alias.c (rtx_equal_for_memref_p, [...]): Don't assume args are REG.

[gcc.git] / gcc / ChangeLog

Fri Jan 19 13:02:56 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* alias.c (rtx_equal_for_memref_p, case ADDRESSOF): Don't assume
	args are REG.
	* expr.c (store_constructor): Don't look at MEM_ALIAS_SET unless MEM.
	* function.c (assign_parms): Use INTVAL for a CONST_INT.

2001-01-19  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (gen_subprogram_die): Don't reuse the in-class decl
	for the abstract instance of an inline function.

Fri Jan 19 14:31:35 2001  Alexandre Oliva  <aoliva@redhat.com>
			  J"orn Rennecke <amylaar@redhat.com>

	* reload1.c (move2add_note_store): Treat all registers directly or
	indirectly derived from a base register as members of the same set
	of values.
	(reload_cse_move2add): Adjust accordingly.  Take mode and offset
	of base register into account.

Fri Jan 19 09:18:42 2001  J"orn Rennecke <amylaar@redhat.com>

	* alias.c (find_base_value): Recognize TRUNCATE.
	(record_set): In PLUS case, invalidate if other summand is also a
	base value.

Thu Jan 18 06:43:04 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* flow.c (mark_set_1, case PARALLEL): New case; rework to allow
	entry to be EXPR_LIST.
	* rtlanal.c (reg_overlap_mentioned_p): Allow PARALLEL in SET to
	be an EXPR_LIST (but not null, which other code doesn't allow).
	(note_stores): Properly handle PARALLEL in SET.
	Recursively call for top-level PARALLEL.
	* sched-deps.c (sched_analyze_1): Handle EXPR_LIST in PARALLEL in SET.
	* sched-rgn.c (check_live_1, update_live_1): Likewise.

	* config.gcc (rs6000-ibm-aix*, rs6000-bull-bosx): Add rs6000/aix.h.

2001-01-18  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.c (_cpp_handle_directive): Use buffer->was_skipping,
        not pfile->skipping (== 0).

2001-01-17  Nick Clifton  <nickc@redhat.com>

	* config/rs6000/rs6000.c: Add prototypes for {init|free}_
	machine_status.

2001-01-17  Jim Wilson  <wilson@redhat.com>

	* invoke.texi (IA-64 options): Improve.

2001-01-17  Tom Tromey  <tromey@redhat.com>

	* invoke.texi (Optimize Options): Use `{}' to around @samp
	argument.

2001-01-17  Aldy Hernandez  <aldyh@redhat.com>

        * invoke.texi (-fno-guess-branch-probability): New option.

Wed Jan 17 13:26:34 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* combine.c (try_combine): Don't set i3_subst_into_i2 for
	case of making new double-word constant.
	Revert last change: instead just test i3_subst_into_i2.

2001-01-17  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (cmpqi_minus_1): Use {b} for QImode operation.
	Use q constraints instead of r.

Tue Jan 16 22:23:04 2001  Alan Modra (alan@linuxcare.com.au)

	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
	(machine_function): Define.
	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
	* config/pa/pa.c (pa_init_machine_status, pa_mark_machine_status,
	pa_free_machine_status): New functions.
	(override_options): Set {init,mark,free}_machine_status to above.
	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

2001-01-15  DJ Delorie  <dj@redhat.com>

	* Makefile.in (gcov.1): Protect against texi2pod/pod2man failing.
	(cpp.1): Ditto.
	(gcc.1): Ditto.

Tue Jan 16 17:20:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* flow.c (propagate_on_insn): Make trying to delete a prologue
	or epilogue insn an ICE, not a warning.  Allow doing this if
	the current function returns with stack pointer depressed.

	* combine.c (try_combine): If i3_subst_into_i2, properly check for
	I3 having more than one SET.

2001-01-16  Jim Wilson  <wilson@redhat.com>

	* invoke.texi: Document IA-64 options.

	* config/ia64/ia64.c (ia64_print_operand_address): Delete 'B' support.
	(fixup_errata): Delete TARGET_A_STEP use.
	* config/ia64/ia64.h (MASK_A_STEP, TARGET_A_STEP): Delete.
	(TARGET_SWITCHES): Delete -ma-step option.
	* config/ia64/ia64.md (all FP patterns): Delete %B0.
	(movqicc_astep, movqi_internal_astep, movhicc_astep,
	movhi_internal_astep, movsicc_astep, movsi_internal_astep, movdi+1,
	movdi_internal_astep, movsfcc_astep, movsf_internal_astep,
	movdfcc_astep, movdf_internal_astep, movtfcc_astep,
	movtf_internal_astep, cmovdi_internal_astep, cmovsi_internal_astep):
	Delete.
	(movqi_internal, movhi_internal, movsi_internal, movdi_internal,
	movsf_internal, movdf_internal, movtf_internal, cmovdi_internal,
	cmovsi_internal): Delete ! TARGET_A_STEP check.
	
2001-01-16  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* gcc.texi (Bug Lists): Do not mention newsgroups nor the
	possibility to report bugs via postal mail. Change a URL and
	merge in a nearly duplicate statement...
	(Bug Reporting): ...from here.
	(Service): Refer to the Bug Reporting section instead of
	duplicating an URL.
	(Contributing): Remove trivial explanations concerning snapshots.

2001-01-16  Alan Modra <alan@linuxcare.com.au>

        * cppmain.c (general_init): Don't use ANSI prototype.

2001-01-16  Tom Tromey  <tromey@redhat.com>

	* gcc.c (cpp_options): Added `*' to specs for -MF, -MQ, and -MT.

2001-01-16  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.h: Fix comment typo.
	* config/i386/i386.md (shift+compare pattern names): s/cmpno/cmp/
	(ashr+compare patterns): Match CCGOCmode not CCNOmode.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

	* gcc.c:  Revert previous -fsyntax-only-related change; move
	  to cp/g++spec.c.

2001-01-16  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (fcmov_comparison_operator): Only initialize
	inmode after checking GET_CODE (op).

2001-01-16  Richard Henderson  <rth@redhat.com>

	* flow.c (struct propagate_block_info): Add mem_set_list_len.
	(MAX_MEM_SET_LIST_LEN): New.
	(propagate_one_insn): Update mem_set_list_len.
	(invalidate_mems_from_autoinc): Likewise.
	(invalidate_mems_from_set): Likewise.
	(mark_used_regs): Likewise.
	(init_propagate_block_info): Likewise.  Stop collecting memories
	when we reach MAX_MEM_SET_LIST_LEN.
	(mark_set_1): Likewise.

2001-01-16  Richard Henderson  <rth@redhat.com>

	* unroll.c (precondition_loop_p): Fail if no iteration
	variable found.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

	* gcc.c:  When -fsyntax-only is given, do not complain about
	  unused libraries.

2001-01-15  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c (asm_output_function_prefix): Remove.
	(ix86_asm_file_end): New.
	(load_pic_register): Generate pic_label_name into a
	staticly allocated buffer.
	* config/i386/i386-protos.h: Update.
	* config/i386/i386.h (ASM_OUTPUT_FUNCTION_PREFIX): Remove.
	(ASM_FILE_END): New.
	* config/i386/i386afe.h: New file.
	* config.gcc (i?86-*-elf) [tm_file]: Use it.
	(i?86-*-{freebsd,linux*,moss*}): Likewise.
	* config/elfos.h (ASM_FILE_END): Undef before redefinition.
	* config/i386/cygwin.h (ASM_FILE_END): Likewise.
	* config/i386/osfrose.h (ASM_FILE_END): Invoke ix86_asm_file_end.
	* config/i386/sco5.h (ASM_FILE_END): Likewise.
	* config/i386/winnt.c (i386_pe_asm_file_end): Likewise.

2001-01-15  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (install-man): Remove explicit dependency on
	$(srcdir)/gcc.1.

	* configure.in, configure: Revert previous patch requiring perl
	5.6.0.

2001-01-12  Aldy Hernandez  <aldyh@redhat.com>

	* toplev.c (flag_guess_branch_prob): New.
	(f_options): Add guess-branch-probability option.
	(rest_of_decl_compilation): Only estimate branch probability if
	flag set.
	(main): set flag_guess_branch_prob.

	* flags.h (flag_guess_branch_prob): New.

2001-01-15  DJ Delorie  <dj@redhat.com>

	* gcc.texi (Makefile): Add documentation for Makefile targets.

2001-01-15  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.c (arm_finalize_pic): New arg "prologue".
	(is_pic): Delete.
	* config/arm/arm-protos.h (arm_finalize_pic): Update prototype.
	(is_pic): Delete declaration.
	* config/arm/arm.h (FINALIZE_PIC): Update call to arm_finalize_pic.
	(OUTPUT_INT_ADDR_CONST): Remove special handling of PIC address.
	* config/arm/arm.md (builtin_setjmp_receiver): New.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (use_return_insn): Don't try to determine the function type
	until after reload has completed.
	(arm_output_epilogue): Don't adjust the sp value recovered from the
	stack.
	(emit_multi_reg_push): Don't record dwarf information for the pc.
	* arm.md (eh_epilogue): The function type may have changed, so it
	needs to be recalculated.
	* arm/netbsd.h (DWARF2_UNWIND_INFO): Delete.  Can now use dwarf2 
	unwind tables on arm/netbsd.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (cbranchsi4): Correct calculation of branch ranges.
	(negated_cbranchsi4): Likewise.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/semi.h (SUBTARGET_EXTRA_SPECS): Define.
	(SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
	(ASM_SPEC): Call subtarget_extra_asm_spec.  Don't
	pass -mapcs-* options to assembler.
	* config/arm/elf.h (SUBTARGET_EXTRA_SPECS): Define.
	(SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
	(ASM_SPEC): Call subtarget_extra_asm_spec.

2001-01-15  Andreas Jaeger  <aj@suse.de>

	* config/i386/i386.c (ix86_init_builtins): Make i size_t to remove 
	warnings.
	(ix86_expand_builtin): Likewise.

	* gencodes.c (output_predicate_decls): Make i size_t to avoid
	warning about comparison between signed and unsigned.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

	* expr.c (do_jump): Treat VOIDmode CONST_DOUBLEs like CONST_INTs.

2001-01-14  Ralf Baechle <ralf@gnu.org>

        * config/mips/linux.h (SUBTARGET_CPP_SPEC): Default ABI is 32; change
        SUBTARGET_CPP_SPEC apropriatly.

2001-01-12  Mark Mitchell  <mark@codesourcery.com>

	* varasm.c (make_decl_rtl): Fix typo in last change.

2001-01-14  Jeffrey Oldham  <oldham@codesourcery.com>

	* defaults.h (SUPPORTS_INIT_PRIORITY): New macro to indicate the
	linker supports the init_priority C++ attribute.
	* tm.texi (SUPPORTS_INIT_PRIORITY): Documentation for new macro.
	* config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Indicate Irix
	linker does not support init_priority C++ attribute.

Sun Jan 14 22:31:30 2001  J"orn Rennecke <amylaar@redhat.com>

	* Makefile.in (libgcc1-test.o): Depends on stmp-int-hdrs.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-parse.in (finish_parse): Add comment about cpp_destroy.
        * cp/lex.c (finish_parse): Similarly.
        * cppinit.c (cpp_cleanup): Rename cpp_destroy for clarity.
        Return the number of errors encountered.
        * cpplib.h (cpp_cleanup): Rename cpp_destroy, return int.
        * cppmain.c (main): Don't call cpp_destroy.

