* config/i386/i386.c (ix86_expand_branch): Treat GE and GEU the same

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

2000-08-25  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_expand_branch): Treat GE and GEU the same
        way as LT and LTU when the second operand has 0 in low word.

2000-08-26  Michael Hayes  <mhayes@cygnus.com>

        * basic-block.h (struct loop): Rename `exits' field to
        `exit_edges'.  Add `entry_edges' and `num_entries' fields.

        * flow.c (flow_loop_exit_edges_find): Rename from flow_loop_exits_find.
        (flow_loop_entry_edges_find): Add.
        (flow_edge_list_print): Rename from flow_exits_print.
        (flow_loops_find): Call flow_loop_entry_edges_find.
        (flow_loop_dump): Dump entry_edges list.
        (flow_loops_free): Free entry_edges.
        
2000-08-26  Michael Hayes  <mhayes@cygnus.com>
        
        * loop.c (loop_dump_aux, debug_loop): New functions.
        (LOOP_BLOCK_NUM_1, LOOP_BLOCK_NUM, LOOP_INSN_UID): New macros.

        * flow.c (flow_loops_dump): Add callback parameter.
        (flow_loop_dump): Add callback parameter and call it.  Move
        loop note debugging code to loop_dump_aux.

        * basic-block.h (flow_loop_dump): Add callback parameter
        (flow_loops_dump): Likewise.

        * toplev.c (rest_of_compilation): Add NULL callback function pointer
        to call to flow_loops_dump.
        
2000-08-26  Michael Hayes  <mhayes@cygnus.com>

        * loop.c (count_loop_regs_set): Replace start and end arguments
        with loop argument.  All callers udated.
        
2000-08-26  Michael Hayes  <mhayes@cygnus.com>
        
        * loop.c (constant_high_bytes): Delete.

2000-08-26  Michael Hayes  <mhayes@cygnus.com>

        * loop.c (prescan_loop): Move checks for NOTE_INSN_LOOP_CONT
        and NOTE_INSN_LOOP_VTOP to...
        (find_and_verify_loops) ...here.

Fri Aug 25 04:21:13 2000  Alexandre Oliva  <aoliva@redhat.com>

        * crtstuff.c (CRT_CALL_STATIC_FUNCTION): Define default.
        (fini_dummy, init_dummy): Use it.

Fri 25-Aug-2000 08:03:27 BST  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (is_macro_disabled): Caller has already checked
        that we're not a preprocessed file.

2000-08-24  Mark Mitchell  <mark@codesourcery.com>

        * Makefile.in (C_AND_OBJC_OBJS): Remove c-iterate.o.
        (c-iterate.o): Remove target.
        * gcc/c-common.h (enum rid): Remove RID_ITERATOR.
        * gcc/c-decl.c (init_decl_processing): Remove call to init_iterators.
        (finish_decl): Don't handle iterators.
        (grokdeclarator): Likewise.
        * gcc/c-parse.gperf: Remove __iterator and __iterator__ keywords.
        * gcc/c-gperf.h: Regenerated.
        * gcc/c-iterate.c: Removed.
        * gcc/c-lex.c (init_lex): Don't handle iterators.
        * gcc/c-parse.in (primary): Remove pop_iterator_stack call.
        (compstmt_primary_start): Remove push_iterator_stack call.
        (stmt): Don't allow iterator statements.  Replace iterator_expand
        with expand_expr_stmt.
        (all_iter_stmt): Remove.
        (all_iter_stmt_simple): Likewise.
        (all_iter_stmt_with_decl): Likewise.
        * gcc/c-tree.h (ITERATOR_P): Remove.
        (ITERATOR_BOUND_P): Likewise.
        (init_iterators): Remove declaration.
        (iterator_expand): Likewise.
        (iterator_for_loop_start): Likewise.
        (iterator_for_loop_end): Likewise.
        (iterator_for_loop_record): Likewise.
        (push_iterator_stack): Likewise.
        (pop_iterator_stack): Likewise.
        * gcc/c-typeck.c (decl_constant_value): Don't check ITERATOR_P.
        (readonly_warning): Likewise.
        * gcc/tree.h (ITERATOR_BOUND_P): Don't mention it.
                
2000-08-24  Jim Wilson  <wilson@cygnus.com>

        * c-common.c (decl_attributes, case A_ALIGN): Revert last change.
        Copy type in a TYPE_DECL, just like pushdecl does.

2000-08-24  Richard Henderson  <rth@cygnus.com>

        * toplev.c (main): Enable flag_reorder_blocks at -O2.

2000-08-24  Zack Weinberg  <zack@wolery.cumb.org>

        * ggc-page.c (alloc_page): If HAVE_MMAP_ANYWHERE and we're  
        asked for one page, allocate GGC_QUIRE_SIZE of them and put
        the extras on the free list.
        (release_pages): Clean up.
        (ggc_set_mark): Don't adjust G.allocated here...
        (sweep_pages): ... do it here.

2000-08-24  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c (read_include_file): Rearrange initializations.

2000-08-24  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_asm_operands): Treat EXTRA_CONSTRAINT like g or X.

        * config/ia64/ia64-protos.h: Update.
        * config/ia64/ia64.c (gr_register_operand): New.
        (fr_register_operand, grfr_register_operand): New.
        (gr_nonimmediate_operand, grfr_nonimmediate_operand): New.
        (grfr_reg_or_8bit_operand): New.
        (gr_reg_or_0_operand): Rename from reg_or_0_operand and 
        use gr_register_operand.
        (gr_reg_or_5bit_operand, gr_reg_or_6bit_operand): Likewise.
        (gr_reg_or_8bit_operand, gr_reg_or_8bit_adjusted_operand): Likewise.
        (gr_reg_or_8bit_and_adjusted_operand): Likewise.
        (gr_reg_or_14bit_operand, gr_reg_or_22bit_operand): Likewise.
        (fr_reg_or_fp01_operand): Likewise.
        (not_postinc_memory_operand): New.
        (ia64_split_timode): Remove unused variables.
        (rtx_needs_barrier): Check arguments to cmpxchg.
        (builtin_description): Remove.
        (bdesc_2argsi, bdesc_2argdi): Remove.
        (ia64_init_builtins): Declare all builtins directly.
        (ia64_expand_fetch_and_op): Rewrite to be called from
        ia64_expand_builtin directly.  Use expand_binop and co.
        (ia64_expand_op_and_fetch): Likewise.
        (ia64_expand_compare_and_swap): Likewise.
        (ia64_expand_binop_builtin): Remove.
        (ia64_expand_lock_test_and_set): New.
        (ia64_expand_lock_release): New.
        (ia64_expand_builtin): Use them.
        * config/ia64/ia64.h (CONSTRAINT_OK_FOR_S): New.
        (EXTRA_CONSTRAINT): Use it.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md (*): Use gr_register_operand and co.
        (mf): Indicate that we set memory as well as use it.
        (fetchadd_acq_si): Show memory being modified as well.
        (fetchadd_acq_di, cmpxchg_acq_si, cmpxchg_acq_di): Likewise. 
        (val_compare_and_swap_si, val_compare_and_swap_di): Remove.
        (lock_test_and_set_si, lock_test_and_set_di): Remove.
        (fetch_and_add_si, fetch_and_sub_si, fetch_and_or_si): Remove.
        (fetch_and_and_si, fetch_and_xor_si, fetch_and_nand_si): Remove.
        (fetch_and_add_di, fetch_and_sub_di, fetch_and_or_di): Remove.
        (fetch_and_and_di, fetch_and_xor_di, fetch_and_nand_di): Remove.
        (add_and_fetch_di, sub_and_fetch_di, or_and_fetch_di): Remove.
        (and_and_fetch_di, xor_and_fetch_di, nand_and_fetch_di): Remove.
        (add_and_fetch_si, sub_and_fetch_si, or_and_fetch_si): Remove.
        (and_and_fetch_si, xor_and_fetch_si, nand_and_fetch_si): Remove.
        * config/ia64/ia64intrin.h (*): Cast result to the appropriate
        return type.  Pretty print definitions.

2000-08-24  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.md (movdi): Don't call gen_movdi_symbolic if
        we have a SYMBOL_REF with SYMBOL_REF_FLAG set.

2000-08-24  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (AT_flag, AT_int, AT_unsigned, AT_string, AT_ref,
        AT_loc, AT_addr, AT_lbl): Abort on unsuitable input.
        (get_AT_low_pc, get_AT_hi_pc, get_AT_string, get_AT_flag, 
        get_AT_unsigned, get_AT_ref): Don't call them if get_AT fails.

2000-08-24  Greg McGary  <greg@mcgary.org>

        * optabs.c (init_optabs): Initialize fixtab, fixtrunctab, floattab,
        and extendtab within their proper array boundaries.
        * emit-rtl.c (init_emit_once): Pass `const_tiny_rtx' with bounds
        for the entire array.

        * config/arm/arm.c (arm_override_options): Use ARRAY_SIZE.
        * config/alpha/alpha.c (alpha_lookup_xfloating_lib_func): Likewise.
        * config/avr/avr.c (order_regs_for_local_alloc): Likewise.
        * config/fr30/fr30.c (fr30_print_operand): Likewise.
        * config/i386/dgux.c (output_options): Likewise.
        * config/i386/dgux.h (ASM_FILE_START): Likewise.
        * config/m88k/m88k.c (output_options): Likewise.
        * config/m88k/m88k.h (ASM_FILE_START): Likewise.
        * config/mcore/mcore.c (mcore_output_inline_const_forced,
        layout_mcore_frame, handle_structs_in_regs): Likewise.
        * config/mips/mips.c (output_block_move): Likewise.
        * config/rs6000/rs6000.c (rs6000_override_options,
        rs6000_file_start): Likewise.
        * config/sparc/sparc.c (sparc_add_gc_roots): Likewise.
        * fixinc/fixfixes.c (FIX_TABLE_CT): Likewise.
        * fixinc/fixtests.c (TEST_TABLE_CT): Likewise.
        * builtins.c (expand_builtin_setjmp): Likewise.
        * expr.c (safe_from_p): Likewise.
        * flow.c (life_analysis): Likewise.
        * fold-const.c (size_int_type_wide): Likewise.
        * gcc.c (translate_options, init_spec, set_spec, main): Likewise.
        * genattrtab.c (make_length_attrs): Likewise.
        * genopinit.c (gen_insn): Likewise.
        * genrecog.c (NUM_KNOWN_PREDS, NUM_SPECIAL_MODE_PREDS): Likewise.
        * global.c (global_alloc): Likewise.
        * local-alloc.c (find_free_reg): Likewise.
        * mips-tdump.c (print_symbol): Likewise.
        * mips-tfile.c (parse_def, parse_input): Likewise.
        * reload1.c (NUM_ELIMINABLE_REGS): Likewise.
        * stmt.c (expand_nl_goto_receiver): Likewise.
        * stor-layout.c (set_sizetype): Likewise.
        * varasm.c (decode_reg_name): Likewise.
        * toplev.c (decode_f_option, decode_W_option,
        set_target_switch, print_switch_values): Likewise.
        (NUM_ELEM): Remove macro.
        (display_help, main): s/NUM_ELEM/ARRAY_SIZE/

2000-08-24  Greg McGary  <greg@mcgary.org>

        * tree.h (enum tree_index): New member `TI_MAIN_IDENTIFIER'.
        (MAIN_NAME_P, main_identifier_node): New macros.
        * c-common.c (c_common_nodes_and_builtins): Init main_identifier_node.
        * c-decl.c (start_decl, grokdeclarator, start_function,
        store_parm_decls, finish_function): Use MAIN_NAME_P.
        * config/avr/avr.c (function_prologue, function_epilogue): Likewise.
        * config/i386/cygwin.h (SUBTARGET_PROLOGUE): Likewise.
        * config/i386/win32.h (SUBTARGET_PROLOGUE): Likewise.
        * config/pdp11/pdp11.c (output_function_prologue): Likewise.

2000-08-24  Greg McGary  <greg@mcgary.org>

        * cppfiles.c (actual_directory): Don't write beyond `dir'
        when it contains "".
        * real.c (asctoeg): Stay within bounds of etens[][].

2000-08-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dependence.c (dependence_string, direction_string,
        dump_one_node, dump_node_dependence): Hide unused identifiers.
        (get_low_bound, normalize_coefficients): Match definition to
        static prototype.
        (get_one_coefficient): Initialize variables `value0_is_idx' and
        `value1_is_idx'.
        (ziv_test, gcd_test): Mark parameters with ATTRIBUTE_UNUSED.
        (ziv_test): Delete variable `idx', use parameter `sub' instead.
        (direction_merge): Avoid automatic aggregate initialization.
        (have_dependence_p): Use `src' not `dest' to set `src_idx'.
        Initialize variables `dest_idx' and `src_idx'.
        (end_dependence_analysis): Avoid C89 style function definition.

2000-08-24  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (time_char_table): Don't allow width with %F.
        (check_format_info): Don't allow "Z" length with scanf.

2000-08-24  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (finish_diagnostic): Define.
        (output_do_printf): Use wrap_text instead of output_add_string.
        (default_print_error_function): Avoid embedded '\n'.

        * diagnostic.h (flush_diagnostic_buffer): Declare.

2000-08-23  Alexandre Oliva  <aoliva@redhat.com>

        * dependence.c: Replace `[][]' with `[][MAX_SUBSCRIPTS]'.

2000-08-23  Hans-Peter Nilsson  <hp@axis.com>

        * Makefile.in (GCC_PASSES): Add specs.

2000-08-23  Jim Wilson  <wilson@cygnus.com>

        * frame.h (IA64_UNW_EHANDLER, IA64_UNW_UHANDLER): New.
        * config/ia64/frame-ia64.c (__get_personality): Return zero if neither
        EHANDLER nor UHANDLER bit is set.
        (__get_except_table): Likewise.

2000-08-23  Nick Clifton  <nickc@redhat.com>

        * config/arm/lib1funcs.asm: Replace upper case condition codes
        with lower case versions.

        * config/arm/arm.h (STRUCT_VALUE): Define.
        (STRUCT_VALUE_REGNUM): Delete.

2000-08-23  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.h (IN_I): New flag for directive table.
        * cpplib.c (DIRECTIVE_TABLE): Mark #define, #undef, #ident, and
        #pragma with IN_I.
        (_cpp_check_directive): If -fpreprocessed, execute directives
        marked with IN_I.  Issue no warnings in this case.
        * cpplex.c (_cpp_get_token): Expand no macros if -fpreprocessed.

2000-08-23  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (print_char_table): Allow 'I' flag with %d, %i and
        %u.
        (check_format_info): Support printf 'I' flag; warn about it with
        -pedantic.

2000-08-23  Richard Earnshaw  (rearnsha@arm.com)

        * arm.c (arm_expand_prologue): Ensure that the stack-adjustment
        barrier can't be ignored by the alias analysis code.

2000-08-12  Eli Zaretskii  <eliz@is.elta.co.il>

        * fixinc/inclhack.def (sysv68_string): Fix the Sed script so it
        works inside fixincl.

Wed Aug 23 04:55:48 2000  Alexandre Oliva  <aoliva@redhat.com>

        * simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to
        simplify_relational_operation() unless both operands are of
        VOIDmode.
        * cse.c (fold_rtx): Likewise.

Tue Aug 22 23:53:27 EDT 2000  John Wehle  (john@feith.com)

        * rtlanal.c (rtx_unstable_p): The pic register is stable
        (within one function) and the actual rtx should be used
        when checking the registers.
        (rtx_addr_can_trap_p): Pic memory addresses can't trap.

        * alias.c (true_dependence, write_dependence_p): Fix
        bug in previous patch.

        * i386.c (ix86_GOT_alias_set): New.
        (legitimize_pic_address): Use it.

        * rtlanal.c (rtx_unstable_p): An unchanging MEM is
        only stable if its address is stable.
        (rtx_varies_p): An unchanging MEM can't vary if
        its address doesn't vary.

2000-08-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (unop +): Restrict -Wtraditional warnings to user code.

2000-08-22  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * vax.h (ASM_SPEC): Pass `-J' to assembler.
        * x-vax-gcc: New file for bootstrapping with gcc.
        * x-vax: Use X_CFLAGS rather than X_CPPFLAGS to pass `-J'.
        * configure.in: Use x-vax-gcc with gcc.
        * configure: Rebuilt.

Tue Aug 22 21:21:05 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * toplev.c (rest_of_compilation): Rebuild label notes after
        post-reload splitting pass if new labels have been created.

2000-08-22  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.h (output_buffer_state): New macro.
        * diagnostic.c (diagnostic_for_decl, sorry,
        default_print_error_function, output_do_verbatim,
        report_diagnostic, report_problematic_module): Use it.
        (wrap_text): Tweak.
        (output_format): Use wrap_text instead of maybe_wrap_text.

2000-08-22  Nick Clifton  <nickc@redhat.com>

        * config/arm/lib1funcs.asm (ARM_DIV_MOD_BODY): New macro.
        Common code for ARM divide and modulus functions.
        (THUMB_DIV_MOD_BODY): New macro. Thumb equivalent of
        ARM_DIV_MOD_BODY.
        (FUNC_END): New macro: Common code at the end of the division and
        modulo functions.
        (THUMB_FUNCTION_START): New macro:  Common code at the start of
        Thumb functions.
        (__divsi3, __udivsi3, __modsi3, __umodsi3): Use new macros.
        
Tue Aug 22 20:34:52 2000  Kaz Kojima <kkojima@rr.iij4u.or.jp>

        * config/sh/sh.md (cmpeqdi_t splitter): Fix a reverse testing.

        * config/sh/sh.c (prepare_scc_operands): Apply force_reg to
        sh_compare_op1 when the mode is DImode and sh_compare_op1 isn't
        const0_rtx.

2000-08-22  Nick Clifton  <nickc@redhat.com>

        * config/arm/lib1funcs.asm (__umodsi3): Before performing any
        restorative additions, test for bottom bits of IP being set,
        rather than relying upon the RORs not matching.
        (__modsi3): Ditto.

2000-08-22  David Edelsohn  <edelsohn@gnu.org>

        * aix.h (ASM_DECLARE_FUNCTION_NAME): Call named_section() or
        text_section() as appropriate instead of emitting text csect
        pseudo-op directly.
        (TEXT_SECTION_ASM_OP): Only require default 32-bit alignment.
        (UNIQUE_SECTION): Define macro.
        (ASM_OUTPUT_SECTION_NAME): Define macro.
        * rs6000.c (rs6000_override_options): Disable -ffunction-sections
        on AIX if debugging and -fdata-sections always.

2000-08-22  Steven King  <sxking@uswest.net>

        * config/float-i386.h (LDBL_EPSILON): Remove __convert_long_double
        machinery.
        (LDBL_MAX): Same here.

2000-08-22  Richard Henderson  <rth@cygnus.com>

        * flow.c (tidy_fallthru_edge): Update b->end properly.

2000-08-22  Stan Cox  <scox@redhat.com>

        * Makefile.in (OBJS): Add dependence.o.
        * dependence.c: New file.
        
2000-08-22  Alexandre Oliva  <aoliva@redhat.com>, John David Anglin  <dave.anglin@nrc.ca>

        * calls.c (check_sibcall_argument_overlap_1): Adjust for
        ARGS_GROW_DOWNWARD.
        (check_sibcall_argument_overlap): Likewise.

2000-08-22  Alexandre Oliva  <aoliva@redhat.com>

        * invoke.texi (SH Options): Document -m4-nofpu,
        -m4-single-only, -m4-single, -m4, -mbigtable, -mfmovd,
        -mhitachi, -mnomacsave, -misize, -mpadstruct, -mspace.

2000-08-22  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (check_format_info): Give the 'some locales' warning
        for strftime %Ey rather than the unconditional 'only last 2 digits
        of year' one.

2000-08-22  Richard Henderson  <rth@cygnus.com>

        * alias.c (init_alias_analysis): Do not register
        struct_value_incoming_rtx or static_chain_rtx as pointing
        to stack memory.

Tue Aug 22 01:44:43 2000  Jeffrey A Law  (law@cygnus.com)

        * protoize.c (munge_compile_params): Fix typo and formatting buglets.

2000-08-22  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.h (report_problematic_module): Declare.
        * diagnostic.c (report_problematic_module): New function.
        (report_error_function): Tweak.

Tue Aug 22 02:31:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stmt.c (expand_goto_internal, fixup_gotos): Only check
        TYPE_RETURNS_STACK_DEPRESSED for FUNCTION_TYPE.

2000-08-21  Richard Henderson  <rth@cygnus.com>

        * flow.c (calculate_global_regs_live): Mark frame pointer live
        everywhere before reload.

2000-08-21  Jim Wilson  <wilson@cygnus.com>

        * real.c (ereal_from_int, ereal_from_uint, significand_size): Handle
        INTEL_EXTENDED_IEEE_FORMAT.
        (toe64): Delete INTEL_EXTENDED_IEEE_FORMAT support.  Unconditionally
        clear last two bytes of output FP value.

2000-08-21  Graham Stott  <grahams@cygnus.co.uk>

        * config/ia64/ia64.h (REDO_SECTION_INFO_P): Change decl to DECL.

2000-08-21  Jakub Jelinek  <jakub@redhat.com>

        * unroll.c (loop_find_equiv_value): If ret is modified between
        insn and loop_start, ret might not be equivalent to reg.

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (init_dollar_format_checking,
        maybe_read_dollar_number, finish_dollar_format_checking): New
        functions.
        (dollar_arguments_used, dollar_arguments_count,
        dollar_first_arg_num, dollar_max_arg_used, dollar_format_warned):
        New variables.
        (check_format_info): Support $ formats for scanf and printf width
        and precision.  Always increment format_chars to advance past the
        '*' of precision, not just when the format parameters are
        available to check.

2000-08-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.c (block_move_loop, expand_block_move,
        function_arg_partial_nregs, save_restore_insns, function_prologue,
        mips_expand_prologue, RA_MASK): Avoid using the `U' integer
        constant suffix.
        (function_arg_advance, function_arg): Match argument to format
        specifier `%p'.

2000-08-21  Nix  <nix@esperi.demon.co.uk>

        * gcc.c (do_spec_1): Implement %j spec flag.
        Remove dead comment.

        * gcc.texi (The Configuration File): Document HOST_BIT_BUCKET.
        * system.h (HOST_BIT_BUCKET): Default to "/dev/null".
        * config/i386/xm-dos.h (HOST_BIT_BUCKET): Define as "NUL".
        * config/i386/xm-os2.h, config/winnt/winnt.h: Likewise.

        * protoize.c (munge_compile_params): Use HOST_BIT_BUCKET (if
        writable) instead of hardcoded value.

        * toplev.c (compile_file): Output to a file even if -fsyntax-only.

        * gcc.c, config/i386/xm-dos.h, config/i386/xm-os2.h: Kill
        MKTEMP_EACH_FILE.

        * gcc.c (cc1_options): Do not process -o or run the assembler if
        -fsyntax-only.
        * objc/lang-spec.h: Likewise.

2000-08-21  Eli Zaretskii  <eliz@is.elta.co.il>

        * fixinc/fixincl.c (fix_with_system): Pipe the output of
        "external" fixes through `cat', to avoid truncating the input
        file by redirection.

2000-08-21  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (lea_general_1): Copy insn condition to split
        condition.
        (lea_general_2, lea_general_3): Likewise.

2000-08-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-decl.c (duplicate_decls, define_label): Restrict -Wtraditional
        warnings to user code.

        * c-lex.c (readescape, yylex): Likewise.

        * c-typeck.c (store_init_value, process_init_element): Likewise
        (c_expand_start_case): Format.

2000-08-18  Maciej W. Rozycki  <macro@ds2.pg.gda.pl>

        * mips/linux.h (LINK_SPEC): Use %(endian_spec).

        * mips/mips.h: Change LINKER_ENDIAN_SPEC to ENDIAN_SPEC
        and linker_endian_spec to endian_spec. 
        (ENDIAN_SPEC): Add %{EB} and %{EL}.
        (LINK_SPEC): Remove %{EB} and %{EL}.
        (ASM_SPEC): Likewise.  Use %(endian_spec). 

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-tree.h (flag_hosted): Move declaration from here...
        * c-common.h (flag_hosted): ... to here.
        (flag_noniso_default_format_attributes): New declaration.
        * c-decl.c (flag_noniso_default_format_attributes): New variable.
        (c_decode_option): Set it appropriately for options choosing
        language standard variant.
        * c-common.c (init_function_format_info): Only provide default
        format attributes if flag_hosted.  Only provide the gettext
        formats if flag_noniso_default_format_attributes.  Update
        comments.
        (check_format_info): Disable treatment of %a as a scanf flag in
        C99 mode.

2000-08-21  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (scan_char_table): Add 'w' to flags for all formats
        except 'n'.
        (check_format_info): Set 'wide' for scanf format widths.  Warn for
        a zero scanf width.  Make the check for writing into a constant
        object at the first level of indirection; at later levels, warn if
        any type qualifiers are encountered.

