prototype arguments.

        * mips-protos.h: New file with mips prototypes.

        * mips.c: Include "tm_p.h".
        (mktemp, lookup_name): Add prototype arguments.
        (extern_list, string_constant, mips_fill_delay_slot,
        mips_output_external, mips_output_external_libcall,
        mips_output_filename, mips_declare_object, function_prologue,
        mips_expand_prologue, function_epilogue, mips16_constant,
        build_mips16_function_stub, mips_output_conditional_branch):
        Constify a char*.
        (mips_va_start): Remove unused variable `u'.
        (mips_va_arg): Cast value to unsigned when comparing against one.
        (trace): Delete.
        (save_restore_insns, mips_expand_prologue): Add missing arg in
        call to `large_int'.

        * mips.h: Move prototypes to mips-protos.h.
        (data_section, memory_address_p, rdata_section,
        readonly_data_section, simple_epilogue_p, text_section): Delete
        prototypes delcared elsewhere.
        (mips_epilogue_delay_slots, print_options): Delete unused decls.
        (trace): Delete.
        (GO_PRINTF, GO_PRINTF2): Call fprintf, not trace.

        * mips.md: Delete extra args in call to `mips_move_2words'.

        * xm-iris6.h (alloca): Add prototype argument.

        * genpeep.c: Include "tm_p.h" in generated output file.

Thu Sep 23 10:36:55 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * basic-block.h (find_edge_index): Change parameters.
        * flow.c (verify_edge_list): Pass basic_block parameters to
        find_edge_index instead of integers.

Thu Sep 23 15:54:12 1999  Nick Clifton  <nickc@cygnus.com>

        * combine.c (simplify_comparison): Use an unsigned shift to adjust
        the constant.

Thu Sep 23 08:46:21 1999  Guy Harris  <guy@netapp.com>

        * gcc.1: Fix a formatting error.

Wed Sep 22 16:10:21 1999  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * install.texi (Configurations): Remove pyramid. Add fr30, i686,
        i786, mn10200, mn10300, pdp11, v850.

Thu Sep 23 07:37:13 1999  Dan Nicolaescu  <dann@ics.uci.edu>

        * libgcc2.c (num_digits): Add prototype with
        __attribute__((const)).
        (__terminate): Add prototype.

Thu Sep 23 05:32:06 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c, dbxout.c, varasm.c: Include tm_p.h.

        * alpha/alpha.c (print_operand): Fix type of `code'.
        (alpha_output_filename): Constify.
        * alpha/alpha.h: Move all function declarations ...
        * alpha/alpha-protos.h: ... here.  New file.
        * alpha/elf.h (CONST_SECTION_FUNCTION): Prototype the function.
        (SECTION_FUNCTION_TEMPLATE): Likewise.

Thu Sep 23 11:15:36 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * expmed.c (do_cmp_and_jump): Pass ccp_jump to can_compare_p.
        * expr.c (expand_expr): Likewise.
        (do_jump): Likewise.
        (do_store_flag): Pass ccp_store_flag to can_compare_p.
        * expr.h (enum optab_index): Add cbranch, cmov, cstore optabs and
        accessor macros.
        (enum can_compare_purpose): New.
        (can_compare_p): Adjust prototype.
        (prepare_cmp_insn, prepare_operand): Declare.
        * genopinit.c (optabs): Add cbranch_optab, cmov_optab, cstore_optab.
        * optabs.c (cmp_available_p): Deleted.
        (expand_abs): Pass ccp_jump to can_compare_p.
        (can_compare_p): New arg PURPOSE.  Check for combined optabs.
        (prepare_cmp_insn): No longer static.  Add arg PURPOSE.
        Call can_compare_p rather than cmp_available_p.
        (prepare_operand): No longer static.
        (emit_cmp_and_jump_insn): Check for and use cbranch patterns.
        (emit_cmp_and_jump_insns): Pass ccp_jump to prepare_cmp_insn.
        (expand_float): Fix a slightly broken emit_cmp_insn/emit_jump_insn
        sequence to use emit_cmp_and_jump_insns.
        (init_optabs): Initialize cbranch_optab, cmov_optab, cstore_optab.

Wed Sep 22 17:58:01 1999  Stan Cox  <scox@cygnus.com>

        * mips.h (GO_IF_LEGITIMATE_ADDRESS): Don't accept large
        register offsets; let LEGITIMIZE_ADDRESS load it into a register.
        (LEGITIMIZE_ADDRESS): Use plus_constant to avoid
        (plus (reg) (const_int 0))
        * mips.md (call_internal3c): New pattern for -mips16 -mlong-calls.

Wed Sep 22 17:55:31 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (expand_block_move): DImode loads and stores require
        word-aligned displacements.  Increment address registers with
        adddi3 on 64-bit platform.  Use TARGET_POWERPC64 not TARGET_64BIT.

Wed Sep 22 17:35:55 1999  Michael Meissner  <meissner@cygnus.com>

        * dwarf2out.c (base_type_die): Use the name __unknown__ if there
        is no name for the base type, rather than segfault.  If we are
        writing out a complex integer type, use DW_ATE_lo_user.

        * expr.c (emit_move_insn_1): If we are copying a complex that fits
        in one word or less (complex char, complex short, or on 64 bit
        systems complex float) to/from a hard register, copy it through
        memory instead of dying in gen_{real,imag}part.  If we have a
        short complex type, prevent inlining since it allocates stack
        memory.

        * tree.c (build_complex_type): If we are writing dwarf2 output,
        generate a name for complex integer types.

Wed Sep 22 11:34:08 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * basic-block.h (add_noreturn_fake_exit_edges): Use correct name.
        * flow.c (remove_edge): Remove extra whitespace.
        (remove_fake_edges): Fix comment.
        (add_noreturn_fake_exit_edges): Use the correct name.

Wed Sep 22 16:12:40 BST 1999  Nathan Sidwell  <nathan@acm.org>

        * Makefile.in (INTL_MOSTLYCLEAN, INTL_CLEAN): New variables.
        (mostlyclean): Depend on INTL_MOSTLYCLEAN.
        (clean): Depend on INTL_CLEAN.
        (maintainer-clean): Adjust.

Wed Sep 22 10:18:56 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (AC_PREREQ): Bump to 2.13.
        (AC_C_STRINGIZE): Call this instead of using a custom macro.

        * gansidecl.h (HAVE_STRINGIZE): Define, if stage2 gcc && __STDC__.

        * system.h (HAVE_STRINGIZE): Test this instead of HAVE_CPP_STRINGIFY.

        * acconfig.h (HAVE_CPP_STRINGIFY): Delete.

        * alpha/xm-vms.h (HAVE_CPP_STRINGIFY): Delete.
        (HAVE_STRINGIZE): Define.

Wed Sep 22 06:25:15 1999  Jim Kingdon  <http://developer.redhat.com>

        * c-parse.in: save and restore warn_pointer_arith on __extension__
        along with pedantic.
        (SAVE_WARN_FLAGS, RESTORE_WARN_FLAGS): Added.
        Set the type of extension to itype rather than $<itype>1 kludge.
        * extend.texi (Alternate Keywords): Adjust documentation.
        * c-parse.c, c-parse.y, objc-parse.c, objc-parse.y: Rebuilt.

Wed Sep 22 06:06:57 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c, pa.h, pa.md: Support multiple assembler dialects in
        most assembler templates.

        * pa.c (hppa_legitimize_address): Handle full offsets for PA2.0
        FP loads and stores.
        (following_call): Always return zero for the PA8000.
        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Handle full offsets for PA2.0
        FP loads and stores.
        (LEGITIMIZE_RELOAD_ADDRESS): Similarly.

        * pa.h (BRANCH_COST): Define.

        * pa.md (return, return_internal): Use bve for PA2.0.

        * pa.md (fused multiply): Add variants which reduce height for the
        fused multiply, but which still generate 2 insns.
        (fnegabs): Similarly.

        * pa.md (subsi3): Turn into an expander.  Create two anonymous
        patterns.  One for PA2.0 one for PA1.x.  Use mtsarcm for PA2.0.
        * pa.h (EXTRA_CONSTRAINT): Handle 'S'.

        * pa.md (floatunssisf2, floatunssidf2): Generate different RTL
        for TARGET_PA_20.
        (floatunssidf2_pa20, floatunssisf2_pa20): New patterns for PA2.0
        code generation.
        (floatunsdisf2, floatunsdidf2, fixuns_truncsfsi2): Likewise.
        (fixuns_truncdfsi2, fixuns_truncsfdi2, fixuns_truncdfsi2): Likewise.

        * regclass.c (init_regs): Add "top_of_stack" as a garbage
        collection root.

        * flow.c (record_active_eh_regions): Terminate loop after finding
        the last insn in the last basic block.

Wed Sep 22 20:25:00 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md: Delete parallel instruction peepholes.

Wed Sep 22 19:59:19 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_add_gc_roots): Add tree roots.

Wed Sep 22 19:56:25 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_process_after_reload): Rework machdep insn
        splitting to not use output template.

Wed Sep 22 19:50:12 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (EXPAND_BUILTIN_VA_START): Call c4x_va_start.
        * config/c4x/c4x.c (c4x_va_start): New function.

Tue Sep 21 18:40:01 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * genrecog.c (not_both_true): Handle correctly cases when called for
        tests with different positions in the insn.

Tue Sep 21 18:29:11 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * machmode.h (HOST_PTR_PRINTF): Move from here ...

        * system.h (HOST_PTR_PRINTF): ... to here.

        * mips-tfile.c: Don't include machmode.h.

        * Makefile.in (MACHMODE_H): New variable.  Update to use it.
        (mips-tfile.o): Don't depend on machmode.h.

Tue Sep 21 18:27:34 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * haifa-sched.c (sched_analyze): Rename local variable `region' to
        avoid conflicts with typedef struct `region' at the top level scope.

Tue Sep 21 14:14:50 1999  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (basic_block): Add eh_beg, eh_end.
        * flow.c (entry_exit_blocks): Update.
        (find_basic_blocks): Don't allocate bb_eh_end, or pass it around.
        Call new functions.
        (find_basic_blocks_1): Don't record eh_list at each bb.  Use
        lists.c functions to allocate insn lists.
        (make_edges): Use eh_beg+eh_end, not the lists.  Split out EH
        edge creation ...
        (make_eh_edge): ... here.  New.
        (move_stray_eh_region_notes): New.
        (record_active_eh_regions): New.
        (delete_unreachable_blocks): Split out block merging ...
        (try_merge_blocks): ... here.  New.
        (merge_blocks_move_predecessor_nojumps): Remove edge arg.
        Dump debugging data.
        (merge_blocks_move_successor_nojumps): Likewise.
        (merge_blocks): Use eh_beg+eh_end to validate block movement.

Tue Sep 21 11:15:03 1999  Martin v. Löwis  <loewis@informatik.hu-berlin.de>

        * extend.texi (Bound member functions): Document unbound pmf
        conversion.

Tue Sep 21 14:55:11 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * flow.c (split_edge): Handle insertion on a fallthrough edge which
        has the EXIT_BLOCK as a dest.

Tue Sep 21 14:51:23 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * flow.c (remove_edge): New function to remove an edge from the
        flow graph.
        (remove_fake_successors): New function to remove fake successor edges.
        (remove_fake_edges): New function to remove all fake edges from the
        flow graph.
        (add_fake_exit_edges): New function to add fake edges from all blocks
        with no successors to the exit block.
        * basic-block.h (remove_fake_edges, add_fake_exit_edges): Add
        prototypes for new functions.

Tue Sep 21 14:49:53 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * config/mips/elf64.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR):
        Use Pmode to determine whether to output .dword or .word.

Tue Sep 21 11:04:34 1999  Alex Samuel  <samuel@codesourcery.com>

        * tree.c (built_in_filename): New variable.
        (BUILT_IN_FILENAME): New macro.
        (init_tree_codes): Allocate built_in_filename.
        (make_node): Use built_in_filename instead of string constant.

Tue Sep 21 14:13:27 1999  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Add fr30 target.
        * configure: Regenerate.
        * config/fr30: New directory.
        * config/fr30/crti.asm: New file.
        * config/fr30/fr30.c: New file.
        * config/fr30/crtn.asm: New file.
        * config/fr30/fr30.h: New file.
        * config/fr30/fr30.md: New file.
        * config/fr30/lib1funcs.asm: New file.
        * config/fr30/t-fr30: New file.
        * config/fr30/xm-fr30.h: New file.

Tue Sep 21 06:45:31 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (merge_blocks_move_successor_nojumps): Delete the
        BARRIER at the end of the successor, not the BARRIER before
        the successor.

        * pa.c (pa_add_gc_roots): Fix thinko in last change.

Tue Sep 21 05:29:17 1999  Richard Earnshaw (rearnsha@arm.com)

        * stmt.c (any_pending_cleanups): Don't crash when
        current_function->stmt is unset.

Tue Sep 21 00:59:49 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * emit-rtl.c (init_emit_once): Initialize const_int_rtx before
        other initializations that may use it for relative offsets.

Mon Sep 20 21:43:25 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/i386/sol2.h (PREFERRED_DEBUGGING_TYPE): Use stabs.
        (ASM_SPEC): Moved from sol2dbg.h.  Added work-around for gas.
        * config/i386/sol2dbg.h: Removed.
        * config/i386/sol2gas.h: New file, to enable gas work-around.
        * configure.in: Use i386/sol2gas.h on Solaris/x86 --with-gas.
        Don't use sol2dbg.h.
        * configure: Rebuilt.

Mon Sep 20 13:29:41 1999  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi (-fthis-is-variable): Remove documentation.

Mon Sep 20 12:59:16 1999  Richard Henderson  <rth@cygnus.com>

        * basic-block.h (compute_bb_for_insn): Declare.
        * flow.c (compute_bb_for_insn): Export.  Don't accept the varray
        to use; set size of basic_block_for_insn directly.
        (find_basic_blocks): Update.

Mon Sep 20 15:11:54 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * flow.c (verify_flow_info): Fix typo, "abort;" -> "abort ();".

Mon Sep 20 14:56:34 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * crtstuff.c (ON_EXIT): Delete empty macro definition.
        (__do_global_ctors_aux): Call atexit(), not ON_EXIT().

Mon Sep 20 15:25:35 1999  Nick Clifton  <nickc@cygnus.com>

        * c-decl.c (c_decode_option): Extend comment.

Mon Sep 20 14:43:37 1999  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (progname): Make 'const char *'
        (flag_print_mem): Move out of main.
        (version_flag): Move out of main.
        (filename): Move out of main.
        (debug_args): Remove g prefix from options.
        (documented_lang_options): Remove cpplib specific options.
        (display_help): Add g prefix to debug options.
        (check_lang_option): Delete this function.
        (decode_d_option): New function: Decode -d... option.
        (decode_f_option): New function: Decode -f... option.
        (decode_W_option): New function: Decode -W... option.
        (decode_g_option): New function: Decode -g... option.
        (independent_decode_option): New function: Decode a language
        independent command line option.
        (main): Invoke lang_decode_option and then
        independent_decode_option on each command line option in
        turn.

Mon Sep 20 05:41:36 1999  Jeffrey A Law  (law@cygnus.com)

        Revert this change.  Gavin's patch to operand_equal_p is a better fix.
         * fold-const.c (fold_range_test): Do not try to fold the range
         test if the rhs or lhs has side effects.

        * basic-block.h (compute_flow_dominators): Declare.

        * gcse.c (alloc_code_hoist_mem): New function.
        (free_code_hoist_mem, compute_code_hoist_vbeinout): Likewise.
        (compute_code_hoist_data, hoist_expr_reaches_here_p): Likewise.
        (hoist_code, one_code_hoisting_pass): Likewise.
        (gcse_main): If optimizing for size, then hoist expressions
        computed in multiple dominated basic blocks.

        * gcse.c (invalid_nonnull_info): New function.
        (delete_null_pointer_checks): Likewise.
        * rtl.h (delete_null_pointer_checks): Declare.
        * toplev.c (rest_of_compilation): Call delete_null_pointer_checks.

        * flow.c (merge_blocks_move_predecessor_nojumps): New function.
        (merge-blocks_move_successor_nojumps): Likewise.
        (merge_blocks): Allow merging of some blocks, even if it requires
        physical movement of the blocks, but not if it requires new jumps.

        * bitmap.c (debug_bitmap_file): Renmaed from bitmap_debug_file.
        Callers and prototype changed.
        * bitmap.h: Fix debug_bitmap and debug_bitmap_file prototypes.

Mon Sep 20 06:56:32 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/sparc/sol2.h (LINK_SPEC): Avoid the duplication of
        -YP when both -p and -pg are present.  From i386/sol2.h.

Mon Sep 20 10:49:05 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * Makefile.in (distclean): Delete tm_p.h.
        * configure.in: Create a new file, "tm_p.h", from a list in
        "tm_p_file". For ix86 systems, set up "tm_p_file" to include
        "i386/i386-protos.h".

        * alias.c: Include "tm_p.h".
        * c-typeck.c: Likewise.
        * calls.c: Likewise.
        * cse.c: Likewise.
        * emit-rtl.c: Likewise.
        * explow.c: Likewise.
        * expmed.c: Likewise.
        * expr.c: Likewise.
        * final.c: Likewise.
        * flow.c: Likewise.
        * fold-const.c: Likewise.
        * function.c: Likewise.
        * gcse.c: Likewise.
        * global.c: Likewise.
        * haifa-sched.c: Likewise.
        * integrate.c: Likewise.
        * jump.c: Likewise.
        * local-alloc.c: Likewise.
        * loop.c: Likewise.
        * optabs.c: Likewise.
        * recog.c: Likewise.
        * reg-stack.c: Likewise.
        * regclass.c: Likewise.
        * regmove.c: Likewise.
        * reload.c: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * resource.c: Likewise.
        * stmt.c: Likewise.
        * stor-layout.c: Likewise.
        * toplev.c: Likewise.
        * tree.c: Likewise.
        * unroll.c: Likewise.
        * genattrtab.c (main): Make generated file include "tm_p.h".
        * genemit.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genrecog.c (main): Likewise.

        * i386.h: Delete all prototypes.
        * i386.c: Include "tm_p.h".
        (ix86_attr_length_default): Call constant_call_address_operand
        with correct number of arguments.
        * i386-protos.h: New file.
        * i386.md (unnamed patterns): Call constant_call_address_operand
        with correct number of arguments.
        (exception_receiver): Call load_pic_register with correct number
        of arguments.

Sun Sep 19 14:18:39 1999  Richard Henderson  <rth@cygnus.com>

        * c-pragma.c (mark_align_stack): Dereference the void* properly.

Sun Sep 19 09:03:40 1999  Mark Mitchell  <mark@codesourcery.com>

        * rtl.h (insns_safe_to_move_p): New function.
        * loop.c (find_and_verify_loops): Use it.
        * rtlanal.c (insns_safe_to_move_p): Define it.

Sun Sep 19 02:54:33 1999  Richard Henderson  <rth@cygnus.com>

        * c-pragma.c: Include ggc.h.
        * Makefile.in (c-pragma.o): Update.

Sat Sep 18 16:01:18 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/i386/sol2.h (CPP_SPEC): Support -[p]threads
        (LIB_SPEC): Likewise.
        (LINK_SPEC): Do not assert -z text with -shared -mimpure-text.
        Reindent -YP/-p/-pg.
        Copied from config/sparc/sol2.h.

Sat Sep 18 11:52:43 1999  Richard Henderson  <rth@cygnus.com>

        * c-pragma.c (mark_align_stack): New.
        (init_pragma): New.
        * c-pragma.h (init_pragma): Declare it.
        * c-lex.c (init_parse): Call it.

Sat Sep 18 15:20:38 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * configure.in: Pick up thread library on Solaris/x86 just
        like on Solaris/sparc.
        * configure: Rebuilt.

Sat Sep 18 11:15:58 1999  Alex Samuel  <samuel@codesourcery.com>

        * rtl.h (global_rtx_index): New enum.
        (global_rtl): Change to array of rtx.
        (pc_rtx, cc0_rtx): Redefine accordingly.
        (cc0_rtx, stack_pointer_rtx, frame_pointer_rtx): Likewise.
        (hard_frame_pointer_rtx, arg_pointer_rtx): Likewise.
        (virtual_incoming_args_rtx, virtual_stack_vars_rtx): Likewise.
        (virtual_outgoing_args_rtx, virtual_cfa): Likewise.
        (const_int_rtx): Change to array of rtx.
        (const0_rtx, const1_rtx, const2_rtx, constm1_rtx): Redefine
        accordingly.
        * emit-rtl.c (global_rtl): Change to array of rtx.
        (const_int_rtx): Change to aray of rtx.
        (gen_rtx_CONST_INT): Redefine accordingly.
        (init_emit_once): Allocate and initialize global_rtl.  Likewise
        for const_int_rtx.  Add both as GC roots.
        * genattrtab.c (global_rtl): Update declaration.

1999-09-17  Ulrich Drepper  <drepper@cygnus.com>

        * Makefile (USER_H): Add iso646.h back.

Sat Sep 18 01:07:21 1999  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (sched_analyze): Use free_INSN_LIST_list instead of
        zapping the LOG_LINKS of sched_before_next_call.

        * pa.h (INSN_SETS_ARE_DELAYED): Delete.
        * pa.c (insn_refs_are_delayed): Renamed from
        insn_sets_and_refs_are_delayed.

Fri Sep 17 15:19:01 1999  Mark Mitchell  <mark@codesourcery.com>

        * functiion.h (struct function): Add x_whole_function_mode_p.
        (retrofit_block): Declare.
        * function.c (retrofit_block): New function.
        (identify_blocks): Add assertions.  Allow an incomplete set of
        block notes if we're still generating code for the function.
        * integrate.c: Include loop.h.
        (expand_inline_function): Call find_loop_tree_blocks to map block
        notes to blocks when in whole-function mode.  Use retrofit_block
        to insert new BLOCKs for the inlined function, rather than
        insert_block.
        * stmt.c (expand_fixup): Likewise.  Don't use pushlevel/polevel.
        * Makefile.in (integrate.o): Depend on loop.h.

Fri Sep 17 15:11:20 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.h (warn_about_unused_variables): Declare.
        * stmt.c (warn_about_unused_variables): New function, split out
        from ...
        (expand_end_bindings): Here.

Fri Sep 17 15:07:37 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (preserve_subexpressions_p): Don't crash when
        current_function->stmt is unset.

Fri Sep 17 15:03:16 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_start_bindings): Allow callers to pass a flag
        indicating that no NOTE_INSN_BLOCK_BEG note is required.
        (expand_start_target_temps): Use it.
        * except.c (expand_eh_region_start_for_decl): Likewise.
        * expr.c (expand_expr): Likewise.

Fri Sep 17 15:05:27 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * fold-const.c (operand_equal_p): Pay attention to side effects.

Fri Sep 17 11:14:17 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * libgcc2.c (L_exit): Check for ON_EXIT, not HAVE_ON_EXIT.
        * sparc/sunos4.h (HAVE_ON_EXIT): Remove.

        * tlink.c (scan_linker_output): Look for keywords before accepting
        a mangled name in quotes.

Thu Sep 16 16:47:08 1999  Richard Henderson  <rth@cygnus.com>

        * alpha/alpha-interix.h (DWARF2_UNWIND_INFO): Define to zero.
        * alpha/osf2or3.h (DWARF2_UNWIND_INFO): Likewise.

Thu Sep 16 16:35:41 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md: Revert Thu Nov 26 change that came in through the
        last gcc2 merge: reinstate (plus (plus ...)) reload patterns.
        Avoid earlyclobber when possible.

Thu Sep 16 18:44:48 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * libgcc2.c (__do_global_ctors): Call atexit with one arg.

        * sparc/sunos4.h (on_exit): Wrap prototype parameters in PARAMS().
        Define HAVE_ON_EXIT.

Thu Sep 16 18:06:35 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (CTYPE_CONV, TOUPPER, TOLOWER): New macros.  Use
        CTYPE_CONV in all ctype macros.

        * cccp.c (initialize_char_syntax): Use uppercase ctype macro
        from system.h.

        * cexp.y (initialize_random_junk): Likewise.

        * c4x.c (c4x_interrupt_function_p, c4x_handle_pragma): Likewise.

        * i370.c (handle_pragma): Likewise.

        * i370.h (ASM_OUTPUT_LABELREF, ASM_OUTPUT_ASCII): Likewise.

        * v850.c (override_options): Likewise.

        * doprint.c (_doprnt): Likewise.

        * fixinc/fixincl.c (main, quoted_file_exists, extract_quoted_files):
        Likewise.

        * fixinc/server.c (load_data): Likewise.

        * fold-const.c (real_hex_to_f): Likewise.

        * genattr.c (write_upcase, gen_attr): Likewise.

        * genattrtab.c (convert_const_symbol_ref, evaluate_eq_attr,
        write_upcase): Likewise.

        * genemit.c (print_code): Likewise.

        * genopinit.c (gen_insn): Likewise.

        * genpeep.c (print_code): Likewise.

        * genrecog.c (print_code): Likewise.

        * optabs.c (init_libfuncs): Likewise.

Thu Sep 16 14:03:32 1999  Mark Mitchell  <mark@codesourcery.com>

        * haifa-sched.c (sched_analyze): Keep the list of notes organized
        in pairs.
        (reemit_notes): Likewise.

Thu Sep 16 11:50:52 1999  Alex Samuel  <samuel@codesourcery.com>

        * ggc.h (ggc_root): Move to ggc-common.c.
        (roots): Remove.
        (ggc_mark_rtx, ggc_mark_tree): Change to macro.
        (ggc_mark_rtvec, ggc_mark_tree_varray): Declare extern.
        (ggc_mark_tree_hash_table, ggc_mark_string, ggc_mark): Likewise.
        (ggc_mark_roots, ggc_mark_rtx_children, ggc_mark_tree_children): New.
        * ggc-common.c (ggc_root): Move from ggc.h.
        (roots): Declare, static.
        (ggc_mark_rtx, ggc_mark_tree): Renamed to...
        (ggc_mark_rtx_children, ggc_mark_tree_children): Don't check for
        null or check/set mark bit.
        (ggc_mark_roots): New.
        * ggc-simple.c (ggc_collect): Call ggc_mark_roots.

Thu Sep 16 11:37:32 1999  Richard Henderson  <rth@cygnus.com>

        * m32r.c: Include toplev.h.
        (*): Add ATTRIBUTE_UNUSED as needed to arguments.
        (gen_compare): Rename swap_p to must_swap to match uses.
        Add default abort case.
        (m32r_output_function_epilogue): Remove unused variables.
        (m32r_print_operand): Use HOST_WIDE_INT_PRINT_HEX.
        * m32r.h (PROTO, STDIO_PROTO): Rename XPROTO; unconditionally
        define to empty parameter list.  Update all uses.
        (predicate decls): Use enum machine_mode not int.
        * m32r.md (movsi): Call abort, not fatal_insn.
        (zero_branch_insn, rev_zero_branch_insn): Add default abort case.

1999-09-14  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.md (movsi_usw): if operand 1 is const_int 0,
        use $0 instead of 0.

Thu Sep 16 10:53:36 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (order_regs_for_reload): Move hard_reg_n_uses
        computation out of loop over hard regs.

Wed Sep 15 21:37:06 1999  Mark Mitchell  <mark@codesourcery.com>

        * function.c (identify_blocks): Don't shadow a variable in an
        outer scope.
        * integrate.c (integrate_decl_tree): Don't use pushlevel,
        pushdecl, or poplevel to build up the new BLOCK tree.
        (expand_inline_function): Likewise.
        (integrate_parm_decls): Likewise.

Wed Sep 15 21:20:38 1999  Mark Mitchell  <mark@codesourcery.com>

        * c-typeck.c (qualify_type): Merge qualifiers from both types.

1999-09-15  Brad Lucier  <lucier@math.purdue.edu>

        * toplev.c: Allow -f[no-]math-errno to set (clear) flag_errno_math
        * invoke.texi: Document this change.

Wed Sep 15 17:56:00 1999  Richard Henderson  <rth@cygnus.com>

        * emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT.
        Free the struct.
        (mark_emit_status): Renamed from mark_emit_state.
        * except.c (mark_eh_status): Renamed from mark_eh_state.
        Check not null before marking.
        (free_eh_status): New.
        * expr.c (mark_expr_status, free_expr_status): New.
        * function.c (free_machine_status): New.
        (free_after_parsing): New.
        (free_after_compilation): Move bits to free_after_parsing; call
        free_eh_status, free_expr_status; zero the marked members of the
        function state.
        (prepare_function_start): No can_garbage_collect.
        Call init_eh_for_function.
        (expand_dummy_function_end): Free up current_function state.
        (mark_function_status): Renamed from mark_function_state.
        (mark_function_chain): No can_garbage_collect.  Call mark_expr_status.
        * function.h (struct function): No can_garbage_collect.
        (free_machine_status, free_after_parsing): Declare.
        (free_eh_status, free_expr_status): Declare.
        * ggc.h (mark_expr_status): Declare.
        * stmt.c (free_stmt_status): Free the struct.
        (mark_stmt_status): Renamed from mark_stmt_state.
        (init_stmt): Don't call init_eh.
        (init_stmt_for_function): Don't call init_eh_for_function.
        * toplev.c (compile_file): Call init_eh.
        (rest_of_compilation): Free basic block info before ggc_collect.
        Call free_after_parsing; conditionally call free_after_compilation.
        * varasm.c (mark_varasm_status): Renamed from mark_varasm_state.
        Check not null before marking.
        (free_varasm_status): Don't check DECL_DEFER_OUTPUT.  Free the struct.

Wed Sep 15 17:53:16 1999  Richard Henderson  <rth@cygnus.com>

        * c-lex.c (yylex): Initialize warn.

Wed Sep 15 18:35:38 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (emit_move_sequence): Properly set the mode of the scratch
        register when performing secondary reloads for the SAR register.

Wed Sep 15 15:51:52 1999  Mark Mitchell  <mark@codesourcery.com>

        * rtl.h (NOTE_BLOCK_NUMBER): Replace with ...
        (NOTE_BLOCK): New macro.
        (NOTE_BLOCK_LIVE_RANGE_BLOCK): Remove.
        * function.h (identify_blocks): Change prototype.
        * function.c (identify_blocks): Simplify.
        (reorder_blocks): Likewise.
        * ggc-common.c (ggc_mark_rtx): Mark the BLOCK associated with a
        NOTE_INSN_BLOCK_{BEG,END}.
        * haifa-sched.c (sched_analyze): Don't put NOTE_BLOCK_NUMBER on
        the list of saved notes if the note isn't a
        NOTE_INSN_BLOCK_{BEG,END}.
        (move_insn1): Use NOTE_EH_HANDLER in comment, rather than
        NOTE_BLOCK_NUMBER.
        (reemit_notes): Adjust recreation of notes to reflect new saved
        note structure.
        * print-rtl.c (print_rtx): Print the address of the BLOCK when
        printing a block note.
        * stmt.c (block_vector): Remove.
        (find_loop_tree_blocks): Simplify.
        (unroll_block_trees): Likewise.
        * tree.h (reorder_block): Change prototype.

Wed Sep 15 14:39:35 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * gbl-ctors.h: Lose HAVE_ATEXIT.  Don't define ON_EXIT.
        * libgcc2.c: Lose obsolete defn of WEAK_ALIAS.
        (__bb_init_func, __bb_init_prg): Use atexit instead of ON_EXIT.
        (__do_global_dtors): Likewise.  Don't mess with _exit_dummy_decl.
        (atexit, exit): Simplify.
        * tm.texi: Document NEED_ATEXIT and ON_EXIT.  Remove HAVE_ATEXIT.
        * config/lots: Remove defns of HAVE_ATEXIT.

Wed Sep 15 10:25:12 1999  Mark Mitchell  <mark@codesourcery.com>

        * calls.c (precompute_arguments): Fix typo in comment.
        * expr.c (preexpand_calls): Don't preexpand the cleanup in a
        TARGET_EXPR.

Wed Sep 15 09:59:59 1999  Mark Mitchell  <mark@codesourcery.com>

        * dsp16xx.c (override_options): Fix typos in GC root registration.

Wed Sep 15 15:23:28 1999  Philip Blundell  <pb@nexus.co.uk>

        * config/arm/linux-elf.h (MAKE_DECL_ONE_ONLY): Copy definition
        from config/svr4.h.
        (UNIQUE_SECTION_P, UNIQUE_SECTION): Likewise.
        (FUNCTION_PROFILER): Redefine appropriately for Linux.
        (CC1_SPEC): Likewise.

Wed Sep 15 10:09:48 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattr.c (main): Add extern prototype.  Call return, not exit.
        * genattrtab.c (main): Likewise.
        * gencheck.c (main): Likewise.
        * gencodes.c (main): Likewise.
        * genconfig.c (main): Likewise.
        * genemit.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genflags.c (main): Likewise.
        * gengenrtl.c (main): Likewise.
        * genopinit.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genpeep.c (main): Likewise.
        * genrecog.c (main): Likewise.

        * genattr.c (get_insn_name): Mark parameter with ATTRIBUTE_UNUSED.
        * genattrtab.c (get_insn_name): Likewise.
        * gencodes.c (get_insn_name): Likewise.
        * genconfig.c (get_insn_name): Likewise.
        * genemit.c (get_insn_name): Likewise.
        * genextract.c (get_insn_name): Likewise.
        * genflags.c (get_insn_name): Likewise.
        * genopinit.c (get_insn_name): Likewise.
        * genpeep.c (get_insn_name): Likewise.

        * gencheck.c (usage): Add static prototype.
        * genextract.c (print_path): Constify a char*.
        * genopinit.c (optabs): Likewise.
        * genoutput.c (operand_data, data, output_predicate_decls,
        compare_operands): Likewise.
        * genrecog.c (write_tree): Add default case in switch.

Wed Sep 15 09:59:16 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.h (get_insn_name, print_rtl_with_bb): Add prototypes.

        * print-rtl.c (get_insn_name): Remove prototype.

        * toplev.h (progname): Declare const.

        * toplev.c (init_decl_processing, init_obstacks, init_tree_codes,
        init_regs, init_optabs, init_stmt, init_reg_sets, dump_flow_info,
        dump_sched_info, dump_local_alloc, regset_release_memory,
        print_rtl, print_rtl_with_bb, rest_of_decl_compilation,
        error_with_file_and_line, error_with_decl, error_for_asm, error,
        fatal, warning_with_file_and_line, warning_with_decl, warning,
        pedwarn, pedwarn_with_decl, pedwarn_with_file_and_line, sorry):
        Remove redundant prototypes.

        (notice, check_lang_option, report_file_and_line, vnotice,
        mark_file_stack): Add static prototype.
        (set_fatal_function): Add prototype.
        (vnotice, report_file_and_line, set_fatal_function,
        check_lang_option): Constify a char*.
        (main): Prototype.  Call return, not exit.

Wed Sep 15 09:50:18 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * aclocal.m4 (AC_GCC_C_LONG_DOUBLE): New macro.

        * configure.in (AC_GCC_C_LONG_DOUBLE): Call it.

        * gansidecl.h (HAVE_LONG_DOUBLE): Define if gcc for stage2.

        * ggc-simple.c (HAVE_LONG_DOUBLE): Test before using long double.

Wed Sep 15 11:04:43 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * function.c (assign_parms): Delete arg SECOND_TIME.  Don't test it,
        behave as if it's zero in all cases.
        (expand_function_start): Adjust call to assign_parms.
        * tree.h (assign_parms): Adjust prototype.
        * objc/objc-act.c (hack_method_prototype): Adjust call to
        assign_parms.

Tue Sep 14 21:47:06 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (FIXED_BASE_PLUS_P): Do not consider referneces to
        arg_pointer_rtx fixed if the argument pointer register is
        not fixed.
        (NONZERO_BASE_PLUS_P): Likewise.

Tue Sep 14 20:26:02 1999  Richard Henderson  <rth@cygnus.com>

        * rtl.def (match_insn, match_insn2): Remove match_insn; rename
        match_insn2 to match_insn.
        * genrecog.c (add_to_sequence): Rename MATCH_INSN2.

Tue Sep 14 20:10:29 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (USER_H): Remove va-foo.h.

        * ginclude/{va-alpha.h,va-arc.h,va-c4x.h,va-clipper.h,va-h8300.h,
        va-i860.h,va-i960.h,va-m32r.h,va-m88k.h,va-mips.h,va-mn10200.h,
        va-mn10300.h,va-pa.h,va-ppc.h,va-pyr.h,va-sh.h,va-sparc.h,
        va-spur.h,va-v850.h}: Remove.

Tue Sep 14 19:43:16 1999  Richard Henderson  <rth@cygnus.com>

        * sparc/sparc.md (eligible_for_return_delay): New attribute.
        (in_return_delay): Use it instead of match_insn.

Tue Sep 14 23:05:37 1999  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * config/alpha/va_list.h (va-alpha.h): Do not include.
        (__gnuc_va_list): Typedef as in varargs.h.

Tue Sep 14 18:14:03 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-common.c (ggc_mark_tree): Mark DECL_SOURCE_FILE and
        DECL_LIVE_RANGE_RTL.

Tue Sep 14 16:47:08 1999  Mark Mitchell  <mark@codesourcery.com>

        * except.c (expand_eh_region_start_for_decl): Use NOTE_EH_HANDLER,
        not NOTE_BLOCK_NUMBER.
        (expand_eh_region_end): Likewise.
        (find_exception_handler_labels): Likewise.
        (scan_region): Likewise.
        (exception_optimize): Likewise.
        (update_rethrow_references): Likewise.
        (set_insn_eh_region): Likewise.
        * final.c (final_scan_insn): Likewise.
        * flow.c (make_edges): Likewise.
        * integrate.c (expand_inline_function): Likewise.
        * print-rtl.c (print_rtx): Likewise.

Tue Sep 14 16:30:16 1999  Richard Henderson  <rth@cygnus.com>

        * ginclude/stdarg.h, ginclude/varargs.h: Implement in
        terms of builtin functions and types.

        * mips.c (mips_build_va_list): New.
        (mips_va_start, mips_va_arg): New.
        * mips.h (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START, EXPAND_BUILTIN_VA_ARG): New.

        * sh.c (sh_builtin_saveregs): Use get_varargs_alias_set.
        (sh_build_va_list, sh_va_start, sh_va_arg): New.
        * sh.h (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START, EXPAND_BUILTIN_VA_ARG): New.

Tue Sep 14 16:20:24 1999  Richard Henderson  <rth@cygnus.com>

        * recog.h (struct recog_data): Make dup_num, operand_address_p,
        n_operands, n_dups, n_alternatives `char' instead of `unsigned char'.
        (struct insn_data): Likewise with n_operands, n_dups,
        n_alternatives, output_format.
        * regclass.c (scan_one_insn): Cast n_operands to int before
        arithmetic inside comparison.

Tue Sep 14 15:13:36 1999  Richard Henderson  <rth@cygnus.com>

        * toplev.c (compile_function): Unconditionally emit nop.

Tue Sep 14 14:41:47 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * haifa-sched.c (actual_hazard): Move declaration of variable
        `this_cost' into the scope where it is used.

Tue Sep 14 14:14:28 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-pragma.c (handle_pragma_token): Wrap variables `name' and
        `value' in HANDLE_PRAGMA_WEAK.  Wrap variable `align' in
        HANDLE_PRAGMA_PACK||HANDLE_PRAGMA_PACK_PUSH_POP.

        * genrecog.c (make_insn_sequence): Call memset, not bzero.

        * jump.c (find_insert_position): Don't declare or define unless
        !HAVE_conditional_arithmetic.
        (returnjump_p_1, delete_prior_computation): Add static prototypes.

        * mips-tdump.c (fatal, fancy_abort, main): Add extern prototypes.

        * recog.c (offsettable_address_p): Prototype function pointer.
        (preprocess_constraints): Call memset, not bzero.

        * tree.c (tree_node_kind_names): Constify a char*.  Make static.
        (gcc_obstack_init): Don't declare.
        (fix_sizetype): Add static prototype.
        (gcc_obstack_init): Use prototype casts in call to _obstack_begin.
        (tree_cons): Call memset, not bzero.

        * varasm.c (remove_from_pending_weak_list): Wrap declaration and
        definition in macro ASM_WEAKEN_LABEL.
        (mark_const_hash_entry): Add static prototype.

Tue Sep 14 12:22:50 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-lex.c (handle_generic_pragma): Remove unused variable `c'.

        * unroll.c (find_common_reg_term, subtract_reg_term,
        loop_find_equiv_value): Add static prototypes.
        (unroll_loop): Wrap variable `prev' in macro HAVE_cc0.
        (copy_loop_body): Remove unreachable break statement.

        * sparc.c (sparc_va_arg): Remove unused variable `tmp'.

        * sparc.h (sparc_va_start, sparc_va_arg): Add extern prototypes.

Tue Sep 14 15:28:00 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        Undo some changes from the gcc2 merge:
        * rtl.def (CONSTANT_P_RTX): Fix the comment for this rtx code.
        * emit-rtl.c (gen_rtx_REG): Don't test special reg rtx's for null
        pointers.

        Undo this change:
        Sat Oct  3 07:20:28 1998  Stephen L Moshier  <moshier@world.std.com>
        * emit-rtl.c (gen_lowpart_common): Disable optimization of
        initialized float-int union if the value is a NaN.

Tue Sep 14 04:03:44 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * gthr-win32.h: New file.

        * i386/winnt.c (i386_pe_valid_decl_attribute_p): Recognize
        shared as a valid attribute.
        * i386/cygwin.h (ASM_OUTPUT_SECTION): Handle shared attribute.
        * extend.texi: Document `shared' variable attribute.

Tue Sep 14 04:01:46 1999  Loren Rittle  <ljrittle@acm.org>

        * configure.in: Handle --enable-threads on FreeBSD.
        * configure: Rebuit.

Tue Sep 14 03:58:44 1999  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

        * configure.in: Add crtbeginS.o, crtendS.o for mips-linux; add
        thread support.
        * configure: Rebuilt.