2001-01-14  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Require at least perl 5.6.0 to regenerate
	manpages.
	* configure: Regenerate.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* genrecog.c (DT_veclen_ge): New.
	(add_to_sequence) [MATCH_PARALLEL]: Generate one.
	(maybe_both_true_2): Simplify DT_veclen vs DT_veclen_ge.
	(nodes_identical_1): Handle DT_veclen_ge.
	(write_cond, debug_decision_2): Likewise.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (ldmsi_postinc, ldmsi, stmsi_postinc, smsi): Delete.  Replace
	with ...
	(ldmsi_postinc[432], ldmsi[432], stmsi_postinc[432], stmsi[432]): New.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (do_preprocessing): New function; most of the old
        main.
        (main): Call it to do most of the work.
        (cb): Move from global scope to set_callbacks ().
        (setup_callbacks): Get the callback pointer.
        (general_init, printer_init): Clean up code and comments.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/semi.h (ASM_SPEC): Pass -k to the assembler when
	compiling PIC.

2001-01-14  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Update comments.

Sun Jan 14 06:20:49 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* ggc-page.c (alloc_annon): Call perror and correctly call exit.
	(alloc_page, ggc_alloc): Add casts to remove warnings.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

	* combine.c (simplify_comparison): Don't change `code' when
	can't reverse comparison.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* rtlanal.c (computed_jump_p_1): Rename from jmp_uses_reg_or_mem;
	update all call sites.  Return true for all non-label constants.

Sun Jan 14 10:09:48 MET 2001  Jan hubicka  <jh@suse.cz>

	* i386.c (ix86_expand_compare): Add bypass_test and second_test
	parameters.
	(ix86_expand_branch): Update.
	(ix86_expand_setcc): Update to handle multiple test conditions.
	(expand_int_movcc): Likewise.
	(expand_fp_movcc): Likewise.
	* i386-protos.h (ix86_expand_compare): New.
	* i386.md (andqi_?_slp, orqi_?_slp): New.
	(conditional trap expander): Update call to ix86_expand_compare.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* config/vax/vax.md: Use nonimmediate_operand instead of
	general_operand in destinations.

	* config/vax/vax.md (indirect_jump): Use register_operand.

	* config/vax/vax.h (RETURN_POPS_ARGS): Max at 255 arguments.
	* config/vax/vax.md (call_pop): Turn into an expander.
	(call_value_pop): Likewise.
	(call, call_value): New.

2001-01-14  Andreas Jaeger  <aj@suse.de>

	* config/i386/i386.c (ix86_split_fp_branch): Remove unused
	variables.
	(ix86_fp_compare_mode): Add unused attribute.
	(ix86_expand_fp_movcc): Remove unused variable.
	(ix86_expand_builtin): Make fcode unsigned.

	* expr.c (MOVE_BY_PIECES_P): Cast MOVE_RATIO to unsigned.
	(expand_expr): Add cast to avoid signed warning.
	(store_field): Likewise.
	(store_constructor_field): Likewise.
	(store_constructor): Likewise.
	(store_expr): Likewise.
	(clear_storage): Likewise.
	(emit_group_store): Likewise.
	(emit_group_load): Likewise.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c: Move format checking code to ...
	* c-format.c: ... here.  New file.  Reorder some functions and
	declarations.
	(decl_handle_format_attribute, decl_handle_format_arg_attribute):
	New functions.
	* c-common.h (decl_handle_format_attribute,
	decl_handle_format_arg_attribute): Declare.
	* Makefile.in (C_AND_OBJC_OBJS): Add c-format.o.
	(c-common.o): Adjust dependencies.
	(c-format.o): New list of dependencies.

2001-01-13  Jakub Jelinek  <jakub@redhat.com>

	* unroll.c (loop_iterations): If we cannot prove iteration variable
	is set once in each iteration, punt.

Sun Jan 14 00:23:15 2001  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.md ("strlenhi"): Remove clobber of input address.
	(*strlenhi): Remove clobber (which was buggy) of output address.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (generated-manpages): Add gcc.1
	($(srcdir)/gcc.1): New target.
	(maintainer-clean): Delete $(srcdir)/gcc.1.
	* gcc.texi: Add macros @gccoptlist and @gol.
	* invoke.texi: Include option summary in manpage.  Mark up option
	summary with @gccoptlist and @gol.  Use @r in one place where
	appropriate.
	* texinfo.tex: Update to version 2000-12-11.07 from ftp.gnu.org.
	* gcc.1: Generate from invoke.texi.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* ggc-page.c (USING_MALLOC_PAGE_GROUPS): New; set if not using mmap.
	(struct page_entry): Add group member.
	(struct page_group): New.
	(struct globals): Add page_groups member.
	(alloc_anon): Only define for using mmap; remove valloc call.
	(page_group_index): New.
	(set_page_group_in_use): New.
	(clear_page_group_in_use): New.
	(alloc_page): Implement USING_MALLOC_PAGE_GROUPS.
	(free_page, release_pages): Likewise.
	* configure.in (with-gc): Default to ggc-page always.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

	* reload1.c (replace_pseudos_in_call_usage): Use
	reg_equiv_constant and reg_equiv_address, and don't try
	regno_reg_rtx first.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* ggc-page.c (alloc_page): Round up allocation size to one page.
	Set e->order on extra pages.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* genrecog.c (nodes_identical): Expand commentary.
	(write_switch): Watch out for identical nodes.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppfiles.c (_cpp_fake_include): New function.
        * cpphash.h (_cpp_fake_include): New.
        * cpplib.c (do_line): Call _cpp_fake_include when entering
        header files in preprocessed input.
        * cppmain.c (cb_pragma_implementation): Remove handling.
	(setup_callbacks): Don't register pragmas.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* extend.texi: Udate for CPP.

2001-01-13  Andreas Jaeger  <aj@suse.de>

	* reload1.c: Add prototype for replace_pseudos_in_call_usage.

	* regmove.c: Add prototype for replace_in_call_usage.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cpplib.h (cpp_pool, mi_state, mi_ind, struct cpp_macro,
        struct cpp_chunk, struct htab, struct toklist,
        struct cpp_context, CPP_STACK_MAX, struct lexer_state,
        struct spec_nodes, struct cpp_reader, CPP_OPTION, CPP_BUFFER,
        CPP_BUF_LINE, CPP_BUF_COL, CPP_BUF_COLUMN, U, ustrcmp, ustrncmp,
        ustrlen, uxstrdup, ustrchr, ufputs): Move to cpphash.h.
        (struct macro_args): Delete.
        * cpphash.h: See above.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppmain.c (struct printer): Remove no_line_dirs.
        (options, cb): New.
        (main, setup_callbacks, scan_buffer, printer_init, cb_define)
        : Use options rather than CPP_OPTION.
        (setup_callbacks): Use cb rather than pfile->cb.
        (main): No need to check for a buffer.  Use cpp_errors.
        (printer_init): Don't set no_line_dirs.
        (maybe_print_line): Use options not no_line_dirs.
        (cb_file_change): Don't call print_line if -P.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * c-lex.c (init_c_lex): Use cpp_get_callbacks to set
        callbacks.
        * c-parse.in (finish_parse): Use cpp_errors.
        (__yylex): Use return value of cpp_pop_buffer.
        * cp/lex.c (finish_parse): Use cpp_errors.
        * cp/spew.c (read_token): Use return value of cpp_pop_buffer.

Sat Jan 13 16:57:40 2001  Denis Chertykov  <denisc@overta.ru>

	* README.AVR: URLs corrected.

Sat Jan 13 07:30:02 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* c-decl.c (start_function): Don't warn if old prototype is builtin
	that's not in C's namespace.
	* libgcc2.c (_varargs): Update definition of __builtin_saveregs.
	(_bb): Add prototype for ctime.
	* config/alpha/osf.h (TRANSFER_FROM_TRAMPOLINE): Add missing protos.

Sat Jan 13 09:53:32 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_fp_comparison_arithmetics_cost,
	ix86_fp_comparison_fcomi_cost, ix86_fp_comparison_sahf_cost,
	ix86_fp_comparison_cost): New functions.
	(ix86_expand_fp_compare): Use the costs to choose best bethod; add
	two new parameters SECOND_TEST and BYPASS_TEST; allow generating
	two-branch sequences; make static.
	(ix86_use_fcomi_compare): Do decision according to the costs.
	(split_fp_branch): New.
	* i386.md (compare-and-branch patterns): Use split_fp_branch.
	* i386-protos.h (ix86_expand_fp_compare): Remove
	(ix86_split_fp_branch): Declare.

	* i386.h (PREDICATE_CODES): Update codes from fcmov_comparison_operand
	and ix86_comparison_operator.

	* i386.c (ix86_prepare_fp_compare_args): Try to rearange the comparison
	to make it cheaper.

	* i386.c (put_condition_code): Output properly the unordered/ordered
	compares in fp case.
	(ix86_expand_fp_movcc): Use ix86_expand_compare infrastructure.

	* tm.texi (REVERSE_CONDITION): Document.
	* i386.c (ix86_fp_compare_mode): Simplify; return always CCFPmode
	in -ffast-math mode.
	* i386.h (REVERSE_CONDITION, REVERSIBLE_CC_MODE): New macro.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (sh_expand_epilogue): Use PR explicitly.

	* config/sh/sh.c (sh_expand_prologue): Let the second toggle_sz be
	optimized away.

	* config/sh/sh.c (mova_p): Fix test for mova_const.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * fix-header.c (read_scan_file): Use cpp_get_callbacks and
        cpp_get_options rather than dereferencing pfile and using
        CPP_OPTION.
        * scan-decls.c (scan_decls): Use return value of
        cpp_pop_buffer rather than CPP_BUFFER.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

        * cppinit.c (cpp_handle_option): help_only is now part of the
        cpp_options structure.
        * cpplib.c (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New functions.
        * cpplib.h (cpp_callbacks): Break out as a named structure.
        (cpp_options): Move help_only here from cpp_reader.
        (CPP_FATAL_ERRORS): Update to use cpp_errors.
        (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New prototypes.
        * cppmain.c (main): Update for help_only.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (info, maintainer-clean, install-info, uninstall):
	Also build and remove and install and uninstall c-tree.info and
	cppinternals.info.
	($(srcdir)/gcc.info): Add dependency on contrib.texi.
	($(srcdir)/cppinternals.info): New target.
	* c-tree.texi: Change file name used when makeinfo used without -o
	from ir.info to c-tree.info.  Add info directory entry.
	* cppinternals.texi: Add info directory entry.
	* .cvsignore: Update.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

	* c-typeck.c (store_init_value): Don't require constant initializer
	elements with -pedantic -std=c99.
	(digest_init): Change error about non-constant initializer elements
	into pedwarn.
	(constructor_range_end): Remove.
	(constructor_incremental, designator_depth,
	designator_errorneous): New variables.
	(struct constructor_stack): Remove range_end, add incremental.
	(struct constructor_range_stack, constructor_range_stack): New.
	(struct initializer_stack): Add constructor_range_stack.
	(finish_init): Set it.
	(start_init): Likewise.  require_constant_elements for non-static
	trees only if not flag_isoc99.
	(really_start_incremental_init): Remove constructor_range_end, add
	constructor_incremental.
	(pop_init_level): Likewise.
	(push_init_level): Likewise.  If implicit and the subobject had some
	value set already, preinitialize the level with it.
	Warn about missing braces only if not pushing due to designators.
	(set_designator, push_range_stack): New functions.
	(set_init_label): Use them.
	(set_init_index): Likewise.  Remove constructor_range_end.
	Error if designator index is outside of array bounds.
	(add_pending_init): Compare values of purpose index trees, not the
	trees themselves.  Allow overwriting of already initialized element.
	Issue a warning if it had side-effects.
	(set_nonincremental_init, set_nonincremental_init_from_string): New
	functions.
	(pending_init_member): Rename to...
	(find_init_member): ...this function.  Call set_nonincremental_init
	if necessary.  Compare values of purpose index trees, not the trees
	themselves.  Return the actual value, not just non-zero if something
	is found.
	(output_init_element): Remove checks for duplicates.
	If field has zero size, only check the initializer for correctness.
	Call set_nonincremental_init if necessary.  Push RECORD/ARRAY into AVL
	if constructor_incremental is zero.  Change error about initializers
	not computable at load time into pedwarn.
	(output_pending_init_elements): Compare bit positions, not
	FIELD_DECLs to take into account zero-sized fields.
	(process_init_element): Use constructor_range_stack to fill all
	ranges in the designator lists from current level up.
	* extend.texi: Update documentation for labeled elements.

