* xregex.h: New file to support libiberty regex.
* xregex2.h: Ditto.

From-SVN: r43913

	* recog.c (offsettable_address_p): Handle LO_SUM case.
	* config/mips/mips.c (double_memory_operand): Use adjust_address_nv
	instead of plus_constant.

From-SVN: r43912

	* reload1.c (merge_assigned_reloads): After a RELOAD_OTHER merge,
	fix setting of the reloads of that reload to RELOAD_FOR_OTHER_ADDRESS.

From-SVN: r43911

2001-07-10  Toon Moene  <toon@moene.indiv.nluug.nl>

	* libI77/fio.h: Revert type of url from off_t to int.
	* libI77/dfe.c (c_dfe): Cast offset expression in FSEEK to off_t.
	* libI77/due.c (c_due): Ditto.  (e_rdue): Ditto.
	* libI77/ftell_.c (G77_ftell_0): Cast result of FTELL to integer.
	(G77_fseek_0): Cast offset argument of FSEEK to off_t.

From-SVN: r43910

	* config/rs6000/rs6000.c (print_operand, case 'L', 'Y', 'Z'): Use
	adjust_address_nv instead of plus_constant.

From-SVN: r43909

	* Makefile.in (toplev.o, sdbout.o, dbxout.o, dwarfout.o,
	dwarf2out.o): Depend on debug.h, wrap long lines.
	* dbxout.c: Include debug.h.
	(dbx_debug_hooks): New.
	(dbxout_init): Make static, take just 2 args.
	(dbxout_finish): Make static.
	* dbxout.h (dbxout_init, dbxout_finish): Delete.
	* debug.c: New file.
	* debug.h: New file.
	* dwarf2out.c: Include debug.h.
	(dwarf2_debug_hooks): New.
	(dwarf2out_init): Make static.
	(dwarf2out_finish): Make static, take 2 args.
	* dwarf2out.h (dwarf2out_init, dwarf2out_finish): Delete.
	* dwarfout.c: Include debug.h.
	(dwarf_debug_hooks): New.
	(dwarfout_init): Make static.
	(dwarfout_finish): Make static, take 2 args.
	* dwarfout.h (dwarfout_init, dwarfout_finish): Delete.
	* sdbout.c: Include debug.h.
	(sdb_debug_hooks): New.
	(sdbout_init): Make static, take 2 args.
	* sdbout.h (sdbout_init): Delete.
	* toplev.c: Include debug.h.
	(debug_hooks): New.
	(compile_file): Set deubg_hooks based on command line options.
	Use the hooks unconditionally rather than conditional compilation.

From-SVN: r43908

From-SVN: r43907

        * ssa-ccp.c (first_phi_node): Remove.  Replace uses with calls to
        first_insn_after_basic_block_note instead.

        * df.c (df_bb_refs_unlink): #if 0 out for now.

        * ssa.h: Add prototype for ssa_const_prop
        * ssa-ccp.c: Add prototype for ssa_fast_dce and mark_references
        (ssa_ccp_substitute_constants): Fix signed vs unsigned comparison
        (ssa_fast_dce): Remove unused variable

From-SVN: r43906

        * diagnostic.c (finish_diagnostic): Rename to
        diagnostic_finish. Make it take an 'output_buffer *'.  Adjust
        calls thourghout.

From-SVN: r43905

        * dwarf2out.c (dwarf2out_line): Emit -dA comment even when we have
        .loc support.

From-SVN: r43904

        * collect2.c (main): Set COLLECT_NO_DEMANGLE for subprocesses.
        (dump_file): Only pad the demangled name with spaces if the
        mangled name was padded with spaces.

From-SVN: r43903

From-SVN: r43902

        * lib/g++-dg.exp: Load file-format and target-supports like gcc.
        (g++-dg-prune): Call prune_gcc_output.
        * prune.exp: New file for prune_gcc_output.
        * lib/g++.exp, lib/gcc.exp: Load it.

From-SVN: r43901

        * semantics.c (cp_expand_stmt): Fix for null
        current_function_return_value.

From-SVN: r43900

        * acinclude.m4: Don't AC_REPLACE_MATHFUNCS expf and atan2f.
        * aclocal.m4: Regenerate.
        * configure: Same.

From-SVN: r43898

	* expr.c (expand_expr, case COMPONENT_REF): Don't force using bitfield
	extraction if no direct load if either EXPAND_CONST_ADDRESS or
	EXPAND_INITIALIZER.