Tue Sep 14 03:47:23 1999  Joel Sherrill <joel@OARcorp.com>
                          Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca>
                          Rosimildo DaSilva <rdasilva@connecttel.com>

        * configure.in (m68k-*-rtemscoff*): Added.
        * configure.in (mips64orion-*-rtems*): Converted to ELF.
        * configure.in (sparc-*-rtemsaout*): Added as alias for old
        sparc-rtems configuration.
        * configure.in (sparc-*-rtemself*): Added.
        * configure.in (sparc-*-rtems*): Now ELF not a.out.
        * config/i386/rtems.h: Added comment.
        * config/sparc/rtemself.h: New file.

        * configure.in (m68k-rtemself): Added.
        * config/elfos.h: Added ifndef wrapper for DWARF2_DEBUGGING_INFO
        and DWARF_DEBUGGING_INFO.
        * config/m68k/crti.s: New file.
        * config/m68k/crtn.s: New file.
        * config/m68k/t-crtstuff: New file.
        * config/m68k/rtemself.h: New file.

        * configure.in (i[[34567]]86-*-rtemself*): Now uses crtstuff for
        global ctor/dtor and C++ exception handling.
        * config/i386/rtemself.h: Now uses crtstuff (crti.o + crtbegin.o)
        for STARTFILE_SPEC and crtstuff (crtend.o + crtn.o) for
        ENDFILE_SPEC.
        * config/i386/t-rtems-i386: New File.

Tue Sep 14 09:47:41 1999  Andreas Schwab  <schwab@suse.de>

        * stmt.c (expand_end_case): Return right away if the case stack is
        empty.

Tue Sep 14 01:47:19 1999  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (version.c): Remove rule incorrectly brought in from
        the gcc2 merge.

Tue Sep 14 01:42:27 1999  Marc Espie <espie@cvs.openbsd.org>

        * Makefile.in:  Prepend $(SHELL) to move-if-change calls.
        * msdos/top.sed:  Take into account a prepended $(SHELL) to
        move-if-change.
        * winnt/config-nt.sed:  Likewise.  Kill bogus substitution.

        * objc/Make-lang.in: Prepend $(SHELL) to move-if-change calls.

Tue Sep 14 01:38:52 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (fixup_match_1): Don't change an unchanging register.
        (stable_but_for_p): Renamed to:
        (stable_and_no_regs_but_for_p).  Reject unchanging registers too.
        Changed all callers.

Tue Sep 14 01:33:15 1999  Andreas Schwab  <schwab@suse.de>

        * loop.c (strength_reduce): Don't call reg_used_between_p if the
        insn from BL2 is after the insn from BL.

Mon Sep 13 21:06:01 1999  Richard Henderson  <rth@cygnus.com>

        * recog.h (INSN_OUTPUT_FORMAT_*): New.
        (struct insn_data): Merge `template' and `outfun' into `output'.
        Add `output_format'.
        * genoutput.c (INSN_OUTPUT_FORMAT_*): New.
        (struct data): Remove `outfun'; add `output_format'.
        (name_for_index): Remove declaration.
        (output_insn_data): Handle output formats.
        (process_template): Emit the bare array for @.
        (gen_expand, gen_split): Set output_format to NONE.
        * output.h (get_insn_template): Declare.
        * final.c (get_insn_template): New.
        (final_scan_insn): Use it.
        * toplev.c (compile_file): Likewise.

        * c4x/c4x.c (c4x_process_after_reload): Likewise.
        * i860/i860.c (output_delayed_branch): Likewise.
        (output_delay_insn): Likewise.

1999-09-13  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

        * rtl.c (obstack_alloc_rtx): Removed.

1999-09-13 17:03 -0700  Zack Weinberg  <zack@bitmover.com>

        * config/gmicro/gmicro.md: Disable move DF->DI anonymous pattern.

Mon Sep 13 15:21:46 1999  Richard Henderson  <rth@cygnus.com>

        * i386.c (call_insn_operand): Reject const_int.
        (expander_call_insn_operand): Use call_insn_operand.

Mon Sep 13 17:44:28 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gcc.c (getrusage): Wrap prototype arguments in PROTO().

1999-09-13 12:18 -0700  Zack Weinberg  <zack@bitmover.com>

        * config/i370/i370.md (mulsi, divsi, modsi anonymous insns):
        Use DImode operation.

1999-09-13 12:13 -0700  Zack Weinberg  <zack@bitmover.com>

        * gcc.c: Include sys/resource.h.
        (report_times): New flag.
        (execute):  If report_times is set, calculate and report the
        CPU time consumed by each subprocess.

        (rus, prus): New globals.
        (option_map): Add --time.
        (display_help): Document -time.
        (process_command): Set report_times if -time is given.
        Turn off -pipe if -time is given.

        * invoke.texi: Document new option -time.

        * configure.in: Check for getrusage.  Check if we have to
        prototype getrusage.
        * acconfig.h: Add NEED_DECLARATION_GETRUSAGE.
        * configure: Regenerate.
        * config.in: Regenerate.

Mon Sep 13 12:57:06 1999  Dave Brolley  <brolley@cygnus.com>

        * cppinit.c (append_include_chain): Initialize 'next' and 'alloc'
        fields.

Mon Sep 13 10:01:33 1999  Nick Clifton  <nickc@cygnus.com>

        * config/fp-bit.c: Define L_thenan_sf or L_thenan_df (as
        appropriate) if FINE_GRAINED_LIBRARIES is not defined.
        (nan): Return _thenan_sf or _thenan_df as appropriate.
        (L_thenan_sf): Define _thenan_sf.
        (L_thenan_df): Define _thenan_df.

        * Makefile.in (FPBIT_FUNCS): Add _thenan_sf.
        (DPBIT_FUNCS): Add _thenan_df.

Mon Sep 13 09:38:53 1999  Andreas Schwab  <schwab@suse.de>

        * tree.c (fix_sizetype):  Exchange the types for TYPE_SIZE and
        TYPE_SIZE_UNIT.

Sun Sep 12 23:28:20 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (gcc.o, gccspec.o, cppspec.o): Depend on gcc.h.

        * gcc.h: New file.
        (lang_specific_driver): Don't take a function pointer parameter.
        All callers changed.

        * gcc.c: Include gcc.h.
        (do_spec, fancy_abort,lang_specific_driver,lang_specific_pre_link,
        lang_specific_extra_outfiles, fatal): Don't declare.
        (multilib_defaults_raw): Constify.
        (read_specs): Call memset, rather than bzero.
        (main): Call return, not exit.
        (lookup_compiler): Call memcpy, not bcopy.
        (fatal): Make extern.

        * cppspec.c: Include gcc.h.
        (lang_specific_driver): Initialize variable `quote'.  Constify a
        char*.  All calls to the function pointer parameter now
        explicitly call `fatal'.

        * gccspec.c (lang_specific_driver): Include gcc.h.

Sun Sep 12 19:52:10 1999  Richard Earnshaw <rearnsha@arm.com>

        * arm.c (note_invalid_constants): Use recog_data.operand_type
        for recog_op_type.

Sun Sep 12 15:53:20 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * tree.h (build_common_tree_nodes, build_common_tree_nodes_2):
        Declare.

        * reload.h (reload_in, reload_out, reload_in_reg, reload_out_reg,
        reload_reg_class, reload_inmode, reload_outmode, reload_optional,
        reload_nongroup, reload_inc, reload_opnum, reload_secondary_p,
        reload_secondary_in_reload, reload_secondary_out_reload,
        reload_secondary_in_icode, reload_secondary_out_icode,
        reload_reg_rtx, reload_when_needed): Delete declarations.
        (struct reload): New structure.
        (rld): Declare new array.
        * reload.c (reload_in, reload_out, reload_in_reg, reload_out_reg,
        reload_reg_class, reload_inmode, reload_outmode, reload_optional,
        reload_nongroup, reload_inc, reload_opnum, reload_secondary_p,
        reload_secondary_in_reload, reload_secondary_out_reload,
        reload_secondary_in_icode, reload_secondary_out_icode,
        reload_reg_rtx, reload_when_needed): Delete definitions.
        (rld): New array.
        (whole file): Replace uses of the deleted arrays with uses of rld.
        * reload1.c (whole file): Replace uses of the deleted arrays with
        uses of rld.
        (choose_reload_regs): Copy in/out of save_reload_reg_rtx with
        explicit loops, not with bcopy.

Sun Sep 12 05:00:24 1999  Richard Henderson  <rth@cygnus.com>

        * recog.h (insn_template, insn_outfun, insn_n_operands, insn_n_dups,
        insn_n_alternatives, insn_operand_constraint, insn_operand_address_p,
        insn_operand_mode, insn_operand_strict_low, insn_operand_predicate,
        insn_name): Delete and consolidate into new structures.
        (insn_operand_predicate_fn): New.
        (insn_output_fn): New.
        (insn_gen_fn): New.
        (struct insn_operand_data): New.
        (struct insn_data): New.
        (insn_data): New.
        (OUT_FCN): Update for insn_data change.
        * builtins.c (expand_builtin_strlen): Likewise.
        (expand_builtin_memcmp): Likewise.
        * combine.c (make_extraction, simplify_comparison): Likewise.
        * cse.c (canon_reg, cse_insn): Likewise.
        * explow.c (allocate_dynamic_stack_space, probe_stack_range): Likewise.
        * expmed.c (store_bit_field, extract_bit_field): Likewise.
        (emit_store_flag): Likewise.
        * expr.c (convert_move, emit_block_move): Likewise.
        (clear_storage, emit_push_insn, expand_increment): Likewise.
        (do_store_flag): Likewise.
        * expr.h (GEN_FCN): Likewise.
        (insn_gen_function): Die.
        * final.c (final_scan_insn): Update for insn_data change.
        (output_asm_name): Likewise.
        * function.c (fixup_var_refs_1): Likewise.
        * loop.c (check_dbra_loop): Likewise.
        * optabs.c (expand_binop, expand_twoval_binop): Likewise.
        (expand_unop, expand_complex_abs, emit_unop_insn): Likewise.
        (prepare_cmp_insn, prepare_operand, emit_indirect_jump): Likewise.
        (emit_conditional_move, gen_add2_insn, gen_sub2_insn): Likewise.
        * recog.c (validate_replace_rtx_1, extract_insn): Likewise.
        * regmove.c (gen_add3_insn): Likewise.
        * reload.c (push_secondary_reload, combine_reloads): Likewise.
        (find_reloads, find_reloads_address_1): Likewise.
        (debug_reload_to_stream): Likewise.
        * reload1.c (emit_reload_insns, gen_reload): Likewise.
        * stmt.c (expand_end_case): Likewise.
        * toplev.c (compile_file): Likewise.

        * c4x/c4x.c (c4x_process_after_reload): Likewise.
        * i860/i860.c (output_delayed_branch, output_delay_insn): Likewise.

        * print-rtl.c (insn_name_ptr): Remove declaration.
        (get_insn_name): Declare.
        (print_rtx): Use it.
        * genoutput.c (insn_name_ptr): Remove.
        (next_operand_number): New.
        (struct operand_data): New.
        (null_operand, odata, odata_end): New.
        (struct data): Use struct operand_data.
        (idata, idata_end): Renamed from insn_data and end_of_insn_data.
        (get_insn_name): Renamed from name_for_index.
        (output_prologue): Define NO_MD_PROTOTYPES.
        (output_predicate_decls): Break out from output_epilogue.
        Iterate over the operands list.
        (output_operand_data): Break out from output_epilogue.  Emit
        just the operands list.
        (output_insn_data): Break out from output_epilogue.  Emit just
        the insn data.
        (output_epilogue): Remove.
        (output_get_insn_name): New.
        (constraints, op_n_alternatives, predicates, address_p): Die.
        (modes, strict_low, seen): Die.
        (scan_operands): Take new param `d' instead of writing to
        seven global variables.
        (compare_operands): New.
        (place_operands): New.
        (validate_insn_alternatives): Update for struct data change.
        (gen_insn): Don't zero or copy 7 global arrays.  Update for
        scan_operands; call place_operands.
        (gen_peephole, gen_expand, gen_split): Likewise.
        (main): Update for new output routines.

        * genattr.c (insn_name_ptr): Remove.
        (get_insn_name): New function.
        * genattrtab.c, gencodes.c, genconfig.c, genemit.c: Likewise.
        * genextract.c, genflags.c, genopinit.c, genpeep.c: Likewise.
        * genrecog.c: Likewise.

        * alpha.md (adddi3): Make `pattern' array static.

Sun Sep 12 22:05:21 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (c4x_rpts_cycles_string,
        c4x_cpu_version_string): Constify char *.
        * config/c4x/c4x.c (c4x_rpts_cycles_string,
        c4x_cpu_version_string): Likewise.

Sat Sep 11 23:28:33 1999  Richard Henderson  <rth@cygnus.com>

        * tree.c (save_tree_status): Revert 10 Sep change.
        (restore_tree_status): Likewise.  Call obstack_free with NULL
        before freeing the obstack proper.

Sat Sep 11 23:23:46 1999  Richard Henderson  <rth@cygnus.com>

        * cse.c (cse_main): If gc'ing, collect around cse_basic_block.

        * ggc-simple.c (ggc_pop_context): Fold outstanding bytes into
        surrounding context.

Sat Sep 11 19:52:43 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (type_hash_canon): Put all types in the hash-table, when
        GC'ing.

Sat Sep 11 18:37:04 1999  Richard Henderson  <rth@cygnus.com>

        * recog.h (struct recog_data, recog_data): New.
        (recog_foo variables): Kill.
        * recog.c (recog_operand, recog_operand_loc): Kill.
        (recog_dup_loc, recog_dup_num, recog_n_operands): Kill.
        (recog_n_dups, recog_n_alternatives, recog_operand_mode): Kill.
        (recog_constraints, recog_op_type, recog_operand_address_p): Kill.
        (recog_data): Define.
        (extract_insn): Update all recog_foo references to use recog_data.
        (preprocess_constraints, constrain_operands): Likewise.
        * final.c (final_scan_insn, cleanup_subreg_operands): Likewise.
        * genattrtab.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genoutput.c: Likewise.
        * genrecog.c (write_subroutine, main): Likewise.
        * local-alloc.c (block_alloc): Likewise.
        * reg-stack.c (record_asm_reg_life, subst_asm_stack_regs): Likewise.
        * regclass.c (scan_one_insn, record_reg_classes): Likewise.
        * regmove.c (regmove_optimize, find_matches, fixup_match_1): Likewise.
        * reload.c (find_reloads, find_reloads_toplev): Likewise.
        * reload1.c (maybe_fix_stack_asms, eliminate_regs_in_insn): Likewise.
        (reload_cse_simplify_operands): Likewise.

        * arc/arc.c (arc_final_prescan_insn): Likewise.
        * arm/arm.c (note_invalid_constants, arm_final_prescan_insn): Likewise.
        * h8300/h8300.c (notice_update_cc): Likewise.
        * i386/i386.c (ix86_attr_length_default, ix86_agi_dependant): Likewise.
        * i860/i860.c (output_delayed_branch, output_delay_insn): Likewise.
        * mn10200/mn10200.c (notice_update_cc): Likewise.
        * mn10300/mn10300.c (notice_update_cc): Likewise.
        * romp/romp.c (update_cc): Likewise.
        * sparc/sparc.c (check_pic): Likewise.
        * v850/v850.c (notice_update_cc): Likewise.

        * genemit.c (main): Don't declare recog_operand.

Sat Sep 11 12:41:55 1999  Alex Samuel  <samuel@codesourcery.com>

        * ggc.h (rtvec_def): Forward declare.
        (tree_node): Likewise.
        (ggc_root): Define.
        (roots): Declare.
        (ggc_set_mark_rtx): Add prototype.
        (ggc_set_mark_rtvec): Likewise.
        (ggc_set_mark_tree): Likewise.
        * ggc-simple.c (ggc_root): Don't define.
        (roots): Don't declare.
        (ggc_mark_rtx): Remove.
        (ggc_mark_rtvec): Likewise.
        (ggc_mark_tree): Likewise.
        (ggc_mark_varray): Likewise.
        (ggc_mark_tree_hash_table_entry): Likewise.
        (ggc_mark_tree_hash_table): Likewise.
        (ggc_set_mart_rtx): New function.
        (ggc_set_mark_rtvec): Likewise.
        (ggc_set_mark_tree): Likewise.
        (ggc_add_root): Remove.
        (ggc_add_rtx_root): Likewise.
        (ggc_remove_tree_root): Likewise.
        (ggc_add_string_root): Likewise.
        (ggc_add_tree_varray_root): Likewise.
        (ggc_add_tree_hash_table_root): Likewise.
        (ggc_del_root): Likewise.
        (ggc_mark_rtx_ptr): Likewise.
        (ggc_mark_tree_ptr): Likewise.
        (ggc_mark_string_ptr): Likewise.
        (ggc_mark_tree_varray_ptr): Likewise.
        (ggc_mark_tree_hash_table_ptr): Likewise.
        * ggc-common.c: New file.
        * Makefile.in (OBJS): Add ggc-common.o.
        (ggc-common.o): List dependencies.

1999-09-10 22:37 -0700  Zack Weinberg  <zack@bitmover.com>

        * cppalloc.c (xstrdup): Use memcpy.
        * cpperror.c (cpp_print_containing_files): Don't use
        cpp_notice.
        * cpplib.c (conditional_skip): Set temp->lineno.
        (do_endif): Make error message less obscure.
        (if_directive_name): New function.
        (cpp_get_token [case EOF]): Unwind the if stack and generate
        error messages for each unterminated conditional in this file.
        (parse_string):  Do not behave differently if -traditional.

Fri Sep 10 14:04:07 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_va_arg): Cope with an array-type
        va_list decomposing to pointer-type.
        * rs6000.c (rs6000_va_start) Unwrap the ARRAY_TYPE to get at fields.
        (rs6000_va_arg): Likewise.

Fri Sep 10 13:21:21 1999  Jim Wilson  <wilson@cygnus.com>

        * except.c (start_dynamic_handler): Compute size using
        STACK_SAVEAREA_MODE.

Fri Sep 10 16:01:23 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * protoize.c: Remove various __STDC__ and POSIX hacks.  Don't
        include directory headers.  Don't define strrchr.  Don't provide
        my_* replacement functions.  Prefer PTR over `pointer_type'.
        Don't prototype system functions.  Don't redefine getopt.

        (shortpath, fancy_abort, notice, savestring, dupnstr, substr,
        safe_read, safe_write, save_pointers, restore_pointers,
        is_id_char, in_system_include_dir, directory_specified_p,
        file_excluded_p, unexpand_if_needed, abspath, check_aux_info,
        find_corresponding_lparen, referenced_file_is_newer,
        save_def_or_dec, munge_compile_params, gen_aux_info_file,
        process_aux_info_file, identify_lineno, check_source,
        seek_to_line, forward_to_next_token_char, output_bytes,
        output_string, output_up_to, other_variable_style_function,
        find_rightmost_formals_list, do_cleaning, careful_find_l_paren,
        do_processing, is_syscalls_file, rename_c_file, find_extern_def,
        find_static_definition, connect_defs_and_decs, add_local_decl,
        add_global_decls, needs_to_be_converted, visit_each_hash_node,
        add_symbol, lookup, free_def_dec, find_file, reverse_def_dec_list,
        edit_fn_declaration, edit_formals_lists, edit_fn_definition,
        scan_for_missed_items, edit_file, string_list_cons): Add static
        prototypes.
        (standard_exec_prefix, target_machine, target_version,
        default_syscalls_dir, string_list, string_list_cons, find_file,
        do_cleaning): Constify a char*.
        (safe_read, safe_write): Use PTR, not a char*.
        (is_id_char): Take an int, not a char.
        (main): Add prototype.  Call return, not exit.

Fri Sep 10 16:48:26 1999  Andrew Haley  <aph@cygnus.com>

        * tree.c (type_hash_lookup): Check for equal TYPE_ALIGN fields
        when comparing types.

Fri Sep 10 08:43:32 1999  Richard Henderson  <rth@cygnus.com>

        * loop.c (basic_induction_var): Typo NULL_RTX -> NULL.
        (strength_reduce): Release the varrays from the no-bivs early exit.

        * reload1.c (order_regs_for_reload): Init hard_reg_n_uses before
        the loop over the registers.

        * tree.c (save_tree_status): Set maybepermanent_firstobj NULL
        for a new obstack.
        (restore_tree_status): Check that instead when freeing the obstack.

Wed Sep  8 16:12:04 1999  Andrew Haley  <aph@cygnus.com>

        * alias.c (rtx_equal_for_memref_p): Allow CONST_DOUBLEs to be used
        as pointers.

Fri Sep 10 11:58:55 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * i386.md (ashlqi3): For NON_QI_REG_P regs, use sall.  Fix some
        operand size modifiers.

Fri Sep 10 10:32:32 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-common.c (c_common_nodes_and_builtins): Don't build
        va_list_type_node.
        * c-common.h (enum c_tree_index and related accesor macros): Remove
        everything now declared in tree.h.
        * c-decl.c (CHAR_TYPE_SIZE, SHORT_TYPE_SIZE, INT_TYPE_SIZE,
        LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE, WCHAR_UNSIGNED, FLOAT_TYPE_SIZE,
        DOUBLE_TYPE_SIZE, LONG_DOUBLE_TYPE_SIZE): Don't provide defaults.
        (error_mark_node, void_type_node, char_type_node, integer_type_node,
        unsigned_type_node, ptr_type_node, va_list_type_node,
        integer_zero_node, null_pointer_node, integer_one_node): Delete.
        (init_decl_processing): Call build_common_tree_nodes and
        build_common_tree_nodes_2 instead of building their nodes here.
        Don't add roots for these nodes.
        * stor-layout.c (size_zero_node, size_one_node): Delete.
        (set_sizetype): Make a new node for bitsizetype each time.
        * tree.c (global_trees): New variable.
        (init_obstacks): Add a gc root for it.
        (CHAR_TYPE_SIZE, SHORT_TYPE_SIZE, INT_TYPE_SIZE,
        LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE, FLOAT_TYPE_SIZE,
        DOUBLE_TYPE_SIZE, LONG_DOUBLE_TYPE_SIZE): Provide defaults.
        (build_common_tree_nodes): New function.
        (fix_sizetype): New function.
        (build_common_tree_nodes_2): New function.
        * tree.h (enum tree_index): New.
        (global_trees): Declare.
        Add accessor macros for all nodes now moved to global_trees.
        Delete their declarations.

Thu Sep  9 20:15:46 1999  Richard Henderson  <rth@cygnus.com>

        * c-decl.c (finish_function): When processing a nested function,
        push and pop GC context around rest_of_compilation.

Thu Sep  9 16:42:06 1999  Richard Henderson  <rth@cygnus.com>

        * i386.c (override_options): Remove ppro, pentium2, and p2 as aliases.
        Default ix86_arch to PROCESSOR_I386.
        * i386.h (CC1_CPU_SPEC): Don't add -march=foo.  Remove -mno-foo.
        (CPP_486_SPEC, CPP_586_SPEC, CPP_686_SPEC): Delete.
        (CPP_CPU_DEFAULT_SPEC): Define to __tune_foo__.
        (CC1_CPU_SPEC): Make -march=foo define __foo__, and provide
        __tune_foo__ if no -mcpu.  Make -mcpu=bar define __tune_bar__.
        (EXTRA_SPECS): Remove deleted specs.

Thu Sep  9 16:03:06 1999  Richard Henderson  <rth@cygnus.com>

        * function.c (assign_stack_local_1): Allocate from
        function->x_frame_offset, not frame_offset.

Thu Sep  9 14:36:31 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc.h (lang_cleanup_tree): Remove.
        * gcc-simple.c (ggc_free_tree): Don't call lang_cleanup_tree.
        * ggc-callbacks.c (lang_cleanup_tree): Remove.

        * c-decl.c (finish_struct): Use ggc_alloc to allocate
        TYPE_LANG_SPECIFIC when garbage collecting.
        (lang_mark_tree): Mark TYPE_LANG_SPECIFIC.
        (lang_cleanup_tree): Remove.

Thu Sep  9 14:23:02 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * defaults.h (EH_FRAME_SECTION, EH_FRAME_SECTION_ASM_OP): Define here.
        * crtstuff.c: Not here.
        * dwarf2out.c: Or here.
        * libgcc2.c (__do_global_ctors, __do_global_dtors): Handle EH frame
        info.

Thu Sep  9 09:40:58 1999  Mark Mitchell  <mark@codesourcery.com>

        * function.h (free_after_compilation): Remove decl parameter.
        (free_varasm_status0: Likewise.
        (free_emit_status): Likewise.
        (free_stmt_status): Likewise.
        (free_after_compilation): Likewise.
        (init_lang_status): New variable.
        (free_lang_status): Likewise.
        * emit-rtl.c (free_emit_status): Make decl parameter implicit.
        * function.c (init_lang_status): New variable.
        (free_lang_status): Likewise.
        (push_function_context_to): Don't set function::decl here.
        (free_after_copmilation): Make decl parameter implicit.  Call
        free_lang_status if defined.
        (prepare_function_start): Call init_lang_status if defined.
        (init_function_start): Set function::decl here.
        * profile.c (output_func_start_profiler): Don't call pushdecl
        until we've actually started the function.
        * stmt.c (free_stmt_status): Make decl parameter implicit.
        * toplev.c (rest_of_compilation): Don't pass decl to
        free_after_compilation.
        * varasm.c (free_varasm_status): Likewise.

Thu Sep  9 17:23:19 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * except.c (call_get_eh_context): Add root when allocating static
        tree variable.

Thu Sep  9 15:24:59 BST 1999  Richard Earnshaw <rearnsha@arm.com>

        * arm.c: Include "ggc.h".
        (arm_add_gc_roots): New function.
        (arm_override_options): Call it.
        (aof_pic_entry): Add a GC root for aof_pic_label when it's allocated.

        * arm.md (define_asm_attributes): Add a pool_range attribute.

Thu Sep  9 12:32:57 BST 1999  Nathan Sidwell  <nathan@acm.org>

        * extend.texi (Volatiles): New node.

Thu Sep  9 03:37:31 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-simple.c (IS_MARKED, IGNORE_MARK): New.
        (GGC_ANY_MAGIC, GGC_ANY_MAGIC_MARK): New.
        (struct ggc_any): Replace `mark' with `magic_mark'.
        (ggc_alloc_string): Use memcpy, not bcopy.
        (ggc_alloc_any): Set magic_mark.  Update bytes_alloced_since_gc.
        (ggc_free_{rtx,rtvec,tree,string}): Mark inline.
        (ggc_free_any): New.
        (ggc_mark_string): Use IGNORE_MARK.  Calc back to struct gcc_string.
        (ggc_mark): Use IGNORE_MARK.  Abort if magic doesn't match.
        (ggc_collect): Re-enable collection avoidance.  Use GGC_ANY_MARK.
        Use IS_MARKED. Use ggc_free_any.

1999-09-09  Scott Bambrough <scottb@netwinder.org>

        * config/arm/linux-elf.h: define NO_IMPLICIT_EXTERN_C

Thu Sep  9 01:55:21 1999  Richard Henderson  <rth@cygnus.com>

        * toplev.c (main): Always init_ggc.

Wed Sep  8 23:53:22 1999  Richard Henderson  <rth@cygnus.com>

        * except.c (find_all_handler_type_matches): Free the list if
        we found no matches.

        * combine.c (SUBST): Break out to a real function do_SUBST.
        (SUBST_INT): Likewise.
        * gcse.c (free_pre_mem): Free `temp_bitmap'.
        (pre_insert): Free `inserted'.
        * loop.c (basic_induction_var): Always set `location'.

        * function.c (expand_function_end): Add initial_trampoline as a root.
        * rtl.h (init_varasm_once): Declare.
        * toplev.c (compile_file): Call it.
        * ggc-simple.c (ggc_mark_string_ptr): New.
        (ggc_add_string_root): New.
        (ggc_collect): Disable collection avoidance temporarily.
        * ggc.h (ggc_add_string_root): Declare.
        * except.c (create_rethrow_ref): Use ggc_alloc_string.
        * optabs.c (init_libfuncs): Likewise.
        * varasm.c (named_section): Use ggc_alloc_string.
        (make_function_rtl): Likewise.
        (make_decl_rtl): Likewise.
        (assemble_static_space): Likewise.
        (assemble_trampoline_template): Likewise.
        (output_constant_def): Likewise.
        (force_const_mem): Likewise.
        (mark_const_hash_entry): New.
        (mark_pool_sym_hash_table): New.
        (mark_varasm_state): Use it.
        (init_varasm_once): New.

        * expr.h (init_one_libfunc): Declare.
        * optabs.c (init_one_libfunc): New.
        (init_optabs): Use it.
        * config/gofast.h: Likewise.
        * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Likewise.
        * config/sparc/sparc.h (INIT_TARGET_OPTABS): Likewise.

Thu Sep  9 13:46:06 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * Makefile.in (cppexp.o): Depend on cpphash.h.
        * cppexp.c (cpp_lex): Handle `defined (xxx)' for poisoned xxx.
        Include cpphash.h.
        * cpphash.c (special_symbol): Handle plain `xxx' for poisoned xxx.
        * cpplib.c (do_define): Generalise to handle poisoned definitions,
        redefining poisoned identifiers, etc.
        (do_undef): Don't allow poisoned identifiers to be undefined.
        (do_pragma): Add #pragma poison.
        (do_xifdef): Handle `#ifdef xxx' for poisoned xxx.

        * cccp.c: Add T_POISON node type.
        (special_symbol): Handle `defined(xxx)' and plain `xxx' for
        poisoned xxx.
        (do_define): Generalise to handle poisoned definitions,
        redefining poisoned identifiers, etc.
        (do_undef): Don't allow poisoned identifiers to be undefined.
        (do_pragma): Add #pragma poison.
        (do_xifdef): Handle `#ifdef xxx' for poisoned xxx.

        * c-pragma.c (handle_pragma_token): Ignore #pragma poison.
        * c-pragma.h: Add ps_poison state.  We now always have generic
        pragmas.

Wed Sep  8 20:30:42 1999  Mark Mitchell  <mark@codesourcery.com>

        * ggc.h (ggc_alloc): New function.
        (ggc_mark): Likewise.
        * ggc-simple.c (ggc_any): New structure.
        (ggc_status): Add anys.
        (n_anys_collected): New variable.
        (ggc_alloc): Define.
        (ggc_mark): Likewise.
        (ggc_collect): Collect the anys.

Wed Sep  8 20:15:14 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-decl.c (mark_binding_level): Make static to match prototype.

Wed Sep  8 16:41:27 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (new_insn_dead_notes): Don't early out for preexisting regs.

Wed Sep  8 16:07:52 1999  Richard Henderson  <rth@cygnus.com>

        * gengenrtl.c (CONST_DOUBLE_FORMAT): Take the size REAL_ARITHMETIC
        will use into account.  Expand the max width to 5.
        * rtl.c: Likewise.

Wed Sep  8 16:01:14 1999  Richard Henderson  <rth@cygnus.com>

        * ggc-simple.c (ggc_free_rtx): Poison the correct amount
        for the rtx length.

Wed Sep  8 15:23:54 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (call value patterns): Remove the result predicates.

Wed Sep  8 13:35:38 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (stmp-fixinc): Remove extraneous exit 1 from
        last change.

Wed Sep  8 15:32:16 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (sbrk, malloc, calloc, realloc): Backup prototypes
        changed from extern char *, to extern PTR.  Also fix typo in
        NEED_DECLARATION_REALLOC test.

        * mips-tdump.c (malloc, calloc, realloc): Don't prototype.

Wed Sep  8 11:40:47 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gansidecl.h (__attribute__, ATTRIBUTE_UNUSED_LABEL,
        ATTRIBUTE_UNUSED, ATTRIBUTE_NORETURN, ATTRIBUTE_PRINTF,
        ATTRIBUTE_PRINTF_1, ATTRIBUTE_PRINTF_2, ATTRIBUTE_PRINTF_3,
        ATTRIBUTE_PRINTF_4, ATTRIBUTE_PRINTF_5, GENERIC_PTR): Delete.

        * c-decl.c (field_decl_cmp): Use PTR instead of GENERIC_PTR.

        * cccp.c (pcfinclude): Likewise.

        * global.c (allocno_compare): Likewise.

        * haifa-sched.c (rank_for_schedule): Likewise.

        * local-alloc.c (qty_sugg_compare_1, qty_compare_1): Likewise.

        * reload1.c (hard_reg_use_compare, reload_reg_class_lower): Likewise.

        * stupid.c (stupid_reg_compare): Likewise.

        * tree.c (_obstack_allocated_p): Likewise.

        * varray.h (varray_data_tag, VARRAY_GENERIC_PTR_INIT): Likewise.

1999-09-08  Bruce Korb  autogen@linuxbox.com

        * Makefile.in: Give the hapless gperf user a hint about
        why "gperf -F" fails.

Wed Sep  8 04:43:22 1999  Richard Henderson  <rth@cygnus.com>

        * lists.c: Include ggc.h.
        (zap_lists): New.
        (init_EXPR_INSN_LIST_cache): Install it.

        * ggc-simple.c (init_ggc): Absorb the old init.
        (ggc_push_context): Use xcalloc.
        (ggc_alloc_rtx, ggc_alloc_rtvec, ggc_alloc_tree): Likewise.
        (ggc_collect): Add [rvts] tags to the collection stats.

Wed Sep  8 11:14:25 1999  Andreas Schwab  <schwab@suse.de>

        * cccp.c (main): Fix handling of -include and -imacros options.

Wed Sep  8 02:23:08 1999  Jeffrey A Law  (law@cygnus.com)

        * cpplib.c (cpp_push_buffer): Fix order of arguments.

Wed Sep  8 04:44:09 1999  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * rtl.h (obstack_alloc_rtx): Removed, it's now static in
        genrtl.c.

Wed Sep  8 00:33:43 1999  Alasdair Baird  <alasdair@wildcat.demon.co.uk>

        * flow.c (insn_dead_p): Use XEXP rather than SUBREG_REG.
        * haifa-sched.c (sched_analyze_1): Use XEXP rather than SUBREG_REG
        and SET_DEST. Update comment.

Wed Sep  8 18:55:17 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c: Include ggc.h.
        (c4x_add_gc_roots): New function.
        (c4x_override_options): Call c4x_add_gc_roots.

Wed Sep  8 00:00:16 1999  Richard Henderson  <rth@cygnus.com>

        * defaults.h (TARGET_ESC): Move ...
        * system.h: ... here, where Linas had it in the first place.  Silly me.

Tue Sep  7 23:46:35 1999  Linas Vepstas  <linas@linas.org>

        * c-common.c: Use ISGRAPH, ISLOWER, toupper.
        * c-lex.c, cccp.c, cexp.c, cexp.y, cppexp.c, dwarf2out.c, genattr.c,
        genattrtab.c, genemit.c, genextract.c, genpeep.c, tree.c: Likewise.
        * system.h (IN_CTYPE_DOMAIN): Define to 1 if HOST_EBCDIC.
        * defaults.h (TARGET_ESC): Add default.

Tue Sep  7 23:36:59 1999  Linas Vepstas  <linas@linas.org>

        * configure.in: add i370-*-openedition, i370-*-mvs and
        i370-*-linux targets

Tue Sep  7 23:31:53 1999  Mark Mitchell  <mark@codesourcery.com>

        * dsp16xxx.c: Include ggc.h
        (override_options): Mark GC roots.
        * mn10200.c: Include ggc.h.
        (asm_file_start): Mark GC roots.
        * tahoe.c: Include ggc.h.
        (extensible_operand): Mark GC roots.

Tue Sep  7 23:23:15 1999  Linas Vepstas  <linas@linas.org>

        * README: Add section discussing status of ELF ABI.
        * i370.c: Fix misc spelling mistakes.
        (i370_label_scan): Updated notes, exception handling.
        (i370_function_prolog): Simplify ELF stack handling.
        * i370.h: (FIXED_REGISTERS): Free up r12 for ELF.
        (STACK_GROWS_DOWNWARD): ELF stack grows down.
        (ASM_DECLARE_FUNCTION_NAME): Fix crazy malloc size.
        * i370.md: (movdi): Add notes.
        (floatsidf2): Use stack not rtca for scratch float area.
        (iorsi3): Correct operand constraints.
        * x-oe: Restore TAROUTOPTS which are used by pax.

Tue Sep  7 22:39:18 1999  Mark Mitchell  <mark@codesourcery.com>

        * rs6000.c: Include ggc.h.
        (rs6000_add_gc_roots): New function.
        (override_options): Call it.

Tue Sep  7 22:09:03 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (alpha_compare): New.
        (alpha_compare_op0, alpha_compare_op1, alpha_compare_fp_p): Remove.
        * alpha.c: Likewise for the definitions.
        (alpha_emit_conditional_branch): Update for alpha_compare.
        (alpha_emit_conditional_move): Likewise.
        * alpha.md (cmpdf, cmpdi): Likewise.
        (setcc patterns): Likewise.  Zero alpha_compare after use.
        (sne): Optimize (x != 0) into (0U < x).

Tue Sep  7 21:55:02 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (alpha_eh_epilogue_sp_ofs): Remove.
        (struct machine_function): Declare; add eh_epilogue_sp_ofs.
        (INIT_EXPANDERS): Remove.
        * alpha.c: Include ggc.h.
        (alpha_eh_epilogue_sp_ofs, alpha_return_addr_rtx): Remove.
        (alpha_init_machine_status, alpha_mark_machine_status): New.
        (override_options): Install them.
        (struct machine_function): Moved to alpha.h.
        (alpha_save_machine_status, alpha_restore_machine_status): Remove.
        (alpha_init_expanders): Remove.
        (alpha_return_addr): Adjust to use current_function->machine.
        (alpha_ra_ever_killed): Likewise.
        (alpha_expand_epilogue): Likewise.
        * alpha.md (eh_epilogue): Likewise.

Wed Sep  8 14:34:42 1999  Ian Piumarta  <piumarta@prof.inria.fr>
                          Melissa O'Neill  <oneill@cs.sfu.ca>
                          Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (first_reg_to_save): Don't save fixed or
        call-used registers (call-saved registers must still be contiguous
        and end with r31, of course).

Tue Sep  7 21:41:38 1999  Richard Henderson  <rth@cygnus.com>

        * c-typeck.c (type_lists_compatible_p): Use simple_type_promotes_to.
        (self_promoting_type_p): Delete.
        (self_promoting_args_p): Move ...
        * c-common.c: ... here.
        (c_common_nodes_and_builtins): Initialize lang_type_promotes_to.
        (simple_type_promotes_to): New.
        * builtins.c (lang_type_promotes_to): New.
        (expand_builtin_va_arg): Use it to give diagnostic for illegal types.
        * c-tree.h (C_PROMOTING_INTEGER_TYPE_P): Move ...
        * c-common.h: ... here.
        (self_promoting_args_p, simple_type_promotes_to): Declare.
        * c-decl.c (duplicate_decls): Use simple_type_promotes_to.
        (grokdeclarator): Likewise.
        * tree.h (lang_type_promotes_to): Declare.

Tue Sep  7 17:15:21 1999  Mark Mitchell  <mark@codesourcery.com>

        Add some machine-dependent GC roots.
        * sparc.c: Include ggc.h.
        (sparc_add_gc_roots): New function.
        (mark_ultrasparc_pipeline_state): Likewise.
        (override_options): Call sparc_add_gc_roots.
        * pa.c: Include ggc.h.
        (pa_add_gc_roots): New function.
        (mark_deferred_plabels): Likewise.
        (override_options): Call pa_add_gc_roots.
        * mips.c: Include ggc.h.
        (mips_add_gc_roots): New function.
        (override_options): Use it.

Tue Sep  7 11:39:41 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpperror.c (cpp_file_line_for_message): Constify a char*.

        * cppexp.c (parse_number, parse_charconst, cpp_lex,
        cpp_parse_expr): Add static prototypes.
        (parse_charconst): Don't cast away const-ness.
        (token): Constify a char*.

        * cppfiles.c (file_name_list, include_hash, find_include_file,
        finclude, initialize_input_buffer): Constify a char*.
        (file_cleanup, find_position): Add static prototypes.

        * cpphash.c (macro_cleanup, macarg, timestamp, special_symbol,
        collect_expansion): Add static prototypes.
        (cpp_install, create_definition, monthnames): Constify a char*.

        * cpphash.h (cpp_install): Likewise.

        * cppinit.c (known_suffixes, default_include,
        dump_special_to_buffer, NAME, cpp_start_read, cpp_finish): Likewise.
        (base_name, dump_special_to_buffer, initialize_dependency_output):
        Add static prototypes.

        * cpplib.c (my_strerror): Constify a char*.
        (null_underflow, null_cleanup, skip_comment, copy_comment,
        copy_rest_of_line, handle_directive, pass_thru_directive,
        get_directive_token, read_line_number, cpp_print_file_and_line,
        v_cpp_error, v_cpp_warning, v_cpp_error_with_line,
        v_cpp_warning_with_line, detect_if_not_defined,
        consider_directive_while_skipping): Add static prototypes.
        (pass_thru_directive, check_macro_name, cpp_expand_to_buffer,
        cpp_pedwarn_with_file_and_line): Constify a char*.

        * cpplib.h (cpp_options, include_hash, progname, definition,
        cpp_pedwarn_with_file_and_line, cpp_expand_to_buffer,
        check_macro_name, cpp_pfatal_with_name, cpp_file_line_for_message,
        find_include_file, deps_output, include_hash): Constify a char*.

        * cppmain.c (progname): Constify.
        (main): Add prototype.  Use return, not exit.

        * fix-header.c (fatal, add_symbols, lookup_std_proto, write_lbrac,
        recognized_macro, check_macro_names, read_scan_file, write_rbrac,
        inf_skip_spaces, inf_read_upto, inf_scan_ident, inf_scan_ident,
        check_protection): Add static prototype.
        (xfree): Remove.
        (progname, recognized_macrom, recognized_extern): Constify a char*.
        (main): Add prototype.

        * gen-protos.c (progname): Constify a char*.