2001-01-12  Alexandre Oliva  <aoliva@redhat.com>

	* calls.c (emit_library_call_value_1): Add USEs and CLOBBERs
	to function usage for arguments passed by reference.  Optimize
	callee-copied arguments.
	* regmove.c (replace_in_call_usage): New function.
	(fixup_match_1): Call it.
	* cse.c (cse_insn): Canonicalize registers in function usage.
	* reload1.c (replace_pseudos_in_call_usage): New function.
	(reload): Call it.

	* Makefile.in: Reverted yesterday's wrong patch.  Installed the
	right version.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

	* config/alpha/alpha.c (alpha_expand_block_move): GET_MODE of tmp,
	not XEXP (tmp, 0).

2001-01-12  DJ Delorie  <dj@redhat.com>

	* Makefile.in (bootstrap): rename stages to be mnemonic.  Add
	restageN, unstageN, bubblestrap, quickstrap, and cleanstrap
	targets.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* cpp.texi, extend.texi, gcc.texi, install.texi, invoke.texi,
	tm.texi: Consistently refer to ISO C instead of ANSI C.  Refer to
	-std options alongside references to -ansi.  Update some
	documentation for C99.
	* cpp.1: Regenerate.

2001-01-12  Andreas Jaeger  <aj@suse.de>

	* haifa-sched.c (restore_line_notes): Remove argument block B
	since it's unused.
	* sched-ebb.c (schedule_ebb): Change caller.
	* sched-rgn.c (schedule_region): Likewise.
	* sched-int.h (restore_line_notes): Adjust prototype.

	* loop.h: Remove wrong declaration of doloop_condition_get.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

	* extend.texi:  Move C++-extension-related node from the C section
	  into the C++ section.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* extend.texi: Refer to an array of pointers to functions instead
	of one of functions.

Fri Jan 12 12:08:12 MET 2001  Andreas Jaeger  <aj@suse.de>
			      Jan Hubicka  <jh@suse.cz>

	* combine.c (reversed_comparison): Fix typo in last patch.
	Check X for NULL.
	(combine_reversed_comparison_code): Make static to follow
	prototype declaration.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

	* install.texi:  Remove misplaced duplicate entry.

2001-01-11  Ulrich Drepper  <drepper@redhat.com>

	* config/float-i386.h: Define FLT_EVAL_METHOD and DECIMAL_DIG for C99.

Thu Jan 11 17:06:30 EST 2001  John Wehle  (john@feith.com)

	* final.c: (leaf_function_p): Fix typo.

2001-01-11  Zack Weinberg  <zack@wolery.stanford.edu>

	* aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Completely rewritten.
	Now defines HAVE_MMAP_DEV_ZERO and/or HAVE_MMAP_ANON depending
	which you have.
	(AC_FUNC_MMAP_FILE): Don't AC_REQUIRE AC_FUNC_MMAP_ANYWHERE.
	* configure.in: Set GGC to ggc-page if any of mmap_dev_zero,
	mmap_anon, and valloc is available.
	* ggc-page.c: Restructure ifdef logic to match new autoconf
	spec.  Don't throw away the test page in init_ggc.

	* configure, config.in: Regenerate.

2001-01-12  Michael Hayes  <mhayes@redhat.com>

	* loop.h (total_biv_increment): Constify iv_class pointer.
	(struct induction): Replace `mem_mode' with `mem' rtx.
	* unroll.c (total_biv_increment): Constify iv_class pointer.
	* loop.c (loop_giv_reduce_benefit): Derive mem mode from mem rtx.
	(find_mem_givs, combine_givs_p): Likewise.
	(debug_ivs, debug_iv_class, loop_ivs_dump, loop_iv_class_dump): New.

2001-01-10  Thomas Pfaff <tpfaff@gmx.net>

	* gthr-win32.h (__gthread_objc_thread_get_data): Save and restore Win32
	LastError.
	(__gthread_getspecific): Ditto.

Fri Jan 12 00:04:00 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_comparison_operator, fcmov_comparison_operator,
	put_condition_code): Convert fp comparison codes to integer
	before handling.
	(ix86_expand_fp_compare): Postnote the fp comparison code converison
	to final.

	* i386.c (unsigned_comparison, no_comparison_operator): Kill.
	* i386-protos.h (no_comparison_operator): Kill.

	* i386.c (ix86_expand_fp_compare): Fix ordered/unordered confussion.

	* combine.c (REVERSIBLE_CC_MODE): Remove.
	(reversible_comparison_p): Remove.
	(combine_reversed_comparison_code): New.
	(reversed_comparison): New.
	(combine_simplify_rtx): Use
	combine_reversed_comparison_code/reversed_comparison instead
	of reversible_comparison_p.
	(simplify_if_then_else): Likewise.
	(simplify_set): Likewise.
	(simplify_logical): Likewise.
	(if_then_else_cond): Likewise.
	(known_cond): Likewise.
	(simplify_comparison): Likewise.

2001-01-11  Alan Lehotsky  <lehotsky@tiac.net>

	* builtins.c (std_expand_builtin_va_start): Handle varargs when
	sizeof (int) is larger than sizeof(__word__).

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (do_includes): Fix typo.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md (cmphi_1): Make sure reloading
	in S_REGS does not occur because not all sources are possible
	when a S_REGS is a destination (sometimes needs a clobber).
	(movqi_const0, zero_extendhisi2, zero_extendqisi2): Likewise.
	(zero_extendhidi2, extendqisi2, extendqihi2, extendhisi2): Likewise.
	(anddi3, iordi3, xordi3, negqi2, one_cmplhi2, one_cmplqi2: Likewise.
	(ashldi3_const32, ashldi3_const1, ashlsi3_const16): Likewise.
	(ashlsi3_const1, ashlhi3_2, ashlqi3_const1, ashrhi3): Likewise.
	(ashrqi3_const1, lshrdi3_const32, lshrdi3_const63): Likewise.
	(lshrdi_const1, lshrsi3_const16): Likewise.
	(*addhi3, lshrsi3_const1, lshrqi3_const1): Likewise.
	(*movhi_68hc12, *movqi_68hc12): Likewise.
	(movstrictqi): Make sure reloading in D_REGS as a destination
	does not happen.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppspec.c (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (cpp_start_read): If -fpreprocessed, ignore
	-D, -U and -A, and don't initialize the builtins.
	(do_includes): Error if -include or -imacros with -fpreprocessed.
	* cppmain.c (cb_define, cb_undef): Unconditionally process
	the callback.
	* tradcpp.c (main): Fix typo.

2000-01-11  Mark Elbrecht  <snowball3@bigfoot.com>

	 * cppfiles.c (cpp_included, find_include_file, _cpp_execute_include)
	   (read_name_map): Use IS_ABSOLUTE_PATH.
	 * tradcpp.c (get_filename): Likewise.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md (*adcq, *subcq): Fix operand numbers.
	(*ashlsi3_const16_zexthi, *ashlsi3_const1): Likewise.
	(*lshrsi3_const, *lshrsi3_const1, *lshrsi3_const16): Likewise.
	(*ashrsi3, *ashrsi3_const, *ashlsi3, *ashlsi3_const): Likewise.
	(*ashlsi3_const1, *lshrsi3, *ashlsi3_const16): Likewise.
	(cmphi_z_used): Don't use '@' for the output.
	(tstqi_z_used): Likewise.
	(cmpqi_z_used): Likewise.
	(one_cmplsi2): Likewise.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (barrier_align): Recognize branch around far
	branch and redundant insn.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* invoke.texi: Restore documentation of the drivers' switches -MD
	and -MMD.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (LABEL_ALIGN): Use UNSPECV_ALIGN instead of 1.

	* Makefile.in (check-gcc//%, check-g++//%, check-g77//%,
	check-objc//%): Support parallel testing of multilibs.
	(TESTSUITEDIR): Set to testsuite by default, but override for
	parallel testing.
	(check-gcc, check-g++, check-g77, check-objc): Enter
	$(TESTSUITEDIR).

2001-01-11  Bernd Schmidt  <bernds@redhat.com>

	* alias.c (throughout): Use REGNO, rather than ORIGINAL_REGNO.
	* sched-deps.c (deps_may_trap_p): Likewise.
	* basic-block.h: Remove a comment.
	* flow.c (PROP_POSTRELOAD): Remove.
	(update_life_info): Don't add it to prop_flags.
	(mark_set_1): Lose the code that was enabled by it.

2001-01-11  Michael Hayes  <mhayes@redhat.com>

	* flow.c (flow_call_edges_add): New.
	* basic_block.h (flow_call_edges_add): New.

2001-01-11  J"orn Rennecke <amylaar@redhat.com>

	* reload1.c (move2add_note_store): Update reg_set_luid even if
	base reg remains the same.

2001-01-10  Nick Clifton  <nickc@redhat.com>

	* config/d30v/d30v.c (d30v_init_machine_status): Initialise
	machine_function structure to zero.
	Add prototypes for machine_status functions.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

	* c-common.h (CTI_VOID_LIST): Remove.
	(void_list_node): Likewise.
	* tree.h (TI_VOID_LIST_NODE): New enumeral.
	(void_list_node): New macro.
	* config/arm/arm.c (arm_init_builtins): Use void_list_node.
	* config/i386/i386.c (ix86_init_builtins): Likewise.
	* config/ia64a/ia64.c (ia64_init_builtins): Likewise.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* Makefile.in (tradcpp0): Depend on mkdeps.h.  Link mkdeps.o
	* cppinit.c (cpp_start_read): Update comment, remove unneeded
	if statement.
	* tradcpp.c: Include mkdeps.h.
	(deps, print_deps_phony_targets, deps_append, output_deps,
	init_dependency_output, output_deps): New.
	(deps_buffer, deps_allocated_size, deps_size, deps_column,
	deps_output): Delete.
	(print_deps_missing_files): Rename deps_missing_files.
	(inhibit_output): Make global.
	(main): Delete inhibit_output, deps_stream, deps_target.
	Use mkdeps functionality in the same way as cpplib.  Remove
	-g3 handling.  Handle -MF, -MP, -MQ, -MT.  Update handling of
	-M and -MM.  Remove old handling of deps via deps_out, and
	old reading of environment variables.
	(get_filename): Update to use deps_add_dep.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

	* output.h (make_function_rtl): Remove prototype.
	(make_decl_rtl): Likewise.
	* varasm.c (make_function_rtl): Remove.
	(make_decl_rtl): Determine top-levelness from DECL_CONTEXT, rather
	than from a third parameter.
	* tree.h (make_decl_rtl): Remove last parameter.
	* c-decl.c (builtin_function): Remove last argument in call to
	make_decl_rtl; use make_function_rtl instead of make_decl_rtl.
	(start_function): Likewise.
	* except.c (call_get_eh_context): Likewise.
	* expr.c (emit_block_move): Likewise.
	(clear_storage): Likewise.
	* profile.c (output_func_start_profiler): Likewise.
	* toplev.c (rest_of_decl_compilation): Likewise.
	* objc/objc-act.c (create_builtin_decl): Likewise.
	(synth_module_prologue): Likewise.
	(generate_static_reference): Likewise.
	(build_selector_reference_decl): Likewise.
	(build_class_reference_decl): Likewise.
	(build_objc_string_decl): Likewise.
	(build_protocol_reference): Likewise.

