* gcc.c (modify_target): New variable and struct.

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

Wed Sep 20 15:39:14 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * gcc.c (modify_target): New variable and struct.
        (process_command): Handle MODIFY_TARGET_NAME.
        * tm.texi (MODIFY_TARGET_NAME): Add documentation for new macro.
        * config/pa/pa.h (MODIFY_TARGET_NAME): New macro.

        * c-decl.c (finish_decl): Add else's to avoid referencing
        TYPE_DOMAIN of an ERROR_MARK.

Wed Sep 20 21:44:31 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.c (adjust_insn_length): Adjust lengths of
        `reload_in*' insns.

2000-09-19  Marek Michalkiewicz  <marekm@linux.org.pl>

        * config/avr/avr.md (neghi2): Add alternative for input and output
        operands in different registers, as in negsi2.
        (*negsi2): Remove '*' from the name.  Use "movw" if available.

2000-09-19  Jim Wilson  <wilson@cygnus.com>

        * config/ia64/crtbegin.asm (__dso_handle): Delete use of
        HAVE_GAS_HIDDEN macro.

Tue 19-Sep-2000 22:38:57 BST  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (lex_line): Drop the EOF token for unknown
        directives in assembler.

2000-09-19  David Edelsohn  <edelsohn@gnu.org>

        * configure.in: Allow enable_threads_flag value of "aix".  Define
        thread_file as "aix" for AIX 4.3 and above.
        * configure: Regenerated.

        * gthr-aix.h: New file.

        * rs6000/t-aix43: Replace soft-float multilib with pthread.
        Remove 403 processor multilib match.  Fix rios2 processor multilib
        match.

        * rs6000/aix.h (ASM_DECLARE_FUNCTION_NAME): Use function_section
        to return to appropriate csect.

2000-09-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (is_valid_printf_arglist, expand_builtin_printf): New
        functions.
        (expand_builtin_fputs): Set `target' parameter for `expand_expr'.
        (expand_builtin): Handle BUILT_IN_PUTCHAR, BUILT_IN_PUTS and
        BUILT_IN_PRINTF.

        * builtins.def (BUILT_IN_PUTCHAR, BUILT_IN_PUTS, BUILT_IN_PRINTF):
        New entries.

        * c-common.c (init_function_format_info): Handle __builtin_printf.
        Set `check_function_format_ptr'.
        (c_common_nodes_and_builtins): Set `puts_ftype' and
        `printf_ftype'.  Declare __builtin_putchar, __builtin_puts,
        __builtin_printf and printf.

        * tree.c, tree.h (check_function_format_ptr): Declare.

Tue 19-Sep-2000 18:26:57 BST  Neil Booth  <NeilB@earthling.net>

        * cppfiles.c (read_include_file): Take no special action for
        zero-length files.

2000-09-19  Bernd Schmidt  <bernds@redhat.co.uk>

        * final.c (insn_current_reference_address): Use INSN_SHUID of seq
        rather than that of branch.
        (shorten_branches): Don't increment insn_current_address twice.

        Undo most of the Wed Jan 27 23:39:53 1999 patch:
        * loop.h (struct induction): Delete members derived, ix and last_use.
        (struct loop_ivs): Delete members first_increment_giv and
        last_increment_giv.
        * loop.c (verify_dominator, find_life_end, cmp_recombine_givs_stats,
        recombine_givs): Delete functions.
        (find_and_verify_loops): Don't initialize cont_dominator.
        (strength_reduce): Lose code to try to find bivs that can be
        expressed as givs of another biv, and to convert biv increments
        into givs.
        Lose loop_scan_start variable, always use loop->scan_start.
        Don't call recombine_givs.  Don't handle derived givs.
        (record_giv): Don't initialize derived and last_use fields.
        (biv_eliminiation_giv_has_0_offset): Lose code to handle derived
        givs.
        * unroll.c (derived_regs): Delete static variable.
        (unroll_loop): Don't initialize it.
        (copy_loop_body): Lose code to handle derived givs.
        (find_splittable_givs): Don't check for givs made from biv
        increments.
        Don't set derived_regs.

        Fix misapplied earlier patch:
        * config/sh/sh.md (floatsisf_ie): Reenable.  Remove explicit reference
        to fpul.
        (floatsisf2): Generate floatsisf_ie by default.
        (floatsisf_i4): Conditional on TARGET_SH4.

        (floatsisf2, floatsidf2, extendsfdf2): Also use reg_no_subreg_operand
        predicate for the expanders.

2000-09-19  Richard Henderson  <rth@cygnus.com>

        * config/i386/i386.h (CPP_CPU_SPEC): Define i586 and i686 symbols
        in addition to pentium and pentiumpro symbols.
        (CPP_CPU_DEFAULT_SPEC): Likewise.

        * c-typeck.c (c_expand_asm_operands): Restore the output tree
        after expanding.

        * stmt.c (expand_expr_stmt): Only call warn_if_unused_value
        if the tree has side effects.
        (warn_if_unused_value): Do not warn about void constructs.

        * c-decl.c (poplevel): Invoke warn_about_unused_variables.

        * unroll.c (copy_loop_body): Update LABEL_NUSES before
        calling invert_jump.

2000-09-18  Geoff Keating  <geoffk@cygnus.com>

        * combine.c (can_combine_p): Don't substitute an ASM_OPERANDS
        into anything.

2000-09-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in (c-common.o): Depend on diagnostic.h.

        * c-common.c: Include diagnostic.h.
        (tfaff): Delete.
        (status_warning): New function.
        (check_format_info, maybe_read_dollar_number, check_format_types,
        finish_dollar_format_checking, check_function_format): Accept a
        `status' parameter.  All callers changed.

        * c-common.h (check_function_format): Accept a `status' parameter.

        * c-typeck.c: Update call to `check_function_format'.

2000-09-18  Richard Henderson  <rth@cygnus.com>

        * c-decl.c (c_expand_body): Call mark_varargs before
        expand_function_start.

2000-09-18  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/eabi-cn.asm: Use /**/ to delimit comments, not #.
        * config/rs6000/eabi-ci.asm: Likewise.

2000-09-18  Richard Henderson  <rth@cygnus.com>

        * emit-rtl.c (init_emit_once): Initialize const_tiny_rtx
        for BImode.

2000-09-18  Jim Wilson  <wilson@cygnus.com>

        * unroll.c (loop_iterations): Pass increment to extend_for_giv_value
        before passing it to fold_rtx_mult_add.

        * unroll.c (final_giv_value): Pass increment through
        extend_value_for_giv before passing it to emit_iv_add_mult.

        * function.c (fixup_var_refs_1, case ZERO_EXTRACT): If we have a
        paradoxical subreg, then directly substitute the replacement and
        return.

Mon 18-Sep-2000 22:12:44 BST  Neil Booth  <NeilB@earthling.net>

        * cpp.texi: Update documentation, including some clarifications,
        the treatment of various newline combinations, and space between
        backslash and newline.

Mon Sep 18 21:00:47 2000  J"orn Rennecke <amylaar@redhat.co.uk>

        * sdbout.c (PUT_SDB_DEF, PUT_SDB_TAG, PUT_SDB_EPILOGUE_END):
        Replace ASM_OUTPUT_LABELREF with assemble_name.

Mon Sep 18 20:26:50 2000  J"orn Rennecke <amylaar@redhat.co.uk>

        * sh.c (addsubcosts): CONST is not cheap.
        (find_barrier): For Sh1, take alignment after jumps into account.

2000-09-15  Andrew Haley  <aph@redhat.com>

        * toplev.c (rest_of_compilation): Call purge_hard_subreg_sets to
        remove all SETs of SUBREGs of hard registers.
        * function.c (purge_hard_subreg_sets): New function.
        (purge_single_hard_subreg_set): New function.
        * rtl.h: (purge_hard_subreg_sets): New function.

2000-09-18  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64-protos.h: Update.
        * config/ia64/ia64.c (signed_inequality_operator): New.
        (ia64_expand_compare): New.
        (ia64_register_move_cost): Handle PR_REGS moves.
        (ia64_secondary_reload_class): Require a GR when moving to a PR.
        (struct reg_write_state): Add written_by_and/or.
        (struct reg_flags): Add is_and/or.
        (rws_update): Set them.
        (rws_access_regno): Test them to allow parallel comparisons.
        (rtx_needs_barrier): Recognize parallel comparisons.
        (emit_insn_group_barriers): Set prev_insn after a call stop bit.
        Call recog_memoized; ignore pred_rel_mutex.
        (emit_predicate_relation_info): Don't call find_basic_blocks here.
        (ia64_reorg): Do it here instead.
        * config/ia64/ia64.h: s/CCmode/BImode/g
        (MODES_TIEABLE_P): Don't tie BImode.
        (PREFERRED_RELOAD_CLASS): Do not reload operations into AR regs.
        (CONST_COSTS): Pick sensible values for CONST_INT based on context.
        (RTX_COSTS): Make multiply 4 insns.
        (MEMORY_MOVE_COST): New.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md: s/CCmode/BImode/g
        (movcci, movbi): New.
        (andbi3, andcmbi3, iorbi3, iorcmbi3, one_cmplbi2): New.
        (cmpsi_and_0, cmpsi_and_1, cmpsi_andnot_0, cmpsi_andnot_1): New.
        (cmpdi_and_0, cmpdi_and_1, cmpdi_andnot_0, cmpdi_andnot_1): New.
        (tbit_and_0, tbit_and_1, tbit_and_2, tbit_and_3): New.
        (cmpsi_or_0, cmpsi_or_1, cmpsi_orcm_0, cmpsi_orcm_1): New.
        (cmpdi_or_0, cmpdi_or_1, cmpdi_orcm_0, cmpdi_orcm_1): New.
        (tbit_or_0, tbit_or_1, tbit_or_2, tbit_or_3): New.
        (mulsi, muldi): Use xmpy not xma.
        (cmpbi): New.
        (movcc, movcc_internal): Remove.
        (branch expanders): Use ia64_expand_compare.
        (setcc expanders): Likewise.
        (cmov insns): Use move_operand and ia64_move_ok.
        (pred_rel_mutex): Use unspec not unspec_volatile.  Prevent the
        scheduler from moving it past a use.
        * config/ia64/build.hacks: Remove.

Mon 18-Sep-2000 19:21:35 BST  Neil Booth  <NeilB@earthling.net>

        * cpphash.h (HASHSTEP): Take character rather than pointer
        to character.
        (_cpp_check_directive, _cpp_check_linemarker): Update prototypes.

        * cpphash.c (cpp_loookup): Update for new HASHSTEP.

        * cpplex.c (auto_expand_name_space, trigraph_replace,
        backslash_start, handle_newline, parse_name, INIT_TOKEN_STR,
        IMMED_TOKEN, PREV_TOKEN_TYPE, PUSH_TOKEN, REVISE_TOKEN,
        BACKUP_TOKEN, BACKUP_TRIGRAPH, MIGHT_BE_DIRECTIVE,
        KNOWN_DIRECTIVE): Delete.

        (handle_newline, check_long_token, skip_escaped_newlines,
        unterminated): New functions.
        (ACCEPT_CHAR, SAVE_STATE, RESTORE_STATE): New macros.

        (parse_identifier): Was parse_name, new implementation.
        (skip_line_comment, skip_block_comment, skip_whitespace,
        parse_number, parse_string, trigraph_ok, save_comment,
        adjust_column, _cpp_get_line): New implementations.

        (lex_token): New function.  Lexes a token at a time, looking
        forwards.  Contains most of the guts of the old lex_line.
        (lex_line): New implementation, using lex_token to obtain
        individual tokens.
        (cpp_scan_buffer): Use the token's line, not the list's line.

        * cpplib.c (_cpp_check_directive, _cpp_check_linemarker):
         New implementations.
        (do_assert): Don't bother setting the answer's list's line.
        (cpp_push_buffer): Initialise new pfile and read_ahead members
        of struct cpp_buffer.

        * cpplib.h (cppchar_t): New typedef.
        (struct cpp_buffer): read_ahead, pfile and col_adjust are
        new members.
        (struct lexer_state): New structure that determines the state
        and behaviour of the lexer.
        (IN_DIRECTIVE, KNOWN_DIRECTIVE): New macros.
        (struct cpp_reader): New member "state". Rename
        multiline_string_line and multiline_string_column. Delete
        col_adjust, in_lex_line members.
        (CPP_BUF_COLUMN): Update.

2000-09-18  Richard Henderson  <rth@cygnus.com>

        * combine.c (simplify_comparison): Shift a NOT out of a single
        bit test.

        * combine.c (if_then_else_cond): Canonicalize BImode true to
        STORE_FLAG_VALUE.
        * explow.c (trunc_int_for_mode): Likewise.

        * combine.c (combine_simplify_rtx): Use gen_unary to distribute
        the NOT for De Morgan's rule.
        * simplify-rtx.c (simplify_unary_operation): Simplify a BImode NOT
        of a comparison to the reverse comparison.

        * combine.c (try_combine): Allow split to create a single insn.

        * machmode.def: Add BImode.  Add a column for bitsize.
        * machmode.h (DEF_MACHMODE): Adjust for extra column.
        (GET_MODE_BITSIZE): Use it.
        * rtl.c (DEF_MACHMODE): Adjust for extra column.
        (mode_bitsize): New.
        (mode_mask_array): Use bitsize.
        * combine.c (combine_simplify_rtx): Require inner and outer
        modes to match on nonzero_bits optimizations.

2000-09-18  Bernd Schmidt  <bernds@redhat.co.uk>

        * reload1.c (forget_old_reloads_1): If a hard reg is stored, clear
        its entry in spill_reg_store.
        * config/sh/lib1funcs.ams (movstr_i4 functions): Always compile in.
        * sh.c (reg_no_subreg_operand): New function.
        * sh-protos.h (reg_no_subreg_operand): Declare it.
        * sh.h (PREDICATE_CODES): Add it.
        * sh.md (floatsisf2_i4, floatsidf2_i, extendsfdf2_i4): Use it for
        input operand that needs to be in fpul.
        (fix_truncsfsi2, fix_truncsfsi2_i4): Use register_operand for output.
        * sh.c (find_barrier): Take into account that machine_dependent_reorg
        might add new insns.

2000-09-18  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.c (sh_expand_prologue): Mark GOTaddr2picreg as
        MAYBE_DEAD.
        (sh_expand_epilogue): Take the PIC register into account when
        computing the frame size.

        * config/sh/sh.c (nonpic_symbol_mentioned_p): Check LABEL_REFs.
        * config/sh/sh.md (sym_label2reg, symPLT_label2reg): Protect
        LABEL_REFs with a PIC-safe unspec.

2000-09-18  Will Cohen  <wcohen@redhat.com>

        * extend.texi (Zero Length): State that static initializers for
        zero-length arrays are not allowed.