Tue Sep  7 00:47:52 1999  Mark Mitchell  <mark@codesourcery.com>

        * emit-rtl.c (free_emit_status): Take decl as a parameter.
        (init_emit_once): Add more GC roots.
        * except.c (mark_func_eh_entry): New function.
        (mark_eh_node): Mark false_label and rethrow_label.
        (init_eh): Add more GC roots.
        * function.c (free_after_compilation): Take decl as a paramter.
        Call free_stmt_status.
        (mark_function_state): Don't assume x_parm_reg_stack_loc is
        non-NULL.
        * function.h (free_after_compilation): Change prototype.
        (free_varasm_status): Likewise.
        (free_emit_status): Likewise.
        (free_stmt_status): New function.
        * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc):
        Remove, replacing with ...
        (ggc_status): New structure.
        (ggc_chain): New variable.
        (init_gcc): Define.
        (ggc_push_context): New function.
        (ggc_pop_context): Likewise.
        (ggc_alloc_rtx): Adjust for use of ggc_chain.
        (ggc_alloc_rtvec): Likewise.
        (ggc_alloc_tree): Likewise.
        (ggc_alloc_string): Likewise.
        (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO.
        (ggc_mark_tree): Give language-dependent code a chance to mark
        `x' nodes.
        (ggc_mark_tree_varray): Handle empty arrays.
        (ggc_collect): Adjust for use of ggc_chain.  Clear
        bytes_alloced_since_last_gc.
        * ggc.h (ggc_pop_context): New function.
        (ggc_push_context): Likewise.
        * print-tree.c (print_node): Don't print obstacks when GC'ing.
        * stmt.c (free_stmt_status): New function.
        (init_stmt_for_function): Clear last_expr_value.
        * toplev.c (rest_of_compilation): Always call free_after_compilation.
        Conditionalize call to ggc_collect.
        (main): Call init_ggc.
        * tree.c (push_obstacks): Do the push, even when GC'ing.
        (push_obstacks_nochange): Likewise.
        (pop_obstacks): Liekwise.
        * varasm.c (free_varasm_status): Take decl as a parameter.

Tue Sep  7 08:15:49 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (MULTILIB_ENDIAN_DEFAULT) : New macro.
        (MULTILIB_ENDIAN_DEFAULT) : Use the new macro.
        * config/mips/elf64.h (MULTILIB_DEFAULTS) : Use the new macro.
        * config/mips/r3900.h (MULTILIB_DEFAULTS) : Use the new macro.

Tue Sep  7 03:42:45 1999  Mark Klein (mklein@dis.com)

        * pa/x-pa-mpeix: New file for the MPE port.

        * pa/quadlib.asm: New file for long double support.

        * configure.in: Add hppa1.0-*-mpeix for MPE port.
        * configure: Rebuilt.

Tue Sep  7 10:08:40 1999  Andreas Schwab  <schwab@suse.de>

        * final.c (shorten_branches): Fix last change.

Tue Sep  7 00:30:32 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.h (ASM_OUTPUT_DOUBLE_INT): Delete.

Mon Sep  6 22:44:47 1999  Jeffrey A Law  (law@cygnus.com)

        * Merge from gcc2 snapshot Jan 9, 1999.  See FSFChangeLog for
        details.

Mon Sep  6 22:31:28 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-aux-info.c (concat): Don't define.

        * cccp.c (my_strerror): Likewise.  All callers changed to use
        xstrerror instead.
        (do_include): Call xstrdup, not xmalloc/strcpy.
        (grow_outbuf): Don't check if xrealloc returns NULL, it can't.
        (xmalloc, xrealloc, xcalloc, xstrdup): Don't define.

        * collect2.c (my_strsignal): Likewise.  All callers changed to use
        strsignal instead.
        (locatelib): Call xstrdup, not xmalloc/strcpy.

        * 1750a.h (ASM_OUTPUT_INTERNAL_LABEL): Call xmalloc, not malloc.

        * dsp16xx.c (override_options): Call xstrdup, not xmalloc/strcpy.

        * i370.h (ASM_DECLARE_FUNCTION_NAME): Call xmalloc, not malloc.

        * mips.c (build_mips16_call_stub): Call xstrdup, not xmalloc/strcpy.

        * cppinit.c (cpp_options_init): Call xcalloc, not xmalloc/bzero.

        * dwarfout.c (dwarfout_init): Call concat, not xmalloc/strcpy/...

        * except.c (new_eh_region_entry): Call xmalloc/xrealloc, not
        malloc/realloc.
        (find_all_handler_type_matches): Likewise.  Don't check return
        value.
        (get_new_handler, init_insn_eh_region, process_nestinfo): Call
        xmalloc, not malloc.
        (init_eh_nesting_info): Likewise.  Call xcalloc, not xmalloc/bzero.

        * gcc.c (xstrerror, xmalloc, xrealloc): Don't define.
        (init_spec): Call xcalloc, not xmalloc/bzero.
        (set_spec): Call xstrdup, not save_string.
        (record_temp_file): Call xstrdup, not xmalloc/strcpy.
        (find_a_file): Call xstrdup, not xmalloc/strcpy.
        (process_command): Call xstrdup, not save_string.
        (main): Call xcalloc, not xmalloc/bzero.

        * gcov.c (xmalloc): Don't define.
        (create_program_flow_graph): Call xcalloc, not xmalloc/bzero.
        (scan_for_source_files): Call xstrdup, not xmalloc/strcpy.
        (output_data): Call xcalloc, not xmalloc/bzero.

        * haifa-sched.c (schedule_insns): Call xcalloc, not xmalloc/bzero.

        * mips-tdump.c (xmalloc): Don't define.
        (print_symbol): Call xmalloc, not malloc.
        (read_tfile): Call xcalloc, not calloc.

        * mips-tfile.c (xfree, my_strsignal, xmalloc, xcalloc, xrealloc):
        Don't define.  All callers of xfree/my_strsignal changed to use
        free/strsignal instead.
        (allocate_cluster): Call xcalloc, not calloc.

        * objc/objc-act.c (lang_init): Call concat, not xmalloc/strcpy/...
        Fix memory leak, free allocated memory.

        * prefix.c (translate_name): Call xstrdup, not save_string.
        (update_path): Likewise.

        * profile.c (branch_prob): Call xstrdup, not xmalloc/strcpy.

        * protoize.c (xstrerror, xmalloc, xrealloc, xfree, savestring2):
        Don't define.  Callers of xfree/savestring2 changed to use
        free/concat instead.

        * reload1.c (reload): Call xcalloc, not xmalloc/bzero.
        (init_elim_table): Likewise.

        * resource.c (init_resource_info): Likewise.

        * stupid.c (stupid_life_analysis): Likewise.

        * toplev.c (xmalloc, xcalloc, xrealloc, xstrdup): Don't define.
        (open_dump_file): Call concat, not xmalloc/strcpy/...
        (clean_dump_file): Likewise.
        (compile_file): Call xstrdup, not xmalloc/strcpy.

Mon Sep  6 15:04:55 1999  Richard Henderson  <rth@cygnus.com>

        * v850.h (EXPAND_BUILTIN_VA_ARG): New.
        * v850.c (v850_va_arg): New.

Tue Sep  7 09:36:01 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * haifa-sched.c: Tidy comments.

Mon Sep  6 14:30:13 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * Makefile.in (C_AND_OBJC_OBJS): Remove ggc-callbacks.o.
        (c-parse.o, c-decl.o, c-lang.o, c-lex.o, c-common.o,
        $(out_object_file)): Depend on ggc.h.
        * c-common.c: Include "ggc.h".
        (combine_strings): If doing GC, use ggc_alloc_string.
        * c-decl.c: Include "ggc.h".
        (ggc_p): Define with value 0.
        (mark_binding_level): New function.
        (init_decl_processing): Add GC roots.
        (mark_c_function_context): New function.
        (lang_mark_false_label_stack): New function.
        (lang_mark_tree): New function.
        (lang_cleanup_tree): New function.
        * c-lang.c: Include "ggc.h".
        (lang_init): Call c_parse_init.
        * c-lex.c: Include "ggc.h".
        (check_linenum): If doing GC, don't copy filenames to permanent
        obstack.
        * c-parse.in: Include "ggc.h".
        (c_parse_init): New function.
        * c-tree.h (c_parse_init, mark_c_function_context): Declare.
        * objc/Make-lang.in (objc-parse.o): Depend on ggc.h.

        * except.c (mark_eh_state): Mark more state.
        * function.c (mark_function_state): Likewise.
        * ggc-simple.c (ggc_alloc_rtvec): Bring in sync with non-gc version.
        (ggc_alloc_string) [GGC_DUMP]: Fix typo.
        * toplev.c (mark_file_stack): New function.
        (compile_file): If doing GC, use ggc_alloc_string on input filename.
        (main): Add root for input_file_stack.

        * i386.c: Include "ggc.h".
        (ix86_mark_machine_status): New function.
        (override_options): Set mark_machine_status.

Mon Sep  6 15:26:23 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * tree.c (copy_node): Copy node contents also if doing GC.

Mon Sep  6 08:42:06 1999  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * collect2.c (scan_libraries): Fix double-thinko :-).

Mon Sep  6 02:42:36 1999  Jeffrey A Law  (law@cygnus.com)

        * collect2.c (scan_libraries): Fix thinko.

        * cse.c (delete_trivially_dead_insns): Do not skip the last
        insn if it is a real insn.

Sun Sep  5 18:57:42 1999  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (ggc-simple.o): Depend on hash.h.
        * ggc.h (ggc_add_tree_hash_table_root): Declare.
        (ggc_mark_tree_varray): Likewise.
        (ggc_mark_tree_hash_table): Likewise.
        * ggc-simple.c: Include hash.h.
        (ggc_mark_tree_hash_table_ptr): New function.
        (ggc_mark_tree_hash_table_entry): Likewise.
        (ggc_mark_tree_hash_table): Likewise.
        (ggc_add_tree_hash_table_root): Likewise.
        * varray.h (const_equiv_data): Use struct rtx_def *, rather than
        rtx, when defining fields.

Sun Sep  5 18:57:42 1999  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * profile.c (output_func_start_profiler): Remove apparently
        nonsensical call to start_sequence.

Sun Sep  5 17:34:33 1999  Richard Henderson  <rth@cygnus.com>

        * clipper/clipper.c (clipper_va_start): Fix typos.

        * pyr/pyr.c (pyr_build_va_list, pyr_va_start, pyr_va_arg): New stubs.
        * spur/spur.c (spur_build_va_list, spur_va_start): New stubs.
        (spur_va_arg): New stub.

        * configure.in: Comment out pyramid.

Sun Sep  5 19:11:01 1999  Michael Meissner  <meissner@cygnus.com>

        * i386.h (MASK_{DEBUG_{ADDR,ARG},INTEL_SYNTAX}): Move so these
        don't conflict with the bits that win32, cygwin, and dgux
        defines.

Sun Sep  5 09:31:56 1999  Richard Henderson  <rth@cygnus.com>
                          Bernd Schmidt <bernds@cygnus.co.uk>

        * integrate.c (function_cannot_inline_p): Do not inline
        functions with forced labels.

Sun Sep  5 00:35:17 1999  Richard Henderson  <rth@cygnus.com>
                          Bernd Schmidt <bernds@cygnus.co.uk>
                          Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (ggc-simple.o): Depend on varray.h.
        (rtl.o): Depend on ggc.h.
        (genattrtab.o): Depend on ggc.h.
        (print-tree.o): Likewise.
        (fold-const.o): Likewise.
        * emit-rtl.c (sequence_element_free_list): Remove, and all references.
        (make_insn_raw): Don't cache insns when GC'ing.
        (emit_insn_before): Likewise.
        (emit_insn_after): Likewise.
        (emit_insn): Likewise.
        (start_sequence): Use xmalloc to allocate the sequence_stack.
        (end_sequence): Add free to free it.
        (gen_sequence): Don't cache insns when GC'ing.
        (clear_emit_caches): Don't use sequence_element_free_list.
        (init_emit): Use xcalloc, not xmalloc+bzero.
        * fold-const.c (size_int_wide): Kill the cache, when GC'ing.
        * function.c (pop_function_context_from): Use free to free the
        fixup_var_refs_queue.
        (put_reg_into_stack): Allocate it with xmalloc.
        * genattrtab.c: Include ggc.h.
        (operate_exp): Don't use obstack_free when GC'ing.
        (simplify_cond): Likewise.
        (simplify_text_exp): Likewise.
        (optimize_attrs): Likewise.
        * gengenrtl.c (gendef): Use ggc_alloc_rtx to allocate RTL, when
        GC'ing.
        (gencode): Generate a #include for ggc.h.
        * ggc-callbacks.c (ggc_p): Define it to zero.
        * ggc-none.c (ggc_p): Likewise.
        * ggc-simple.c: Include varray.h.
        (ggc_mark_tree_varray): New function.
        (ggc_add_tree_varray_root): Likewise.
        (ggc_mark_tree_varray_ptr): Likewise.
        * ggc.h (ggc_p): Declare.
        (varray_head_tag): Likewise.
        (ggc_add_tree_varray_root): Declare.
        * print-tree.c (print_node): Don't check for TREE_PERMANENT
        inconsistencies when GC'ing.
        * rtl.c: Include ggc.h.
        (rtvec_alloc): Use ggc_alloc_rtvec when GC'ing.
        (rtx_alloc): Use ggc_alloc_rtx when GC'ing.
        (rtx_free): Don't call obstack_free when GC'ing.
        * toplev.c (rest_of_compilation): Call ggc_collect after every
        pass, if GC'ing.
        * tree.c (push_obstacks): Do nothing, if GC'ing.
        (pop_obstacks_nochange): Likewise.
        (pop_obstacks): Likewise.
        (make_node): Use ggc_alloc_tree when GC'ing.
        (copy_node): Likewise.
        (get_identifier): Use ggc_alloc_string when GC'ing.
        (build_string): Likewise.
        (make_tree_vec): Use ggc_alloc_tree when GC'ing.
        (tree_cons): Likewise.
        (build1): Likewise.
        (type_hash_canon): Don't call obstack_free when GC'ing.

Sat Sep  4 21:52:32 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (schedule_block): Use next_nonnote_insn instead
        of NEXT_INSN when examining speculative insns for SCHED_GROUP_P.

Sat Sep  4 20:40:19 1999  Richard Henderson  <rth@cygnus.com>
                          Bernd Schmidt <bernds@cygnus.co.uk>
                          Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (stor-layout.o): Depend on ggc.h.
        (expr.o): Depend on ggc.h.
        (profile.o): Depend on ggc.h.
        (stor-layout.o): Depend on ggc.h.
        * emit-rtl.c (init_emit_once): Add gc roots.
        * expr.c: Include ggc.h.
        (emit_block_move): Add gc roots.
        (clear_storage): Likewise.
        * expr.h (init_stor_layout_once): New function.
        * profile.c: Include ggc.h.
        (init_arc_profiler): profiler_label is a root.
        * scan.c (make_sstring_space): Trust xrealloc to function
        correctly with first parameter NULL.
        * stor-layout.c: Include ggc.h.
        (set_sizetype): Add gc root.
        (init_stor_layout_once): New function.
        * toplev.c (compile_file): Call it.

Sat Sep  4 19:26:25 1999  Richard Henderson  <rth@cygnus.com>
                          Bernd Schmidt <bernds@cygnus.co.uk>
                          Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (tree.o): Depend on ggc.h.
        (varasm.o): Likewise.
        (function.o): Likewise.
        (stmt.o): Likewise.
        (except.o): Likewise.
        (optabs.o): Likewise.
        (emit-rtl.o): Likewise.
        * emit-rtl.c: Include ggc.h.
        (sequence_element_free_list): Remove, and all references.
        (mark_sequence): New functions.
        (mark_emit_state): New function.
        * except.c: Include ggc.h.
        (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions.
        (mark_tree_label_node): New functions.
        (mark_eh_state): New function.
        * function.c: Include ggc.h.
        (mark_temp_slot, mark_function_chain): New functions.
        (mark_function_state): New function.
        (init_function_once): New function.
        * function.h (init_function_once): New function.
        * ggc-callbacks.c (lang_mark_false_label_stack): New function.
        * ggc.h (label_node): Declare.
        (eh_status, emit_status, stmt_status, varasm_status): Likewise.
        (lang_mark_false_label_stack): New function.
        (mark_temp_slot): Remove declaration.
        (mark_function_chain): Likewise.
        (mark_eh_state): Adjust prototype.
        (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab):
        Likewise.
        * optabs.c: Include ggc.h.
        (mark_optab): New function.
        (init_optabs): Add gc roots.
        * stmt.c: Include ggc.h.
        (mark_cond_nesting, mark_loop_nesting): New functions.
        (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise.
        (mark_stmt_state): New function.
        * toplev.c (compile_file): Call init_function_once.
        * tree.c: Include ggc.h.
        (type_hash): Move declaration earlier in file.
        (TYPE_HASH_SIZE, type_hash_table): Likewise.
        (init_obstacks): Add gc roots.
        (mark_type_hash): New function.
        * varasm.c: Include ggc.h.
        (mark_pool_constant): New function.
        (mark_varasm_state): New function.

Sat Sep  4 22:28:56 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * ggc-simple.c (ggc_root, ggc_collect): Wrap prototype with PROTO.

Sat Sep  4 18:01:45 1999  Bernd Schmidt <bernds@cygnus.co.uk>

        * c-decl.c (struct language_function): Renamed from struct c_function.
        Delete elt NEXT.
        (c_function_chain): Delete.
        (push_c_function_context): New arg F.  Don't warn about nested
        functions here.  Fill LANGUAGE elt of F.  Delete code to update
        c_function_chain.  Don't call push_function_context.
        (pop_c_function_context): New arg F.  Restore from there instead of
        from c_function_chain.  Don't call pop_function_context.  Clear out
        LANGUAGE field of F when done.
        * c-lang.c: Include "function.h"
        (lang_init): Initialize save_lang_status and restore_lang_status.
        * c-parse.in (nested_function, nested_function_notype): Warn about
        nested functions.  Call push_function_context/pop_function_context
        instead of the _c_ variants.
        * c-tree.h (push_c_function_context, pop_c_function_context): Update
        prototype.
        * Makefile.in (c-lang.o): Update dependencies.

        * emit-rtl.c (init_emit): Use xmalloc to allocate regno_reg_rtx,
        regno_pointer_flag, regno_pointer_align.
        (gen_reg_rtx): Use xrealloc to enlarge them.
        (free_emit_status): New function.
        * function.c (mark_machine_status, mark_lang_status): New variables.
        (assign_stack_local_1): Renamed from assign_outer_stack_local.  Merge
        in some bits from assign_stack_local.  All callers changed to use new
        name.
        (assign_stack_local): Just call assign_stack_local_1.
        (free_after_compilation): New function.
        (put_reg_into_stack): Simplify to always call assign_stack_local_1.
        (trampoline_address): Likewise.
        (assign_parms): Use xcalloc/xrealloc to allocate parm_reg_stack_loc.
        (prepare_function_start): Explicitly clear some more variables.
        * function.h (struct function): New elt can_garbage_collect.
        (mark_machine_status, mark_lang_status): Declare variables.
        (free_after_compilation, free_emit_status, free_varasm_status,
        init_varasm_status): Declare functions.
        * toplev.c (rest_of_compilation): Call free_after_compilation when
        done with the current function.
        * varasm.c (free_varasm_status): New function.

Sat Sep  4 17:15:13 1999  Richard Henderson  <rth@cygnus.com>

        * sparc.h (EXPAND_BUILTIN_VA_START): Define.
        (EXPAND_BUILTIN_VA_ARG): Define.
        * sparc.c (sparc_va_start): New.
        (sparc_va_arg): New.

Sun Sep  5 11:11:59 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (DBR_OUTPUT_SEQEND): Use XVECEXP not XEXPs.

Sun Sep  5 10:13:19 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (CALLER_SAVE_PROFITABLE): Disable.

Sat Sep  4 13:44:01 1999  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (C_AND_C_OBJS): Add gcc-callbacks.o.
        (OBJS): Add $(GGC).
        (ggc-callbacks.o): New target.
        * ggc-callbacks.c: New file.

Sat Sep  4 22:53:13 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * expr.h: Collapse individual optab and libfunc vars to arrays.
        (optab_index, libfunc_index): New enumerations.
        (optab_table, libfunc_table): New arrays.
        Add accessor macros for both.

        * optabs.c (optab_table, libfunc_table): New.
        Delete declarations for individual optab and libfunc vars.

Sat Sep  4 12:57:17 1999  Richard Henderson  <rth@cygnus.com>

        * i386/sco5.h (RETURN_POPS_ARGS): Name change ix86_return_pops_args.

Sat Sep  4 11:19:52 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (GGC, GGC_LIB): New.
        (HOST_RTL): Include ggc-none.o.
        (ggc-simple.o): New target.
        (ggc-none.o): Likewise.
        * tree.h (tree_common): Add gc_mark.
        * rtl.h (struct rtx_def): Steal a bit from code to make gc_mark.
        (struct rtvec_def): Add gc_mark.
        * emit-rtl.c (global_rtl): Update static initializers to contain
        enough initializers.
        * ggc.h, ggc-none.c, ggc-simple.c: New files.
        * toplev.c (gc_time): New variable.
        (all_time): New variable.
        (compile_file): Print gc time.
        (print_time): Calculate percentage of the whole.

Sat Sep  4 13:11:01 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        Change obstack memory management and varasm constant pool handling so
        that nested functions are treated like any other functions.
        * function.c (init_machine_status): New variable.
        (push_function_context_to): Set contains_functions for the outer
        function.  Don't call save_varasm_status.
        (pop_function_context_from): Don't call restore_varasm_status.  Don't
        set current_function_contains_functions.
        (prepare_function_start): Call init_varasm_status rather than
        init_const_rtx_hash_table.  Call (*init_machine_status) if the pointer
        is non-null.
        * function.h (struct function) Add field varasm.  Delete fields
        inline_obstacks, inl_emit, const_rtx_hash_table, first_pool,
        last_pool, const_rtx_sym_hash_table, pool_offset, const_double_chain.
        (init_machine_status): Declare.
        (save_varasm_status, restore_varasm_status): Delete declarations.
        (save_tree_status, restore_tree_status): Delete last argument.
        * integrate.c (initialize_for_inline): Lose arg COPY.  Delete copying
        code.  All callers changed.
        (copy_decl_list, copy_decl_tree, copy_decl_rtls, copy_for_inline,
        save_constants_in_decl_trees, restore_constants, save_constants,
        save_for_inline_eh_labelmap, save_for_inline_copying): Delete
        functions.
        (inlining): New variable.
        (reg_map, label_map, insn_map, orig_asm_operands_vector,
        copy_asm_operands_vector, copy_asm_constraints_vector): Delete
        variables.
        (save_for_inline_nocopy): Don't save constants.
        Don't set inl_emit field in current_function.
        (expand_inline_function): Use emit field, not inl_emit, of the inlined
        function.  Set new variable inlining before
        calling copy_rtx_and_substitute.
        (copy_rtx_and_substitute): In MEM and SYMBOL_REF cases, handle
        constant pool references if inlining is nonzero.
        Delete ADDRESS and (most of the) CONST cases.
        (output_inline_function): Save and restore current_function/
        current_function_decl.  Delete restore_constants code.  Don't call
        init_const_rtx_hash_table.
        * output.h (init_const_rtx_hash_table): Don't declare.
        * rtl.h (struct function): Declare.
        (get_pool_constant_for_function, get_pool_mode_for_function): Declare.
        * toplev.c (rest_of_compilation): Don't treat nested functions or
        functions containing them specially.  Delete all code to deal with
        save_for_inline_copying.
        * tree.c (toplev_inline_obstacks, extra_inline_obstacks,
        inline_obstacks): Delete variables.
        (save_tree_status): Lose arg CONTEXT.  All callers changed.
        Simply allocate a new function_maybepermanent_obstack for the new
        function, delete all the special cases.
        Don't save inline_obstacks.
        (restore_tree_status): Lose arg CONTEXT.  All callers changed.
        Delete special handling for function_maybepermanent_obstack; simply
        free it if empty.
        Don't restore inline_obstacks.
        (permanent_allocation):  Delete code that frees inline_obstacks.
        (print_inline_obstack_statistics): Delete function.
        (dump_tree_statistics): Don't call it.
        * varasm.c (struct varasm_status): New.
        (const_rtx_hash_table, const_rtx_sym_hash_table, first_pool,
        last_pool, pool_offset, const_double_chain): Delete global
        variables, replace with accessor macros.
        (immed_double_const): Don't walk const_double_chain outside a
        function, but don't treat nested functions specially anymore.
        (immed_real_const_1): Likewise.
        (clear_const_double_mem): Don't treat nested functions specially.
        (init_const_rtx_hash_table): Deleted, code moved to init_varasm_status.
        (save_varasm_status, restore_varasm_status): Delete functions.
        (init_varasm_status): New function.
        (force_const_mem): Don't treat nested functions specially.
        (find_pool_constant): Accept new arg F, search for constants in
        that function's pool rather than the current one.  All callers
        changed.
        (get_pool_constant_for_function, get_pool_mode_for_function): New
        functions.

        * i386.c (init_386_machine_status): New function, mostly from
        clear_386_stack_locals.
        (struct machine_functions): Rename element names to avoid name
        clashes.
        (pic_label_rtx, pic_label_name, i386_stack_locals): New accessor
        macros, replacing global variables.
        (clear_386_stack_locals, save_386_machine_status,
        restore_386_machine_status): Delete functions.
        (override_options): Initialize init_machine_status.
        * i386.h (INIT_EXPANDERS): Delete macro.
        (save_386_machine_status, restore_386_machine_status,
        clear_386_stack_locals): Delete declarations.

Sat Sep  4 16:56:28 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (rptb_init): Renamed from *rptb_init.
        (doloop_begin):  Simplify pattern and use emit_jump_insn.
        (doloop_end): Simplify pattern, switch operand order,
        and use emit_jump_insn.

Fri Sep  3 19:02:38 1999  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

        * function.h (struct function): Add new element LANGUAGE.
        (save_lang_status): Declare new variable.
        (restore_lang_status): Likewise.
        * function.c (save_lang_status): Define.
        (restore_lang_status): Likewise.
        (push_function_context_to): Call language-specific save function.
        (pop_function_context_from): Call language-specific restore function.

Fri Sep  3 01:16:18 1999  Alasdair Baird  <alasdair@wildcat.demon.co.uk>

        * i386.md (movsf_1): Check REG_P before use of REGNO.
        (movdf_1): Likewise.
        (movxf_1): Likewise.
        (extendsfdf2): Likewise.
        (extendsfxf2): Likewise.
        (extenddfxf2): Likewise.

Sat Sep  4 11:37:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_emit_move_sequence): Do not force large
        constants into memory.
        (c4x_shiftable_constant): New function.
        * config/c4x/c4x.c (LEGITIMATE_CONSTANT_P): Allow any CONST_INT.
        (c4x_shiftable_constant): Declare.
        * config/c4x/c4x.md (loadqi_big_constant, loadhi_big_constant,
        ashlqi3_noclobber): Add new patterns and associated splitters.

Fri Sep  3 16:22:17 1999  Richard Henderson  <rth@cygnus.com>

        * dbxout.c (dbxout_init): Use xcalloc instead of xmalloc+bzero.
        * dwarf2out.c (dwarf2out_frame_init): Likewise.
        * final.c (shorten_branches): Likewise.
        * global.c (global_alloc): Likewise.
        * haifa-sched.c (build_control_flow): Likewise.
        * stmt.c (check_for_full_enumeration_handling): Likewise.
        (estimate_case_costs): Likewise.

Fri Sep  3 15:49:56 1999  Mark Mitchell  <mark@codesourcery.com>

        * rtl.h (RTL_CHECKC2): Fix typo in last change.

Fri Sep  3 15:13:34 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (propagate_block): Use XEXP not SET_DEST for a USE.
        (recompute_reg_usage): Likewise.
        * rtlanal.c (find_regno_fusage): Likewise.

        * rtl.c (rtl_check_failed_code1): New function.
        (rtl_check_failed_code2): New.
        * rtl.h (RTL_CHECK1, RTL_CHECK2, RTVEC_ELT): Parenthesize args.
        (RTL_CHECKC1, RTL_CHECKC2): New.
        (XC*): New accessor macros.
        (NOTE_*, LABEL_NAME, LABEL_NUSES, ADDRESSOF_REGNO): Use them.
        (ADDRESSOF_DECL, JUMP_LABEL, LABEL_REFS, LABEL_NEXTREF): Likewise.
        (CONTAINING_INSN, REGNO, INTVAL, SUBREG_REG, SUBREG_WORD): Likewise.
        (ASM_OPERANDS_*, MEM_ALIAS_SET, SET_SRC, SET_DEST): Likewise.
        (TRAP_*, RANGE_INFO_*): Likewise.

Fri Sep  3 15:10:20 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (tlink.o): Don't depend on toplev.h.

        * collect2.c (c_file, o_file, export_file, import_file, ldout,
        output_file, nm_file_name, ldd_file_name, strip_file_name,
        c_file_name, prefix_list, libexts, is_ctor_dtor, find_a_file,
        add_prefix, prefix_from_env, prefix_from_string, do_wait,
        fork_execute, maybe_unlink, add_to_list,
        extract_init_priority, write_list, dump_list,
        dump_prefix_list, write_list_with_asm, write_c_file,
        write_c_file_stat, write_c_file_glob, scan_prog_file,
        scan_libraries, is_in_list, resolve_lib_name, use_import_list,
        ignore_library, extract_string, notice, dump_file, target_machine,
        collect_wait, collect_execute, libname, locatelib, aix_std_libs,
        read_file, print_load_command): Constify a char*.
        (fdopen, error, fatal, fatal_perror): Don't prototype.
        (my_strerror): Remove.  All callers use xstrerror instead.
        (xcalloc, xmalloc, xrealloc, xstrdup, putenv): Remove definitions.
        (main): Add prototype.  Constify lots of char* ptrs.  Change calls
        to xcalloc/strcpy/strcat/...  to one call to concat.
        (main, scan_prog_file, scan_libraries): Use an intermediate
        `const char **' to build an argv array.
        (mapfile, libselect, libcompare, locatelib): Add prototypes.

        * collect2.h (collect_execute, collect_wait, dump_file,
        file_exists): Constify a char*.
        (ldout, c_file_name, temporary_obstack, permanent_obstack,
        temporary_firstobj, vflag, debug): Add extern declarations.
        (fancy_abort, error, notice, fatal, fatal_perror): Add prototypes.

        * tlink.c: Don't include toplev.h.
        (vflag, debug, ldout, c_file_name, temporary_obstack,
        permanent_obstack, temporary_firstobj): Don't declare.
        (tlink_execute, frob_extension, symbol_hash_lookup,
        file_hash_lookup, demangled_hash_lookup, tlink_init, freadsym,
        recompile_files, read_repo_files, demangle_new_symbols,
        scan_linker_output): Constify a char*.
        (symbol_hash_newfunc, file_hash_newfunc, demangled_hash_newfunc,
        do_tlink): Mark parameters with ATTRIBUTE_UNUSED.

Fri Sep  3 18:09:24 1999  Andrew Haley  <aph@cygnus.com>

        * config/m68k/m68kelf.h: Set USE_GAS; this makes gcc generate jbsr
        (relative) rather than jsr (absolute) subroutine call insns.
        * config/m68k/m68k-coff.h: Ditto.

Fri Sep  3 17:24:31 1999  Richard Earnshaw <rearnsha@arm.com>

        * arm.c (note_invalid_constants): No need to ignore ASMs, we can
        now rework these too.
        (arm_reorg): If an insn can't reach the end of the current pool,
        ensure that we emit that pool before the insn.

Fri Sep  3 09:14:32 1999  Marc Espie <espie@tetto.liafa.jussieu.fr>

        * tlink.c (scan_linker_output): Skip the initial underscore in
        a mangled name if appropriate.

Fri Sep  3 01:28:33 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * objc/objc-act.c (objc_tree_code_type, objc_tree_code_length,
        objc_tree_code_name, synth_id_with_class_suffix, warn_with_method,
        error_with_ivar, gen_declarator, create_builtin_decl,
        my_build_string, generate_descriptor_table, generate_ivars_list,
        generate_dispatch_table, check_protocols, TAG_GETCLASS,
        TAG_GETMETACLASS, TAG_MSGSEND, TAG_MSGSENDSUPER, TAG_EXECCLASS,
        dump_base_name, lang_decode_option, build_encode_expr,
        start_class, finish_class, encode_pointer, really_start_method,
        gen_declaration, dump_interface, handle_class_ref, handle_impent):
        Constify.
        (objc_demangle, objc_printable_name, generate_struct_by_value_array):
        Add static prototypes.
        (build_objc_string_decl, build_selector_reference_decl,
        encode_bitfield, build_class_reference_decl): Remove unused
        parameter, all callers changed.
        (maybe_objc_method_name): Mark with ATTRIBUTE_UNUSED.
        (objc_printable_name): Likewise.  Change second parameter to type int.
        (init_objc): Use memcpy, not bcopy, to avoid casts.

Thu Sep  2 21:49:52 1999  Richard Henderson  <rth@cygnus.com>

        * reload1.c (eliminate_regs_in_insn): Avoid eliminating the
        reg notes on a deleted insn.
        * gcse.c (hash_expr_1): Use XWINT on a CONST_DOUBLE.

Thu Sep  2 20:18:12 1999  Jeffrey A Law  (law@cygnus.com)

        * i386.c (ix86_attr_length_default): Handle TYPE_FXCH.

Thu Sep  2 22:00:08 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * stmt.c (expand_asm_operands): Fix index into inout_mode when
        reading it.

Thu Sep  2 13:00:48 1999  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_asm_operands): Invoke MD_ASM_CLOBBERS if present.
        * tm.texi (MD_ASM_CLOBBERS): Document it.

Thu Sep  2 10:22:40 1999  Richard Henderson  <rth@cygnus.com>

        * dwarf2out.c (dwarf2out_line): Constify `lastfile'.
        * except.c (expand_rethrow): Remove unused variable.
        * expr.c (do_jump_by_parts_greater_rtx): Likewise.
        * flow.c (replace_insns): Likewise.
        (create_edge_list, verify_edge_list): Likewise.
        * gcse.c (cprop_cc0_jump): Protect declaration with HAVE_cc0.

        * genemit.c (gen_expand): Only emit `operands[N]' decl if there
        is special code to run.
        (main): Don't define operands to emit_operand.
        * genrecog.c (main): Don't emit an empty peephole2_insn function.

        * rtl.h (NOTE_BASIC_BLOCK): Use X0BBDEF.

        * alpha/alpha.h (normal_memory_operand): Declare.
        (reg_no_subreg_operand): Declare.
        * alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use HOST_WIDE_INT_PRINT_DEC.

Thu Sep  2 10:19:20 1999  Richard Henderson  <rth@cygnus.com>

        * c-parse.in (compstmt_primary_start): New, broken out of first
        part of compstmt handling in primary.
        (primary): Use it.  Add an error clause.
        (compstmt_nostart): Renamed from compstmt; remove all
        initial invocations of compstmt_start.
        (compstmt): New.

Thu Sep  2 01:35:50 1999  Marc Espie <espie@cvs.openbsd.org>

        * protoize.c (gen_aux_info_file):  Let pexecute call choose_temp_base if
        needed.

Thu Sep  2 00:43:59 1999  Finn Hakansson  <finn@axis.com>

        * combine.c (simplify_shift_const): Remove extra semicolon.
        * dwarf2out.c (remove_AT): Likewise.
        * expmed.c (expand_mult): Likewise.
        * gcov.c (create_program_flow_graph): Likewise.
        * reorg.c (mostly_true_jump): Likewise.

Thu Sep  2 00:06:43 1999  Jeffrey A Law  (law@cygnus.com)

        * fold-const.c (fold_range_test): Do not try to fold the range
        test if the rhs or lhs has side effects.

        * combine.c (simplify_rtx): Recognize another case of a synthesized
        sign extension.

        * varasm.c (mark_constant_pool): When marking indirect references,
        only look at SYMBOL_REFs.

        * except.c (expand_fixup_region_end): Do not peek at
        INSN_UID (node->entry->outer_context) for flag_new_exceptions.

Thu Sep  2 13:52:53 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * flags.h: New variables align_loops, align_loops_log,
        align_jumps, align_jumps_log, align_labels, align_labels_log,
        align_functions, align_functions_log.
        * toplev.c: Define them.
        (f_options): Handle -falign-* when they have no argument.
        (main): Add logic to set variables for -falign-functions,
        -falign-jumps, -falign-labels, -falign-loops.
        Make it -fsched-verbose=<n> and -finline-limit=<n>.
        (display_help): Change help to match options.
        * final.c (LABEL_ALIGN): Default to align_labels_log.
        (LABEL_ALIGN_MAX_SKIP): Default to align_labels-1.
        (LOOP_ALIGN): Default to align_loops_log.
        (LOOP_ALIGN_MAX_SKIP): Default to align_loops-1.
        (LABEL_ALIGN_AFTER_BARRIER): Default to align_jumps_log.
        (LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP): Default to align_jumps-1.
        * varasm.c (assemble_start_function): Handle align_functions.

        * config/sparc/sparc.h: Don't declare sparc_align_*.
        Don't provide LABEL_ALIGN_AFTER_BARRIER or LOOP_ALIGN.
        (DEFAULT_SPARC_ALIGN_FUNCS): Delete; take functionality into
        sparc.c.
        (FUNCTION_BOUNDARY): Fix incorrect use---it's not just a request,
        it's a promise.
        * config/sparc/sparc.c: Delete sparc_align_loops,
        sparc_align_jumps, sparc_align_funcs and the corresponding string
        variables.
        (sparc_override_options): Default align_functions on ultrasparc.
        Delete -malign-* handling.

        * config/mips/mips.c (override_options):  On 64-bit targets,
        try to align code to 64-bit boundaries.
        (print_operand): New substitution, %~,
        which aligns labels to align_labels_log.
        * config/mips/mips.md (div_trap_normal): Use %~.
        (div_trap_mips16): Likewise.
        (abssi): Likewise.
        (absdi2): Likewise.
        (ffssi2): Likewise.
        (ffsdi2): Likewise.
        (ashldi3_internal): Likewise.
        (ashrdi3_internal): Likewise.
        (lshrdi3_internal): Likewise.
        (casesi_internal): Likewise.

Wed Sep  1 21:13:48 1999  Richard Henderson  <rth@cygnus.com>

        Merge new ia32 backend from the branch!

        * i386.h, i386.c, i386.md, reg-stack.c, i386/unix.h: Many changes.
        See ChangeLog.P2 on new_ia32_branch for details.

        * rtl.h (stack_regs_mentioned_p): Delete prototype.
        * i386/cygwin.h (SUBTARGET_PROLOGUE): No more do_rtl.
        * i386/win32.h (SUBTARGET_PROLOGUE): Likewise.
        * i386/gas.h (ASM_FILE_START): Define.
        * i386/winnt.c (i386_pe_valid_decl_attribute_p): Update
        for name change of ix86_valid_decl_attribute_p.
        (i386_pe_valid_type_attribute_p): Similarly.

Wed Sep  1 18:21:23 1999  Richard Henderson  <rth@cygnus.com>

        * emit-rtl.c (init_emit_once): Don't use GET_MODE_WIDER_MODE
        to step through CC modes.

Wed Sep  1 20:18:06 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (fixup_match_1): Don't move INSN in front of P if
        it would end up in the shadow of a live flags regsiter.

Wed Sep  1 11:32:00 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c: Fix many indentation problems.
        * reload.c: Likewise.

Tue Aug 31 22:08:03 1999  Marc Espie <espie@cvs.openbsd.org>

        * alias.c (non_local_reference_p): Constify fmt.

Tue Aug 31 23:19:35 1999  Michael Meissner  <meissner@cygnus.com>

        * config/i386/xm-cygwin.h (HAVE_DOS_BASED_FILE_SYSTEM): Define.

Tue Aug 31 16:44:52 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (delete_trivially_dead_insns): Do not delete stores to
        the internal_arg_pointer.

Tue Aug 31 13:35:42 1999  Richard Henderson  <rth@cygnus.com>

        Merge peephole2 from new_ia32_branch:
        * Makefile.in (STAGESTUFF): Add *.peephole2.
        (mostlyclean): Likewise.
        (recog.o): Depend on resource.h.

        * final.c (peephole): Conditionalize decl on HAVE_peephole.
        (final_scan_insn): Likewise for the invocation of peephole.
        * genconfig.c (main): Look for peephole and peephole2 patterns.
        Emit HAVE_peephole* accordingly.
        * genpeep.c (main): Conditionalize entire output on HAVE_peephole.
        * flags.h (flag_peephole2): Declare.
        * toplev.c: New pass peephole2.  New flag -fpeephole2.

        * genattrtab.c (main): Count DEFINE_PEEPHOLE2.
        * gencodes.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genemit.c (max_operand_1): Look for the max scratch operand.
        (gen_rtx_scratch): New.
        (gen_exp): Use it, and pass on new arg subroutine_type.
        (gen_expand): Take max scratch into account.
        (gen_split): Emit peephole2 functions.
        (output_peephole2_scratch): New.
        (main): Include hard-reg-set.h and resource.h.  Handle peephole2.
        * genrecog.c (routine_type): Add PEEPHOLE2.
        (IS_SPLIT): New.
        (make_insn_sequence): Match outer parallel for peep2.  Discard
        top level scratches and dups.
        (add_to_sequence): New args insn_type and top.  Update all callers.
        Handle toplevel peep2 matching insns.
        (write_subroutine): Handle peep2.
        (write_tree_1): Likewise.
        (write_tree): Likewise.
        (main): Likewise.
        (change_state): New arg afterward.  Update all callers.
        Handle matching separate insns.
        * recog.c (recog_next_insn): New.
        (peephole2_optimize): New.
        * rtl.def (DEFINE_PEEPHOLE2): New.
        * resource.c (find_free_register): New argument last_insn.  Use it
        to find a register available through the entire span.
        * resource.h (find_free_register): Update prototype.