2001-01-10  Richard Henderson  <rth@redhat.com>

	* hwint.h: Revert yesterday's change.

2001-01-10  Nick Clifton  <nickc@redhat.com>

	* function.h (save_machine_status): Delete.
	(restore_machine_status): Delete.
	Amend comment describing {init|mark|free}_machine_status.

	* function.c (save_machine_status): Delete.
	(restore_machine_status): Delete.
	Amend comment describing {init|mark|free}_machine_status.
	(push_function_context_to): Remove invocation of
	save_machine_status.
	(pop_function_context_from): Remove invocation of
	restore_machine_status.

	* emit-rtl.c (init_emit_once): Amend comment describing
	{init|mark|free}_machine_status.

	* tm.texi (Per-Function Data): New node.  Describe the
	INIT_EXPANDERS macro and the {init|mark|free}_machine_status
	function pointers.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (OPT_g): Remove.
	(cpp_handle_option): Update for removed -g3.
	(print_help): Update.
	* cpplib.h (struct cpp_options): Remove debug_output.
	* cppmain.c (setup_callbacks, cb_define): Update.
	* gcc.c (cpp_options): Translate -g3 to -dD.

2001-01-10  Aldy Hernandez  <aldyh@redhat.com>

	* config/i960/i960.md: Change modifier to + on the zero_extract
	pattern after the (rotate -2 reg) canonicalization pattern.

2001-01-10  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (alpha_free_machine_status): New.
	(override_options): Install it.
	(alpha_mark_machine_status): Verify machine non-null.
	* config/i386/i386.c (ix86_free_machine_status): New.
	(override_options): Install it.
	(ix86_init_machine_status): Use xcalloc.
	(ix86_mark_machine_status): Verify machine non-null.
	* config/ia64/ia64.c (ia64_free_machine_status): New.
	(ia64_override_options): Install it.
	(ia64_mark_machine_status): Verify machine non-null.

Wed Jan 10 11:34:39 2001  Jeffrey A Law  (law@cygnus.com)

	* function.c (instantiate_virtual_regs): Instantiate virtual
	registers found in CALL_INSN_FUNCTION_USAGE.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* i386.h (CPP_CPU_SPEC): Allow for -std=c* and -std=i* as
	equivalent to -ansi in disabling -Di386.

Wed Jan 10 16:38:31 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_fp_compare_code_to_integer, ix86_fp_comparison_codes):
	new functions.
	(ix86_expand_fp_compare): Make trivial use of new infrastructure.

2001-01-10  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_init_builtins): Temporarily disable xscale builtins.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* invoke.texi: Document that -fcond-mismatch isn't supported for
	C++.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* gcc.texi: Define macro gcctabopt.
	* invoke.texi: Add manpage sections BUGS and AUTHOR.  Use
	@command, @env and @option in some places where appropriate.  Use
	@gcctabopt where appropriate.  Put URLs and email addresses inside
	@w.

2001-01-10  Nathan Sidwell  <nathan@codesourcery.com>

	* gcc.c (cpp_options): Set MD file name from output
	filename, if specified.
	(suffix_subst): New static variable.
	(do_spec): Clear it.
	(do_spec_1, case '.'): Handle new `%.suffix' spec.
	Clear it.
	(give_switch): Handle suffix_subst.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

	* invoke.texi:  Fix another typo.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

	* invoke.texi:  Fix typo.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (lang_hooks): Update.
	(lang_decode_option): Remove.
	(lang_init_options): Rename c_init_options.
	* toplev.c (main): Use lang_hooks for lang_init_options
	and lang_decode_option.
	* toplev.h (lang_hooks): Add 2 new hooks.
	* tree.h: Remove lang_init_options and lang_decode_option.
	* cp/cp-tree.h (lang_decode_option): Rename cxx_decode_option.
	* cp/decl2.c: Similarly.
	* cp/lex.c (lang_init_options): Rename cxx_init_options.
	(lang_hooks): Update.
	* f/com.c (f_init, f_finish): Rename ffe_init, ffe_finish
	for consistency.
	(lang_init_options): Rename ffe_init_options.
	(lang_hooks): Update.
	(lang_decode_option): Remove.
	* java/lang.c (lang_init_options): Rename java_init_options.
	(lang_decode_option): Rename java_decode_option.
	(lang_hooks): Update.
	* objc/objc-act.c (lang_init_options): Rename objc_init_options.
	(lang_decode_option): Rename objc_decode_option.
	(lang_hooks): Update.

2001-01-09  Nick Clifton  <nickc@redhat.com>

	* config/d30v/d30v.c (d30v_eh_epilogue_sp_ofs): Delete.
	(d30v_return_addr_rtx): Delete.
	(d30v_expand_epilogue): Use eh_epilogue_sp_ofs field in the
	cfun->machine structure.
	(struct machine_function): Move to d30v.h
	(d30v_save_machine_status): Delete.
	(d30v_restore_machine_status): Delete.
	(d30v_init_machine_status): New Function.
	(d30v_mark_machine_status): New Function.
	(d30v_free_machine_status): New Function.
	(d30v_init_expanders): Use new functions.
	(d30v_return_addr): Use ra_rtx field in cfun->machine.
	(d30v_add_gc_roots): Remove d30v_eh_epilogue_sp_ofs and
	d30v_return_addr_rtx.

	* config/d30v/d30v.h (struct_machine): Move here.
	Add eh_epilogue_sp_ofs field.

	*config/d30v/d30v.md (epilogue): Initialise eh_epilogue_sp_ofs
	field in cfun->machine structure.

Tue Jan  9 21:34:57 2001  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa32-regs.h (CONDITIONAL_REGISTER_USAGE): When generating pic code,
	PIC_OFFSET_TABLE_REGNUM_SAVED is a call_used register.
	* pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Tue Jan  9 21:25:19 2001  Jeffrey A Law  (law@cygnus.com)

	* objc/lang-options.h: Remove bogus reference to
	Java trademark.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Use a struct shift_info to
	return the result.

2001-01-09  Alan Lehotsky  <lehotsky@tiac.net>

	* reload.c (find_reloads_address): Check for eliminable registers
		  when substituting a constant expression for a pseudo.

2001-01-09  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (enum format_type): Add format_type_error.
	(decode_format_type): New function.
	(decl_attributes): Use it.
	(format_kind_info): Adjust comment.

2001-01-09  David O'Brien  <obrien@BSDi.com>

	* config.gcc (*-*-gnu*, i[34567]86-*-elf*, i[34567]86-*-linux*libc1,
	i[34567]86-*-linux*, i[34567]86-*-moss*): Specify needed platform specific
	files in tm_file.
	* config/i386/gnu.h: Don't include required platform specific .h files,
	tm.h will do it instead.
	* config/i386/i386elf.h: Likewise.
	* config/i386/linux.h: Likewise.
	* config/i386/moss.h: Likewise.
	* config/mips/gnu.h: Likewise.

2001-01-09  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config.gcc (powerpc-*-beos*): Include ${tm_file} and rs6000/aix.h.
	(rs6000-ibm-aix3.[01]*): Likewise.
	(rs6000-ibm-aix3.2.[456789]*, powerpc-ibm-aix3.2.[456789]*): Likewise.
	(rs6000-ibm-aix4.[12]*, powerpc-ibm-aix4.[12]*): Likewise.
	(rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Likewise.
	(rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise.
	(powerpc-*-sysv*): Include {tm_file}. svr4.h and rs6000/sysv4.h.
	(powerpc-*-eabiaix*): Likewise.
	(powerpc-*-eabisim*): Likewise.
	(powerpc-*-elf*): Likewise.
	(powerpc-*-eabi*): Likewise.
	(powerpc-*-rtems*): Likewise.
	(powerpc-*-linux*libc1): Likewise.
	(powerpc-*-linux*): Likewise.
	(powerpc-wrs-vxworks*): Likewise.
	(powerpcle-wrs-vxworks*): Likewise.
	(powerpcle-*-sysv*): Likewise.
	(powerpcle-*-elf*): Likewise.
	(powerpcle-*-eabisim*): Likewise.
	(powerpcle-*-eabi*): Likewise.
	(powerpcle-*-solaris2*): Likewise.
	* config/rs6000/aix31.h: Delete includes.
	* config/rs6000/aix3newas.h: Likewise.
	* config/rs6000/aix41.h: Likewise.
	* config/rs6000/aix43.h: Likewise.
	* config/rs6000/beos.h: Likewise.
	* config/rs6000/rtems.h: Likewise.
	* config/rs6000/sysv4.h: Likewise.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Remove an argument cpu.
	Change an argument mode of machine_mode to shift_mode of
	shift_mode.  Remove an extra error check.
	(emit_a_shift): Adopt to the new calling prototype of
	get_shift_alg.
	(function_prologue): Fix code for a monitor
	function.  Support H8/S.
	(function_epilogue): Do not output pop for a monitor function.

2001-01-09  Nick Clifton  <nickc@redhat.com>

	* config/rs6000/rs6000.c (rs6000_sysv_varargs_p): Delete.
	(setup_incoming_varargs): Use sysv_varargs_p field of the
	cfun->machine structure.
	(struct machine_function): Move to rs6000.h
	(rs6000_save_machine_status): Delete.
	(rs6000_restore_machine_status): Delete.
	(rs6000_init_machine_status): New Function.
	(rs6000_free_machine_status): New Function.
	(rs6000_init_expanders): Use new functions.

	* config/rs6000/rs6000.h (rs6000_sysv_varargs_p): Delete
	export.
	(struct machine_function): Move here.

	* config/rs6000/sysv4.h (RS6000_VARARGS_AREA): Use
	sysv_varargs_p field of the cfun->machine structure.

	* config/rs6000/rs6000-protos.h (rs6000_save_machine_status):
	Remove prototype.
	(rs6000_restore_machine_status): Remove prototype.

2001-01-09  Richard Henderson  <rth@redhat.com>

	* sched-int.h (struct deps): Add max_reg, reg_last_in_use; merge
	reg_last_uses, reg_last_sets, reg_last_clobbers into struct deps_reg.
	* sched-deps.c (sched_analyze_1): Update uses of struct deps.
	(sched_analyze_2, sched_analyze_insn): Likewise.
	(sched_analyze, init_deps): Likewise.
	(free_deps): Likewise.  Iterate with EXECUTE_IF_SET_IN_REG_SET.
	* sched-rgn.c (propagate_deps): Likewise.  Remove max_reg argument.
	(compute_block_backward_dependences): Update propagate_deps call.

2001-01-09  Mark Elbrecht  <snowball3@bigfoot.com>

	* gcc.c (process_command): Set switches[n_switches].ordering to 0.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (OPT_MD, OPT_MMD): Restore.
	(cpp_handle_option): Handle them.
	(cpp_post_options): Ensure one of -M or -MM is specified with
	any other -M? option.
	(init_dependency_output): Suppress output with -MG.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update.
	* invoke.texi: Update.

2001-01-09  Bernd Schmidt  <bernds@redhat.com>

	* sh.md (reload_outsf): Generate recognizable patterns for
	TARGET_SH3E.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (lang_hooks): Update.
	(lang_init): Rename c_init.
	(lang_finish): Remove.
	* toplev.c (compile_file): Use lang_hooks for lang_init ()
	and lang_finish ().
	* toplev.h (lang_hooks): Add init () and finish ().
	* tree.h (lang_init, lang_finish): Remove.
	* cp/tree.h (lang_init, lang_finish): Remove.
	* cp/decl2.c (cxx_post_options, lang_hooks): Move to cp/lex.c.
	* cp/lex.c (cxx_init, cxx_finish, cxx_post_options,
	lang_hooks): New.
	(lang_init, lang_finish): Remove.
	* f/com.c (lang_init, lang_finish): Rename f_init, f_finish.
	(lang_hooks): Update.
	* java/lang.c (lang_init): Rename java_init.
	(lang_finish): Remove.
	(lang_hooks): Update.
	* objc/objc-act.c (lang_init): Rename objc_init.
	(lang_finish): Remove.
	(lang_hoooks): Update.