        * c-typeck.c (process_init_element): Flag initializers for zero
        length arrays.

        * tree.c (integer_all_onesp): Ignore TREE_INT_CST_HIGH if prec is
        exactly HOST_BITS_PERWIDE_INT.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (check_format_info): Properly save the argument
        number and parameter for $ operand number formats in case width
        and precision arguments are also used.  Allow printf width and
        precision arguments to have operand numbers even if none was
        specified for the main format, since this is OK for %*.*m.  Only
        object to missing $ operand number if the format used requires an
        argument.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (format_char_info): Add 'W' flag to comment.
        (print_char_table, scan_char_table): Use it.
        (check_format_info): Use the 'W' flag to determine whether a
        format argument is written into.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (check_format_types): Reorganise and clean up,
        checking earlier for ERROR_MARKs and making cur_type into its
        TYPE_MAIN_VARIANT where convenient.

2000-09-18  Joseph S. Myers  <jsm28@cam.ac.uk>

        * gcc.c (cpp_options): Add specs for __STDC_HOSTED__.

2000-09-18  Bernd Schmidt  <bernds@redhat.co.uk>

        * optabs.c (emit_libcall_block): Set CONST_CALL_P for the call.

        * i386-protos.h (ix86_init_builtins, ix86_expand_builtin): Declare.
        * i386.c (struct builtin_description): New.
        (bdesc_comi, bdesc_2arg, bdesc_1arg): New arrays.
        (mmx_reg_operand): Declare MODE arg as unused.
        (ix86_expand_sse_comi, ix86_expand_sse_compare, safe_vector_operand,
        ix86_expand_unop1_builtin, ix86_expand_unop_builtin,
        ix86_expand_binop_builtin, ix86_expand_store_builtin,
        ix86_init_builtins, ix86_expand_builtin): New functions.
        * i386.h (ix86_builtins): New enumeration.
        (MD_INIT_BUILTINS, MD_EXPAND_BUILTIN): New macros.
        * i386.md (attr length_immediate): 0 for mmx/sse types.
        (attr prefix_0f): 1 for mmx/sse types.
        (setcc_2): Remove "*" so we get gen_setcc_2.
        (emms): Account for changed register numbering.  Set "memory" attr
        to unknown.
        (sfence): Set "memory" attr to unknown.

2000-09-18  Andreas Jaeger  <aj@suse.de>

        * configure.in: Define _GNU_SOURCE only when using the GNU C
        Library.
        * configure: Regenerated.
        * config.in: Regenerated.

2000-09-17  Mark Mitchell  <mark@codesourcery.com>

        * cppinit.c (cpp_init): Don't use ANSI prototypes.
        * flow.c (flow_dump_loop): Likewise.
        (flow_loops_dump): Likewise.

        * c-typeck.c (c_start_case): Fix typo.

2000-09-17  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-decl.c (grokdeclarator): Don't give a warning about defaulting
        to int for plain complex which defaults to complex double.  Do
        warn about defaulting to complex double if pedantic.  Warn about
        complex integer types if pedantic.  Warn about complex types if
        pedantic and not in C99 mode.
        * c-typeck.c (build_unary_op): If pedantic, warn about use of ~
        for complex conjugation.

2000-09-17  Joseph S. Myers  <jsm28@cam.ac.uk>

        * contrib.texi: Update my entry.

Sun Sep 17 18:48:32 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.md (mcu_enhanced): New attribute.
        (mcu_mega): Likewise.
        (extendhisi2): Use mcu_enhanced.
        (zero_extendhisi2): Likewise.
        (call_insn): Use mcu_enhanced and mcu_mega.
        (call_value_insn): Likewise.
        (*sbrx_branch): Use mcu_mega.
        (*sbrx_and_branchsi): Likewise.
        (*sbrx_and_branchhi): Likewise.
        (*tablejump_lib): Likewise.

Sun Sep 17 10:46:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (true_dependence): Allow non-unchanging read to conflict
        with unchanging write.

        * expr.c (store_constructor_field): Accept ALIAS_SET arg.
        (store_constructor): Pass alias_set to it.

        * c-decl.c (grokdeclarator): Reorder tests to avoid looking at
        TYPE_MAIN_VARIANT of ERROR_MARK.
        * c-lex.c (readescape): Avoid using printf syntax we don't recognize.

        * simplify-rtx.c (simplify_unary_operation): Add cases
        FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

2000-09-17  Bernd Schmidt  <bernds@redhat.co.uk>

        * expr.h (emit_library_call, emit_library_call_value): Delete
        declarations.
        * rtl.h (enum libcall_type): New.
        (emit_library_call, emit_library_call_value): Change fn_type arg to
        be of type enum libcall_type.
        * calls.c: Likewise for the function definitions.  Several callers
        throughout changed to use the new enumeration appropriately.
        (emit_library_call_value_1): Likewise.  Put back code to make libcall
        blocks of equal form, but only use it for the two new higher
        enumeration values.

2000-09-16  Mark Mitchell  <mark@codesourcery.com>

        Convert the C front-end to use function-at-a-time mode.
        * c-common.h: Include splay-tree.h.
        (C_DECLARED_LABEL_FLAG): New macro.
        (struct language_function): Add x_scope_stmt_stack and
        x_function_name_declared_p.
        (RECHAIN_STMTS): Move definition.
        (lang_statment_code_p): Likewise.
        (lang_expand_stmt): Likewise.
        (lang_expand_decl_stmt): New variable.
        (lang_expand_function_end): Likewise.
        (current_scope_stmt_stack): New function.
        (add_decl_stmt): Likewise.
        (add_scope_stmt): Likewise.
        (mark_stmt_tree): Likewise.
        (struct c_lang_decl): New structure.
        (DECL_SAVED_TREE): Define.
        (c_mark_lang_decl): New function.
        (c_expand_start_cond): Change prototype.
        (c_finish_then): New function.
        (c_finish_else): Likewise.
        (current_function_name_declared): Remove.
        (set_current_function_name_declared): Likewise.
        (mark_c_language_function): Declare.
        (case_compare): Likewise.
        (c_add_case_label): Likewise.
        (c_expand_expr): Likewise.
        (c_safe_from_p): Likewise.
        * c-common.c (lang_expand_function_end): New variable.
        (struct if_elt): Add if_stmt.
        (c_expand_start_cond): Add the if-statement to the statement-tree,
        rather than generating RTL.
        (c_finish_then): New function.
        (c_expand_start_else): Don't generate RTL.
        (c_finish_else): New function.
        (c_expand_expr_stmt): Don't generate RTL.
        (statement_code_p): Add SCOPE_STMT.
        (case_compare): New function.
        (c_add_case_label): Likewise.
        (mark_stmt_tree): Likewise.
        (c_mark_lang_decl): Likewise.
        (mark_c_language_function): Likewise.
        (c_expand_expr): Likewise.
        (c_safe_from_p): Likewise.
        * c-decl.c (c_stmt_tree): New variable
        (c_scope_stmt_stack): Likewise.
        (c_function_name_declared_p): Likewise.
        (lang_expand_expr_stmt): Remove.
        (poplevel): Don't call output_inline_function for nested
        functions.
        (pushdecl): Don't set DECL_CONTEXT for a local declaration of an
        `extern' function.
        (redeclaration_error_message): Change means of computing whether
        or not a function is nested.
        (lookup_label): Don't call label_rtx.
        (init_decl_processing): Add more GC roots.
        (start_decl): Add DECL_STMTs to the statement-tree, rather than
        calling rest_of_decl_compilation.
        (finish_decl): Don't call expand_decl.
        (store_parm_decls): Begin the statement-tree, but don't generate
        RTL.
        (finish_function): Tie off the statement-tree.  Call c_expand_body
        if appropriate.
        (c_expand_body): New function.
        (push_c_function_context): Save more information.
        (pop_c_function_contxt): Likewise.
        (copy_lang_decl): Now that we use DECL_LANG_SPECIFIC, copy it.
        (lang_mark_tree): Mark it.
        (current_stmt_tree): Adjust.
        (current_scope_stmt_stack): New function.
        (do_case): Remove.
        (set_current_name_declared): Likewise.
        (c_begin_compound_stmt): Define.
        (c_expand_decl_stmt): Likewise.
        * c-lang.c: Include rtl.h and expr.h.
        (lang_init): Set more language-specific hooks.
        * c-lex.c: Include expr.h.
        * c-parse.in: Changes throughout to add statements to the
        statement-tree, rather than generating RTL after every statement.
        * c-semantics.c (lang_expand_decl_stmt): Define.
        (add_decl_stmt): New function.
        (add_scope_stmt): Likewise.
        (finish_stmt_tree): Tweak.
        (genrtl_expr_stmt): Likewise.
        (genrtl_decl_stmt): Handle local labels, and call
        lang_expand_decl_stmt if required.
        (genrtl_for_stmt): Fix line-number handling.
        (genrtl_case_label): Handle cleanups.
        (genrtl_asm_stmt): Don't call combine_strings.
        (genrtl_compound_stmt): Simplify.
        (expand_stmt): Handle SCOPE_STMTs.
        * c-tree.h (struct lang_decl): New structure.
        (C_DECLARED_LABEL_FLAG): Remove.
        (c_begin_compound_stmt): Declare.
        (c_expand_decl_stmt): Likewise.
        (c_expand_start_case): Rename to c_start_case.
        (c_finish_case): New function.
        * c-typeck.c (start_init): Tweak setting of
        constructor_incremental.
        (c_expand_asm_operands): Tweak error-handling.  Add to the
        statement-tree.
        (c_expand_return): Add to the statement-tree.
        (c_expand_start_case): Rename to ...
        (c_start_case): ... this.
        (struct c_switch): New type.
        (switch_stack): New variable.
        (do_case): Simplify.
        (c_finish_case): New function.
        * dependence.c: Include expr.h.
        (enum dependence_type): Change spelling of enumerals.
        (check_node_dependence): Adjust.
        * expr.h (lang_safe_from_p): Declare.
        (safe_from_p): Likewise.
        * expr.c (lang_safe_from_p): New variable.
        (safe_from_p): Give it external linkage.  Use lang_safe_from_p.
        * stmt.c (expand_expr_stmt): Avoid clobberring of last_expr_type.
        * toplev.c (rest_of_decl_compilation): Robustify.
        * tree.c (contains_placeholder_p): Likewise.
        * Makefile.in: Update dependencies.
        * objc/objc-act.h: Adjust calculation of value for dummy_tree_code.
        * objc/objc-act.c: Include rtl.h, expr.h, and c-common.h.
        (objc_expand_function_end): New function.
        (finish_method_def): Use it.
        (init_objc): Initialize more language-specific hooks.
        * objc/Make-lang.in: Update dependencies.
        
2000-09-16  Geoffrey Keating  <geoffk@cygnus.com>

        * configure.in: Define macros that affect features before
        testing for features.  Don't define _XOPEN_SOURCE.
        * configure: Regenerated.
        * config.in: Regenerated.

Sat Sep 16 19:42:50 EDT 2000  John Wehle  (john@feith.com)

        * rtlanal.c (rtx_varies_p): Volatile asms vary.
        (rtx_unstable_p): Restructure code.  Volatile asms
        are unstable.

Sat Sep 16 14:35:55 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.h (no_debugging_symbols): New field.
        * integrate.c (save_for_inline): Renamed from save_for_inline_nocopy.
        Initialize no_debugging_symbols.
        (output_inline_function): Save and restore write_symbols and set from
        no_debugging_symbols.
        * toplev.c (rest_of_compilation): Call save_for_inline.
        * tree.h: Update comment.
        
        * stor-layout.c (place_field): Don't do anything if field or
        its type are ERROR_MARK.

Sat Sep 16 19:14:00 2000  Laurynas Biveinis <lauras@softhome.net>

        * cppfiles.c (purge_cache): Use munmap only if MMAP_THRESHOLD defined.
        (read_include_file): Ensure inc->mmaped is initialized.

2000-09-16  Richard Henderson  <rth@cygnus.com>

        * cppiles.c (purge_cache): Use PTR not caddr_t.

2000-09-16  Hans-Peter Nilsson  <hp@axis.com>

        * gcc.c: In description for %{<S}, say the option removed is -S.
        * invoke.texi (Spec Files): Ditto.

2000-09-16  Andreas Jaeger  <aj@suse.de>

        * configure.in: Always define _GNU_SOURCE to make interfaces
        visible that were hidden by only defining _GNU_SOURCE.
        * configure: Regenerated.

Sat 16-Sep-2000 08:13:45 BST  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (push_macro_context): Set an argument's level after
        calling parse_args.  We could loop infinitely otherwise.

2000-09-15  Tom Tromey  <tromey@cygnus.com>

        * configure, config.in: Rebuilt.
        * configure.in: Check for iconv.h.  Define _XOPEN_SOURCE.

2000-09-15  Greg McGary  <greg@mcgary.org>

        * cppmacro.c (check_trad_stringification): Check token
        text pointers against limit before dereferencing.

2000-09-15  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (format_wanted_type): New structure.
        (check_format_types): New function.
        (check_format_info): Pass all checking of types of format
        arguments, including width and precision arguments, to this new
        function.

2000-09-15  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * BUGS: Remove file.

2000-09-15  Jakub Jelinek  <jakub@redhat.com>

        * config/alpha/alpha.c (override_options): ev6 cache latencies
        from Richard Henderson.  Don't allow -mmemory-latency=L0.

        * config/alpha/alpha.h (TARGET_CPU_EV5, TARGET_CPU_EV6): Define.
        (TARGET_OPTIONS): Add tune=.
        (alpha_tune_string): Declare.
        * config/alpha/alpha.c (override_options): Add cpu_table.
        Use alpha_cpu_string first to set both alpha_cpu and target_flags
        and then alpha_tune_string to set alpha_cpu only.
        Replace tests for PROCESSOR_EV* with TARGET_CPU_EV* tests.
        * config/alpha/elf.h (ASM_FILE_START): Likewise.
        * config/alpha/osf.h (ASM_FILE_START): Likewise.
        * config/alpha/openbsd.h (ASM_FILE_START): Likewise.