Mon Aug 21 07:41:12 2000  Jeffrey A Law  (law@cygnus.com)

        * reload.c (reload_inner_reg_of_subreg): New function broken out of
        push_reload.
        (push_reload): Use reload_inner_reg_of_subreg.
        (combine_reloads): Do not combine reloads if the input reload
        is a SUBREG in which the inner part will need reloading.

        * global.c (global_alloc): Avoid passing dumpfile argument to
        reload routines.
        * toplev.c (rest_of_compilation): Likewise.
        * reload.h (reload): Remove dumpfile argument.  Callers changed.
        (debug_reload, debug_reload_to_stream): Move prototypes here.
        * rtl.h  (reload): Remove dumpfile argument.
        * reload.c (debug_reload): Remove prototype.
        (debug_reload_to_stream): Likewise.
        * reload1.c: Avoid passing dumpfile around, rely on rtl_dump_file
        instead.

2000-08-21  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>

        * diagnostic.c (context_as_prefix): Export.
        (need_error_newline): Remove.
        (lang_diagnostic_starter, lang_diagnostic_finalizer): New objects.
        (error_module_changed, record_last_error_module,
        error_function_changed, record_last_error_function): New functions.
        (initialize_diagnostics): Default intialize
        lang_diagnostic_starter, lang_diagnostic_finalizer.
        (init_output_buffer): Tweak.
        (file_name_as_prefix): New function.
        (announce_function, default_print_error_function,
        report_error_function, set_diagnostic_context): Tweak.

2000-08-21  Richard Earnshaw  <rearnsha@arm.com>

        * flow.c (init_propagate_block_info): Handle SUBREG in a jump
        condition expression.

2000-08-20  Richard Henderson  <rth@cygnus.com>

        * flow.c (merge_blocks_nomove): Don't seek back past the bb note.

2000-08-20  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c (cpp_init): Set global flag when called.
        (cpp_reader_init): Bomb out if cpp_init hasn't been called.

Sun Aug 20 01:41:35 2000  Dennis Chernoivanov  <cdi@sparc.spb.su>

        * cpplex.c (cpp_scan_buffer): Move `output_line_command' just
        before `process_directive' so that newlines won't be missed
        for directives.
        (cpp_printf): Increment `print->lineno' when newline is emitted.

        * cppmain.c (cb_ident): Likewise.
        (cb_define): Likewise.
        (cb_undef): Likewise.
        (cb_include): Likewise.
        (cb_def_pragma): Likewise.
        (dump_macros_helper): Likewise.

2000-08-20  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (emit_insn_group_barriers): Stop if ar.lc
        assigned before a loop.

        * config/ia64/ia64.md (ashlsi3): Zero extend the shift count.
        (ashrsi3, lshrsi3): Likewise.

2000-08-20  Gabriel Dos Reis  <gdr@codesourcery.com>

        * c-lang.c: #include diagnostic.h
        (c_tree_printer): New function.
        (lang_init): Initialize lang_printer.

        * Makefile.in (c-lang.o): Depends on diagnostic.h

2000-08-20  Gabriel Dos Reis  <gdr@codesourcery.com>

        * c-errors.c (pedwarn_c99): Adjust call to report_diagnostic.

        * diagnostic.c (default_diagnostic_starter,
        default_diagnostic_finalizer): New functions.
        (diagnostic_for_asm, diagnostic_for_decl): Tweak.
        (pedwarn, pedwarn_with_file_and_line, error,
        error_with_file_and_line, fatal, warning,
        warning_with_file_and_line): Adjust call to report_diagnostic.
        (report_diagnostic): Rework.
        (set_diagnostic_context): New function.

        * diagnostic.h (struct diagnostic_context): New data structure.
        (diagnostic_message, diagnostic_argument_list,
        diagnostic_file_location, diagnostic_line_location,
        diagnostic_is_warning, diagnostic_starter, diagnostic_finalizer,
        diagnostic_finalizer, diagnostic_auxiliary_data): New macros.
        (set_diagnostic_context): Declare.
        (report_diagnostic): Change prototype.

Sun 20-Aug-2000 09:25:45 BST  Neil Booth  <NeilB@earthling.net>

        * fix-header.c (main): Initialize cpplib.

2000-08-19  Michael Meissner  <meissner@redhat.com>

        * ifcvt.c (find_if_block): Do not assume that a THEN block has any
        instructions in it before checking for indirect jumps.

        * ifcvt.c (find_if_block): Do not consider a THEN block that ends
        in a indirect jump as a potential for conditional execution.

        * d30v.h (d30v_init_expanders): Don't declare here.
        * d30v-protos.h (d30v_init_expanders): Declare here with a valid
        prototype.

Sat 19-Aug-2000 21:11:45 BST  Neil Booth  <NeilB@earthling.net>

        * cpp.texi: Add @section for assertions.

Sat Aug 19 12:37:08 EDT 2000  John Wehle  (john@feith.com)

        * loop.c (scan_loop): Use CONST_CALL_P instead of
        checking for REG_LIBCALL / REG_RETVAL.

Sat Aug 19 09:18:47 2000  Jeffrey A Law  (law@cygnus.com)

        * reload1.c (reload_as_needed): Accept dumpfile argument,
        pass it to emit_reload_insns.
        (emit_reload_insns): Add new dumpfile argument.  If non-null
        then dump the reloads for each insn into the dumpfile.
        (reload): Pass dumpfile to reload_as_needed.

        * invoke.texi: Clean up linux-gnu vs linux comments.

2000-08-19  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (reg_or_5bit_operand): New.
        (ia64_depz_field_mask): New.
        * config/ia64/ia64.h (CONSTRAINT_OK_FOR_R): New.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md: Update commentary.
        (depz_internal): New.
        (ashlsi3): Implement directly.
        (ashrsi3, lshrsi3): Simplify; rely on extv and extzv for constants.
        (ashldi3): Use shladd.
        * config/ia64/ia64-protos.h: Update.

2000-08-18  Zack Weinberg  <zack@wolery.cumb.org>

        * toplev.c (independent_decode_option): Always process -g.
        Remove third argument, now unused.  Adjust caller to match.

2000-08-18  Richard Henderson  <rth@cygnus.com>

        * combine.c (make_compound_operation): Break after creating
        the extraction.

2000-08-18  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (cpp_register_pragma_space): Just return if the
        namespace is already registered.

2000-08-18  Ray Essick <essick@ddna.labs.mot.com> & Nick Clifton  <nickc@redhat.com>

        * config/mcore/mcore.md (rotlsi3): Allow allow rotations by a
        constant amount.  Do not generate ROTL instruction.

Fri Aug 18 16:22:20 2000  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/elf.h: Do not include sh/sh.h.
        * config/sh/rtems.h: Likewise.
        * config/sh/rtemself.h: Do not include sh/elf.h.
        * configure.in: Get them included with `tm_file's.
        * configure: Rebuilt.

        * config/sh/sh.md (fpu_switch0, fpu_switch1): Simplify.
        * config/sh/sh.c (fpscr_set_from_mem): Use them.

Fri Aug 18 14:23:18 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * stor-layout.c (compute_record_type): Don't use mode of single
        field as mode of record if not integer mode of same type.

        * regmove.c (perhaps_ends_bb_p): New function.
        (optimize_reg_copy_1, optimize_reg_copy_2): Call it.
        (optimize_reg_copy_3, fixup_match_2, regmove_optimize): Likewise.
        (fixup_match_1): Likewise.
        (fixup_match_1, combine_stack_adjustments_for_block): Add casts to
        avoid signed/unsigned warnings.
        
        * function.c (fixup_var_refs_1, case MEM): Update CODE after
        updating X.

Fri 18-Aug-2000 18:33:45 BST  Neil Booth  <NeilB@earthling.net>

        * cpphash.h: Use HAVE_DESIGNATED_INITIALIZERS.
        (_cpp_trigraph_map): Declaration moved from cpplex.c

        * cppinit.c: Define _cpp_trigraph_map.  Use UCHAR_MAX + 1
        instead of 256.  Use consistent test for designated initializers.
        (cpp_init): Initialize trigraph_map.
        (initialize_standard_includes, parse_option):  Use memcmp
        instead of strncmp.

        * cpplex.c (init_trigraph_map): Remove.
        (trigraph_ok, trigraph_replace, lex_line): Refer to
        _cpp_trigraph_map.

        * cpplib.c (str_match, WARNING, ERROR, ICE): Delete.
        (do_unassert): Remove unused "next" local.

        * system.h (HAVE_DESIGNATED_INITIALIZERS): New prototype.

2000-08-18  Emmanuel Marty  <emarty@suntech.fr>

        * arm/lib1funcs.asm (_umodsi3 THUMB VARIANT): Restore deleted return
        insn.

2000-08-17  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (spill_restore_mem): Handle emitting
        the first insn in a sequence.

Thu Aug 17 22:40:05 EDT 2000  John Wehle  (john@feith.com)

        * alias.c (true_dependence, write_dependence_p): A read
        involving a label_ref or the constant pool doesn't create
        a dependency.

        * rtl.h (unchanging): Improve documentation.

2000-08-17  Rodney Brown  <RodneyBrown@mynd.com>

        * cse.c (insert_regs): Remove unused `regno'.

2000-08-17  Neil Booth  <NeilB@earthling.net>

        * (cppinit.c) merge_include_chains: Use remove_dup_dir,
        remove_dup_dirs.  If qtail == brack, remove brack not
        qtail.
        (remove_dup_dir, remove_dup_dirs): New functions.

2000-08-17  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (cpp_cleanup): Free include dir chains.
        * cpplib.c (do_undef): Let _cpp_free_definition make the node void.
        (do_unassert): Free the assert with _cpp_free_definition.
        * cppmacro.c (_cpp_free_definition): Free memory allocated for
        assertions.  Make the node a T_VOID node.

2000-08-17  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (path_include, append_include_chain):
        Remove 2nd parameter (struct cpp_pending *).
        (path_include, initialize_standard_includes, cpp_handle_option):
        Update callers appropriately.
        (cpp_handle_option): Use pend.

2000-08-17  Neil Booth  <NeilB@earthling.net>

        * cppinit.c (sort_options): Remove, put functionality in
        cpp_init.
        (cpp_init): New.
        (initialize_builtins): Free memory.
        (cpp_start_read): Move init_IStable to cpp_init.

        * cpplib.h (cpp_init): New prototype.
        * cppmain.c (main): Call cpp_init.

Thu Aug 17 13:20:32 EDT 2000  John Wehle  (john@feith.com)

        * rtlanal.c (rtx_unstable_p): Use CONSTANT_P.
        (rtx_unstable_p, rtx_varies_p): Process vectors.

2000-08-16  Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/sh/lib1funcs.asm (GLOBAL): Define.  Use for all
        references to GLOBAL symbols.  Use LOCAL where appropriate.

2000-08-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.in (*-ibm-aix4.[12]*): Delete test for gnu ld.  Always
        use t-aix41 when host == target.

2000-08-16  Richard Henderson  <rth@cygnus.com>

        * reload.c (push_secondary_reload): Revert last change.
        If we use a reload_in/out pattern, make the when the same
        as the primary reload.
        (find_reloads): Likewise.

2000-08-16  Manfred Hollstein  <manfredh@redhat.com>

        * configure.in (libstdcxx-v3): Fix test.
        * configure: Regenerate.

Wed Aug 16 08:10:32 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * calls.c (calls_function_1, expand_call): Only test
        TYPE_RETURNS_STACK_DEPRESSED for FUNCTION_TYPE.
        * function.c (thread_prologue_and_epilogue_insns): Likewise.

2000-08-16  Richard Henderson  <rth@cygnus.com>

        * combine.c (simplify_shift_const): Revert previous two
        changes.  If SHIFT_COUNT_TRUNCATED, crop the shift count
        before the main loop.

2000-08-15  Richard Henderson  <rth@cygnus.com>

        * combine.c (simplify_shift_const): Bound shift count when
        combining shifts.

Tue Aug 15 17:33:05 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * calls.c (ECF_SP_DEPRESSED): New macro.
        (calls_function_1): Treat calling sp-depressed function as alloca.
        (emit_call_1): Don't adjust SP if calling sp-depressed function.
        (expand_call): Set ECF_SP_DEPRESSED if TYPE_RETURNS_STACK_DEPRESSED.
        If sp-depressed, ensure block saves and restores SP.
        * fold-const.c (extract_muldiv): Only check TYPE_IS_SIZETYPE
        for INTEGER_TYPE.
        * function.c (keep_stack_depressed): New function.
        (thread_prologue_and_epilogue_insns): Call it.
        * print-tree.c (print_node): Use HOST_WIDE_INT_PRINT_UNSIGNED
        to print DECL_OFFSET_ALIGN.
        Print no-force-blk and transparent-union flags properly.
        * stmt.c (expand_goto_internal): Don't restore stack if last block
        and function returns with sp depressed.
        (fixup_gotos): Likewise.
        (save_stack_pointer): New function, from code in expand_decl.
        (expand_decl): Call new function.
        * tree.h (TYPE_IS_SIZETYPE): Call INTEGER_TYPE_CHECK.
        (TYPE_RETURNS_STACK_DEPRESSED): New macro.
        (save_stack_pointer): New declaration.

        * diagnostic.c (fatal_function): New variable.
        (set_fatal_function): New function.
        (fatal): Call it.
        * diagnostic.h (set_fatal_function): New declaration.

2000-08-15  William Cohen  <wcohen@redhat.com>

        * config/sh/elf.h (DWARF2_DEBUGGING_INFO): Defined.
        (PREFERRED_DEBUGGING_TYPE): Set to dwarf2 info.
        (DWARF2_ASM_LINE_DEBUG_INFO): Defined.

2000-08-15  Richard Henderson  <rth@cygnus.com>

        * flow.c (mark_used_reg): Set reg_cond_reg appropriately.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

        * arm.c (arm_function_ok_for_sibcall): New function.
        * arm.h (FUNCTION_OK_FOR_SIBCALL): Define.
        * arm.md (call expanders): Don't check here for calls that can't
        be sibling calls.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

        * arm.md (splits generating cond_exec): Disable.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

        * arm/linux-elf.h (text_section): Delete declaration.

2000-08-15  Richard Earnshaw <rearnsha@arm.com>

        ARM support for unordered FP operations.
        * arm-protos.h (arm_comparison_operator): Declare.
        * arm.c (arm_comparison_operator): New function.
        (arm_select_cc_mode): Add unordered comparison codes.
        (get_arm_condition_code): Likewise.
        (arm_final_prescan_insn): Can't handle unordered jumps that can't
        be done in one insn.
        * arm.h (PREDICATE_CODES): Add arm_comparison_operator.
        * arm.md (all uses of comparison_operator): Replace with
        arm_comparison_operator.
        (bunordered, bordered, bugt, bunlt, bunge, bunle, buneq, bltgt): New
        expands.
        (arm_buneq, arm_bltgt, arm_buneq_reversed, arm_bltgt_reveresed): New
        patterns.
        
Tue Aug 15 00:36:36 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * gthr-posix.h: Conditionally include <sched.h>; include
        <config.h> from libobjc/.

2000-08-14  Richard Henderson  <rth@cygnus.com>

        * config/i386/i386.c (legitimize_pic_address): Use Pmode
        for all CONSTs.

2000-08-14  Richard Henderson  <rth@cygnus.com>

        * configure.in (ia64-*): Set float_format for i386 long double.

        * real.c (GET_REAL): Treat 128-bit INTEL_EXTENDED_IEEE_FORMAT
        as we would for i386 XFmode.
        (PUT_REAL): Likewise.
        (endian, ereal_atof, real_value_truncate): Likewise.
        (ereal_isneg, toe64, etens, make_nan): Likewise.
        * real.h (REAL_VALUE_TO_TARGET_LONG_DOUBLE): Likewise.

        * config/ia64/ia64-protos.h: Update.
        * config/ia64/ia64.c (general_tfmode_operand): New.
        (destination_tfmode_operand): New.
        (tfreg_or_fp01_operand): New.
        (ia64_split_timode): New.
        (spill_tfmode_operand): New.
        (ia64_expand_prologue): Use TFmode not XFmode.
        (ia64_expand_epilogue): Likewise.
        (ia64_function_arg): Likewise.
        (ia64_function_arg_advance): Likewise.
        (ia64_return_in_memory): Likewise.
        (ia64_function_value): Likewise.
        (ia64_print_operand): Likewise.
        (ia64_register_move_cost): Set GR<->FR to 5.
        (ia64_secondary_reload_class): Get GR for TImode memory op.
        * config/ia64/ia64.h (ROUND_TYPE_SIZE): Remove.
        (ROUND_TYPE_ALIGN): Remove.
        (LONG_DOUBLE_TYPE_SIZE): Set to 128.
        (INTEL_EXTENDED_IEEE_FORMAT): Define.
        (HARD_REGNO_NREGS): Use TFmode, not XFmode.
        (HARD_REGNO_MODE_OK): Likewise.  Disallow TImode in FRs.
        (MODES_TIEABLE_P): Use TFmode, not XFmode.
        (CLASS_MAX_NREGS): Likewise.
        (ASM_OUTPUT_LONG_DOUBLE): Output by 4 byte hunks.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md (movti): New.
        (movti_internal): Use a clobber for memory alternatives.
        (reload_inti, reload_outti): New.
        (movsfcc_astep): Predicate properly.
        (movdfcc_astep): Likewise.
        (movxf): Remove.
        (movtf): New.
        (extendsftf2, extenddftf2): New.
        (trunctfsf2, trunctfdf2): New.
        (floatditf2, fix_trunctfdi2): New.
        (floatunsditf2, fixuns_trunctfdi2): New.
        (addtf3, subtf3, multf3, abstf2): New.
        (negtf2, nabstf2, mintf3, maxtf3): New.
        (maddtf3, msubtf3, nmultf3, nmaddtf3): New.
        (cmptf): New.
        (fr_spill): Use TFmode, not XFmode.
        (fr_restore): Likewise.
        * config/ia64/lib1funcs.asm (__divtf3): New.
        * config/ia64/t-ia64 (LIB1ASMFUNCS): Add it.

2000-08-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cse.c (fold_rtx): Avoid empty body in an if-statement.
        
        * doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
        `U' integer constant suffix.

        * dwarf2out.c (add_subscript_info): Avoid empty body in an
        else-statement.

        * sparc/sol2.h (__enable_execute_stack): Prototype.

2000-08-14  David Edelsohn  <edelsohn@gnu.org>

        * collect2.c: Remove use of AIX import file.

        * longlong.h: Test ARCH_PWR not ARCH_POWER.

        * rs6000.c (print_operand, case 'E'): Add else.

2000-08-14  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (movdi): Delay calling ia64_expand_load_address.
        (movdi_symbolic): New.

2000-08-14  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (ASM_SPEC): Pass -mconstant-gp and -mauto-pic
        to GNU as.  For Intel as, pass -M const_gp and -M no_plabel.
        * config/ia64/linux.h (ASM_SPEC): Pass -mconstant-gp and -mauto-pic
        to GNU as.

2000-08-14  Richard Henderson  <rth@cygnus.com>

        * expr.c (emit_group_load): Don't force constants into registers.
        Special case source already in the correct mode.

2000-08-14  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in: Accept *-*-linux* not just *-*-linux-gnu*.
        * fixinc/inclhack.def: Likewise.
        * fixinc/mkfixinc.sh: Likewise. 
        * configure: Regenerate.
        * fixinc/fixincl.x: Regenerate.
        * install.texi: Document equivalence of linux and linux-gnu.

Mon Aug 14 18:51:44 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * cse.c (insert_regs): Also in REG case: When finding an invalid
        value, and we make a new quantity, make sure that it won't be
        mistaken by for a valid one by mention_regs.

2000-08-13  Ralf Gütlein <ralf.guetlein@aranea.de>

        * h8300.md: Remove obsolete peepholes.

2000-08-13  Kazu Hirata  <kazu@hxi.com>

        * invoke.texi (H8/300 Options): Fix typos.
        * config/h8300.c: Fix formatting.
        * config/h8300.h: Fix comment typos.
        (OVERRIDE_OPTIONS): Fix formatting.

        * function.c: Fix formatting.

        * cse.c: Fix formatting.

2000-08-13  Geoff Keating  <geoffk@cygnus.com>

        * flow.c (attempt_auto_inc): Remove unused variable `bb'.
        (attempt_auto_inc): Suppress parentheses warning.
        * function.c (put_reg_into_stack): Remove unused variable `unsigned_p'.
        * loop.c (load_mems): Remove `u' suffix in two places.
        * config/rs6000/rs6000.c: Remove unnecessary `u' suffixes from
        hex constants.
        * config/rs6000/rs6000.h: Likewise.
        * config/rs6000/sol-c0.c: Prototype some functions.  Remove the
        __eabi dummy routine.
        * config/rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Remove unused
        variable `buf_ptr'.

        * config/rs6000/rs6000.c (rs6000_select_section): Rewrite to
        not put stuff in .sdata unnecessarily.
        (rs6000_unique_section): New function.
        * config/rs6000/rs6000-protos.h: Add rs6000_unique_section.
        * config/rs6000/sysv4.h (UNIQUE_SECTION): Define.

        * c-typeck.c (build_array_ref): Don't complain about non-lvalue
        arrays in C99.  Don't try to look at DECL_REGISTER of a
        COMPONENT_REF.  Don't complain twice about the same error.

        * fixinc/inclhack.def (aix_pthread): New fix.
        (aix_sysmachine): New fix.
        * fixinc/fixincl.x: Regenerate.

        * expr.c (expand_expr): Call convert_modes when turning a large
        multiply into a small one.

2000-08-12  Geoff Keating  <geoffk@cygnus.com>

        * tree.h (DECL_OFFSET_ALIGN): Make the off_align field of
        the tree structure an exponent rather than an explicit alignment
        so it doesn't overflow.
        (SET_DECL_OFFSET_ALIGN): New macro.
        * stor-layout.c (place_union_field): Use SET_DECL_OFFSET_ALIGN
        rather than DECL_OFFSET_ALIGN.
        (place_field): Likewise.
        * expmed.c (store_bit_field): Abort on align==0 to avoid
        antisocial machine behaviour.

2000-08-12  Richard Henderson  <rth@cygnus.com>

        * sibcall.c (uses_addressof): Accept both addressof and
        current_function_internal_arg_pointer inside a mem.
        (optimize_sibling_and_tail_recursive_call): Fail tail recursion
        if current_function_uses_addressof.
        * stmt.c (expand_return): Kill tail recursion and HAVE_return
        optimizations.

2000-08-11  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (addsi3): Remove expander.
        (subsi3, mulsi3, negsi2, one_cmplsi2): Likewise.
        (*addsi3_shladd): New.

2000-08-11  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (do_spill): Pass cfa offset to move expander.
        (do_restore): Likewise.
        (gen_movdi_x, gen_fr_spill_x, gen_fr_restore_x): New.
        (ia64_expand_prologue, ia64_expand_epilogue): Use them.
        (rtx_needs_barrier): Track actual bit manipulation for 
        ar.unat moves, gr_spill, and gr_restore.
        (emit_insn_group_barriers): Special case gr_spill/gr_restore.
        (process_set): Don't handle varargs spills.
        * config/ia64/ia64.md (gr_spill): Accept cfa offset.  Emit
        .mem.offset here instead of in process_set.
        (gr_restore): Likewise.

2000-08-11  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.h (PROMOTE_MODE): Only extend to SImode.

2000-08-11  Mark Elbrecht  <snowball3@bigfoot.com>
 
        * gcc.texi (The Configuration File): Document
        COLLECT2_HOST_INITIALIZATION, GCC_DRIVER_HOST_INITIALIZATION, and
        UPDATE_PATH_HOST_CANONICALIZATION.

2000-08-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (cast_expr): Avoid -Wstrict-prototype warnings for
        unprototyped function pointer casts on integer constants.

2000-08-11 Laurynas Biveinis <lauras@softhome.net>

        * fixproto: Recognize DOS paths with drive letters as absolute paths.

2000-08-11  Nathan Sidwell  <nathan@codesourcery.com>

        * extend.texi (Volatiles): Fix typos.

2000-08-11  Kazu Hirata  <kazu@hxi.com>

        * flow.c: Fix formatting.

2000-08-11  Richard Henderson  <rth@cygnus.com>

        * reload.c (push_secondary_reload): When invoking a reload_{in,out}
        pattern, always allocate a tertiary scratch register.

        * config/alpha/alpha.md (reload_inqi): Use a DImode scratch.
        (reload_inhi): Likewise.

2000-08-11  Richard Henderson  <rth@cygnus.com>

        * function.c (put_reg_into_stack): Allow type to be NULL.
        (schedule_fixup_var_refs): Likewise.
        (gen_mem_addressof): Allow decl to be NULL.
        (put_addressof_into_stack): Likewise.