20001-01-09  Graham Stott  <grahams@redhat.com>

	* cppfiles.c (_cpp_execute_include): Move `len` initialisation
	after `ptr` is initialised.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (STATIC_CHAIN_REGNUM): Change from r13 to r3.
	(INITIALIZE_TRAMPOLINE): Adjust accordingly.
	* config/sh/sh.c (sh_expand_prologue): Use r1 as temporary for
	stack adjusts, instead of r3.

2001-01-09  Michael Hayes  <mhayes@redhat.com>

	* flow.c (flow_loop_scan): Break out of ...
	(flow_loops_find) ... here.
	* basic-block.h (flow_loop_scan): New.
	(LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES): Add.
	(LOOP_EDGES, LOOP_EXITS_DOMS, LOOP_ALL): Redefine.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* cppinit.c (cpp_cleanup): NULLify macro_buffer and zero
	macro_buffer_len.
	* cppmacro.c (cpp_macro_definition): Reset macro_buffer_len when
	realloc()ing macro_buffer.

	* hwint.h (HOST_BITS_PER_WIDE_INT, HOST_WIDE_INT): Use long long
	if it's wider than long and the target's long is wider than the
	host's.

2001-01-09  Mark Mitchell  <mark@codesourcery.com>

	Remove support for using UWIN as a host machine.
	* configure.in: Issue an error message.
	* configure: Regenerated.
	* config.gcc: Remove xm_* UWIN configury.
	* config/i386/xm-uwin.h: Remove.

2001-01-08  Nick Clifton  <nickc@redhat.com>

	* config/v850/v850.c (ra_rtx): Delete.
	(v850_save_machine_status): Delete.
	(v850_restore_machine_status): Delete.
	(v850_init_machine_status): New function.
	(v850_mark_machine_status): New function.
	(v850_free_machine_status): New function.
	(v850_return_addr): Use ra_rtx field in machine structure.
	(v850_init_expanders): Use new functions.

	* config/v850/v850-protos.h: Fix prototypes for v850_output_*
	* config/v850/v850.c: Change arguments to v850_output+* functions
	to take a const char *, to avoid compile time warning.
	* config/v850/v850.h (ASM_OUTPUT_LABELREF): Undefine, not needed.
	(USER_LABEL_PREFIX): Redefine.

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

	* sched-rgn.c (BITSET_ADD, BITSET_REMOVE, bitset_member): Cast
	1 to unsigned HOST_WIDE_INT before left shift.

2001-01-08  Nick Clifton  <nickc@redhat.com>

	* config/arm/arm.c (arm_mark_machine_status): Check to see if
	the machine structure has been allocated.
	(arm_free_machine_status): New function: Free the machine
	specific function structure.

2001-01-08  Richard Henderson  <rth@redhat.com>

	* jump.c (simplejump_p): Revert last change.

2001-01-08  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (init): Rename init_library.
	(cpp_create_reader): Update.
	* gcc.c (cpp_options): If -o given, use it as the target of
	any -M options.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_arch5e): New variable.
	(all_cores): XScale is a 5TE device.
	(arm_override_options): Set arm_arch5e.
	(arm_init_builtins): __builtin_prefetch is in arch5e.
	* arm.h (arm_arch5e): Declare it.

	* arm.h (PREDICATE_CODES): Add arm_hard_register_operand.

	* arm.md (define_constants): Add defines for UNSPEC and
	UNSPEC_VOLATILE insns.  Update all users.
	(define_constants): Add constants for IP_REGNUM, SP_REGNUM, PC_REGNUM.
	* arm.c (multi_register_push, note_invalid_constants)
	(emit_multi_reg_push, emit_sfm, expand_prologue): Use constants.
	* arm.h (SP_REGNUM, IP_REGNUM, PC_REGNUM): Delete defines.
	(STACK_POINTER_REGNUM): Define in terms of SP_REGNUM.

Mon Jan  8 16:14:56 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (jump_optimize_1): Use reversed_comparison_code
	instead of can_reverse_comparison_p.
	(jump_back_p): Likewise.
	(invert_exp_1): Likewise.
	(thread_jumps): Likewise.
	* simplify-rtx.c (simplify_unary_operation): Likewise.
	(simplify_ternary_operation): Likewise.
	* cse.c (find_comparison_args): Convert to use
	can_reverse_comparison_p.
	(record_jump_equiv): Likewise.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

	* arm.h (HARD_REGNO_RENAME_OK): Delete.
	(EPILOGUE_USES): Define.
	(INITIAL_ELIMINATION_OFFSET): Current prologue code does not
	automatically stack the LR if it isn't live.

Mon Jan  8 13:46:02 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_expand_int_movcc): Take care to reverse fp conditions
	properly.

Sun Jan  7 18:37:43 2001  Mark P Mitchell  <mark@codesourcery.com>

	* ggc-page.c (max_alignment): New structure.
	(MAX_ALIGNMENT): New macro.
	(init_ggc): Use it to round up the sizes in the
	extra_order_size_table.

2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
	after reload.

2001-01-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.def (BUILT_IN_FPRINTF): New entry.

	* c-common.c (c_expand_builtin_fprintf): New function.
	(init_function_format_info): Handle __builtin_fprintf.
	(c_common_nodes_and_builtins): Declare fprintf/__builtin_fprintf.
	(c_expand_builtin): Handle BUILT_IN_FPRINTF.

	* c-decl.c (duplicate_decls): Adjust comment.

	* extend.texi (fprintf): Document new builtin.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* jump.c (simplejump_p): Recognize any single_set jump
	of the proper form.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* configure.in (slibdir): Accept an --with-slibdir option.
	Use "test" not "[" in configure.  Default to $(libdir).

	* config/t-linux (SHLIB_INSTALL): Double quote slibdir;
	fix typo in rm -f.
	* config/t-aix43 (SHLIB_INSTALL): Likewise.
	* config/alpha/t-osf4 (SHLIB_INSTALL): Likewise.
	(SHLIB_LINK): Create links for the soname.
	* config/mips/t-iris6: Likewise.
	* config/sparc/t-slibgcc: Likewise.
	* config/sparc/t-slibgcc-sld: Likewise.

2001-01-07  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (constant_call_address_operand): Accept
	(const (plus (symbol_ref) (const_int))).
	* config/i386/i386.h (PREDICATE_CODES): Add CONST for
	constant_call_address_operand.

2001-01-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* libgcc2.h (W_TYPE_SIZE): Fix case where MIN_UNITS_PER_WORD == 1
	and LONG_LONG_TYPE_SIZE > 32.

2001-01-07  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* jump.c (reversed_comparison_code_parts): Fix typo introduced by
	the previous change.

Sun Jan  7 19:37:48 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (reversed_comparison_code_parts, reversed_comparison_code):
	New.
	(can_reverse_comparison_p): Rewrite to use reversed_comparison_code.
	(reverse_condition_maybe_unordered): Abort on unsigned comparisons.
	* rtl.h (reversed_comparison_code_parts, reversed_comparison_code):
	Declare.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* fix-header.c (read_scan_file): s/pfile/scan_in/.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (c_post_options): Call cpp_post_options.
	* objc/objc-act.c (objc_post_options): Similarly.
	* cppmain.c (main): Similarly.
	* fix-header.c (read_scan_file): Similarly.
	* cppinit.c (cpp_start_read): Move option consistency checks
	to cpp_post_options.  Don't call init_dependency_output.
	If needed, add default target and main file dependency.
	(OPT_MD, OPT_MMD): Remove.
	(OPT_MF): New.
	(cpp_handle_option): Update for OPT_* changes.
	(cpp_post_options): New.
	(init_dependency_output): Command line -MF overrides environment
	variables.  Don't set default target etc.  Suppress output
	if dependencies are going to stdout.
	(print_help): Update.
	* cpplib.h (cpp_post_options): New.
	* gcc.c (cpp_options): Update for -MD, -MMD, -MF.

Sun Jan  7 14:44:19 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (comparison_dominates_p): Support unordered compares.

Sun Jan  7 14:39:07 MET 2001  Jan Hubicka  <jh@suse.cz>

	* simplify-rtx.c (simplify_relational_operation): Always simplify
	ORDERED and UNORDERED when FLAG_FAST_MATH.  Handle properly UNLE
	and UNGE.

Sun Jan  7 14:35:13 MET 2001  Jan Hubicka  <jh@suse.cz>

	* combine.c (combine_simplify_rtx): Recognize the unordered compares.
	(nonzero_bits): Likewise.
	(simplify_comparison): Likewise.
	(num_sign_bit_copies): Likewise; return more sane value depending
	on STORE_FLAG_VALUE.
	(known_cond): Do not assume EQ to be always true for equivalent
	operands.

Sun Jan  7 14:31:57 MET 2001  Jan Hubicka  <jh@suse.cz>

	* cse.c (fold_rtx): Handle unordered comparisons.

Sun Jan  7 13:49:19 MET 2001  Jan Hubicka  <jh@suse.cz>

	* rtlanal.c (set_of_1): New static function.
	(reg_set_last_1, reg_set_p_1, reg_set_reg, reg_set_flag,
	 reg_set_last_unknown, reg_set_last_value, reg_set_last_first_regno,
	 reg_set_last_last_regno): Remove.
	(set_of): New global function.
	(set_of_data): New structure.
	(reg_set_p, reg_set_last): Revamp for set_of.
	* rtl.h (set_of): New.

2001-01-07  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (c_common_nodes_and_builtins): Add _Exit builtin.
	* extend.texi: Document _Exit builtin.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* (initialize, initialize_builtins,
	initialize_dependency_output, initialize_standard_includes):
	Rename s/initialize/init. Update.
	(init_dependency_output): Move to after
	cpp_handle_options, the correct location temporally at least.
	(opt_comp): Move next to init (), its caller.  Fix prototype.
	(init): Make "initialized" local scope.
	(cpp_create_reader): Always call init ().
	(cpp_start_read): Update.
	(output_deps): New function, broken out of cpp_finish.
	(cpp_finish): Break out output_deps.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* collect2.c (COFF specific stuff): Revert 12-06 patch
	to prototype system functions.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* hard-reg-set.h: Add multiple include guard.
	* basic-block.h (struct loop): Add `sink' field.
	* loop.h: Include sbitmap.h, hard-reg-set.h, and basic-block.h.
	(emit_iv_add_mult): Delete.
	(loop_iv_add_mult_hoist, loop_iv_add_mult_sink): Define.
	(loop_iv_add_mult_emit_before, loop_insn_sink): Define.
	(unroll_loop): Remove end_insert_before argument.
	* loop.c (loop_givs_rescan): Remove end_insert_before argument.
	(maybe_eliminate_biv_1): Likewise.
	(emit_iv_add_mult): Delete.
	(gen_add_mult, loop_regs_update): New.
	(loop_insn_emit_after, loop_insn_emit_before): New.
	(loop_insn_sink, loop_insn_sink_or_swim): New.
	(emit_iv_add_mult): Delete.
	(scan_loop): Set loop->sink.
	(loop_givs_reduce): Use loop_insn_sink and its ilk.
	(loop_givs_rescan, strength_reduce, check_dbra_loop): Likewise.
	(maybe_eliminate_biv_1): Likewise.
	(maybe_eliminate_biv_1): Add basic block argument.
	* unroll.c (unroll_loop): Remove end_insert_before argument.
	(find_splittable_regs): Likewise.
	(find_splittable_regs): Use loop_insn_sink and its ilk.
	(find_splittable_givs, final_biv_value, final_giv_value): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.h (loop_insn_hoist): New prototype.
	* loop.c (loop_insn_hoist, loop_insn_emit_before): New.
	(move_movables, loop_givs_rescan): Use loop_insn_hoist.
	(check_dbra_loop, load_mems): Likewise.
	* unroll.c (unroll_loop, find_splittable_regs): Likewise.
	(find_splittable_givs): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.c (emit_iv_add_mult): Use single_set to examine new insn.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* sched-rgn.c (is_cfg_nonregular): Fix thinko's last change.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* Makefile.in (DRIVER_DEFINES): Define ENABLE_SHARED_LIBGCC and
	NO_SHARED_LIBGCC_MULTILIB as required for the target.
	* gcc.c (init_spec): Massage the existing libgcc_spec into a
	variant that handles a shared libgcc.
	(process_command): Always validate -{static,shared}-libgcc.
	(do_spec_1): New 'M' case.
	* invoke.text (Link Options): Document -{static,shared}-libgcc.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* Makefile.in (slibdir): New variable.
	(libgcc.mk): Pass SHLIB_INSTALL to mklibgcc.
	(installdirs): Create slibdir.
	(install-libgcc, install-multilib): Defer to libgcc.mk.
	* configure.in (slibdir): Substitute.
	* mklibgcc.in (install): New target.