Fri Sep 15 19:45:55 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386-protos.h (no_comparison_operator, uno_comparison_operator):
        Remove.
        (ix86_comparison_operator, ix86_cc_mode): Declare
        * i386.h (CCGC, CCGCO): New modes.
        (SELECT_CC_MODE): Move offline to ....
        * i386.c (ix86_cc_mode): .... here; use new modes.
        (ix86_comparison_operator): New.
        (fcmov_comparison_operator): Ensure proper mode.
        (put_condition_mode): More sanity checking.
        (ix86_match_ccmode): Handle new modes.
        (ix86_expand_fp_compare): GEU requires CCmode.
        (ix86_expand_strlensi_unroll_1): Use emit_cmp_and_jump_insn instead of
        doing it by hand.
        * i386.md (cmp?i_ccz_1): Remove
        (cmp?i_ccno_1): Use ix86_match_ccmode.
        (cmp?i_minus_1): New.
        (cmpsi_1): New expander.
        (cmpqi_ext_1): Use match_ccmode
        (cmpqi_ext_3): New expander.
        (cmpqi_ext_3_insn): Rename from cmpqi_ext_3.
        (cmpqi_ext_4): Use match_ccmode.
        (add?i_?): Use match_ccmode.
        (add?i_6): New.
        (test?i_ccz_1): Remove
        (test?i_1): New.
        (testsi_ccno_1, testqi_ccz_1, testqi_ext_ccno_0): New expander.
        (testqi_ext_0): Use ix86_match_ccmode.
        (*xorqi_cc_ext_1): Use ix86_match_ccmode.
        (xorqi_cc_ext_1): New expander.
        (shift patterns): Use CCGOCmode for all shifts except for sar.
        (setcc_?, jcc_?, miv?icc_nic): Use ix86_comparison_operator.
        (setcc_3, jcc_3, miv?icc_c): Remove.

2000-09-15  Will Cohen  <wcohen@redhat.com>

        * dwarf2out.c (add_const_value_attribute): Changed array into a
        xmalloced object, so it exists after function exit.
        (free_AT): Added case for dw_val_class_float to free allocated
        memory.

2000-09-15  Kazu Hirata  <kazu@hxi.com>

        * config/i386/i386.md: Fix a comment typo.
        * gcc.c: Fix formatting.

2000-09-15  Bernd Schmidt  <bernds@redhat.co.uk>

        * optabs.c (emit_libcall_block): If target is a user variable,
        copy to a temporary first.
        * expr.c (convert_move): When generating a libcall, make a libcall
        block.
        * calls.c (emit_library_call_value_1): Don't create a libcall
        sequence here; our caller will in most cases do it.

        * sh.h (SECONDARY_INPUT_RELOAD_CLASS): Handle moving T, MACL or
        MACH into FPUL.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Similar case.
        * sh.md (reload_outsf): Generate recognizable patterns for
        TARGET_SH3E.
        (floatsisf2, floatsisf2_ie, floatsisf2_i4, fix_truncsfsi2,
        fix_truncsfsi2_i4, fixsfsi, floatsidf2, floatsidf2_i, fix_truncdfsi2,
        fix_truncdfsi2_i, extendsfdf2, extendsfdf2_i4, truncdfsf2,
        truncdfsf2_i4): Change not to use explicit references to fpul.
        (floatsisf2_ie): Remove USE of fpscr.
        (floatsisf2): Change default expansion to match this.
        (fix_truncsfsi2_i4_2, fix_truncdfsi2_i4 & splitters): Comment out
        unused patterns.

2000-09-15  Richard Henderson  <rth@cygnus.com>

        * expmed.c (store_bit_field): Consider naturally aligned
        memory for direct reference.

2000-09-15  Richard Henderson  <rth@cygnus.com>

        * config/alpha/alpha.c (alpha_expand_unaligned_load): Force all
        AND addresses into alias set 0.
        (alpha_expand_unaligned_store): Likewise.
        (alpha_expand_unaligned_load_words): Likewise.
        (alpha_expand_unaligned_store_words): Likewise.

2000-09-15  Bernd Schmidt  <bernds@redhat.co.uk>

        * config/sh/sh.h (CPP_SPEC): For -m4-nofpu, define __SH4_NOFPU__.
        * config/sh/lib1funcs.asm (movstr_i4): Also compile if __SH4_NOFPU__
        is defined.
        * config/mips/mips.c (mips_va_arg): Args passed by reference have a
        rsize of UNITS_PER_WORD.

Fri 15-Sep-2000 06:49:07 BST  Neil Booth  <NeilB@earthling.net>

        * cpplex.c (ON_REST_ARG): Correct the test.
        (maybe_paste_with_next): Duplicate a token that fail pasting,
        and clear its PASTE_LEFT flag, so that nested pasting attempts
        do not occur.

2000-09-14  Richard Henderson  <rth@cygnus.com>

        * calls.c (precompute_register_parameters): Use COSTS_N_INSNS, not 2.
        * cse.c (rtx_cost): Likewise.
        * optabls.c (expand_binop): Likewise.
        (expand_twoval_binop, prepare_cmp_insn): Likewise.
        * regclass.c (copy_cost): Likewise.
        * reload1.c (reload_cse_move2add): Likewise.

2000-09-14  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-parse.in (reswords): Add _Complex.

2000-09-14  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * gcc.1: Delete documentation for -undef preprocessor option.

2000-09-14  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
        STARTFILE_SPEC, ENDFILE_SPEC): Remove define.
        * config/sh/elf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP):
        Remove undefine before config/elfos.h.
        * config/sh/t-sh (EXTRA_MULTILIB_PARTS): Comment out.

2000-09-14  Kazu Hirata  <kazu@hxi.com>

        * invoke.texi (H8/300 Options): Add -ms2600.
        * config/h8300.c (h8300_init_once): Output an error when -ms2600
        is used without -ms.
        * config/h8300.h (TARGET_MAC): New.
        (TARGET_SWITCHES): Add -ms2600 and -mno-s2600.
        (CONDITIONA_REGISTER_USAGE): Disable the mac register on any
        machine other than H8/S2600.
        * config/h8300.md: Accept mac instructions on the H8/S2600 instead
        of the H8/S2000.

2000-09-14  Alexandre Oliva  <aoliva@redhat.com>, Bernd Schmidt  <bernds@redhat.co.uk>

        * reload.c (find_reloads_address_1): Generate reloads for auto_inc
        pseudos that refer to the original pseudos, not only to their
        equivalent memory locations.

Thu Sep 14 12:10:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (expand_expr, case COMPONENT_EXPR): Copy memory attributes
        when making new MEM.

        * Makefile.in (LN): Remove duplicate definition.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

        From Joern Rennecke:
        * local-alloc.c (update_equiv_regs): If there is no REG_EQUAL note
        on an insn and function_invariant_p returns nonzero for the source,
        add a REG_EQUAL note.

Thu Sep 14 00:51:57 EDT 2000  John Wehle  (john@feith.com)

        * alias.c (memrefs_conflict_p): An ADDRESSOF doesn't
        conflict with frame_pointer_rtx.

2000-09-13  Kazu Hirata  <kazu@hxi.com>

        * loop.c: Fix formatting.
        * loop.h: Likewise.

2000-09-13  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (divsf3): New.
        (divsf3_internal_lat, divsf3_internal_thr): New.
        (divdf3, divdf3_internal_lat, divdf3_internal_thr): New.
        (divtf3, divtf3_internal_lat, divtf3_internal_thr): New.
        (adddf3_trunc, subdf3_trunc, muldf3_trunc): New.
        (madddf4_trunc, msubdf4_trunc, nmuldf3_trunc): New.
        (nmadddf4_alts, nmadddf4_trunc): New.
        (addtf3_truncsf, addtf3_truncdf, subtf3_truncsf): New.
        (subtf3_truncdf, multf3_truncsf, multf3_truncdf): New.
        (multf3_truncsf_alts, multf3_truncdf_alts): New.
        (maddtf4_truncsf, maddtf4_truncdf, maddtf4_alts_truncdf): New.
        (msubtf4_truncsf, msubtf4_truncdf, nmultf3_truncsf): New.
        (nmultf3_truncdf, nmaddtf4_truncsf, nmaddtf4_truncdf): New.
        (nmaddtf4_truncdf_alts): New.
        (recip_approx): Don't predicate.

2000-09-13  Richard Henderson  <rth@cygnus.com>

        * config/ia64/lib1funcs.asm (__divsf3): Protect fnorm.s with p6.

2000-09-13  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * flags.h (flag_dump_rtl_in_asm): Declare.
        * toplev.c (flag_dump_rtl_in_asm): Define.
        (decode_d_option): Set flag_dump_rtl_in_asm and flag_print_asm_name
        if -dP is specified.
        * rtl.h (print_rtx_head): Declare.
        * print-rtl.c (print_rtx_head): Define.
        (print_rtx): Print the string pointed to by print_rtx_head
        at beginning of each dump line.
        (print_rtl): Likewise.
        (print_rtl_single): Likewise.
        * final.c (final_scan_insn): Dump the insn in the assembly
        file for debugging.
        * gcc.1: Document -dP option.
        * invoke.texi (Debugging Options): Likewise.

2000-09-13  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * md.texi (Machine Constraints): Document the 68HC11 constraints.
        * install.texi (Configurations): Document the 68HC11&68HC12 port.
        * invoke.texi (Option Summary, M68hc1x Options): Document the options.

Tue Sep 12 13:51:13 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.h (ASSEMBLER_DIALECT): New macro declared.
        * config/avr/avr.md (*movstrqi_insn): Cleanup output template.
        (*clrstrqi): Likewise.
        (xorhi3,xorsi3,absqi2): Likewise.
        (one_cmplhi2,one_cmplsi2): Likewise.
        (addsi3): Two stupid constraint alternatives removed.
        (extendhisi2): Use `movw' for enhanced avr cores.
        (zero_extendhisi2): Likewise.

Wed Sep 13 02:31:23 EDT 2000  John Wehle  (john@feith.com)

        * alias.c (find_base_term): Use frame_pointer_rtx
        when handling an ADDRESSOF.

        * cse.c (canon_hash): Handle USE of BLKmode memory.
        (cse_insn): Outgoing arguments for a libcall don't
        affect any recorded expressions.

2000-09-12  Tom Tromey  <tromey@cygnus.com>

        * configure, config.in: Rebuilt.
        * configure.in: Check for iconv, nl_langinfo, langinfo.h.

2000-09-12  Jakub Jelinek  <jakub@redhat.com>

        * c-lex.c (lex_string): Use charwidth to compute bytemask.
        * expr.c (expand_expr): Don't optimize constant array references
        initialized with wide string constants.

2000-09-13  Michael Hayes  <mhayes@cygnus.com>

        * loop.c (note_set_pseudo_multiple_uses): Correct.

2000-09-12  Jim Wilson  <wilson@cygnus.com>

        * ifcvt.c (noce_process_if_block): If A and B are the same, and no
        else block, and X has side-effects, then fail.

2000-09-12  Greg McGary  <greg@mcgary.org>

        * config/mips/mips-protos.h
        (trap_cmp_op, mips_gen_conditional_trap): New func decls.
        * config/mips/mips.h (ISA_HAS_COND_TRAP): New macro.
        (PREDICATE_CODES): Add "trap_cmp_op".
        * config/mips/mips.c
        (trap_cmp_op, mips_gen_conditional_trap): New functions.
        * config/mips/mips.md (trap, conditional_trap): New patterns.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

        * flow.c (try_pre_increment_1): Don't do anything to sets of the stack
        pointer.

2000-09-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (built_in_decls): New array.
        (expand_builtin_fputs): New function.
        (expand_builtin): Handle BUILT_IN_FPUTC and BUILT_IN_FPUTS.

        * builtins.def (BUILT_IN_FPUTC, BUILT_IN_FPUTS): New members.

        * c-common.c (c_common_nodes_and_builtins): Handle fputc/fputs.

        * tree.h (built_in_decls): New array.

Tue Sep 12 08:53:57 2000  Jeffrey A Law  (law@cygnus.com)

        * convex.md: Use "+" instead of "=" for outputs wrapped in a
        STRICT_LOW_PART.
        * i370.md, i386.md, ns32k.md, sh.md, vax.md: Likewise.

2000-09-12  Kazu Hirata  <kazu@hxi.com>

        * haifa-sched.c: Fix formatting.

        * genattrtab.c: Fix formatting.

        * unroll.c: Fix formatting.

2000-09-12  Bruce Korb  <bkorb@gnu.org>

        * fixinc/fixfixes.c: make a type for the fix procedure & use it,
        remove obsolete code
        * fixinc/fixincl.c: Use PARAMS, not _P_.  Add no-op default to switch.
        * fixinc/fixincl.tpl: make non-exported arrays static scope
        * fixinc/fixincl.x: regenerate
        * fixinc/fixlib.h: Use PARAMS, not _P_
        * fixinc/fixtests.c: make a type for the test proc & use it
        * fixinc/server.h: Use PARAMS, not _P_

2000-09-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-typeck.c (process_init_element): Avoid union init warnings on
        floating point zero.  Don't crash on unions containing structs.

2000-09-12  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (PREDICATE_CODES): Add CONST_DOUBLE to
        general_movsrc_operand, and remove CONST_INT from
        general_movdst_operand.

2000-09-12  Bernd Schmidt  <bernds@redhat.co.uk>

        * cse.c (approx_reg_cost): If SMALL_REGISTER_CLASSES, return INT_MAX
        if a reference to non-fixed hardreg is seen.  Otherwise, count hard
        regs with a higher cost.
        (preferrable): Deal with cases where either cost or regcost is
        MAX_COST.
        (cse_insn): Use MAX_COST rather than 10000.  Always initialize
        regcost values.
        (COSTS_N_INSNS): Move definition...
        * rtl.h: ...here.
        (MAX_COST): New macro.
        * loop.c (init_loop): Use COSTS_N_INSNS macro instead of hardcoded
        constant.

2000-09-11  Mark Mitchell  <mark@codesourcery.com>

        * c-common.h (genrtl_clear_out_block): Remove.
        * c-semantics.c (genrtl_clear_out_block): Remove.
        (genrtl_while_stmt): Don't call it.
        (genrtl_for_stmt): Likewise.

2000-09-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cppfiles.c: Move all default-#defines to top of file.
        (open_include_file): Replace by lookup_include_file.
        (read_with_read, read_file): Merged into read_include_file.
        (stack_include_file, purge_cache): New functions.
        (close_cached_fd): Delete.
        (lookup_include_file, read_include_file, _cpp_pop_file_buffer):
        Cache the in-memory buffer, not the file descriptor.

        * cpphash.h (struct include_file): Add buffer, st, refcnt,
        mapped fields.
        (xcnew): New utility macro.
        (DO_NOT_REREAD, NEVER_REREAD): Move up by struct include_file.
        * cpplib.h (struct cpp_buffer): Remove mapped field.

2000-09-11  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplex.c (parse_string): Accept backslash space newline as a
        line continuation.
        (lex_line): Likewise.
        (_cpp_get_token): Remove hard limit on macro nesting.

2000-09-12  Philipp Thomas  <pthomas@suse.de>

        * aclocal.m4 (AM_WITH_NLS): Don't force use of included gettext.
        * configure: Rebuilt.

2000-09-13  Michael Hayes  <mhayes@cygnus.com>

        * flow.c (split_block): Fix update of registers live at
        end of split block.