Tue Aug 31 11:51:06 1999  Jim Kingdon  <http://developer.redhat.com>

        * i386.c (output_strlen_unroll): Don't write xops[7]
        label if it wasn't set.

1999-08-31 12:44 -0700  Zack Weinberg  <zack@bitmover.com>

        * cpplib.c (struct directive): Const-ify name pointer and
        function pointer prototype.
        (validate_else, do_define, do_line, do_include, do_undef,
        do_error, do_pragma, do_ident, do_if, do_xifdef, do_else,
        do_elif, do_endif, do_sccs, do_assert, do_unassert,
        do_warning): Const-ify second arg.
        (directive_table): Mark const.  Reorder entries by frequency
        of usage, record statistics.

1999-08-31 12:20 -0700 Zack Weinberg <zack@bitmover.com>

        * rtl.h (RTL_CHECK1, RTL_CHECK2): New macros which type- and
        bounds- check RTL accesses if --enable-checking.
        (RTVEC_ELT): Bounds check if --enable-checking.
        (XWINT, XINT, XSTR, XEXP, XVEC, XMODE, XBITMAP, XTREE,
        XBBDEF): Use RTL_CHECK1/RTL_CHECK2 as appropriate.
        (XVECEXP, XVECLEN): Define in terms of XVEC, RTVEC_ELT, and
        GET_NUM_ELEM.
        (X0WINT, X0INT, X0STR, X0EXP, X0VEC, X0MODE, X0BITMAP, X0TREE,
        X0BBDEF, X0ADVFLAGS):  New macros for accessing '0' slots of RTXes.

        (ADDR_DIFF_VEC_FLAGS): Use X0ADVFLAGS.
        (NOTE_SOURCE_FILE): Use X0STR.
        (NOTE_BLOCK_NUMBER, NOTE_EH_HANDLER, LABEL_NUSES,
        MEM_ALIAS_SET): Use X0INT.
        (NOTE_RANGE_INFO, NOTE_LIVE_INFO, NOTE_BASIC_BLOCK,
        JUMP_LABEL, LABEL_REFS, LABEL_NEXTREF, CONTAINING_INSN):
        Use X0EXP.
        * real.h (CONST_DOUBLE_CHAIN): Use X0EXP.
        * rtl.c (copy_rtx, copy_most_rtx): Copy '0' slots with X0WINT.
        (rtl_check_failed_bounds, rtl_check_failed_type1,
        rtl_check_failed_type2, rtvec_check_failed_bounds): New
        functions.
        (fancy_abort): Fix comment.

        * cse.c (canon_hash): Read CONST_DOUBLE data slots with XWINT.
        (cse_insn): Decrement LABEL_NUSES for jump target before
        deleting jump insn.
        * emit-rtl.c (gen_rtx_CONST_DOUBLE): Use X0EXP for slot 1.
        * final.c (alter_subreg): Compute regno before changing x to
        REG; set REGNO(x) after changing it.
        * flow.c (count_basic_blocks): Use XWINT to inspect EH_REGION
        notes containing CONST_INTs.
        (delete_eh_regions): Use NOTE_EH_HANDLER.
        * function.c (put_reg_into_stack): Make reg a MEM before
        initializing it.
        (fixup_var_refs_insns):  Save REG_NOTES (insn) in case we
        delete insn.
        (gen_mem_addressof): Make reg a MEM before initializing it.
        * integrate.c (copy_rtx_and_substitute): Copy '0' slots with
        X0WINT.
        * local-alloc.c (update_equiv_regs): Zap REG_NOTES before
        deleting an insn, not after.
        (block_alloc): Only look at PATTERN(insn) if we have to, and
        only if it's format class 'i'.
        * loop.c (check_dbra_loop): Check bl->biv->add_val is a
        CONST_INT before using its INTVAL.
        * print-rtl.c (print_rtx): Use X0STR.
        * regmove.c (fixup_match_1): Don't look at PATTERN of
        non-class-'i' insn chain elements.
        * reload.c (loc_mentioned_in_p): Take address of
        in->fld[1].rtx directly.
        * reload1.c (reload): Change reg to a MEM before initializing
        it.
        * varasm.c (mark_constant_pool): Skip CONST_DOUBLES, which
        have no names.
        * config/i386/i386.md (decrement_and_branch_if_zero): Fix typo.

Fri Aug 20 13:43:41 1999  Andrew Haley  <aph@cygnus.com>

        * config/mips/mips.c (machine_dependent_reorg): Force a
        barrier to output the local constant pool if a barrier hasn't
        been found at a natural point in the instruction stream.

Mon Aug 30 22:04:36 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (language_string): Constify.

        * dwarf2out.c (language_string): Remove declaration.

        * dwarfout.c (language_string): Likewise.

        * toplev.c (language_string, init_parse, finish_parse): Likewise.

        * tree.h (language_string, init_parse, finish_parse): Declare.

        * i386/sun386.h (language_string): Remove declaration.

        * mips.h (language_string): Likewise.

        * nextstep.h (language_string): Likewise.

        * nextstep21.h (language_string): Likewise.

        * rs6000.c (language_string): Likewise.

Mon Aug 30 20:56:08 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (OBJS, PROTO_OBJS): Remove getpwd.o.
        (getpwd.o): Remove target.

        * getpwd.c: Delete file.  Its in libiberty now.

        * dbxout.c (getpwd): Don't prototype.
        * dwarf2out.c (getpwd): Likewise
        * dwarfout.c (getpwd): Likewise
        * final.c (getpwd): Likewise.
        * protoize.c (getpwd): Likewise.

Mon Aug 30 20:21:34 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cse.c: (fold_rtx): Cast to HOST_WIDE_INT in left shift.

Mon Aug 30 16:07:49 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (new_insn_dead_notes): Use sets_reg_or_subreg not
        mark_set_resources.

Mon Aug 30 12:23:53 1999  Jim Wilson  <wilson@cygnus.com>

        * fixinc/Makefile.in (subdir): New.
        (fixincl.x, inclhack.sh, fixincl.sh): Use cp instead of $(CP).
        (Makefile): New.

Mon Aug 30 01:02:09 1999  Jeffrey A Law  (law@cygnus.com)

        * emit-rtl.c (copy_rtx_if_shared): A MEM which references
        virtual_stack_vars_rtx or virtual_incoming_args_rtx can not
        be shared.

        * invoke.texi: Fix typo.

        * dwarf2out.c (mem_loc_descriptor): New argument MODE.  All callers
        changed.  Handle autoincrement addressing modes.

        * integrate.c (copy_rtx_and_substitute): Handle internal_arg_pointer
        just like we would the virtual incoming args register when
        integrating.

Sun Aug 29 23:17:54 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.h (ASM_FILE_START): Specify complete filename, including
        path, in .file directive.

Sun Aug 29 05:06:43 1999  Russ Allbery  <rra@stanford.edu>

        * gcc.texi (External Bugs): Remove obsolete note about Perl on
        SunOS.

1999-08-29 08:38 -0700  Zack Weinberg  <zack@bitmover.com>

        * stdbool.h: Make the typedef name _Bool, with bool a #defined
        alias.

Sun Aug 29 09:36:50 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tree.c (tree_code_name): Constify a char*.

        * tree.h (tree_code_name, decl_printable_name): Likewise.

        * function.h (struct function): Likewise.

        * toplev.c (decl_name, decl_printable_name): Likewise.

        * vax/vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Likewise.

        * objc/objc-act.c (decl_printable_name): Remove redundant prototype.
        (init_objc): Remove function pointer cast.

Sun Aug 29 05:01:17 1999  John David Anglin <dave@hiauly1.hia.nrc.ca>

        * pa.md (interspace_jump): New pattern.
        (builtin_longjmp): New expander.

1999-08-29  Bernd Schmidt  <bernds@cygnus.co.uk>

        * fp-bit.c (add, sub, multiply, divide, compare, _eq_f2, _ne_f2,
        _gt_f2, _ge_f2, _lt_f2, _le_f2, float_to_si, float_to_usi, negate,
        sf_to_df, df_to_sf): Fix potential problem with alias analysis.

Sun Aug 29 04:30:52 1999  John Wehle  (john@feith.com)

        * jump.c (delete_prior_computation): Also check calls
        to constant functions.  Don't bother checking for a
        REG_UNUSED note before adding it.
        (delete_computation): Handle multi-word hard registers
        when synthesizing missing REG_DEAD notes for a register
        which is both set and used by an insn.

1999-08-29  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * loop.c (this_loop_info): New variable.
        (loop_has_call, loop_has_volatile, loop_has_tablejump,
        loop_continue, loops_enclosed): Replace with fields in this_loop_info.
        All uses updated.
        (prescan_loop, strength_reduce): New argument loop_info.  All callers
        updated.
        (scan_loop): New variable loop_info, initialise to address of
        this_loop_info.
        (prescan_loop): Set loop_info->vtop if find NOTE_INSN_LOOP_VTOP.
        Delete variable loop_has_multiple_exit targets and replace with
        field in this_loop_info.
        (find_and_verify_loops): Rename this_loop to this_loop_num.
        (strength_reduce): Delete loop_iteration_info.  Replace variable
        loop_info with function argument of same name.
        (insert_bct): Rework test for loop being completely unrolled.

        * loop.h (struct loop_info): New fields num, loops_enclosed,
        has_call, has_volatile, has_tablejump, has_multiple_exit_targets,
        has_indirect_jump, and cont.  Redefine use of unroll_number.
        (loop_unroll_number): Delete.

        * unroll.c (unroll_loop): Store loop unroll count in unroll_number
        field of loop_info.
        (loop_iterations): Delete variable vtop and instead use
        loop_info->vtop computed in prescan_loop.

Sun Aug 29 03:27:23 1999  Scott Weikart <scott@igc.apc.org>

        * fix-header.c (main): Do not pass a null pointer to strcmp.

Sun Aug 29 03:18:48 1999  William Bader  (william@nscs.fast.net)

        * configure.in (i[34567]86-*-sco3.2v4*): Target does not truncate
        filenames.
        * configure: Rebuilt.

Sat Aug 28 19:36:05 1999  Jeffrey A Law  (law@cygnus.com)

        * jump.c (jump_optimize_1): Do not delete assignments to
        internal_arg_pointer.
        * cse.c (delete_trivially_dead_insns): Always consider a set of
        the internal_arg_pointer live.

Sat Aug 28 16:24:31 1999  Richard Henderson  <rth@cygnus.com>

        * flow.c (flow_delete_insn_chain): Rename from delete_insn_chain.
        (update_life_info) [REG_WAS_0]: Search the original insns rather
        than the new insns for the note.  Fix typos finding note_dest.
        If no dest found, discard the note rather than abort.
        [REG_NOALIAS]: Handle as REG_NO_CONFLICT.
        (replace_insns): Remove the old insn list after update_life_info
        not before.

Sat Aug 28 16:20:12 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (sched_analyze): Clear LOG_LINKS before calling
        sched_analyze_insn.
        (sched_analyze_1): Let add_dependence care for not adding dups.
        (sched_analyze_2): Likewise.
        (add_branch_dependences): Likewise.

Sat Aug 28 15:58:16 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/winnt.c (export_list): New type.
        (exports_head): Rename to
        (export_head):  this.
        (i386_pe_record_exported_symbol): Add is_data flag.
        (i386_pe_asm_file_end): Emit directive for exported variables.
        * i386/cygwin.h (i386_pe_record_exported_symbol): Update
        prototype.
        * i386/cygwin.h (ASM_OUTPUT_COMMON): Specify symbol type.
        (ASM_DECLARE_OBJECT_NAME): Likewise.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        * i386/uwin.h (ASM_DECLARE_FUNCTION_NAME): Likewise.

Fri Aug 27 15:35:24 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (fold_rtx): Work around bug in Sun V5.0 compilers.

        * pa.c (emit_move_sequence): Do not stop on SUBREG_WORD of an
        operand.

Fri Aug 27 14:01:19 1999  Marc Espie <espie@cvs.openbsd.org>

        * config/openbsd.h: Define SET_ASM_OP.
        * tm.texi: cross-reference SET_ASM_OP in the index.

1999-08-27 13:27 -0700  Zack Weinberg  <zack@bitmover.com>

        * rtl.c: Define CONST_DOUBLE_FORMAT to the appropriate format
        for a CONST_DOUBLE, at compile time.  Initialize rtx_length
        and class_narrowest_mode at compile time.  Kill init_rtl.
        Mark rtx_length, mode_class, mode_size, mode_unit_size,
        mode_wider_mode, mode_mask_array, class_narrowest_mode, and
        rtx_format as const.  Kill all references to EXTRA_CC_MODES or
        EXTRA_CC_NAMES.
        * rtl.def (CONST_DOUBLE): Use CONST_DOUBLE_FORMAT macro for
        format.
        * rtl.h: Declare rtx_length and rtx_format as const.
        * machmode.def: Define CC().  Use CC() to define CCmode.  If
        EXTRA_CC_MODES is defined, expand it here.
        * machmode.h: Declare mode_class, mode_size, mode_unit_size,
        mode_wider_mode, mode_mask_array, and class_narrowest_mode as
        const.  Kill all references to EXTRA_CC_MODES.

        * toplev.c: Don't prototype or call init_rtl.
        * optabs.c: Don't call init_mov_optab.
        * genemit.c: Don't generate init_mov_optab.  Don't call
        init_rtl.
        * gengenrtl.c: Duplicate calculation of CONST_DOUBLE_FORMAT
        here.
        * genattr.c, genattrtab.c, gencodes.c, genconfig.c,
        genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c,
        genrecog.c: Don't call init_rtl.

        * arc.h, arm.h, c4x.h, i386.h, i960.h, m88k.h, pa.h, pdp11.h,
        rs6000.h, sparc.h: Don't define EXTRA_CC_NAMES.  Use CC() in
        definition of EXTRA_CC_MODES.

        * md.texi: Kill ref to EXTRA_CC_NAMES.
        * tm.texi: Document new way to define EXTRA_CC_MODES.

        * genrecog.c: Do not look up the name of a define_split.
        (Unrelated bugfix.)

Fri Aug 27 17:03:42 1999  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.md: Fix typo introduced by previous delta.

Fri Aug 27 09:48:59 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * gcc.c (fatal): Make definition static to match prototype.

Fri Aug 27 10:33:35 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * combine.c (get_last_value): Don't look for earlier sets if the last
        known set is somewhere in between the insns being combined.

Fri Aug 27 10:03:12 BST 1999  Nathan Sidwell  <nathan@acm.org>

        * configure.in: Don't use shell ! to negate exit codes
        * configure: Regenerate

Fri Aug 27 09:36:17 1999  Andreas Schwab  <schwab@suse.de>

        * function.c (assign_stack_temp_for_type): Fix change of Mar 5 for
        the fact that ALIGN is measured in bits, not bytes.

1999-08-27 00:27 -0700  Zack Weinberg  <zack@bitmover.com>

        * errors.c: New file; defines functions error, warning, and
        fatal, variables have_error and progname.
        * errors.h: New file; prototypes and decls for stuff in errors.c.

        * Makefile: Add rules to build errors.o and
        $(HOST_PREFIX)errors.o.  Link genconfig, gencodes, genemit,
        genopinit, genrecog, genextract, genpeep, genattr, and
        genoutput with errors.o.  Add errors.h to deps of genconfig.o,
        gencodes.o, genemit.o, genopinit.o, genrecog.o, genextract.o,
        genpeep.o, genattr.o, and genoutput.o.

        * genconfig.c, gencodes.c, genemit.c, genopinit.c, genrecog.c,
        genextract.c, genpeep.c, genattr.c:  Include errors.h.  Don't
        define or prototype fatal.  Set progname at beginning of main.
        * genoutput.c:  Likewise, and don't define or prototype error
        either.

        * c-typeck.c (c_expand_start_case): Return immediately if exp
        is an ERROR_MARK.
        * fold-const.c (operand_equal_p): Return immediately if arg1
        or arg0 are ERROR_MARKs.
        * stor-layout.c (layout_type [case RECORD_TYPE]): Ignore
        fields of type ERROR_MARK when calculating if the record can
        go in a register.

Fri Aug 27 01:03:48 1999  Jim Kingdon  <http://developer.redhat.com>
        with much help from Jeffrey A Law and Richard Henderson

        * i386.md: In the 6 insns which call output_fix_trunc,
        earlyclobber operands[0].

Fri Aug 27 01:01:51 1999  Philip Blundell  <pb@nexus.co.uk>

        * jump.c (duplicate_loop_exit_test): Call reg_scan_update after
        creating new registers.

1999-08-26 23:09 -0700  Zack Weinberg  <zack@bitmover.com>

        * i386.h: Declare ix86_cpu_string, ix86_arch_string,
        i386_reg_alloc_order, i386_regparm_string,
        i386_align_loops_string, i386_align_jumps_string,
        i386_align_funcs_string, i386_preferred_stack_boundary_string,
        and i386_branch_cost_string as type "const char *".
        * i386.c: Define all above strings as type "const char *".

Thu Aug 26 20:36:30 1999  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (output_aranges): Check DWARF_OFFSET_SIZE not PTR_SIZE
        when emitting alignment padding.  Emit padding byte of 0 instead of 4.

Thu Aug 26 18:11:20 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (array_type_nelts): Don't create RTL_EXPRs from
        SAVE_EXPRs unless the SAVE_EXPRs have already been expanded.

Thu Aug 26 19:33:23 1999  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (DWARF2_ASM_LINE_DEBUG_INFO): Add default definition.
        (debug_dwarf): Add DWARF2_ASM_LINE_DEBUG_INFO support.
        (dwarf2out_line, dwarf2out_finish): Likewise.
        * tm.texi (DWARF2_ASM_LINE_DEBUG_INFO): Add documetation.

Thu Aug 26 16:10:56 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * tree.c (lang_unsave_expr_now) : Correct return type.
        * tree.h (lang_unsave_expr_now) : Same.

Thu Aug 26 13:12:29 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (cint_ok_for_move): Use CONST_INT_OK_FOR_LETTER_P macros
        instead of duplicating code.

Thu Aug 26 18:32:32 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * gcse.c (hash_scan_insn): Don't scan obvious no-ops.

1999-08-26 09:42 -0700  Zack Weinberg  <zack@bitmover.com>

        * tree.h: fancy_abort always takes three args.
        * resource.c: Move include of system.h before toplev.h.

Thu Aug 26 09:46:16 1999  Nick Clifton  <nickc@cygnus.com>

        * dwarf2out.c (mem_loc_descriptor): Accept LABEL_REFs as well
        as SYMBOL_REFs.

1999-08-25 22:10 -0700  Zack Weinberg  <zack@bitmover.com>

        * system.h: Don't redefine abort or trim_filename.
        * rtl.h: Define abort to fancy_abort (__FILE__, __LINE__, 0)
        or fancy_abort (__FILE__, __LINE__, __FUNCTION__) depending on
        whether or not __FUNCTION__ is available.
        * tree.h: Duplicate rtl.h's definition of abort, for files
        that don't include rtl.h.  Delete all code to perform type
        checking with a compiler other than GCC.
        * varray.h: Delete all code to perform type checking with a
        compiler other than GCC.  Make VARRAY_CHECK() always evaluate
        its arguments exactly once, using a statement expression.
        Adjust the VARRAY_<type> accessor macros to match.
        * toplev.h (fatal_insn, fatal_insn_not_found): Kill.
        (_fatal_insn, _fatal_insn_not_found): New fns, take info on
        caller's location.  Define fatal_insn and fatal_insn_not_found
        as macros that use _fatal_insn and _fatal_insn_not_found.
        (fancy_abort, trim_filename): Kill prototypes.

        * rtl.c (trim_filename): Move here from toplev.c.
        (fancy_abort): New function.
        (DIR_SEPARATOR): Provide default definition.
        * tree.c (tree_check_failed, tree_class_check_failed): Go
        through fancy_abort.
        (tree_check, tree_class_check, cst_or_constructor_check,
        expr_check): Delete.
        * varray.c (varray_check_failed): New function.
        * toplev.c (fatal_insn, fatal_insn_not_found): Replace with
        _fatal_insn and _fatal_insn_not_found.  Go through
        fancy_abort.
        (trim_filename, fancy_abort): Delete.

        * builtins.c (expand_builtin_args_info): Report ICE with abort.
        * except.c (start_catch_handler): Report ICE with error/abort
        combo.
        * final.c (output_operand_lossage): Likewise.
        * flow.c (verify_flow_info): Likewise.

        * gcc.c: Prototype fatal.
        * gengenrtl.c: Undef abort after including rtl.h not system.h.
        * genattr.c, genattrtab.c, genemit.c, genextract.c,
        genflags.c, genopinit.c, genoutput.c, genpeep.c, genrecog.c:
        Don't define fancy_abort.

Wed Aug 25 17:56:59 1999  Richard Henderson  <rth@cygnus.com>

        * optabs.c (emit_cmp_and_jump_insns): Be more thorough in
        canonization.

Wed Aug 25 15:35:55 1999  Richard Henderson  <rth@cygnus.com>

        * m88k.h (VERSION_INFO2): Kill.
        (VERSION_STRING): Kill.
        (TM_RCS_ID): Kill.
        (VERSION_INFO1): Tidy.
        (TARGET_VERSION): Update.
        * m88k/dgux.h (VERSION_INFO2): Kill.
        (ASM_FIRST_LINE): Adjust for death of VERSION_STRING.
        * m88k/luna.h (VERSION_INFO1): Tidy.
        * m88k/sysv4.h (VERSION_INFO1): Likewise.
        * m88k.c (out_rcs_id, tm_rcs_id): Kill.
        (output_file_start): Adjust for death of VERSION_STRING.

1999-08-25 13:51 -0700  Jim Meyering  <meyering@ascend.com>

        * cpplib.c (detect_if_not_defined): New function.
        (do_if): Use it to detect potential once-only headers.

Wed Aug 25 14:00:18 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * c-common.c (combine_strings): Always set TREE_CONSTANT.

Wed Aug 25 15:27:22 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * combine.c (nonzero_bits) : Allow single-ly set registers to be
        anywere in the function only if they are pseudos and set before
        being used (not live at the start of the function).
        (num_sign_bit_copies) : Same.
        (get_last_value_validate) : Same.
        (get_last_value) : Same.

Wed Aug 25 11:13:29 1999  Richard Henderson  <rth@cygnus.com>

        * loop.c (express_from): Try harder to unify (* c N) and (* c M)
        where N and M are constant and N is an integer multiple of M.

Wed Aug 25 13:55:47 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * sbitmap.h (sbitmap_intersection_of_succs): Add prototype.
        (sbitmap_intersection_of_preds, sbitmap_union_of_succs,
        sbitmap_union_of_preds): Add prototypes.
        * sbitmap.c (sbitmap_intersection_of_succs): New function to compute
        the intersection of successors with the new flow graph structures.
        (sbitmap_intersection_of_preds): New function to compute the
        intersection of predecessors with the new flow graph structures.
        (sbitmap_union_of_succs): New function to compute the union of
        successors with the new flow graph structures.
        (sbitmap_union_of_preds): New function to compute the union of
        predecessors with the new flow graph structures.
        * gcse.c (compute_rdm, compute_available): Use new sbitmap routines.
        (expr_reaches_here_p): Use edge and basic_block structures instead
        of s_preds and s_succs.
        (compute_cprop_avinout): Use new sbitmap routines.
        (pre_expr_reaches_here_p): Use edge and basic_block structures instead
        of s_preds and s_succs.
        * flow.c (compute_flow_dominators): Compute dominators using
        edges and basic blocks instead of s_preds and s_succs.

Wed Aug 25 13:41:47 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * lists.c (unused_insn_list, unused_expr_list): New file for
        maintaining various types of lists. New statics for maintaining a
        cache of available INSN_LIST and EXPR_LIST nodes.
        (free_list): Static function for freeing a list of INSN/EXPR nodes.
        (alloc_INSN_LIST): Function to get a free INSN_LIST node.
        (alloc_EXPR_LIST): Function to get a free EXPR_LIST node.
        (init_EXPR_INSN_LIST_cache): Initialize the cache lists.
        (free_EXPR_LIST_list): Free an entire list of EXPR_LIST nodes.
        (free_INSN_LIST_list): Free an entire list of INSN_LIST nodes.
        (free_EXPR_LIST_node): Free an individual EXPR_LIST node.
        (free_INSN_LIST_node): Free an individual INSN_LIST node.
        * haifa-sched.c (unused_insn_list, unused_expr_list): Moved to flow.c
        (free_list, alloc_INSN_LIST, alloc_EXPR_LIST): Moved to flow.c
        (remove_dependence, free_pending_lists): Use new global routines.
        (flush_pending_lists, sched_analyze_insn): Use new global routines.
        (sched_analyze, compute_block_backward_dependences): Use new routines.
        (sched_analyze_1, sched_analyze_2): Use new routines.
        (schedule_insns): Use new global routines.
        * rtl.h (init_EXPR_INSN_LIST_cache, free_EXPR_LIST_list): Add function
        prototypes.
        (free_INSN_LIST_list, free_EXPR_LIST_node): Add prototypes.
        (free_INSN_LIST_node, alloc_INSN_LIST, alloc_EXPR_LIST): Add function
        prototypes.
        * toplev.c (rest_of_compilation): Initialize node cache.
        * Makefile.in (OBJS): Add lists.o to list of object files.
        (lists.o): Add dependancies.

Wed Aug 25 17:31:56 1999  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.md: Fix compile time warning messages.
        * config/v850/v850.c: Fix compile time warning messages.
        * config/v850/v850.h: Fix compile time warning messages.

Wed Aug 25 09:44:43 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattr.c (gen_attr): Add prototype arguments for get_attr_*().
        Remove unused prototype for `init_lengths'.

Wed Aug 25 09:32:31 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * calls.c (emit_call_1): Mark parameter `stack_size' with
        ATTRIBUTE_UNUSED.
        (expand_call): Initialize variable `insn'.
        (emit_library_call): Likewise for variable `high_to_save'.
        (emit_library_call_value): Likewise.
        (store_one_arg): Likewise for variables `lower_bound' and
        `upper_bound'.

        * combine.c (try_combine): Likewise for variables `i2_code_number'
        and `other_code_number'.
        (find_split_point): Likewise for variables `pos', `unsignedp' and
        `inner'.
        (simplify_if_then_else): Likewise for variables `op' and `c1'.
        (simplify_and_const_int): Remove unused variable `width'.
        (merge_outer_ops): Likewise.

        * cse.c (simplify_binary_operation): Cast an INTVAL() to `unsigned
        HOST_WIDE_INT' when comparing against one.
        (simplify_relational_operation): Likewise.
        (cse_insn): Initialize variables `src_eqv_volatile',
        `src_eqv_in_memory', `src_eqv_in_struct', `src_eqv_hash' and `sets'.

        * final.c (init_final): Constify parameter `filename'.
        (final_start_function): Mark parameter `optimize' with
        ATTRIBUTE_UNUSED.
        (profile_function): Likewise for parameters `first' and `optimize'.
        (output_source_line): Likewise for parameter `file'.

        * integrate.c (subst_constants): Cast a value to `size_t' when
        comparing against one.
        (mark_stores): Initialize variable `mode'.  Cast a value to
        `size_t' when comparing against one.

        * integrate.h (MAYBE_EXTEND_CONST_EQUIV_VARRAY): Likewise.

        * loop.c (move_movables): Initialize variable `first'.
        (strength_reduce): Likewise for variable `increment'.
        (check_dbra_loop): Likewise for variable `comparison_val'.  Cast a
        value to `size_t' when comparing against one.
        (load_mems): Initialize variable `end_label'.

        * output.h (init_final): Constify parameter.

        * reload.c (decompose): Initialize variable `base'.

        * reload1.c (reload): Likewise for variable `is_scalar'.
        (spill_hard_reg): Mark parameter `dumpfile' with ATTRIBUTE_UNUSED.
        (choose_reload_regs): Initialize variable `mode'.
        (emit_reload_insns): Likewise for variable `store_insn'.
        (reload_cse_noop_set_p): Mark parameter `insn' with
        ATTRIBUTE_UNUSED.
        (reload_combine): Initialize variable `set'.

        * unroll.c (unroll_loop): Likewise for variable `local_label'.
        (copy_loop_body): Cast a value to `size_t' when comparing against
        one.

        * varasm.c (assemble_variable): Initialize variable `size_tree'.
        (const_hash): Add an `else abort()' in an if-else-if-else sequence.
        (remove_from_pending_weak_list): Mark parameter `name' with
        ATTRIBUTE_UNUSED.

Wed Aug 25 11:18:39 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * toplev.c (rest_of_compilation): Use decl_printable_name when opening
        gcse dump file.

Wed Aug 25 10:57:12 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/telf.h (ASM_WEAKEN_LABEL): Define.
        (ASM_DECLARE_FUNCTION_NAME): Define.
        (TYPE_ASM_OP, SIZE_ASM_OP, TYPE_OPERAND_FORMAT,
        ASM_DECLARE_RESULT, ASM_DECLARE_OBJECT_NAME,
        ASM_FINISH_DECLARE_OBJECT, ASM_DECLARE_FUNCTION_SIZE): Define if
        not already defined.

Wed Aug 25 01:36:11 1999  John David Anglin  <dave@hiauly1.hia.nrc.ca>

        * calls.c (emit_call_1): Use call_pop/call_value_pop for all values
        of n_popped when call/call_value are not defined.

Wed Aug 25 01:25:14 1999  Jeffrey A Law  (law@cygnus.com)

        * tm.texi: GNU CC -> GCC conversion.
        (CC1_SPEC): Indicate it is used for all language front ends.

Tue Aug 24 23:43:03 1999  Mark Mitchell  <mark@codesourcery.com>

        * flow.c (delete_block): Spell NOTE_INSN_EH_REGION_BEG and
        NOTE_INSN_EH_REGION_END correctly.

Tue Aug 24 23:26:44 1999  Michael Tiemann  <tiemann@holodeck.cygnus.com>
                          Jeff Law <law@cygnus.com>

        * loop.c (strength_reduce): Automatically unroll loops if the
        unrolled loop size is smaller than the rolled loop size.

        * loop.c (insert_bct): Replace use of sdiv_optab with asr_optab
        and delete comment that code should be rewritten.

Tue Aug 24 22:56:35 1999  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (find_rgns): Mark a block found during the DFS search
        as reachable.

        * haifa-sched.c (get_visual_tbl_length): Fix off-by-one error.

Tue Aug 24 22:41:06 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * fixinc/mkfixinc.sh: Don't fix uwin headers.
        * i386/uwin.h (MD_STARTFILE_PREFIX): Define.
        (LINK_SPEC): Add -u _main when building executables.
        (ASM_DECLARE_FUNCTION): Update from Cygwin.
        (ASM_FILE_END): Use the default for ix86-pe.
        * i386/xm-uwin.h (HAVE_BCOPY): Undefine.

Tue Aug 24 20:49:47 1999  Art Haas  <ahaas@neosoft.com>

        * final.c (output_addr_const): Handle case where ASM_OPEN_PAREN
        and ASM_CLOSE_PAREN are empty strings.

Wed Aug 25 12:46:22 1999  Fred Fish  <fnf@cygnus.com>
                          Geoffrey Keating <geoffk@cygnus.com>

        * Makefile.in (PREPROCESSOR_DEFINES): New macro.
        (protoize.o):  Use PREPROCESSOR_DEFINES and DRIVER_DEFINES.
        (unprotoize.o): Ditto.
        (test-protoize-simple): Don't define STD_PROTO_DIR.
        * protoize.c: Use PARAMS rather than PROTO.  Minor whitespace
        changes to make 'test-protoize-simple' pass.
        (STD_PROTO_DIR): Remove define.
        (STANDARD_EXEC_PREFIX): Supply default define.
        (standard_exec_prefix): New variable, init to STANDARD_EXEC_PREFIX.
        (target_machine): New variable, init to DEFAULT_TARGET_MACHINE.
        (target_version): New variable, init to DEFAULT_TARGET_VERSION.
        (GET_ENV_PATH_LIST): New macro.
        (default_syscalls_dir): No longer initialized to STD_PROTO_DIR.
        (do_processing): Initialize default_syscalls_dir using new
        macros.  Use it to initialize syscalls_absolute_filename.

Tue Aug 24 16:58:15 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Do cmov opt on any single-set; force
        B into a register before emit_conditional_move.

Tue Aug 24 15:37:03 1999  Richard Henderson  <rth@cygnus.com>

        * fold-const.c (fold): Reassociate (+ (+ (* a b) c) (* d e))
        as (+ (+ (* a b) (* d e)) c).  Factor a common power-of-two
        multiplicand out of (+ (* a b) (* c d)).

Tue Aug 24 11:46:10 1999  Bob Manson <manson@cygnus.com>
                          Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (split_hard_reg_notes): Move to flow.c
        (new_insn_dead_notes): Likewise.
        (update_n_sets): Likewise.
        (update_flow_info): Move to flow.c, renamed to update_life_info;
        extend to handle multiple source insns.
        * flow.c: Include resource.h
        (unlink_insn_chain): New.
        (split_hard_reg_notes): New.
        (maybe_add_dead_note): New.
        (maybe_add_dead_note_use): New.
        (find_insn_with_note): New.
        (new_insn_dead_notes): New.
        (update_n_sets): New.
        (sets_reg_or_subreg_1, sets_reg_or_subreg): New.
        (maybe_remove_dead_notes): New.
        (update_life_info): New.
        (prepend_reg_notes): New.
        (replace_insns): New.
        * output.h (update_life_info): Declare.
        * recog.c (split_block_insns): Use update_life_info.
        * resource.c (find_free_register): Use reg_alloc_order, don't use
        fixed regs, make sure the mode is supported, don't use new regs.
        (reg_dead_p): New.
        * rtl.h (replace_insns): Declare.

Tue Aug 24 13:48:39 1999  Nathan Sidwell  <nathan@acm.org>

        * expr.c (expand_expr): Cope with COND_EXPRs with one
        non-returning branch.

Mon Aug 23 22:28:16 1999  Mark Mitchell  <mark@codesourcery.com>

        * expr.c (store_expr): Always pass down the target, even when not
        doing CSE.

1999-08-24  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Define target_cpu_default for v850 targets.
        * configure: Regenerate

        * config/v850/v850.h (TARGET_CPU_generic): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Insist that SImode and larger constant
        addresses are 4 byte aligned.

        * config/v850/v850.c (print_operand): Cope with 'R' format DFmode
        addresses.

Tue Aug 24 09:32:07 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genattr.c (function_unit_desc): Constify a char*.  Add prototype.
        (main): Add prototypes.

        * genattrtab.c (substitute_address, write_const_num_delay_slots,
        attr_eq, attr_numeral, attr_equal_p, attr_copy_rtx): Prototype.
        (write_attr_get): Emit prototypes along with function definition.
        (write_eligible_delay): Mark a parameter with ATTRIBUTE_UNUSED.
        (write_complex_function): Emit static prototype along with
        function definition.

        * genemit.c (gen_split): Emit prototypes along with function
        definition.

        * genoutput.c (output_epilogue): Add prototype to `insn_outfun'.
        Likewise for predicates and `insn_operand_predicate'.
        (process_template): Emit static prototype along with function
        definition.

        * genrecog.c (make_insn_sequence): Constify a char*.  Add
        prototypes for get_split_*().
        (write_subroutine): Emit prototypes along with function
        definition.

Tue Aug 24 12:35:20 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * gcse.c (find_avail_set): Follow chains of register-register copies.
        Use oprs_not_set_p to guarantee that the returned value can be
        substituted.
        (cprop_insn): Don't verify the return value of find_avail_set with
        oprs_not_set_p.

        * gcse.c (cprop_jump): New function, broken out of cprop_insn.
        (cprop_cc0_jump): New function.
        (cprop_insn): Break out new function cprop_jump and use it.
        Also use cprop_cc0_jump for machines with CC0.
        (cprop): Don't crash if cprop_insn turned the insn into a NOTE.

        * tree.h (current_function_calls_setjmp,
        current_function_calls_longjmp): Delete declarations.
        * dsp16xx.c: Include "function.h".
        * elxsi.c: Likewise.
        * gmicro.c: Likewise.
        * h8300.c: Likewise.
        * i370.c: Likewise.
        * m32r.c: Likewise.
        * mn10200.c: Likewise.
        * mn10300.c: Likewise.
        * ns32k.c: Likewise.
        * spur.c: Likewise.
        * v850.c: Likewise.

        * rtl.h (rtx_equal_function_value_matters): Declare.
        * toplev.c (rtx_equal_function_value_matters): Don't declare.
        * cse.c: Likewise.
        * function.c: Likewise.
        * emit-rtl.c: Likewise.

Tue Aug 24 02:47:44 1999  Jeffrey A Law  (law@cygnus.com)

        * expr.c (convert_move): Fix arguments to TRULY_NOOP_TRUNCATION
        call.

1999-08-24 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * jump.c (delete_barrier_successors) Match (set (pc) (pc)) insn
        exactly.

Mon Aug 23 23:35:52 1999  Matthias Klose  <doko@cs.tu-berlin.de>

        * cpp.texi: Add a node documenting macro varargs (copied
        from extend.texi).

1999-08-23 22:23 -0700  Zack Weinberg  <zack@bitmover.com>

        * cppspec.c: Put a null pointer at the end of the new argv.

Mon Aug 23 21:23:24 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in: Remove code to select/de-select the haifa
        scheduler.  Every scheduled port gets haifa now.
        * configure: Rebuilt.
        * flags.h, genattrtab.c, rtl.h, toplev.c: Remove HAIFA ifdefs.
        * sched.c Deleted.
        * Makefile.in: Corresponding changes.

Mon Aug 23 16:04:13 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * optabs.c (prepare_cmp_insn): Turn COMPARISON arg into a pointer.
        All callers changed.
        (prepare_float_lib_cmp): Likewise.
        Use FLOAT_LIB_COMPARE_RETURNS_BOOL.
        * expr.h (emit_float_lib_cmp): Delete declaration.
        * tm.texi (FLOAT_LIB_COMPARE_RETURNS_BOOL): Document.
        * sparc.h (FLOAT_LIB_COMPARE_RETURNS_BOOL): Define.
        * sparc.md (bcc and scc patterns): Don't handle TFmode comparisons
        specially.
        (cmptf): Now conditional on TARGET_HARD_QUAD.

Fri Aug 20 17:52:27 1999  Jim Wilson  <wilson@cygnus.com>

        * resource.c (mark_target_live_regs): Use
        PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.

Fri Aug 20 19:07:55 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.c (rtx_class, note_insn_name, reg_note_name): Constify.

        * rtl.h (rtx_class, reg_note_name, note_insn_name): Likewise.

        * genopinit.c (gen_insn): Use accessor macro, not `rtx_class'.

Fri Aug 20 18:53:43 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.h (rtx_format): Constify a char*.

        * rtl.c (rtx_format): Likewise.
        (copy_rtx, copy_most_rtx, read_rtx): Likewise.
        (init_rtl): Use accessor macro, not `rtx_format'.

        * alias.c (rtx_equal_for_memref_p, find_symbolic_term): Constify a
        char*.

        * caller-save.c (mark_referenced_regs): Likewise.

        * combine.c (subst, make_compound_operation, known_cond,
        gen_rtx_combine, update_table_tick, get_last_value_validate,
        use_crosses_set_p, mark_used_regs_combine, move_deaths): Likewise.

        * cse.c (rtx_cost, mention_regs, canon_hash, exp_equiv_p,
        refers_to_p, canon_reg, fold_rtx, cse_process_notes,
        count_reg_usage): Likewise.

        * emit-rtl.c (gen_rtx, copy_rtx_if_shared, reset_used_flags):
        Likewise.

        * final.c (leaf_renumber_regs_insn): Likewise.

        * flow.c (mark_used_regs, find_use_as_address, dump_flow_info,
        dump_edge_info, count_reg_references): Likewise.

        * function.c (fixup_var_refs_1, walk_fixup_memory_subreg,
        fixup_stack_1, purge_addressof_1, instantiate_virtual_regs_1):
        Likewise.

        * gcse.c (oprs_unchanged_p, hash_expr_1, expr_equiv_p,
        oprs_not_set_p, expr_killed_p, compute_transp, find_used_regs,
        add_label_notes): Likewise.

        * genattrtab.c (attr_rtx, attr_copy_rtx, encode_units_mask,
        clear_struct_flag, count_sub_rtxs, count_alternatives,
        compares_alternatives_p, contained_in_p, walk_attr_value,
        write_expr_attr_cache): Likewise.

        * genconfig.c (walk_insn_part): Likewise.

        * genemit.c (max_operand_1, gen_exp): Likewise.

        * genextract.c (walk_rtx): Likewise.

        * genflags.c (num_operands): Likewise.

        * genoutput.c (scan_operands): Likewise.

        * genpeep.c (match_rtx): Likewise.

        * genrecog.c (add_to_sequence): Likewise.

        * haifa-sched.c (may_trap_exp, sched_analyze_2, attach_deaths):
        Likewise.

        * integrate.c (save_constants, copy_for_inline,
        copy_rtx_and_substitute, subst_constants, restore_constants):
        Likewise.

        * jump.c  (mark_jump_label, invert_exp, redirect_exp,
        rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.

        * local-alloc.c (contains_replace_regs, memref_referenced_p):
        Likewise.

        * loop.c (record_excess_regs, rtx_equal_for_loop_p,
        add_label_notes, replace_call_address, count_nonfixed_reads,
        invariant_p, find_single_use_in_loop, find_mem_givs,
        find_life_end, maybe_eliminate_biv_1, update_reg_last_use):
        Likewise.

        * print-rtl.c (reg_names, print_rtx): Likewise.

        * recog.c (validate_replace_rtx_1, find_single_use_1): Likewise.

        * reg-stack.c (stack_regs_mentioned_p, record_label_references,
        record_reg_life_pat, swap_rtx_condition, goto_block_pat,
        print_blocks): Likewise.

        * regclass.c (fix_register, record_address_regs,
        reg_scan_mark_refs): Likewise.

        * regmove.c (stable_but_for_p): Likewise.