	* config/t-linux (SHLIB_LINK): Create links for the soname.
	(SHLIB_INSTALL): New.
	* config/alpha/t-osf4 (SHLIB_INSTALL): New.
	* config/mips/t-iris6 (SHLIB_INSTALL): New.
	* config/rs6000/t-aix43 (SHLIB_INSTALL): New.
	* config/sparc/t-slibgcc (SHLIB_INSTALL): New.
	* config/sparc/t-slibgcc-sld (SHLIB_INSTALL): New.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* config/rs6000/aix.h (LINK_LIBGCC_SPECIAL_1): New.
	* config/rs6000/rs6000.h (LIBGCC_SPEC): Remove.
	* config/rs6000/sysv4.h (LIBGCC_SPEC): Remove.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.c (count_loop_regs_set): Delete.
	(load_mems_and_recount_loop_regs_set): Delete.
	(loop_regs_scan): Merge common code from count_loop_regs_set,
	scan_loop, and load_mems_and_recount_loop_regs_set.
	(scan_loop): Call load_mems directly and loop_regs_scan
	again if new registers created.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* toplev.c (main): Call the front-end specific post_options
	hook if one is given.
	* toplev.h (struct_lang_hooks, lang_hooks): New.
	* c-lang.c (c_post_options, lang_hooks): Implement lang_hooks
	for the C front end.
	* cp/decl2.c (cxx_post_options, lang_hooks): Implement
	lang_hooks for the C++ front end.
	* objc/objc-act.c (objc_post_options, lang_hooks): Implement
	lang_hooks for the ObjC front end.
	* f/com.c (lang_hooks): Hooks for the Fortran front end.
	* java/lang.c (lang_hooks): Hooks for the Java front end.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lex.c (init_c_lex): Request #define / #undef callbacks
	for verbose DWARF[2] debugging.
	(cb_define, cb_undef): The new callbacks.
	* toplev.h (debug_define, debug_undef): Make const correct.
	* toplev.c (debug_define, debug_undef): Similarly.  Do not
	perform the verbosity tests here anymore.

2001-01-07  Alexandre Oliva  <aoliva@redhat.com>

	* reload.c (subst_reloads): Take INSN argument.  When
	replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
	* reload.h (subst_reloads): Adjust prototype.
	* reload1.c (reload_as_needed): Pass INSN to subst_reloads.
	* jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
	present in JUMP_INSNs and copy them to JUMP_LABEL.
	* flow.c (find_label_refs, find_basic_blocks_1): Skip
	JUMP_INSNs and insns with REG_LABELs that are followed by
	JUMP_INSNs with the same REG_LABEL.
	* sched-rgn.c (is_cfg_nonregular): Likewise.
	* rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
	note is available.
	* unroll.c (unroll_loop): Look for REG_LABEL notes in
	JUMP_INSNs too.
	* rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.

2001-01-06  Richard Henderson  <rth@redhat.com>

	* loop.c (scan_loop): Use xcalloc for the regs array.
	(load_mems_and_recount_loop_regs_set): Zero the new memory
	received from xrealloc.

2001-01-06  Neil Booth  <neil@daikokuya.demon.co.uk>

	* mkdeps.c (deps_add_dep): Fix vector re-allocation.

Sat Jan  6 00:09:34 2001  J"orn Rennecke <amylaar@redhat.com>

	* integrate.c (copy_rtx_and_substitute): When copying
	an ignored return value, strip REG_FUNCTION_VALUE_P.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

	* loop.c (debug_biv, debug_giv): New.
	(loop_biv_dump): Break out from ...
	(record_biv): ... here.
	(loop_giv_dump): Break out from ...
	(record_giv): ... here.
	(loop_bivs_check): Use print_simple_rtl.
	* unroll.c (loop_iterations): Use print_simple_rtl.

2000-01-05  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.md (return, return_internal): Modify patterns to prevent regrename
	mucking with the return pointer.

2001-01-05  Richard Henderson  <rth@redhat.com>

	* dwarf2out.c (mem_loc_descriptor) [case MEM]: Revert 10-31 change.

Fri Jan  5 16:34:18 2001  Nick Clifton  <nickc@redhat.com>

	* config/v850/lib1funcs.asm: Replace __mulsi3 routine with faster
	version supplied by Matteo Frigo.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MQ.
	* cppinit.c (cpp_create_reader): Always create pfile->deps.
	(cpp_cleanup): Always free pfile->deps.
	(initialize_dependency_output): Don't create pfile->deps.
	(cpp_handle_option): Similarly.
	(OPT_MQ): New.
	* gcc.c (cpp_options): Handle -MQ.
	(DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.
	* mkdeps.c (base_name): Remove.
	(deps_init): Don't allocate vector space until it's needed.
	(deps_free): Only free vectors if allocated.
	(deps_add_target, deps_add_dep): Update for initial allocation.
	(deps_add_default_target): Don't strip to the base_name.

2001-01-05  DJ Delorie <dj@redhat.com>

	* config/v850/v850.h (RETURN_ADDR_RTX): Define.
	(INIT_EXPANDERS): Define.

	* config/v850/v850.c (struct machine_function): Define.
	(v850_save_machine_status): New function.
	(v850_restore_machine_status): New function.
	(v850_return_addr): New function.
	(v850_init_expanders): New function.

	* config/v850/v850-protos.h: Add prototypes for v850_return_addr
	and v850_init_expanders.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

	* cpplib.h (struct cpp_reader): Add help_only field.
	* cppinit.c (COMMAND_LINE_OPTIONS): Add OPT_version.
	(cpp_handle_option): Set pfile->help_only if we see -h,
	--help, -target-help, or --version.  Print version string but
	do not set help_only if we see -v or -version.  Make text
	printed by -v match that printed by (-)-version.

	* cppmain.c (main): Exit after option parsing if
	pfile->help_only is true.

	* toplev.c (independent_decode_option): Call print_version,
	then exit, if we see --version (but not -version).
	(print_version): Split lengthy message into two lines.

2001-01-05  Nick Clifton  <nickc@redhat.com>

	* config/v850/v850.c (v850_encode_data_area): Use alloca to create
	temporary string for initialisation before calling ggc_alloc_string.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

	* rtl.h (print_simple_rtl): New.
	* print-rtl.c (print_simple_rtl): New.
	(flag_simple): New.
	(print_rtx): Disable printing of flags and modes, etc.,
	if `flag_simple` nonzero.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

	* function.c (fixup_var_refs): Use push_to_full_sequence where
	possible.

2001-01-05  Michael Meissner  <meissner@redhat.com>

	* flags.h (flag_reorder_blocks): Add declaration.
	(flag_rename_block): Ditto.

2001-01-05  DJ Delorie  <dj@redhat.com>

	* function.c (reorder_blocks): Make sure the flags are all reset
	before using them to mark blocks, else a second invocation will
	corrupt the block chain.
	(reorder_blocks_0): New, resets the flags.

Fri Jan  5 20:34:06 2001  J"orn Rennecke <amylaar@redhat.com>

	* cse.c (find_comparison_args): Stop if the argument is known to
	be constant.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (movdf): When splitting load into pair of
	registers, don't clobber the register used in the address too
	early.

2001-01-05  Jeffrey Oldham  <oldham@codesourcery.com>

	* varasm.c (mark_constant_pool): Improve initial comments.
	(mark_constants): Move marking of constants to mark_constant.
	(mark_constant): New function to recursively mark all constants
	referred to by a constant.

2001-01-05  Catherine Moore  <clm@redhat.com>

	* dbxout.c ((dbxout_parms): Handle invisible ref where decl is a REG.

2001-01-05  Phil Edwards  <pme@sources.redhat.com>

	* cp/lang-options.h:  Bring comment in line with reality.
	* f/lang-options.h:  Likewise.
	* java/lang-options.h:  Likewise.
	* objc/lang-options.h:  Likewise.
	* ch/lang-options.h:  Likewise.
	* f/g77.texi:  And update the manual.

2001-01-05  Marek Michalkiewicz  <marekm@linux.org.pl>
	    Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.h (avr_peep2_scratch_safe): Prototype.
	* config/avr/avr.c (avr_peep2_scratch_safe): New function.
	* config/avr/avr.md (all peepholes that request a scratch register):
	Call it, FAIL the peephole if not safe (in interrupt functions).

2001-01-05  Mark Mitchell  <mark@codesourcery.com>

	* ggc-page.c (NUM_EXTRA_ORDERS): Hardwire to zero for now.

2001-01-05  Joseph S. Myers  <jsm28@cam.ac.uk>

	* builtins.def (BUILT_IN_CONJ, BUILT_IN_CREAL, BUILT_IN_CIMAG):
	Define.
	* builtins.c (expand_builtin): Abort on BUILT_IN_CONJ,
	BUILT_IN_CREAL and BUILT_IN_CIMAG.
	* c-common.c (c_common_nodes_and_builtins): Create builtin conjf,
	conj, conjl, crealf, creal, creall, cimagf, cimag and cimagl.
	(expand_tree_builtin): Handle BUILT_IN_CONJ, BUILT_IN_CREAL and
	BUILT_IN_CIMAG.
	* extend.texi: Document these builtins.

2001-01-05  Daniel Berlin  <dberlin@redhat.com>

	* c-common.c (lang_get_alias_set): Say we know nothing of
	VECTOR_TYPE aliasing.

	* dwarf2out.c (is_base_type): Handle VECTOR_TYPE properly.

2001-01-05  Bruce Korb  <bkorb@gnu.org>

	* fixinc/mkfixinc.sh(vax-*-bsd): convert exit and atexit calls to
	their x* equivalent versions for atexit-less systems
	* fixinc/fixincl.c(main): do not return from main() on atexit-less
	systems (or any other system any more).

2001-01-05  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
	output operands.  Use arm_hard_register_operand for operand 4.
	(stmsi_postinc): Similarly.
	(ldmsi): Use arm_hard_register_operand for opernand 2.
	(stmsi): Similarly.
	* arm.c (arm_hard_register_operand): New function.
	* arm-protos.h (arm_hard_register_operand): Prototype it.

	* arm.h (HARD_REGNO_RENAME_OK): Define.

Fri Jan  5 16:29:49 MET 2001  Jan Hubicka  <jh@suse.cz>

	* simplify-rtx.c (cfc_args): add "unordered" field.
	(check_fold_consts): Set unordered field.
	(simplify_relational_operation): Simplify the unordered
	comparisons.