Tue Sep 12 01:51:38 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * i386.md (add?i_3, add?i_5): New.
        (add?i_4): Rename from add?i_3;  Fix compare pattern.
        (sub?i_3, xor?i_3, ior?i_3): New.

        * genrecog.c (write_tree): Output code to clear insn_extract cache.
        * genattrtab.c (write_attr_case): Gen call to extract_insn_cache
        instead of extract_insn and extract_constrain_insn_cache instead of
        extract_insn and constrain_operands.
        * recog.c (extract_insn_cached, extract_constrain_insn_cached):
        New functions.
        (extract_insn): Clear which_alternative.
        (constrain_operands): Set which_alternative to -1 when failed.
        * recog.h (extract_constrain_insn_cached, extract_insn_cached):
        Declare.

2000-09-11  Matthew Hiller  <hiller@redhat.com>

        * config/h8300/h8300.md (movstrictqi): Changed constraint modifier
        on operand 0 to '+'.
        (movstricthi): Likewise.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

        * loop.h (LOOP_IVS): New macro.
        (REG_IV_TYPE, REG_IV_INFO): Add ivs argument.
        (struct loop_ivs): New.
        (struct loop_info): Add ivs field.
        (reg_iv_type, reg_iv_info): Delete prototype.
        (reg_biv_class, loop_iv_list): Likewise.
        * loop.c (record_biv, find_life_end): Pass loop argument.
        (reg_iv_type): Remove global array and use
        field in loop_regs structure within loop_ivs structure.
        (reg_iv_info, reg_biv_class, loop_iv_list): Likewise.
        (first_increment_giv, last_increment_giv): Use entry in
        loop_ivs structure.
        (record_initial): Pass ivs pointer.
        * unroll.c (copy_loop_body, remap_split_bivs): Add loop argument.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

        * loop.h (LOOP_REGS): New macro.
        (struct loop_regs): New.
        (struct loop_info): Add regs field.
        * loop.c (set_in_loop): Remove global array and store
        in loop_regs structure as part of loop_info structure.
        (n_times_set, may_not_optimize): Likewise.
        (reg_single_usage, moved_once): Likewise.
        (count_one_set): Add regs argument.
        (combine_movables, rtx_equal_for_loop_p, combine_givs): Likewise.
        (set_pseudo_multiple_uses): Pass regs pointer.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

        * unroll.c (iteration_info): Subsume into loop_iterations.
        * loop.h (loop_info): New field iv.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

        * basic-block.h (LOOP_TREE, LOOP_PRE_HEADER, LOOP_EDGES): New.
        (LOOP_EXITS_DOMS, LOOP_ALL): Likewise.
        (flow_loops_update): New prototype.
        (flow_loops_find): Add flags to prototype.
        (struct loop): Add `pre_header_root' and `pre_header_trace' fields.
        * flow.c (flow_loop_pre_header_scan): New.
        (flow_loop_dump): Dump pre-header root and trace and exit dominators.
        (flow_loop_free): Free pre-header root and trace and exit dominators.
        (flow_loops_find): New argument flags.
        (flow_loops_update): New function.
        * toplev.c (rest_of_compilation): Add flag argument to flow_loops_find.

2000-09-12  Michael Hayes  <mhayes@cygnus.com>

        * basic-block.h (split_block, update_bb_for_insn): New prototypes.
        * flow.c (split_block, update_bb_for_insn): New functions.

2000-09-11  Richard Henderson  <rth@cygnus.com>

        * cse.c (fold_rtx): Honor NO_FUNCTION_CSE.

2000-09-11  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64-protos.h (fr_nonimmediate_operand): Declare.
        * config/ia64/ia64.c (fr_nonimmediate_operand): New.
        (ia64_override_options): Prevent optimizing division for both
        latency and throughput.
        (rtx_needs_barrier): Handle frcpa.
        * config/ia64/ia64.h (MASK_INLINE_DIV_LAT): New.
        (MASK_INLINE_DIV_THR, TARGET_INLINE_DIV_LAT): New.
        (TARGET_INLINE_DIV_THR, TARGET_INLINE_DIV): New.
        (TARGET_SWITCHES): Add -minline-divide-min-latency and
        -minline-divide-max-throughput.
        (PREDICATE_CODES): Update.
        * config/ia64/ia64.md (extendsidi2): Remove * from f case.
        (zero_extendsidi2): Likewise.  Fix typo in f case insn.
        (extendsfdf2): Add cases for gr<->fr and fr<->mem.
        (extendsftf2): Likewise.
        (extenddftf2): Likewise.
        (fix_trunctfdi2_alts): New.
        (fixuns_trunctfdi2_alts): New.
        (madd*4): Rename from madd*3.
        (divsi3, modsi3, udivsi3, umodsi3): New.
        (divsi3_internal): New.
        (divdi3, moddi3, udivdi3, umoddi3): New.
        (divdi3_internal_lat, divdi3_internal_thr): New.
        (multf3_alts, maddtf4_alts, nmaddtf4_alts): New.
        (recip_approx): New.

2000-09-11  Alexandre Oliva  <aoliva@redhat.com>

        * print-rtl.c (debug_call_placeholder_verbose): New variable.
        (print_rtx) [CALL_PLACEHOLDER]: Dump all call sequences if it is
        set.
        * integrate.c (copy_rtx_and_substitute): Don't share
        LEAF_REG_REMAPpable registers with the inlined function.  Don't
        share the function value with calling sequences.

2000-09-11  Jakub Jelinek  <jakub@redhat.com>

        * c-decl.c (do_case): Fix a typo.

        * combine.c (simplify_if_then_else): Don't convert a == b ? b : a
        to a if the comparison is floating mode and not -ffast-math.
        * simplify-rtx.c (simplify_ternary_operation): Likewise.

Mon Sep 11 20:07:48 2000  J"orn Rennecke <amylaar@redhat.co.uk>

        * sh.h (INITIALIZE_TRAMPOLINE): Remove stray call to
        gen_ic_invalidate_line.

2000-09-11  Philip Blundell  <pb@futuretv.com>

        * config/arm/elf.h (SUBTARGET_CPP_SPEC): Don't define `arm_elf'.

Mon Sep 11 10:48:41 2000  Ulrich Drepper <drepper@redhat.com>

        * install.texi (LANGUAGES): Update to include new languages.
        * INSTALL: Rebuilt.

2000-09-11  DJ Delorie  <dj@redhat.com>

        * gcc.c (main): Don't warn about unused -B prefixes
        (unused_prefix_warnings): remove

2000-09-11  Kazu Hirata  <kazu@hxi.com>

        * final.c: Fix formatting.

        * integrate.c: Fix formatting.

2000-09-11  Geoff Keating  <geoffk@cygnus.com>

        * alias.c (memrefs_conflict_p): An ADDRESSOF does conflict, sorry.

2000-09-11  Bernd Schmidt  <bernds@redhat.co.uk>

        * reload.c (regno_clobbered_p): Fix thinko in previous change.

2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * gcc.1: Document 68hc11 specific options.

2000-09-10  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/sysv4.h (MASK_LONG_DOUBLE_128): Define.
        (TARGET_LONG_DOUBLE_128): Define.
        (SUBTARGET_SWITCHES): Add -mlong-double-64 and -mlong-double-128.
        (LONG_DOUBLE_TYPE_SIZE): Redefine.
        (MAX_LONG_DOUBLE_TYPE_SIZE): Define.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define depending on definition
        of __LONG_DOUBLE_128__.
        (CPP_SYSV_SPEC): Define __LONG_DOUBLE_128__ if -mlong-double-128
        passed.
        (CPP_LONGDOUBLE_DEFAULT_SPEC): Define.
        (CPP_SYSV_DEFAULT_SPEC): Define.
        (SUBTARGET_EXTRA_SPECS): Add cpp_longdouble_default.
        (INIT_TARGET_OPTABS): Define.

        * config/rs6000/aix.h (RS6000_ITRUNC): Moved from rs6000.h.
        (RS6000_UITRUNC): Likewise.
        (INIT_TARGET_OPTABS): New macro.
        * config/rs6000/rs6000.c (rs6000_trunc_used): Delete.
        (trunc_defined): Delete.
        (output_prolog): Don't output .extern definitions for fp->int
        conversion routines, ASM_OUTPUT_EXTERNAL_LIBCALL will do it.
        * config/rs6000/rs6000.h (rs6000_trunc_used): Delete.
        (trunc_defined): Delete.
        (RS6000_ITRUNC): Moved to aix.h.
        (RS6000_UITRUNC): Likewise.
        * config/rs6000/rs6000.md (fix_truncdfsi2): Fail if it would
        only emit a libcall.
        (fixuns_truncdfsi2): Delete.
        (trunc_call): Delete.
        (trunc_call_rtl): Delete.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

        * varasm.c (make_decl_rtl): Restore leading star on
        DECL_ASSEMBLER_NAME set for decls with an asmspec.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

        * c-pragma.c (handle_pragma_pack): Correct parsing logic so it
        won't give a spurious error for '#pragma pack()'.  Simplify
        control flow for readability.  'reset' action is not necessary.

2000-09-10  Zack Weinberg  <zack@wolery.cumb.org>

        * defaults.h: Provide default definitions for: CHAR_TYPE_SIZE,
        SHORT_TYPE_SIZE, INT_TYPE_SIZE, LONG_TYPE_SIZE,
        LONG_LONG_TYPE_SIZE, WCHAR_TYPE_SIZE, FLOAT_TYPE_SIZE,
        DOUBLE_TYPE_SIZE, LONG_DOUBLE_TYPE_SIZE, and WCHAR_UNSIGNED.

        * cppexp.c, dwarfout.c, dwarf2out.c, emit-rtl.c, final.c, optabs.c,
        profile.c, sdbout.c, tradcif.y, tree.c:
        Include defaults.h if not already included.
        Don't define the above macros.

        * Makefile.in: Update dependencies.

2000-09-10  Mark Mitchell  <mark@codesourcery.com>

        * c-common.h (add_stmt): Change prototype.
        (RECHAIN_STMTS): New macro.
        (CASE_LABEL_DECL): Likewise.
        (genrtl_case_label): Change prototype.
        (c_expand_start_case): Remove prototype.
        (build_case_label): Change prototype.
        (decl_constant_value): Declare.
        * c-common.c (check_case_value): Handle C++'s extensions to C
        semantics.
        * c-commnon.def (CASE_LABEL): Add room for the CASE_LABEL_DECL
        field.
        * c-parse.in (stmt): Adjust handling of return statements and case
        laels.
        * c-semantics.c (add_stmt): Return the new statement.
        (genrtl_return_stmt): Take the RETURN_STMT as input, not the
        returned expression.  Directly generate RTL, rather than calling
        c_expand_return.
        (genrtl_switch_stmt): Don't call c_expand_start_case.
        (build_case_label): Take the LABEL_DECL as input, too.
        (genrtl_case_label): Just call add_case_node.
        (expand_stmt): Adjust calls to genrtl_return_stmt and
        genrtl_case_label.
        * c-tree.h (c_expand_start_case): Declare.
        * c-typeck.c (decl_constant_value): Give it external linkage.
        (c_expand_return): Don't call expand_return or expand_null_return;
        use genrtl_return_stmt instead.
        * stmt.c (struct nesting): Remove num_ranges field.
        (add_case_node): Give it external linkage.
        (expand_start_case): Don't set num_ranges.
        (expand_start_case_dummy): Don't clear it.
        (pushcase): Rely on add_case_node to handle `default' labels.
        (add_case_node): Handle `default' labels.
        * tree.c (tree_int_cst_compare): New function.
        * tree.h (tree_int_cst_compare): Declare.
        (add_case_node): Likewise.

2000-09-10  Richard Henderson  <rth@cygnus.com>

        * c-parse.in: Revert last change.
        (init_reswords): Do not enter disabled keywords into the ridpointers
        table, modulo objc weirdness.
        (_yylex): Return the canonical spelling for a keyword.

2000-09-10  Philip Blundell  <philb@gnu.org>

        * config/arm/arm.h (CPP_ISA_SPEC): Don't define `arm' or `thumb'.
        * config/arm/linux-elf.h (CPP_PREDEFINES): Don't define `__arm__'.

Sun Sep 10 14:30:28 EDT 2000  John Wehle  (john@feith.com)

        * alias.c (find_base_term): Handle ADDRESSOF.
        (memrefs_conflict_p): An ADDRESSOF doesn't conflict.

2000-09-10  Denis Chertykov  <denisc@overta.ru>

        * genoutput.c (output_insn_data): Translate <NEWLINE> to \n\ while
        outputting templates with many lines.

2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * libgcc2.h: Use LONG_LONG_TYPE_SIZE instead of MIN_UNITS_PER_WORD
        to decide whether 64-bit support must be generated.

2000-09-10  Richard Henderson  <rth@cygnus.com>

        * c-parse.in (asm patterns): Fix volatile check.

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

        * cppmacro.c (check_trad_stringification): New function.
        (save_expansion): If -Wtraditional, warn about stringification of
        macro arguments.

2000-09-11  Michael Hayes  <mhayes@cygnus.com>

        * loop.h (struct loop_mem_info): Move from loop.c
        (struct loop_info): Add fields store_mems, mems, mems_idx,
        mems_allocated, unknown_address_altered,
        unknown_constant_address_altered, num_mem_sets, and
        first_loop_store_insn.

        * loop.c (loop_store_mems): Replace with field in loop_info struct.
        (loop_mems, loop_mems_idx, loop_mems_allocated): Likewise.
        (unknown_address_altered, unknown_constant_address_altered): Likewise.
        (num_mem_sets): Likewise.
        (replace_loop_mems, replace_loop_regs): New.
        (struct loop_replace_args): New.
        (load_mems): Use replace_loop_mems.
        (try_copy_prop): Use replace_loop_regs.
        (replace_loop_reg, replace_loop_mem): Use loop_replace_args structure.

2000-09-09  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * configure.in: Recognize m6811-elf and m6812-elf.
        * configure: Regenerate.

2000-09-09  Geoff Keating  <geoffk@cygnus.com>

        * recog.c (validate_replace_rtx_1): Correct MODE parameter in call
        to operand_subword.

2000-09-10  Michael Hayes  <mhayes@cygnus.com>

        * loop.c (struct movables): New.
        (num_movables): Move into struct movables.
        (the_movables): Change type to struct movables.
        (ignore_some_movables): Change struct movable arg to struct movables.
        (force_movables, combine_movables, regs_match_p): Likewise.
        (rtx_equal_for_loop_p, move_movables): Likewise.
        (scan_loop): Change movables to be of type struct movables.
        Replace last_movable with field in movables structure.