        * flow.c (merge_blocks_nomove): Be more careful about
        locating the beginning of block A.

        * combine.c (simplify_shift_const): Obey SHIFT_COUNT_TRUNCATED.

Thu Aug 10 22:47:09 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * configure.in:
        * configure:
        * gthr-posix.h:
        * config.in: Reverted the check for <sched.h>.

2000-08-10  Chris Demetriou  <cgd@sibyte.com>

        * mips/elf.h (CTOR_SECTION_NAME, DTOR_SECTION_NAME): New
        macros define the name of CTOR and DTOR sections.
        (CTOR_LIST_BEGIN, CTOR_LIST_END, DTOR_LIST_BEGIN,
        DTOR_LIST_END): Change to use attributes to specify
        sections.
        * mips/elf64.h (CTOR_SECTION_NAME, DTOR_SECTION_NAME,
        (CTOR_LIST_BEGIN, CTOR_LIST_END, DTOR_LIST_BEGIN,
        DTOR_LIST_END): Same as in mips/elf.h.

2000-08-10  Drew Moseley  <dmoseley@redhat.com>

        * config/mn10300/mn10300.h: Added no-crt0 option for explicitly
        disabling just crt0.o.

2000-08-10  Richard Earnshaw <rearnshaw@arm.com> & Nick Clifton  <nickc@cygnus.com>

        * arm.h (CPP_SPEC): Use sub-spec cpp_interwork.
        (CPP_INTERWORK_SPEC, CPP_INTERWORK_DEFAULT_SPEC): New sub-specs.
        (EXTRA_SPECS): Add them.
        * arm/lib1funcs.asm: Support builds for interworking.
        Use macros to eliminate duplicated pieces of code.

2000-08-10  Kazu Hirata  <kazu@hxi.com>

        * h8300.c (expand_a_rotate): New.
        (emit_a_rotate): Likewise.
        (h8300_adjust_insn_length): Add support for the rotate insns.
        * h8300.md (rotlqi3): New.
        (*rotlqi3_1): Likewise.
        (rotlhi3): Likewise.
        (*rotlhi3_1): Likewise.
        (rotlhi3): Likewise.
        (*rotlhi3_1): Likewise.
        * h8300-proto.h: Add prototypes for expand_a_rotate and
        emit_a_rotate.

        * h8300.c: Fix comment typos.
        (dosize): Declare the variable amount as unsigned.
        (get_shift_alg): Fix a comparison between signed and unsigned.
        (emit_a_shift): Likewise.
        (h8300_adjust_insn_length): Simplify the code.

        * c-decl.c: Fix formatting.

2000-08-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-lex.c (parse_float, yylex): For -Wtraditional, issue a
        warning about non-traditional numeric constant suffixes.

        * cppexp.c (parse_number): Likewise.

        * invoke.texi: (-Wtraditional): Document new behavior.

Thu Aug 10 00:11:04 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * gthr-posix.h: Include auto-host.h. Conditionally include
        <sched.h>.
        * configure.in: Check for the <sched.h> header file.
        * config.in: Added define for HAVE_SCHED_H.

2000-08-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-typeck.c (process_init_element): For -Wtraditional, warn about
        initialization of unions.

        * invoke.texi (-Wtraditional): Document new behavior.

2000-08-09  Zack Weinberg  <zack@wolery.cumb.org>

        * configure.in (--enable-c-cpplib): Uncomment.  Use AC_DEFINE
        instead of extra_c_flags.
        (--enable-c-mbchar): Use AC_DEFINE instead of extra_c_flags.
        * configure: Regenerate.
        * config.in: Regenerate.

        * cpperror.c (cpp_type2name): New function.
        * cpplex.c (lex_line): If we issued an error for an invalid
        preprocessing directive, discard that logical line.
        * cpplib.c (do_line): Call a hook function if the current file
        is renamed by #line.
        (do_ident): Pass the contents of the string, not the entire
        token, to the callback function.
        * cpplib.h (CPP_LAST_PUNCTUATOR): New #define.
        (cb.rename_file): New hook function.
        (cb.ident): Adjust prototype.
        (cpp_type2name): Prototype.
        * cppmacro.c (dump_macro_args): Correct precedence lossage.

        * cppmain.c (cb_ident): Update for changed interface.
        (cb_rename_file): New function.
        (main): Set rename callback.

2000-08-09  Alexandre Oliva  <aoliva@redhat.com>

        * caller-save.c (mark_referenced_regs): Mark partially-overwritten
        multi-word registers.

2000-08-08  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (combine_strings, check_format_info): Refer to ISO C
        or ISO C89 instead of ANSI C.
        * c-decl.c (grokdeclarator, xref_tag, finish_struct,
        build_enumerator, do_case): Likewise.
        * c-lex.c (parse_float, yylex): Likewise.
        * c-parse.in: Likewise.
        * c-typeck.c (common_type, build_array_ref, build_binary_op,
        build_unary_op, pedantic_lvalue_warning, build_conditional_expr,
        build_c_cast, convert_for_assignment, set_init_index,
        set_init_label, c_expand_start_case): Likewise.
        * toplev.c (documented_lang_options, display_help): Likewise.

2000-08-08  Kazu Hirata  <kazu@hxi.com>

        * h8300.c: Fix formatting.
        * h8300.h: Likewise.
        * h8300.md: Likewise.
        (movsi_h8300hs): Fix formatting of the resulting assembly code.

        * reload1.c: Fix formatting.

2000-08-08  Rodney Brown  <RodneyBrown@mynd.com>

        * alpha/alpha.c (alpha_emit_xfloating_libcall):
        Use GEN_CALL_VALUE define.
        * alpha/alpha.md (untyped_call): Use GEN_CALL define.
        * clipper/clipper.md (untyped_call): Likewise.
        * dsp16xx/dsp16xx.md (untyped_call): Likewise.
        * fx80/fx80.md (untyped_call): Likewise.
        * mips/mips.md (untyped_call): Likewise.
        * ns32k/ns32k.md (untyped_call): Likewise.
        * pa/pa.md (untyped_call): Likewise.
        * romp/romp.md (untyped_call): Likewise.
        * sparc/sparc.md (untyped_call): Likewise.

2000-08-08  Jason Eckhardt  <jle@cygnus.com>

        * config/i860/i860.c (singlemove_string): Do not generate assembler
        pseudo instructions that must be expanded (that is, with signed
        constants larger than 16 bits).

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

        * flow.c (life_analysis): Only turn off PROP_LOG_LINKS and
        PROP_AUTOINC at -O0.  Don't collect alias info at -O0.
        (init_propagate_block_info): Don't kill memory stores at -O0.
        (mark_set_1, mark_used_regs): Likewise.

2000-08-08  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (optimization_options): Decorate 'level' as
        ATTRIBUTE_UNUSED. 
        (mask64_operand): Remove sign-extend thinko.
        (rldic_operand): New function.
        (load_multiple_operation): regno's are unsigned ints.
        (store_multiple_operation): Likewise.
        (lmw_operation): Likewise.
        (stmw_operation): Likewise.
        (includes_lshift_p): shift_mask is unsigned int.
        (includes_lshift64_p): New function.
        (addrs_ok_for_quad_peep): unsigned int reg1.
        (print_operand): Consistently add "else" after
        output_operand_lossage().
        (print_operand, case 'b'): Fold in case 'W'.
        (print_operand, case 'W'): Print rldic MB value.
        (output_epilogue): Update Objective-C language string.
        (output_toc): unsigned HOST_WIDE_INT low, compare unsigned.
        * rs6000.h (PREDICATE_CODES): Add rldic_operand.
        * rs6000.md (ashldi3): Add rldic instruction.
        (iordi3, xordi3): Remove redundant "else if CONST_DOUBLE".
        (cmpsi_internal2, cmpdi_interal2): Use 'b' output template
        modifier.

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

        * config/ia64/ia64-protos.h: Remove duplicates.  Update
        for massive code rearrangements.
        * config/ia64/ia64.c (ia64_arpfs_regno): Remove.
        (ia64_rp_regno, ia64_fp_regno, ia64_input_regs): Remove.
        (ia64_local_regs, ia64_need_regstk): Remove.
        (ar_ccv_reg_operand): New.
        (ia64_gp_save_reg): New.
        (struct ia64_frame_info): Combine most of the size elements;
        add new gr save elements.
        (find_gr_spill): New.
        (next_scratch_gr_reg): New.
        (mark_reg_gr_used_mask): New.
        (ia64_compute_frame_size): Rewrite.  Allocate special AR regs
        to GR backing store regs when possible.
        (ia64_initial_elimination_offset): New.
        (ia64_rap_fp_offset): Remove.
        (save_restore_insns): Remove.
        (setup_spill_pointers): New.
        (finish_spill_pointers): New.
        (spill_restore_mem): New.
        (do_spill, do_restore): New.
        (ia64_expand_prologue): Rewrite to use them.
        (ia64_expand_epilogue): Likewise.
        (ia64_direct_return): Update for current_frame_info changes.
        (ia64_function_prologue): Simplify .prologue emission.  Emit
        .spill when needed.
        (ia64_setup_incoming_varargs): Don't ever emit rtl.
        (ia64_dbx_register_number): New.
        (ia64_initialize_trampoline): New.
        (ia64_secondary_reload_class): Request GR_REGS for integer
        arithmetic destined for FR_REGS.
        (ia64_init_machine_status): Don't reset return_address_pointer_rtx.
        (ia64_mark_machine_status): Mark ia64_gp_save.
        (rws_access_regno): Rename from rws_access_reg; don't treat
        predicates specially.
        (rws_access_reg): New.  Update all callers.
        (rtx_needs_barrier): Remove dead unspecs.
        (ia64_epilogue_uses): Mark ar.pfs and ar.unat live on exit.
        (ia64_encode_section_info): Silence signed/unsigned warnings.
        (spill_offset, sp_offset, spill_offset_emitted): Remove.
        (tmp_reg, tmp_saved): Remove.
        (process_set): Rewrite to expect complicated bits via 
        REG_FRAME_RELATED_EXPR.
        (ia64_expand_fetch_and_op): Use emit_move_insn; be explicit
        in the use of ar.ccv; never set RTX_UNCHANGING_P.
        (ia64_expand_op_and_fetch): Likewise.
        (ia64_expand_compare_and_swap): Likewise.
        (ia64_expand_builtin): Likewise.
        * config/ia64/ia64.h (AR_UNAT_REGNUM): New.
        (FIRST_PSEUDO_REGISTER): Update.
        (AR_M_REGNO_P): Update.
        (FIXED_REGS): Don't mark three local registers as used.
        (EXTRA_CC_MODES): New.
        (SELECT_CC_MODE): New.
        (HARD_REGNO_NREGS): Allow DImode in p0; handle CCImode.
        (HARD_REGNO_MODE_OK): Disallow CCImode from non-predicates.
        (FRAME_GROWS_DOWNWARD): Unset.
        (STARTING_FRAME_OFFSET): Zero.
        (ELIMINABLE_REGS): Eliminate from the soft to hard frame pointer.
        (INITIAL_ELIMINATION_OFFSET): Defer to out of line function.
        (HARD_FRAME_POINTER_REGNUM): New.
        (CAN_DEBUG_WITHOUT_FP): Define.
        (TRAMPOLINE_TEMPLATE): Remove.
        (TRAMPOLINE_SIZE): Lower to 32.
        (TRAMPOLINE_ALIGNMENT): Lower to 64.
        (INITIALIZE_TRAMPOLINE): Defer to out of line function.
        (PREDICATE_CODES): Update.
        (struct machine_function): Add ia64_gp_save.
        * config/ia64/ia64.md: Purge unused unspecs.
        (movsi patterns): Allow moves to/from AR_M_REGS.
        (movdi patterns): Allow moves to/from p0.
        (call patterns): Move most setjmp hackery to ia64_gp_save_reg.
        (gr_spill, gr_restore): Indicate ar.unat read/written.
        (nonlocal_goto): Don't pass old frame_pointer.
        (nonlocal_goto_receiver): Remove.
        (exception_receiver): New.
        (builtin_setjmp_setup): New.
        (builtin_setjmp_receiver): New.
        * config/ia64/lib1funcs.asm (__ia64_save_stack_nonlocal): Bundle.
        (__ia64_nonlocal_goto): Bundle.  Don't kill r7.
        (__ia64_restore_stack_nonlocal): Likewise.
        (__ia64_trampoline): New.
        * config/ia64/sysv4.h (DBX_REGISTER_NUMBER): Defer to out of line
        function.
        * config/ia64/t-ia64 (LIB1ASMFUNCS): Add __trampoline.

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

        * frame.h (ia64_frame_state): Add my_psp.
        * libgcc2.c (ia64_throw_helper): Add throw_sp argument.
        (__throw): Pass it in.  Don't clobber r7.
        * config/ia64/frame-ia64.c (init_ia64_reg_loc): Mark inline.
        (execute_one_ia64_descriptor) [mem_stack_v]: Sets psp.when
        and nothing to do with sp.
        (normalize_reg_loc): Use frame->my_psp.
        (frame_translate): Handle frame-pointer-less functions.  Set
        spill_base correctly, in absence of being told.
        (__build_ia64_frame_state): New sp argument.  Fill in frame->my_sp.
        (__ia64_backtrace_helper): New sp argument.  Use
        builtin_return_address instead of label addresses.
        (print_record) [mem_stack_v]: No size member.

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

        * regclass.c (choose_hard_reg_mode): Iterate over all CC modes.

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

        * tm.texi (LOCAL_REGNO): Document.
        * flow.c (LOCAL_REGNO, EPILOGUE_USES): Provide default.
        (mark_regs_live_at_end): Don't mark LOCAL_REGNO registers.
        * reload1.c (reload): Likewise when considering nonlocal labels.

        * config/ia64/ia64.h (LOCAL_REGNO): New.
        * config/sparc/sparc.h (LOCAL_REGNO): New.

2000-08-08  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-lex.c (yylex): Don't allow integer suffixes 'LUL', 'Ll', 'lL'.

2000-08-07  Nick Clifton  <nickc@redhat.com>

        * config/mips/mips.c: Fix compile time warning messages.
        * config/mips/mips-protos.h: Add prototype for equality_op.

        * mn10300.h (TARGET_SWITCHES): Document `-mam33'.

2000-08-07  Graham Stott  <grahams@cygnus.co.uk>

        * mn10300.md: Use nonimmediate_operand instead of general_operand
        on output operands.
        
        * mn10300.h (PREFERRED_RELOAD_CLASS): Limit memory reloads.

2000-08-07  Alexandre Oliva  <aoliva@redhat.com>

        * sh.h (EXTRA_CONSTRAINT_Q): Adjust to GNU Coding Standards.
        * sh.c (expand_block_move): Break long lines.
        (expand_ashiftrt, fpscr_set_from_mem): Likewise.
        * sh.md (mulsi3): Likewise.
        (movdi): Adjust spacing.

2000-08-07  Richard Henderson  <rth@cygnus.com>

        * expmed.c (store_bit_field): Don't require MEM_IN_STRUCT_P.
        * expr.c (emit_group_store): Don't set it.

2000-08-07  Kazu Hirata  <kazu@hxi.com>

        * invoke.texi (Options for Debugging Your Program or GCC): Remove
        duplicate entries for 'w' and 'z'.

        * flow.c: Fix a comment typo.

Sun Aug  6 23:47:35 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * c-parse.in: Changed the language string for Objective-C to "GNU
        Objective-C".

Sun Aug  6 11:54:03 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * gthr-posix.h: Integrated Chris Ball's <cball@fmco.com> changes
        to improve the Posix thread support for Objective-C.

2000-08-06  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.h (enum c_tree_index): Add CTI_SIGNED_SIZE_TYPE and
        CTI_UNSIGNED_PTRDIFF_TYPE.
        (signed_size_type_node): Define.
        (unsigned_ptrdiff_type_node): Define.
        * c-decl.c (init_decl_processing): Create the
        signed_size_type_node and unsigned_ptrdiff_type_node types.
        * c-common.c (T_SC): Define.
        (T_SST): Define.
        (T_UPD): Define.
        (print_char_table): Use T_SST for %zd, %zi, %zn.  Use T_UPD for
        %to, %tu, %tx, %tX.  Allow %hhn (T_SC).  Add "c" to the flags for
        %s and %p.
        (scan_char_table): Use T_SC for %hhd, %hhi, %hhn.  Use T_SST for
        %zd, %zi, %zn.  Use T_UPD for %to, %tu, %tx, %tX.  Add "c" to the
        flags for %c, %s and %[.
        (check_format_info): Only allow leniency for signedness of targets
        of character pointers (when pedantic) for formats flagged with
        "c", so for strings but not for %hh formats.  When pedantic, don't
        allow character pointers to substitute for void pointers if a
        second level of indirection is present.

2000-08-06  Kazu Hirata  <kazu@hxi.com>

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

        * h8300.c (dosize): Rearrange code for conciseness.
        (split_adds_subs): Likewise.

        * loop.c: Fix formatting.

        * dwarf2out.c: Fix formatting.

        * tm.texi (FUNCTION_ARG_PARTIAL_NREGS): Fix a typo.

        * expr.c: Fix formatting.

2000-08-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rs6000.c (rs6000_maybe_dead): Prototype.

2000-08-06  Richard Henderson  <rth@cygnus.com>

        * stmt.c (expand_goto): Do virtual_stack_vars_rtx replacement for
        HAVE_nonlocal_goto as well.
        * config/i960/i960.md (nonlocal_goto): Don't do it here.
        * config/pj/pj.md (nonlocal_goto): Likewise.

2000-08-07  Michael Hayes  <mhayes@cygnus.com>

        * loop.c (try_swap_copy_prop): New function.
        (load_mems): Rename copies to load_copies and add new regset
        store_copies.  Check for sets of shadow registers and mark
        in store_copies.   Call try_swap_copy_prop for registers
        marked in store_copies.

Sun Aug  6 00:54:42 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

        * objc/objc-act.c: New command line option -fconstant-string-class
        to allow specifying a user defined constant string class,
        different from NXConstantString.

        * toplev.c: Moved the Objective-C specific options to
        objc/lang-options.h.

        * objc/lang-options.h: Moved the Objective-C specific options from
        toplev.c. Added -fconstant-string-class.

2000-08-05  Chris Demetriou  <cgd@sibyte.com>

        * mips/elf.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
        DTOR_LIST_BEGIN, DTOR_LIST_END): change type of
        __CTOR_LIST__ from func_ptr array to just func_ptr, to
        avoid extra alignment imposed on arrays.
        * mips/elf64.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
        DTOR_LIST_BEGIN, DTOR_LIST_END): Likewise.

        * mips.h: Clean up comments and spacing near MASKs.
        (TARGET_UNIX_ASM): Delete.
        (MASK_MIPS16, MASK_NO_CHECK_ZERO_DIV, MASK_CHECK_RANGE_DIV,
        MASK_UNINIT_CONST_IN_RODATA): Change values to make mask
        values contiguous.

2000-08-05  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (print_char_table): Add entries for the X/Open '
        format flag (print decimals with locale's thousands grouping
        character).  Make %C expect wint_t.
        (check_format_info): If pedantic, warn when the %n$ operand
        number form is used.  Allow for the ' flag; warn about it if
        pedantic.

2000-08-05  Zack Weinberg  <zack@wolery.cumb.org>

        * i386.h (FUNCTION_OK_FOR_SIBCALL):  Not OK if DECL's return
        type is a float mode, cfun->decl's return type is not, and
        TARGET_FLOAT_RETURNS_IN_80387.

2000-08-04  Andreas Schwab  <schwab@suse.de>

        * cppmain.c (cb_def_pragma): Skip the first two tokens from the
        token list, which are always `#' and `pragma'.

2000-08-04  Zack Weinberg  <zack@wolery.cumb.org>

        * tree.c (tree_expr_nonnegative_p): Move to...
        * fold-const.c: ... here.  Also handle BIND_EXPR and RTL_EXPR.
        (rtl_expr_nonnegative_p): New.                                
        * tree.h: Add prototype for rtl_expr_nonnegative_p.

        * real.h (CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH, CONST_DOUBLE_MEM,
        CONST_DOUBLE_CHAIN: Move to...
        * rtl.h: ...here.  Use XCINT/XCEXP.

        * Makefile.in: Remove toplev.o from OBJS.  Add rule to make
        libbackend.a; add libbackend.a to STAGESTUFF.  Add BACKEND
        variable.  Use BACKEND when linking cc1, not OBJS.  Add BACKEND
        to VOL_FILES.

        * objc/Make-lang.in (cc1obj): Link with $(BACKEND).

2000-08-05  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * config/c4x/c4x.md (return_indirect_internal): New.
        * config/c4x/c4x.c (c4x_expand_epilogue): Use it.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (time_char_table): Mark up formats added in C99 and
        make other corrections.  %D and %g were added in C99.  %Og is an
        extension.  %EX is permitted.  %R, %T, %n, %r, %t were added in
        C99.  %e was added in C99.  %Oj is an extension.  %G and %z are in
        C99 rather than GNU extensions, but %OG and %Oz are extensions.
        %h was added in C99.  %C was added in C99.  %OY and %OC are
        extensions.  Add the C99 format %F.
        (check_format_info): If pedantic and not in C99 mode, warn for C99
        formats, %E and %O.

Fri Aug  4 23:01:58 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * function.c (schedule_fixup_var_refs): New function, broken out
        of put_reg_into_stack.
        (put_reg_into_stack): Use it.
        (put_var_into_stack): In CONCAT case, fixup up references for
        components only after fixing up references to the whole concat.

2000-08-04  Rodney Brown  <RodneyBrown@pmsc.com>

        * alias.c (mark_constant_function): Use INSN_P.
        (init_alias_analysis): Likewise.
        * combine.c (combine_instructions): Use INSN_P.
        (can_combine_p): Likewise.
        (try_combine): Likewise.
        (distribute_notes): Likewise.
        (distribute_links): Likewise.
        * cse.c (cse_around_loop): Use INSN_P.
        (invalidate_skipped_block): Likewise.
        (cse_set_around_loop): Likewise.
        (cse_end_of_basic_block): Likewise.
        (delete_trivially_dead_insns): Likewise.
        * emit-rtl.c (unshare_all_rtl_again): Use INSN_P.
        (unshare_all_rtl_1): Likewise.
        (next_cc0_user): Likewise.
        (try_split make_insn_raw): Likewise.
        (remove_unnecessary_notes): Likewise.
        * final.c (shorten_branches): Use INSN_P.
        (leaf_renumber_regs): Likewise.
        (leaf_renumber_regs_insn): Likewise.
        * flow.c (find_label_refs): Use INSN_P.
        (verify_wide_reg): Likewise.
        (notice_stack_pointer_modification): Likewise.
        (count_or_remove_death_notes): Likewise.
        (verify_flow_info): Likewise.
        (clear_log_links): Likewise.
        * function.c (fixup_var_refs_insns): Use INSN_P.
        (compute_insns_for_mem): Likewise.
        * gcse.c (alloc_gcse_mem): Use INSN_P.
        (compute_sets): Likewise.
        (compute_hash_table): Likewise.
        (classic_gcse): Likewise.
        (cprop): Likewise.
        (insert_insn_end_bb): Likewise.
        (delete_null_pointer_checks_1): Likewise.
        * global.c (expand_preferences): Use INSN_P.
        (build_insn_chain): Likewise.
        * graph.c (node_data): Use INSN_P.
        * haifa-sched.c (priority): Use INSN_P.
        (rm_line_notes): Likewise.
        (rm_other_notes): Likewise.
        (find_insn_reg_weight): Likewise.
        (init_target_units): Likewise.
        (schedule_block): Likewise.
        (compute_block_forward_dependences): Likewise.
        (debug_dependencies): Likewise.
        (set_priorities): Likewise.
        * integrate.c (function_cannot_inline_p): Use INSN_P.
        (save_parm_insns): Likewise.
        (copy_insn_list): Likewise.
        * jump.c (mark_all_labels): Use INSN_P.
        (never_reached_warning): Likewise.
        * lcm.c (optimize_mode_switching): Use INSN_P.
        * local-alloc.c (validate_equiv_mem): Use INSN_P.
        (memref_used_between_p): Likewise.
        (update_equiv_regs): Likewise.
        (block_alloc): Likewise.
        (no_conflict_p): Likewise.
        * loop.c (scan_loop): Use INSN_P.
        (find_and_verify_loops): Likewise.
        (count_loop_regs_set): Likewise.
        (loop_reg_used_before_p): Likewise.
        (strength_reduce): Likewise.
        (recombine_givs): Likewise.
        (check_dbra_loop): Likewise.
        (load_mems): Likewise.
        (try_copy_prop): Likewise.
        * print-rtl.c (print_rtx): Use INSN_P.
        * recog.c (find_single_use): Use INSN_P.
        * reg-stack.c (stack_regs_mentioned): Use INSN_P.
        (next_flags_user): Likewise.
        (swap_rtx_condition): Likewise.
        * regmove.c (mark_flags_life_zones): Use INSN_P.
        (optimize_reg_copy_1): Likewise.
        (optimize_reg_copy_2): Likewise.
        (optimize_reg_copy_3): Likewise.
        (reg_is_remote_constant_p): Likewise.
        (fixup_match_2): Likewise.
        (regmove_optimize): Likewise.
        (fixup_match_1): Likewise.
        * regrename.c (build_def_use): Use INSN_P.
        (replace_reg_in_block): Likewise.
        (consider_use): Likewise.
        * reload.c (find_equiv_reg): Use INSN_P.
        * reload1.c (reload): Use INSN_P.
        (maybe_fix_stack_asms): Likewise.
        (calculate_needs_all_insns): Likewise.
        (reload_as_needed): Likewise.
        (emit_output_reload_insns): Likewise.
        (delete_address_reloads_1): Likewise.
        (reload_cse_regs_1): Likewise.
        (reload_combine): Likewise.
        (reload_cse_move2add): Likewise.
        * reorg.c (redundant_insn): Use INSN_P.
        (dbr_schedule): Likewise.
        * resource.c (find_dead_or_set_registers): Use INSN_P.
        (mark_target_live_regs): Likewise.
        * rtlanal.c (reg_used_between_p): Use INSN_P.
        (reg_referenced_between_p): Likewise.
        (reg_set_between_p): Likewise.
        (reg_set_p): Likewise.
        (single_set): Likewise.
        (multiple_sets): Likewise.
        (find_last_value): Likewise.
        (reg_set_last): Likewise.
        (find_reg_note): Likewise.
        (find_regno_note): Likewise.
        * sibcall.c (sequence_uses_addressof): Use INSN_P.
        * simplify-rtx.c (cselib_process_insn): Use INSN_P.
        * ssa.c (find_evaluations): Use INSN_P.
        (rename_block): Likewise.
        (rename_equivalent_regs): Likewise.
        * unroll.c (loop_find_equiv_value): Use INSN_P.
        (set_dominates_use): Likewise.
        * varasm.c (mark_constant_pool): Use INSN_P.
        (mark_constants): Likewise.
        * config/alpha/alpha.c (alpha_does_function_need_gp): Use INSN_P.
        (alphaev4_next_group): Likewise.
        (alphaev5_next_group): Likewise.
        * config/c4x/c4x.c (c4x_process_after_reload): Use INSN_P.
        (c4x_rptb_rpts_p): Likewise.
        * config/mips/mips.c (mips16_optimize_gp): Use INSN_P.
        * config/rs6000/rs6000.c (uses_TOC): Use INSN_P.
        (rs6000_adjust_priority): Likewise.
        * config/sh/sh.c (sh_loop_align): Use INSN_P.
        (machine_dependent_reorg): Likewise.
        (split_branches): Likewise.
        * config/tahoe/tahoe.c (tahoe_cmp_check): Use INSN_P.