	* reg-stack.c (swap_rtx_condition): Ensure that the transformation
	is valid.

	* emit-rtl.c (try_split): Fix code to mark labels.
	* jump.c (mark_jump_label): Make global.
	* rtl.h (mark_jump_label): Declare.

	* predict.c (estimate_probability): Handle unordred comparisons.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MP.  Clarify behaviour of -MT.
	* cppinit.c (initialize_dependency_output):  Update.
	(cpp_finish): Output dummy targets for -MP.
	(OPT_MP): New.
	(cpp_handle_option): Handle -MP.  Don't quote -MT options.
	* cpplib.h (struct cpp_options): Add deps_phony_targets.
	* gcc.c (cpp_options): Update to handle -MP.
	* mkdeps.c (deps_add_target, deps_add_default_target): Update
	to quote only the default target.
	(deps_phony_targets): Insert a preceding newline.  Rename from
	deps_dummy_targets for consistency.
	* mkdeps.h: Update

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* calls.c (emit_library_call_value_1): Support
	INIT_CUMULATIVE_LIBCALL_ARGS.
	* tm.texi (INIT_CUMULATIVE_LIBCALL_ARGS): Document it.

2001-01-04  Richard Henderson  <rth@redhat.com>

	* c-decl.c (finish_struct): Detect flexible array members
	used in an inappropriate context.
	* c-typeck.c (really_start_incremental_init): Special case
	constructor_max_index for zero length arrays.
	(pop_init_level): Allow initialization of flexible array
	members.  Deprecate initialization of zero length arrays.
	Don't issue missing initializer warning for flexible array
	members or zero length arrays.
	(process_init_element): Don't dereference null DECL_SIZE.
	* varasm.c (array_size_for_constructor): Return a HOST_WIDE_INT.
	Don't abort for empty constructors.  Use size_binop
	(output_constructor): Add commentary regarding zero length
	array futures.  Abort if we try to initialize an array of
	unspecified length with a non-empty constructor in the middle
	of a structure.

	* extend.texi (Zero Length): Update and clarify documentation
	on static initialization.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_expand_prologue): Don't compile an ISR
	with more than 32767 words of local storage.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_init_builtins): Remove builtin support
	for 'abs', 'labs', and 'fabs'.
	(c4x_expand_builtin): Likewise.
	* config/c4x/c4x.h (enum c4x_builtins): Likewise.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (prget, prset): New insn types.
	(return delay slot): Dont' allow prset.
	(call, sfunc delay slot): Don't allow prget.
	(movsi_i, movsi_ie, movsi_i_lowpart): Create separate alternatives
	for prset and prget.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

	* loop.h (struct loop_reg): New.
	(struct loop_regs): Change to use array of `struct loop_reg'.
	* loop.c: Replace assortment of varrays with single regs array.
	(count_one_set): Delete may_not_move array argument
	and use regs array instead.  All caller's changed.
	(count_loop_regs_set): Delete may_not_move and single_usage
	arguments and use regs array instead.  All caller's changed.
	(find_single_use_in_loop): Replace usage array argument with pointer
	to regs structure.  All caller's changed.
	(loop_optimize): Delete `moved_once' array.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

	* loop.c (prescan_loop): Set loop_info->has_nonconst_call.
	Use it instead of loop_info->has_call for scanning loop mems.
	(check_dbra_loop): Replace loop_info->has_call test with
	loop_info->has_nonconst_call.

2000-01-04  Matthew Hiller  <hiller@redhat.com>

	* config/sh/sh.h (EPILOGUE_USES): Recognize fpscr as epilogue-used
	for TARGET_SH3E.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* fold-const.c (fold): When folding a CONJ_EXPR of a COMPLEX_CST,
	use TREE_REALPART and TREE_IMAGPART instead of TREE_OPERAND.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (SIZE_TYPE, WCHAR_TYPE): Define.
	(flag_short_double, flag_short_wchar): Define.
	(c_common_nodes_and_builtins): Create many tree nodes shared
	between C and C++ here instead of in cp/decl.c and ...
	* c-decl.c (init_decl_processing): ... here.
	(SIZE_TYPE, WCHAR_TYPE): Don't define.
	(flag_short_double, flag_short_wchar): Don't define.
	(record_builtin_type): New function.
	(build_void_list_node): New function.
	* c-common.h (flag_short_double, flag_short_wchar,
	record_builtin_type, build_void_list_node): Declare.

Thu Jan  4 21:09:47 2001  J"orn Rennecke <amylaar@redhat.com>

	* integrate.c (expand_inline_function): Don't put a virtual
	register into the reg map.

	* function.c (fixup_var_refs_1): If force_operand didn't put
	the address into the target, move it there.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

	Special-case tree_decl/tree_list allocations.
	* ggc-page.c (OBJECT_PER_PAGE): Reimplement.
	(OBJECT_SIZE): New macro.
	(NUM_EXTRA_ORDER): Likewise.
	(extra_order_size_table): New variable.
	(NUM_ORDERS): New macro.
	(objects_per_page_table): New variable.
	(object_size_table): New variable.
	(G.pages): Use NUM_ORDERS to bound the array.
	(G.page_tails): Likewise.
	(DIV_ROUND_UP): Remove.
	(BITMAP_SIZE): Use CEIL, instead of DIV_ROUND_UP.
	(alloc_page): Use OBJECT_SIZE.
	(size_lookup): Don't make it const.
	(ggc_alloc): Use OBJECT_SIZE.
	(ggc_set_mark): Likewise.
	(ggc_get_size): Likewise.
	(init_ggc): Set up the object_size_table, objects_per_page_table,
	and adjust size_lookup.
	(ggc_recalculate_in_use_p): Use CEIL, not DIV_ROUND_UP.
	(ggc_pop_context): Use NUM_ORDERS.
	(clear_marks): Likewise.
	(sweep_pages): Likewise.
	(poison_pages): Likewise.
	(ggc_print_statistics): Use OBJECT_SIZE.

Thu Jan  4 15:54:05 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* varasm.c (output_constructor): Use HOST_WIDE_INT for sizes.
	Only call array_size_for_constructor if last field and array type
	with no upper bound.

2001-01-04  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.c (arm_gen_constant): Prefer to emit constants
	from bit 31 downwards, if this requires no more insns.
	(count_insns_for_constant): New helper function for above.

2001-01-04  Alexandre Oliva  <aoliva@redhat.com>

	* gencodes.c (output_predicate_decls): Remove empty initializer.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

	* tree.c (copy_node): Remove documentation about obstacks.
	(buidl1): Check that nobody tries to build 2-argument nodes this
	way.

2001-01-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* sparc.h (PREDICATE_CODES): Delete fp_sethi_p, fp_mov_p and
	fp_high_losum_p.

	* gencodes.c (output_predicate_decls): Fill empty initializer
	braces.

2001-01-04  Jakub Jelinek  <jakub@redhat.com>

	* tradcpp.c (deps_file, print_deps_missing_files): New variables.
	(main): Handle -MG, -MD, -MMD.  Bail out if -MG is given without -M
	or -MM.
	(do_include): Handle missing headers like cpp0.
	* cppfiles.c (_cpp_execute_include): Don't prefix absolute header
	paths with first include pathname.  Don't strcat to uninitialized
	string.

2001-01-04  Bernd Schmidt  <bernds@redhat.com>

	* regrename.c (regrename_optimize): Don't rename from frame pointer
	if frame_pointer_needed.
	(do_replace): Don't set ORIGINAL_REGNO to a hard register number.
	* config/ia64/ia64.c (emit_all_group_insn_barriers): New function.
	(ia64_reorg): Use it instead of scheduling if ! optimize.
	(errata_emit_nops): Properly call asm_noperands.
	(ia64_sched_reorder): Finish cycle if we see an asm.
	(ia64_variable_issue): Clear scheduling state after asms.

2001-01-04  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MT.
	* cppinit.c (initialize_dependency_output): Add a default
	target if none has been given already.
	(no_tgt, OPT_MT): New.
	(cpp_handle_option): Handle -MT.  Update -M etc.
	* cpplib.h (struct cpp_options): Remove deps_target.
	* gcc.c (cpp_options): Handle -MT.
	* mkdeps.c (struct deps): Move from mkdeps.h.
	(deps_calc_target): Rename deps_add_default_target.  Add a
	default target if none has been specified already.
	* mkdeps.h (struct deps): Move to mkdeps.c.
	(deps_calc_target): Rename deps_add_default_target.

2000-01-03  Richard Henderson  <rth@redhat.com>

	* c-decl.c (grokdeclarator): Give zero-length arrays size zero.
	Remove dead code.
	* c-typeck.c (push_init_level): Move checks for flexible array
	members and zero length arrays ...
	(pop_init_level): ... here.  Silently discard empty initializations.
	Remove dead code.
	* varasm.c (output_constructor): Update for sizeof change to
	zero-length arrays.

	* extend.texi (Zero Length): Clarify semantics.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* configure.in (tm.h): Include isns-codes.h last.
	* configure: Rebuilt.

2001-01-03  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.md (addvsi3, addvdi3): New.
	(negvsi2, negvdi2, subvsi3, subvdi3, mulvsi3, mulvdi3): New.

2001-01-03  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* tradcpp.c (main): Make sure finclude() is called with a valid
	indepth value while handling -include.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* gencodes.c (output_predicate_decls): New function.
	(main): Call it.
	* machmode.h (GET_MODE_MASK): Arrange for it to be defined
	even if it is not the first time machmode.h is #included.
	* config/sh/sh.c (fpul_operand): Declare MODE argument.
	* tm.texi (PREDICATE_CODES): Document predicate declarations.
	* gcc.texi (Copyright): Added 2001.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (c_common_lang_init): New function.  Warn if format
	warning options which only have effects when used with -Wformat
	are used without -Wformat.
	* c-common.h (c_common_lang_init): Declare.
	* c-lang.c (lang_init): Call c_common_lang_init.
	* objc/objc-act.c (lang_init): Call c_common_lang_init.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Check for the mktemp command.
	* configure: Regenerate.
	* gccbug.in: Use a separate temporary file $TEMP0 for one use of
	$TEMP.  Create temporary files with mktemp, if available at
	configure time; otherwise use set -C.  Remove temporary files
	before exit.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Require at least texinfo 4.0.  Check for whether
	Pod::Man is sufficiently recent to regenerate GCC manpages.
	* configure:  Regenerate.
	* Makefile.in (TEXI2POD): Call perl explicitly rather than relying
	on #!.
	(GENERATED_MANPAGES): Define.
	(generated-manpages): New target.  Depend on cpp.1 as well as
	gcov.1.
	(install-man): Depend on $(GENERATED_MANPAGES) (defined by
	configure to generated-manpages or empty) rather than on the
	manpages directly.  Remove execute permission from installed
	gcov.1 as well as cpp.1.
	* cpp.1, gcov.1: Regenerate.

2001-01-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_strncmp): Use host_integerp and
	tree_low_cst.  Allow using cmpstrsi in more cases.

Wed Jan  3 10:48:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/sparc/sparc.h (RETURN_IN_MEMORY): Return 0 for variable
	sized types.

Wed Jan  3 12:22:32 2001  Alexandre Oliva  <aoliva@redhat.com>

	* build-make (HOST_CFLAGS): Added `-DGENERATOR_FILE'.
	* Makefile.in (HOST_CFLAGS): Mention build-make.

Wed Jan  3 08:53:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/sparc/sparc.md (nonlocal_goto): Emit goto_handler_and_restore
	as JUMP_INSN.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

	* builtins.c (expand_builtin_return_addr): Don't use MEM_ALIAS_SET on
	a REG rtx.