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

        * c-pragma.c: Don't elide entire file if !HANDLE_GENERIC_PRAGMAS.
        (init_pragma): Avoid warning if pfile happens to be unused.
        * c-pragma.h: Never define HANDLE_GENERIC_PRAGMAS.  Never
        define init_pragma to nothing.  Always prototype
        init_pragma.  Prototype dispatch_pragma if !USE_CPPLIB.

        * c-lex.c (process_directive): Always call dispatch_pragma.
        Initialize entering_c_header to 0.

2000-09-08  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * config/m68hc11/m68hc11.md: New file, machine description for
        68HC11 & 68HC12.
        * config/m68hc11/m68hc11.h: New file, definitions for 68HC11 & 68HC12.
        * config/m68hc11/m68hc11.c: New file, functions for 68HC11 & 68HC12.
        * config/m68hc11/m68hc12.h: New file, definitions for 68HC12.
        * config/m68hc11/m68hc11-protos.h: New file.
        * config/m68hc11/m68hc11-crt0.S: New file, startup code.
        * config/m68hc11/t-m68hc11-gas: New file, makefile fragment.
        * config/m68hc11/xm-m68hc11.h: New file, target defs.
        * config/m68hc11/larith.asm: New file, libgcc routines.

2000-09-08  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

        * Makefile.in (DPBIT_FUNCS): Add _usi_to_df.
        (FPBIT_FUNCS): Add _usi_to_sf.
        * config/fp-bit.c (usi_to_float): New function.
        * config/fp-bit.h (L_usi_to_sf, L_usi_to_df): Define.
        (usi_to_float): Add appropriate #define.

2000-09-08  Bernd Schmidt  <bernds@redhat.co.uk>

        * i386-protos.h (sse_comparison_operator, mmx_reg_operand): Declare
        new functions.
        * i386.c (sse_comparison_operator, mmx_reg_operand): New functions.
        * i386.md (attr "type"): Add sse and mmx types.
        (attr "memory"): Handle them without a crash.
        (movsi_1, movdi_2): Allow MMX regs.
        (movdi splits): Don't split moves involving MMX regs.
        (setcc_4): Remove '*' from pattern name so we get a gen_setcc4.
        (movv4sf_internal, movv4si_internal, movv8qi_internal,
        movv4hi_internal, movv2si_internal, movv8qi, movv4hi, movv2si,
        movv4sf, movv4si, pushv4sf, pushv4si, pushv8qi, pushv4hi, pushv2si,
        sse_movaps, sse_movups, sse_movmskps, mmx_pmovmskb, mmx_maskmovq,
        sse_movntv4sf, sse_movntdi, sse_movhlps, sse_movlhps, sse_movhps,
        sse_movlps, sse_loadss, sse_movss, sse_storess, sse_shufps,
        addv4sf3, vmaddv4sf3, subv4sf3, vmsubv4sf3, mulv4sf3, vmmulv4sf3,
        divv4sf3, vmdivv4sf3, rcpv4sf2, vmrcpv4sf2, rsqrtv4sf2, vmrsqrtv4sf2,
        sqrtv4sf2, vmsqrtv4sf2, sse_andti3, sse_nandti3, sse_iorti3,
        sse_xorti3, maskcmpv4sf3, maskncmpv4sf3, vmmaskcmpv4sf3,
        vmmaskncmpv4sf3, sse_comi, sse_ucomi, sse_unpckhps, sse_unpcklps,
        smaxv4sf3, vmsmaxv4sf3, sminv4sf3, vmsminv4sf3, cvtpi2ps, cvtps2pi,
        cvttps2pi, cvtsi2ss, cvtss2si, cvttss2si, addv8qi3, addv4hi3,
        addv2si3, ssaddv8qi3, ssaddv4hi3, usaddv8qi3, usaddv4hi3, subv8qi3,
        subv4hi3, subv2si3, sssubv8qi3, sssubv4hi3, ussubv8qi3, ussubv4hi3,
        mulv4hi3, smulv4hi3_highpart, umulv4hi3_highpart, mmx_pmaddwd,
        mmx_iordi3, mmx_xordi3, mmx_anddi3, mmx_nanddi3, mmx_uavgv8qi3,
        mmx_uavgv4hi3, mmx_psadbw, mmx_pinsrw, mmx_pextrw, mmx_pshufw,
        eqv8qi3, eqv4hi3, eqv2si3, gtv8qi3, gtv4hi3, gtv2si3, umaxv8qi3,
        smaxv4hi3, uminv8qi3, sminv4hi3, ashrv4hi3, ashrv2si3, lshrv4hi3,
        lshrv2si3, mmx_lshrdi3, ashlv4hi3, ashlv2si3, mmx_ashldi3,
        mmx_packsswb, mmx_packssdw, mmx_packuswb, mmx_punpckhbw,
        mmx_punpckhwd, mmx_punpckhdq, mmx_punpcklbw, mmx_punpcklwd,
        mmx_punpckldq, emms, sfence, ldmxcsr, prefetch, stmxcsr, sse_clrti,
        mmx_clrdi): New patterns.

2000-09-08  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c: Don't include tm.h directly.

Fri Sep  8 14:34:56 MET DST 2000  Jan Hubicka  <jh@suse.cz>

        * recog.c (validate_replace_rtx_1): Fix confusion about equality
        testing; simplify subregs of constants and nested subregs.

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

        * config/sh/sh.md (symPLT_label2reg): Use operand3 for PIC reg.

2000-09-08  Bernd Schmidt  <bernds@redhat.co.uk>

        * combine.c (combine_simplify_rtx): Try to simplify VEC_SELECT of a
        VEC_CONCAT.
        * rtl.texi (description of USE): Add note about possible pitfalls
        with this rtx.
        From Richard Henderson:
        * reload1.c (choose_reload_regs): Compute need_mode properly.

2000-09-07  Richard Henderson  <rth@cygnus.com>

        * config/ia64/lib1funcs.asm (__divsi3): Use .s1 for frcpa.
        (__modsi3, __umodsi3): Likewise.
        (__udivsi3): Likewise.  Normalize the TFmode values.

2000-09-07  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/sol-c0.c (_start): Declare `termfunc' parameter
        with a prototype.
        * config/rs6000/rs6000.h (RS6000_ARG_SIZE): Use cast to suppress
        warning.

Fri Sep  8 03:26:38 2000  J"orn Rennecke <amylaar@redhat.co.uk>

        * sh.md (cmpeqsi_ior_t, cmpeqsi_and_t): Remove.
        (cmpeqdi_t): Add output pattern.
        (cmpeqdi_t+1): Don't split when not optimizing.
        Restore proper splitting operation.

2000-09-07  Richard Henderson  <rth@cygnus.com>

        * c-lex.c (process_directive): If not HANDLE_GENERIC_PRAGMAS,
        do not call dispatch_pragma.

2000-09-07  Jim Wilson  <wilson@cygnus.com>

        * reload.c (push_reload): Use CLASS_CANNOT_CHANGE_MODE_P in addition
        to CLASS_CANNOT_CHANGE_MODE.
        * config/ia64/ia64.h (CLASS_CANNOT_CHANGE_MODE_P): True only if the
        mode classes are different.

2000-09-07  Zack Weinberg  <zack@wolery.cumb.org>

        * cpplib.h (struct cpp_options): Add user_label_prefix member,
        left out of commit which removed cppulp.c.

2000-09-07  Richard Henderson  <rth@cygnus.com>

        * bb-reorder.c (fixup_reorder_chain): Add jump in new block
        after switch for CASE_DROPS_THROUGH.

2000-09-07  Richard Henderson  <rth@cygnus.com>

        * loop.c (strength_reduce): Call check_ext_dependant_givs.
        Properly extend the biv initial value for the giv.
        (record_biv): Zero ext_dependant.
        (record_giv): New argument ext_val.  Update all callers.
        (general_induction_var): Likewise.
        (consec_sets_giv): Likewise.
        (simplify_giv_expr): Likewise.  Fill in ext_val if we find
        a sign-extend, zero-extend, or truncate.
        (combine_givs_p): Make sure modes are compatible.
        (check_ext_dependant_givs): New.
        (extend_value_for_giv): New.
        * loop.h (struct induction): Add ext_dependant.
        * unroll.c (iteration_info): Extend the biv initial value for the giv.
        (find_splittable_givs): Likewise.
        (final_giv_value): Likewise.

2000-09-07  Zack Weinberg  <zack@wolery.cumb.org>

        * c-pragma.h: Define HANDLE_GENERIC_PRAGMAS if
        REGISTER_TARGET_PRAGMAS is defined.  Duplicate some
        definitions from cpplib.h.
        * cpplib.h: Don't typedef struct cpp_reader if c-pragma.h has
        already done it.
        * tm.texi: Document HANDLE_PRAGMA as no longer supported.  Add
        documentation for REGISTER_TARGET_PRAGMAS.

        * c-lex.c: Include cpplib.h before c-pragma.h.  Define a
        default-pragma callback to implement -Wunknown-pragmas if
        USE_CPPLIB.
        * c-parse.in: Move all includes to top of file.
        * c-pragma.c: Include cpplib.h before c-pragma.h.  Include
        tm_p.h.
        (dispatch_pragma): Put the namespace in the -Wunknown-pragmas
        warning.
        (init_pragma): If REGISTER_TARGET_PRAGMAS is defined, call it.

        * arm.h, arm-protos.h, arm.c,
          c4x.h, c4x-protos.h, c4x.c,
          h8300.h, h8300-protos.h, h8300.c,
          i370.h, i370-protos.h, i370.c,
          i960.h, i960-protos.h, i960.c,
          sh.h, sh-protos.h, sh.c,
          v850.h, v850-protos.h, v850.c: Convert HANDLE_PRAGMA-based
        pragmata scheme to use REGISTER_TARGET_PRAGMAS instead.

        * d30v.h: Don't mention HANDLE_PRAGMA in comment.  Add
        multiple include guard.
        * i370.md (untyped_call): Use GEN_CALL.
        (umodsi3): Remove unused variable.
        * sh/elf.h: Don't undef HANDLE_SYSV_PRAGMA.
        * v850.c (output_move_single, output_move_double): Constify
        return value.
        (print_operand): Constify a char *.
        * v850.h (struct small_memory_info): Constify name member.

2000-09-07  Kazu Hirata  <kazu@hxi.com>

        * config/h8300.h: Fix comment typos.
        * config/h8300/h8300.md: Likewise.
        * config/h8300/lib1funcs.asm: Likewise.

Thu 07-Sep-2000 21:29:00 BST  Neil Booth  <NeilB@earthling.net>

        * Makefile.in: Remove references to cppulp.{c,o}.
        * cppinit.c (initialize_builtins, cpp_start_read,
        cpp_handle_option): Update to use cpp_options structure.
        * cppulp.c: Remove.

2000-09-07  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (time_char_table): Allow %#b and %#h.

2000-09-07 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * reorg.c (find_end_label): If the basic block reorder pass moves the
        return insn to some other place try to locate it again and put our
        end_of_function_label there.
        * reorg.c (relax_delay_slots): Check if find_end_label created a
        new label that invalidates the current optimazation.

2000-09-07  Catherine Moore  <clm@redhat.com>

        * unroll.c (unroll_loop): Check for unconditional jumps
        to loop continuation.  Delete if n_iterations is 1.
        (ujump_to_loop_cont): New routine.

2000-09-07  Bernd Schmidt  <bernds@redhat.co.uk>

        * rtl.c (class_narrowest_mode): Add entries for MODE_VECTOR_INT and
        MODE_VECTOR_FLOAT.
        * reload.c (regno_clobbered_p): Accept new arg, MODE, and use it
        to handle multiword modes correctly.  All callers and the declaration
        changed.

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

        * c-common.h (prep_stmt): Declare.
        (lang_expand_stmt): Likewise.
        * c-decl.c (lang_expand_stmt): Remove.
        * c-semantics.c (lang_expand_stmt): Define.
        (prep_stmt): New function.
        (expand_stmt): Handle common statement types here.

2000-09-07  Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>, Alexandre Oliva  <aoliva@redhat.com>

        * configure.in (sh-*-linux*): Added.
        * configure: Rebuilt.
        * config/sh/t-linux: New file.
        * config/sh/sh.h (USERMODE_BIT): Define.
        (TARGET_USERMODE): Likewise.
        (TARGET_SWITCHES): New switches for the bits above.
        (INITIALIZE_TRAMPOLINE): Call __ic_invalidate in USERMODE.
        * config/sh/linux.h: New file.
        * config/sh/lib1funcs.asm (GLOBAL): Don't prefix symbols with
        underscore on linux.
        (L_sdivsi3, L_udivsi3): Define for linux.
        (L_ic_invalidate): Define.
        * invoke.texi (SH Options): Document -musermode.

2000-09-07  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.h (OVERRIDE_OPTIONS): Don't disable function
        CSE unless generating PIC.

        * config/sh/sh.md (symPLT_label2reg): Force the initialization of
        the PIC register.

2000-09-06  H.J. Lu  (hjl@gnu.org)

        * Makefile.in (clean_s1): Depend on stage_b.
        (clean_s2): Depend on stage_d. Don't remove $(VOL_FILES) in
        stage2. They are used for "make compare".

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

        Move statement-tree facilities from C++ to C front-end.
        * c-common.h (c_tree_index): Add CTI_VOID_ZERO.
        (void_zero_node): New macro.
        (struct stmt_tree_s): New type.
        (stmt_tree): New typedef.
        (struct language_function): New type.
        (last_tree): New macro.
        (last_expr_type): Likewise.
        (walk_tree_fn): New typedef.
        (current_stmt_tree): New function.
        (begin_stmt_tree): Likewise.
        (add_stmt): Likewise.
        (finish_stmt_tree): Likewise.
        (statement_code_p): Likewise.
        (lang_statement_code_p): New variable.
        (walk_stmt_tree): New function.
        (STMT_IS_FULL_EXPR_P): New macro.
        * c-common.c (lang_statement_code_p): New variable.
        (c_common_nodes_and_builtins): Initialize void_zero_node.
        (statement_code_p): New function.
        (walk_stmt_tree): Likewise.
        * c-decl.c (language_function): Rename to ...
        (c_language_function): ... this.  Include language_function.
        (push_c_function_context): Adjust accordingly.
        (pop_c_function_context): Likewise.
        (mark_c_function_context): Likewise.
        (current_stmt_tree): Define.
        * c-semantics.c (begin_stmt_tree): New function.
        (add_stmt): Likewise.
        (prune_unused_decls): Likewise.
        (finish_stmt_tree): Likewise.

2000-09-06 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

        * flow.c (insn_dead_p): Detect dead memory stores with auto increments.

2000-09-06  Kazu Hirata  <kazu@hxi.com>

        * calls.c: Fix formatting.

2000-09-06  Graham Stott  <grahams@cygnus.co.uk>

        * config/i386/i386.h (ADDRESS_COST): Fix typo.