Fri Aug  4 11:43:49 2000  John Wehle  (john@feith.com)

        * combine.c (recog_for_combine): Remove the old notes
        prior to attempting to recognize the new pattern.
        (distribute_notes): Ignore REG_NONNEG notes.

2000-08-04  Chandrakala Chavva  <cchavva@redhat.com>

        * varasm.c (output_constructor): Add .align 0 for packed vars.

2000-08-04  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * configure.in: Use default thread_file even when enable_threads is
        yes or dce because hpux10.20 pa port uses MULTILIB implementation.
        * configure: Rebuilt.

        * gthr-dce.h (__gthread_objc_condition_allocate): Fix typo.

2000-08-04  Donn Terry (donnte@microsoft.com)

        * prefix.c (translate_name): Don't strip trailing DIR_SEPARATOR.

2000-08-04  Mark Elbrecht  <snowball3@bigfoot.com>

        * i386/x-djgpp: Delete code that conditionally modifies target_alias.
        Delete code that conditionally modifies 'version'.
        Delete X_CPPFLAGS. Add comment for SYSTEM_HEADER_DIR.
        * i386/xm-djgpp.h (GCC_DRIVER_HOST_INITIALIZATION): New macro.
        * gcc.c (main): Use it.
        * config/i386/xm-djgpp.h (UPDATE_PATH_HOST_CANONICALIZE): New macro.
        * prefix.c (update_path): Use it.
        * i386/djgpp.h (STANDARD_INCLUDE_DIR): Define.
        (MD_EXEC_PREFIX): Set to '/dev/env/DJDIR/bin/'.
        (ASM_OUTPUT_SECTION_NAME): Add code attribute to sections containing
        code.
        (SUPPORTS_WEAK, SUPPORTS_ONE_ONLY): Default to true.
        (SUBTARGET_SWITCHES): Adjust.
        (WCHAR_UNSIGNED, WCHAR_TYPE_SIZE, WCHAR_TYPE): Undefine before
        defining.
        (WINT_TYPE, SIZE_TYPE, PTRDIFF_TYPE): Define.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.h (flag_isoc94): Declare.
        * c-decl.c (flag_isoc94): Define.
        (c_decode_option): Set flag_isoc94 as appropriate.
        * c-common.c (T_PD, T_IM, T_UIM): Define.
        (format_char_info): Add tlen and jlen.
        (print_char_table): Add entries for %t and %j.  Allow %zn.  Allow
        %F.  Allow %lf.
        (scan_char_table): Add entries for %t and %j.  Allow %F.  Allow
        %l[.
        (time_char_table): Add NULL entries for %t and %j.
        (check_format_info): Allow for %t and %j.  Warn for %F if pedantic
        and not C99.  Warn for %lc, %ls and %l[ if pedantic and not C94.
        Warn for printf %lf if pedantic and not C99.  Don't warn for empty
        precision.  Allow precision argument to be unsigned int.  If
        pedantic, warn for %p passed an argument not a pointer to possibly
        qualified void or a possibly qualified character type, and for
        pointer targets of the wrong sign, except for character pointers.

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * ginclude/stddef.h: Don't declare wint_t unless __need_wint_t.
        * c-common.h (enum c_tree_index): Add CTI_WINT_TYPE.
        (wint_type_node): Define.
        * c-decl.c (WINT_TYPE): Define.
        (init_decl_processing): Create the wint_type_node type.
        * c-common.c (T_WI): Define.
        (print_char_table): Use T_WI for %lc format.

2000-08-04  Bruce Korb  <bkorb@gnu.org>

        * fixinc/:  Verified that the MSDOS patch does not break
        the UNIX functionality and applied the next three patches
        from July:

2000-07-28  Eli Zaretskii  <eliz@is.elta.co.il>

        * fixinc/fixfixes.c (main) [__MSDOS__]: Avoid overwriting the
        output file with the temporary one by appending ".X" to generate
        the temporary fuile's name.  If the output file already has an
        extension, replace it with ".X".

        * fixinc/fixincl.c (fix_with_system) [__MSDOS__]: Use $ORIGDIR,
        not $DESTDIR, to find applyfix.  Use sprintf instead of snprintf;
        reallocate the command buffer while copying the command-line
        argument.  Redirect the output directly to the temporary file,
        instead of going through another temporary file.
        (process): Close the temporary file before unlinking it.
        (machine_matches) [__MSDOS__]: If the machine doesn't match, set
        the FD_SKIP_TEST flag.  Pay attention to the FD_MACH_IFNOT flag.
        (run_compiles): Pass p_fixd argument to machine_matches, as it
        expects.

        * fixinc/fixincl.sh: Export ORIGDIR.  If $DJDIR is set in the
        environment, assume there are no symlinks in the include
        directory.  When cleaning up the DONE files, look for them
        case-insensitively.  Don't try to remove symlinks if they aren't
        there.

        * fixinc/fixlib.c (make_raw_shell_str): Accept new argument smax;
        all callers changed.  Declare pz "const char *", to avoid compiler
        warnings.

        * fixinc/fixlib.h (ENV_TABLE): Get ORIGDIR from the environment.
        Change prototype of make_raw_shell_str.

2000-07-27  Eli Zaretskii  <eliz@is.elta.co.il>

        * fixinc/fixincl.c [__MSDOS__]: Don't include "server.h".
        (initialize) [__MSDOS__]: Use tempnam.
        (initialize): Don't use SIGPIPE if it is not defined.

        * fixinc/fixfixes.c (main) [__MSDOS__]: freopen for stdout should
        return stdout.

2000-07-25  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fix*.[ch]: substantially reworked to make it possible
        to run this program without using fork(2) or pipe(2) (i.e. in
        a DOS environment).

2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>

        * cppdefault.h (WINT_TYPE): Define.
        * cppinit.c (builtin_array): Define __WINT_TYPE__.
        * tradcpp.c (initialize_builtins): Define __WINT_TYPE__.
        * tm.texi (NO_BUILTIN_WINT_TYPE, WINT_TYPE): Document.

Fri Aug  4 06:53:46 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * (mips_legitimate_address_p): Don't allow register+offset              
        if the offset is large and negative, and we are compiling               
        for 64 bit registers.                                                   

2000-08-04 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * gencodes.c (main): Define CODE_FOR_nothing as the last possible
        insn_code_number + 1.

2000-08-04  Kazu Hirata  <kazu@hxi.com>

        * h8300.c (function_prologue): Rearrange code for conciseness.
        (function_epilogue): Likewise.
        * h8300.h (OK_FOR_U): Fix formatting.

        * cse.c: Fix a comment typo. Fix formatting.

2000-08-03  Richard Henderson  <rth@cygnus.com>

        * config/i386/i386.md (return_indirect_internal): New.
        * config/i386/i386.c (ix86_expand_epilogue): Use it.

2000-08-03  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (parse_name): Might have to glue a CPP_OTHER token
        before the name.
        (lex_line): Glue @ onto the beginning of identifiers and
        string constants, in Objective-C mode.
        (output_token, spell_token): Handle CPP_OSTRING.
        (can_paste, maybe_paste_with_next): Handle pasting @ onto the
        beginning of a NAME or a STRING, in objc mode.

        * cpplib.c (get_define_node): Do not permit identifiers that
        begin with @ to be #defined.
        * cppmacro.c (CAN_PASTE_AFTER): Add CPP_OTHER.
        * cpplib.h (TTYPE_TABLE): Add CPP_OSTRING.

        * c-lang.c, objc/objc-act.c (build_objc_string): Delete.
        * c-tree.h (build_objc_string): Delete prototype.
        * objc/objc-tree.def: Delete OBJC_STRING_CST.
        * c-lex.c (yylex): Use build_string for all three kinds of strings.

        * c-parse.in, objc/objc-act.c: Update commentary.

2000-08-03  Mark Mitchell  <mark@codesourcery.com>

        * extend.texi: Fix typo in last change.

        * extend.texi: Add commentary on statement-expressions and their
        interactions with C++.

2000-08-03  Nick Clifton  <nickc@cygnus.com>

        * dwarf2.h (DW_LANG_Java): Change value to 0x000b.
        * dwarf.h (LANG_JAVA): Change value to 0x000b.

2000-08-03  Anthony Green  <green@cygnus.com>

        * dwarf2out.c (gen_compile_unit_die): Add java language support.
        (add_bound_info): Check for java language.
        (is_java): New function.
        * dwarfout.c (output_compile_unit_die): Ditto.
        * dwarf.h (dwarf_source_language): Add java source language type.
        * dwarf2.h (dwarf_source_language): Ditto.

Thu Aug  3 20:32:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (subst_stack_regs_pat):  Use replace_reg to swap
        operands.

        * i386.c (ix86_expand_branch): Mode of comparison in
        IF_THEN_ELSE is VOIDmode.

Thu Aug  3 10:05:53 2000  Akiko Matsushita <matusita@sra.co.jp>

        * gengenrtl.c, rtl.c: Avoid #elif.

2000-08-03  Michael Poole  <poole@troilus.org>

        * tm.texi (Register Classes): Clarify order of sub-initializers
        in REG_CLASS_CONTENTS.

Thu Aug  3 15:53:03 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        From SAITOH Masanobu:
        * sh.h (ASM_OUTPUT_REG_PUSH): Fix syntax.

2000-08-03  David Billinghurst  <David.Billinghurst@riotinto.com.au>

        * config/i386/cygwin.h: Remove -remap from CPP_SPEC since this option
        is not supported by tradcpp and isn't actually needed for cygwin.

2000-08-03  Kazu Hirata  <kazu@hxi.com>

        * h8300.c: Fix a comment typo.
        * h8300.h (OK_FOR_U): Accept a 32-bit constant address on H8/S.

        * jump.c: Fix formatting.

        * toplev.c: Fix formatting.

Thu Aug  3 01:05:32 2000  Jeffrey A Law  (law@cygnus.com)

        * flow.c (find_auto_inc): Verify that we've got a REG before
        peeking at its regno.  Fail, don't abort if we can't find
        the increment of the desired register.

        * pa.md (shadd height reduction patterns/splitters): Remove.

2000-08-02  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64-protos.h (flag_ssa): Declare.
        * config/ia64/ia64.md (movti_internal, movti_internal+1): New.

2000-08-02  Mark Mitchell  <mark@codesourcery.com>

        * dce.c: Remove all uses of assert.
        * dwarf2out.c: Likewise.
        * dwarfout.c: Likewise.
        * ssa.c: Likewise.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.h (lang_specific_driver): Constify second argument.
        * gcc.c (translate_options, process_command, main): Likewise.
        Constify variables to match.  Cast second argument to
        pexecute.

        * cppspec.c, gccspec.c: Adjust type of second argument to
        lang_specific_driver, and update code as necessary.

2000-08-02  Jakub Jelinek  <jakub@redhat.com>

        * loop.c (scan_loop): Ensure update_end label does not
        go away until reg_scan_update is run.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

        * c-common.h: Prototype min_precision and c_build_qualified_type here...
        * c-tree.h: ... not here.
        * errors.h: Prototype fancy_abort.

        * emit-rtl.c (gen_lowpart_common): Move variable 'c' into
        HOST_BITS_PER_WIDE_INT == 64 ifdef block.
        * regrename.c (regrename_optimize): Make control flow explicit.
        (replace_reg_in_block): Initialize reg_use to 0.

        * i386.c (legitimate_address_p): Rename error label to
        report_error to avoid namespace clash.

2000-08-02  Kazu Hirata  <kazu@hxi.com>

        * fold-const.c: Fix formatting.

Wed Aug  2 16:26:15 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.c (legitimate_address_p): Accept other bases than
        pic_offset_table_rtx for GOTOFF constructs.

Wed Aug  2 15:59:34 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (shift to lea splitter): Use const_int_operand.

2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c, cppinit.c, cpplex.c, cpplib.c, cppmacro.c,
        cppspec.c: Do not use 'legal' or 'illegal' in error messages
        and comments.

        * cppmain.c (cb_define, cb_undef): Don't generate any output
        if not done_initializing.
        * cpplex.c (maybe_paste_with_next): When the token after a ##
        is an omitted rest argument, only delete the token before it
        if that token is a comma.  Do not warn about bogus token
        pastes for , ## rest_arg.

        * cpp.texi: Update.
        * cpp.1: Regenerate.

2000-08-02  Fred Fish  <fnf@be.com>

        * config/i386/beos-elf.h (STARTFILE_SPEC): Add i386-mcount.o
        when user gives -p option.  Add init_term_dyn.o for BeOS 5.0
        and later.

        * config/i386/beos-elf.h (INCLUDE_DEFAULTS): Add additional
        Be directories to search path.

        Remove support for __declspec(dllimport) and __declspec(dllexport).
        This is leftover cruft from the earlier BeOS gcc port when BeOS
        used Microsoft's PE object file format.
        * configure.in (i*86-*-beoself): Remove extra_objs=winnt.o.
        * config/i386/t-beos (winnt.o): Remove Makefile frag.
        * config/i386/beos-elf.h (TARGET_NOP_FUN_DLLIMPORT): Remove.
        (VALID_MACHINE_DECL_ATTRIBUTE): Remove.
        (VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
        (MERGE_MACHINE_DECL_ATTRIBUTES): Remove.
        (REDO_SECTION_INFO_P): Remove.
        (ASM_EXPORT_DECL): Remove.
        (ASM_DECLARE_FUNCTION_NAME): Remove.
        (ASM_DECLARE_OBJECT_NAME): Remove.
        (ASM_OUTPUT_ALIGNED_COMMON): Remove.
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): Remove.
        (ASM_OUTPUT_ALIGNED_LOCAL): Remove.
        (STRIP_NAME_ENCODING): Remove.

        Remove support for obsolete version of BeOS that is no longer
        supported by Be.
        * configure.in (i*86-*-beospe*): Remove.
        * config/i386/beos-pe.h: Remove.

2000-08-01  Jeffrey Oldham  <oldham@codesourcery.com>
            Mark Mitchell <mark@codesourcery.com>

        * Makefile.in (OBJS): Added dce.o.
        (ssa.o): Updated target to include ssa.h.
        (flow.o): Likewise.
        (toplev.o): Likewise.
        (dce.o): Created target.
        * basic-block.h: Added comments.
        (INVALID_BLOCK): Added definition.
        (connect_infinite_loops_to_exit): Added declaration.
        Moved SSA declarations to ssa.h.
        * flow.c: Added inclusion of ssa.h.
        (struct depth_first_search_dsS, depth_first_search_ds):
        Added definitions.
        (compute_immediate_postdominators): Added definition.
        (connect_infinite_loops_to_exit): Likewise.
        (flow_dfs_compute_reverse_init): Likewise.
        (flow_dfs_compute_reverse_add_bb): Likewise.
        (flow_dfs_compute_reverse_execute): Likewise.
        (flow_dfs_compute_reverse_finish): Likewise.
        * rtl.h (rtx/in_struct): Added use to determine insn necessity.
        (LABEL_P): Added definition.
        (JUMP_P): Likewise.
        (NOTE_P): Likewise.
        (BARRIER_P): Likewise.
        (JUMP_TABLE_DATA_P): Likewise.
        (INSN_DEAD_CODE_P): Likewise.
        * ssa.c: Replaced inclusions with ssa.h inclusion.
        (CONVERT_HARD_REGISTER_TO_SSA_P): Moved to ssa.h.
        (rename_registers): Removed unnecessary variables.
        * ssa.h: Created by moving declarations from ssa.c and
        basic-block.h.
        * timevar.def: Defined TV_DEAD_CODE_ELIM.
        * toplev.c: Added ssa.h inclusion.
        (dump_file_index): Added DFI_dce.
        (dump_file): Added "dce" entry.
        Defined flag_ssa.
        (f_options): Added dce entry.
        * invoke.texi: Document -fdce.  Emphasize experimental status of
        -fssa.
        * dce.c: New file.

2000-08-01  Zack Weinberg  <zack@wolery.cumb.org>

        * cpperror.c (v_message): Split into _cpp_begin_message and
        v_message macro.  All callers updated.
        (_cpp_begin_message): Do inhibit_errors/inhibit_warnings
        checks here.

        * cppfiles.c (cpp_syshdr_flags): New function.
        (read_include_file): Don't call cpp_output_tokens.  Call
        enter_file hook.
        * cppinit.c (dump_macros_helper): Moved to cppmain.c.
        (cpp_reader_init): Don't initialize token_buffer.  Call
        _cpp_init_internal_pragmas.
        (cpp_cleanup): Don't clear token_buffer.
        (cpp_start_read): Don't worry about output from -D processing.
        Don't call cpp_output_tokens.
        (cpp_finish): Don't dump macros here.  Don't call
        cpp_output_tokens.
        * cppmacro.c (_cpp_dump_definition): Rename
        cpp_dump_definition.  Write directly to a FILE *.
        (dump_funlike_macro): Delete.
        (dump_macro_args): New.

        * cpplex.c (TOKEN_LEN): Convert to inline function.
        (_cpp_grow_token_buffer, safe_fwrite, cpp_output_tokens,
        cpp_scan_line, _cpp_dump_list): Delete.
        (cpp_printf, cpp_output_list): New.
        (output_line_command): Don't worry about entering or leaving files.
        (cpp_scan_buffer): Just output each token as we hit it.
        (process_directive): Don't call cpp_output_tokens.
        (_cpp_glue_header_name): Don't use token_buffer.
        (output_token, dump_param_spelling): Write directly to a FILE *.

        * cpplib.c (pass_thru_directive, dump_macro_name,
        pragma_dispatch, do_pragma_gcc): Delete.
        (do_define, do_undef, parse_include, do_line, do_ident, do_pragma,
        do_pragma_poison, cpp_pop_buffer): Call the appropriate hook
        functions.
        (do_error, do_warning, pragma_dependency): Call
        _cpp_begin_message, then cpp_output_list.
        (cpp_register_pragma, cpp_register_pragma_space,
        _cpp_init_internal_pragmas): New.
        (do_pragma): Walk the pragmas table here.
        (do_pragma_once, do_pragma_poison, do_pragma_system_header,
        do_pragma_dependency): Return void.
        (do_pragma_implementation): Moved to cppmain.c.

        * cpplib.h: Update prototypes.
         (struct cpp_reader): Remove printer, token_buffer,
        token_buffer_size, and limit.  Add struct cb, and pragmas.
        (struct cpp_printer): Remove last_id and written.
        (CPP_WRITTEN, CPP_PWRITTEN, CPP_SET_WRITTEN,
        CPP_ADJUST_WRITTEN): Delete.
        * cpphash.h: Update prototypes.
        (ufputs): New wrapper.

        * cppmain.c (cb_define, cb_undef, cb_include, cb_ident,
        cb_enter_file, cb_leave_file, cb_def_pragma): New functions.
        (main): Set up callbacks.  Register #pragma implementation.
        Dump macros from here.

2000-08-01  Geoff Keating  <geoffk@cygnus.com>

        * rtl.h (enum reg_note): Add REG_MAYBE_DEAD.
        * rtl.c (reg_note_name): Add REG_MAYBE_DEAD.
        * flow.c (propagate_one_insn): Allow deletion of prologue/epilogue
        insns if they have a REG_MAYBE_DEAD note attached.
        * config/rs6000/rs6000.c (rs6000_maybe_dead): New function.
        (rs6000_emit_load_toc_table): TOC loads may go dead.

2000-08-01  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (ia64_function_arg): Fix last change.  Verify
        type exists before using it.  Use number of words as alignment
        otherwise.
        (ia64_function_arg_partial_nregs, ia64_function_arg_advance,
        ia64_va_arg): Propagate ia64_function_args changes here.

2000-08-01  Richard Henderson  <rth@cygnus.com>

        * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Care for null DECL.
        * config/ia64/sysv4.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.

2000-08-01  Bernd Schmidt  <bernds@cygnus.co.uk>

        From Joern Rennecke:
        * sh.h (CPP_SPEC, TARGET_SWITCHES): Add m4-nofpu.
        * sh.md (udivsi3, divsi3): Don't use libcalls that use the FPU
        unless TARGET_SH3E is set.
        * t-sh (MULTILIB_MATCHES): Add m2=m4-nofpu.

        * sh.md (ashlsi3_d, ashlsi3_k): Remove, replace with
        (ashlsi3_std): New pattern.
        (ashlsi3 expander): Use it for TARGET_SH3.
        * sh.c (gen_ashift): Use it instead of ashlsi3_k.

Tue Aug  1 12:34:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (canonicalize_condition):  Use destination, not source to
        determine SET's mode.

2000-07-31  Mark Mitchell  <mark@codesourcery.com>

        * flow.c (clear_log_links): Fix typo.

Mon Jul 31 22:19:24 2000  Jeffrey A Law  (law@cygnus.com)

        * loop.c (check_dbra_loop): Make change from July 17, 2000 work
        on targets which need more than one insn for a compare/cbranch
        operation.

2000-07-31  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (ia64_function_arg): Use alignment not size
        when computing offset.

Mon Jul 31 20:35:50 2000  Denis Chertykov  <denisc@overta.ru>

        * genpeep.c (main): Handle DEFINE_PEEPHOLE2.

2000-07-31  Geoff Keating  <geoffk@cygnus.com>

        * flow.c (clear_log_links): Nuke global_live_at_start and
        global_live_at_end data, since if the log_links stuff is invalid
        so is global_live_at_*.

2000-07-31  Richard Henderson  <rth@cygnus.com>

        * tm.texi (Addressing Modes): Clarify PRE/POST_MODIFY descriptions.

2000-07-31  Jakub Jelinek  <jakub@redhat.com>

        * cpplex.c (_cpp_get_line): If index is 0, return line 0 col 0.
        (_cpp_get_token): Don't macro expand a just pasted token if it
        was pasted at no_expand_level.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

        * cppmacro.c (find_param, count_params, save_expansion):
        Permit 'defined' as a macro parameter name.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

        * Makefile.in: Rename cpp to cpp0, tradcpp to tradcpp0, and
        xcpp to cpp throughout.
        (native): Remove unnecessary dependency on cpp.