	* cse.c (cse_rtx_varies_p): Accept additional FROM_ALIAS arg.  All
	callers changed.

	* alias.c (throughout): Use ORIGINAL_REGNO when accessing
	reg_base_value and reg_known_value arrays.
	(init_alias_analysis): Add more cases to detect known values.
	* sched-deps.c (deps_may_trap_p): New function.
	(sched_analyze_2): Use it.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* combine.c (simplify_shift_const): Even if we're sign-extracting,
	don't discard an ASHIFTRT if we're shifting in a wider mode.

2000-01-02  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* toplev.c (rest_of_compilation): Don't print basic block information
	when CFG isn't up to date.

2001-01-02  Mark Elbrecht  <snowball3@bigfoot.com>

	* config/i386/djgpp.h (DWARF2_DEBUGGING_INFO): Define.
	(UNALIGNED_INT_ASM_OP, UNALIGNED_DOUBLE_ASM_OP): Define.
	(UNALIGNED_SHORT_ASM_OP): Define.
	(CPP_PREDEFINES): Remove defines for GO32 and DJGPP.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

	* fold-const.c (fold_convert): Fix typo.

2001-01-02  Richard Henderson  <rth@redhat.com>

	* c-common.h (ASM_INPUT_P): New.
	* c-parse.in (asm): Set it when needed.
	* c-semantics.c (genrtl_asm_stmt): Test it instead of the
	existance of an operand.

Tue Jan  2 20:27:07 MET 2001  Jan Hubicka  <jh@suse.cz>

	* dwarf2out.c (stack_adjust_offset): Handle PRE_MODIFY.
	(dwarf2out_frame_debug_expr): Likewise.
	(mem_loc_descriptor): Handle PRE and POST_MODIFY.

Tue Jan  2 20:21:31 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_split_to_parts): Return number of part required;
	handle TFmodes.
	(print_operand, ix86_expand_branch, ix86_expand_fp_movcc): Handle
	TFmodes.
	(ix86_split_long_move): Use number of part returned
	by ix86_split_to_parts
	* i386.h (MASK_128BIT_LONG_DOUBLE, TARGET_128BIT_LONG_DOUBLE):
	New macros.
	(TARGET_SWITCHES): Add 128bit-long-double and 96bit-long-double
	(LONG_DOUBLE_TYPE_SIZE): Change from constant.
	(MAX_LONG_DOUBLE_TYPE_SIZE): New macro.
	(INTEL_EXTENDED_IEEE_FORMAT): Likewise.
	(ALIGN_MODE_128): Add TFmode.
	(IS_STACK_MODE): Likewise.
	(HARD_REGNO_NREGS): TFmode needs 3 registers.
	(HARD_REGNO_OK): Support TFmodes.
	(ASM_OUTPUT_LONG_DOUBLE): Handle TFmodes.
	* i386.md (scheduler definitions): Use memory operand to determine
	fst/fld instructions; use mode attribute to determine real mode of
	the instruction.
	(*tf): New patterns, expanders and splitters; based on XFmode patterns.
	* invoke.texi (128bit-long-double, 96bit-long-double): Document.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

	* tree.def (TRUTH_NOT_EXPR): Improve documentation.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

	* expr.c (store_constructor_field): Update ALIGN before calling
	store_constructor.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

	* config/mips/mips.c (function_arg): Don't pass NULL_TREE to
	host_integerp.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

	* tm.texi (FUNCTION_ARG): Document that @var{type} can be an
	incomplete type.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

	* c-decl.c (start_function): Don't warn on third parameter to main.

2001-01-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* tsystem.h: Define HAVE_DECL_GETOPT.

2001-01-02  Philip Blundell  <pb@futuretv.com>

	* config/arm/linux-gas.h (CLEAR_INSN_CACHE): Avoid illegal clobber
	of input operand.

2001-01-02  Richard Henderson  <rth@redhat.com>

	* alpha.md (*ze_and_ne): Duplicate insn condition to split.

2001-01-02  Andreas Jaeger  <aj@suse.de>

	* c-decl.c (c_decode_option): Remove support of
	-Wmissing-noreturn.

	* toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
	(W_options): Add -Wmissing-noreturn here.

	* flow.c: Define lang_missing_noreturn_ok_p.
	(check_function_return_warnings): Use it.

	* c-common.h: Declare lang_missing_noreturn_ok_p.

	* c-lang.c (c_missing_noreturn_ok_p): New function.
	(lang_init): Set lang_missing_noreturn_ok_p.

	* invoke.texi (Warning Options): Document this.

2000-12-27  Phil Edwards  <pme@sources.redhat.com>

	* extend.texi (C++ Extensions):  New node for C++ attributes;
	  describe init_priority and com_interface.
	* invoke.texi:  Remove -finit-priority as it now has zero effect.
	* install.texi:  Fix xref syntax.
	* md.texi:  Likewise.

Mon Jan  1 21:28:29 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config.gcc (sparc64-wrs-vxworks*): New case.
	* config/sparc/vxsparc64.h, config/sparc/t-vxsparc64: New files.

	* config/sparc/sparc.c (sparc_override_options): Do support different
	pointer and architecture size.
	* config/sparc/sparc.h (MIN_UNITS_PER_WORD): Always 4.
	(POINTERS_EXTEND_UNSIGNED): Define.
	(Pmode): Test TARGET_ARCH64, not TARGET_PTR64.
	(FUNCTION_MODE): Define to be Pmode.
	* config/sparc/sparc.md (64-bit call patterns): FUNCTION_MODE now DI.

	* function.c (expand_function_end): Properly handle DECL_RESULT
	and copy when ptr_mode != Pmode.
	* expmed.c (make_tree): Convert X from Pmode to ptr_mode, if needed.

2001-01-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (c_common_nodes_and_builtins): Set prototype
	parameters for __builtin_fputs, __builtin_fputc and
	__builtin_fwrite.  Don't declare plain fputc as a builtin.

2001-01-01  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* loop.c (add_label_notes): Increment the label usage count when
	a note is added to an insn which refers to a CODE_LABEL.
	* gcse.c (add_label_notes): Likewise.

2001-01-01  Andreas Jaeger  <aj@suse.de>

	* loop.c (scan_loop): Use xmalloc to allocate movables.

2001-01-01  Alexandre Oliva  <aoliva@redhat.com>

	* tm.texi (REGISTER_MOVE_COST): Add a mode argument.
	* reload.c (REGISTER_MOVE_COST): Likewise.  Adjust all callers.
	* reload1.c (REGISTER_MOVE_COST): Likewise.
	* regclass.c (REGISTER_MOVE_COST): Likewise.
	(move_cost, may_move_in_cost, may_move_out_cost): Add mode
	dimension.  Adjust all users.
	(init_reg_sets_1): Iterate on all modes.
	* config/1750a/1750a.h (REGISTER_MOVE_COST): Adjust.
	* config/a29k/a29k.h (REGISTER_MOVE_COST): Adjust.
	* config/alpha/alpha.h (REGISTER_MOVE_COST): Adjust.
	* config/arc/arc.h (REGISTER_MOVE_COST): Adjust.
	* config/arm/arm.h (REGISTER_MOVE_COST): Adjust.
	* config/avr/avr.h (REGISTER_MOVE_COST): Adjust.
	* config/c4x/c4x.h (REGISTER_MOVE_COST): Adjust.
	* config/d30v/d30v.h (REGISTER_MOVE_COST): Adjust.
	* config/dsp16xx/dsp16xx.h (REGISTER_MOVE_COST): Adjust.
	* config/h8300/h8300.h (REGISTER_MOVE_COST): Adjust.
	* config/i386/i386.h (REGISTER_MOVE_COST): Adjust.
	* config/ia64/ia64.h (REGISTER_MOVE_COST): Adjust.
	* config/m32r/m32r.h (REGISTER_MOVE_COST): Adjust.
	* config/m68hc11/m68hc11.h (REGISTER_MOVE_COST): Adjust.
	* config/m68k/m68k.h (REGISTER_MOVE_COST): Adjust.
	* config/mcore/mcore.h (REGISTER_MOVE_COST): Adjust.
	* config/mips/mips.h (REGISTER_MOVE_COST): Adjust.
	* config/mn10200/mn10200.h (REGISTER_MOVE_COST): Adjust.
	* config/mn10300/mn10300.h (REGISTER_MOVE_COST): Adjust.
	* config/ns32k/ns32k.h (REGISTER_MOVE_COST): Adjust.
	* config/pa/pa.h (REGISTER_MOVE_COST): Adjust.
	* config/pdp11/pdp11.h (REGISTER_MOVE_COST): Adjust.
	* config/pj/pj.h (REGISTER_MOVE_COST): Adjust.
	* config/romp/romp.h (REGISTER_MOVE_COST): Adjust.
	* config/rs6000/rs6000.h (REGISTER_MOVE_COST): Adjust.
	* config/sh/sh.h (REGISTER_MOVE_COST): Adjust.
	* config/sparc/sparc.h (REGISTER_MOVE_COST): Adjust.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

	* alias.c (fixed_scalar_and_varying_struct): Adjust prototype of
	arg VARIES_P.  Call it with extra arg.
	(true_dependence): Likewise.
	* rtl.h (rtx_addr_can_trap_p): Declare.
	(rtx_varies_p, rtx_addr_varies_p, true_dependence): Update
	prototypes.
	* rtlanal.c (rtx_addr_can_trap_p): No longer static.
	(rtx_varies_p): Accept extra arg FOR_ALIAS; only disallow
	pic offset table register if it's zero.  All callers changed.
	(rtx_addr_varies_p): Accept extra arg FOR_ALIAS; all callers changed.

Mon Jan  1 07:38:33 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (convert_memory_address, case SYMBOL_REF): Copy
	STRING_POOL_ADDRESS_P.

	* config/sparc/sparc.c (input_operand): Properly test for short op.

	* config.gcc (sparc-*-elf): Include sparc/sol2.h.
	(sparc-*-rtems*): Include sparc/sol2.h and sparc/elf.h.
	(sparclite-*-elf*, sparc86x-*-elf*): Likewise.
	* config/sparc/elf.h: No longer include sol2.h.
	* config/sparc/lifeelf.h: No longer include sparc/elf.h.
	* config/sparc/rtemself.h, config/sparc/sp86x-elf.h: Likewise.

	* config/sparc/sparc.md: Test TARGET_ARCH64 instead of TARGET_PTR64.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.c (check_insn_for_bivs): Use ivs->n_regs to check array bounds.
	(find_mem_givs, record_biv, maybe_eliminate_biv): Likewise.
	(record_initial): Likewise.
	* unroll.c (copy_loop_body, loop_iterations): Likewise.
	(remap_split_bivs): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.c (loop_ivs_free): New function.
	(strength_reduce): Break out from...

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.h (struct iv): New.
	(REG_IV_TYPE, REG_IV_CLASS, REG_INFO): Modify to use 'struct iv'.
	(struct loop_ivs): Replace 'reg_iv_type', 'reg_iv_info',
	'reg_biv_class' fields with 'regs' and 'n_regs'.
	(struct ivs): Rename 'loop_iv_list' field to 'list'.
	* loop.c (loop_bivs_find, strength_reduce): Use ivs->regs array.
	* unroll.c (loop_iterations): Check array bounds with ivs->n_regs.

2000-12-31  Alexandre Oliva  <aoliva@redhat.com>

	* resource.c (mark_referenced_resources): Abort() before
	attempting to mark a pseudo register.
	(mark_set_resources): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.h (REG_IV_CLASS): New accessor macro.
	* loop.c (REG_IV_CLASS): Use it instead of reg_iv_class array.
	* unroll.c (REG_IV_CLASS): Likewise.

See ChangeLog.4 for earlier changes.