        * reload.c (loc_mentioned_in_p, operands_match_p,
        find_reloads_toplevsubst_reg_equivs, find_reloads_address_1,
        copy_replacements, refers_to_regno_for_reload_p,
        refers_to_mem_for_reload_p, find_inc_amount, regno_clobbered_p,
        reload_when_needed_name, reg_class_names, debug_reload_to_stream):
        Likewise.

        * reload1.c (eliminate_regs, scan_paradoxical_subregs,
        delete_address_reloads_1, count_occurrences,
        reload_cse_mem_conflict_p, reload_combine_note_use,
        add_auto_inc_notes): Likewise.

        * resource.c (mark_referenced_resources, mark_set_resources):
        Likewise.

        * rtlanal.c (rtx_unstable_p, rtx_varies_p, rtx_addr_varies_p,
        reg_mentioned_p, regs_set_between_p, modified_between_p,
        modified_in_p, refers_to_regno_p, reg_overlap_mentioned_p,
        rtx_equal_p, volatile_insn_p, volatile_refs_p, side_effects_p,
        may_trap_p, inequality_comparisons_p, replace_rtx, replace_regs,
        jmp_uses_reg_or_mem, for_each_rtx, regno_use_in): Likewise.

        * sched.c (sched_analyze_2, attach_deaths): Likewise.

        * stupid.c (stupid_mark_refs): Likewise.

        * unroll.c (remap_split_bivs): Likewise.

        * varasm.c (mark_constants): Likewise.

        * a29k/a29k.c (uses_local_reg_p): Likewise.

        * alpha/alpha.c (summarize_insn): Likewise.

        * arm/arm.c (symbol_mentioned_p, label_mentioned_p,
        eliminate_lr2ip): Likewise.

        * arm/thumb.c (symbol_mentioned_p, label_mentioned_p): Likewise.

        * i386/i386.c (symbolic_reference_mentioned_p, copy_all_rtx,
        reg_mentioned_in_mem): Likewise.

        * ns32k/ns32k.c (global_symbolic_reference_mentioned_p,
        symbolic_reference_mentioned_p): Likewise.

        * romp/romp.c (unsigned_comparisons_p, hash_rtx): Likewise.

        * sh/sh.c (regs_used, mark_use): Likewise.

        * vax/vax.c (vax_rtx_cost): Likewise.

Fri Aug 20 18:38:43 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * machmode.h (mode_name): Constify a char*.

        * rtl.c (mode_name): Likewise.

        * genopinit.c (gen_insn): Use accessor macro, not `mode_name'.

        * optabs.c (init_libfuncs): Constify a char*.

        * print-tree.c (mode_name): Remove redundant declaration.
        (print_node): Use accessor macro, not `mode_name'.

        * reload1.c (dump_needs): Constify a char*.  Use accessor macro,
        not `mode_name'.
        (new_spill_reg): Constify a char*.

        * tree.c (mode_name): Remove redundant declaration.

Fri Aug 20 18:31:26 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rtl.c (rtx_name): Constify a char*.

        * rtl.h (rtx_name, fix_sched_param): Likewise.

        * gmicro/gmicro.c (rtx_name): Remove redundant declaration.
        (mypr): Use accessor macro, not `rtx_name'.

        * genemit.c (print_code): Constify a char*.

        * genopinit.c (gen_insn): Use accessor macro, not `rtx_name'.

        * genpeep.c (print_code): Constify a char*.

        * genrecog.c (print_code): Likewise.

        * graph.c (start_fct, start_bb, node_data, draw_edge, end_fct,
        end_bb): Add static prototype.
        (draw_edge): Constify a char*.
        (end_bb): Remove unused parameter.

        * haifa-sched.c (fix_sched_param, safe_concat, print_exp
        print_block_visualization): Constify a char*.

Fri Aug 20 15:02:10 1999  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (c_get_alias_set): Update comment.

1999-08-20  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

        * linux.h (LIB_SPEC): Added.

Fri Aug 20 22:32:17 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (STARTFILE_SPEC): Don't def.

1999-08-19 18:43 -0700  Zack Weinberg  <zack@bitmover.com>

        * tree.c (expr_check): Fix typo in last change.

1999-08-19 14:44 -0700  Zack Weinberg  <zack@bitmover.com>

        * rtl.def (NOTE): Change format to "iuu0n".
        (ADDR_DIFF_VEC): Change format to "eEee0".
        (ADDRESSOF): Change format to "eit".

        * rtl.h (rtvec): Make "elem" an array of rtx, not rtunion.
        (RTVEC_ELT): Change to match.
        (XVECEXP): Use XVEC and RTVEC_ELT.
        (INSN_UID, INSN_CODE, CODE_LABEL_NUMBER, NOTE_LINE_NUMBER,
        ADDRESSOF_REGNO, REGNO, SUBREG_WORD): Use XINT.
        (PREV_INSN, NEXT_INSN, PATTERN, REG_NOTES,
        CALL_INSN_FUNCTION_USAGE, SUBREG_REG, SET_SRC, SET_DEST,
        TRAP_CONDITION, TRAP_CODE): Use XEXP.
        (INTVAL): Use XWINT.
        (ADDRESSOF_DECL): Use XTREE.
        (SET_ADDRESSOF_DECL): Delete.
        (NOTE_DECL_NAME, NOTE_DECL_CODE, NOTE_DECL_RTL,
        NOTE_DECL_IDENTIFIER, NOTE_DECL_TYPE): Kill.  These have been
        ifdefed out since 2.6 at least.
        (gen_rtvec_vv): Delete prototype.

        * rtl.h (rtvec_alloc): rt->elem is now an array of rtx,
        not rtunion.
        (copy_most_rtx): Handle 't' format letter.
        * emit-rtl.c (gen_rtvec_v): rt_val->elem is an array of rtx.
        (gen_rtvec_vv): Delete function.  All callers changed to use
        gen_rtvec_v instead.
        * print-rtl.c (print_rtx): Move special casing of NOTEs to
        the '0' format letter.

        * function.c (gen_mem_addressof): Don't use
        SET_ADDRESSOF_DECL; provide `decl' to gen_rtx_ADDRESSOF
        instead.
        * integrate.c (copy_rtx_and_substitute): Likewise.
        Copy 't' slots with XTREE.
        (subst_constants): Treat 't' slots like '[swi]' slots.
        * cse.c (canon_hash, exp_equiv_p): Treat 't' slots like '0' slots.
        * jump.c (rtx_equal_for_thread_p): Likewise.
        * rtlanal.c (rtx_equal_p): Likewise.
        * stmt.c (expand_end_case): gen_rtx_ADDR_DIFF_VEC now takes
        only four arguments.
        * gengenrtl.c (type_from_format): Provide correct types for
        'b' and 't' slots.


        * tree.h [ENABLE_CHECKING] (TREE_CHECK, TREE_CLASS_CHECK):
        If a recent gcc is in use (always in stage2 and beyond), use
        statement expressions, so we don't make a function call unless
        the check fails.  Evaluate arguments exactly once.
        (CHAIN_CHECK, DO_CHECK, DO_CHECK1, TREE_CHECK1,
        TREE_CLASS_CHECK1, TYPE_CHECK1, DECL_CHECK1, CST_CHECK1):
        Delete.
        (CST_OR_CONSTRUCTOR_CHECK, EXPR_CHECK): Redefine such that
        they evaluate their arguments exactly once, irrespective of
        the compiler in use.

        * tree.c [ENABLE_CHECKING]: Define whichever set of functions
        is used by the currently-enabled check macros.  This is:
        (tree_check_failed, tree_class_check_failed): For gcc.
        (tree_check, tree_class_check, cst_or_constructor_check,
        expr_check): For other compilers.

        * gencheck.c: Do not define any *_CHECK1 macros.

Thu Aug 19 14:42:38 1999  Mike Stump <mrs@wrs.com>
                          Mark Mitchell <mark@codesourcery.com>

        * c-common.c (c_get_alias_set): Fix support for poitners and
        references.

Thu Aug 19 11:51:22 EDT 1999  John Wehle  (john@feith.com)

        * alias.c: Include tree.h.
        (nonlocal_reference_p, mark_constant_function): New functions.
        * flow.c (life_analysis): Call mark_constant_function.
        * rtl.h (mark_constant_function): Declare it.

Thu Aug 19 15:02:01 1999  Nick Clifton  <nickc@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Fix test for
        unrecognisable switches.

Wed Aug 18 23:31:57 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (recombine_givs): Set ix field after sorting.
        (recombine_givs): Remove bogus index / giv lockstep looping.

Wed Aug 18 18:20:40 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * expmed.c (emit_store_flag): If UNSIGNEDP, call unsigned_condition
        on CODE.
        (emit_store_flag_force): Use do_compare_rtx_and_jump.
        (do_cmp_and_jump): Formatting fixes.
        * expr.c (do_compare_and_jump): Renamed from compare; changed to call
        do_compare_rtx_and_jump instead of compare_from_rtx.
        (do_compare_rtx_and_jump): New function; mostly copied from
        compare_from_rtx.
        (do_jump_for_compare): Delete.
        (expand_expr): Use do_compare_rtx_and_jump when handling MAX_EXPR and
        MIN_EXPR.
        (do_jump): Use do_compare_and_jump or do_compare_rtx_and_jump instead
        of compare/do_jump_for_compare pairs.
        (do_jump_by_parts_greater): Use do_jump_by_parts_greater_rtx.
        (do_jump_by_parts_greater_rtx): Use do_compare_rtx_and_jump instead of
        compare_from_rtx/do_jump_for_compare pairs.
        (do_jump_by_parts_equality): Likewise.
        (do_jump_by_parts_equality_rtx): Likewise.
        * expr.h (do_compare_rtx_and_jump): Declare.
        * optabs.c (prepare_cmp_insn): New function, contains most of the code
        that used to be in emit_cmp_insn.
        (cmp_available_p): New function.
        (prepare_operand): New function.
        (emit_cmp_and_jump_insn_1): New function, contains some code that used
        to be in emit_cmp_insn.
        (prepare_float_lib_cmp): Renamed from emit_float_lib_cmp; change some
        parameters to be pointers; don't emit final compare but modify some of
        the values pointed to by the args so the caller can perform the
        correct comparison.
        (expand_binop): Call emit_store_flag_force with signed forms of
        comparison code.
        (expand_abs): Use do_compare_rtx_and_jump instead of compare_from_rtx/
        emit_jump_insn pair.
        (emit_cmp_and_jump_insn): Use prepare_cmp_insn and
        emit_cmp_and_jump_insn_1.  Call emit_queue.
        (emit_cmp_insn): Just call emit_cmp_and_jump_insns with zero for LABEL
        arg.
        * flow.c (tidy_fallthru_edge): If HAVE_cc0, verify insn before a
        jump sets cc0 before deleting it.
        * integrate.c (expand_inline_function): Likewise.
        * unroll.c (unroll_loop): Similar changes in several places.
        (copy_loop_body): If HAVE_cc0, verify insn before a jump sets cc0
        before deleting it.

Wed Aug 18 06:37:44 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * Makefile.in (insn-recog.o): Update dependencies.
        * genrecog.c (main): Make generated file include "function.h".

Sat Aug 14 00:54:57 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * cse.c (cse_insn): Call never_reached_warning when a jump is
        changed to be unconditional.
        * flags.h: Declare warn_notreached.
        * flow.c (delete_block): Call never_reached_warning when
        a block is deleted.
        * jump.c (delete_barrier_successors): Call never_reached_warning
        when we delete everything after a BARRIER.
        (never_reached_warning): New function.
        * rtl.h: Declare never_reached_warning.
        * toplev.c (warn_notreached): New variable.
        (lang_independent_options): Set warn_notreached
        when -Wunreachable-code.
        (compile_file): We need line numbers for -Wunreachable-code.

Tue Aug 17 22:06:11 1999  Jan Hubicka  <hubicka@freesoft.cz>

        * haifa-sched.c (insn_unit): Fix typo on out of range test.
        * sched.c (insn_unit): Likewise.

Tue Aug 17 21:57:23 1999  Andreas Schwab  <schwab@suse.de>

        * combine.c (distribute_notes): Handle REG_EH_RETHROW.

Tue Aug 17 17:39:43 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * flow.c (create_edge_list): Use xmalloc, not malloc.

Tue Aug 17 01:40:54 1999  Loren Rittle  <ljrittle@acm.org>

        * fixinc/inclhack.def (no_double_slash): Do not trash single-line
        C-style comments.  Do not lose the character before double slash.

Mon Aug 16 18:08:22 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * basic-block.h (struct edge_list): Stucture to maintain a vector
        of edges.
        (EDGE_INDEX_NO_EDGE, EDGE_INDEX, INDEX_EDGE_PRED_BB, INDEX_EDGE_SUCC_BB,
         INDEX_EDGE, NUM_EDGES): New Macros for accessing edge list.
        (create_edge_list, free_edge-List, print_edge_list, verify_edge_list):
        New function prototypes.
        * flow.c (create_edge_list): Function to create an edge list.
        (free_edge_list): Discards memory used by an edge list.
        (print_edge_list): Debug output showing an edge list.
        (verify_edge_list): Internal consistency check for an edge list.
        (find_edge_index): Function to find an edge index for a pred and succ.

Mon Aug 16 11:56:36 1999  Mark Mitchell  <mark@codesourcery.com>

        * tree.c (type_hash_add): Use permalloc to allocate nodes in the
        hashtable.

Mon Aug 16 17:04:15 1999  Jorn Rennecke <amylaar@cygnus.co.uk>

        * mips.h (CLASS_CANNOT_CHANGE_SIZE): Define.

Fri Aug 13 15:20:43 1999  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * config/i386/freebsd.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define.

Fri Aug 13 10:21:28 1999  Nick Clifton  <nickc@cygnus.com>

        * toplev.c (rest_of_compilation): Allow machine dependent
        reorganisation pass to place information into the RTL dump
        file if it so wishes.

Sun Aug 15 12:41:21 1999  Jim Wilson  <wilson@cygnus.com>

        * explow.c (hard_function_value): Use VOIDmode instead of
        MAX_MACHINE_MODE.
        * stmt.c (expand_return): Likewise.
        * stor-layout.c (get_best_mode): Likewise.

        * genemit.c (gen_expand): If next is MATCH_PAR_DUP, then output
        emit call instead of emit_insn call.

Sat Aug 14 15:04:06 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * configure.in: Handle --disable/enable-win32-registry.
        * install.texi: Document --disable/enable-win32-registry.
        * acconfig.h (ENABLE_WIN32_REGISTRY): New macro.
        (WIN32_REGISTRY_KEY): New macro.
        * prefix.c: Use to enable/disable win32-specific code.
        (lookup_key): Use versioned key.
        * configure: Regenerate.
        * config.in: Likewise.

Fri Aug 13 17:41:55 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * cpplib.c (read_line_number): New fn, split out of...
        (do_line): Here.

Fri Aug 13 14:18:27 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        tree.c (lang_unsave_expr_now) : New.
        (unsave_expr_now): Call lang_unsave_expr_now.
        tree.h (lang_unsave_expr_now) : New.

Fri Aug 13 00:49:46 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (flag_new_exceptions): On by default.

1999-08-13  Michael Meissner  <meissner@cygnus.com>

        * Makefile.in (GCC_FOR_TARGET): Move -B./ after the tooldir -B.

Fri Aug 13 01:29:57 1999  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * dwarfout.c (fundamental_type_code): Return FT_boolean for
        INTEGER_TYPE with precision==1, it's __java_boolean.

Thu Aug 12 23:51:04 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * global.c (prune_preferences): Move some invariants out of the
        inner loop.

Thu Aug 12 15:30:29 1999  Jesse Perry  (jap@unx.dec.com)

        * configure.in (alpha*-dec-osf*): Add osf5.

Sun Aug  1 22:24:03 1999  Philip Blundell  <philb@gnu.org>

        * configure.in: Rework handling of ARM GNU/Linux slightly.
        (arm*-*-linux-gnuoldld): New target.
        * configure: Regenerate.
        * install.texi (Configurations): Add arm-*-linux-gnu{oldld} and
        arm-*-elf.  Mention that arm-*-linux-gnuaout is obsolete.
        * config/arm/linux-oldld.h: New file.
        * config/arm/linux-elf26.h: Don't include linux-elf.h.
        (TARGET_DEFAULT, SUBTARGET_LINK_SPEC, SUBTARGET_EXTRA_ASM_SPEC):
        Don't define.
        * config/arm/linux-elf.h (ASM_SPEC): Define.
        (TARGET_DEFAULT, SUBTARGET_EXTRA_LINK_SPEC,
        SUBTARGET_EXTRA_ASM_SPEC, CPP_APCS_PC_DEFAULT): Add definitions
        for 26-bit APCS and old linker.
        (CPP_PREDEFINES): Define `__arm__'; don't define `arm' or
        `arm_elf'.
        (FP_DEFAULT): Define to FP_SOFT3 for all machines.
        * config/arm/linux-aout.h (CPP_PREDEFINES): Define `__arm__';
        don't define `arm' or `arm_elf'.
        * config/arm/t-linux (EXTRA_MULTILIB_PARTS, MULTILIB_OPTIONS,
        MULTILIB_DIRNAMES): Define.  Fix typo in comment.

Thu Aug 12 10:14:47 1999  Andreas Schwab  <schwab@suse.de>

        * rtl.texi: Fix typo.

Wed Aug 11 23:50:57 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * invoke.texi (C++ Dialect Options): Add -fms-extensions.

Wed Aug 11 12:59:37 1999  Mark Mitchell  <mark@codesourcery.com>

        * extend.texi (C++ Signatures): Remove node.
        * invoke.texi: Remove discussion of -fhandle-signatures,
        signature, sigof, __signature__, and __sigof__.

Wed Aug 11 03:38:25 1999  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (JAVAGC): Removed.

Wed Aug 11 02:13:26 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin.h (ASM_OUTPUT_ALIGNED_BSS): Define.

1999-08-11 Mark Elbrecht <snowball3@bigfoot.com>

        * i386/djgpp.h (ASM_OUTPUT_ALIGNED_BSS): Define.

1999-08-11  Richard Earnshaw (rearnsha@arm.com)

        * emit-rtl.c (mark_reg_pointer): Don't increase the alignment of
        a register that is already known to be a pointer.

1999-08-11  Bruce Korb  <ddsinc09@ix.netcom.com>

        * fixinc/inclhack.tpl: Only install assert.h conditionally.
        * fixinc/inclhack.sh: Regenerated.
        * fixinc/fixincl.sh: Regenerated.

Wed Aug 11 00:34:22 1999  Joe Buck  <jbuck@synopsys.com>

        * invoke.texi: s/GNU CC/GCC/ for consistency with gcc.texi.
        Fix documentation of -ansi flag to describe its C++ behavior.
        Remove bogus reference to GCC 2.9.

Tue Aug 10 17:19:02 1999  Jim Wilson  <wilson@cygnus.com>

        * config/sh/sh.c (machine_dependent_reorg): Only call PUT_MODE on
        note if it is non-NULL.

Tue Aug 10 10:47:42 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * except.h (eh_nesting_info): Add new structure defintion.
        (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes.
        (reachable_handlers, update_rethrow_references): Add function
        prototypes.
        * rtl.h (struct rtvec_def): Update comments.  REG_EH_RETHROW takes
        a rethrow symbol instead of an integer exception region number.
        * flow.c (Make_edges): Use new exception nesting routines to determine
        which handlers are reachable from a CALL or asynchronous insn.
        Dont add an edge for calls with a REG_EH_REGION of -1 to non-local
        goto receivers.
        (delete_eh_regions): Update rethrow labels, and don't delete
        regions which are the target of a rethrow.
        * except.c (struct func_eh_entry): Add rethrow_ref field, now we can
        avoid overloading the SYMBOL_REF_USED flag.
        (rethrow_symbol_map): Use new rethrow_ref field.
        (rethrow_used): Use new rethrow_ref field.
        (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead
        of an integer.  Fix formatting.
        (output_exception_table_entry): Use new rethrow_ref field.
        (can_throw): Check for EH_REGION_NOTE before deciding
        whether a CALL can throw or not.
        (scan_region): Call rethrow_used() instead of accessing data structure.
        (update_rethrow_references): New function to make sure only regions
        which are still targets of a rethrow are flagged as such.
        (process_nestinfo): New static function to initialize a handler
        list for a specific region.
        (init_eh_nesting_info): New function to allocate and initialize
        the list of all EH handlers reachable from all regions.
        (reachable_handlers): New function to retrieve the list of handlers
        reachable from a specific region and insn.
        (free_eh_nesting_info): New function to dispose of a list of
        reachable handlers.

Tue Aug 10 10:39:31 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

        * flow.c (split_edge): Set JUMP_LABEL field.
        (commit_one_edge_insertion): Set head correctly for insert_before.
        When inserting insns, update insn block numbers if allocated.

Tue Aug 10 09:26:07 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dwarf2out.c (dwarf2out_frame_debug_expr, add_incomplete_type,
        retry_incomplete_types): Add static prototype.
        (stripattributes, dwarf_cfi_name, ASM_OUTPUT_DWARF_STRING,
        dwarf_tag_name, dwarf_attr_name, dwarf_form_name,
        dwarf_stack_op_name, dwarf_type_encoding_name, add_AT_string,
        dwarf2_name, add_name_attribute, lookup_filename, dwarf2out_line,
        dwarf2out_start_source_file, dwarf2out_define, dwarf2out_undef):
        Constify a char*.

        * dwarf2out.h (dwarf2out_define, dwarf2out_undef,
        dwarf2out_start_source_file, dwarf2out_line): Likewise.

Tue Aug 10 09:21:46 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * output.h (assemble_name): Constify a char*.

        * varasm.c (UNIQUE_SECTION, assemble_start_function,
        assemble_variable, assemble_name): Likewise.

        * dwarf2out.c (ASM_NAME_TO_STRING): Likewise.

        * arm/pe.c (arm_pe_unique_section): Likewise.

        * i386/cygwin.h (STRIP_NAME_ENCODING): Likewise.

        * i386/i386-interix.h (STRIP_NAME_ENCODING): Likewise.

        * i386/interix.c (i386_pe_unique_section): Likewise.

        * i386/win32.h (STRIP_NAME_ENCODING): Likewise.

        * i386/winnt.c (i386_pe_unique_section): Likewise.

        * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.

        * mn10200/mn10200.h (ASM_OUTPUT_LABELREF): Likewise.

        * mn10300/mn10300.h (ASM_OUTPUT_LABELREF): Likewise.

        * pa/pa.c (output_call): Likewise.

        * pa/pa.h (ASM_OUTPUT_MI_THUNK): Likewise.

        * pa/som.h (ASM_OUTPUT_FUNCTION_PREFIX): Likewise.

        * rs6000/rs6000.c (rs6000_output_load_toc_table, output_toc):
        Likewise.

        * rs6000/rs6000.h (RS6000_OUTPUT_BASENAME, STRIP_NAME_ENCODING):
        Likewise.

        * rs6000/sol2.h (ASM_OUTPUT_SOURCE_LINE): Likewise.

        * rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME, ASM_OUTPUT_INT,
        STRIP_NAME_ENCODING, ASM_OUTPUT_LABELREF): Likewise.

        * v850/v850.h (ASM_OUTPUT_LABELREF): Likewise.

Mon Aug  9 19:54:05 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * real.c (GET_REAL, PUT_REAL): Use memcpy instead of bcopy.

Mon Aug  9 19:36:00 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tree.h (lang_identify): Constify a char*.
        (print_error_function): Add extern prototype.  Constify a char*.

        * c-lang.c (lang_identify): Constify a char*.

        * objc/objc-act.c (lang_identify): Constify a char*.

Mon Aug  9 16:21:53 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * genpeep.c (main): Make generated file include "function.h".
        * arm.c (function_really_clobbers_lr): Delete INLINE_HEADER case.

Mon Aug  9 10:08:50 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * Makefile.in: Update dependencies.
        * alias.c: Include "function.h"
        * c-decl.c: Likewise.
        * caller-save.c: Likewise.
        * calls.c: Likewise.
        * combine.c: Likewise.
        * cse.c: Likewise.
        * explow.c: Likewise.
        * final.c: Likewise.
        * global.c: Likewise.
        * graph.c: Likewise.
        * local-alloc.c: Likewise.
        * loop.c: Likewise.
        * optabs.c: Likewise.
        * profile.c: Likewise.
        * recog.c: Likewise.
        * regclass.c: Likewise.
        * regmove.c: Likewise.
        * reload.c: Likewise.
        * reorg.c: Likewise.
        * resource.c: Likewise.
        * sched.c: Likewise.
        * stupid.c: Likewise.
        * config/1750a/1750a.c: Likewise.
        * config/a29k/a29k.c: Likewise.
        * config/arc/arc.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/arm/thumb.c: Likewise.
        * config/c4x/c4x.c: Likewise.
        * config/clipper/clipper.c: Likewise.
        * config/convex/convex.c: Likewise.
        * config/fx80/fx80.c: Likewise.
        * config/i860/i860.c: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/m88k/m88k.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/pdp11/pdp11.c: Likewise.
        * config/pyr/pyr.c: Likewise.
        * config/romp/romp.c: Likewise.
        * config/sh/sh.c: Likewise.
        * config/tahoe/tahoe.c: Likewise.
        * config/vax/vax.c: Likewise.
        * config/we32k/we32k.c: Likewise.
        * config/sparc/sparc.c: Include "function.h".
        (mem_min_alignment): Test current_function rather than
        regno_pointer_align.
        * config/pa/pa.c: Likewise.
        (compute_frame_size): Delete declaration of
        current_function_outgoing_args_size.
        * config/arc/arc.h (current_function_varargs): Delete declaration.
        * config/elxsi/elxsi.h (current_function_calls_alloca): Delete
        declaration.
        * config/i370/i370.h (current_function_outgoing_args_size): Delete
        declaration.
        * config/i386/i386.h (FINALIZE_PIC): Delete declaration of
        current_function_uses_pic_offset_table.
        * config/m68k/a-ux.h (FUNCTION_EXTRA_EPILOGUE): Delete declaration
        of current_function_returns_pointer.
        * config/m68k/altos3068.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m68k/m68kv4.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m68k/mot3300.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m68k/pbb.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m68k/tower-as.h (FUNCTION_EXTRA_EPILOGUE): Likewise.
        * config/m88k/m88k.c: Include "function.h"
        (call_used_regs, current_function_pretend_args_size,
        current_function_outgoing_args_size, frame_pointer_needed): Delete
        declarations.
        * config/m88k/m88k.h (current_function_pretend_args_size): Delete
        declaration.
        * config/mips/mips.h (current_function_calls_alloca): Delete
        declaration.
        * config/mn10200/mn10200.h (current_function_needs_context,
        rtx_equal_function_value_matters): Delete declarations.
        * config/ns32k/ns32k (current_function_uses_pic_offset_table,
        flag_pic): Delete declarations.
        * config/pa/pa.h (current_function_pretend_args_size,
        current_function_decl): Delete declarations.
        * config/pa/som.h (current_function_varargs): Delete declaration.
        * config/pdp11/pdp11.h (current_function_pretend_args_size): Delete
        declaration.
        * config/pyr/pyr.h (current_function_pretend_args_size,
        current_function_args_size, current_function_calls_alloca): Delete
        declarations.
        * config/sh/sh.h (current_function_varargs): Delete declaration.
        * config/sparc/sparc.h (current_function_outgoing_args_size,
        current_function_calls_alloca, current_function_decl): Delete
        declarations.
        * config/spur/spur.h (current_function_pretend_args_size,
        current_function_calls_alloca): Delete declarations.
        * config/v850/v850.c (current_function_outgoing_args_size): Delete
        declaration.
        * config/vax/vms.h (current_function_name): Delete declaration.
        * gcse.c: Include "function.h".
        (current_function_name, current_function_calls_setjmp): Delete
        declarations.
        * haifa-sched.c: Include "function.h".
        (forced_labels): Delete declaration.
        * jump.c: Likewise.
        * reg-stack.c: Likewise.
        * reload1.c: Likewise.
        * genemit.c (main): Make generated file include function.h.
        * genoutput.c (output_prologue): Likewise.

        * builtins.c (saveregs_value, apply_args_value): Delete variables.
        * emit-rtl.c (reg_rtx_no, first_label_num, first_insn, last_insn,
        sequence_rtl_expr, cur_insn_uid, last_linenum, last_filename,
        regno_pointer_flag, regno_pointer_flag_length, regno_pointer_align,
        regno_reg_rtx, sequence_stack): Delete variables.  Add accessor
        macros for some of them.
        (emit_filename, emit_lineno): Delete declarations.
        (gen_reg_rtx): Use memset/memcpy instead of bzero/bcopy.  Access
        regno_pointer_* variables through current_function.
        (gen_inline_header_rtx): Delete function.
        (save_emit_status): Delete function.
        (set_new_last_label_num): New function.
        (clear_emit_caches): New function.
        (restore_emit_status): Just clear last_labelnum and call
        clear_emit_caches.
        (get_last_insn_anywhere): Variable sequence_stack is now accessed
        through macro seq_stack.
        (add_insn_after): Likewise.
        (add_insn_before): Likewise.
        (remove_insn): Likewise.
        (pop_topmost_sequence): Likewise.
        (in_sequence_p): Likewise.
        (start_sequence_for_rtl_expr): Likewise.
        (start_sequence): Likewise, and likewise for
        sequence_rtl_expr/seq_rtl_expr.
        (push_topmost_sequence): Likewise.
        (end_sequence): Likewise.
        (init_virtual_regs): Now takes a "struct emit_status *" argument.
        All callers changed.  Store into that pointer instead of globals.
        (init_emit): Allocate emit elt of current_function.
        Changes for sequence_rtl_expr/sequence_stack renaming.
        Call clear_emit_caches instead of doing it in-line.
        Access regno_pointer_* variables through current_function.
        (init_emit_once) Don't clear sequence_stack.

        * expr.c (pending_stack_adjust, inhibit_defer_pop, pending_chain):
        Delete variables.
        (arg_pointer_save_area): Delete declaration.
        (finish_expr_for_function): Renamed from init_queue; no longer static.
        (init_expr): Don't call init_queue.
        (save_expr_status, restore_expr_status): Delete functions.
        (expand_expr): Changes to reflect new layout of struct function.
        Don't access current_function_check_memory_usage when current_function
        is 0.
        * expr.h (forced_labels, save_expr_regs, saveregs_value,
        apply_args_value, current_function_calls_alloca, inhibit_defer_pop,
        current_function_outgoing_args_size, current_function_arg_offset_rtx,
        current_function_uses_const_pool, function_call_count,
        current_function_uses_pic_offset_table, nonlocal_labels,
        current_function_internal_arg_pointer, nonlocal_goto_stack_level,
        current_function_check_memory_usage, nonlocal_goto_handler_slots,
        pending_stack_adjust, target_temp_slot_level, temp_slot_level): Delete
        declarations.
        (finish_expr_for_function): Declare.
        * flags.h (current_function_has_nonlocal_label,
        current_function_has_nonlocal_goto, current_function_is_thunk,
        current_function_has_computed_jump): Delete declarations.
        * flow.c (forced_labels): Delete declaration.
        * function.c (current_function_pops_args,
        current_function_returns_struct, current_function_returns_pcc_struct,
        current_function_needs_context, current_function_calls_setjmp,
        current_function_calls_longjmp, current_function_has_nonlocal_label,
        current_function_has_nonlocal_goto, current_function_is_thunk,
        current_function_has_computed_jump, current_function_calls_alloca,
        current_function_contains_functions, current_function_returns_pointer,
        current_function_epilogue_delay_list, current_function_args_size,
        current_function_pretend_args_size, current_function_arg_offset_rtx,
        current_function_outgoing_args_size, current_function_varargs,
        current_function_stdarg, current_function_args_info, cleanup_label,
        current_function_name, current_function_uses_const_pool,
        current_function_instrument_entry_exit, current_function_return_rtx,
        current_function_uses_pic_offset_table, nonlocal_labels,
        current_function_internal_arg_pointer, current_function_cannot_inline,
        current_function_check_memory_usage, function_call_count,
        nonlocal_goto_handler_slots, nonlocal_goto_handler_labels,
        nonlocal_goto_stack_level, return_label, save_expr_regs,
        stack_slot_list, rtl_expr_chain, tail_recursion_label, temp_slots,
        tail_recursion_reentry, arg_pointer_save_area, frame_offset,
        context_display, trampoline_list, parm_birth_insn, invalid_stack_slot,
        last_parm_insn, max_parm_reg, parm_reg_stack_loc, sequence_rtl_expr,
        temp_slot_level, var_temp_slot_level, target_temp_slot_level):
        Delete variables.
        (push_function_context_to): Don't save them.  Don't call
        save_storage_status, save_emit_status or save_expr_status.
        (pop_function_context_from): Don't restore them.  Don't call
        restore_storage_status or restore_expr_status.
        (get_func_frame_size): New function.
        (get_frame_size): Use it.
        (assign_outer_stack_local): Reflect some member name changes in struct
        function.
        (put_reg_into_stack): Likewise.
        (assign_stack_temp_for_type): sequence_rtl_expr was renamed to
        seq_rtl_expr.
        (fixup_var_refs): Likewise.
        (fix_lexical_addr): Likewise.
        (trampoline_address): Likewise.
        (prepare_function_start): Clear field inlinable of current_function.
        (init_function_for_compilation): New function.
        (expand_dummy_function_end): New function.
        (expand_function_end): Call finish_expr_for_function.
        * function.h (struct emit_status): New; fields moved here from struct
        function and from global variables.  Add accessor macros for some of
        the fields.
        (struct expr_status): Likewise.
        (REGNO_POINTER_ALIGN, REGNO_POINTER_FLAG): Moved here from regs.h.
        (struct function): Add fields expr and emit, inlinable, inl_emit,
        original_arg_vector, original_decl_initial, inl_last_parm_insn,
        inl_max_label_num.  Add many comments.
        Add accessor macros for all elts of struct function that no longer
        have a global variable.
        (cleanup_label, return_label, frame_offset, tail_recursion_label,
        tail_recursion_reentry, arg_pointer_save_area, rtl_expr_chain,
        stack_slot_list): Delete declarations.
        (get_func_frame_size): Declare.
        (save_expr_status, restore_expr_status, save_emit_status,
        save_storage_status, restore_storage_status): Delete declarations.
        (init_virtual_regs): Declare.
        * output.h (current_function_pops_args,
        current_function_returns_struct, current_function_returns_pcc_struct,
        current_function_needs_context, current_function_calls_setjmp,
        current_function_calls_longjmp, current_function_calls_alloca,
        current_function_has_nonlocal_label, current_function_varargs,
        current_function_has_computed_jump, current_function_returns_pointer,
        current_function_contains_functions, current_function_args_size,
        current_function_pretend_args_size, current_function_stdarg,
        current_function_outgoing_args_size, current_function_args_info,
        current_function_name, current_function_return_rtx,
        current_function_epilogue_delay_list,
        current_function_uses_const_pool, current_function_cannot_inline):
        Delete declarations.
        * regs.h (reg_rtx_no, regno_pointer_flag, regno_pointer_flag_length,
        regno_reg_rtx): Delete declaration.
        (REGNO_POINTER_FLAG): Delete macro.
        * stmt.c (expand_goto): Changes to reflect that some fields in struct
        function were renamed.
        * stor-layout.c (save_storage_status, restore_storage_status): Delete
        functions.
        * toplev.c: Include "function.h".
        (current_function_decl): Delete declaration.
        (compile_file): Call init_dummy_function_start and
        expand_dummy_function_end around some initializations that need to
        emit rtl.
        (rest_of_compilation): Use DECL_SAVED_INSNS properly.
        Call init_function_for_compilation.
        * unroll.c: Include "function.h"
        (unroll_loop): Access regno_pointer_* variables through
        current_function.

        * tree.h (struct tree_decl): Add elt f to saved_insns member.
        (DECL_SAVED_INSNS): use it.
        (expand_dummy_function_end): Declare.
        (init_function_for_compilation): Declare.
        * calls.c (calls_function_1): Change use of DECL_SAVED_INSNS now
        that it's no longer an INLINE_HEADER.
        (expand_call): Likewise.
        * integrate.c (finish_inline): Delete function.
        (max_parm_reg, parm_reg_stack_loc): Delete declarations.
        (initialize_for_inline): Delete min_labelno, max_labelno and max_reg
        args.  Don't generate an INLINE_HEADER rtx, just return the arg
        vector.  All callers changed.
        (save_for_inline_copying):  Create a duplicate struct emit_status to
        hold the emit state for compiling the current function.  Use this and
        the other new fields in struct function that are for integration
        instead of an INLINE_HEADER.
        Use memcpy instead of bcopy.
        Store the current struct function in DECL_SAVED_INSNS of fndecl.
        (save_for_inline_nocopy): Similar changes, except no new emit_status
        is needed here.
        (expand_inline_function): Get information from function structure,
        not from an inline header rtx.
        (output_inline_function): Lose code to extract the necessary
        information from an inline header; simply put back the function
        structure into current_function.  Clear its inlinable elt.
        * rtl.def (INLINE_HEADER): Delete.
        * rtl.h: Delete all accessors for an INLINE_HEADER.
        (gen_inline_header_rtx): Delete declaration.
        (regno_reg_rtx, regno_pointer_align, nonlocal_goto_handler_labels):
        Delete declarations.
        (REGNO_POINTER_ALIGN): Delete.
        (clear_emit_caches): Declare.
        (set_new_last_label_num): Declare.

Mon Aug  9 01:52:24 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * print-tree.c (print_node): Print base for OFFSET_TYPEs.

        * except.c (expand_eh_region_start_for_decl): Always start a new block.
        * stmt.c (is_eh_region): Make sure current_function is present, too.

Mon Aug  9 01:15:24 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.h (HARD_REGNO_MODE_OK): Correctly handle FPregs, even when
        for 64bit PA targets.

        * pa.h (SELECT_SECTION): Define.
        * som.h (SELECT_SECTION): Delete.

Sun Aug  8 15:13:20 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * alias.c (init_alias_analysis): Wrap call to
        `prologue_epilogue_contains' within HAVE_prologue||HAVE_epilogue.

1999-08-07  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/inclhack.def(irix_asm_apostrophe):  IRIX 5.2's
        <sys/asm.h> contains an asm comment with an apostrophe
        * fixinc/inclhack.sh:  regen
        * fixinc/fixincl.x:  regen

Sat Aug  7 19:37:07 1999  Richard Henderson  <rth@cygnus.com>

        * function.c (init_function_start): Clear prologue & epilogue.
        (prologue_epilogue_contains): New function.
        * alias.c (init_alias_analysis): Use it.
        * rtl.h (prologue_epilogue_contains): Declare it.

Sat Aug  7 19:32:16 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (onlyjump_p): New function.
        * rtl.h: Declare it.
        * flow.c (delete_unreachable_blocks): Use onlyjump_p instead
        of condjump_p in calling tidy_fallthru_edge and merge_blocks.

Sat Aug  7 17:09:36 1999  Richard Henderson  <rth@cygnus.com>

        * global.c (build_insn_chain): Use EXECUTE_IF_SET_IN_REG_SET
        to invert loops.  Simplify block scanning.

Sat Aug  7 02:11:13 1999  Bernd Schmidt <bernds@cygnus.co.uk>

        * gcse.c (hash_scan_set): Treat SYMBOL_REFs like CONST_INTs.
        (cprop_insn): Treat SYMBOL_REFs like CONST_INTs.

1999-08-07  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * config/sparc/liteelf.h: New file to support sparclite-elf target
        * config/sparc/t-sp86x: New file to support sparc86x targets
        * config/sparc/sp86x-aout.h: New file to support sparc86x-aout target
        * config/sparc/sp86x-elf.h: New file to support sparc86x-elf target
        * configure.in: Support above target triplets
        * configure: Regenerated

Sat Aug  7 01:39:27 1999  Philippe De Muyter  <phdm@macqel.be>

        * fixinc/server.c (server_setup): Do not prefix function used as
        parameter with `&'.

Sat Aug  7 00:21:20 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (movhi and movqi patterns): Correct predicate for !BWX.
        Remove fp reg alternatives.

Sat Aug  7 00:06:54 1999  Jeffrey A Law  (law@cygnus.com)

        * Makefiin (TAROUTOPTS): Kill.
        (install-headers-tar): Use "xpf" for tar headerfile extraction
        * i370/x-oe (TAROUTOPTS): Delete.
        * m68k/x-apollo68 (TAROUTOPTS): Delete.
        * m68k/x-hp320 (TAROUTOPTS): Delete.
        * m68k/x-hp320g (TAROUTOPTS): Delete.
        * gcc.texi: Update bug reporting text.

1999-08-6 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * reg-stack.c (change_stack) Fixed problem with negative array index.

Fri Aug  6 23:08:44 1999  Jeffrey A Law  (law@cygnus.com)

        * extend.texi, install.texi: Fix spelling mistakes.

        * Makefile.in (PREMADE_ATTRTAB_MD, PREMADE_ATTRTAB): Delete.
        (s-attrtab); No longer try to use pre-made insn-attrtab file.
        * mips/t-bsd: Delete references to obsolete PREMADE_ATTRTAB and
        PREMADE_ATTRTAB_MD.
        * mips/t-ecoff: Likewise.
        * mips/t-elf: Likewise.
        * mips/t-mips: Likewise.
        * mips/t-osfrose: Likewise.
        * mips/t-r3900: Likewise.
        * mips/t-svr3: Likewise.
        * mips/t-svr4: Likewise.
        * mips/t-ultrix: Likewise.

        * gcc.texi: Document recommend means to provide software floating
        point libraries in libgcc.a

1999-08-06  Jason Merrill  <jason@yorick.cygnus.com>

        * c-lex.c (yylex): We can have a number with no digits.

Fri Aug  6 16:53:55 EDT 1999  John Wehle  (john@feith.com)

        * jump.c (delete_prior_computation): New function, broken
        out of delete_computation.  Check for side effects with
        side_effects_p instead of FIND_REG_INC_NOTE.  Handle
        multi-word hard registers.
        (delete_computation): Use it.  Check for side effects with
        side_effects_p instead of FIND_REG_INC_NOTE.  Synthesize a
        missing REG_DEAD note for a register which is both set and
        used by an insn.