        * gcc.c (trad_capable_cpp, C specs): Rename cpp to cpp,
        tradcpp to tradcpp0.
        (.i spec): Add missing output-file spec to cc1 command line.
        * objc/lang-specs.h: Rename cpp to cpp0 and/or tradcpp to tradcpp0.

2000-07-31  Zack Weinberg  <zack@wolery.cumb.org>

        * c-decl.c (mesg_implicit_function_declaration): Init to -1.
        (implicit_decl_warning): New function.
        (implicitly_declare): Use it.
        * c-typeck.c (build_external_ref): Use implicit_decl_warning
        to complain about implicit decls of builtins.

        * c-lang.c (lang_init): Set mesg_implicit_function_declaration
        based on pedantic && flag_isoc99, if not already set.
        * c-tree.h: Declare mesg_implicit_function_declaration.
        Prototype implicit_decl_warning.

2000-07-30  Jeffrey D. Oldham  <oldham@codesourcery.com>

        * Makefile.in (ssa.o): Updated header files in dependences.
        * basic-block.h: Added compute_immediate_postdominators declaration.
        * config/i386/i386.h (CONVERT_HARD_REGISTER_TO_SSA_P): Added
        definition.
        * flow.c (compute_immediate_dominators): Updated comment.
        (compute_immediate_postdominators): Added definition.
        * rtl.h (HARD_REGISTER_P): Added definition.
        * ssa.c: Include additional header files.
        (assert): Added definition.
        (ssa_rename_to_lookup): Added to reimplement ssa_rename_to to
        include select hard registers.
        (ssa_rename_to_insert): Likewise.
        (ssa_rename_from_initialize): Likewise.
        (ssa_rename_from_lookup): Likewise.
        (original_register): Likewise.
        (ssa_rename_from_insert): Added to reimplement ssa_rename_from to
        include select hard reigsters.
        (ssa_rename_from_traverse): Likewise.
        (ssa_rename_from_free): Likewise.
        (ssa_rename_from_print): Likewise.
        (ssa_rename_from_print_1): Likewise.
        (ssa_rename_from_hash_function): Likewise.
        (ssa_rename_from_equal): Likewise.
        (ssa_rename_from_delete): Likewise.
        (simplify_to_immediate_dominators): Removed in favor of
        flow.c:compute_immediate_dominators.
        (find_evaluations_1): Modified to work with hard registers.
        (insert_phi_node): Likewise.
        (insert_phi_nodes): Likewise.
        (struct rename_set_data): Updated prev_reg comment.
        (create_delayed_rename): Modified to work with hard registers.
        (RENAME_NO_RTX): Updated comment.
        (apply_delayed_renames): Modified to work with hard registers.
        (rename_insn_1): Likewise and added handling of CLOBBER rtls.
        (rename_block): Updated to use revised ssa_rename_to interface.
        (rename_registers): Updated to use revised ssa_rename_to and
        ssa_rename_from interface.
        (convert_to_ssa): Revised to use compute_immediate_dominators and
        deal with hard registers.
        (make_regs_equivalent_over_bad_edges): Modified to work with hard
        registers.  Added check for illegal unification of hard register.
        (make_equivalent_phi_alternatives_equivalent): Modified to work
        with hard registers.
        (compute_conservative_reg_partition): Likewise.
        (coalesce_if_unconflicting): Modified to work with hard registers
        and check for conflicting hard registers.
        (mark_phi_and_copy_regs): Revised loop to work only on pseudo
        registers.
        (rename_equivalent_regs_in_insn): Modified to work with hard
        registers.
        (record_canonical_element_1): Added definition.
        (check_hard_regs_in_partition): Added definition.
        (convert_from_ssa): Added data structure deallocation and check
        for illegal hard register unification.
        (conflict_hard_regs_p): Added definition.
        * toplev.c (rest_of_compilation): Added comment.

2000-07-31  Anthony Green  <green@redhat.com>

        * config/ia64/crtbegin.asm (__EH_FRAME_BEGIN__): Align correctly.

2000-07-31  Jason McMullan  <jmcmullan@linuxcare.com>

        * builtins.c (expand_builtin_apply): Don't defer pop during
        argument setup.

2000-07-31 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * calls.c (combine_pending_stack_adjustment_and_call): Only use
        preferred_unit_stack_boundary when it is > 1.

2000-07-31  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (init_function_format_info): Add C99 format functions
        in C99 mode.

        * c-decl.c (get_parm_info): Don't treat 'const void', 'volatile
        void' or 'register void' as being the special case of 'void' alone
        in a parameter list.

        * c-typeck.c (build_c_cast): Change -Wcast-qual pedwarn for
        discarding qualifiers into a plain warning.

2000-07-31  Kazu Hirata  <kazu@hxi.com>

        * combine.c: Fix formatting.

        * h8300.md: Fix formatting.

        * local-alloc.c: Fix formatting.

        * h8300.c (get_shift_alg): Remove the variable alg.
        (emit_a_shift): Rearrange code to improve readability.

        * h8300.md (movsi_h8300hs): Rearrange code to improve readability.

        * h8300.h (MODES_TIEABLE_P): Accept a combination of QImode and
        HImode on all architectures and a combination of HImode and SImode
        on H8/300H and H8/S.

        * h8300.c (split_adds_subs): Rearrange code for conciseness.

Mon Jul 31 12:27:55 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (addsi to lea splitter, ashlqi3_1_lea): Fix bugs
        in my last checkin.

Mon Jul 31 10:41:01 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * recog.c (extract_insn): Set operand_mode according to
        operand if match_operand is VOIDmode.

Mon Jul 31 10:36:38 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * recog.c (validate_replace_rtx_1): Do not abort for (nil) expression.

2000-07-31  Geoff Keating  <geoffk@cygnus.com>

        * c-parse.in (extdefs): Call ggc_collect between external
        definitions.

2000-07-30  Michael Hayes  <mhayes@cygnus.com>
            Richard Henderson  <rth@cygnus.com>

        * Makefile.in (OBJS): Add doloop.o.
        * doloop.c: New file.

        * final.c (insn_current_reference_address): Return 0 before final.
        * flags.h (flag_branch_on_count_reg): Fix typos in commentary.
        * jump.c (any_uncondjump_p): Likewise.
        * loop.c (indirect_jump_in_function): Make static.
        (strength_reduce): Call doloop_optimize.
        (insert_bct, instrument_loop_bct): Remove.
        * loop.h (doloop_optimize): Prototype.
        * recog.c (split_all_insns): Split all INSN_P.
        * toplev.c (flag_branch_on_count_reg): Default on.

        * config/c4x/c4x.c (c4x_optimization_options): Don't set
        flag_branch_on_count_reg.
        * config/i386/i386.c (override_options): Likewise.
        * config/rs6000/rs6000.c (optimization_options): Likewise.

        * config/i386/i386.md (decrement_and_branch_on_count): Remove.
        (doloop_end): New.
        (dbra_ge): Remove, as well as all it's splitters.

        * config/rs6000/rs6000.md (decrement_and_branch_on_count): Remove.
        (doloop_end): New.

        * config/ia64/ia64-protos.h (ar_lc_reg_operand): Declare.
        (ia64_register_move_cost): Declare.
        * config/ia64/ia64.c (ar_lc_reg_operand): New.
        (struct ia64_frame_info): Add ar_size.
        (ia64_compute_frame_size): Set it.
        (save_restore_insns): Save and restore ar.lc.
        (ia64_register_move_cost): New, moved from header file.  Handle
        application registers.
        (REG_AR_PFS, REG_AR_EC): Remove.  Replace with AR_*_REGNUM numbers.
        (emit_insn_group_barriers): Special case doloop_end_internal.
        (ia64_epilogue_uses): Mark ar.lc live at end.
        * config/ia64/ia64.h (AR_CCV_REGNUM, AR_LC_REGNUM): New registers.
        (AR_EC_REGNUM, AR_PFS_REGNUM): New registers.
        (FIRST_PSEUDO_REGISTER): Make room.
        (AR_M_REGNO_P, AR_I_REGNO_P, AR_REGNO_P): New.
        (FIXED_REGISTERS, CALL_USED_REGISTERS): Update.
        (REG_ALLOC_ORDER): Update.
        (HARD_REGNO_MODE_OK): Update.
        (REGISTER_NAMES): Update.
        (enum reg_class): Add AR_M_REGS and AR_I_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update.
        (REGNO_REG_CLASS): Update.
        (LEGITIMATE_ADDRESS_DISP): Displacement range is 9 bits, not 10.
        (REGISTER_MOVE_COST): Move out of line.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md (movdi patterns): Handle ar register classes.
        (addsi3_plus1_alt, adddi3_plus1_alt): New.
        (shladd_elim splitter): Allow constants in the predicate.
        (doloop_end, doloop_end_internal): New.

2000-07-30  Richard Henderson  <rth@cygnus.com>

        * genattrtab.c (struct insn_def): Add lineno member.
        (struct insn_ent): Likewise.
        (struct attr_desc): Likewise.
        (struct delay_desc): Likewise.
        (struct function_unit_op): Likewise.
        (struct function_unit): Likewise.
        (check_attr_value): Use message_with_line.
        (check_defs): Likewise.
        (expand_units): Likewise.
        (check_attr_test): Take a lineno argument.
        (gen_attr): Likewise.
        (gen_insn): Likewise.
        (gen_delay): Likewise.
        (gen_unit): Likewise.
        (main): Give it to them.
        (convert_set_attr_alternative): Take an insn_def argument
        instead of num_alt and insn_index.
        (convert_set_attr): Likewise.
        (write_test_expr): Protect INSN_ADDRESSES load
        with INSN_ADDRESSES_SET_P.

2000-07-30  Richard Henderson  <rth@cygnus.com>

        * flow.c (init_propagate_block_info): Use pc_set.

Sun Jul 30 20:58:34 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (*lea_general_[123]) New insns and splits.
        (addsi3 to lea splitter): Handle other modes too.
        (shlsi3 to lea splitter): Likewise.
        (addhi_1_lea, shlhi_1_lea): New patterns.
        (addhi_1, shlhi_1): Conditionize by PARTIAL_REG_STALL.

Sun Jul 30 20:51:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * recog.c (general_operand, nonimmediate_operand): Accept
        any mode for VOIDmode CONSTANT_P operands.

Sun Jul 30 20:42:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * gcse.c (try_replace_reg): Use validate_replace_rtx_subexp
        instead of replace_rtx.
        * recog.c (validate_replace_rtx_subexp): New function.
        * recog.h (validate_replace_rtx_subexp): Declare.

Sun Jul 30 20:38:26 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * combine.c (simplify_set, make_extraction, make_compound_operation
        make_field_assignment): Use full mask instead of GET_MODE_MASK (mode)
        as force_to_mode argument.

Sun Jul 30 20:30:41 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * combine.c (if_then_else_cond): Be sure that mode fits in
        HOST_WIDE_INT.

Sun Jul 30 20:27:36 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * combine.c (record_promoted_value):  Allow bitsize of mode
        to be equivalent to HOST_BITS_PER_WISE_INT.

Sun Jul 30 20:25:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * function.c (assign_stack_local_1, assign_stack_temp_for_type):
        Do not call gen_mode_alignment when mode is BLKmode.

Sun Jul 30 20:21:54 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * loop.c (express_from_1): Fix call of simplify_gen_binary.

Sun Jul 30 20:08:37 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * simplify-rtx.c (simplify_relational_operation): Verify that mode ==
        VOIDmode implies both operands to be VOIDmode.
        (simplify_ternary_operation): Compute properly the mode of comparison.
        * combine.c (combine_simplify_rtx): Likewise.

2000-07-25  Michael Hayes  <mph@paradise.net.nz>

        * basic-block.h (struct loops): New field rc_order.
        * flow.c (flow_loops_cfg_dump): Dump rc_order if computed.
        (flow_loops_free): Free rc_order.
        (flow_depth_first_order_compute): New parameter rc_order.
        (flow_loops_find): Allocate rc_order and swap usage with
        dfs_order.

2000-07-30 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
           Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.md (set_ldp_prologue): Add for RTL prologue/epilogue.
        (push_st, push_dp, pop_st, pop_dp, popqi_unspec): Likewise.
        (nodb_call, return_from_epilogue): Likewise.
        (return_from_interrupt_epilogue, prologue, epilogue): Likewise.
        * config/c4x/c4x.c (c4x_expand_prologue, c4x_expand_eplilogue): Add.
        * config/c4x/c4x-protos.h (c4x_interrupt_function_p): Add.
        (c4x_expand_prologue, c4x_expand_epilogue): Likewise.
        (c4x_valid_type_attribute_p): Likewise.
        * config/c4x/c4x.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): Delete.
        (FUNCTION_BLOCK_PROFILER_EXIT): Convert to emit RTL.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_emit_move_sequence): Use loadqi_big_constant
        and loadhi_big_constant if applicable.
        * config/c4x/c4x.md (loadqi_big_constant, loadhi_big_constant): Tweak
        and add new splitter.s

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.c (c4x_rptb_insert): Make more robust.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (ASM_FORMAT_PRIVATE_NAME): Output $ in label.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/c4x.h (IS_XXX_REGNO): Rewrite to avoid unsigned warnings.

2000-07-30  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

        * config/c4x/libgcc.S (divqf3): Improve accuracy.

2000-07-27  Mark Mitchell  <mark@codesourcery.com>

        Put phi nodes after NOTE_INSN_BASIC_BLOCK.
        * rtl.h (NOTE_INSN_BASIC_BLOCK_P): New macro.
        * bb-reorder.c (get_next_bb_note): Use NOTE_INSN_BASIC_BLOCK_P.
        (get_prev_bb_note): Likewise.
        (remove_scope_notes): Likewise.
        * flow.c (commit_one_edge_insertion): Likewise.
        (merge_blocks_nomove): Likewise.
        (verify_flow_info): Likewise.
        * gcse.c (insert_insn_end_bb): Likewise.
        * reg-stack.c (emit_swap_insn): Likewise.
        * ssa.c (first_insn_after_basic_block_note): New function.
        (insert_phi_node): Use it.
        (rename_block): Likewise.
        (eliminate_phi): Likewise.
        (make_regs_equivalent_over_bad_edges): Likewise.
        (make_equivalent_phi_alternatives_equivalent): Likewise.
        (for_each_successor_phi): Likewise.
        (convert_from_ssa): Modify phi-node deletion algorithm.

2000-07-29  Andreas Jaeger  <aj@suse.de>

        * configure.in (mips*-*-linux*): Use mips*el to check for little
        endian MIPS, add tmake_file.

        * config/mips/linux.h (TARGET_VERSION): Use GNU/Linux.
        (SUBTARGET_CPP_SPEC): Default MIPS_ISA is 1.
        Patches by Maciej W. Rozycki <macro@ds2.pg.gda.pl>.

2000-07-28  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (ia64_print_operand): Fix typos.
        Sign extend mode size before negating.

2000-07-28  Richard Henderson  <rth@cygnus.com>

        * emit-rtl.c (gen_lowpart_common): Add missing 'c' variable.

2000-07-28  Bernd Schmidt  <bernds@cygnus.co.uk>

        * cse.c (canon_hash): Handle PRE_MODIFY/POST_MODIFY.
        (cse_insn): Likewise.
        (addr_affects_sp_p): Likewise.
        * expr.c (move_by_pieces): Likewise.
        (clear_by_pieces): Likewise.
        * gcse.c (oprs_unchanged_p): Likewise.
        * haifa-sched.c (sched_analyze_2): Likewise.
        * recog.c (offsettable_address_p): Likewise.
        * regclass.c (record_address_regs): Likewise.
        * reload.c (find_reusable_reload): Likewise.
        (push_reload): Likewise.
        (operands_match_p): Likewise.
        (decompose): Likewise.
        (find_reloads_address_1): Likewise.
        (find_inc_amount): Likewise.
        * reload1.c (elimination_effects): Likewise.
        * resource.c (mark_set_resources): Likewise.
        * flow.c (attempt_auto_inc): New function; mostly broken out
        of find_auto_inc.
        (find_auto_inc): Split into two functions and enhanced to
        generate POST_MODIFY.
        * rtl.def (PRE_MODIFY, POST_MODIFY): Adjust comment.
        * rtl.h (count_all_occurrences):  Declare.
        (HAVE_{PRE,POST}_MODIFY_{DISP,REG}): Provide default of 0 if not
        defined.
        * rtlanal.c (count_all_occurrences): New function.
        * tm.texi (HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_DISP,
        HAVE_POST_MODIFY_REG, HAVE_PRE_MODIFY_REG): Document.

        * config/ia64/ia64-protos.h (destination_operand): Declare.
        * config/ia64/ia64.c (destination_operand): New function.
        (ia64_print_operand): Handle POST_MODIFY.
        (rtx_needs_barrier): Likewise.
        * config/ia64/ia64.h (HAVE_POST_MODIFY_DISP): Define to 1.
        (HAVE_POST_MODIFY_REG): Define to 1.
        (MAX_REGS_PER_ADDRESS): Change to 2.
        (GO_IF_LEGITIMATE_ADDRESS): Accept POST_MODIFY too.
        (LEGITIMATE_ADDRESS_REG): New helper macro.
        (LEGITIMATE_ADDRESS_DISP): Likewise.
        (PREDICATE_CODES): Add entry for destination_operand.
        * config/ia64/ia64.md (all mov patterns): Use destination_operand
        predicate for operand 0.

2000-07-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * dwarf2out.c: Indent #error directive.

        * gbl-ctors.h: Fix typo in comment.
        (__do_global_ctors): Prototype.

        * gcse.c (record_one_set, pre_delete): Remove unused variables.

        * rs6000.c (rs6000_maybe_dead): Delete unused prototype.
        (print_operand): Initialize variable `t'.

2000-07-27  Aldy Hernandez  <aldyh@redhat.com>

        * config/arm/arm.md ("call_value"): removed constraints.
        Constraints are ignored in expanders.
        (*call_value_reg): split =rf into various constraints.
        (*call_value_mem): same
        (*call_value_symbol): same
        (*sibcall_value_insn): same

2000-07-28  Philipp Thomas  <pthomas@suse.de>

        * install.texi (--enable-nls): Change the description of the NLS
        related configure options to match the current state.
        (--with-included-gettext): Likewise.
        (--enable-maintainer-mode): New description added.
        * extend.texi (-fstrict-prototype): Add missing '.'.

2000-07-27  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (gen_decl_die): Don't call gen_abstract_function if
        DECL_INITIAL (decl) == NULL_TREE.

2000-07-27  Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (INSN_ATTR_H): New macro.  Replace all dependencies
        on insn-attr.h with it.
        * genattr.c: Generate `#include "insn-addr.h"' if HAVE_ATTR_length.
        * insn-addr.h: New header.
        (insn_addresses_): Renamed from insn_addresses.
        (INSN_ADDRESSES_DEFN, INSN_ADDRESSES, INSN_ADDRESSES_ALLOC,
        INSN_ADDRESSES_FREE, INSN_ADDRESSES_SET_P, INSN_ADDRESSES_SIZE,
        INSN_ADDRESSES_NEW): New macros.
        * genattrtab.c (write_test_expr): Use new macros.
        * final.c (insn_addresses, init_insn_lengths): Likewise.
        (align_fuzz, shorten_branches): Likewise.
        (final): Likewise.  Do not reject new insns if their addresses
        have been added to INSN_ADDRESSES.
        * config/arm/arm.c, config/avr/avr.c: Use new macros.
        * config/h8300/h8300.c, config/i370/i370.c: Likewise.
        * config/m88k/m88k.c, config/pa/pa.c, config/pa/pa.md: Likewise.
        * config/sparc/sparc.c, config/sparc/sparc.md: Likewise.
        * config/sh/sh.c: Likewise.
        (output_branchy_insn): Use INSN_ADDRESSES_NEW.

        * Makefile.in (bootstrap): Move -BstageN/ back to the beginning.

2000-07-27  Andrew Cagney  <cagney@b1.cygnus.com>

        * gcc.c (struct prefix_list): Add member priority.
        (enum path_prefix_priority): Declare.
        (add_prefix): Replace ``first'' with ``priority''.  Append new
        entry but keep list in priority order.
        (process_command): Update.  Pass PREFIX_PRIORITY_B_OPT or
        PREFIX_PRIORITY_LAST to add_prefix.
        (process_command): Move include kludge - foo/stageN - to before
        foo/include.

2000-07-27  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (gen_typedef_die): Abort if we get identical
        TREE_TYPE and DECL_ORIGINAL_TYPE on a typedef.

2000-07-27  RodneyBrown  <RodneyBrown@pmsc.com>

        * expr.h (get_alias_set, lang_get_alias_set): Delete prototypes.
        * tree.h (get_alias_set, lang_get_alias_set): Prototype.

2000-07-27  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-decl.c (finish_function): Don't treat 'main' specially unless
        flag_hosted.  In C99 mode, return 0 from 'main' unless
        DEFAULT_MAIN_RETURN is otherwise defined.

        * c-decl.c (store_parm_decls): In C99 mode, pedwarn for function
        parameters defaulting to int in an old-style function definition.

2000-07-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-parse.in (string): For -Wtraditional, warn about string
        concatenation only once per line.

Thu Jul 27 09:25:17 2000  Akiko Matsushita  <matusita@sra.co.jp>

        * pa/x-pa-hpux: Add -D_HIUX_SOURCE to FIXPROTO_DEFINES
        for HI-UX/WE2 systems.

2000-07-24  Bruce Korb  <bkorb@gnu.org>

        * fixincl/fixfixes.c(emit_gnu_type): rewrote to *rely* on GCC
        defining the __xxx_TYPE__ macros.
        * fixincl/fixincl.tpl(gnu_type_map): now obsolete
        * fixincl/fixlib.h: don't need to include "tm.h" anymore
        * fixincl/inclhack.def(type_map): now obsolete

Thu Jul 27 11:54:17 2000  Andrew Cagney  <cagney@b1.cygnus.com>

        * cpp.texi: Append a trailing full-stop to xrefs where needed.

2000-07-26  Dave Pitts  <dpitts@cozx.com>

        * i370.c: Remove LONGEXTERNAL ifdef from alias_number. Added hash
        routine constants.
        (mvs_hash_alias): New function.
        (mvs_add_alias): Change argument spacing.
        (mvs_need_alias): Change aliasing criteria. Added documentation.
        (mvs_get_alias): Change to use hashed name. The hashed name prevents
        CSECT name collisions.
        (mvs_check_alias): Likewise.
        (handle_pragma): Change documentation.
        * i370.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3): Changed gen_rtx
        mode from SImode to DImode.
        (iorhi3): Changed LTORG size for insn.

Wed Jul 26 19:44:05 2000   Hans-Peter Nilsson  <hp@axis.com>

        * reload.c (find_reloads_toplev): Reload a paradoxical subreg of a
        mem if the address is a mode_dependent_address_p.

2000-07-26  Kazu Hirata  <kazu@hxi.com>

        * h8300.c (print_operand): Print ":8" when the 'R' operand is
        suitable for 8-bit absolute.
        * h8300.h (EIGHTBIT_CONSTANT_ADDRESS_P): New.
        (OK_FOR_U): Add a case for the 8-bit constant address on the
        H8/300H.

Wed Jul 26 19:26:21 2000  Hans-Peter Nilsson  <hp@axis.com>

        * varasm.c (assemble_variable) [! defined(ASM_OUTPUT_ALIGNED_COMMON)
        && ! defined (ASM_OUTPUT_ALIGNED_BSS]): Also test
        ! defined(ASM_OUTPUT_ALIGNED_DECL_COMMON) before complaining about
        lack of implemented alignment.

2000-07-26  Geoffrey Keating  <geoffk@cygnus.com>

        * emit-rtl.c (gen_lowpart_common) [REAL_ARITHMETIC]: Handle
        cross-compiling between 64-bit and 32-bit machines.

2000-07-27  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (movqicc_astep, movqi_internal_astep): New.
        (movhicc_astep, movhi_internal_astep): New.
        (movsicc_astep, movsi_internal_astep): New.
        (movdicc_astep, movdi_internal_astep): New.
        (movsfcc_astep, movsf_internal_astep): New.
        (movdfcc_astep, movdf_internal_astep): New.
        (movxfcc_astep, movxf_internal_astep): New.
        (cmovdi_internal_astep, cmovsi_internal_astep): New.
        Unify the cmov[ds]i splitters.

2000-07-27  Rodney Brown  <RodneyBrown@pmsc.com>

        * real.c (asctoeg): Rename `error' label to unexpected_char_error

2000-07-26  Nick Clifton  <nickc@cygnus.com>

        * config/arm/vxarm.h (CPP_PREDEFINES): Remove definition of
        __arm__.  Allow it to be defined by CPP_ISA_SPEC in arm.h

        * dwarf2out.c (dwarf2out_frame_debug_expr): Accept SEQUENCE as
        well as PARALLEL blocks in FRAME_RELATED_EXPR notes.

2000-07-26  Alexandre Oliva  <aoliva@redhat.com>

        * c-decl.c (finish_enum): Convert enumerations that fit in an
        `int' to `int'.
        (build_enumerator): In pedantic mode, cast to `int' those that
        don't.