2000-09-06  Zack Weinberg  <zack@wolery.cumb.org>

        Integrated preprocessor.

        * Makefile.in: Remove all references to c-parse.gperf,
        c-gperf.h, and c-parse.h.  Remove -d from yacc command line
        generating c-parse.c.  Update dependencies.
        * c-parse.gperf, c-gperf.h: Delete.

        * c-common.c: Don't define parse_options, cpp_token, yy_cur,
        yy_lim, or yy_get_token.  Don't define get_directive_line if
        USE_CPPLIB.
        * c-common.h: Add multiple include guard.  Define RID values
        for every keyword in C, C++, and Objective C.  Put all the
        modifiers first.
        (struct c_fileinfo, get_fileinfo, dump_time_statistics): New.
        * c-decl.c (c_decode_option): Handle -lang-objc here.
        (print_lang_identifier): Handle C_IS_RESERVED_WORD case.
        (grokdeclarator): Adjust for new RID scheme.
        (extract_interface_info): New stub.
        * c-lang.c: Don't declare yy_cur or parse_options.
        (lang_init_options): Call cpp_init.  Don't call
        cpp_options_init.
        (lang_init): Don't call check_newline if USE_CPPLIB.

        * c-lex.c: Don't include c-parse.h.  Do include timevar.h.
        Elide lots of unnecessary code if USE_CPPLIB.  Delete code
        rendered unnecessary by new architecture.  Move routines not
        shared with C++ to c-parse.in.  Maintain a local idea of the
        line number.    Handle C++ as well as C.
        [USE_CPPLIB]: Declare and register callbacks for #ident and
        for entering/leaving files.
        (init_c_lex, c_lex): Are now the entry points to this file.
        (check_newline): Break out directive handling to
        process_directive.
        (read_ucs, is_extended_char, utf8_extend_token): Moved here
        from C++ front end.
        (readescape, parse_float): Overhaul.
        (lex_number, lex_string, lex_charconst): Break out of c_lex
        (n'ee yylex).
        (get_fileinfo, update_header_times, dump_one_header,
        dump_time_statistics): New and/or moved here from C++.
        Support per-file data needed by C++ and per-header timing
        statistics (C++ only, at the moment).
        * c-lex.h: Update prototypes.  Add multiple include guard.
        * c-tree.h (struct lang_identifier): Add rid_code field.
        (C_IS_RESERVED_WORD, C_RID_CODE): New.

        * c-parse.in: Include c-pragma.h. Remove unnecesary calls to
        reinit_parse_for_function and/or position_after_white_space.
        (save_filename, save_lineno): Look ahead before saving.
        (label -> identifier ':'): Save file and line before shifting ':'.
        (reservedwords): No need to call get_identifier.
        (init_parse, finish_parse, yyerror, yylex, yyprint,
        make_pointer_declarator): Are now here for C/ObjC.
        (rid_to_yy): Conversion table from RID constants to Yacc codes.

        * c-pragma.c: Rewrite parsing logic to fit with cpplib's
        #pragma registry.  Provide dummy implementation of that
        interface if !USE_CPPLIB.
        * c-pragma.h: Update to match.

        * flags.h: Add multiple include guard.
        (flag_detailed_statistics): Moved here from C++.
        * toplev.c: Define flag_detailed_statistics.

        * gcc.c (C specs): Use %(trad_capable_cpp) for -E|-M|-MM case
        #if USE_CPPLIB.
        * timevar.def (TV_CPP, TV_LEX): New.
        * timevar.h: Add multiple include guard.

        * objc/lang-specs.h: Use %(trad_capable_cpp) for -E|-M|-MM case
        #if USE_CPPLIB.
        * objc/objc-act.c: Don't mention yy_cur or parse_options.
        Initialize cpplib properly.  Force lineno to 0 after first
        call to check_newline.  Don't handle -lang-objc here.
        Move forget_protocol_qualifiers and remember_protocol_qualifiers here.

2000-09-06  David Edelsohn  <edelsohn@gnu.org>

        * rs6000.md: Correct function unit definitions for cr_logical and
        mtjmpr.
        (sCOND): Additionally fail for sgt, slt, sge, sle if !TARGET_POWER
        and use portable method for >=0 and floating point >=.  Remove
        associated matchers.

2000-09-06  Mark Mitchell  <mark@codesourcery.com>

        * extend.texi: Mark named return value extension as deprecated.

2000-09-06  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (rs6000_reverse_condition): Return
        the result.

2000-09-06  Gabriel Dos Reis  <gdr@codesourcery.com>

        * toplev.c (display_help): Fix thinko in documentation.

        * diagnostic.h (output_buffer::indent_skip): New fields.
        (output_indentation): New macro.

        * diagnostic.c (output_indent): New function.
        (output_set_prefix, clear_diagnostic_info): Use.
        (output_emit_prefix): Predict future indentation.

2000-09-06  DJ Delorie  <dj@redhat.com>

        * Makefile.in (stage_*): add more dependencies to ensure parallel
        builds build correctly

2000-09-06  Manfred Hollstein  <manfredh@redhat.com>

        * Makefile.in (bootstrap-lean): Depend on bootstrap-lean_g,
        not bootstrap-lean_f.

2000-09-06  Andreas Schwab  <schwab@suse.de>

        * mklibgcc.in: Emit rule for libgcc-stage-start.
        * Makefile.in (stage1-start, stage2-start, stage3-start,
        stage4-start): Don't handle libgcc here, use libgcc.mk instead.

2000-09-06  Bernd Schmidt  <bernds@redhat.co.uk>

        * local-alloc.c (local_alloc): Ignore CLASS_LIKELY_SPILLED.
        (update_equiv_regs): Likewise, except for the mn10200 kludge.
        (combine_regs): Likewise.

        * Makefile.in (cse.o): Depend on $(BASIC_BLOCK_H).
        * cse.c: Include "basic-block.h".
        (struct table_elt): New field REGCOST.
        (CHEAP_REG): Delete macro.
        (COST): Return 0 for REGs.
        (approx_reg_cost_1, approx_reg_cost, preferrable): New functions.
        (notreg_cost): Return 0 for appropriate SUBREGs.
        (COSTS_N_INSNS): Return N * 2.
        (rtx_cost): Return 0 for REGs, and use cost of nested rtx for cheap
        SUBREGs.
        (CHEAPER): Use new function preferrable.
        (insert): Initialize REGCOST member.
        (find_best_addr): Use approx_reg_cost for estimation of register
        usage.
        (cse_insn): Likewise.
        * loop.c (iv_add_mult_cost): New function.
        (add_cost, shift_cost, mult_cost): Delete variables.
        (init_loop): Don't initialize add_cost; reduce copy_cost by half.
        (strength_reduce): Use iv_add_mult_cost instead of fixed add_cost.
        Make code that detects autoinc opportunities slightly less optimistic.
        (simplify_giv_expr): If expression contains other reg that is also a
        giv, only increment benefit if this is the only use of that reg.
        (consec_sets_giv): Take that change into account.
        (combine_givs): Slightly more verbose output.

        * i386.h (RTX_COSTS): For MULT, return true cost of multiplication,
        not the cost of an equivalent shift.
        * sh-protos.h (addsubcosts): Declare.
        * sh.c (addsubcosts): New function.
        * sh.h (CONST_COSTS): If CONST_OK_FOR_I, then return 0.
        (RTX_COSTS): Tweak.  Use addsubcosts.
        (ADDRESS_COST): Return higher cost for reg+reg addressing.

2000-09-06  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.c (validate_condition_mode): New function.
        (branch_comparison_operator): Call validate_condition_mode to
        abort rather than returning 0.
        (branch_positive_comparison_operator): New function.
        (scc_comparison_operator): Call validate_condition_mode to abort
        rather than returning 0.
        (ccr_bit): Call validate_condition_mode.  Update for
        new branch scheme.
        (print_operand): Delete %C modifier.  Update %E case
        to use EQ bit not SO bit.
        (rs6000_reverse_condition): New function.
        (rs6000_generate_compare): New function.
        (rs6000_emit_sCOND): New function.
        (rs6000_emit_cbranch): New function.
        (output_cbranch): The length of a long branch insn is
        now only 8 bytes.  Add validate_condition_mode.  Use
        rs6000_reverse_condition.  Remove cror generation.

        * config/rs6000/rs6000.h: Update comments.
        (PREDICATE_CODES): Add new predicate.  Update codes used
        by branch_comparison_operator and scc_comparison_operator.
        * config/rs6000/rs6000-protos.h: Add prototypes for
        new external functions.
        * config/rs6000/rs6000.md: Add new scheduling parameters
        for cr_logical instructions.  Change length of branch
        instructions.
        (bCOND patterns): Call rs6000_emit_cbranch.
        (sCOND patterns): Call rs6000_emit_sCOND.
        (branch patterns): Change lengths to 4.
        (cr logical patterns): New.

2000-09-06  Richard Henderson  <rth@cygnus.com>

        * config/i386/i386.md (call_pop): Fix test for setting
        current_function_uses_pic_offset_table.
        (call, call_value_pop, call_value): Likewise.

2000-09-06  Zack Weinberg  <zack@wolery.cumb.org>

        * timevar.c (timevar_add): Delete.
        (timevar_get): Also count time since the selected timer was
        last updated.  Do not examine the timevar stack if the
        selected timer is standalone.

2000-09-05  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * gthr-dce.h (__gthread_objc_mutex_deallocate): Free mutex->backend.

2000-09-05  Jason Merrill  <jason@redhat.com>

        * c-decl.c (finish_incomplete_decl): Don't call complete_array_type
        for 'extern' arrays.

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

        * config/ia64/lib1func.asm (__divtf3): Rebundle for Itanium.
        Eliminate final copy from non-trapping case.
        (__divdf3, __divsf3): Likewise.

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

        * config/ia64/ia64.md (mulhi3): Fix typo last change.
        * config/ia64/lib1func.asm (__divdi3, __udivdi3, __umodsi3): Likewise.

2000-09-03  Donn Terry  <donn@interix.com>,  Laurynas Biveinis  <lauras@softhome.net>

        * Makefile.in: Restructure bootstrap stages to allow clean
        restart after failure.

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

        * config/ia64.md (movsi and movdi patterns): Allow moves from
        8-bit constants to AR registers.

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

        * config/ia64/ia64.md (mulhi3): New.

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

        * config/ia64/ia64.h (INIT_TARGET_OPTABS): Remove.
        * config/ia64/lib1funcs.asm (__divdi3): Update from Intel IA-64
        Optimization Guide, minimum latency alternative.
        (__moddi3, __udivdi3, __umoddi3): Likewise.
        (__divsi3, __modsi3, __udivsi3, __umodsi3): Likewise.

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

        * fixinc/fixincl.c (load_file): always read header files
        with sizes that are a multiple of the page size.
        & use libiberty's getpagesize for determining that.

2000-09-05  Alexandre Oliva  <aoliva@redhat.com>

        * gcse.c (hash_string_1): Add prototype.
        * cse.c (canon_hash_string): Likewise.

2000-09-04  Craig Newell  <CraigN@ieee.org>

        * gcc.c: Undefine "__WCHAR_TYPE__" before redefining it.

2000-09-04  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (STAGESTUFF): Remove libgcc.
        (stage1-start, stage2-start, stage3-start): Copy the contents of
        the libgcc directory explicitly.
        (mostlyclean): Clean libgcc.

2000-09-04  Andrew Haley  <aph@redhat.com>

        * dwarf2out.c: (stack_adjust_offset): New prototype.

Wed Jan  1 00:23:59 MET 1997  Jan Hubicka  <jh@suse.cz>

        * combine.c (make_extraction): Fix rtx_cost comparison to
        match the comment.

Wed Jan  1 00:17:32 MET 1997  Jan Hubicka  <jh@suse.cz>

        * i386.md (pushsi2, pushhi2, pophi2, swapsf, swapdf,
        umulsi3_highpart, smulsi3_highpart, testqi_ccno_1, xorqi_ext_1):
        Add '*' to insn pattern name.

2000-09-04  Jakub Jelinek  <jakub@redhat.com>

        * cpplex.c (ON_REST_ARG): Check VAR_ARGS flag of current context,
        use posn - 1 to index into tokens array.
        (maybe_paste_with_next): Adjust caller.

2000-09-03  Geoff Keating  <geoffk@cygnus.com>

        * invoke.texi: Document the -mvxworks option for rs6000 ELF.

        * config/rs6000/rs6000.h: Update various comments about XER_REGNO.
        (REGNO_REG_CLASS): Use symbolic register
        names.

2000-09-03  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (final_prescan_insn): If the form of a jump insn isn't
        recognized, don't try to conditionally execute it.

Sun Sep  3 13:10:56 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.md ("*tablejump_lib"): New pattern.
        (call_value_insn): Right length claculation.
        (call_insn): Likewise.

2000-09-02  Marek Michalkiewicz  <marekm@linux.org.pl>

        * config/avr/avr-protos.h, config/avr/avr.c (unique_section,
        gas_output_limited_string, gas_output_ascii, output_movqi,
        output_movhi, out_movqi_r_mr, out_movqi_mr_r, out_movhi_r_mr,
        out_movhi_mr_r, out_movsi_r_mr, out_movsi_mr_r, output_movsisf,
        out_tstsi, out_tsthi, ret_cond_branch, ashlqi3_out, ashlhi3_out,
        ashlsi3_out, ashrqi3_out, ashrhi3_out, ashrsi3_out, lshrqi3_out,
        lshrhi3_out, lshrsi3_out, output_reload_inhi, output_reload_insisf,
        out_shift_with_cnt, ptrreg_to_str, cond_string, encode_section_info):
        Add "const" as needed to remove warnings.

        * config/avr/avr.c (avr_override_options, avr_init_once,
        function_prologue, function_epilogue, frame_pointer_required_p,
        class_likely_spilled_p, order_regs_for_local_alloc,
        avr_address_cost, avr_ret_register): Use K&R style arguments.
        (initial_elimination_offset, gas_output_limited_string):
        Remove ATTRIBUTE_UNUSED from the used arguments.
        (output_mov*, out_mov*_r_mr, out_mov*_mr_r, output_reload_insisf):
        Use local variables src, dest, base to access operands[].
        Rename reg_dest to reg_src if that's what it is.
        (output_movhi, output_movsisf): Optimize loading 8-bit immediate
        constants to LD_REGS if reg_was_0.
        (output_reload_insisf): Change arg 3 to insn length and set it.
        (out_movhi_r_mr, out_movhi_mr_r): Use in/out for more efficient
        access to 16-bit I/O register pairs.
        (avr_address_cost): Lower cost for the above case.
        (out_tsthi): Use "or" (faster) instead of "sbiw" if the operand
        may be clobbered, also for LD_REGS.
        (adjust_insn_length): Correct insn length for iorhi3 and iorsi3
        with a CONST_INT.