Fri Aug  6 11:05:29 1999  Jeffrey A Law  (law@cygnus.com)

        * elf.h (TEXT_SPACE_P, FUNCTION_NAME_P): Delete.
        (ASM_GLOBALIZE_LABEL, ASM_OUTPUT_INT, ASM_OUTPUT_DOUBLE_INT): Likewise.
        (ASM_FILE_START): Import _mcount with the right type.
        (ASM_DECLARE_FUNCTION_NAME): Define.
        (ASM_OUTPUT_EXTERNAL, ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
        * pa.c (output_function_prologue): Always emit the function's label
        here.
        * pa.h (TEXT_SPACE_P): Define.
        (FUNCTION_NAME_P, ENCODE_SECTION_INFO, STRIP_NAME_ENCODING): Likewise.
        (ASM_OUTPUT_INT, ASM_OUTPUT_DOUBLE_INT, ASM_GLOBALIZE_LABEL): Likewise.
        * som.h (TEXT_SPACE_P): Delete.
        (FUNCTION_NAME_P, ENCODE_SECTION_INFO, STRIP_NAME_ENCODING): Likewise.
        (ASM_GLOBALIZE_LABEL, ASM_OUTPUT_INT): Likewise.

Thu Aug  5 19:29:39 1999  Jim Wilson  <wilson@cygnus.com>

        * expr.c (emit_group_load): Allow src to be a CONCAT.

Thu Aug  5 22:27:15 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * config/sh/lib1funcs.asm (___movstrSI0): Change or r0,r0,r0 to nop.
        (___mulsi3): Use '!' comment character.

Thu Aug  5 13:34:14 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (maybe_fix_stack_asms): Also declare P as "const char *".

Thu Aug  5 02:40:42 1999  Jeffrey A Law  (law@cygnus.com)

        * gcc.c: Update URLs and mail addresses.
        * gcc.texi: Likewise.

Thu Aug  5 01:14:13 1999  Daniel Jacobowitz <drow@false.org>

        * rs6000.c (current_file_function_operand): Return zero for
        weak functions.
        (rs6000_encode_section_info): Do not set SYMBOL_REF_FLAG for
        weak symbols.
        * rs6000.h (ENCODE_SECTION_NIFO): Do not set SYMBOL_REF_FLAG
        for weak symbols.

Thu Aug  5 00:56:30 1999  Geoffrey Keating  <geoffk@cygnus.com>

        * rs6000.c (rs6000_stack_info): For ABI_V4/ABI_SOLARIS -fpic, always
        allocate space in the stack frame for the PIC register.

Thu Aug  5 00:20:47 1999  Jeffrey A Law  (law@cygnus.com)

        * m68k.md (xordi3, anddi3): These patterns are not available on
        the coldfire.

Wed Aug  4 23:39:20 1999  Mark Mitchell  <mark@codesourcery.com>

        * real.c (GET_REAL): Don't violate ANSI/ISO aliasing rules.
        (PUT_REAL): Likewise.

Wed Aug  4 20:45:04 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * final.c (shorten_branches): Don't add an alignment for loops
        that have no label inside.

Wed Aug  4 16:39:24 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_memcmp, expand_builtin_strcmp): Wrap
        prototypes in macro HAVE_cmpstrsi.

        * cpplib.c (cpp_get_token): Remove unused label `op3'.

        * emit-rtl.c (operand_subword): Remove unused variable
        `bits_per_word'.

        * rtl.c (shallow_copy_rtx): Remove unused variable `format_ptr'.

        * tree.c (chainon): Wrap variable `t2' in macro ENABLE_CHECKING.

Wed Aug  4 13:29:23 1999  Zack Weinberg  <zack@bitmover.com>

        * cpphash.c (macroexpand): Delete leading whitespace when arg
        is concatenated before.
        (unsafe_chars): Correct test for whether + and - can extend a
        token.

        * cppinit.c (cpp_start_read): Do dependencies for
        -include/-imacros files also.

        * cpplib.c (cpp_scan_buffer): In no-output mode, don't bother
        tokenizing non-directive lines.
        (cpp_expand_to_buffer): Temporarily disable no-output mode.
        * cppmain.c: In no-output mode, just call cpp_scan_buffer for
        the input file.

Wed Aug  4 12:53:44 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * expr.c (expand_expr, case PLUS_EXPR): Fix parallel case, too.

        * c-lex.c: Sync with C++ frontend.
        (linemode): New variable.
        (parse_float): imag, conversion_errno, and type are output only.
        (yylex): Adjust.  Move initial '.' case into main switch.
        Use linemode.
        (handle_generic_pragma): Just deal with tokens.
        (readescape): Use ISXDIGIT and ISGRAPH.
        * c-parse.in: Add END_OF_LINE token.

        * c-lex.c (lang_init): Generalize.
        (nextchar): Remove.  Replace uses with UNGETC.
        (skip_white_space): Handle linemode here.  Optimize for cpplib.
        (skip_white_space_on_line): Remove.
        (extend_token_buffer_to): New fn.
        (extend_token_buffer): Use it.
        (read_line_number, check_newline): Just deal with tokens.
        (token_getch, token_put_back): New fns.
        (yylex): Use them.  More cpplib optimizations.  Simplify.

Wed Aug  4 12:53:44 1999  Michael Tiemann  <tiemann@holodeck.cygnus.com>
                          Jason Merrill  <jason@yorick.cygnus.com>

        * c-lex.c (init_parse): Set cpp_token to CPP_DIRECTIVE.
        (consume_string): Make this smart about USE_CPPLIB.
        (check_newline): Rewrite to be intelligent about USE_CPPLIB.
        (yylex): Rewrite to be intelligent about USE_CPPLIB.
        Also, clean up cases where we redundantly set token_buffer[0].
        (read_line_number): New fn.
        (ignore_escape_flag): New variable.

Wed Aug  4 13:12:17 1999  Jeffrey A Law  (law@cygnus.com)

        * a29k/t-a29kbare: Fix some comments.
        (LIB2FUNCS_EXTRA): Remove fp-bit.c and dp-bit.c
        (FPBIT, DPBIT): Define.
        * a29k/t-vx29k: Likewise.
        * arc/t-arc: Likewise.
        * arm/t-arm-elf: Likewise.
        * arm/t-bare: Likewise.
        * arm/t-pe: Likewise.
        * arm/t-pe-thumb: Likewise.
        * arm/t-semi: Likewise.
        * arm/t-thumb: Likewise.
        * arm/t-thumb-elf: Likewise.
        * arm/t-thumb-linux: Likewise.
        * h8300/t-h8300: Likewise.
        * i960/t-i960: Likewise.
        * i960/t-vxworks960: Likewise.
        * m32r/t-m32r: Likewise.
        * mips/t-ecoff: Likewise.
        * mips/t-elf: Likewise.
        * mips/t-r3900: Likewise.
        * pa/t-pro: Likewise.
        * rs6000/t-aix43: Likewise.
        * rs6000/t-beos: Likewise.
        * rs6000/t-newas: Likewise.
        * rs6000/t-ppccomm: Likewise.
        * rs6000/t-rs6000: Likewise.
        * rs6000/t-winnt: Likewise.
        * rs6000/t-xnewas: Likewise.
        * rs6000/t-xrs6000: Likewise.
        * sh/t-sh: Likewise.
        * sparc/t-elf: Likewise.
        * sparc/t-sparcbare: Likewise.
        * sparc/t-sparclite: Likewise.
        * sparc/t-splet: Likewise.
        * v850/t-v850: Likewise.
        * mn10200/t-mn10200: Fix comments.
        * mn10300/t-mn10300: Likewise.

        * pa.md (divsi3, udivsi3, modsi3, umodsi3 expanders): Clobber a new
        dummy operand.  Allocate a new pseudo for the dummy operand.
        (divsi3, udivsi3, modis3, umodsi3 patterns): Corresponding changes.

        * pa.md (movqi, movhi patterns): Do not expose FP regs to regclass.

Wed Aug  4 11:53:55 1999  Tom Tromey  <tromey@cygnus.com>

        * configure: Rebuilt.
        * configure.in: Removed --enable-java-gc option and JAVAGC subst.

Wed Aug  4 09:06:14 1999  Richard Earnshaw (rearnsha@arm.com)

        * recog.c (preproces_constraints): Zero recog_op_alt before
        processing the constraints.

        * arm.c (typedef minipool_node): Renamed from pool_node.
        (minipool_vector, minipool_size, minipool_vector_label): Similarly.
        (add_minipool_constant): New function.
        (dump_minipool): New function.
        (find_barrier): Remove special case for getting the insn size of
        an insn that references the constant pool.
        (minipool_fixup): New structure.
        (push_minipool_barrier): New function.
        (push_minipool_fix): New function.
        (note_invalid_constants): New function.
        (add_pool_constant, dump_table, fixit, broken_move): Delete.
        (arm_reorg): Rewrite code to fix up the constant pool into a
        series of mini-pools embedded in the insn stream.
        (arm_output_epilogue): New function, made mainly from the body
        of output_func_epilogue.
        (output_func_epilogue): Move insn generation part of epilogue code
        to arm_output_epilogue.
        * arm.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY): Delete.
        * arm.md (pool_range): New attribute.
        (zero_extendqidi2): Add attribute pool_range.
        (zero_extend_hisi_insn, load_extendqisi, extendhisi_insn,
        extendqihi_insn, extendqisi_insn, movdi, movsi_insn, pic_load_addr,
        pic_load_addr_based_insn, movhi_insn_arch4, movhi_insn_littleend,
        movhi_insn_bigend, loadhi_si_bigend, movsf_hard_insn, movsf_soft_insn,
        movdf_hard_insn, movdf_soft_insn, movxf_hard_insn): Likewise.
        (epilogue): New expand.
        (epilogue_insn): New insn.  Call arm_output_epilogue.

        * arm.c (arm_poke_function_name): Undo change of July 17.  Tidy up.
        * arm.h (TARGET_SWITCHES): Add missing doc string for TARGET_DEFAULT.

Mon Aug  2 19:18:44 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * linux.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define.

1999-08-04 Mark Elbrecht <snowball3@bigfoot.com>

        * config/i386/djgpp.h  (BSS_SECTION_ASM_OP): Define.

Wed Aug  4 02:15:32 1999  Richard Henderson <rth@cygnus.com>

        * jump.c (delete_insn): Delete the addr_vec when deleting a tablejump.

Wed Aug  4 01:48:08 1999  Jim Kingdon  <http://developer.redhat.com>

        * global.c: Fix comment.

Wed Aug  4 01:43:01 1999  Ian Lance Taylor  <ian@zembu.com>

        * gcc.c (access_check): New static function.
        (find_a_file): Use it when searching a directory list.
        * collect2.c (find_a_file): Don't accept directories found when
        searching a directory list.

Wed Aug  4 01:40:43 1999  Philippe De Muyter  <phdm@macqel.be>

        * tlink.c (symbol_hash_lookup): Do not prefix functions used as
        function parameters with `&'.
        (file_hash_lookup, demangled_hash_lookup, tlink_init): Ditto.

Wed Aug  4 01:08:44 1999  Jeffrey A Law  (law@cygnus.com)

        * flow.c (delete_unreachable_blocks): Do not call merge_blocks
        or tidy_fallthru_edge if the last insn in the block is not
        an unconditional jump or a simple conditional jump.

Tue Aug  3 20:21:20 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * Makefile.in (c-decl.o): Depends on defaults.h.

Tue Aug  3 14:14:52 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.h (HARD_REGNO_NREGS): FP registers are always 4 bytes wide for
        PA1.1 and above.
        (CLASS_MAX_NREGS): Likewise.

Tue Aug  3 03:51:20 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_insn): Fix dumb thinko in last change.

Tue Aug  3 10:36:13 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * reload1.c (maybe_fix_stack_asms): Declare CONSTRAINTS as
        "const char *".

Mon Aug  2 23:45:45 1999  Hans-Peter Nilsson  <hp@bitrange.com>

        * dwarf2out.c (add_location_or_const_value_attribute): Correct
        test for sizes of passed and declared parameter types.

Tue Aug  3 00:03:41 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixincludes: Fix the return type of bsearch, char* -> void*.

        * fixinc/inclhack.def: Likewise.

Mon Aug  2 18:29:32 1999  Mark Mitchell  <mark@codesourcery.com>

        * invoke.texi (-fdump-translation-unit): New option.

Mon Aug  2 17:54:19 1999  Richard Henderson  <rth@cygnus.com>

        * expr.h (PROMOTE_PROTOTYPES): Move ...
        * defaults.h: ... to here.
        * c-decl.c: Include defaults.h instead of expr.h.
        * c-typeck.c: Include defaults.h.

Mon Aug  2 17:10:24 1999  Mark Mitchell  <mark@codesourcery.com>

        * toplev.h (errorcount): Declare.
        (warningcount): Likewise.
        (sorrycount): Likewise.
        * c-lex.c (errorcount): Don't declare.
        * dwarf2out.c (errorcount): Don't declare.

Mon Aug  2 17:02:08 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * config/libgloss.h: Add a note discouraging use with ELF.
        * configure.in: Don't use libgloss.h for ELF targets.
        Always use_collect2 on a.out targets.

Mon Aug  2 16:27:42 1999  Jim Wilson  <wilson@cygnus.com>

        * combine.c (force_to_mode, case LSHIFTRT): Add goto shiftrt.
        (force_to_mode, case ASHIFTRT): Add shiftrt label.

Tue Aug  3 00:45:02 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): When doing biv->giv conversion, update
        reg note of NEXT->insn.

1999-08-02  Jakub Jelinek  <jj@ultra.linux.cz>

        * real.c (PUT_REAL): Clear unused bytes if long double is IEEE quad.

1999-08-02  Jakub Jelinek  <jj@ultra.linux.cz>

        * c-decl.c (get_parm_info, store_parm_decls): Change all uses of
        PROMOTE_PROTOTYPES, so that it tests it as a C expression.
        Ensure expr.h is included.
        * c-typecheck.c (convert_arguments): Ditto.

        * expr.h: Supply default for PROMOTE_PROTOTYPES (0).

        * config/arc/arc.h: Define PROMOTE_PROTOTYPES to 1.
        * config/convex/convex.h: Ditto.
        * config/dsp16xx/dsp16xx.h: Ditto.
        * config/fx80/fx80.h: Ditto.
        * config/gmicro/gmicro.h: Ditto.
        * config/i370/i370.h: Ditto.
        * config/i386/i386.h: Ditto.
        * config/m32r/m32r.h: Ditto.
        * config/m68k/m68k.h: Ditto.
        * config/m88k/m88k.h: Ditto.
        * config/mips/mips.h: Ditto.
        * config/pa/pa.h: Ditto.
        * config/pyr/pyr.h: Ditto.
        * config/tahoe/tahoe.h: Ditto.
        * config/we32k/we32k.h: Ditto.

        * config/sparc/sparc.h: Define PROMOTE_PROTOTYPES
        based on arch size.

        * config/i1750a/i1750a.h: Define PROMOTE_PROTOTYPES to 0.

        * config/i860/paragon.h: Remove PROMOTE_PROTOTYPES
        from comment.

        * tm.texi: Document new usage of PROMOTE_PROTOTYPES.

1999-08-02  Richard Henderson  <rth@cygnus.com>

        * m32r.c (m32r_setup_incoming_varargs): Use get_varargs_alias_set
        for the register spill block.
        (m32r_va_arg): New.
        * m32r.h (EXPAND_BUILTIN_VA_ARG): New.
        (EXPAND_BUILTIN_SAVEREGS): Delete #if 0 code.

        * m32r.h (INT8_P): Don't short-cut test with (unsigned).
        (INT16_P, CMP_INT16_P, UINT16_P): Likewise.
        (UPPER16_P, UINT24_P, INT32_P, UINT5_P): Likewise.

1999-08-02  Jakub Jelinek  <jj@ultra.linux.cz>

        * config/sparc/linux.h: Define WCHAR_TYPE as "int" and undef
        MAX_WCHAR_TYPE defined in sparc.h.
        * config/sparc/linuxaout.h: Likewise.
        * config/sparc/linux64.h: Likewise.
        Also default to -mvis if CPU is UltraSPARC.

1999-08-02  Jakub Jelinek  <jj@ultra.linux.cz>

        * config/sparc/sparc.h (ASM_DECLARE_REGISTER_GLOBAL): New macro.
        (RTX_OK_FOR_OLO10): Likewise.
        (GO_IF_LEGITIMATE_ADDRESS): If assembler supports offsetable
        %lo(), allow it in addresses...
        (PRINT_OPERAND_ADDRESS): ... and print it appropriately.
        * config/sparc/sparc.md (sethi_di_medlow_embmedany_pic): sethi %lo()
        does not make sense.
        * config/sparc/sparc.c (sparc_hard_reg_printed): New array.
        (sparc_output_scratch_registers): New function.
        (output_function_prologue, sparc_flat_output_function_prologue): Use
        it.
        * varasm.c (make_decl_rtl): Use ASM_DECLARE_REGISTER_GLOBAL if
        defined.
        * tm.texi (ASM_DECLARE_REGISTER_GLOBAL): Document it.
        * configure.in: Add check for .register pseudo-op support in as and
        check for offsetable %lo().
        * acconfig.h: Add templates for the above checks.
        * configure: Regenerate.

1999-08-02  Richard Henderson  <rth@cygnus.com>

        * sparc/linux64.h (TARGET_DEFAULT): Remove MASK_APP_REGS.
        * sparc/sol2-sld-64.h (TARGET_DEFAULT): Likewise.
        * sparc/sol2.h (TARGET_DEFAULT): Likewise.

Mon Aug  2 23:46:45 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): When doing biv->giv conversion, fix up
        reg_biv_class.

1999-08-02  Jakub Jelinek  <jj@ultra.linux.cz>

        * config/float-sparc.h: New file.
        * configure.in: Use float_format=sparc for sparc-*-linux-gnulibc1,
        sparc-*-linux-gnu and sparc64-*-linux*.

1999-08-02  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (rs6000_va_list): Type is an array.
        (rs6000_va_start): Don't doubly adjust for varargs.
        (rs6000_va_arg): Evaluate long long GPR adjustment.

Mon Aug  2 16:15:57 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000/aix43.h (SUBTARGET_SWITCHES): Use -m64 and -m32 instead of
        -maix64 and -maix32.
        (ASM_SPEC, ASM_CPU_SPEC, CPP_SPEC, CPP_CPU_SPEC, LIB_SPEC,
        LINK_SPEC): Change appropriately.
        * rs6000/rs6000.c (short_cint_operand): Use CONST_OK_FOR_LETTER_P.
        (u_short_cint_operand): Likewise.
        * rs6000/rs6000.md (movdi splitters): Add TARGET_POWERPC64 support
        for 64-bit hosts.
        * rs6000/t-aix43 (MULTILIB): Change to -m64.

        * invoke.texi (RS/6000 Submodel): Document 64-bit processor options.

Mon Aug  2 16:15:57 1999  Geoff Keating  <geoffk@cygnus.com>

        * rs6000/rs6000.c (num_insns_constant_wide): Correct
        for type promotion.
        (add_operand): Get test correct for 64-bit HOST_WIDE_INT.
        (non_add_cint_operand): Likewise.
        (logical_operand): Likewise.
        (non_logical_cint_operand): Likewise.
        (print_operand): Correct printf()s for 64-bit HOST_WIDE_INT.
        (print_operand_address): Correct printf() for 64-bit HOST_WIDE_INT.
        (rs6000_select_rtx_section): Suppress warning.
        (small_data_operand): Suppress warning.
        (rs6000_got_register): Suppress warning.
        * rs6000/rs6000.md (andsi3): HOST_WIDE_INT is a signed
        type, so `J' is generally the wrong constraint for a SImode value;
        use `L' instead.
        (andsi3_internal2): Likewise.
        (andsi3_internal3): Likewise.
        (iorsi3_internal1): Likewise.
        (xorsi3_internal1): Likewise.
        (movsi): Likewise.
        (movsf_softfloat): Likewise.
        (scc insns): Likewise.
        (movsi+2): Preserve sign bits of SImode constant.
        (floatsidf2_internal+1): Sign-extend SImode constant correctly.
        (movdf+1): Sign-extend properly.
        (movdi_32+1): Sign-extend properly.
        (scc insns): Sign-extend properly.

        * md.texi (RS/6000 EXTRA_CONSTRAINTS): Update documentation for J,
        K, L, and T.

1999-08-02  Richard Henderson  <rth@cygnus.com>

        * alpha.c (override_options): Move ev6 alpha_tp frobbing out of
        -mcpu parsing code.
        (print_operand): Notice alpha_fptm not alpha_tp for sw completion.
        * alpha.md (all fp insns): Likewise.

1999-08-02  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.h (STRICT_ALIGNMENT): Only define if not
        already defined.

Mon Aug  2 03:38:33 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (legitimize_pic_address): Clarify comments.  Do not call the
        pic_load_label generator directly.
        * pa.md (pic_load_label): Clarify comments.  Remove modes on operands.
        No longer a named pattern.

Mon Aug  2 09:38:10 1999  Nick Clifton  <nickc@cygnus.com>

        * explow.c (force_reg): Call force_operand if X does not
        satisfy general_operand.

Mon Aug  2 01:34:22 1999  Jeffrey A Law  (law@cygnus.com)

        * fix-header.c (main): When testing for CONTINUED, use string
        equality, not pointer equality.

Mon Aug  2 01:27:24 1999  Dan Nicolaescu  <dann@ics.uci.edu>

        * sparc.c (sparc_block_profiler): Use the %g2 register, not %o0.

Sun Aug  1 22:46:42 1999  Jeffrey A Law  (law@cygnus.com)

        * cse.c (cse_insn): Fix loop which deletes insns after a jump
        that has become an unconditional jump.

        * m68k.c (output_function_prologue): Fix typo in CPU32 case.
        (output_function_epilogue): Similarly.

Sun Aug  1 20:14:00 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * tree.h (init_dummy_function_start): Declare.

Sun Aug  1 12:55:31 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * stmt.c (emit_filename, emit_lineno, expr_stmts_for_value,
        last_expr_type, last_expr_value, block_start_count, block_stack,
        stack_block_stack, cond_stack, loop_stack, case_stack, nesting_stack,
        nesting_depth, goto_fixup_chain): Delete global vars; now allocated
        dynamically in stmt elt of struct function for each function.
        (struct nesting): Rename function_call_count elt to n_function_calls,
        target_temp_slot_level to block_target_temp_slot_level.  All users
        changed.
        (struct stmt_status): New structure definition.
        Add many accessor macros for stmt_status elements which previously
        were global variables.
        (init_stmt_for_function): Allocate stmt elt for current_function.
        Reflect that block_start_count was renamed to
        current_block_start_count.
        (save_stmt_status, restore_stmt_status): Delete functions.
        (preserve_subexpressions_p): Don't access loop_stack when outside
        a function.
        (expand_start_bindings): Reflect that block_start_count was renamed to
        current_block_start_count.
        (expand_fixup): Likewise.
        (expand_decl): Don't access block_stack when outside a function.
        (expand_decl_cleanup): Likewise.
        (expand_dcc_cleanup): Likewise.
        (expand_dhc_cleanup): Likewise.
        (expand_anon_union_decl): Likewise.
        (set_file_and_line_for_stmt): New function.
        (in_control_zone_p): New function.

        * function.h (struct function): Add new elt stmt.
        Delete elts block_stack, stack_block_stack, cond_stack, loop_stack,
        case_stack, nesting_stack, nesting_depth, block_start_count,
        last_expr_type, last_expr_value, expr_stmts_for_value, emit_filename,
        emit_lineno, goto_fixup_chain.
        (save_eh_status, restore_eh_status, save_stmt_status,
        restore_stmt_status): Delete declarations.
        * function.c (push_function_context_to): Don't call save_stmt_status.
        (pop_function_context_to): Don't call restore_stmt_status.
        * tree.h (in_control_zone_p): Declare.
        * rtl.h (set_file_and_line_for_stmt): Declare.

        * emit-rtl.c (emit_line_note): Don't set emit_filename/emit_lineno;
        call set_file_and_line_for_stmt.

Thu Jul 31 12:34:45 1999  Joe Buck  <jbuck@synopsys.com>

        * gcc.texi: Use terms "GNU Compiler Collection" and "GCC".
        Also update copyright.

Sat Jul 31 11:10:07 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-pragma.c: Don't include "except.h".
        * emit-rtl.c: Likewise.
        * stor-layout.c: Likewise.
        * tree.c: Likewise.
        * varasm.c: Likewise.

        * flow.c: Include "function.h".
        * tree.h (init_dummy_function_start): Declare new function.

        * except.h (struct eh_status): New structure.
        (struct label_node, struct eh_entry): Declare even if tree.h hasn't
        been included.
        (eh_return_stub_label, ehstack, catchstack, ehqueue,
        catch_clauses, false_label_stack, caught_return_label_stack,
        protect_list, current_function_ehc): Add accessor macros for the
        corresponding fields in current_function->eh; delete declarations
        for all items that used to be declared here.
        * except.c (eh_return_stub_label, ehstack, catchstack, ehqueue,
        catch_clauses, false_label_stack, caught_return_label_stack,
        protect_list, current_function_ehc): Delete variables.
        (init_eh_for_function): Allocate current_function->eh.
        (save_eh_status, restore_eh_status): Delete functions.

        * function.h (struct function): Add fields next_global and eh.
        Delete all exception handling related fields.
        * function.c (current_function): New variable.
        (all_functions): New variable.
        (push_function_context_to): Don't allocate a struct function,
        use current_function instead.  Call init_dummy_function_start when
        outside a function.  Clear current_function before returning.
        (pop_function_context_from): Restore current_function.
        Don't free the restored struct function.
        (prepare_function_start): New function.
        (init_dummy_function_start): New function.
        (init_function_start): Break out some code into prepare_function_start
        and call it here.

        * stmt.c (save_stmt_status): Don't call save_eh_status.
        (restore_stmt_status): Don't call restore_eh_status.

        * Makefile.in: Update dependencies.

Sat Jul 31 04:10:01 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (compute_frame_size): Use STARTINg_FRAME_OFFSET instead
        of depending on a magic constant value.  Update comments.
        (hppa_expand_prologue): Similarly.

        * pa.md (reload_indi, reload_outdi): Allow any register for the
        original reload register.

Fri Jul 30 19:41:35 1999  Jim Wilson  <wilson@cygnus.com>

        * cccp.c (print_help): Change marcos to macros.

1999-07-30  Richard Henderson  <rth@cygnus.com>

        * c-typeck.c (initializer_constant_valid_p): Move ...
        * c-common.c (initializer_constant_valid_p): ... here.  Use
        FOO_TYPE_P instead of tests against TREE_CODE.  Allow subtraction
        of label addresses.
        * c-common.h (initializer_constant_valid_p): Declare.
        * c-tree.h (initializer_constant_valid_p): Remove.

Fri Jul 30 16:33:42 1999  Mathias Froehlich  <frohlich@na.uni-tuebingen.de>

        * config/i386/sol2-c1.asm: Align the stack.
        * config/i386/sol2-gc1.asm: Likewise.

1999-07-30  Vladimir Makarov  <vmakarov@loony.cygnus.com>

        * config/sparc/sparc.h (ASM_CPU32_DEFAULT_SPEC): Change -Av8 onto
        -Asparclite for sparc86x.
        (CPP_CPU32_DEFAULT_SPEC, CPP_CPU_SPEC): Remove -D__sparc_v8__ for
        sparc86x.
        (ASM_CPU_SPEC): Use -Asparclite for sparc86x.

Fri Jul 30 14:53:56 1999  Jakub Jelinek  <jj@ultra.linux.cz>

        * config/sparc/linux64.h (CC1_SPEC): Preserve CPU specified by
        the user if using the non-default arch size in BI_ARCH configuration.
        * config/sparc/sol2-sld-64.h (CC1_SPEC): Ditto.

        * config/sparc/sparc.md (cmp_mul_set, cmp_udiv_cc_set):
        Fix patterns so that they actually match.
        (cmp_sdiv_cc_set): Ditto, also don't require g0 to be zero.
        (mulsidi3_sp64, const_mulsidi3_sp64): New patterns.
        (const_mulsidi3_sp32): Renamed from const_mulsidi3, only on
        TARGET_HARD_MUL32.
        (mulsidi3): Reflect this in the expand.
        (smulsi3_highpart): Only on TARGET_ARCH32.
        (umulsidi3_sp64, const_umulsidi3_sp64): New patterns.
        (const_umulsidi3_sp32): Renamed from const_umulsidi3.
        (umulsidi3): Reflect this in the expand.
        (umulsi3_highpart): Only on TARGET_ARCH32.
        (divsi3_sp32): Renamed from divsi3, only on TARGET_ARCH32,
        don't require g0 to be zero.
        (udivsi3_sp32): Renamed from udivsi3, only on TARGET_ARCH32.
        ({,u}divsi3): New expands.
        ({,u}divsi3_sp64): New patterns.
        (after lshrdi3_v8plus): Four new patterns to help combiner
        optimizing nested mixed mode shifts.

        * config/sparc/sparc.c (sparc_override_options): Use deprecated
        v8 instructions if optimizing for UltraSPARC I, II, IIi, as it
        speed things up. Don't use them by default on plain v9 in 64bit
        mode, according to what SPAMv9 sais.

        * config/sparc/sparc.h: Fix comments, e.g. Linux already preserves
        top 32 bits of %[og][0-7] in signal handlers.
        Also, TARGET_HARD_MUL32 now is only true for TARGET_ARCH32.

Fri Jul 30 03:00:41 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (zvdep_imm32): Renamed from zvdep_imm.
        (ashlsi3): Corresponding changes.

        * pa.c (compute_zdepwi_operands): Renamed from compute_zdepi_operands.

Thu Jul 29 18:37:13 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.h (FIRST_PARM_CALLER_OFFSET): Delete.

Thu Jul 29 19:01:58 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * arm.h (Hint): Delete macro.
        Substitute HOST_WIDE_INT for Hint in some prototypes.
        * arm.c: Substitute HOST_WIDE_INT for Hint in one prototype.

Thu Jul 29 09:21:42 1999  Nick Clifton  <nickc@cygnus.com>

        * builtins.c (expand_builtin_setjmp): Use force_operand to
        make sure that the buffer address is in a suitable form to be
        passed to force_reg.

Wed Jul 28 12:50:48 1999  Geoff Keating  <geoffk@cygnus.com>

        * config/mips/mips.c: system.h handles MIN and MAX, don't undefine
        them here.

Wed Jul 28 13:18:35 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (indirect_jump): Remove mode from match_operand.  Verify
        proper mode in the condition string.
        (icacheflush, dcacheflush): Remove modes from match_operands.

        * pa.c (emit_move_sequence): Always convert scratch_reg to the
        proper mode before using it.

        * pa.md (adddi3, subdi3): Turn into a define_expand/define_insn
        pair.

        * pa.c (store_reg): Do not call add_high_const generator directly.
        (load_reg, set_reg_plus_d): Likewise.
        * pa.md (add_high_const): No longer a named pattern.

        * pa.c (legitimize_address): Consistently use Pmode rather than
        SImode.  Do not call gen_pic2_highpart directly anymore.
        * pa.md (pic2_highpart): No longer a named pattern.
        (pic2_lo_sum): Similarly.  Reformat to make more readable.

        * pa.md (call, call_value): Use "word_mode" instead of "SImode" as
        needed.

        * README: Update.

Wed Jul 28 11:28:04 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * builtins.c (expand_builtin): Typo in call to expand_builtin_ffs.

Wed Jul 28 11:23:48 1999  Richard Henderson  <rth@cygnus.com>

        * pa.c (hppa_builtin_saveregs):  Use get_varargs_alias_set
        and tag the spill mems.
        (hppa_va_start): New.
        (hppa_va_arg): New.
        * pa.h (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.

Wed Jul 28 11:22:21 1999  Richard Henderson  <rth@cygnus.com>

        * mn10300.c (mn10300_builtin_saveregs): Use get_varargs_alias_set
        and tag the spill mems.
        (mn10300_va_start): New.
        (mn10300_va_arg): New.
        * mn10300.h (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.

Wed Jul 28 11:20:19 1999  Richard Henderson  <rth@cygnus.com>

        * mn10200.c (mn10200_va_arg): New.
        * mn10200.h (EXPAND_BUILTIN_VA_ARG): New.

Wed Jul 28 11:19:06 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c (std_expand_builtin_va_arg): Use int_size_in_bytes
        rather than play with TREE_INT_CST_LOW.

1999-07-27  Philip Blundell  <pb@nexus.co.uk>

        * config/arm/telf.h: Include dbxelf.h.
        (CPP_PREDEFINES): Only define if not already defined.
        (ASM_IDENTIFY_GCC): Likewise.
        (SUBTARGET_EXTRA_SECTIONS): Likewise.
        (SUBTARGET_EXTRA_SECTION_FUNCTIONS): Likewise.
        * config/arm/thumb.h (LINK_SPEC): Only define if not already
        defined.
        (DBX_DEBUGGING_INFO): Don't define.
        * config/arm/linux-telf.h: New file.
        * config/arm/linux-tgas.h: New file.
        * config/arm/t-thumb-linux: New file.
        * config/arm/uclinux-elf.h: New file.
        * config/arm/uclinux-telf.h: New file.
        * configure.in (arm-*-uclinux, thumb-*-linux-gnu,
        thumb-*-uclinux): New targets.
        * configure: Regenerate.

Tue Jul 27 23:20:21 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.md (post_store, pre_load): New expanders.
        (post_stwm, pre_ldwm): Renamed to post_stw and pre_ldw respectively.
        (post_ldwm, pre_stwm): Make these unnamed patterns since we never
        need to directly generate RTL for them.
        * pa.c (hppa_expand_prologue, hppa_expand_epilogue): Corresponding
        changes.

Tue Jul 27 16:05:52 1999  David Edelsohn  <edelsohn@gnu.org>

        * aix43.h (ASM_CPU_SPEC, CPP_CPU_SPEC): Add rs64a and PPC630.
        * rs6000.c (processor_target_table): Add powerpc64, rs64a, and PPC630.
        (rs6000_cpu): Choose between 32-bit and 64-bit default processors.
        (secndary_reload_class): Make TARGET_ELF conditional compile.
        (print_operand_address): Similar.
        (output_toc): Print all values as hex.
        (get_issue_rate): Rearrange and add RS64A and PPC630.
        * rs6000.h (processor_type): Add RS64A and PPC630.
        (PROCESSOR_POWERPC64): New.
        (PROMOTE_MODE): Use word_mode.
        (RTX_COSTS): Add RS64A and PPC630.
        * rs6000.md (scheduling information): Add lmul and ldiv
        representing 64-bit integer multiply and divide.  Add rs64a and
        PPC630 information.
        (ashldi3): Add support for "rldic" instruction.
        * sysv4.h (PROCESSOR_DEFAULT): Change to PROCESSOR_750.

Tue Jul 27 15:31:53 1999  Vladimir Makarov  <vmakarov@toad.to.cygnus.com>

        * config/sparc/sparc.c (sparc_override_options): Enable SPARCLITE
        instead of V8 for sparclite86x in cpu_table.

Tue Jul 27 17:49:42 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/coff.h (ASM_FILE_START): If generating SDB output, call
        output_file_directive.

Tue Jul 27 03:15:33 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * expr.c (expand_expr, case PLUS_EXPR): Get the mode from the
        tree for op1, not the rtl.

Tue Jul 27 00:18:34 1999  Richard Henderson  <rth@cygnus.com>

        * m88k.c (m88k_builtin_saveregs): Break out the constructor code
        to m88k_va_start, leaving only the register spill.
        (m88k_build_va_list): New.
        (m88k_va_start): New.
        (m88k_va_arg): New.
        * m88k.h (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.

Mon Jul 26 19:07:11 1999  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_expand_builtin_saveregs):
        Rename from expand_builtin_saveregs.
        * config/rs6000/rs6000.h (EXPAND_BUILTIN_SAVEREGS): Change caller.

Mon Jul 26 22:52:47 1999  Richard Henderson  <rth@cygnus.com>

        * i960.c (i960_setup_incoming_varargs): Use get_varargs_alias_set
        for the register spill block.
        (i960_build_va_list): New.
        (i960_va_start): New.
        (i960_va_arg): New.
        * i960.h (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.
        * i960.md (store_multiple): Use change_address on individul mems.

Mon Jul 26 22:43:12 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c (stabilize_va_list): Don't INDIRECT_REF through
        an ARRAY_TYPE.
        (std_expand_builtin_va_start): Back out one word if !stdarg_p.
        (expand_builtin_va_end): Evaluate arg for side effects.
        * c-common.c (c_common_nodes_and_builtins): Construct a
        va_list_arg_type_node to handle array decomposition to pointer.

Mon Jul 26 18:51:34 1999  Richard Henderson  <rth@cygnus.com>

        * except.c (st_dynamic_cleanup): Use force_operand on the
        buffer's address.

Mon Jul 26 16:43:26 1999  Richard Henderson  <rth@cygnus.com>

        * c4x.h (EXPAND_BUILTIN_VA_ARG): New.
        * c4x.c (c4x_va_arg): New.

Mon Jul 26 12:30:09 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * cpplib.c (cpp_get_token): Don't return a CPP_POP if the buffer
        has manual_pop set.

1999-07-26  Nathan Sidwell  <nathan@acm.org>

        * eh-common.h (__eh_matcher): Prototype correctly.

Mon Jul 26 17:24:51 1999  Philip Blundell  <pb@nexus.co.uk>

        * config/arm/thumb.h (THUMB_FLAG_SINGLE_PIC_BASE): Define.
        (TARGET_SINGLE_PIC_BASE): Likewise.
        (GOT_PCREL, NEED_GOT_RELOC, NEED_PLT_RELOC): Provide default
        definitions.
        (TARGET_CALLEE_INTERWORKING): Fix typo in comment.
        (TARGET_SWITCHES): Add -m{no-}single-pic-base.
        (TARGET_OPTIONS): Add -mpic-register=N.
        (OUTPUT_INT_ADDR_CONST): New macro.
        (INDEX_REGISTER_RTX_P, PIC_OFFSET_TABLE_REGNUM, FINALIZE_PIC,
        LEGITIMATE_PIC_OPERAND_P): Likewise.
        (LEGITIMIZE_ADDRESS, GOT_IF_LEGITIMATE_ADDRESS): Support PIC.
        (ASM_OUTPUT_INT): Use OUTPUT_INT_ADDR_CONST rather than calling
        output_addr_const directly.
        (PRINT_OPERAND_PUNCT_VALID_P): Accept `|' for compatibility with
        ARM port.
        (thumb_pic_register, thumb_pic_register_string): Declare.

        * config/arm/thumb.c (symbol_mentioned_p): New function: Imported
        from arm.c.
        (label_mentioned_p): New function: Imported from arm.c.
        (legitimize_pic_address): New function: Imported from arm.c.
        (is_pic):New function: Imported from arm.c.
        (thumb_finalize_pic):New function: Imported from arm.c.
        (add_constant): Cope with PIC constants.
        (fixit): Cope with PIC constants.
        (output_return): Do not treat the PIC register as live if
        TARGET_SINGLE_PIC_BASE is true.
        (thumb_function_prologue): Do not treat the PIC register as live if
        TARGET_SINGLE_PIC_BASE is true.
        (thumb_expand_prologue): Do not treat the PIC register as live if
        TARGET_SINGLE_PIC_BASE is true.
        (thumb_unexpand_epilogue): Do not treat the PIC register as live if
        TARGET_SINGLE_PIC_BASE is true.
        (thumb_print_operand): Accept '|'.
        (thumb_override_options): Process PIC options.

        * config/arm/thumb.md (movsi): Support PIC.
        (call_insn): Change "i" constraint to "X".
        (call_value_insn): Likewise.
        (consttable_4, consttable_8, consttable_end): Set and clear
        "making_const_table" as appropriate.
        (pic_load_addr, pic_add_dot_plus_four): New insns.

        * invoke.texi (Thumb Options): Fix spelling.  Document new
        options -msingle-pic-base and -mpic-register=.

1999-07-26  Andrew Haley  <aph@cygnus.com>

        * config/m32r/initfini.c (__init): Use a full word immediate for
        __fini: this allows it to be placed in any memory region.

        * config/m32r/t-m32r: Compile crtinit.o and crtfini.o for
        -mmodel=medium.  This is OK for all memory models.

Mon Jul 26 11:58:46 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c: Replace %R%s in asm_fprintf strings with %r.
        * config/arm/arm.h: Replace %R%s in asm_fprintf strings with %r.

Mon Jul 26 10:23:36 1999  Nick Clifton  <nickc@cygnus.com>

        * final.c (asm_fprintf): Accept ASM_FPRINTF_EXTENSIONS, if
        defined.

        * tm.texi: Document ASM_FPRINTF_EXTENSIONS.

Sun Jul 25 23:51:59 1999  Richard Henderson  <rth@cygnus.com>

        * i860.h (EXPAND_BUILTIN_SAVEREGS): New.
        (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.
        * i860.c (output_delayed_branch): Disable.
        (output_delay_insn): Likewise.
        (i860_saveregs): New.
        (i860_build_va_list): New.
        (i860_va_start): New.
        (i860_va_arg): New.
        * i860.md: Disable all peepholes using output_delayed_branch.
        * i860/sysv4.h (I860_SVR4_VA_LIST): New.

Sun Jul 25 23:44:13 1999  Richard Henderson  <rth@cygnus.com>

        * clipper.h (EXPAND_BUILTIN_SAVEREGS): Remove argument.
        (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.
        * clipper.c (clipper_builtin_saveregs): Only dump registers.
        Return the address of the save area.
        (clipper_build_va_list): New.
        (clipper_va_start): New.
        (clipper_va_arg): New.

Sun Jul 25 22:56:47 1999  Richard Henderson  <rth@cygnus.com>

        * arc.h (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.
        * arc.c (arc_setup_incoming_varargs): Set alias set of
        varargs save area.
        (arc_va_start): New.
        (arc_va_arg): New.