2000-07-25  Rodney Brown  <RodneyBrown@pmsc.com>

        * config/alpha/osf.h (SIZE_TYPE, PTRDIFF_TYPE): New.

Tue Jul 25 23:08:33 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.md (cmpgtdi_t): Must be split.
        (cmpgtdi_t+1): New splitter.

2000-07-25  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (_cpp_check_directive): Issue -Wtraditional
        warnings for indented directives even if we are skipping.

2000-07-25  Nathan Sidwell  <nathan@codesourcery.com>

        * invoke.texi (strict-prototypes): Remove.
        * extend.texi (Deprecated Features): Add strict-prototypes.
        (Backwards Compatibility): New node.

2000-07-25  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (andsi_1+1): Allow HImode.
        (andsi_1+2): Require q_regs_operand.

2000-07-25  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (call_pop): Check operands[0],
        not operands[1]. Only check SYMBOL_REF_FLAG for a SYMBOL_REF.
        (call): Likewise.
        (call_value_pop): Only check SYMBOL_REF_FLAG for a SYMBOL_REF.
        (call_value): Likewise.

2000-07-25  Zack Weinberg  <zack@wolery.cumb.org>

        * toplev.c (pipe_closed): Delete.
        (crash_signal): New.  Generate ICE for a fatal signal.
        (float_signal): Call crash_signal outside a float-handler
        block, not abort.
        (main): Install crash_signal as handler for core-dumping signals.

2000-07-25  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.c (print_operand, case 'T'): New case.

        * rs6000.md (call_indirect_aix32): Convert to expander of
        scheduled instructions.
        (call_indirect_aix64): Likewise.
        (call_value_indirect_aix{32,64}): Likewise.
        (call, call_value): Invoke expanders for AIX.  Fall through to
        matchers for SysV.
        (call_indirect_nonlocal_aix{32,64}): New patterns (ctr and lr).
        (call_value_indirect_nonlocal_aix{32,64}): New patterns.
        (call_nonlocal_aix32): Remove CALL_LONG alternative.  Operand 1
        only "g" constraint.
        (call_nonlocal_aix64): Likewise.
        (call_value_nonlocal_aix{32,64}): Likewise.
        (call_nonlocal_sysv): New pattern for ctr, lr, and symbolic
        operands.
        (call_value_nonlocal_sysv): New pattern.
        (indirect_jump{si,di}): Use new 'T' modifier.
        (tablejump{si,di} matchers): Likewise.
        (return_internal_{si,di}): Likewise.
        (return_eh_{si,di}): Likewise.

2000-07-24  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (ia64_print_operand): Handle "%,".
        * config/ia64/ia64.h (PRINT_OPERAND_PUNCT_VALID_P): Likewise.
        * config/ia64/ia64.md (movdi_internal): Use it.

2000-07-24  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c: Warn about unary + if -Wtraditional.
        * cpplex.c (lex_line): Always set BOL on the first token of a line.

2000-07-24  Michael Meissner  <meissner@redhat.com>

        * d30v.h (FUNCTION_ARG_KEEP_AS_REFERENCE): Delete references to
        unsupported macro.

2000-07-24  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.c (emit_multi_reg_push): Generate a
        REG_FRAME_RELEATED_NOTE that is compatable with the code in
        dwarf2out_debug_frame_expr.

2000-07-24  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c: Complain if DWARF2_DEBUGGING_INFO is defined without
        UNALIGNED_INT_ASM_OP.
        (def_cfa_1): Don't emit def_cfa_register or def_cfa_offset to adjust
        a location expression.
        (dwarf2out_frame_debug_expr): Lose cfa_old_reg stuff.  Don't
        assume indirect access if we're saving the CFA address exactly.

        * Makefile.in (bootstrap): Move -BstageN/ to the end.

2000-07-24  Jakub Jelinek  <jakub@redhat.com>

        * tradcpp.c (main): Update max_include_len for cpp_include_defaults
        as well.

2000-07-24  Michael Meissner  <meissner@redhat.com>

        * invoke.texi (D30V Options): Add d30v options.

Mon Jul 24 02:04:52 2000  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (alloc_pre_mem): Do not alloc TRANSPOUT, it is not
        needed by our gcse pass anymore.
        (free_pre_mem): Corresponding changes.
        (compute_pre_data): Do not call compute_transpout anymore.

        * gcse.c (alloc_avail_expr_mem): Kill unused 'u_bitmap'.
        (free_avail_expr_mem, alloc_pre_mem, free_pre_mem): Corresponding
        changes.

        * gcse.c (free_pre_mem): Do not free ANTLOC and AE_KILL here.
        (compute_pre_data): Do it here instead.

        * gcse.c (alloc_pre_mem, free_pre_mem): Delete unused bitmap
        'temp_bitmap'.
        (pre_delete): Corresponding changes.

2000-07-23  Mark Mitchell  <mark@codesourcery.com>

        * c-semantics.c (make_rtl_for_local_static): Use TREE_ASM_WRITTEN
        to figure out whether or not a variable has already been emitted.

Sun Jul 23 14:49:12 2000  Jason Eckhardt  <jle@cygnus.com>

        * config/i860/i860.md (untyped_call expander): Use GEN_CALL
        instead of gen_call.

Sun Jul 23 11:52:03 2000  George Helffrich (george@gly.bris.ac.uk)

        * dbxout.c (dbxout_type, case COMPLEX_TYPE): Fix length field in stab.

2000-07-23  Kazu Hirata  <kazu@hxi.com>

        * h8300.c: Fix formatting.

2000-07-23  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-typeck.c (c_expand_start_case): Change -Wtraditional pedwarn
        for `long' switch expression into a plain warning.

        * c-lex.c (init_lex): Keep the "inline" keyword in C99 mode.
        (yylex): Don't pedwarn for "inline" in C99 mode.

        * bitmap.c (debug_bitmap_file): Cast pointers to PTR for printing
        with %p.
        * ggc-page.c (debug_print_page_list, alloc_page, free_page,
        ggc_alloc): Likewise.
        * bb-reorder.c (dump_scope_forest_1): Likewise.

2000-07-22  Aldy Hernandez  <aldyh@redhat.com>

        * reload.c (find_reloads_toplev): Add new parameter
        "address_reloaded".
        (find_reloads): Add new parameter to find_reloads_toplev calls.

2000-07-22  Jeffrey Oldham  <oldham@codesourcery.com>

        * collect2.c (main): Typo fixed.
        * diagnostic.c: Typo fixed.
        * dwarf2out.c (dwarf2out_frame_debug_expr): Typo fixed.
        * eh-common.h: Typo fixed.
        * emit-rtl.c (start_sequence): Typo fixed.
        * flow.c (find_label_refs): Typo fixed.
        (calculate_global_regs_live): Typo fixed.
        (mark_regno_cond_dead): Typo fixed.
        (create_edge_list): Typos fixed.
        (verify_edge_list): Typo fixed.
        * ggc-common.c (ggc_mark_rtx_children): Typo fixed.
        * loop.c (strength_reduce): Typo in function name fixed.
        * rtl.h: Added comments.  Typo in function name fixed.
        * rtlanal.c: Typo in function name fixed.
        (insn_dependant_p): Rename to ...
        (insn_dependent_p): ... this.
        (computed_jumo_p): Typo fixed.

2000-07-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (__FUNCTION__): Wrap definition in #ifndef.

2000-07-21  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.h (SIZE_TYPE): Define.

2000-07-21  Mark Mitchell  <mark@codesourcery.com>

        * ssa.c (rename_insn_1): Don't rename registers that are
        CLOBBERed.

2000-07-21  Zack Weinberg  <zack@wolery.cumb.org>

        * diagnostic.c (trim_filename, fancy_abort): Moved here from
        rtl.c.
        (fatal_function, set_fatal_function): Removed.
        (fatal): Don't prepare for or call the fatal_function.
        (diagnostic_lock, error_recursion): New.
        (diagnostic_for_decl, report_diagnostic): Guard against
        re-entering the error reporting routines.
        (fancy_abort): Assume function is not NULL.

        * errors.c (fancy_abort): New.  Assume function is not NULL.
        * tradcpp.c (fancy_abort): Assume function is not NULL.

        * system.h: Provide default definition of __FUNCTION__.
        * rtl.h: Use __FUNCTION__ not __PRETTY_FUNCTION__ throughout.
        Always use __FUNCTION__ in definition of abort.
        * tree.h: Likewise.
        * varray.h: Likewise.
        * toplev.h: Likewise.  Don't prototype set_fatal_function.

2000-07-20  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/aix43.h (CPP_SPEC): Define __LONG_MAX__ correctly
        in 64-bit mode.
        * glimits.h: Don't do #if defined for ARCH_PPC.

        * config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): All
        constants of size no larger than a pointer should go in the TOC.
        Add 'MODE' parameter.
        (LEGITIMIZE_RELOAD_ADDRESS): Add MODE parameter to
        ASM_OUTPUT_SPECIAL_POOL_ENTRY_P.
        (ASM_OUTPUT_SPECIAL_POOL_ENTRY): Likewise.
        * config/rs6000/aix.h (SELECT_RTX_SECTION): Likewise.
        * config/rs6000/netware.h (SELECT_RTX_SECTION): Likewise.
        * config/rs6000/rs6000.c (constant_pool_expr_1): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_emit_move): Likewise.
        (rs6000_select_rtx_section): Likewise.
        (output_toc): Deal properly with outputting small constants like
        HImode, and SFmode in 32-bit mode, and DFmode in 64-bit mode.
        * config/rs6000/sysv4.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Add
        MODE parameter.  Put small constants in the TOC.

        * config/rs6000/rs6000.c (easy_fp_constant_p): All constants are
        easy in SImode.
        (rs6000_emit_move): When reload calls us with an illegitimate
        address, exit early.  Move the change_address calls to one place
        at the end of the routine.  Merge the SImode and DImode expanders.
        When called by reload to put an integer into a FP register, force
        it to memory.

        * config/rs6000/rs6000.c (struct toc_hash_struct): Add 'key_mode'
        field.
        (rs6000_hash_constant): Hash mode too.
        (toc_hash_function): Allow for key_mode.
        (toc_hash_eq): Structures are different if key_mode differs.
        (output_toc): Add 'mode' parameter.  Save key_mode.
        * config/rs6000/rs6000.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY):
        Pass 'mode' parameter.
        * config/rs6000/rs6000-protos.h (output_toc): Add 'mode' param.

        * config/rs6000/rs6000.c (output_toc): Use RS6000_OUTPUT_BASENAME
        for vtable references.

        * config/rs6000/rs6000.h (PREFERRED_RELOAD_CLASS): If we have a
        choice, don't put integer values in FP regs.

Thu Jul 20 18:13:52 2000  Jeffrey A Law  (law@cygnus.com)

        * flow.c (verify_flow_info): Revamp code to verify that the
        head and end of each basic block are in the insn chain.

Thu Jul 20 18:02:35 2000  Michael Matz <matzmich@cs.tu-berlin.de>

        * gcse.c (record_one_set): Prepend instead of append onto
        reg_set_table, making it O(n) instead O(n^2).
        * lcm.c (compute_antinout_edge,compute_laterin,compute_available):
        Use a queue instead of a stack as worklist.

2000-07-20  Kazu Hirata  <kazu@hxi.com>

        * h8300.c (two_insn_adds_subs_operand): Fix a typo.
        * h8300.h (OK_FOR_T): New.
        (EXTRA_CONSTRAINT): Support OK_FOR_T.
        * h8300.md: Use inc/dec.[wl] for increment/decrement
        by 1 and 2 in HI and SI modes.

2000-07-20  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (ASM_OUTPUT_MI_THUNK): Handle DELTA values
        larger than 14 bits.

2000-07-20  Zack Weinberg  <zack@wolery.cumb.org>

        * cppmacro.c (CAN_PASTE_AFTER): New macro.
        (count_params): Don't set GNU_REST_ARGS on anything.
        (save_expansion): Set PASTE_LEFT only on tokens for which
        CAN_PASTE_AFTER is true, or which are named operators.

        * cpplex.c (parse_args): Distinguish between a rest argument
        given one empty argument, and a rest argument given zero arguments.
        (maybe_paste_with_next): Look for VOID_REST tag, and trigger
        deletion of previous token based on that.
        (get_raw_token): Flatten some control structure.

        * cpplib.h (CPP_LAST_EQ): Correct.
        (VOID_REST): New token flag.
        (GNU_REST_ARGS): Delete.

        * tradcpp.c (main): Don't munge -D options.
        (make_definition): Bring -D handling in line with cpplib.
        (do_define): Strip all leading whitespace from macro definitions.

2000-07-20  David Billinghurst <David.Billinghurst@riotinto.com.au>

        * Makefile.in (tradcpp): Depend on intl.o and version.o.

2000-07-20  Bruce Korb  <bkorb@gnu.org>

        * fixincl/check.tpl: strip the platform specific types before testing
        * fixincl/fixfixes.c(gnu_type_fix): use platform specific types
        * fixincl/fixincl.tpl: use platform specific types
        * fixincl/fixlib.h: include the platform specific types
        * fixincl/inclhack.def(gnu_types): don't supply the types
        * fixincl/fixincl.x: regen

2000-07-19  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (HARD_REGNO_MODE_OK): Don't allow XFmode in
        GR_REGS.

2000-07-19  Zack Weinberg  <zack@wolery.cumb.org>

        * tradcpp.c (rescan): Do not recognize directives when the #
        is indented.

2000-07-19  Zack Weinberg  <zack@wolery.cumb.org>

        Implement C++ named operators.

        * cpplib.h (TTYPE_TABLE): Move CPP_MIN and CPP_MAX into block
        of operators allowed in #if and having an _EQ variant.  Add
        CPP_MIN_EQ, CPP_MAX_EQ, and CPP_DEFINED.
        (cpp_token flags): Add NAMED_OP.
        (enum node_type): Add T_OPERATOR.
        (struct cpp_hashnode): Add code slot to value union.
        * cpphash.h (spec_nodes): Remove n_defined.

        * cpplex.c (lex_line): Convert T_OPERATOR nodes to their proper types.
        (spell_token, can_paste, maybe_paste_with_next): Handle named operators.
        (is_macro_disabled): Tweak error messages.

        * cpplib.c (get_define_node): Disallow all named operators as
        macro names.  Tweak error messages.
        (_cpp_init_stacks): Don't set up spec_nodes->n_defined.

        * cppinit.c (builtin_array): Add entries for the named operators.
        * cppexp.c (lex): Check for CPP_DEFINED token.
        (priority table): Add entries for CPP_MIN and CPP_MAX.
        (_cpp_parse_expr): Handle CPP_MIN and CPP_MAX.

2000-07-19  Bernd Schmidt  <bernds@cygnus.co.uk>

        * gcse.c (INSN_CUID): If ENABLE_CHECKING, abort if the uid is
        larger than the array of cuids.
        (alloc_gcse_mem): Use uid_cuid rather than INSN_CUID when computing
        cuids.

2000-07-19  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixincl.c:  Convert to using a table of environment variables
        and activate the auto-edit marker on the fixed output files.
        * fixinc/fixlib.h:  Define the environment table
        * fixinc/fixincl.sh: export the ${INPUT} dir
        * fixinc/check.tpl: likewise

2000-07-18  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.c (.h spec): Fix typo.

Wed Jul 19 01:22:15 CEST 2000  Marc Espie  <espie@cvs.openbsd.org>

        * Makefile.in: Fix tradcif.c path.

2000-07-18  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (TTYPE_TABLE): Rearrange to use only two per-entry
          macros, not five.

        * cpphash.h (TOKEN_NAME): New macro.
        (_cpp_spell_operator): Deleted.
        (token_spellings): Now _cpp_token_spellings.

        * cppexp.c: Use TOKEN_NAME or TYPE_NAME, not _cpp_spell_operator.
        * cpplex.c: Use OP and TK macros when expanding the
        TTYPE_TABLE.  Eliminate token_names.  For non-OPERATOR tokens,
        store the stringification of the enumeration name (CPP_CHAR,
        etc.) in the name slot of token_spellings.
        Use TOKEN_NAME and/or TOKEN_SPELL, do not reference
        token_spellings directly.
        * cpplib.c: Use TOKEN_SPELL.

        * cpplex.c (_cpp_push_token): If the token being pushed back
        is the previous token in this context, just subtract one from
        context->posn.
        * cppmacro.c (save_expansion): Clear aux field when storing a
        placemarker.

2000-07-18  Jakub Jelinek  <jakub@redhat.com>

        * cpplex.c (cpp_scan_buffer): Output line command even at the stop
        buffer, provided it is not NULL.

2000-07-18  Alexandre Oliva  <aoliva@redhat.com>

        * c-decl.c (duplicate_decls): Do not call make_var_volatile() in
        case of invalid volatile re-declaration.

2000-07-18  Jakub Jelinek  <jakub@redhat.com>

        * calls.c (store_arg): Return non-zero if sibcall_failure is desired.
        (expand_call): Adjust caller.

2000-07-17  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.h (report_diagnostic): Change prototype.

        * diagnostic.c (output_do_verbatim, diagnostic_for_asm,
        diagnostic_for_decl):  Change prototype.
        (error_with_decl, warning_with_decl, pedwarn_with_decl, warning,
        error, warning, error_with_file_and_line,
        warning_with_file_and_line, pedwarn_with_file_and_line, fatal):
        Adjust call to report_diagnostic, diagnostic_for_decl.
        (error_for_asm, warning_for_asm): Adjust call to diagnostic_for_asm.
        (output_verbatim, verbatim): Adjust call to output_do_verbatim.

        * c-errors.c (pedwarn_c99): Adjust call to report_diagnostic. End
        varaible argument list.

2000-07-17  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c: Don't include hashtab.h.  Most macro-handling code
        moved to cppmacro.c.
        (hash_HASHNODE, eq_HASHNODE, _cpp_dump_macro_hash,
        dump_hash_helper): Delete.
        (expand_hash, higher_prime_number, _cpp_lookup_with_hash,
        cpp_forall_identifiers): New. Implement specialized version of
        Vlad's expandable hash table.
        (cpp_lookup): Use new functions.
        (_cpp_init_macros, _cpp_cleanup_macros): Adjust for new
        implementation.
        * cppmacro.c: New file.
        * cppinit.c (dump_macros_helper): New.
        (cpp_finish): Iterate over the identifier table directly.
        * cpplex.c (parse_name): Calculate the hash of the identifier
        while we scan it.  Use _cpp_lookup_with_hash when we can.

        * cpphash.h: Update prototypes.
        (xcnewvec, HASHSTEP): New helper macros.
        * cpplib.h: Update prototypes.
        * Makefile.in (LIBCPP_OBJS): Add cppmacro.o.
        (cppmacro.o): New rule.
        (cpphash.o): Update deps.

        * cppmain.c: Do not set pfile->printer if no_output is on.

2000-07-15  Neil Booth  <neilb@earthling.net>

        * cpplib.c: Change all directive-handler functions to return
        void, not int.
        * cpphash.h: Update typedefs.

2000-07-17  Geoffrey Keating  <geoffk@cygnus.com>

        * configure: Regenerate.

        * extend.texi (Extended Asm): Mention that a memory clobber
        does not count as a side-effect.

        * unroll.c (copy_loop_body): Fix one instance of using host
        arithmetic on the target; fixes loop-4 on a 32-bit -> 64-bit
        cross-compile.

        * tlink.c (scan_linker_output): Tweak for output of AIX ld.

2000-07-17  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (movdi): Split out load address code.
        New post-reload splitter for symbolic operands.
        (movdi_internal): Abort if we didn't split symbolic operands
        when we should have.
        * config/ia64/ia64.c (ia64_expand_load_address): New, from movdi bits.
        (ia64_reorg): Split insns when not optimizing.
        * config/ia64/ia64-protos.h (ia64_expand_load_address): Declare.

Mon Jul 17 23:43:26 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * real.h (REAL_VALUE_TO_TARGET_LONG_DOUBLE): Use LONG_DOUBLE_TYPE_SIZE
        instead of MAX_LONG_DOUBLE_TYPE_SIZE to decide output format.

2000-07-17  Chandrakala Chavva   <cchavva@cygnus.com>

        * loop.c (check_dbra_loop) : Changed loop_continue to loop->cont.

2000-07-17  Jason Merrill  <jason@redhat.com>

        * Makefile.in (clean): Remove libgcc directory.

        * configure.in (-Wno-long-long check): Use higher-level macros.

2000-07-17  Zack Weinberg  <zack@wolery.cumb.org>

        * simplify-rtx.c (simplify_binary_operation): Recognize
           (compare (gt[u] (cc) 0) (lt[u] (cc) 0)).
        (simplify_ternary_operation):  Do not examine MODE_BITSIZE of
           a CONST_INT, it will always be zero.

2000-07-17  Chandrakala Chavva   <cchavva@cygnus.com>

        * loop.c (check_dbra_loop) : Return if more than one condition is
        present to control the loop.

Mon Jul 17 08:26:35 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * mips.c (mips_expand_prologue): Don't calculate the last argument
        register unless we need it.  When we are calculating this, make
        sure FUNCTION_ARG is giving us a REG.

2000-07-17  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * flow.c (libcall_dead_p): Use single_set to verify the insn
        has only one set and get for analysis.
        (propagate_one_insn): Don't pass the PATTERN of the insn.

2000-07-17  Mark Klein <mklein@dis.com>

         * pa.c (emit_hpdiv_const): Update to match new pattern for udivsi3.

2000-07-17  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * Makefile.in (TARGET_GETGROUPS_T): New configuration variable.
        * configure.in (TARGET_GETGROUPS_T): Evaluate.
        * sys-protos.h (getgroups): Use TARGET_GETGROUPS_T for array type
        of second argument of getgroups.
        * configure, config.in: Rebuilt.

2000-07-17  Geoffrey Keating  <geoffk@cygnus.com>

        * simplify-rtx.c (simplify_relational_operation): Two signed
        values with equal high words are less/greater than each other if
        their low words are less/greater when considered as unsigned.

Mon Jul 17 02:37:06 2000  Marc Espie <espie@openbsd.org>

        * configure.in (vax-*-openbsd):  Change to new style configuration,
        add collect2/float_format information.
        * configure:  Rebuilt.
        * config/vax/openbsd1.h:  New.
        * config/vax/openbsd.h:  New.
        * config/vax/t-openbsd:  New.

2000-07-17  Chip Salzenberg  <chip@valinux.com>

        * c-common.c (shorten_compare): Quiet warnings about unsigned
        comparisons with zero when they occur in a system header.

2000-07-17  Joseph S. Myers  <jsm28@cam.ac.uk>

        * invoke.texi (-pedantic): Refer to ISO C instead of ANSI C, and
        update to describe current practice.

        * glimits.h (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Define for C99.

        * contrib.texi, cpp.texi, extend.texi, invoke.texi: Update
        references to C9X.  Change references to -fstd and -flang-isoc9x
        to refer to -std.

        * c-common.c (scan_char_table): Allow "z" length modifiers on
        diouxXn formats.
        (check_format_info): Use TYPE_DOMAIN on the type matched against
        for "z" formats, to retrieve the language size_t rather than the
        internal one.

        * c-common.c (check_format_info): Do not make a pedantic objection
        to the 'L' length modifier if used with a floating point type
        character.

        * c-lex.c (yylex): Don't pedwarn for hexadecimal floating point
        constants in C99 mode.

2000-07-17  Kazu Hirata  <kazu@hxi.com>

        * h8300.md: Fix the format of mac.
        (movsi_h8300hs): Output a tab after stmac instead of a space.

        * h8300.c (two_insn_adds_subs_operand): Improve code for detecting
        profitable adds/subs sequences.

        * fold-const.c: Fix comment typos.

2000-07-16  Laurynas Biveinis  <lauras@softhome.net>

        * cppfiles.c (read_name_map): Set map_list_ptr->map_list_map to NULL.

2000-07-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fixinc/fixfixes.c (emit_gnu_type): Avoid string concatenation.

2000-07-16  Neil Booth  <NeilB@earthling.net>

        * cpplex.c: Update comments.
        * README.Portability: Small update.

2000-07-16  Neil Booth  <NeilB@earthling.net>

        * README.Portability:  Small update.

2000-07-15  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64-protos.h (ia64_move_ok): Prototype.
        * config/ia64/ia64.c (ia64_move_ok): New function.
        * config/ia64/ia64.md (movqi, movqi_internal): Use it.
        (movhi, movsi, movdi, movsf, movdf, movxf): Likewise.