        * config/avr/avr.h (PTRDIFF_TYPE): Make signed.

        * config/avr/avr.md: Change all uses of the TEST_HARD_REG_CLASS
        macro to test_hard_reg_class function.
        (*movsi, *movsf): Change "cc" attribute from "clobber" to "none"
        for loading immediate constants to LD_REGS.
        (andsi3, cmphi, cmpsi): Add return statements to avoid warnings.


Sat Sep  2 13:58:23 2000  Marek Michalkiewicz <marekm@linux.org.pl>

        * config/avr/avr.md ("*negsi2"): substitute %@ to __zero_reg__
        * config/avr/libgcc.S: Lost part of the previous patch.

2000-08-31  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * gthr-dce.h (__gthread_objc_mutex_allocate): Create a pthread_mutex_t
        object before calling pthread_mutex_init.

2000-09-02  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/t-elf, config/sh/crt1.asm, config/sh/crti.asm,
        config/sh/crtn.asm: New files.
        * config/sh/t-sh (EXTRA_MULTILIB_PARTS): Set.
        (crt1.o, crti.o, crtn.o): New targets.
        * configure.in [sh-*-elf*, sh-*-rtemself*] (tmake_file): Added
        sh/t-elf.
        * configure: Rebuilt.
        * config/sh/sh.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP,
        STARTFILE_SPEC, ENDFILE_SPEC, CRT_CALL_STATIC_FUNCTION): Define.
        * config/sh/elf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP):
        Undefine for config/elfos.h to redefine.
        (STARTFILE_SPEC, ENDFILE_SPEC): Redefine after config/elfos.h.

2000-09-02  Alexandre Oliva  <aoliva@redhat.com>, Niibe Yutaka  <gniibe@m17n.org>, Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/sh/sh-protos.h (nonpic_symbol_mentioned_p,
        legitimize_pic_address, output_pic_addr_const): Declare.
        * config/sh/sh.h (CONDITIONAL_REGISTER_USAGE): Fix PIC register.
        (PREFERGOT_BIT, TARGET_PREFERGOT): Likewise.
        (TARGET_SWITCHES): New switch -mprefergot.
        (OVERRIDE_OPTIONS): Set flag_no_function_cse unless -mprefergot.
        (PIC_OFFSET_TABLE_REGNUM): Define.
        (GOT_SYMBOL_TABLE): Likewise.
        (LEGITIMIZE_ADDRESS): Use legitimize_pic_address.
        (ENCODE_SECTION_INFO): Define.
        (FINALIZE_PIC): New macros.
        (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST_P): New macro.
        (ASM_OUTPUT_INT, ASM_OUTPUT_SHORT): Use output_pic_addr_const.
        * config/sh/sh.c (print_operand_address): Use output_pic_addr_const.
        (prepare_move_operands): Call emit_pic_move or
        emit_pic_const_move if appropriate.
        (output_far_jump): For PIC, use braf and output long offset.
        (machine_dependent_reorg):
        (sh_expand_prologue): Save and initialize the PIC register.
        (sh_expand_epilogue): Restore it.
        (initial_elimination_offset): Account for it.
        (nonpic_symbol_mentioned_p): New function.
        (legitimize_pic_address): Likewise.
        (output_pic_addr_const): Likewise.
        * config/sh/sh.md (calli_pcrel, call_valuei_pcrel): New insns.
        (call, call_value): Use them.
        (GOTaddr2picreg, sym_label2reg, symGOT2reg, symGOTOFF2reg,
        symPLT_label2reg): New expands.
        * invoke.texi (SH Options): Document -mprefergot.

2000-09-01  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.h (ASM_OPERANDS_INPUT_CONSTRAINT_EXP): New macro.
        * gcse.c (hash_string_1): New function.
        (hash_expr_1) <ASM_OPERANDS>: Disregard filename and line number.
        (expr_equiv_p) <ASM_OPERANDS>: Likewise.
        * cse.c (rtx_cost): Don't increase the cost of ASM_OPERANDS.
        (canon_hash_string): New function.
        (canon_hash) <ASM_OPERANDS>: Disregard filename and line number.
        (exp_equiv_p) <ASM_OPERANDS>: Likewise.
        (fold_rtx): Use ASM_OPERANDS accessor macros.
        * emit-rtl.c (copy_insn_1): Likewise.
        * integrate.c (copy_rtx_and_substitute): Likewise.
        * stmt.c (expand_asm_operands): Likewise.  Give an
        ASM_OPERANDS rtx the mode of the output reg being set from it.

2000-09-01  Fred Fish  <fnf@be.com>

        * fix-header.c (write_rbrac): Add putc and getc to list of
        functions to protect against prior definition as a macro.

2000-09-01  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.h (enum c_tree_index): Add CTI_C_SIZE_TYPE.
        (c_size_type_node): Define.
        * c-decl.c (init_decl_processing): Initialize c_size_type_node.
        * c-common.c (enum format_lengths, enum format_std_version,
        format_length_info, format_type_detail, BADLEN, NOLENGTHS,
        format_kind_info, printf_length_specs, scanf_length_specs, T89_I,
        T99_I, T89_L, T99_LL, TEX_LL, T89_S, T89_UI, T99_UI, T89_UL,
        T99_ULL, TEX_ULL, T89_US, T89_F, T99_F, T89_D, T99_D, T89_LD,
        T99_LD, T89_C, T99_SC, T99_UC, T89_V, T94_W, TEX_W, T94_WI,
        TEX_WI, T99_ST, T99_SST, T99_PD, T99_UPD, T99_IM, T99_UIM,
        format_types): Define.
        (format_char_info, print_char_table, scan_char_table,
        time_char_table): Rearrange for new organization of information
        about format length modifiers and standard versions.
        (T_ST): Redefine to use c_size_type_node.
        (check_format_info): Obtain information about length modifiers and
        standard versions from tables.  Adjust warning message wordings.
        Use the name from the user's program for `ll' and `hh' length
        modifiers in warning messages.  Use more informative names for
        wanted types where available (for wchar_t, wint_t, size_t, signed
        size_t, ptrdiff_t, unsigned ptrdiff_t, intmax_t and uintmax_t).

2000-09-01  Jim Wilson  <wilson@cygnus.com>

        * calls.c (emit_call_1): Add REG_NORETURN note to call if ECF_NORETURN.
        * combine.c (distribute_notes): Handle REG_NORETURN.
        * rtl.c (reg_note_name): Add REG_NORETURN.
        * rtl.h (enum reg_note): Likewise.

        * config/ia64/ia64-protos.h (emit_safe_across_calls): Renamed from
        ia64_file_start.
        * config/ia64/ia64.c (emit_safe_across_calls): Likewise.
        (rtx_needs_barrier): Handle unspec_volatile 8 and 9.
        (emit_predicate_relation_info): Handle conditional calls with
        REG_NORETURN.
        * config/ia64/ia64.h (ASM_FILE_START): Call emit_safe_across_calls
        instead of ia64_file_start.
        * config/ia64/sysv4.h (ASM_FILE_START): Likewise.
        * config/ia64/ia64.md (safe_across_calls_all,
        save_across_calls_normal): New patterns.

        * loop.c (check_final_value): Check for biv use before checking for
        giv use.  Check for both biv and giv uses.  Always set last_giv_use
        if there is a giv use.

2000-09-01  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (mulsi3): Use grfr_register_operand.
        (madddi3): Likewise.
        (maddsi3): New.

Fri Sep  1 10:59:47 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (clear_storage): Don't use emit_move_insn unless
        either BLKmode or proper size.
        (store_constructor): Don't call clear_storage if REG of wrong size.

        * flow.c (init_propagate_block_info): Don't mark frame dead at end
        of function if returns wiht stack pointer depressed.

2000-09-01  Andrew Haley  <aph@redhat.com>

        * dwarf2out.c (stack_adjust_offset): New function.
        (dwarf2out_stack_adjust): Break out stack adjust logic into
        new stack_adjust_offset function.  Look inside parallels and
        sequences for stack adjustments.

2000-08-31  Jeff Law <law@cygnus.com>

        * arm.md: Use no_new_pseudos to determine when it is safe
        to create new pseudo registers.

        * arm.c (legitimize_pic_address): Use no_new_pseudos to determine
        when we can safely allocate new registers.

2000-08-31  Geoffrey Keating  <geoffk@cygnus.com>

        * stmt.c (expand_asm_operands): Twiddle generating_concat_p
        so that CONCATs are not generated for ASMs.
        * emit-rtl.c (gen_reg_rtx): Don't generate CONCATs when
        not generating_concat_p.
        * function.c (pop_function_context_from): Reset
        generating_concat_p.
        (prepare_function_start): Likewise.
        * rtl.c (generating_concat_p): Define.
        * rtl.h (generating_concat_p): Declare.
        * toplev.c (rest_of_compilation): No CONCATs after RTL generation.

2000-08-22  Philipp Thomas  <pthomas@suse.de>
            Masanobu Yuhara <yuhara@flab.fujitsu.co.jp>

        * gmicro.h (TARGET_SWITCHES): Add descriptions and mark them
        for translation.

2000-08-30  Greg McGary  <greg@mcgary.org>

        * Makefile.in (fixinc.sh): Pass CC, CFLAGS and LDFLAGS to mkfixinc.sh
        * fixinc/Makefile.in (fixincl): Pass $(LDFLAGS) to $(CC).
        * fixinc/mkfixinc.sh: Pass $CC, $CFLAGS and $LDFLAGS to $MAKE.

2000-08-30  Greg McGary  <greg@mcgary.org>

        * tree.h (struct tree_int_cst): Wrap low and high in a sub-struct.
        (TREE_INT_CST_LOW, TREE_INT_CST_HIGH): Access through sub-struct.
        (TREE_INT_CST): New macro.
        * varasm.c (const_hash, compare_constant_1, record_constant_1):
        Use new macro TREE_INT_CST.

Wed 30-Aug-2000 23:18:59 BST  Neil Booth  <NeilB@earthling.net>

        * contrib.texi: Add self.

2000-08-30  Alexandre Oliva  <aoliva@redhat.com>

        * config/sh/sh.md (cmpeqsi_ior_t, cmpeqsi_and_t): New insns.
        (cmpeqdi_t splitter): Use cmpeqsi_and_t instead of emitting jumps
        and labels.

2000-08-30  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * fixinc/gnu-regex.c: Don't define `const'.

Tue Aug 29 22:09:59 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (store_constructor): Allow variable bounds of array type.
        (expand_expr): Don't blow up if type is ERROR_MARK.
        * varasm.c (output_constructor): Don't access lower bound of array
        type unless need it if index is supplied (so it can be a variable
        if no index is supplied).
        Use tree_low_cst; use HOST_WIDE_INT for sizes; change BITPOS to POS.
        Other minor cleanups.

2000-08-29  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * Makefile.in: Revamp handling of cflags to allow different WARN_CFLAGS
        for compilations in stage 1 and subsequent stages, respectively.
        * configure.in (vax): Add compiler-dependent CFLAGS for stage 1.
        * configure: Rebuilt.
        * x-vax, x-vax-gcc: Deleted.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

        * c-common.c (declare_function_name): Use func_id_node,
        function_id_node, and pretty_function_id_node.  Do not make
        __func__ visible at file scope.
        * c-common.h (c_tree_index): Add CTI_FUNCTION_ID,
        CTI_PRETTY_FUNCTION_ID, and CTI_FUNC_ID.
        (function_id_node, pretty_function_id_node, func_id_node): New
        macros.
        * c-decl.c (init_decl_processing): Initialize function_id_node,
        pretty_function_id_node, and func_id_node.
        (c_make_fname_decl): Correct comment.

        * tree.h (struct tree_identifier): Constify pointer member.

        * c-decl.c (pushdecl, implicit_decl_warning): Constify a char *.
        * c-pragma.h (struct weak_syms): Constify name and value members.
        (add_weak): Constify arguments.

        * calls.c (special_function_p): Constify a char *.
        (expand_call): Remove variable which is initialized and then
        never used.
        * dependence.c (struct def_use, struct induction, struct subscript):
        Constify 'variable' member.
        (get_low_bound, have_induction_variable): Constify char * argument.
        (find_induction_variable): Add braces to avoid dangling else.
        (classify_dependence): Constify char * arrays.
        * profile.c (output_func_start_profiler): Constify a char *.
        * stor-layout.c (finalize_record_size): Constify a char *.
        * tree.c (is_attribute_p): Constify a char *.
        * varasm.c (add_weak, remove_from_pending_weak_list): Constify argument.

        * varasm.c (make_function_rtl, make_decl_rtl): Rearrange code
        for comprehensibility.  Do not call get_identifier if we did
        not change the DECL_ASSEMBLER_NAME of the decl.  Use alloca to
        create temporary string constants, not ggc_alloc_string.  No
        need to copy result of ASM_FORMAT_PRIVATE_NAME.  Use const
        char * to hold IDENTIFIER_POINTERs.

2000-08-29  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.md (muldi3): Use grfr_register_operand
        for the inputs.

2000-08-29  Richard Henderson  <rth@cygnus.com>

        * reload.c (push_secondary_reload): Allow class == reload_class
        if we're using a reload_in/out pattern.

        * config/ia64/ia64.md (reload_inti): Use a TImode scratch.  Use
        the half that does not conflict with the reload register.
        (reload_outti): Likewise.

2000-08-29  Kazu Hirata  <kazu@hxi.com>

        * reload.c: Fix formatting.

        * stmt.c: Fix formatting.

        * gcc.c: Fix formatting.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

        * flags.h (time_report, mem_report): New global flags.
        * toplev.c: Define time_report and mem_report.
        (f_options): Add -ftime-report and -fmem-report.
        (compile_file): Turn on time_report if quiet_flag is off.
        Call ggc_print_statistics at very end if mem_report is on.
        * timevar.c (TIMEVAR_ENABLE): Examine time_report, not quiet_flag.

        * ggc-common.c (ggc_print_statistics): Rename to
        ggc_print_common_statistics; all callers changed.  Scale
        quantities above 10K to kilobytes and above 10M to megabytes.
        * ggc-page.c (ggc_page_print_statistics): Rename to
        ggc_print_statistics.  Report memory consumed by internal data
        structures for each allocation bucket.  Scale quantities above
        10K to kilobytes and above 10M to megabytes.
        * ggc-simple.c: Prototype debug_ggc_tree to avoid warning.
        Cast PTR_KEY(p) to unsigned long in fprintf call to avoid warning.
        Define tally_leaves always.
        (ggc_print_statistics): New function.
        * ggc.h: Adjust for renamed functions.

Wed Aug 30 00:11:42 2000  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr.md ("*movsf","*movsi"): Pass NULL to
        output_movsisf instead of which_alternative.