Sun Jul 25 22:45:55 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (EXPAND_BUILTIN_SAVEREGS): Delete.
        (BUILD_VA_LIST_TYPE): New.
        (EXPAND_BUILTIN_VA_START): New.
        (EXPAND_BUILTIN_VA_ARG): New.
        * alpha.c (alpha_builtin_saveregs): Delete.
        (alpha_build_va_list): New.
        (alpha_va_start): New.
        (alpha_va_arg): New.

Sun Jul 25 21:40:33 1999  Jeffrey A Law  (law@cygnus.com)

        * config/svr4.h (CTORS_SECTION_ASM_OP): Do not emit directives in
        column zero.
        (DTORS_SECTION_ASM_OP, INIT_SECTION_ASM_OP): Likewise.
        (FINI_SECTION_ASM_OP, ASM_OUTPUT_SECTION_NAME): Likewise.

        * gcc.texi: More changes related to list conversion.
        * invoke.texi: Likewise.

Sun Jul 25 18:15:39 1999  Richard Henderson  <rth@cygnus.com>

        * builtins.c (expand_builtin_saveregs): Remove static, remove exp
        and ignore arguments, bail if no EXPAND_BUILTIN_SAVEREGS.
        (expand_builtin_next_arg): Accept ARGLIST not EXP.
        (stabilize_va_list): New function.
        (std_expand_builtin_va_start): New function.
        (expand_builtin_va_start): New function.
        (get_varargs_alias_set): New function.
        (std_expand_builtin_va_arg): New function.
        (expand_builtin_va_arg): New function.
        (expand_builtin_va_end): New function.
        (expand_builtin_va_copy): New function.
        (expand_builtin): Call them.
        * c-common.c (c_common_nodes_and_builtins): Build __builtin_va_list,
        __builtin_{varargs_start,stdarg_start,end,copy}.
        (build_va_arg): New function.
        * c-common.h (CTI_PTR_TYPE, ptr_type_node): Delete.
        (build_va_arg): Declare.
        * c-decl.c (ptr_type_node, va_list_type_node): New.
        * c-parse.gperf (__builtin_va_arg): New.
        * c-parse.in (VA_ARG): New token.
        (unary_expr): Recognize it.
        * expr.c (expand_expr): Expand VA_ARG_EXPR.
        * expr.h (std_expand_builtin_va_start): Declare.
        (std_expand_builtin_va_arg): Declare.
        (expand_builtin_va_arg): Declare.
        (get_varargs_alias_set): Declare.
        * tree.def (VA_ARG_EXPR): New.
        * tree.h (BUILT_IN_VARARGS_START): New.
        (BUILT_IN_STDARG_START, BUILT_IN_VA_END): New.
        (ptr_type_node, va_list_type_node): Declare.
        * tm.texi (EXPAND_BUILTIN_SAVEREGS): Kill unused ARGLIST argument.
        * m32r.h (EXPAND_BUILTIN_SAVEREGS): Likewise.
        * m88k.h, m88k.c: Likewise.
        * mn10300.h, mn10300.c: Likewise.
        * pa.h, pa.c: Likewise.
        * rs6000.h, rs6000.c: Likewise.
        * sh.h, sh.c: Likewise.
        * sparc.h, sparc.c: Likewise.

        * emit-rtl.c (operand_subword): Copy alias set.
        (change_address): Likewise.

Sun Jul 25 15:04:37 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (compute_frame_size): Scan all the used callee saved registers,
        not just the first one.

Fri Jul 23 14:09:58 1999  Philip Blundell  <pb@nexus.co.uk>

        * config/arm/arm.h (TARGET_SWITCHES): Add
        -m{no-}single-pic-base.  Correct help string for -mshort-load-words.
        (TARGET_OPTIONS): Add -mpic-register=.
        (ARM_FLAG_SINGLE_PIC_BASE, TARGET_SINGLE_PIC_BASE): Define.
        (arm_pic_register_string): Declare.
        (NEED_PLT_GOT): Delete, replace with ...
        (NEED_GOT_RELOC, NEED_PLT_RELOC): ... these.  New macros.
        (OUTPUT_INT_ADDR_CONST): Replace NEED_PLT_GOT with NEED_GOT_RELOC.
        (ASM_OUTPUT_MI_THUNK): Replace NEED_PLT_GOT with NEED_PLT_RELOC.
        * config/arm/arm.c (arm_override_options): Add new option
        -mpic-register=N.
        (arm_pic_register_string): New variable.
        (arm_finalize_pic): Respect TARGET_SINGLE_PIC_BASE.
        (output_func_prologue): If TARGET_SINGLE_PIC_BASE, treat the PIC
        register as never live.  Use NEED_PLT_RELOC not NEED_PLT_GOT.
        (output_return_instruction): Likewise.
        * config/arm/elf.h (NEED_PLT_GOT): Delete, replace with ...
        (NEED_GOT_RELOC, NEED_PLT_RELOC): ... these.  Define to flag_pic.
        * config/arm/arm.md: Use NEED_PLT_RELOC in place of NEED_PLT_GOT.

        * invoke.texi (ARM Options): Fix spelling.  Remove duplicate
        mention of -msched-prolog.  Document new options -msingle-pic-base
        and -mpic-register=.

Thu Jul 22 18:23:56 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (reemit_notes): Tidy.
        * sched.c (reemit_notes): Duplicate 1998-08-31 patch to
        haifa's routine.

Thu Jul 22 18:21:04 1999  Richard Henderson  <rth@cygnus.com>

        * explow.c (trunc_int_for_mode): New function.
        (plus_constant_wide): Use it.
        * combine.c (simplify_and_const_int): Likewise.
        (merge_outer_ops): Likewise.
        (simplify_shift_const): Likewise.
        * cse.c (simplify_unary_operation): Likewise.
        (simplify_binary_operation): Likewise.
        * emit-rtl.c (operand_subword): Likewise.
        * rtl.h: Declare it.

Thu Jul 22 14:34:59 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * config/arm/arm.c (arm_print_operand): Fix typo in 'M' case
        (use NUM_REGS instead of NUM_INTS).

Thu Jul 22 11:25:20 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * builtins.c: New file.
        * expr.c (saveregs_value, apply_args_value):  Delete definition,
        moved into builtins.c.
        (string_constant): No longer static.
        (get_pointer_alignment, c_strlen, get_memory_rtx, expand_builtin,
        apply_args_size, apply_result_size, result_vector,
        expand_builtin_apply_args, expand_builtin_apply,
        expand_builtin_return): Delete functions, moved into builtins.c.
        (INCOMING_REGNO, OUTGOING_REGNO): Delete unused macros.
        * expr.h (saveregs_value, apply_args_value): Declare variables.
        (expand_builtin, string_constant): Declare functions.
        * Makefile.in: Update to build builtin.o.

Wed Jul 21 00:46:58 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * defaults.h (DWARF2_GENERATE_TEXT_SECTION_LABEL): New macro.
        * tm.texi (DWARF2_GENERATE_TEXT_SECTION_LABEL): Define it.
        * dwarf2out.c (dwarf2out_init): Don't output a label to mark the
        start of the text section if DWARF2_GENERATE_TEXT_SECTION_LABEL is
        false.
        * config/mips/iris6.h (DWARF2_GENERATE_TEXT_SECTION_LABEL):
        Define to zero.

1999-07-21  Michael Meissner  <meissner@cygnus.com>

        * print-rtl.c (print_rtx): Print the names of the virtual
        registers.

Wed Jul 21 16:00:32 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (INITIAL_ELIMINATION_OFFSET): Fix typo
        introduced in previous delta.

Wed Jul 21 14:30:51 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-lang.c (finish_file): Rename void_list_node to void_list_node_1
        to avoid name clash.

Wed Jul 21 08:39:22 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * c-lex.c (yylex) : Correct the test for overflow when lexing
        integer literals.

Tue Jul 20 18:02:42 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (insn_cost): FREE implies cost 0 and vice versa.
        (adjust_priority): Always call ADJUST_PRIORITY.
        (schedule_insn): Only put insns into the ready at cost 0.
        (schedule_block): Remove redundant initial sort.  Give clock_var
        and can_issue_more to MD_SCHED_REORDER.  Requeue if hazard cost
        is not 0.
        * tm.texi (MD_SCHED_REORDER): Update docs.

        * sparc.h (MD_SCHED_REORDER): Update.  Set CAN_ISSUE_MORE.
        * sparc.c (ultra_reorder_called_this_block): Delete.
        (ultrasparc_sched_init): Don't set it.
        (ultrasparc_sched_reorder): Don't check it.

Tue Jul 20 17:07:54 1999  Richard Henderson  <rth@cygnus.com>

        * rs6000.h (struct rs6000_args): Add sysv_gregno.
        * rs6000.c (init_cumulative_args): Init sysv_gregno.
        (function_arg_boundary): Align DFmode.
        (function_arg_advance): Restructure for ABI_V4; use sysv_gregno
        to get fp reg and stack overflow correct.
        (function_arg): Likewise.
        (function_arg_pass_by_reference): True for TFmode for ABI_V4.
        (setup_incoming_varargs): Restructure for ABI_V4; use
        function_arg_advance to skip final named argument.
        (expand_builtin_saveregs): Properly unskip the last integer arg
        when doing varargs.  Adjust overflow location calculation.

        * ginclude/va-ppc.h (struct __va_list_tag): Make gpr and fpr
        explicitly unsigned.
        (__VA_FP_REGSAVE): Use new OFS argument instead of AP->fpr directly.
        (__VA_GP_REGSAVE): Similarly.
        (__va_longlong_p): Delete.
        (__va_arg_type_violation): New declaration.
        (va_arg): Restructure.  Flag promotion errors.  Align double.
        TFmode passed by reference.

        * rs6000.md (movdi_32+1): Use GEN_INT after arithmetic
        in the HOST_BITS_PER_WIDE_INT > 32 case.

Tue Jul 20 12:37:30 1999  Hans-Peter Nilsson  <hp@bitrange.com>

        * dwarf2out.c (output_abbrev_section): Terminate with a zero.

Tue Jul 20 12:12:27 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * gcc.c (default_compilers, cpp-output): Pass -fpreprocessed.
        * toplev.c (documented_lang_options): Add -fpreprocessed.
        * cpplib.h (struct cpp_buffer): Add preprocessed.
        * cppinit.c (cpp_handle_option): Handle -fpreprocessed.
        (cpp_start_read): Don't expand macros or emit an initial #line
        directive if -fpreprocessed.

Tue Jul 20 12:12:09 1999  Michael Tiemann  <tiemann@holodeck.cygnus.com>

        * cpplib.h (struct cpp_buffer): Added manual_pop for
        better C++ tokenization.
        * cpplib.c (cpp_get_token): Return CPP_EOF if manual_pop.
        Also, support C++ tokenization for ->*, .*, <?, and >? operators.
        * c-common.c (cpp_token): Make non-static.

Tue Jul 20 11:24:19 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * c-common.h: New file.
        * c-common.c (permanent_obstack): Delete unused declaration.
        (c_global_trees): New array.
        (c_common_nodes_and_builtins): New function; split off common code
        from init_decl_processing in both c-decl.c and cp/decl.c.
        * c-tree.h: Delete lots of declarations of tree nodes; replaced by
        c_global_trees and accessor macros defined in c-common.h.
        Include c-common.h.
        * c-decl.c: Delete definitions for tree nodes that were replaced by
        c_global_trees.
        (init_decl_processing): Build void_list_node.
        Call c_common_nodes_and_builtins; delete code to generate the common
        builtins here.
        * objc/objc-act.c (build_module_descriptor): Rename variable
        void_list_node to avoid clash with c-common.h.

        * Makefile.in: Update dependencies.
        * objc/Make-lang.in: Likewise.

Mon Jul 19 14:22:18 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * config/mips/iris6gld.h (MAKE_DECL_ONE_ONLY): Define.
        (UNIQUE_SECTION_P): Likewise.
        (UNIQUE_SECTION): Likewise.

1999-07-19  Linas Vepstas  <linas@linas.org>

        * config/i370/README: New file.
        * config/i370/linux.h: New file.
        * config/i370/mvs.h: New file.
        * config/i370/oe.h: New file.
        * config/i370/t-linux: New file.
        * config/i370/t-mvs: New file.
        * config/i370/t-oe: New file.
        * config/i370/x-oe: New file.
        * config/i370/xm-linux.h: New file.
        * config/i370/xm-mvs.h: New file.
        * config/i370/xm-oe.h: New file.

        * i370.c (label_node_t): Add first_ref_page, label_addr,
        label_first_ref, label_last_ref members.
        (mvs_need_base_reload): Renamed from mvs_label_emitted.
        (MAX_MVS_LABEL_SIZE): Define.
        (MAX_LONG_LABEL_SIZE): Define.
        (alias_node_t, alias_anchor, alias_number): New.
        (mvs_function_table): Reorder for EBCDIC.
        (ascebc, ebcasc): Unconditionally define.
        (i370_branch_dest, i370_branch_length): New functions.
        (i370_short_branch, i370_label_scan): New functions.
        (mvs_get_label): Renamed from mvs_add_label.  Search for
        an existing label before creating a new one.
        (mvs_add_label): New function.
        (mvs_get_label_page): New function.
        (mvs_free_label_list): Renamed from mvs_free_label.  Iterate
        over the entire list.
        (mvs_check_page) [TARGET_HLASM]: Use BASR not BALR.
        (mvs_check_page) [TARGET_ELF_ABI]: New function.
        (mvs_add_alias, mvs_need_alias): New functions.
        (mvs_get_alias, mvs_check_alias): New functions.
        (handle_pragma): New function.
        (mvs_function_check): New function.
        (unsigned_jump_follows_p): Search harder.
        (i370_function_prolog) [TARGET_HLASM]: Handle LE370.  Scan labels.
        (i370_function_prolog) [TARGET_ELF_ABI]: New function.
        * i370.h (TARGET_VERSION): Delete.
        (CPP_SPEC, CPP_PREDEFINES): Delete.
        (mvs_label_emitted): Delete.
        (TARGET_EBCDIC): Delete.
        (MAP_CHARACTER): Define only if TARGET_EBCDIC.
        (HANDLE_PRAGMA): Define.
        (HARD_REGNO_NREGS): Handle complex modes.
        (HARD_REGNO_MODE_OK): Likewise.
        (CLASS_MAX_NREGS): Likewise.
        (RET_REG): Likewise.
        (EXTRA_CONSTRAINT): Define.
        (RETURN_IN_MEMORY): True for DImode.
        (TRAMPOLINE_TEMPLATE): Use gen_rtx instead of GEN_INT.
        (FUNCTION_PROFILER): Delete.
        (COUNT_REGS): Fail if REG_P but not REG_OK_FOR_BASE_P.
        (NOTICE_UPDATE_CC): Correct handling of MULT, DIV, logicals and shifts.
        (TARGET_ESC, TARGET_BELL): Conditionally define for TARGET_EBCDIC.
        (TARGET_BS, TARGET_TAB, TARGET_NEWLINE): Likewise.
        (TARGET_VT, TARGET_FF, TARGET_CR): Likewise.
        (ASM_FILE_START): Add "RMODE ANY".
        (ASM_OUTPUT_EXTERNAL): Check for aliases.
        (ASM_GLOBALIZE_LABEL): Likewise.
        (ASM_OUTPUT_LABELREF): Likewise.
        (ASM_OUTPUT_COMMON): Likewise.
        (PRINT_OPERAND): Handle 'K', 'W', default.
        (PRINT_OPERAND_ADDRESS): New.
        (Lots of defines): Add support for TARGET_ELF_ABI.
        * i370.md (attr length): New.  Define for all patterns.
        (*): Lots of tweeks to assembly output and constraints.

Mon Jul 19 15:09:29 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (arithmetic, logical, and shift Rc combiner patterns):
        Disable patterns performing SImode comparisons with SImode values
        if TARGET_POWERPC64 and instruction does not sign-extend or does
        not mask to narrower than SImode, i.e. where bit 31 and bit 63 may
        differ for signed quantities.
        (indirect_jump): Add expander to choose RTL based on TARGET_64BIT.
        (tablejump): Patterns contingent on TARGET_64BIT not TARGET_POWERPC64.
        (decrement_and_branch_on_count): Add 64-bit variant.

Mon Jul 19 09:36:27 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * final.c (output_asm_insn): When searching for the matching string
        for a given dialect, don't run past the end of the list of
        alternatives if there are fewer alternatives in the template than
        dialects.

1999-07-17  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * gcc.texi: Update e-mail addresses and URLs to gcc.gnu.org.
        Removed paragraph about compression of files and size limitation,
        duplicated in the FAQ.  Use gcc-patches for posting patches.
        * gcc.c (main): Updated URL with bug reporting instructions to
        gcc.gnu.org.  Removed e-mail address.
        * system.h (abort): Likewise.

1999-07-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (stmp-multilib-sub): Make the files extracted
        from $(LIBGCC1) writable.

Sat Jul 17 14:25:46 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/aout.h: Reformat for improved readability.

        * config/arm/arm.h: Reformat for improved readability.
        Replace uses of fprintf with asm_fprintf where appropriate.
        (ARM_DECLARE_FUNCTION_NAME): New macro:  Perform any generic ARM
        function declaration assembler actions.
        (NUM_INTS): New macro: Convert from bytes to words.
        (NUM_REGS): New macro: Compute number of registers required to
        hold a quanitity of tyep MODE.
        (NUM_REGS2): New macro: Like NUM_REGS but also copes with BLKmode
        types.
        (NUM_ARG_REGS): New macro: The number of argument registers
        available.
        (ARG_REGISTER): New macro: Compute the register number of the Nth
        argument register.
        (LAST_ARG_REGNUM): New macro: The number of the last argument
        register.
        (SP_REGNUM): New macro: Register number of the stack pointer.
        (FP_REGNUM): New macro: Register number of the frame pointer.
        (FUNCTION_ARG, FUNCTION_ARG_PARTIAL_NREGS, INIT_CUMULATIVE_AGS,
        FUNCTION_ARG_ADVANCE, SETUP_INCOMING_VARARGS): Change
        CUMULATIVE_ARGS so that it counts registers not bytes.

        * config/arm/arm.c: Rename TARGET_THUMB_INTERWORK to
        TARGET_INTERWORK.
        Replace uses of fprintf with asm_fprintf where appropriate.
        (output_ascii_pseudo_op): Replace with version from thumb.c

        * config/arm/coff.h (ASM_FILE_START): Emit ASM_APP_OFF.

        * config/arm/elf.h (CPP_PREDEFINES): Replace with
        SUBTARGET_CPP_SPEC.
        (ASM_DECLARE_FUNCTION_NAME): Use ARM_DECLARE_FUNCTION_NAME.
        (ASM_FILE_START): Emit ASM_APP_OFF.

Fri Jul 16 13:48:09 1999  Jeffrey A Law  (law@cygnus.com)

        * pa.c (compute_frame_size): Round frame according to
        STACK_BOUNDARY rather than a hardwired value.

        * pa.h (POINTER_SIZE, PARM_BOUNDARY): Define in terms of BITS_PER_WORD.

        * configure.in (hppa*-*-hpux11*): Use symbolic MASK_PA_11 instead
        of "1".
        * configure: Rebuilt.

        * configure.in (hppa*-*-linux*): New configuration.
        * configure: Rebuilt.
        * pa.h (MAX_OFILE_ALIGNMENT): Delete.
        * pa/som.h (MAX_OFILE_ALIGNMENT): Define.
        * pa/pa-linux.h: New file.
        * pa/t-linux: New file.
        * pa/xm-linux.h: New file.

        * pa.c (hppa_legitimize_address): Change references from SImode to
        either Pmode or word_mode as appropriate.
        (emit_move_sequence, store_reg, load_reg): Likewise.
        (set_reg_plus_d, hppa_expand_prologue): Likewise.
        (output_mul_insn): Likewise.
        * pa.h (PROMOTE_MODE): Likewise.
        (INITIALZE_TRAMPOLINE): Likewise.
        (Pmode): Define to word_mode.

        * pa.c (compute_frame_size): Use UNITS_PER_WORD instead of hardwired
        value of 4.  Allocate 8 bytes for each FP register save.
        (hppa_expand_epilogue): Use UNITS_PER_WORD instead of harwarewired
        value of 4.
        (hppa_expand_prologue): Likewise.
        * pa.h (PROMOTE_MODE): Likewise.
        (HARD_REGNO_MODE_OK, FUNCTION_ARG_SIZE): Likewise.
        (FUNCTION_ARG_BOUNDARY): Likewise.

        * invoke.texi (HPPA Options): Remove -mspace/-mno-space.

        * pa.c (out_of_line_prologue_epilogue): Delete.
        (override_options): Remove -mspace related code.
        (hppa_expand_prologue, hppa_expand_epilogue): Likewise.
        (compute_frame_size): Only allocate space for register that
        actually need to be saved.
        * pa.h (MASK_SPACE, TARGET_SPACE): Delete.
        (TARGET_SWITCHES): Remove -mspace, -mno-space
        * pa/t-pa (LIB2FUNCS_EXTRA): Remove ee.asm and ee_fp.asm
        * pa/t-pro (LIB2FUNCS_EXTRA): Likewise.  Remove -mspace multilib.
        * pa/ee.asm, pa/ee_fp.asm: Delete.

        * pa/elf.h (ASM_OUTPUT_DOUBLE_INT): Define.

        * config/svr4.h (CONST_SECTION_ASM_OP): Do not emit assembler
        directive in column zero.

Fri Jul 16 01:39:57 1999  Jeffrey A Law  (law@cygnus.com)

        * m68k.c (output_function_prologue): Fix computation of save mask
        when generating PIC code.

Thu Jul 15 15:40:09 1999  Jim Wilson  <wilson@cygnus.com>

        * tree.c (build_type_attribute_variant): Move current_obstack restore
        after build_qualified_type call.

1999-07-15  Mark Mitchell  <mark@codesourcery.com>

        * configure.in: Use t-iris6, even with GNU LD.
        * config/mips/iris6gld.h: Fix typo in linker spec.
        * config/mips/t-iris6gld: Remove.

Thu Jul 15 15:15:43 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (insv, extzv): Remove SImode dependence in named
        patterns.  Explicitly generate DImode RTL if PowerPC64 and
        operand is DImode.
        (insvdi): Reverse start and size in instruction template.

1999-07-12  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi: Typo fixes.

Wed Jul 14 23:28:06 1999  Jeffrey A Law  (law@cygnus.com)

        * emit-rtl.c (gen_realpart): Issue an error for cases GCC can not
        handle at this time instead of silently generating incorrect code.
        (gen_imagpart): Likewise.

        * reload.c (find_reloads): Emit a USE for a pseudo register without
        a hard register if we could not create an optional reload for the
        pseudo.

Wed Jul 14 23:45:48 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * c-typeck.c (output_init_element, process_init_element):
        When advancing constructor_unfilled_fields for a RECORD_TYPE,
        check for nameless bit fields.

Wed Jul 14 01:57:39 1999  Richard Henderson  <rth@cygnus.com>

        * regclass.c (scan_one_insn): Notice subregs that change the
        size of their operand.
        (record_reg_classes): Use that to obey CLASS_CANNOT_CHANGE_SIZE.

Wed Jul 14 01:41:42 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (alpha*-*-*): Include alpha/t-ieee.
        * configure: Rebuilt.
        * alpha/t-ieee: New file.

Tue Jul 13 10:45:58 1999  Jeffrey A Law  (law@cygnus.com)

        * rs6000.c (find_addr_reg): Do not select r0 as an address
        register.

Tue Jul 13 00:46:18 1999  Philippe De Muyter  <phdm@macqel.be>

        * m68k/x-mot3300 (XCFLAGS): List of big files now includes `cse.o'.

Mon Jul 12 14:29:15 1999  Jeffrey A Law  (law@cygnus.com)

        * rs6000.md (movsf): Do not force easy FP constants into memory.

        * expr.c (expand_expr, case PLUS_EXPR): Pass constants through
        immed_double_const to ensure they are properly truncated then
        sign extended.

Mon Jul 12 10:40:01 1999  Vladimir Makarov  <vmakarov@tofu.to.cygnus.com>

        * config/arm/thumb.c (thumb_reorg): Call replace_symbols_in_block
        always unless NO_DEBUG is used.  Compile this code
        unconditionally.
        (replace_symbols_in_block): Compile it unconditionally.

Sun Jul 11 12:32:32 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (i?86-*-elf*): New target.
        * configure: Rebuilt.
        * i386/i386elf.h, i386/t-i386elf: New files.

Fri Jul  9 22:39:44 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (main): Don't complain about saying -gdwarf.
        (rest_of_compilation): Remove redundant code.

Fri Jul  9 19:08:55 1999  Jim Wilson  <wilson@cygnus.com>

        * unroll.c (unroll_loops): Don't delete named CODE_LABELs.

Fri Jul  9 18:54:18 1999  Felix Lee  <flee@cygnus.com>

        * config/i960/i960.c (ret_label): Change asm label from "LR:" to
        "Li960R:", to avoid name clash.

Fri Jul  9 10:48:28 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

        * loop.c (check_dbra_loop): When reversing a loop, delete all
        REG_EQUAL notes referencing the reversed biv except those which are
        for a giv based on it.

Fri Jul  9 03:51:52 1999  Jeffrey A Law  (law@cygnus.com)

        * version.c: Drop "gcc-" prefix from version #.

Thu Jul  8 18:06:30 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarf2out.c (dwarf2out_line): Emit a line number comment after
        the label if we're being verbose.

Thu Jul  8 14:18:46 1999  Richard Henderson  <rth@cygnus.com>

        * m68k.c (output_function_prologue): Add pic register to mask
        if live and flag_pic.
        (output_function_epilogue): Likewise.

Thu Jul  8 12:55:12 1999  Jeffrey A Law  (law@cygnus.com)

        * dbxelf.h (ASM_OUTPUT_SOURCE_LINE): Do not put assembler
        directives in column zero.

        * pa/elf.h (ASM_FILE_START): Define.
        * pa/som.h (ASM_FILE_START): Include .level directives.
        * pa/hpux10.h (ASM_FILE_START): Delete.
        * pa/hpux11.h (ASM_FILE_START): Delete.

        * pa/elf.h (BSS_SECTION_ASM_OP): Use .section .bss.

Thu Jul  8 18:03:19 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (choose_reload_regs): Never call remove_adress_replacements
        when reload_out equals reload_in.

Thu Jul  8 16:50:14 1999  Nick Clifton  <nickc@cygnus.com>

        * invoke.texi (Spec Files): New node: Describe the contents of
        spec files.

Thu Jul  8 10:28:25 1999  Craig Burley  <craig@jcb-sc.com>

        * invoke.texi (DEC Alpha Options): Put @end table at
        beginning of line, to avoid confusing texi2html.

Thu Jul  8 09:22:06 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/elf.h (ASM_OUTPUT_INTERNAL_LABEL): Fixed typo
        introduced in previous delta.

Wed Jul  7 02:00:04 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * reload1.c (gen_reload): When synthesizing a 3 operand add
        sequence, improve test for when to reload OP1 into the reload
        register instead of OP0.

Wed Jul  7 01:38:03 1999  Jim Wilson  <wilson@cygnus.com>

        * unroll.c (unroll_loop): Don't delete NOTE_INSN_DELETED_LABEL notes.

1999-07-07  Manfred Hollstein  <mhollstein@cygnus.com>

        * m88k/dguxbcs.h (CPP_SPEC): Add missing \ in multi-line
        string literal.

Wed Jul  7 01:16:43 1999  Richard Henderson  <rth@cygnus.com>

        * ginclude/varargs.h (__builtin_va_alist_t): New typedef.
        (va_dcl): Use __builtin_va_alist_t.

Wed Jul  7 01:14:42 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarf2out.c (gen_struct_or_union_type_die): Only remember types
        on the permanent_obstack.
        * dwarfout.c (output_type): Likewise.

Tue Jul  6 15:25:32 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * c-common.c (unsigned_type,signed_type,signed_or_unsigned_type) :
        Merged from c-typeck.c and cp/typeck.c.
        * c-typeck.c (unsigned_type,signed_type,signed_or_unsigned_type) :
        Merged into c-common.

Tue Jul  6 13:06:01 1999  Dave Brolley  <brolley@cygnus.com>

        * c-lex.c (errorcount): Declare it.
        (finish_parse): Update errorcount when using CPPLIB.

1999-07-06  Bruce Korb  <ddsinc09@ix.netcom.com>

        * fixinc/inclhack.def(end_else_label): Double the backslash so
        sed gets a chance to see it.
        * fixinc/inclhack.sh: regen
        * fixinc/fixincl.x: regen

Fri Jul  2 18:49:51 1999  Nick Clifton  <nickc@cygnus.com>

        Add framework to support armv5 architecture when it becomes
        available:

        * config/arm/arm.c (FL_ARCH5): New processor capability flag.
        (arm_arch5): New variable.
        (all_architectures): Add armv5 line.
        * config/arm/arm.h (CPP_CPU_ARCH_SPEC): Define __ARM_ARCH_5__ if
        -march=armv5 is specified on the command line.
        (arm_arch5): Export this variable.
        * invoke.texi: Document new string accepted by -march= switch for
        ARM ports.

        * config/arm/arm.h: Replace use of constant 12 as a register
        number with IP_REGNUM.  Similarly 14 and LR_REGNUM.
        * config/arm/arm.c: Replace use of constant 12 as a register
        number with IP_REGNUM.  Similarly 14 and LR_REGNUM.

        * config/arm/elf.h: Tidy up.
        * config/arm/coff.h: Tidy up.

Thu Jul  1 19:08:13 1999  Mark P. Mitchell  <mark@codesourcery.com>

        * gcc/configure.in (mips-sgi-irix6*): Handle --with-gnu-ld.
        * gcc/config/mips/t-iris6gld: New file.
        * gcc/config/mips/iris6gld.h: Likewise.

Fri Jul  2 13:23:39 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * c-decl.c (widest_integer_literal_type_node,
        widest_unsigned_literal_type) : New.
        (init_decl_processing): Handle/use the two new types.
        * c-common.c (type_for_size,type_for_mode) : Same.
        * c-lex.c (yylex) : Same.
        * c-typeck.c (unsigned_type,signed_type,signed_or_unsigned_type) :
        Same.
        * c-tree.h (widest_integer_literal_type_node,
        widest_unsigned_literal_type) : New.

Fri Jul  2 03:05:44 1999  Jeffrey A Law  (law@cygnus.com)

        * dwarfout.c (field_byte_offset): Correctly compute the object's
        byte offset for the first bit of a field which crosses an alignment
        boundary on a !BYTES_BIG_ENDIAN target.

Fri Jul  2 01:36:36 1999  Robert Lipe  <robertlipe@usa.net>

        * fixinc.svr4: Fix <arpa/inet.h> by deleting protos for htons and
        ntohs.

Fri Jul  2 00:46:47 1999  Richard Henderson  <rth@cygnus.com>
                          Jeff Law <law@cygnus.com>

        * ginclude/varargs.h (va_dcl): Use word_mode for type of
        __builtin_va_list.

        * except.c: Include intl.h.
        (expand_eh_return): Set current_function_cannot_inline.
        (save_eh_status, restore_eh_status): Twiddle eh_return_stub_label.
        * function.h (struct function): Add eh_return_stub_label.
        * flow.c (delete_unreachable_blocks): Don't merge across EH edges.
        * Makefile.in (except.o): Depend on intl.h.

Fri Jul  2 00:04:23 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (movdf_hardfloat32): Handle PRE_INC and PRE_DEC the
        same as offsettable in cases 1 and 2.

Thu Jul  1 20:54:10 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (extqh): Define as 64-((R&7)*8) instead of 56-(((R-1)&7)*8).
        (extlh, extwh): Likewise.

Thu Jul  1 11:05:25 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * c-lex.c (yylex): Improve 'integer constant out of range' messages.

Wed Jun 30 16:51:41 1999  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Add arm-pe and thumb-pe targets.
        * configure: Regenerate.

        * thumb.c (arm_naked_function_p): New function: Determines if
        a function is naked (has no gcc generated prologue/epilogue).
        (is_called_in_ARM_mode): Return true if the func has the
        interfacearm attribute.
        (output_return): Do not generate a return for naked functions.
        (thumb_function_prologue): Do not generate a prologue for
        naked functions.
        (thumb_expand_prologue): Do not generate a prologue for naked
        functions.
        (thumb_expand_epilogue): Do not generate an epilogue for naked
        functions.
        (arm_valid_machine_decl_attribute): New function, copied from
        arm.c:  Permit naked and interfacearm attributes.

        * config/arm/pe.c: New file: Support code for arm-pe target.
        * config/arm/pe.h: New file: Header file for arm-pe target.
        * config/arm/tpe.h: New file: Header file for thumb-pe target.
        * config/arm/t-thumb-pe: New file: Makefile fragment for
        thumb-pe target.

1999-07-01  Mark Kettenis  <kettenis@gnu.org>

        * config/i386/gnu.h (CPP_SPEC): Define __PIC__ and __pic__ if
        -fPIC or -fpic is specified.

Wed Jun 30 03:31:54 1999  Jeffrey A Law  (law@cygnus.com)

        * expr.c (emit_block_move): Use copy_to_mode_reg for
        !TARGET_MEM_FUNCTIONS case too.

        * configure.in (hppa*-*-*): Add som.h or elf.h to tm_file as
        appropriate.
        * configure: Rebuilt.
        (hppa1.1-*-pro*, hppa1.1-*-rtems*): Define target_cpu_default.
        * pa.h: Include dbxelf.h.  Delete various dbx/stabs related
        definitions made redundant by dbxelf.h inclusion.  Delete
        lots of definitions related to assembly output that are
        specific to the SOM object format.
        * pa.c (output_function_prologue): Do not emit the function's
        name for OBJ_ELF.
        * pa-pro-end.h (STARTFILE_SPEC): Undefine before redefining.
        * pa-pro.h: Deleted.
        * som.h: New file with SOM specific definitions.
        * elf.h: New file with ELF specific definitions.

        * elfos.h (const_section): Output a tab before assembler directives.
        (ctors_section, dtors_section): Likewise.
        (ASM_OUTPUT_SECTION_NAME): Likewise.

        * pa/pa1.h: Delete unused file.

Tue Jun 29 01:37:53 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (hppa*-hp-hpux11*): New configuration.
        * configure: Rebuilt.
        * pa/pa-hpux11.h: New file.
        * pa.h (CPP_SPEC): Conditionally add -D__STDC_EXT__ to the cpp
        command line.

        * mips.md (leasi, leadi): New patterns.

        * expr.c (emit_block_move): Properly handle case where one of the
        block move arguments has a queued increment or decrement.
        (clear_storage): Similarly.  Fix formatting goof.

1999-06-28  "David O'Brien"  <obrien@NUXI.com>

        * fixinc/inclhack.def(stdio_va_list): This patch Removes a
        semicolon from the BSD VA_LIST replacement expression.

        * fixinc/inclhack.sh: regen
        * fixinc/fixincl.x: regen

        * fixinc/mkfixinc.sh: Have `i[34567]86-*-freebsd*' machines
        now use the fixincl program.

Mon Jun 28 05:28:12 1999  Jeffrey A Law  (law@cygnus.com)

        * m68k.h (CONDITIONAL_REGISTER_USAGE): Define for !SUN_FPA
        case.  Also make the PIC register call_used.

        * m68k.h (FINALIZE_PIC): Delete.
        * m68k.c (finalize_pic): Delete.

Mon Jun 28 05:16:35 1999  Richard Henderson  <rth@cygnus.com>

        * m68k.h (PREFERRED_RELOAD_CLASS): Don't force any FP const_doubles
        to memory.

Mon Jun 28 04:07:27 1999  David Edelsohn  <edelsohn@gnu.org>

        * expmed.c (expand_divmod): Ensure unsigned value fits in reg_note.

Sun Jun 27 02:39:08 1999  Richard Henderson  <rth@cygnus.com>

        * jump.c (jump_optimize_1): Validate the cmov copy to a temporary.

Sat Jun 26 17:18:18 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (print_operand, case 'L'): Use plus_constant_for_output.

Fri Jun 25 11:33:24 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (override_options): Add -mcpu=ev45 as an alias for ev4.

Fri Jun 25 13:41:25 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (output_toc): Always use hex values for floating-point
        constants.  Store single-precision values in upper-half of TOC
        entry in 64-bit mode.
        * rs6000.md (floatsidf2, floatunssidf2): Add !TARGET_POWERPC64
        to final constraints.
        (fix_truncdfsi2 splitter): Change pattern matching fctiwz.
        (fctiwz): Improve accuracy of RTL for pattern.

Fri Jun 25 11:26:38 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * expr.c (expand_expr): Allow RTL_EXPR's through the
        MAX_INTEGER_COMPUTATION_MODE checks.

Fri Jun 25 06:06:37 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (MASK_SUPPORT_ARCH, MASK_CPU_EV5, MASK_CPU_EV6): Define
        such that MASK_SUPPORT_ARCH is not negative.

Fri Jun 25 05:35:44 1999  Jeffrey A Law  (law@cygnus.com)

        * loop.c (verify_dominator): Properly handle ADDR_VEC and
        ADDR_DIFF_VEC insns that appear inside loops.

Thu Jun 24 22:54:05 1999  David Edelsohn  <edelsohn@gnu.org>
                          Jeff Law <law@cygnus.com>

        * rs6000.md (movdf_hardfloat32): Revert previous patch.
        Handle LO_SUM the same as offsettable in cases 1 and 2.
        * rs6000.c (find_addr_reg): Revert previous patch.

Thu Jun 24 22:43:12 1999  Philippe De Muyter  <phdm@macqel.be>

        * system.h (strstr): New external function declaration.
        * acconfig.h (NEED_DECLARATION_STRSTR): New define slot.
        * configure.in (GCC_NEED_DECLARATIONS): Check for strstr.
        * config.in, configure: Rebuilt.

1999-06-24  Tom Tromey  <tromey@cygnus.com>

        * gcc.c (main): Read user-specified specs files after computing
        additional startfile_prefixes.

Thu Jun 24 15:00:47 1999  Mark Mitchell  <mark@codesourcery.com>

        Revert these two patches:

        Thu Jun 17 21:34:24 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
        * loop.c (strength_reduce): When doing biv->giv conversion, update
        reg note of NEXT->insn.

        Thu Jun 17 17:22:07 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
        * loop.c (strength_reduce): When doing biv->giv conversion, fix up
        reg_biv_class.
        (recombine_givs): Set ix field after sorting.

Wed Jun 23 21:26:00 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * rtlanal.c (reg_referenced_p): Use reg_overlap_mentioned_p
        for the parts of an UNSPEC / UNSPEC_VOLATILE.

1999-06-23  Bruce Korb  <ddsinc09@ix.netcom.com>

        *fixinc/inclhack.def:  Add fix development commentary
        (read_ret_type): reactivate and add selection clause
        (zzz_*): tweak output file name to match what is used in hackshell.tpl
        *fixinc/{fixincl.x|inclhack.sh}: regen

Wed Jun 23 00:48:21 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * expr.c (expand_expr): STRIP_NOPS before checking against
        MAX_INTEGER_COMPUTATION_MODE
        (check_max_integer_computation_mode): Likewise.

Tue Jun 22 20:23:43 1999  Jim Wilson  <wilson@cygnus.com>

        * md.texi (smul@var{m}3_highpart): Add missing 's' prefix.

1999-06-22  Jim Wilson  <wilson@cygnus.com>

        * expr.c (store_expr): When target is a promoted subreg, return a
        promoted subreg as a result.

Tue Jun 22 17:14:58 1999  Michael Meissner  <meissner@cygnus.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Reformat to match GNU
        coding standards.
        (dwarf2out_define): Mark unused parameters appropriately.
        (gen_unspecified_parameters_die): Ditto.
        (gen_subprogram_die): Fix signed/unsigned warnings.
        (gen_variable_die): Ditto.

1999-06-22  Bruce Korb <ddsinc09@ix.netcom.com>

        * fixinc/inclhack.def(end_else_label): combined else_label
        and endif_label and fixed the sed expression.
        *fixinc/{fixincl.x|inclhack.sh}: regen

Tue Jun 22 01:58:18 1999  Jeffrey A Law  (law@cygnus.com)

        * rs6000.md (movdf_hardfloat32): Use %X instead of always emitting
        'x' when handling non-offsettable addresses

Tue Jun 22 00:20:05 1999  Richard Earnshaw (rearnsha@arm.com)

        * final.c (shorten_branches): Don't try to split an insn that has
        been deleted.

Mon Jun 21 12:47:39 1999  Mark Mitchell  <mark@codesourcery.com>

        * config/mips/mips.c (symbolic_expression_p): New function.
        (mips_select_rtx_section): Put symbolic expressions in the
        data section, not the read-only data section.

Mon Jun 21 22:13:06 1999  Jeffrey A Law  (law@cygnus.com)

        * rs6000.md (find_addr_reg): Handle LO_SUM addresses.

Mon Jun 21 20:10:42 1999  Richard Henderson  <rth@cygnus.com>

        * collect2.c (main): Log frame table count.
        (GCC_OK_SYMBOL) [ECOFF]: Accept stGlobal.
        (scan_prog_file) [COFF]: Handle frame tables.

        * alpha/alpha.h (UNALIGNED_SHORT_ASM_OP): Define.
        (UNALIGNED_INT_ASM_OP, UNALIGNED_DOUBLE_INT_ASM_OP): Define.
        * alpha/elf.h: Undef them again.
        * alpha/vms.h: Remove their definitions.

Tue Jun 22 03:17:53 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (machine_dependent_reorg): When fixing up fp pcloads,
        remove the clobber of r0 and change the REG_UNUSED note to
        REG_INC.

1999-06-21  Jakub Jelinek  <jj@ultra.linux.cz>

        * real.c (ereal_from_double): Fix for 64-bit big endian hosts.
        * emit-rtl.c (gen_lowpart_common): Add case for hosts where double
        fits in HOST_WIDE_INT and one uses union to access a long constant
        as double.