2000-07-15  Zack Weinberg  <zack@wolery.cumb.org>

        * cpphash.c (save_expansion): Clear PREV_WHITE on tokens
        immediately following a paste operator.
        * cppinit.c (sort_options): New function (only for HOST_EBCDIC).
        (cpp_reader_init): Call it, if HOST_EBCDIC.
        (cpp_handle_options): Do not sort option list here.
        (handle_option): Rename to cpp_handle_option and export.
        * cpplex.c (cpp_scan_buffer_nooutput, cpp_scan_buffer): Use
        _cpp_get_token directly.
        (cpp_scan_line): Return 0 at EOF, 1 otherwise.
        * cpplib.c (cpp_push_buffer): Don't set new->lineno to 1.
        * cpplib.h: Prototype cpp_handle_option.  Update prototype of
        cpp_scan_line.

2000-07-15  Richard Henderson  <rth@cygnus.com>

        * fold-const.c (extract_muldiv): Don't optimize past an unsigned
        cast around an expression.  Tidy other unsigned tests.

2000-07-15  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (doing_line_wrapping, line_wrapper_printf, notice,
        v_error_with_decl, v_warning_with_decl, v_pedwarn_with_decl): Remove.
        (v_message_with_decl): Rename to ...
        (format_with_decl): ... this. Tweak
        (diagnostic_for_decl): New function.
        (fatal_io_error): Use verbatim in lieu of notice.
        (announce_function): Use verbatim.
        (default_print_error_function): Likewise.
        (error_with_decl, warning_with_decl, pedwarn_with_decl): Use new
        infratructure.

2000-07-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * mips.c (function_arg_pass_by_reference): Don't do automatic
        aggregate initialization.
        (machine_dependent_reorg): Initialize variable `mode'.

        * mips.md (absdi2): Change variable `regno1' to unsigned int.
        (reload_indi): Rename loword/hiword to lo_word/hi_word to avoid
        conflicts with sys/param.h macro of the same name.
        (reload_outdi): Likewise.

2000-07-15  Michael Meissner  <meissner@redhat.com>

        * fold-const.c (fold): When optimizing FOO++ == CONST into ++FOO
        == CONST + INCREMENT, don't overwrite the tree node for FOO++,
        create a new node instead.

2000-07-15  Neil Booth  <NeilB@earthling.net>

        * README.Portability: Correct example about calling a function
        through a pointer to function.  Format wide paragraphs.

2000-07-15  Michael Meissner  <meissner@redhat.com>

        * README.Portability: Update integer suffixes and function
        prototype sections.

2000-07-15  Neil Booth  <NeilB@earthling.net>

        * README.Portability: Small update.

2000-07-15  Neil Booth  <NeilB@earthling.net>

        * README.Portability: New file.

Fri Jul 14 18:13:53 2000  Mark P Mitchell  <mark@codesourcery.com>

        * INSTALL: Give special instructions for building GCC on Irix 6.
        * config/mips/x-iris6 (CC): Don't set it.
        (OLDCC): Likewise.

2000-07-14  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): If we store the CFA
        register in the stack and later in another register, use the new
        register.

Fri Jul 14 10:25:53 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.md: (absdi2): Handle sign_extend for
        second operand.

2000-07-14  Nathan Sidwell  <nathan@codesourcery.com>

        * cpplib.c (do_pragma_dependency): Tidy warning messages.

2000-07-14  Zack Weinberg  <zack@wolery.cumb.org>

        * .cvsignore: Correct typo.

2000-07-13  Mark Mitchell  <mark@codesourcery.com>

        * .cvsignore: Add generated YACC files.
        * objc/.cvsignore: New file.

2000-07-14  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (adjust_column): New funcion.
        (skip_whitespace): Use it.
        (skip_block_comment): Use it, and warn about /*/* with
        -Wcomments.

2000-07-14  Neil Booth  <NeilB@earthling.net>

        * cpphash.c (struct macro_info): Add new members.
        (_cpp_free_definition): Delete the macro directly.
        (count_params): Return void, with first token of
        expansion in struct macro_info on success.
        (parse_define): Return int.  Hoist syntax checking from
        save_macro_expansion.  Leave call to save_expansion to
        _cpp_create_definition.
        (alloc_macro): Needs just 2 arguments.
        (free_macro): Delete.
        (save_expansion): Don't perform syntax check.
        (_cpp_create_definition): Call save_expansion.

2000-07-13  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * genrecog.c (write_header): Split long string.

        * cpphash.c (macro_info): Don't use the `signed' keyword.

        * system.h (alloca): Prototype if __GNUC__ && __SIZE_TYPE__.

2000-07-13  Jakub Jelinek  <jakub@redhat.com>

        * calls.c (stored_args_map): New variable.
        (check_sibcall_argument_overlap_1): New.
        (check_sibcall_argument_overlap): New.
        (expand_call): Initialize stored_args_map.
        Call check_sibcall_argument_overlap.

2000-07-13  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c: move EXIT_BROKEN to header, add sub-expr max count
        (emit_gnu_type): utility procedure for gnu_type_fix
        (gnu_type_fix): implement various pre-processor guards around
        standard types so these types can be defined over and over
        * fixinc/fixincl.tpl: add a "gnu_type_map" that forces the standard
        types alluded to above will have GNU-compliant base types
        * fixinc/fixlib.h: add EXIT_BROKEN define and the gnu_type_map struct
        * fixinc/inclhack.def: add test_text entries and utilize the new
        "gnu_types" fix for the ptrdiff_t, size_t and wchar_t types.
        * fixinc/fixincl.x: regenerate

2000-07-12  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>

        * diagnostic.c (vline_wrapper_message_with_location,
        v_message_with_file_and_line, v_error_with_file_and_file,
        v_error_for_asm, v_warning_for_asm, vfatal,
        v_warning_with_file_and_line, v_pedwarn_with_file_and_line,
        vsorry, verror, vwarning, vpedwarn): Remove.
        (diagnostic_for_asm): New function.
        (pedwarn, error, warning, pedwarn_with_file_and_line,
        error_with_file_and_line, warning_with_file_and_line, sorry,
        error_for_asm, warning_for_asm, fatal): Reimplement.
        (finish_diagnostic): Clear diagnostic info as well.

2000-07-13  Neil Booth  <NeilB@earthling.net>

        * c-common.h (flag_digraphs): New.
        * c-decl.c (c_decode_option): Set flag_digraphs as appropriate.
        * c-lex.c (yylex): Use flag_digraphs to decide whether to
        honour digraphs.

2000-07-13  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.c (do_spec_1): Add new %B operator.
        (set_input): Prepare for %B.

        (link_command_spec): Move up with the other tm.h-
        overrideable specs.  Factor out the portion conditional on
        LINK_LIBGCC_SPECIAL into a new spec, %(link_libgcc).
        (struct compiler): Just have a single spec string.  All users
        updated.
        (default_compilers): Remove unnecessary braces.
        (static_specs): Update.

        (trad_capable_cpp, cpp_options, cc1_options, asm_options): New
        named specs.
        (C and assembly specs): Use the new named specs, as appropriate.

        * objc/lang-specs.h: Use the new named specs.
        Remove unnecessary braces.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.c (execute): If a subprocess gets a fatal signal, report
        strsignal() of the signal number, and ask for a bug report.
        Do not do this for SIGPIPE if there's already been an error.

        * tradcpp.c: Don't include signal.h.  Don't catch SIGPIPE.
        Delete pipe_closed.

        * tradcif.c: Remove.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

        * final.c (profile_function): Do not emit profile counters in
        the data section, if NO_PROFILE_COUNTERS is defined.
        * tm.texi: Document NO_PROFILE_COUNTERS.  Update doc for
        FUNCTION_PROFILER.

        * config/i386/linux.h (NO_PROFILE_COUNTERS): Define.
        (FUNCTION_PROFILER): Just emit a call to mcount.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

        * tradcpp.c (main): Rename 'perror' label to 'sys_error'.

        * cppexp.c, cpphash.c, cpphash.h, cppinit.c, cpplex.c,
        cpplib.c, cpplib.h: Eradicate all traces of code dependent on
        traditional, lang_chill, or lang_fortran.

        * cppfiles.c: #undef strcmp to suppress warning about macros
        used without arguments.
        (_cpp_execute_include): Use f, not fname, in "No include path"
        error.
        (_cpp_pop_file_buffer): New function.
        * cpplib.c: Don't include <sys/mman.h>.
        (cpp_push_buffer): Set line_base and lineno in new buffer.
        (cpp_pop_buffer): Use _cpp_pop_file_buffer.

        * cpplex.c: Move all prototypes and structure declarations to the
        top of the file.  Properly parenthesise some macro arguments.
        (cpp_scan_line): New function.
        (special_symbol [case T_INCLUDE_DEPTH]): Use pfile->include_depth,
        don't need to walk up the stack counting.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (combine_strings): Emit a pedantic warning when a
        string length is greater than the minimum ANSI C is required
        to support.

Wed Jul 12 13:24:30 2000  Jeffrey A Law  (law@cygnus.com)

        * pa/xm-pa64.h (NO_SYS_SIGLIST): Kill.
        * d30v/xm-d30v.h (NO_SYS_SIGLIST): Kill.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-decl.c (define_label): Warn about identifier conflicts with
        labels in traditional C.

        * c-parse.in (unop +): Warn about the unary plus operator for
        traditional C.

        * c-typeck.c (store_init_value): Warn about automatic aggregate
        initialization for traditional C.

        * invoke.texi (-Wtraditional): Document new warnings.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

        * Makefile.in (c-errors.o): Fix thinko in dependency.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

        * gcc.c (C specs [!USE_CPPLIB]): Invoke tradcpp if any of
        -traditional, -ftraditional, or -traditional-cpp was given.
        Do not pass -traditional to the preprocessor.
        (.S spec): Likewise.  Don't bother defining __ASSEMBLER__, the
        preprocessor does it automatically.
        * objc/lang-specs.h: Likewise.  Don't bother defining __OBJC__.

        * ch/lang-specs.h: Always use tradcpp.  Do not pass
        -traditional, -trigraphs, or -pedantic to the preprocessor.
        * f/lang-specs.h (.F spec): Likewise.  Don't bother defining
        _LANGUAGE_FORTRAN.

2000-07-12  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c (LOGICAL): Delete macro.
        (_cpp_parse_expr): Do not use UNARY for unary +.  Implement ||
        and && directly.

        * cpphash.c (HASHSIZE): Increase to 4096.
        (struct hashdummy): Add hash field.
        (eq_HASHNODE): Compare unreduced hashes, then lengths, then
        the string values using memcmp.
        (cpp_lookup): Set dummy.hash.

Wed Jul 12 13:15:16 2000  Marc Espie <espie@openbsd.org>

        * configure.in (m88k-openbsd): Express configuration using new fragment
        style.
        * configure: Rebuilt.
        * m88k/aout-dbx.h: New.
        * m88k/openbsd.h: New.
        * m88k/xm-openbsd.h: New.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * expr.c (expand_expr): Return const0_rtx, not error_mark_node.

2000-07-12  Richard Henderson  <rth@cygnus.com>

        * reload.c (push_secondary_reload): Make sure to add the new
        reload at the end, after acquiring secondary memory.

2000-07-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpplex.c (is_macro_disabled): Use CPP_WTRADITIONAL.

        * c-decl.c (set_current_function_name_declared, anon_aggr_type_p,
        lang_expand_stmt): Mark parameters with ATTRIBUTE_UNUSED.

        * c-parse.in (stmt): Delete unused variables.

        * convert.c (convert_to_vector): Likewise.

        * gensupport.c (process_rtx): Declare attr as `rtvec' not `rtx'.

        * tree.c (finish_vector_type): Prototype.

2000-07-12  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c: use xmalloc
        * fixinc/fixincl.c(initialize): set program name for xmalloc
        * fixinc/fixlib.c(must_malloc): obsolete
        (is_cxx_header): no longer used - disabled
        (skip_quote): inserted and disabled for future use
        * fixinc/fixlib.h: reflects above
        * fixinc/fixtests.c: removed dinkleberries

2000-07-12  Neil Booth  <NeilB@earthling.net>

        * cpphash.h: (TOKEN_SPELL) Pulled from cpplex.c.
        * cpplex.c (TOKEN_SPELL) Move to cpphash.h.

        * cpphash.c: (struct macro_info, alloc_macro, free_macro,
        struct toklist_dummy): New.
        (cpp_free_definition): Free macros with free_macro.
        (count_params): Don't save paramter spellings.  Save macro
        information in a struct macro_info.
        (parse_define): Don't allocate a token list.
        (save_expansion): Allocate the macro's token list, and
        save parameter spellings if necessary.  Use TOKEN_SPELL.
        (cpp_create_definition): Make list const.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

        * c-typeck.c (pedwarn_c99): Move to
        * c-errors.c: ... Here.
        * toplev.h (verror, vwarning, vpedwarn): Remove prototypes.
        * diagnostic.c (verror, vwarning, vpedwarn): Make static.
        * Makefile.in (C_AND_OBJC_OBJS): Include c-errors.o
        (c-errors.o): List dependency.

2000-07-12  Mark Mitchell  <mark@codesourcery.com>

        * c-parse.c: Remove.
        * c-parse.h: Likewise.
        * c-parse.y: Likewise.
        * objc/objc-parse.c: Likewise.
        * objc/objc-pasre.y: Likewise.

2000-07-11  Rodney Brown  <RodneyBrown@pmsc.com>

        * gcc.texi: Fix minor typos
        * extend.texi: Fix minor typos

2000-07-11  Marc Espie <espie@openbsd.org>

        * collect2.c (main): Recognize .lo as object files.

2000-07-11  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * pa.c (hppa_encode_label): Store labels in gc memory when ggc_p is
        true.

        * aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Extend test to detect systems
        with MAP_ANONYMOUS and MAP_ANON.
        * configure, config.in: Rebuilt.

2000-07-12  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (save_output_state): Remove.
        (restore_output_state): Likewise.
        (clear_text_info): New function.
        (clear_diagnostic_info): Likewise.
        (output_text_length, is_starting_newline, output_prefix,
        line_wrap_cutoff, ideal_line_wrap_cutoff, prefix_was_emitted_for,
        prefixing_policy, output_buffer_ptr_to_format_args): New macros
        (set_real_maximum_length, output_set_maximum_length,
        output_set_prefix, output_get_prefix, output_set_maximum_length,
        output_destroy_prefix, init_output_buffer,
        reshape_diagnostic_buffer, output_space_left, output_emit_prefix,
        output_add_newline, output_add_character, output_add_space,
        output_append_r, output_append, wrap_text, output_format,
        output_do_printf, output_printf, output_do_verbatim,
        output_verbatim, verbatim): Use them.
        (output_clear): Split into cleat_text_info and
        clear_diagnostic_info.
        (struct output_state): Move to...

        * diagnostic.h: ...Here
        (struct output_buffer): Adjust.

2000-07-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (parse_name): No longer inline (premature optimization).
        (do_pop_context): Fold into pop_context.
        (pop_context): Returns int.
        (lex_next): Hoist test for end of directive into pop_context.
        (push_macro_context): Returns int; takes just reader and token.
        Hoist test for excessive nesting to caller.
        (push_arg_context): Returns void; takes just reader and token.
        Do not call stringify_arg or get_raw_token.
        (get_raw_token): Convert tail recursion through push_arg_context
        to a loop at this level.  Call stringify_arg here if appropriate.
        (maybe_paste_with_next): Convert tail recursion to a while loop.
        Hoist test of paste_level to caller.

        (stringify_arg): Push arg context at beginning.
        (cpp_get_token): Split out core into _cpp_get_token.  Call
        process_directive here.  Throw away CPP_PLACEMARKER tokens.
        (_cpp_get_token): Convert tail recursion through
        push_macro_context to a loop at this level.
        (_cpp_glue_header_name, is_macro_disabled, stringify_arg,
        _cpp_get_raw_token): Use _cpp_get_token.
        (_cpp_skip_rest_of_line): Drop the context stack directly; do
        not call pop_context.
        (_cpp_run_directive): Call lex_next directly.

        * cpphash.h: Prototype _cpp_get_token.
        * cppexp.c (lex): Use it.
        * cpphash.c (parse_define): Use it.
        * cpplib.c (get_define_node, do_undef, parse_include,
        read_line_number, do_line, do_ident, do_pragma, do_pragma_gcc,
        do_pragma_implementation, do_pragma_poison, do_pragma_dependency,
        parse_ifdef, validate_else): Use it.
        (cpp_push_buffer): Tweak error message; abort if anyone tries
        to push a buffer while macro expansions are stacked.

2000-07-11  Donn Terry  <donnte@microsoft.com>

        * cpplex.c (free_macro_args, save_token): Cast arg of free
        and/or xrealloc to PTR.
        (_cpp_init_input_buffer): Clear all fields of the base context.

Tue Jul 11 15:28:21 CDT 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * gensupport.c (process_rtx): Make rtl checking stop
        complaining about the define_insn while it is being
        converted from a define_insn_and_split.

Tue Jul 11 16:26:17 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * config/mips/mips.c (simple_memory_operand): Access the
        INTVAL of the address, not it's containing MEM.

2000-07-11  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixtests.c(double_slash): obsolete
        (else_endif_label): likewise
        * fixinc/inclhack.def(irix_multiline_cmnt): obsolete
        (libc1_ifdefd_memx): correct initial comment
        and omit the #if/#endif pair from the memxxx declarations
        * fixinc/fixincl.x: regen

2000-07-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cpplex.c (T, I, S, C, N): Avoid non-constant initializers.

2000-07-11  Neil Booth  <NeilB@earthling.net>

        * cpp.texi: Update.

2000-07-11  Neil Booth  <NeilB@earthling.net>

        * cppinit.c: (cpp_reader_init): Allow digraphs by default.
        (handle_option): Set digraphs according to standard.
        Merge OPT_lang_c89 handler with OPT_std_c89.

        * cpplex.c: (lex_line, can_paste): Honour digraphs in
        accordance with the digraphs flag.

        * cpplib.h: (struct cpp_options): New option digraphs.

2000-07-10  Hans-Peter Nilsson  <hp@axis.com>
            Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def (libc1_ifdefd_memx): New fix.
        * fixinc/fixincl.x: Regenerate.
        * fixinc/tests/base/testing.h: Add testcase.

2000-07-10  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (got_symbolic_operand): New.
        (symbolic_operand, move_operand): Revert 0701 change.
        * config/ia64/ia64.h (PREDICATE_CODES): Update.
        * config/ia64/ia64-protos.h (got_symbolic_operand): Declare.
        * config/ia64/ia64.md (movdi): Revert 0701 wrt symbolic_operand;
        split the offset into a 14-bit low part instead of a 13-bit low part.
        (load_fptr): Mark the mem as unchanging.
        (load_symptr): Use got_symbolic_operand.

2000-07-10  Nick Clifton  <nickc@cygnus.com>

        * libgcc2.c (next_stack_level): Cast result of computation to
        (void **) so that the assignment does not generate a warning.

2000-07-10  Chandrakala Chavva  <cchavva@redhat.com>

        * flags.h : Add new variable flag_single_precision_constant.
        * toplev.c (display_help) : Add -fsingle-precision-constant option.
        (flag_single_precision_constant): New.
        * c-lex.c (yylex): Convert floating point constant to single
        precision constant.
        * invoke.texi : Add documentation for this new option.

2000-07-10  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (output_octal): Second parameter is unsigned.
        (output_long_octal): Likewise.
        (output_hexadecimal): Likewise.
        (output_long_hexadecimal): Likewise.
        (output_format): Adjust arguments extraction. Tweak.
        (output_verbatim, verbatim): End variable argument list.
        (report_diagnostic): Improve documentation.

2000-07-10  Benjamin Chelf  <chelf@codesourcery.com>

        * c-common.h (build_stmt): Declare.
        (build_continue_stmt): Likewise.
        (build_break_stmt): Likewise.
        (build_return_stmt): Likewise.

        * c-decl.c (do_case): Rewrite to do what previously done in
        c-parse.in.

        * c-semantics.c (build_stmt): Define.
        (build_return_stmt): Likewise.
        (build_break_stmt): Likewise.
        (build_continue_stmt): Likewise.
        (build_case_label): Likewise.

        * c-parse.in (BREAK): Change to build tree, then generate RTL.
        (CONTINUE): Likewise.
        (RETURN): Likewise.
        (CASE): Likewise.
        (DEFAULT): Likewise.

        * c-parse.y: Regenerate.
        * c-pasre.c: Likewise.

2000-07-09  Jason Merrill  <jason@redhat.com>

        * expr.c (expand_expr): Bail earlier if we get an error_mark_node.

        * tree.h (STRIP_NOPS): Check for error_mark_node.
        (STRIP_SIGN_NOPS, STRIP_TYPE_NOPS): Likewise.
        (dwarf2out_*): Remove duplicate declarations.

        * c-decl.c (duplicate_decls): Copy DECL_ABSTRACT_ORIGIN from
        DECL_ABSTRACT_ORIGIN, not DECL_ORIGIN.

2000-07-10  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (wrap_text): New function.
        (maybe_wrap_text): Likewise.
        (output_add_string): Use it.
        (output_format): Likewise.
        (count_error): Use verbatim instead of notice.
        (report_error_function): Likewise. Don't use plain fprintf.
        (finish_diagnostic): New function.
        (output_do_verbatim): Tweak.  Commonalize functionalities in
        output_verbatim and verbatim.
        (output_verbatim): Adjust.
        (verbatim): Likewise.
        (report_diagnostic): Define.

        * diagnostic.h (report_diagnostic): Prototype.

2000-07-09  Zack Weinberg  <zack@wolery.cumb.org>

        * cppexp.c (_cpp_parse_expr): Don't use unary plus.

2000-07-09  Neil Booth  <NeilB@earthling.net>

        * cpphash.h: ISvspace, is_vspace, is_nvspace: New.
        IShspace, ISspace: Update.

        * cppinit.c: ISTABLE: Update.
        V: New.

        * cpplex.c (IS_HSPACE, S_NEWLINE): Remove.
        (IS_DIRECTIVE): Rename KNOWN_DIRECTIVE.
        (skip_block_comment, skip_line_comment, parse_string,
        lex_line): Use is_vspace rather than IS_NEWLINE.
        (skip_whitespace, lex_line): Clean up to use is_nvspace.
        (lex_line): Use KNOWN_DIRECTIVE.  Any kind of directive
        gets a BOL flag.
        (lex_next): Unconditionally stop if within a directive.
        Treat directives within macro invocations as directives
        (after parse_args emits error), not as the argument.

2000-07-09  Gabriel Dos Reis  <gdr@codesourcery.com>

        * diagnostic.c (diagnostic_args): New macro.
        (diagnostic_msg): Likewise.
        (output_formatted_integer): Likewise.
        (output_state): New data type.
        (digit_buffer): Make global.
        (output_add_integer): Rename to output_decimal. Squeeze
        digit_buffer.
        (output_long_decimal, output_unsigned_decimal,
        output_long_unsigned_decimal, output_octal, output_long_octal,
        output_hexadecimal, output_long_hexadecimal): New functions.
        (output_append_r): New function.
        (output_append): Tweak.
        (output_flush_on): Rename to output_to_stream.
        (output_format): Change prototype.  Improve documentation. Handle
        more format specifiers.
        (build_location_prefix): Rename to context_as_prefix.
        (output_notice): Rename to output_do_printf.
        (output_printf): Tweak.
        (line_wrapper_printf): Likewise.
        (vline_wrapper_message_with_location): Adjust call to renamed
        functions.
        (v_message_with_decl): Likewise.
        (default_print_error_function): Likewise.
        (save_output_state): New function.
        (restore_output_state): Likewise.
        (output_do_verbatim): Likewise.
        (output_verbatim): Define.
        (verbatim): Likewise.

        * diagnostic.h (printer_fn): Change return type from void to int.
        Improve documentation.
        (output_add_integer): Rename to output_decimal.
        (output_flush_on, output_format): Don't export.
        (output_verbatim, verbatim): Declare.

2000-07-08  Toon Moene  <toon@moene.indiv.nluug.nl>

        * fold-const.c (extract_muldiv) case PLUS_EXPR, MINUS_EXPR:
        Check whether c divides op1 exactly if operation is not
        multiplication.

2000-07-08  Richard Henderson  <rth@cygnus.com>

        * final.c (final): Do not abort when reg-stack introduces
        a new insn.

2000-07-08  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (struct cpp_name): Now struct cpp_string.
        (CPP_INT, CPP_FLOAT, CPP_NUMBER, CPP_COMMENT,
        CPP_HEADER_NAME): Change to type S.
        (struct cpp_token): Rename 'name' field to 'str'.  Add 'node'
        field, a cpp_hashnode *.  All references to val.name updated
        to use val.str or val.node as appropriate.
        (struct cpp_reader): Add spec_nodes field.
        (cpp_idcmp): Now cpp_ideq; takes a token * and a char *.

        * cpphash.h (struct spec_nodes): New.
        (enum spell_type): Reorder.  Only SPELL_STRING tokens use
        val.str.  All references to 'spelling > SPELL_NONE' updated to
        match.

        (CPP_IN_SYSTEM_HEADER): Check pfile->buffer and
        pfile->buffer->inc are not NULL before dereferencing them.