        * config/avr/avr.c (output_reload_inhi): Check for NULL ponter.

Tue Aug 29 22:29:58 2000  Denis Chertykov  <denisc@overta.ru> & Marek Michalkiewicz <marekm@linux.org.pl>

        * config/avr/avr-protos.h: (avr_output_ascii) Removed.
        (avr_progmem_p): New prototype.
        (output_movsisf): Prototype declaration changed.
        (output_movqi): New prototype.
        (output_movhi): New prototype.
        (call_insn_operand): Likewise.
        (final_prescan_insn): Likewise.
        (avr_simplify_comparision_p): Likewise.
        (avr_normalize_condition): Likewise.
        (compare_eq_p): Likewise.
        (out_shift_with_cnt): Likewise.
        (const_int_pow2_p): Likewise.
        (output_reload_inhi): Prototype declaration changed.

        * config/avr/avr.c: (debug_hard_reg_set): Prototype declared.
        (ldi_reg_rtx): New. rtx for r31.
        (avr_init_stack): Initialize as "__stack".
        (function_prologue): Use it.
        Replace all TARGET_ENHANCED with AVR_ENHANCED.
        (avr_mcu_name): Initialize as "avr2".
        (avr_enhanced_p, avr_mega_p): New variables.
        (mcu_types, avr_override_options): Handle all known MCU types.
        Also handle avr1 (only preprocess, assemble and link).
        (print_operand): Using of `%K' in output template removed.
        (out_movqi_r_mr): Optimized.
        (out_movhi_r_mr): Likewise.
        (output_movqi): New function.
        (output_movhi): Likewise.
        (out_movsi_r_mr): Optimized.
        (output_movsisf): Compute insn length for `adjust_insn_length'
        (out_movqi_mr_r): Optimized.
        (out_movhi_mr_r): Optimized.
        (adjust_insn_length): Use output_movsisf, output_movqi,
        output_movhi for insn length adjusting.
        (reg_unused_after): Use dead_or_set_p.
        (preferred_reload_class): Now havn't any restriction.
        (reg_was_0): New function.
        (io_address_p): Likewise.
        (const_int_pow2_p): Likewise.
        (output_reload_inhi): Likewise.
        (output_reload_insisf): Likewise.

        * config/avr/avr.h (MULTILIB_DEFAULTS): Define.
        (LIB_SPEC): Use -lc for all supported devices.
        (LIBGCC_SPEC): Use -lgcc for all supported devices.
        (AVR_MEGA): Define as avr_mega_p.
        (AVR_ENHANCED): New, define as avr_enhanced_p.
        (TARGET_SWITCHES): Remove -menhanced, now handled by -mmcu=...
        (CPP_SPEC, LINK_SPEC): Handle all known MCU types.
        (CRT_BINUTILS_SPECS): Handle all known MCU types.
        Rename gcrt1-*.o to make file names unique on 8.3 filesystems.
        (EXTRA_SPECS): Add CPP_AVR[1-5]_SPEC.
        (ASM_SPEC): Pass -mmcu=... to the assembler.
        Change all -DAVR_* to -D__AVR_*__.
        (INIT_TARGET_OPTABS), config/avr/libgcc.S:
        Rename library functions to start with two underscores.
        (ASM_OUTPUT_COMMON): Outputs `.comm VAR,VAR-SIZE,1' to avoid
        alignment.
        (ASM_WEAKEN_LABEL): Declared for __attribute__((weak)).
        (SUPPORTS_WEAK): Likewise.
        (LDI_REG_REGNO): New. Register r31 will be used as temporary
        register for loading constants to r0-r14.

        * config/avr/avr.md: Replace all TARGET_ENHANCED with
        AVR_ENHANCED.
        (*mov_r_sp): Removed. Handled by output_movhi.
        (*mov_sp_r): Likewise.
        (*mov_sp_r_no_interrupts): Likewise
        (*mov_sp_r_tiny): Likewise.
        (*movqi): Use output_movqi.
        (*reload_inqi): New.
        (*movhi): Use output_movhi.
        (*reload_inhi): New.
        (*negsi2): Optimized.
        (*negsf2): Likewise.
        Added peepholes (define_peephole2) for loading constants to r0-r14
        and for using `cpse' command.

        * config/avr/libgcc.S: Rename library functions to start with two
        underscores.
        Add support for enhanced core.
        (_moqhi3): Fix typo, now _modqi3.
        (__divsi_raw): Use __zero_reg__ as loop counter, smaller by 1 word.
        (__prologue_saves__): Remove test for stack adjust by 0.
        (__tablejump__): New.

        * config/avr/t-avr: Build libgcc2 with -mcall-prologues.
        Add multilib support.

Tue Aug 29 15:17:54 EDT 2000  John Wehle  (john@feith.com)

        * loop.c (prescan_loop): Don't check unknown_address_altered
        when deciding if insert_loop_mem is safe.  Add BLKmode MEMs
        to loop_store_mems as necessary.
        (loop_invariant_p): Don't check unknown_address_altered
        or unknown_constant_address_altered.

2000-08-29  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * vax.md (sltu, sgeu): Delete sltu and sgeu insn patterns.

2000-08-29  Zack Weinberg  <zack@wolery.cumb.org>

        * cpperror.c (print_file_and_line): If line is (unsigned int)-1,
        print just the filename.
        * cpplex.c (_cpp_run_directive): Add additional argument, the
        name to give the synthetic buffer.  This defaults to
        translated "<command line>".
        * cpplib.c (cpp_define, cpp_undef, cpp_assert, cpp_unassert):
        Adjust to match.
        (_cpp_define_builtin): New function.
        * cppinit.c (initialize_builtins): Use _cpp_define_builtin.
        * cpphash.h: Update prototypes.

        * tradcpp.c (main): Process -D and -U simultaneously, in the
        order they appeared on the command line.

2000-08-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-decl.c (define_label): Call warning_with_file_and_line and
        error_with_file_and_line instead of plain warning or error.

        * c-parse.in (label): Use save_filename/save_lineno to ensure
        correct values for calls to define_label.

2000-08-29  Mark Mitchell  <mark@codesourcery.com>

        * calls.c (expand_call): Don't create a VAR_DECL just to throw it
        away.
        * expr.c (expand_expr, case TARGET_EXPR): Don't call
        mark_addressable.
        * tree.h (get_file_function_name): Remove two duplicate
        declarations.

2000-08-28  Kazu Hirata  <kazu@hxi.com>

        * tree.c: Fix formatting.

        * xcoffout.c: Fix formatting.

2000-08-28  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (attr_checksum): Also ignore DW_AT_producer.

2000-08-28  Daniel Berlin  <dberlin@redhat.com>

        * dwarf2out.c (dwarf2out_finish): Don't bother calling
        break_out_includes if it won't do anything.

2000-08-28  Richard Henderson  <rth@cygnus.com>

        * reload.c (push_secondary_reload): Revert 2000-08-16 change.
        (find_reloads): Likewise.
        * config/alpha/alpha.md (reload_inqi): Revert 2000-08-11 change.
        (reload_inhi): Likewise.

2000-08-28  Richard Henderson  <rth@cygnus.com>

        * config/i386/i386.c: Don't error on EXTRA_CONSTRAINT defined.
        (call_insn_operand): Don't expect a surrounding mem.
        (constant_call_address_operand): Likewise.
        * config/i386/i386.h (PREDICATE_CODES): Update.
        * config/i386/i386.md (call patterns): Move the match_operand
        for the call destination inside the mem.

2000-08-28  Richard Henderson  <rth@cygnus.com>

        * local-alloc.c (requires_inout): Don't use reserved range for
        EXTRA_CONSTRAINTS; use anything not matched by REG_CLASS_FROM_LETTER.
        * recog.c (asm_operand_ok): Likewise.
        (preprocess_constraints, constrain_operands): Likewise.
        * regclass.c (record_reg_classes): Likewise.
        * reload.c (find_reloads): Likewise.
        * reload1.c (maybe_fix_stack_asms): Likewise.
        (reload_cse_simplify_operands): Likewise.
        * stmt.c (expand_asm_operands): Likewise.

        * md.texi: Update constraints documentation.
        * tm.texi (EXTRA_CONSTRAINT): Update.

2000-08-28  Daniel Berlin  <dberlin@redhat.com>

        * dwarf2out.c (DIE_LABEL_PREFIX): Remove leading "__".
        (print_die): If we don't know the offset of the
        target die, try the symbol.  Add a trailing newline.
        (reverse_all_dies): New fn.
        (dwarf2out_finish): Call it.
        (break_out_includes): Reorganize for clarity.
        (add_sibling_attributes): Don't call reverse_die_lists.
        (output_comp_unit): Rename from output_comdat_comp_unit.  Use for
        primary CU, too.
        * flags.h: Add flag_eliminate_dwarf2_dups.
        * toplev.c (f_options): Support -feliminate-dwarf2-dups.

2000-08-28  Jason Merrill  <jason@redhat.com>

        * dwarf2.h (DW_TAG_GNU_BINCL, DW_TAG_GNU_EINCL): New tags.
        * dwarf2out.c: #include "md5.h".
        (DIE_LABEL_PREFIX): New macro.
        (dw_val_struct): Add 'external' flag to val_die_ref.
        (add_AT_die_ref, AT_ref): Adjust.
        (AT_ref_external, set_AT_ref_external): New fns.
        (build_abbrev_table): Call set_AT_ref_external.
        (value_format): Call AT_ref_external.
        (die_struct): Add die_symbol field.
        (new_die): Clear it.
        (dwarf_tag_name): Handle BINCL/EINCL.
        (dwarf2out_start_source_file): Add BINCL DIE.
        (dwarf2out_end_source_file): Add EINCL DIE.
        (push_new_compile_unit, pop_compile_unit, clear_die_sizes): New fns.
        (loc_checksum, attr_checksum, die_checksum): New fns.
        (is_type_die, is_comdat_die, is_symbol_die): New fns.
        (compute_section_prefix, assign_symbol_names): New fns.
        (gen_internal_sym, output_die_symbol, output_symbolic_ref): New fns.
        (output_die): Call output_die_symbol and AT_ref_external.
        (output_comdat_comp_unit): New fn, split out from...
        (dwarf2out_finish): ...here.  Also call add_sibling_attributes for
        secondary CUs.
        (output_pubnames, output_aranges): Abort if we see entries from
        secondary CUs.
        * toplev.h: Declare file_name_nondirectory.
        * toplev.c (file_name_nondirectory): New fn, moved from C++ frontend.
        (rest_of_type_compilation): Call dwarf2out_decl if at toplevel.
        (debug_start_source_file): Call dwarf2out_start_source_file
        regardless of debug verbosity.
        (debug_end_source_file): Similarly.
        * tree.h: Declare clean_symbol_name.
        * tree.c (clean_symbol_name): Split out from...
        (get_file_function_name_long): ...here.

        * dwarf2out.c (new_loc_descr): Use calloc.
        (splice_child_die): Remove the die from the right parent.
        (gen_struct_or_union_die): Don't add AT_name to a specification DIE.

Mon Aug 28 19:02:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * toplev.c (decode_g_option): Don't give warning for unknown -g
        option; return 0 instead.
        (main): If -g option is not recognized by front end or
        language-independent code, give warning.

2000-08-28  Greg McGary  <greg@mcgary.org>

        * config/i386/i386-protos.h (ix86_expand_compare): Add extern decl.
        * config/i386/i386.c (ix86_expand_compare): Remove `static'.
        * config/i386/i386.md (trap, conditional_trap): New insn & expand.

2000-08-27  Greg McGary  <greg@mcgary.org>

        * cpplex.c (parse_string): Don't look for backslash
        before first char in `namebuf'.
        * loop.c (strength_reduce): Skip NOTEs.

2000-08-27  Jason Merrill  <jason@redhat.com>

        * c-decl.c (duplicate_decls): Don't set TREE_STATIC or clear
        DECL_EXTERNAL on a local extern.  Don't set DECL_IGNORED_P or
        TREE_ASM_WRITTEN, either.
        (finish_decl): Adjust.

2000-08-28  Philipp Thomas  <pthomas@suse.de>

        * ABOUT-GCC-NLS: Remove gettext patches from Paul Eggert as
        they have been incorporated into the gettext CVS. Change the text to
        reflect the current status of NLS. Add instructions for accessing
        the gettext CVS and add the patch from Martin v. Loewis.

2000-08-27  Geoff Keating  <geoffk@cygnus.com>

        * config/rs6000/rs6000.md (movdi_internal64+5): Make SUBREG-safe
        by using gen_lowpart_common.
        (movdi_internal64+6): Likewise.

2000-08-26  Alexandre Oliva  <aoliva@redhat.com>

        * tm.texi (FINI_SECTION_ASM_OP, CRT_CALL_STATIC_FUNCTION):
        Document.

        * config/mn10300/mn10300.h (DBX_REGISTER_NUMBER): Remap register
        numbers to the ranges used by GDB.

2000-08-25  Richard Henderson  <rth@cygnus.com>

        * config/ia64/ia64.h (struct machine_function): Add n_varargs.
        * config/ia64/ia64.c (ia64_compute_frame_size): Use it.
        (ia64_expand_prologue): Likewise.
        (ia64_setup_incoming_varargs): Set it.  Properly skip the current
        argument for stdargs.

2000-08-25  Jason Merrill  <jason@redhat.com>

        * integrate.c (expand_inline_function): Pull out the original decl.

2000-08-25  Jim Wilson  <wilson@cygnus.com>

        * cse.c (cse_insn): Don't pass label subtraction to force_const_mem.

        * function.c (gen_mem_addressof): Clear MEM_ALIAS_SET if no decl.

2000-08-25  Greg McGary  <greg@mcgary.org>

        * flow.c (dump_edge_info): Use ARRAY_SIZE.
        * config/alpha/alpha.c (alpha_expand_block_move): Likewise.

2000-08-25  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (STRUCT_VALUE): Define to 0, not NULL.

Fri Aug 25 12:52:49 EDT 2000  John Wehle  (john@feith.com)

        * i386.c (ix86_find_base_term): New.
        * i386-protos.h (ix86_find_base_term): Prototype.
        * i386.h (FIND_BASE_TERM): Define.
        * alias.c (find_base_term): Use it.
        * tm.texi (FIND_BASE_TERM): Document it.

        * alias.c (true_dependence, write_dependence_p): Unchanging
        memory can't conflict with non-unchanging memory.

        * alias.c (memrefs_conflict_p): A BLKmode reference
        to a symbol (or CONST_INT address) always conflicts
        with a reference to another symbol.

2000-08-25  Joseph S. Myers  <jsm28@cam.ac.uk>

        * c-common.c (time_char_table): Don't allow width and flags with
        "z" format.

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.