Mon Jun 21 17:18:25 1999  Richard Henderson  <rth@cygnus.com>

        * sparc.c (sparc_override_options): Don't allow profiling for
        code models other than medlow.
        (sparc_function_profiler): New function from old FUNCTION_PROFILER
        macro.  Use ASM_GENERATE_INTERNAL_LABEL and MCOUNT_FUNCTION.
        (sparc_function_block_profiler): Likewise.  Use user_label_prefix.
        (sparc_block_profiler): Likewise.
        (sparc_function_block_profiler_exit): Likewise.
        * sparc.h (FUNCTION_PROFILER): Call new sparc.c function.
        (FUNCTION_BLOCK_PROFILER): Likewise.
        (BLOCK_PROFILER): Likewise.
        (FUNCTION_BLOCK_PROFILER_EXIT): Likewise.
        (MCOUNT_FUNCTION): New.
        * sparc/pbd.h (FUNCTION_PROFILER): Delete.
        (FUNCTION_BLOCK_PROFILER, BLOCK_PROFILER): Delete.
        * sparc/sun4o3.h (FUNCTION_PROFILER): Delete.
        (MCOUNT_FUNCTION): New.
        * sparc/sysv4.h (FUNCTION_BLOCK_PROFILER): Delete.
        (BLOCK_PROFILER): Delete.
        (MCOUNT_FUNCTION): New.

Mon Jun 21 14:11:29 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (movdf_hardfloat32): Fix typo in case 2.

Mon Jun 21 12:27:17 1999  Vladimir Makarov  <vmakarov@tofu.to.cygnus.com>

        * config/mips/elf.h (BSS_SECTION_ASM_OP, ASM_OUTPUT_ALIGNED_BSS):
        Add the macros.

        * config/m68k/m68kelf.h (BSS_SECTION_ASM_OP, ASM_OUTPUT_ALIGNED_BSS):
        Ditto.

        * config/sh/sh.h (BSS_SECTION_ASM_OP, ASM_OUTPUT_ALIGNED_BSS):
        Ditto.

        * config/arm/telf.h (BSS_SECTION_ASM_OP, ASM_OUTPUT_ALIGNED_BSS):
        Ditto.

Mon Jun 21 14:58:42 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h: Add cpp support for ARM920 and ARM920T cpu
        types.

Mon Jun 21 06:22:21 1999  Mark Elbrecht <snowball3@bigfoot.com>

        * i386/djgpp.h (LIB_SPEC): New.
        (STARTFILE_SPEC): New.

        * i386/xm-djgpp.h (NO_SYS_SIGLIST): Deleted. Now obsolete.

Mon Jun 21 06:19:33 1999  Philippe De Muyter  <phdm@macqel.be>

        * fixinc/Makefile.in (gnu-regex.o): Do not define STDC_HEADERS in
        compiler flags.

        * system.h (WSTOPSIG): New macro.

Mon Jun 21 05:33:15 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * c-pragma.c (push_alignment): Don't ignore alignments greater than
        4 bytes.
        (insert_pack_attributes): Take into account member natural
        alignment.

        * i386/winnt.c (exports_head): New static variable.
        (i386_pe_record_exported_symbol): New function.
        (i386_pe_asm_file_end): Use.
        * i386/cygwin.h (ASM_OUTPUT_COMMON): Record the exported
        symbols to be emitted at end of assembly.
        (ASM_DECLARE_OBJECT_NAME): Likewise.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.

        * i386/uwin.h (CPP_SPEC): Use -idirafter instead -iprefix and
        -iwithprefix.

Mon Jun 21 04:44:31 1999  Jeffrey A Law  (law@cygnus.com)

        * sparc.h (LEGITIMIZE_RELOAD_ADDRESS): Fix paren error introduced
        in last change.

Sun Jun 20 17:27:20 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (sched_analyze_1): Use free_list instead of
        zapping reg_last_uses directly.
        (sched_analyze_2, sched_analyze_insn): Likewise.
        (sched_analyze): Likewise.  Don't clear reg_last_uses on calls.

Sun Jun 20 16:57:29 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md (movdf_hardfloat32): Use worst case insn length
        attributes for cases 1 and 2.

Sat Jun 19 22:52:55 1999  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (sched_analyze): Mark call-user regs as clobbered
        instead of set.

Sat Jun 19 05:40:07 1999  Philip Blundell <pb@nexus.co.uk>

        * arm.c (arm_reload_in_hi): Invert sense of test on BYTES_BIG_ENDIAN.

Sat Jun 19 05:25:05 1999  Richard Earnshaw (rearnsha@arm.com)

        * arm.h (CONDITIONAL_REGISTER_USAGE): If flag_pic, never use
        PIC_OFFSET_TABLE_REGNUM for general alloaction.
        (INITIAL_ELIMINATION_OFFSET): Count the fact that the PIC register
        must be stacked if it is used for PIC accesses.
        * arm.c (use_return_insn): Handle PIC register specially.
        (output_return_instruction): Likewise.
        (output_func_{prologue,epilogue}): Likewise.
        (output_expand_prologue): Likewise.

        * arm.md (*adddf_esfdf_df): Renamed from *adddf_df_esfdf.
        (*strsi_predec): Renamed from *strqi_predec.
        (*loadsi_shiftpreinc): Renamed from *loadqi_shiftpreinc.
        (*loadsi_shiftpredec): Renamed from *loadqi_shiftpredec.

        * arm.c (arm_override_options): Remove warning about PIC code
        not being supported.

Fri Jun 18 23:47:06 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (find_addr_reg): New function.
        * rs6000.h (find_addr_reg): Declare.
        (offsettable_addr_operand): Delete.
        * rs6000.md (movdf_hardfloat32): Handle non-offsettable loads
        from and stores to GPRs.

Fri Jun 18 15:44:18 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (alpha_expand_block_move): Use get_insns rather than
        gen_sequence as argument to emit_no_conflict_block.

Fri Jun 18 07:02 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        * fixinc/mkfixinc.sh: enable the fixincl program for DG/UX
        * fixinc/inclhack.def(dgux_int_varargs): script must end with \n
        *fixinc/fixincl.x: regen
        *fixinc/inclhack.sh: regen

Thu Jun 17 15:06:10 PDT 1999 Don Lindsay  <dlindsay@cygnus.com>

        * added support for -mpcrel (PC relative addressing for m68k)
        based on code done by Michael Tiemann  <tiemann@axon.cygnus.com>.
        * invoke.texi (m68000 options): Add documentation for -mpcrel flag.
        * m68k.c (print_operand_address): Handle 32-bit PIC case.
        (comments for general_src_operand): Add some explanation
        about EXTRA_CONSTRAINTS.
        (OVERRIDE_OPTIONS): Enable -fPIC in combination with -mpcrel.
        * m68kelf.h (OVERRIDE_OPTIONS): Ditto.
        (LEGITIMATE_PIC_OPERAND_P): Fix typo.
        (LEGITIMATE_PIC_OPERAND_P): Re-derive from m68k.h case.
        * m68k.h (LEGITIMATE_PIC_OPERAND_P): Fix delete-o.
        (INDIRECTABLE_1_ADDRESS): Delete spurious '/' at end of macro.
        (OVERRIDE_OPTIONS): Change behavior so that -mpcrel implies -fpic
        if not already set.
        (OVERRIDE_OPTIONS): Merge in changes from m68k.h.
        * m68k.h (TARGET_PCREL): New target flag.
        (TARGET_SWITCHES): Add "pcrel" as a recognized switch.
        (OVERRIDE_OPTIONS): Add checks for -mpcrel.
        (LEGITIMATE_PIC_OPERAND_P): Don't normally accept anything that
        contains a SYMBOL_REF.  Relax this constraint during reload, since
        we want to use the predicates, not reload's built-in concept of a
        valid memory address, to control what insns need reloading.
        (EXTRA_CONSTRAINT): Define constraints to accept pc-relative
        operands (essentially 'g', 'm', and 's' under normal circumstances).
        * m68k.c (print_operand): Cause printing of pc-relative addresses
        to include pc register.
        (print_operand_address): Ditto.
        (general_src_operand): Accept operands that are not only
        general_operands, but are also valid when used as a pc-relative
        source.
        (nonimmediate_src_operand): Similar, for nonimmediate_operands.
        (memory_src_operand): Similar, for memory_operands.
        (pcrel_address): New predicate to accept the special case of a
        pc-relative address.
        * m68k.md (many patterns): Rewrite common SImode, HImode, and
        QImode insns to accept *_src_operand instead of *_operand where
        pc-relative operands can fit.  For example, a pc-relative operand
        can be used as a memory source operand for addsi3, but not as a
        memory destination.
        * hp320.h linux.h m68kv4.h (LEGITIMATE_PIC_OPERAND_P) as in m68k.h.

Fri Jun 18 09:11:07 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/telf.h (ASM_OUTPUT_DEF_FROM_DECLS): New Marco: USe
        .thumb_set pseudo op to mark aliases of thumb functions.

Wed Jun 16 18:19:13 1999  Nick Clifton  <nickc@cygnus.com>

        * varasm.c (assemble_alias): Use ASM_OUTPUT_DEF_FROM_DECLS in
        preference to ASM_OUTPUT_DEF, if it is defined.

        * tm.texi: Document new, optional target macro
        ASM_OUTPUT_DEF_FROM_DECLS.

Thu Jun 17 15:07 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        * fixincludes: ISCNTL patch
        * fixinc/inclhack.def (ioctl_fix_ctrl): Fix the definition of [_]*ISCTRL().
        (dgux_int_varargs): new for DG/UX
        * fixinc/{fixincl.x,inclhack.sh}: Regenerated.

Thu Jun 17 21:34:24 1999  Jeff Law <law@cygnus.com>

        * invoke.texi (ia32 options): Fix typo.

Thu Jun 17 21:34:24 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): When doing biv->giv conversion, update
        reg note of NEXT->insn.

Thu Jun 17 14:25:08 1999  Jeffrey A Law  (law@cygnus.com)

        * loop.c (move_movables): Note issues with replacing REGs with
        SUBREGs.
        * mips.h (GO_IF_LEGITIMATE_ADDRESS): Handle SUBREGs properly.

Thu Jun 17 13:28:30 1999  David O'Brien <obrien@FreeBSD.org>

        * i386/freebsd-elf.h (LINK_SPEC): Fix typo.

        * i386/freebsd-elf.h (FUNCTION_PROFILER): labels are not needed and
        the reference to `mcount' was not correct for the ELF on FreeBSD.

Thu Jun 17 17:22:07 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): When doing biv->giv conversion, fix up
        reg_biv_class.

        (recombine_givs): Set ix field after sorting.

Thu Jun 17 02:54:30 1999  Jeffrey A Law  (law@cygnus.com)

        * emit-rtl.c (operand_subword): Tighten checks for when it is safe
        to safe to extract a subword out of a REG.

Thu Jun 17 01:45:24 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (mulsi3): Don't add a no-op move at the end.

Wed Jun 16 20:29:00 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * cse.c (cse_insn): Don't put hard register source into tables for
        the last insn of a libcall.

Wed Jun 16 19:44:33 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): Insert sets of derived givs at every
        biv increment, even if it's the only one.

Wed Jun 16 10:33:02 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarfout.c (add_incomplete_type): New fn.
        (output_type): Call it.
        (retry_incomplete_types): New fn.
        (dwarfout_finish): Call it.

        From Eric Raskin <ehr@listworks.com>:
        (output_type): Output types for bases.

Tue Jun 15 12:51:23 1999  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * mips.c (mips_output_conditional_branch): Add `break'
        between `default' label and `close braces'.

Tue Jun 15 01:55:20 1999  David O'Brien <obrien@FreeBSD.org>

        * i386/freebsd-elf.h (LINK_SPEC): clean up the linking library
        specifications and make it realistic.
        (LIB_SPEC): Likewise.

Mon Jun 14 15:38:43 1999  Jim Wilson  <wilson@cygnus.com>

        * config/mips/mips.c (mips_secondary_reload_class): Check for
        (PLUS (SP) (REG)) and return appropriate register class.
        * config/mips/mips.md (reload_insi): Delete predicate for operand 1.
        Handle (PLUS (SP) (REG)).
        (tablejump): In mips16 code, use emit_insn instead of emit_jump_insn.
        (tablejump_mips161, tablejump_mips162): Use emit_jump_insn instead
        of emit_insn for tablejump.

Mon Jun 14 17:26:40 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (output_prolog): RS6000_CALL_GLUE must be
        asm_fprintf format string by itself.
        (output_function_profiler): Likewise.

Mon Jun 14 12:57:38 1999  David Mosberger  <davidm@hpl.hp.com>

        * combine.c (simplify_logical, case AND): Only call
        simplify_and_const_int if the mode is no wider than HOST_WIDE_INT
        or the constant is positive.

Mon Jun 14 11:43:41 1999  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Fix typo in rs6000-ibm-aix4 case.
        * configure: Regenerate.

Mon Jun 14 03:55:40 1999  Jeffrey A Law  (law@cygnus.com)

        * configure.in (rs6000-ibm-aix4.3*, powerpc-ibm-aix4.3*): Do not
        require a sub-version #.
        * configure: Rebuilt.

1999-06-14  Robert Lipe  (robertlipe@usa.net)

        * svr4.h (DWARF2_DEBUGGING_INFO): Check for redefinition.

Mon Jun 14 10:30:52 BST 1999  Nathan Sidwell  <nathan@acm.org>

        * c-typeck.c (process_init_element): Detect excess elements in
        char array initializer.

1999-06-14  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

        * gcc.texi: Mention gcc 2.96 instead of egcs 1.00.

Sat Jun 12 22:29:48 EDT 1999  Jerry Quinn <jquinn@nortelnetworks.com>

        * invoke.texi (Option Summary): Add -fpermissive flag.

Sat Jun 12 03:40:42 1999  Jeffrey A Law  (law@cygnus.com)

        * sparc.h (LEGITIMIZE_RELOAD_ADDRESS): Do nothing with operands
        that require PIC code sequences.

Wed Jun  9 16:29:01 1999  Nick Clifton  <nickc@cygnus.com>

        * configure.in: Add new target: thumb-elf.
        * configure: Regenerate.
        * config/arm/t-thumb-elf: New file: Makefile fragment for
        thumb-elf build.
        * config/arm/telf.h: New file: Header file for thumb-elf
        build.

Fri Jun 11 03:17:51 1999  Jeffrey A Law  (law@cygnus.com)

        * Makefile.in (libgcc2): Pass MAYBE_USE_COLLECT2 as an argument.
        * libgcc2.c (__CTOR_LIST, __DTOR_LIST); Do not provide
        initializers is some circumstances.

        * fixinc/inclhack.def (endif_label): Add additional selector for
        more bogus stuff after #endif statements.
        * fixinc/inclhack.sh, fixinc/fixincl.x: Rebuilt.

Thu Jun 10 20:44:36 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin.h (SET_ASM_OP): Define.

Thu Jun 10 20:37:57 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * reg-stack.c (stack_reg_life_analysis): Find all the RETURN insns.

Thu Jun 10 19:23:00 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (TARGET_HARWARD, TARGET_HARVARD): Changed the former to the
        latter.

        * sh.md (ic_invalidate_line_i): Remove second alternative.

Thu Jun 10 06:55 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        *fixinc/inclhack.def(sun_auth_proto): We do not know how to
        test for the presence of valid prototypes.  Delete bypass expr.
        (ioctl_fix_ctrl): Correct the selection expression.
        (no_double_slash): Correct quoting rules
        *fixinc/fixincl.x: regen
        *fixinc/inclhack.sh: regen

Thu Jun 10 15:08:15 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (struct all_cores): Add ARM920 and ARM920t.

Wed Jun  9 15:57:57 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.md (movsi_got_internal_mem): Delete.
        * rs6000.h (CONDITIONAL_REGISTER_USAGE): Mark PIC_OFFSET_TABLE_REGNUM.
        (GOT_TOC_REGNUM): Delete.
        (PIC_OFFSET_TABLE_REGNUM): Define.
        (FINALIZE_PIC): Disable.
        * rs6000.c (rs6000_got_register): New code for fixed pic register.
        (rs6000_replace_regno): Delete.
        (rs6000_finalize_pic): Likewise.
        (output_prolog): Handle PIC_OFFSET_TABLE_REGNUM.

Wed Jun  9 19:44:26 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (loop_insn_first_p): Don't compare LUIDs when P
        is a note; use <= for the compare; advance P while it is
        a NOTE.

Wed Jun  9 13:12:24 1999  Jeffrey A Law  (law@cygnus.com)

        * fixinc/inclhack.def (no_double_slash): Fix quoting for test.
        * fixinc/inclhack.sh, fixinc/fixincl.x, fixinc/fixincl.sh; Rebuilt.

        * varasm.c (remove_from_pending_weak_list): Verify t->name
        is non-NULL before passing it to strcmp.

Wed Jun  9 06:50 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        *fixinc/inclhack.def(sun_auth_proto): bypass the patch if
        the typed arguments are not part of a comment
        (ioctl_fix_ctrl): Added a purpose comment
        *fixinc/fixincl.x: regenerate
        *fixinc/inclhack.sh: regenerate

Wed Jun  9 22:57:02 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * invoke.texi: Add C4x invocation docs.

Wed Jun  9 22:34:38 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (TARGET_EXPOSE_LDP, LEGITIMIZE_RELOAD_ADDRESS):
        Define new macros.
        * config/c4x/c4x.c (c4x_emit_move_sequence, src_operand): Use
        TARGET_EXPOSE_LDP.
        (c4x_legitimize_reload_address): New function.
        * config/c4x/c4x.md: Update docs.

Wed Jun  9 04:14:48 1999  Jeffrey A Law  (law@cygnus.com)

        * fixincludes: Avoid removing '.'.
        * fixinc/fixinc.svr4: Likewise.
        * fixinc/fixinc.winnt: Likewise.
        * fixinc/inclhack.tpl: Likewise.
        * fixinc/fixincl.sh, fixinc/inclhack.sh: Rebuilt.

1999-06-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/inclhack.def (sun_catmacro): Escape parens in the select
        pattern.
        * fixinc/fixincl.x, fixinc/inclhack.sh: Rebuilt.

Wed Jun  9 03:10:34 1999  Mumit Khan  <khan@xraylith.wisc.edu>

        * c-pragma.c (handle_pragma_token): Handle `#pragma pack()'
        correctly.

Tue Jun  8 13:06:15 1999  Jim Wilson  <wilson@cygnus.com>

        * configure.in (rs6000-ibm-aix4.[12]*): Change rx6000 to rs6000.
        * configure: Regenerate.

Tue Jun  8 05:47:48 1999  Richard Earnshaw (rearnsha@arm.com)

        * optabs.c (expand_cmplxdiv_wide): Use expand_abs to get the absolute
        values.

Mon Jun  7 22:30:37 1999  Jeffrey A Law  (law@cygnus.com)

        * fixinc/inclhack.def (avoid_bool): Also catch
        "typedef [unsigned] int bool".
        * fixinc/inclhack.sh, fixinc/fixincl.x, fixinc/fixincl.sh: Rebuilt.

        * m68k/x-hp3bsd44: Delete obsolete and incorrect file.
        * configure.in (m68k-hp-bsd4.4): No longer use x-hp3bsd44.
        * configure: Rebuilt.

Mon Jun  7 22:05:03 1999  Mark Kettenis  <kettenis@gnu.org>

        * config/i386/gnu.h: Include <gnu.h> right after <i386/linux.h>,
        such that we can override its definitions if necessary.
        (CPP_SPEC): New define.  Support processor specific predefines via
        %(cpp_cpu).
        (CC1_SPEC): New define.  Support processor specific compiler
        options via %(cc1_cpu).
        (STARTFILE_SPEC): New define.  Use crt0.o instead of crt1.o for
        -static.

1999-06-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/inclhack.def (math_gcc_ifndefs): Insert whitespace
        between sed's -e flag, and the open-quote following it.
        * fixinc/fixincl.x, fixinc/fixincl.sh: Rebuilt.

Mon Jun  7 20:34:20 1999  Robert Lipe <robertlipe@usa.net>
                          Jeffrey A Law  (law@cygnus.com)

        * varasm.c (assemble_start_function): Remove the function
        from the pending weak decls list when we define a function.
        (assemble_variable): Similarly for variables.
        (weak_finish): Ignore items on the list with a NULL name.
        (remove_from_ending_weak_list); New function to "remove" an item
        from the pending weak declarations list.

Mon Jun  7 19:27:07 1999  Jerry Quinn <jquinn@nortelnetworks.com>

        * pa.md (fmpyfadd, fmpynfadd, fnegabs): New patterns.

Mon Jun  7 14:07:39 1999  Dave Brolley  <brolley@cygnus.com>

        * c-lex.c (GETC): Redefine to call getch.
        (UNGETC): Redefine to call put_back.
        (putback_buffer): New structure type.
        (putback): New static structure.
        (getch): New function.
        (put_back): New function.
        (yylex): Replace unused bytes from bad multibyte character.

Mon Jun  7 13:33:39 1999  Dave Brolley  <brolley@cygnus.com>

        * cpplib.c (do_define): Cast `alloca' return value.
        (do_include, do_undef, do_pragma): Likewise.
        * cpphash.c (dump_definition): Cast `xstrdup' and `alloca' return
        values.
        * cppfiles.c (initialize_input_buffer): Cast `xmalloc' return values.
        * gcc/cppspec.c (lang_specific_driver): Cast xmalloc return value.

Sun Jun  6 11:58:34 1999  Jakub Jelinek  <jj@ultra.linux.cz>

        * sparc.md (abstf2): This should be an expand.
        (split after abstf2_notv9): Fix mode.
        (abstf2_hq_v9): New pattern.
        (abstf2_v9): Only use when no hard quad.
        (absdf2_v9): Fix if target is not the same as source.
        (ashrsi3_extend, ashrsi3_extend2, lshrsi3_extend, lshrsi3_extend2):
        Add correct output constraints.

Sat Jun  5 17:04:16 1999  Craig Burley  <craig@jcb-sc.com>

        From Dave Love to egcs-patches on 20 May 1999 17:38:38 +0100:
        * invoke.texi: Clarify text vis-a-vis Intel CPUs.

Sat Jun  5 12:11:24 1999  Mark Mitchell  <mark@codesourcery.com>

        * mips.h (mips_output_conditional_branch): New function.
        (mips_adjust_insn_length): Likewise.
        (ASSEMBLER_SCRATCH_REGNUM): New macro.
        (ADJUST_INSN_LENGTH): Likewise.
        * mips.c (print_operand): Add `F' and `W' for floating-point
        comparison opcodes.
        (machine_dependent_reorg): Adjust MIPS16 code; instruction-lengths
        are now in bytes.
        (mips_adjust_insn_length): New function.
        (mips_output_conditional_branch): New function.
        * mips.md (length): Adjust attribute definition to handle
        conditional branches.  Change lengths to bytes, rather than
        instructions throughout.  Remove length attribute from
        instructions whose length is four bytes, and rely on the default
        instead.
        (dslot): Fix typo in comment.
        Reword conditional branch patterns to use
        mips_output_conditional_branch.

Fri Jun  4 13:30:27 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * alpha/osf.h (CPP_SUBTARGET_SPEC): Handle -threads.
        (LIB_SPEC): Likewise.
        Link with -lprof1_r for -g/-pg.

1999-06-04  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * loop.c (check_dbra_loop): Fix change of Jan 19.

Fri Jun  4 00:12:40 1999  Marc Espie <espie@cvs.openbsd.org>

        * freebsd-elf.h (SWITCH_TAKES_ARG):  Redefine, not define.
        (STARTFILE_SPEC):  Define, override the svr4.h version.
        (ENDFILE_SPEC):  Likewise.

Thu Jun  3 23:58:55 1999  Jeffrey A Law  (law@cygnus.com)

        * fixinc/inclhack.def (limits_ifndefs): Also apply to sys/limits.h
        * fixinc/fixincl.x: Regenerated.
        * fixinc/inclhack.sh: Regenerated.

Fri Jun  4 05:42:23 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (barrier_align): Don't return early for normal branch/barrier
        when optimizing for SH2.

Thu Jun  3 22:27:50 1999  Robert Lipe  <robertlipe@usa.net>

        * i386/udk.h (LINK_SPEC): Correct linker search path for
        system libraries.

Fri Jun  4 03:20:40 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.c (fixup_addr_diff_vecs): Emit braf reference label.
        (braf_label_ref_operand): Delete.
        * sh.h (PREDICATE_CODES): Remove braf_label_ref_operand.
        * sh.md (casesi_jump_2): Operand1 is now the inside of a
        label_ref, and has no predicate.
        The patten has a predicate to guard against invalid substitutions.
        (dummy_jump): Delete.
        (casesi): Update use of casesi_jump_2.

Thu Jun 3 07:48 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        *fixinc/inclhack.def(Io_Def_Quotes): corrected sed expression
        *fixinc/fixincl.x: regenerate
        *fixinc/inclhack.sh: regenerate

Thu Jun  3 02:15:07 1999  Jason Merrill  <jason@yorick.cygnus.com>

        * dwarf2out.c (add_incomplete_type): New fn.
        (gen_struct_or_union_type_die): Call it.
        (retry_incomplete_types): New fn.
        (dwarf2out_finish): Call it.

Thu Jun  3 01:19:03 1999  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (insert_insn_end_bb): Correct placement of insns when the
        current block starts with a CODE_LABEL and ends with a CALL and
        we can not find all the argument setup instructions for the CALL.

Wed Jun  2 15:44:15 1999  Mark Mitchell <mark@codesourcery.com>

        Revert this change:
        * fold-const.c (fold): STRIP_NOPS when deciding whether or not
        something is a candidate for optimize_bit_field_compare.

Wed Jun  2 21:53:05 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (CONST_OK_FOR_I, CONST_OK_FOR_L): Cast VALUE to HOST_WIDE_INT.

Wed Jun  2 12:25:55 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.c (override_options): Thinko in last patch.

        * alpha/osf.h (CPP_SUBTARGET_SPEC): Define.
        (LIB_SPEC): Recognize -pthread.

Wed Jun  2 08:42:55 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/tcoff.h (USER_LABEL_PREFIX): Synchronise with
        definition in config/arm/coff.h
        * config/arm/coff.h: Add comment about USER_LABEL_PREFIX.

Wed Jun  2 07:07 1999 Bruce Korb <ddsinc09@ix.netcom.com>

        * fixinc/fixincl.c(global def): Add FD_SHELL_SCRIPT to mark
        fixes that need "file=xxx\n" prepended before invocation
        (start_fixer - new): starting the fixer process is complex enough
        to warrent its own routine.  It prepends the "file=xxx\n" stuff.
        (process): uses the new routine; omit usage of putenv()
        * fixinc/fixincl.tpl: mark shell scripts with FD_SHELL_SCRIPT
        * fixinc/fixincl.x: regenerate

Wed Jun  2 02:29:07 1999  Jeffrey A Law  (law@cygnus.com)

        * README, configure.in, gcc.1, gcc.texi: Update name (egcs -> gcc)
        and version #s (1.1 -> 2.96) as needed.
        * README.g77: Kill way out of date file in the toplevel directory.

Wed Jun  2 00:52:34 1999  David O'Brien <obrien@FreeBSD.org>

        * configure.in (i[34567]86-*-freebsdelf): Don't include linux.h,
        i386/freebsd-elf.h no longer requires it.  Instead include svr4.h.
        * configure: Rebuilt.
        * i386/freebsd-elf.h (DEFAULT_VTABLE_THUNKS): Define.
        (ASM_COMMENT_START, ASM_APP_ON, ASM_APP_OFF, SET_ASM_OP): Likewise.
        (PREFERRED_DEBUGGING_TYPE, WCHAR_UNSIGNED): Likewise.
        (SWITCH_TAKES_ARG): Likewise.
        * i386/freebsd.h: Remove FREEBSD_NATIVE support.
        * config/t-freebsd: Moved from config/i386/ so it can used for all
        FreeBSD targets.

Mon May 31 02:22:55 1999  Philippe De Muyter  <phdm@macqel.be>

        * m68k/x-mot3300 (XCFLAGS): Fixed to match stb.o, not f/stb.o.

Wed Jun  2 00:08:34 1999  Robert Lipe  <robertlipe@usa.net>

        * configure.in (i[34567]86-*-udk*): Install headers with cpio.
        * configure: Rebuilt.

Tue Jun  1 19:06:22 1999  David Edelsohn  <edelsohn@gnu.org>

        * rs6000/aix41.h (RS6000_CALL_GLUE): Define.
        * rs6000/aix43.h (RS6000_CALL_GLUE): Likewise.
        * rs6000/rs6000.c (rs6000_file_start): Use putc.
        (rs6000_output_load_toc_table): Same.
        (output_prolog, output_mi_thunk): Same.
        * rs6000/rs6000.h (SELECT_SECTION): Formatting.
        (ASM_GLOBALIZE_LABEL): Use putc.

Mon May 31 15:23:23 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.md (reload_*_help): New patterns and splitters.
        (reload_*): Use them.
        (mov[qh]i): Likewise.

Mon May 31 11:48:07 1999  Mark Mitchell  <mark@codesourcery.com>

        * cccp.c (handle_directive): Handle backslash-newlines in quoted
        strings correctly.

Mon May 31 09:36:11 1999  Cort Dougan  <cort@cs.nmt.edu>

        * rs6000/linux.h (LINK_SPEC): Use emulation elf32ppclinux.

Mon May 31 11:40:20 EDT 1999  John Wehle  (john@feith.com)

        * flow.c (mark_regs_live_at_end, insn_dead_p,
        mark_set_1, mark_used_regs): Only give FRAME_POINTER_REGNUM
        and HARD_FRAME_POINTER_REGNUM special treatment if reload
        hasn't run or the frame pointer is needed.
        * haifa-sched.c (attach_deaths): Likewise.
        * sched.c (attach_deaths): Likewise.

Mon May 31 00:46:17 1999  Jeffrey A Law  (law@cygnus.com)

        * jump.c (jump_optimize_1): Only set CAN_REACH_END if
        calculate_can_reach_end returns nonzero.

        * configure.in (native gas tests): Search for an assembler in the
        same manner that the installed compiler will.
        * configure: Rebuilt.
        * tm.texi (MD_EXEC_PREFIX): Note need to update configure.in too.

        * alias.c (find_base_term): Improve handling of addresses
        constructed from binary operations.

Sun May 30 14:29:17 1999  Eric Raskin (ehr@listworks.com)

        * dgux.h (STARTFILE_SPEC): Fix incorrectly matched curly-braces.

Sun May 30 14:19:13 1999  Jeffrey A Law  (law@cygnus.com)

        * function.h (cleanup_label, frame_offset): Declare.
        (tail_recursion_label, tail_recursion_reentry): Likewise.
        (arg_pointer_save_area, rtl_expr_chain): Likewise.
        * stmt.c (cleanup_label, frame_offset): Delete extern declarations.
        (tail_recursion_label, tail_recursion_reentry): Likewise.
        (arg_pointer_save_area, rtl_expr_chain): Likewise.

Sat May 29 19:08:10 1999  Philip Blundell  <philb@gnu.org>

        * config/arm/aout.h (ASM_OUTPUT_ALIGN): Only define if not already
        defined.
        * config/arm/elf.h (ASM_OUTPUT_ALIGN): Define.
        (MAX_OFILE_ALIGNMENT): Define.

Fri May 28 21:40 1999  Robert Lipe <robertlipe@usa.net>

        * fixincl.c: Replace local include scheme with #includes of
        gansidecl.h and system.h.
        * procopen.c:  Likewise.
        * server.c:  Likewise.

Fri May 28 03:47:03 1999  Eric Raskin (ehr@listworks.com)

        * i386/t-dgux (EXTRA_PARTS): Add crti.o
        (crti.o): Add build rule and dependencies.
        * fixinc/fixinc.dgux:  Use modified _int_varargs.h

Fri May 28 03:41:02 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000/sysv4.h (CC1_SPEC): Add support for -profile
        (LIB_LINUX_SPEC): Likewise.
        (LIB_LINUX_SPEC): Add support for -pthread
        (CPP_OS_LINUX_SPEC): Likewise.
        (CPP_SYSV_SPEC): Avoid redefinitions if both -fpic and -fPIC are
        specified.

Thu May 27 13:04:52 1999  H.J. Lu  (hjl@gnu.org)

        * i386.c (output_fp_cc0_set): Don't check the JUMP_INSN code for
        conditional move.
        (notice_update_cc, output_float_compare): Enable TARGET_CMOVE support.
        (output_float_compare, output_fp_cc0_set): Fix the FLOAT comparison
        for IEEE math and CC_FCOMI.
        (put_jump_code): No IEEE if CC_FCOMI is set.

1999-05-27  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * fold-const.c (fold_truthop): Make the field reference unsigned
        when converting a single bit compare.

Thu May 27 02:40:48 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (strength_reduce): Don't do biv->giv conversion on constants.

Thu May 27 02:09:27 1999  Jeffrey A Law  (law@cygnus.com)

        * varasm.c (STRIP_NAME_ENCODING): Remove default definition.
        * output.h (STRIP_NAME_ENCODING): Strip '*' like the old varasm
        version did.

        * reload.c (push_reload): Do not call remove_address_replacements
        when presented with identical optional reloads.

Wed May 26 14:18:05 1999  Richard Henderson  <rth@cygnus.com>

        * alpha.h (MASK_FIX, TARGET_FIX): New.
        (MASK_*): Reorganize constants.
        (CPP_AM_FIX_SPEC): New.
        (TARGET_SWITCHES): Add FIX.
        (EXTRA_SPECS): Likewise.
        (CPP_CPU_EV6_SPEC): Use FIX, not CIX.
        (SECONDARY_MEMORY_NEEDED): Likewise.
        (REGISTER_MOVE_COST): Likewise.
        * alpha.c (override_options): Add FIX support.  Always use
        ALPHA_TP_PROG for ev6.
        * alpha.md (sqrt and mov[sd]i patterns): Use FIX, not CIX.
        * alpha/elf.h (ASM_FILE_START): Look at FIX too.
        * configure.in (target_cpu_default2) [ev6]: Use FIX, not CIX.

Wed May 26 09:53:05 1999  Mark Mitchell  <mark@codesourcery.com>

        * fold-const.c (fold): STRIP_NOPS when deciding whether or not
        something is a candidate for optimize_bit_field_compare.

Wed May 26 09:40:02 1999  Mark Mitchell  <mark@codesourcery.com>

        * gcc.texi (Passes): Document branch-shortening.
        * invoke.texi (Debugging Options): Document the fact that `-dp'
        outputs length information for instructions.

Wed May 26 08:49:31 1999  Nick Clifton  <nickc@cygnus.com>

        * flow.c: Revert previous delta.

Wed May 26 06:05:10 1999  Nick Clifton  <nickc@cygnus.com>

        * flow.c (insn_dead_p): Check against frame_pointer_rtx not
        FRAME_POINTER_REGNUM.
        (mark_set_1): Ditto.
        (mark_used_regs): Ditto.

Wed May 26 02:19:31 1999  Philip Blundell  <pb@nexus.co.uk>

        * arm.h (NEED_PLT_GOT): Fix mistake in last change.
        (GOT_PCREL): New macro.  Define to 1 if not already defined.
        * arm/elf.h (GOT_PCREL): Define to 0.
        * arm.c (arm_finalize_pic): Take into account the setting of
        GOT_PCREL.

Tue May 25 14:06:06 1999  Jeffrey A Law  (law@cygnus.com)

        * output.h (STRIP_NAME_ENCODING): Provide default definition.
        * dwarf2out.c (ASM_NAME_TO_STRING): Use STRIP_NAME_ENCODING.

        * flow.c (mark_set_1): Do not record BLKmode stores as dead
        store elimination candidates.

Tue May 25 08:55:57 1999  Gavin Romig-Koch  <gavin@cygnus.com>

        * config/mips/mips.h (ASM_OUTPUT_DOUBLE_INT) : Use 'dword' if
        TARGET_GAS.

Mon May 24 20:30:08 1999  Jim Wilson  <wilson@cygnus.com>

        * configure.in (rs6000-ibm-aix4.[12]*): Delete use of aix41-gld.h.
        Add use of x-aix41-gld.

Mon May 24 16:44:09 1999  Jakub Jelinek  <jj@ultra.linux.cz>

        * sparc/linux64.h (ASM_OUTPUT_CONSTRUCTOR): Define.
        (ASM_OUTPUT_DESTRUCTOR): Define.

Mon May 24 14:35:24 1999  Jeffrey A Law  (law@cygnus.com)

        * loop.c (strength_reduce): Do not clear NOT_EVERY_ITERATION at the
        last CODE_LABEL in a loop if we have previously passed a jump
        to the top of the loop.

Mon May 24 07:56:29 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (OUTPUT_INT_ADDR_CONST): Fix blunder made when
        applying Philip's patch.

Mon May 24 01:02:12 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_end_bindings): Ignore any elements of VARS that
        are not VAR_DECLs.

Sun May 23 20:31:16 1999  Jeffrey A Law  (law@cygnus.com)

        * loop.c (strength_reduce): Grow reg_single_usage as needed.

Sun May 23 10:13:20 1999  David O'Brien <obrien@FreeBSD.org>

        * i386/freebsd-elf.h (LINK_SPEC): Change -static to -Bstatic.
        Also remove a useless comment.

Sun May 23 10:05:23 1999  Jerry Quinn <jquinn@nortelnetworks.com>

        * pa.md (negdf2,negsf2):  Use fneg instead of fsub on pa 2.0.

Sat May 22 21:02:06 1999  David Edelsohn  <edelsohn@gnu.org>

        * collect2.c (main): Only generate import or export file and add
        to link arguments if non-empty.  Use xmalloc not alloca.
        (write_{export,import}_file): Delete.
        (write_aix_file): New function.
        (locatelib): Use xmalloc not malloc.
        (GCC_OK_SYMBOL): Do not check type if aix64.

Sat May 22 09:35:51 1999  Philip Blundell  <pb@nexus.co.uk>

        Based on patch by Scott Bambrough and Pat Beirne:
        * config/arm/arm.c (making_const_table): New variable.
        * config/arm/arm.h (making_const_table): Declare.
        (OUTPUT_INT_ADDR_CONST): Mark symbols as position independent if
        appropriate.
        * config/arm/arm.md (consttable_4, consttable_8, consttable_end):
        Keep track of when we are building the constant table.

Sat May 22 09:34:22 1999  Philip Blundell  <pb@nexus.co.uk>

        * config/arm/arm.c (arm_override_options): Fix erroneous warning
        message.

Sat May 22 09:06:33 1999  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.h (NEED_PLT_GOT): Only define if not already
        defined.

Sat May 22 07:17:05 1999  Nick Clifton  <nickc@cygnus.com>

        * tm.texi (FUNCTION_ARG): Correct description of a stack element
        in a PARALLEL.

Sat May 22 01:27:49 1999  Mark Mitchell  <mark@codesourcery.com>

        * expr.h (lang_expand_constant): Guard with #ifdef TREE_CODE.

Fri May 21 21:19:02 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (output_mi_thunk): Enable full support again.

Fri May 21 20:09:52 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (BRANCH_COST): Define.

Thu May 20 10:00:42 1999  Stephen L Moshier  <moshier@world.std.com>

        * Makefile.in (GCC_FOR_TARGET): Add -I$(build_tooldir)/include.

Thu May 20 09:58:57 1999  Jan Hubicka <hubicka@freesoft.cz>

        * function.c (assign_stack_local): Align stack slot propertly.
        (assign_outer_stack_local): Likewise.

Thu May 20 10:38:43 1999  Mark Mitchell  <mark@codesourcery.com>

        * expr.h (lang_expand_constant): Declare.
        * toplev.c (lang_expand_constant): Define it.
        * varasm.c (output_constant): Use it.

Thu May 20 11:28:53 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * optabs.c (expand_cmplxdiv_straight, expand_cmplxdiv_wide):
        Change function definitions to K&R style.

Thu May 20 08:16:39 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        * fixinc/fixincl.c: We must not ignore SIGCLD now.

Thu May 20 07:06:39 1999  Alexandre Oliva  <aoliva@acm.org>

        * fixinc/Makefile.in(gnu-regex.o): add $(INCLUDES) to compile options
        * fixinc/fixincl.c(wait_for_pid): K&R-ify arguments
        (several places): omit static initialization
        (process): use single fd, since only the read fd is used
        * fixinc/gnu-regex.c: define 'const' away, if not supported
        * fixinc/procopen.c(several places): omit static initialization
        * fixinc/server.c: define 'volitile' away, if not supported

1999-05-20  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

        * config/dbxcoff.h (DBX_OUTPUT_MAIN_SOURCE_FILE_END): Use
        asm_fprintf and %L to generate the label name.
        * config/dbxelf.h (DBX_OUTPUT_MAIN_SOURCE_FILE_END): Likewise.
        (ASM_OUTPUT_SOURCE_LINE): Correct generation of internal labels.

Thu May 20 01:40:55 1999  Jeffrey A Law  (law@cygnus.com)

        * jump.c (can_reverse_comparison_p): Do not abort if the comparison
        insn for a conditional jump can not be found.

Wed May 19 23:58:58 1999  Jeffrey A Law  (law@cygnus.com)

        * mips.h (ENCODE_SECTION_INFO): Do not perform GP optimizations
        on variables in specific sections other than .sbss and .sdata.

Wed May 19 03:56:56 1999  Mark Mitchell  <mark@codesourcery.com>

        * stmt.c (expand_return): Call start_cleanup_deferral and
        end_cleanup_deferral around conditional code.

Wed May 19 08:40:08 1999  Bruce Korb <ddsinc09@ix.netcom.com>

        * fixinc/fixincl.tpl: Avoid depending on ANSI C features for
        filename lists.  Utilizes new "krstr" AutoGen function.
        * fixinc/fixincl.x: Rebuilt.

Wed May 19 02:47:11 1999  Jan Hubicka  (hubicka@freesoft.cz)

        * i386.c (output_float_compare): Avoid GNU-C extensions.

Wed May 19 00:34:40 1999  Jeffrey A Law  (law@cygnus.com)

        * version.c: Bump to distinguish mainline tree from the
        gcc-2.95 branch.

See ChangeLog.1 for earlier changes.