        * cpplex.c (parse_name): Take a pointer to the current token,
        plus current position and limit as args; return the new
        position; don't copy the text of a name into the string
        buffer, instead call cpp_lookup and store the node pointer.
        If extending a token, copy out the text of the old into a
        scratch buffer, append the new, look that up and store the new
        node pointer.  Inline.
        (maybe_paste_with_next): If the result of paste is a NAME,
        then look up the pasted text and store its node pointer.
        (lex_line): Adjust for new parse_name interface.
        Check for L"str", L'str' using spec_nodes->n_L.
        (spell_token): SPELL_IDENT tokens have their spelling in
        val.node->name.  Handle SPELL_STRING tokens that don't have
        string delimiters.
        (_cpp_expand_name_space,
        (can_paste): Check for L ## "str" using spec_nodes->n_L.
        (cpp_get_token, special_symbol): No need to call cpp_lookup.
        (cpp_idcmp): Now cpp_ideq; take a token * and a const char *;
        return 1=equal 0=not, not a tristate.

        * cpphash.c (var_args_str): Delete.
        (find_param): Compare node fields directly.
        (is__va_args__): Use CPP_PEDANTIC.  Just compare
        token->val.node with spec_nodes->n__VA_ARGS__.
        (dump_funlike_macro): Don't use var_args_str.

        * cpplib.c (_cpp_check_directive): Just walk through
        spec_nodes->dirs comparing pointers.
        (get_define_node, do_pragma_poison, detect_if_not_defined,
        parse_ifdef): The identifier has already been looked up.
        (do_ifdef, do_ifndef): parse_ifdef won't return a poisoned
        node.
        (do_if): Only call detect_if_not_defined at beginning of file.
        (_cpp_parse_assertion): Only copy string pointers for
        SPELL_STRING tokens.
        (pragma_dispatch): Take a node pointer and examine its name
        field.
        (_cpp_init_stacks): Also initialize the spec_nodes structure.

        * cppinit.c (cpp_reader_init): Call _cpp_init_stacks after
        _cpp_init_macros.
        (cpp_cleanup): Free pfile->spec_nodes.  Call _cpp_cleanup_* in
        reverse order from the corresponding _cpp_init_* routines.

        * cppexp.c (parse_number, parse_charconst, parse_defined,
        lex): Check val.node->type instead of calling cpp_defined.
        Use spec_nodes entries where appropriate.

        * fix-header.c, scan-decls.c: Update for interface changes.

2000-07-08  Geoffrey Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): Fix conditions for
        emitting aux_truncdfsf2.

2000-07-03  Donn Terry  (donnte@microsoft.com)

        * cppinit.c (print_help): split overlong line into ISO C89
        maximum chunks.

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

        * cppexp.c: Update all code for new lexer interface.
        (op_t, operator codes, struct token, tokentab2, op_to_str): Remove.
        (struct suffix, vsuf_1, vsuf_2, vsuf_3, op_to_prio): New.
        * cpplex.c (token_names): Trim leading CPP_ from names; make
        the strings unsigned.
        (_cpp_spell_operator): New.
        (is_macro_disabled): Disable all macros if rescanning
        preprocessed text.
        (_cpp_get_directive_token): Remove.

        * cppinit.c: Don't set no_macro_expand.
        * cpplib.c (read_line_number, do_line): Check only for EOF,
        not VSPACE.
        * cpphash.h: Update prototypes.
        * cpplib.h (CPP_VSPACE): Remove.
        (struct cpp_reader): Remove no_macro_expand.

2000-07-08  Neil Booth  <NeilB@earthling.net>

        * cpphash.c (is__va_args__): New function.
        (count_params): Fix line reported in error messages.  Use
        is__va_args__.  Don't return ')' on error.  Flag GNU style
        rest args macro definitions.
        (parse_define): Check macro name is not __VA_ARGS__.
        (save_expansion): Check identifier in non-varargs-macro is
        not __VA_ARGS__.  Don't flag GNU_VARARGS.
        * cpplex.c (parse_args): Accept no argument iff GNU_REST_ARGS.
        (maybe_paste_with_next): Use per-macro GNU_REST_ARGS rather
         than per-token GNU_VARARGS.
        * cpplib.h (GNU_VARARGS): Remove.
        (GNU_REST_ARGS): New.

Sat Jul  8 01:38:25 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (call_pop, call, call_value_pop): Do not set
        current_function_uses_pic_offset_table for calls to static
        functions or indirect calls.

2000-07-07  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.c (rws_access_reg): New local write_count.  If
        is_predicate_reg, then take max write_count of register pair.

2000-07-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * tradcpp.c (main): Rename label `include' to `add_include' to
        avoid conflicts with variable `include' in traditional C.

2000-07-07  Jakub Jelinek  <jakub@redhat.com>

        * integrate.c (copy_insn_list): Remove REG_LABEL notes.

2000-07-07  Jakub Jelinek  <jakub@redhat.com>

        * sibcall.c (uses_addressof): Add INMEM argument, check for
        current_function_internal_arg_pointer outside of MEM rtxs in addition
        to ADDRESSOFs.
        (sequence_uses_addressof): Update caller.

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

        * tradcpp.c (initialize_builtins): Honor NO_BUILTIN_SIZE_TYPE
        and friends.

2000-07-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (UNION_INIT_ZERO): New macro for initializing union
        members in structs.

        * cpplex.c (placemarker_token, eof_token): Use UNION_INIT_ZERO.

2000-07-07  Neil Booth  <NeilB@earthling.net>

        * cpp.texi: Update.

Fri Jul  7 07:47:35 2000  Jeffrey A Law  (law@cygnus.com)

        * final.c (final): Detect out of bounds array access to
        the insn_lengths array.

2000-07-07  Kazu Hirata  <kazu@hxi.com>

        * fold-const.c (fold): Fix a comment typo.

2000-07-07  Neil Booth  <NeilB@earthling.net>

        * cpp.texi: Update to new lexer.

2000-07-06  Zack Weinberg  <zack@wolery.cumb.org>

        * tradcpp.c: New file.
        * tradcif.y: New file.
        * tradcif.c: New generated file.

        * Makefile.in: Add rules to build tradcpp.o, tradcif.o,
        $(srcdir)/tradcif.c.  Add tradcpp to STAGESTUFF and
        dependencies of C.  Install tradcpp from install-common, in
        $(libsubdir).

2000-07-06  Zack Weinberg  <zack@wolery.cumb.org>

        * cppinit.c: Include cppdefault.h.  Refer to
        cpp_GCC_INCLUDE_DIR and cpp_GCC_INCLUDE_DIR_len, not directly
        to GCC_INCLUDE_DIR and its length.
        (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
        USER_LABEL_PREFIX, REGISTER_PREFIX, struct default_include,
        STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT):  Move to
        cppdefault.h.
        (include_defaults_array): Move to cppdefault.c.

        * cppdefault.h: New file.
        * cppdefault.c: New file.

        * Makefile.in (LIBCPP_OBJS): Add cppdefault.o.
        (cppinit.o): Don't apply $(PREPROCESSOR_DEFINES) to this file.
        (cppdefault.o): New rule; apply $(PREPROCESSOR_DEFINES) to
        this file.

Thu Jul  6 18:30:36 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * reload.c (push_reload): When seeing if can reuse a register,
        check extra registers against widest of INMODE and OUTMODE.

2000-07-06  Neil Booth  <NeilB@earthling.net>

        * cpplib.c: (_cpp_parse_assertion):  Perform hash lookups
        based on full length of predicate.

2000-07-06  Hans-Peter Nilsson  <hp@axis.com>

        * timevar.c: [HAVE_SYS_RESOURCE_H]: Include <sys/resource.h>.
        [NEED_DECLARATION_GETRUSAGE]: Declare getrusage.

2000-07-05  Kazu Hirata  <kazu@hxi.com>

        * h8300-proto.h: Fix formatting.
        * h8300.c: Likewise.
        * h8300.h: Likewise.

2000-07-05  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/ia64.h (HARD_REGNO_MODE_OK): If FR_REGNO_P, disallow
        CCmode.

2000-07-05  Rodney Brown  <RodneyBrown@pmsc.com>

        * invoke.texi: Fix minor typos
        * md.texi: Fix minor typos

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

        * cpplib.c (_cpp_parse_assertion): Fix buffer overrun.

2000-07-04  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c: Don't include sys/mman.h.
        (cpp_push_buffer, cpp_pop_buffer): Moved to cpplib.c.

        * cpplib.c: Include sys/mman.h and obstack.h.
        (cpp_push_buffer): Moved from cpplex.c; allocate buffers on an
        obstack.
        (cpp_pop_buffer): Moved from cpplex.c; free buffers from an obstack.
        (_cpp_unwind_if_stack): Now static, unwind_if_stack.  Don't
        bother freeing if stack entries (they will be freed with their buffer).
        (do_endif): Free if stack entries from the buffer obstack.
        (push_conditional): Allocate if stack entries from the buffer obstack.

        (find_answer): Rename to _cpp_find_answer.
        (do_assert, do_unassert): Update.

        * cpphash.h: Update prototypes.
        (xobnew): New convenience macro.
        * cpplib.h (struct cpp_reader): Add hash_ob and buffer_ob fields.
        Update comments.
        (struct cpp_hashnode): Remove disabled field.

        * cppinit.c: Don't include hashtab.h or splay-tree.h.
        (report_missing_guard): Moved to cppfiles.c.
        (cpp_reader_init): Call cpp_init_stacks, cpp_init_macros,
        cpp_init_includes.
        (cpp_cleanup): Call cpp_cleanup_stacks, cpp_cleanup_macros,
        cpp_cleanup_includes.  Don't destroy hashtab or
        all_include_files here.
        (cpp_finish): Use _cpp_report_missing_guards.

        * cppfiles.c (report_missing_guard): Moved from cppinit.c.
        (_cpp_init_include_table): Rename _cpp_init_includes.
        (_cpp_cleanup_includes, _cpp_report_missing_guards): New.

        * cppexp.c (parse_assertion): Update for new name of
        find_answer.

        * Makefile.in (cpplib.o, cpphash.o, cppinit.o): Update deps.

2000-07-04  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.c (do_ident): s/VSPACE/EOF/

2000-07-05  Neil Booth  <NeilB@earthling.net>

        * cpplex.c: Fix trigraph replacement within strings.

2000-07-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * rs6000/aix.h (ASM_GENERATE_INTERNAL_LABEL): Fix format specifier.

        * xcoffout.c (assign_type_number): Constify.
        (xcoffout_source_file): Add static prototype.  Don't needlessly
        cast away const-ness.

2000-07-04  Jason Merrill  <jason@redhat.com>

        * frame.h (frame_state): Move base_offset to end.

Mon Jul  3 21:31:43 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * calls.c (emit_library_call_value_1): Revert previous change.

2000-07-03  Zack Weinberg  <zack@wolery.cumb.org>

        * fix-header.c (struct partial_proto): Remove unnecessary fields.
        (recognized_extern, recognized_function, read_scan_file):
        Update for new scheme.
        (check_protection): It's still a multiple include guard even
        if it doesn't always trigger.
        * scan-decls.c (skip_to_closing_brace, scan_decls): Update for
        new scheme.
        * scan.h: Declare struct cpp_token.  Update prototypes.

2000-07-03  Neil Booth  <neilb@earthling.net>
            Zack Weinberg  <zack@wolery.cumb.org>

        Complete overhaul of the lexer and macro expander.

        * cpphash.c (object_defn, funct_defn, push_macro_expansion,
        arg, arglist, argdata, reflist, collect_objlike_expansion,
        collect_funlike_expansion, collect_params,
        warn_trad_stringify, trad_stringify, duplicate_arg_p, add_pat,
        unsafe_chars, macarg, compare_defs, special_symbol,
        scan_arguments, stringify, funlike_macroexpand,
        _cpp_quote_string, monthnames): Delete.
        (cpp_lookup, _cpp_free_definition, dump_funlike_macro,
        _cpp_create_definition, _cpp_dump_definition,
        dump_hash_helper): Adjust.
        (find_param, count_params, parse_define, var_args_str,
        check_macro_redefinition, save_expansion): New.

        * cpplex.c (skip_block_comment, skip_line_comment, parse_name,
        parse_string, output_line_command, trigraph_replace,
        lex_line, cpp_push_buffer, cpp_pop_buffer, cpp_output_tokens,
        cpp_scan_buffer_nooutput, cpp_scan_buffer, cpp_free_toklist,
        cpp_idcmp, _cpp_get_directive_token, _cpp_init_input_buffer,
        _cpp_skip_rest_of_line): Modify.

        (maybe_macroexpand, skip_comment, copy_comment, skip_string,
        find_position, null_warning, bump_column, expand_name_space,
        pedantic_whitespace, _cpp_output_list, _cpp_slice_toklist,
        _cpp_squeeze_toklist, _cpp_scan_until, _cpp_skip_hspace,
        _cpp_parse_name, _cpp_lex_token, cpp_get_non_space_token,
        _cpp_prescan): Delete.

        (dump_param_spelling, process_directive, lex_next,
        is_macro_disabled, stringify_arg, expand_context_stack,
        output_token, make_string_token, alloc_number_token,
        special_symbol, duplicate_token, maybe_paste_with_next,
        can_paste, prevent_macro_expansion, restore_macro_expansion,
        get_temp_token, release_temp_tokens, quote_string,
        token_names, token_spellings, _cpp_expand_name_space,
        _cpp_glue_header_name, _cpp_reserve_name_space,
        digraph_spellings, trigraph_ok, skip_whitespace, save_comment,
        placemarker_token, eof_token, cpp_context, macro_args,
        get_raw_token, parse_arg, parse_args, save_token,
        push_arg_context, push_macro_context, pop_context,
        do_pop_context, free_macro_args, _cpp_get_line,
        _cpp_run_directive): New.

        * cpplib.c (validate_else, parse_include, push_conditional,
        pass_thru_directive, read_line_number, parse_ifdef,
        detect_if_not_defined, _cpp_check_directive, do_define,
        do_undef, do_include, do_import, do_include_next, do_error,
        do_warning, do_ident, do_pragma, pragma_dispatch, gcc_pragmas,
        top_pragmas, do_pragma_gcc, do_pragma_implementation,
        do_pragma_poison, do_pragma_system_header,
        do_pragma_dependency, do_sccs, do_ifdef, do_ifndef, do_else,
        dl_elif, do_endif, _cpp_unwind_if_stack, do_assert,
        do_unassert, cpp_define, cpp_undef, cpp_assert, cpp_unassert,
        cpp_defined): Update for new scheme.
        (strtoul_for_line, get_define_node, dump_macro_name,
        _cpp_check_linemarker, _cpp_parse_assertion): New.
        (_cpp_handle_directive, do_pragma_default): Delete.

        * cpphash.h (struct predicate): Now struct answer.
        (enum spell_type, struct token_spelling, struct directive,
        directive_handler): New.
        Update prototypes.  Remove unused macros.
        * cpplib.h: Update prototypes.  Remove unused macros,
        structure definitions, and fields.

        * cpperror.c (print_containing_files, v_message): Adjust.
        * cppexp.c (parse_assertion, lex, parse_escape,
        _cpp_parse_expr): Adjust.
        * cppfiles.c (open_include_file, _cpp_execute_include,
        _cpp_compare_file_date, cpp_read_file, read_include_file):
        Adjust.
        * cppinit.c (dump_special_to_buffer): Delete.
        (append_include_chain, merge_include_chains, cpp_reader_init,
        cpp_cleanup, initialize_builtins, builtin_array, cpp_start_read,
        cpp_finish, handle_option, print_help): Adjust.
        * cppmain.c (main): Adjust.

2000-07-03  Zack Weinberg  <zack@wolery.cumb.org>

        * cppspec.c (lang_specific_driver): Use double quotes in error
        message.

Mon Jul  3 16:53:43 2000  Clinton Popetz  <cpopetz@cygnus.com>

        * calls.c (emit_library_call_value_1): Use valreg instead
        of hard_libcall_value.

2000-07-03  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): New function.
        * config/rs6000/rs6000-proto.h: Prototype rs6000_emit_move.
        * config/rs6000/rs6000.md (movsi): Use rs6000_emit_move.
        (movhi): Likewise.
        (movqi): Likewise.
        (movdf): Likewise.
        (movsf): Likewise.
        (movdi): Likewise.
        (movti): Likewise.

        * expmed.c (expand_mult_highpart): Use op1 instead of wide_op1 when
        mode instead of wider_mode is being used.

2000-07-03  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.md (movstrictqi_xor): Use 'q' constraint instead
        of 'r'. Use q_regs_operand.
        (andsi_1+2): Use q_regs_operand.

2000-07-03  Jakub Jelinek  <jakub@redhat.com>

        * builtins.c (get_memory_rtx): Always put into alias set 0.

2000-07-03  Nick Clifton  <nickc@cygnus.com>

        * config/arm/arm.md: Fix post increment and pre increment
        peepholes so that they do not generate UNPREDICATBLE opcodes.
        (ie ones where the increment clobbers the source/destination).

2000-07-01  Marek Michalkiewicz  <marekm@linux.org.pl>

        * config/avr/avr.c (out_adj_frame_ptr): Make "frame pointer
        change too big for -mtiny-stack" a warning, if larger than 63.
        (out_set_stack_ptr): Change the logic so -mno-interrupts is
        always safe to use on possible future devices.
        (function_prologue): Write SPH before SPL, for consistency.
        If interrupt_func_p true, we know we have enabled interrupts.
        (avr_num_arg_regs): New function.  Round up to even number of
        bytes if no -mpack-args or if calling a libgcc function.
        (function_arg, function_arg_advance): Use it.
        (output_movsisf, ashlsi3_out, ashrsi3_out, lshrsi3_out):
        Output "movw" if available.
        (out_tsthi, out_tstsi, ashlqi3_out, lshrqi3_out): Change uses
        of TEST_HARD_REG_CLASS macro to test_hard_reg_class function.
        (asm_output_section_name): Add blanks for consistent output.
        (encode_section_info): Set TREE_READONLY for progmem data to
        avoid gas warnings about changed section attributes.
        (avr_hard_regno_mode_ok): Force non-QImode data to start in
        even numbered registers on devices with "movw".
        * config/avr/avr.h (MASK_*): Define bits for target_flags.
        (TARGET_SWITCHES): Mark help strings for translation.
        Add new -mpack-args and -menhanced switches.
        (TARGET_OPTIONS): Mark help strings for translation.
        (progmem_section): Add section attributes.
        * config/avr/avr.md (*movhi, call_insn, call_value_insn):
        Output "movw" if available.
        (mulqi3, mulqihi3, umulqihi3, mulhi3, *tablejump_enh):
        New patterns.
        * config/avr/libgcc.S (_mulqi3, _divqi3): Update to the new
        call convention (arguments aligned on even registers).
        (_cleanup, _exit): Make weak symbols libc can override.

2000-07-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fp-bit.h: New file.

        * fp-bit.c: Move common code, prototypes, etc into fp-bit.h.
        Comment #endif statements.
        (__thenan_sf, __thenan_df): Add missing braces around initializer.

Mon Jul  3 00:32:47 2000  Jeffrey A Law  (law@cygnus.com)

        * gcse.c (compute_pre_data): Compute ae_kill using other local
        properties instead of calling compute_ae_kill.

        * alias.c (init_alias_analysis): Do not call
        prologue_epilogue_contains until after reload has completed.

2000-07-02  Benjamin Chelf  <chelf@codesourcery.com>

        * c-common.h (genrtl_begin_compound_stmt): Remove declaration.
        (genrtl_finish_compound_stmt): Likewise.
        (genrtl_compound_stmt): Change to return void.

        * c-semantics.c (genrtl_begin_compound_stmt): Remove function and
        move code from here to ...
        (genrtl_compound_stmt): ... here.
        (genrtl_finish_compound_stmt): Remove.
        (expand_stmt): Add comment.

2000-07-02  Zack Weinberg  <zack@wolery.cumb.org>

        * c-typeck.c (build_indirect_ref): Use COMPLETE_OR_VOID_TYPE_P
        and VOID_TYPE_P.

2000-07-02  Jakub Jelinek  <jakub@redhat.com>

        * cpplib.h (struct cpp_reader): New field include_depth.
        (struct cpp_printer): Rename last_bsd to last_id.
        * cppfiles.c (read_include_file): Bump include_depth.
        * cpplex.c (cpp_pop_buffer): Decrement include_depth.
        (output_line_command): Output correct #line if a header
        is including itself and is not protected against multiple inclusion.
        Use include_depth instead of buffer_stack_depth, last_id instead of
        last_bsd.
        * cppinit.c (cpp_start_read): Initialize last_id instead of
        last_bsd.

2000-07-01  Benjamin Chelf  <chelf@codesourcery.com>

        * Makefile.in (C_AND_OBJC_OBJS): Added c-semantics.o.
        (c-semantics.o): New target.

        * c-common.h (TREE_LANG_FLAG_?): Added documentation.
        (genrtl_do_pushlevel): Moved from cp/cp-tree.h.
        (genrtl_clear_out_block): Likewise.
        (genrtl_goto_stmt): Likewise.
        (genrtl_expr_stmt): Likewise.
        (genrtl_decl_stmt): Likewise.
        (genrtl_if_stmt): Likewise.
        (genrtl_while_stmt): Likewise.
        (genrtl_do_stmt): Likewise.
        (genrtl_return_stmt): Likewise.
        (genrtl_for_stmt): Likewise.
        (genrtl_break_stmt): Likewise.
        (genrtl_continue_stmt): Likewise.
        (genrtl_scope_stmt): Likewise.
        (genrtl_switch_stmt): Likewise.
        (genrtl_case_label): Likewise.
        (genrtl_begin_compound_stmt): Likewise.
        (gerntl_finish_compound_stmt): Likewise.
        (genrtl_compound_stmt): Likewise.
        (genrtl_asm_stmt): Likewise.
        (genrtl_decl_cleanup): Likewise.
        (DECL_ANON_UNION_ELEMS): Likewise.
        (emit_local_var): Likewise.
        (make_rtl_for_local_static): Likewise.
        (expand_cond): Likewise.
        (expand_stmt): Likewise.
        (c_expand_return): Likewise.
        (c_expand_start_case): Likewise.
        (do_case): Likewise.
        (COMPOUND_STMT_NO_SCOPE): Likewise.
        (c_expand_asm_operands): Likewise.
        (NEW_FOR_SCOPE_P): New macro.
        (expand_expr_stmt_fn): New type.

        (set_current_function_name_declared): Likewise.
        (current_function_name_declared): Likewise.
        (lang_expand_stmt): Likewise.
        (stmts_are_full_exprs_p): Likewise.
        (anon_aggr_type_p): Likewise.
        (lang_expand_expr_stmt): Likewise.
        (build_case_label): Likewise.

        * c-decl.c (lang_expand_expr_stmt): Initialize.
        (stmts_are_full_exprs_p): Define.
        (current_function_name_declared): Likewise.
        (do_case): Likewise.
        (lang_expand_stmt): Likewise.
        (set_current_function_name_declared): Likewise.
        (anon_aggr_type_p): Likewise.

        * c-semantics.c: New file.
        (expand_cond): Moved from cp/semantics.c.
        (genrtl_do_pushlevel): Likewise.
        (genrtl_clear_out_block): Likewise.
        (genrtl_goto_stmt): Likewise.
        (genrtl_expr_stmt): Likewise.
        (genrtl_decl_stmt): Likewise.
        (genrtl_if_stmt): Likewise.
        (genrtl_while_stmt): Likewise.
        (genrtl_do_stmt): Likewise.
        (genrtl_return_stmt): Likewise.
        (genrtl_for_stmt): Likewise.
        (genrtl_break_stmt): Likewise.
        (genrtl_continue_stmt): Likewise.
        (genrtl_scope_stmt): Likewise.
        (genrtl_switch_stmt): Likewise.
        (genrtl_case_label): Likewise.
        (genrtl_begin_compound_stmt): Likewise.
        (genrtl_finish_compound_stmt): Likewise.
        (genrtl_compound_stmt): Likewise.
        (genrtl_asm_stmt): Likewise.
        (genrtl_decl_cleanup): Likewise.
        (make_rtl_for_local_static): Moved from cp/decl.c.
        (emit_local_var): Likewise.
        (expand_stmt): Define.

        * c-tree.h: (c_expand_asm_operands): Moved to c-common.h.
        (c_expand_return): Likewise.
        (c_expand_start_case): Likewise.

2000-07-01  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.c (symbolic_operand): Reject CONST expressions
        with the low 13 bits set.
        (move_operand): Check for CONST|SYMBOL_REF|LABEL_REF directly.
        * config/ia64/ia64.md (movdi): Likewise.  Expand a CONST with one
        of the low 13 bits into a CONST plus an adddi3.
        (load_symptr): Set RTX_UNCHANGING_P.

See ChangeLog.3 for earlier changes.