From-SVN: r43897

emit-rtl.c (adjust_address, [...]): Change criteria for whether can put offset inside LO_SUM to check mode alignment...

	* emit-rtl.c (adjust_address, adjust_address_nv): Change criteria for
	whether can put offset inside LO_SUM to check mode alignment, not size.

From-SVN: r43896

From-SVN: r43895

2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* regmove.c (replace_in_call_usage): Fix warnings.
	* sched-deps.c (add_dependence): Fix warnings.
	* simplify-rtx.c (simplify_subreg): Likewise.
	Return NULL_RTX instead of NULL.

	* reg-stack.c (emit_swap_insn): Eliminate warnings.
	(subst_asm_stack_regs): Likewise.

	* combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid
	warnings.

	* dwarf2out.c (output_call_frame_info): Declare i as int.
	(build_abbrev_table): Declare n_alloc as int.
	(dwarf2out_finish): Initialize die.
	* except.c: Declare sjlj_funcdef_number as unsigned.
	(connect_post_landing_pads): Declare j as unsigned.
	(convert_to_eh_region_ranges): Initialize call_site.
	(output_function_exception_table): Initialize tt_format_size.
	* expr.c (move_by_pieces_1): Initialize to1.
	(store_constructor): Initialize minelt and maxelt.
	* flow.c (mark_regs_live_at_end): Declare i as unsigned.
	* function.c (instantiate_decls): Avoid signed/unsigned warning.

	* c-decl.c (combine_parm_decls): Unused, remove.
	* c-tree.h: Remove prototype for combine_parm_decls.

	* reload.c (push_reload): Fix warning.
	(regno_clobbered_p): Likewise.
	* reload1.c (replace_pseudos_in_call_usage): Likewise.
	(reload_combine): Likewise.

	* bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings.
	* bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix
	warnings.
	* bitmap.c (bitmap_operation): Change user.
	* bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise.

For cp/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* call.c (build_op_delete_call): Initialize fn.
	(convert_like_real): Delete conditional.
	(joust): Initialize *w and *l.
	* class.c: Add prototype for binfo_ctor_vtable.
	(get_primary_binfo): Initialize result.
	* init.c (build_java_class_ref): Initialize name.

	* typeck.c (unary_complex_lvalue): Do not duplicate the
	argument to modify, pre-, or post-increment when used as an
	lvalue and when the argument has side-effects.

For ch/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* ch-tree.h: Remove prototype for combine_parm_decls, unused
	function.

From-SVN: r43894

2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>
	* regmove.c (replace_in_call_usage): Fix warnings.
	* sched-deps.c (add_dependence): Fix warnings.
	* simplify-rtx.c (simplify_subreg): Likewise.
	Return NULL_RTX instead of NULL.

	* reg-stack.c (emit_swap_insn): Eliminate warnings.
	(subst_asm_stack_regs): Likewise.

	* combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid
	warnings.

	* dwarf2out.c (output_call_frame_info): Declare i as int.
	(build_abbrev_table): Declare n_alloc as int.
	(dwarf2out_finish): Initialize die.
	* except.c: Declare sjlj_funcdef_number as unsigned.
	(connect_post_landing_pads): Declare j as unsigned.
	(convert_to_eh_region_ranges): Initialize call_site.
	(output_function_exception_table): Initialize tt_format_size.
	* expr.c (move_by_pieces_1): Initialize to1.
	(store_constructor): Initialize minelt and maxelt.
	* flow.c (mark_regs_live_at_end): Declare i as unsigned.
	* function.c (instantiate_decls): Avoid signed/unsigned warning.

	* c-decl.c (combine_parm_decls): Unused, remove.
	* c-tree.h: Remove prototype for combine_parm_decls.

	* reload.c (push_reload): Fix warning.
	(regno_clobbered_p): Likewise.
	* reload1.c (replace_pseudos_in_call_usage): Likewise.
	(reload_combine): Likewise.

	* bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings.
	* bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix
	warnings.
	* bitmap.c (bitmap_operation): Change user.
	* bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise.
For cp/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* call.c (build_op_delete_call): Initialize fn.
	(convert_like_real): Delete conditional.
	(joust): Initialize *w and *l.
	* class.c: Add prototype for binfo_ctor_vtable.
	(get_primary_binfo): Initialize result.
	* init.c (build_java_class_ref): Initialize name.

	* typeck.c (unary_complex_lvalue): Do not duplicate the
	argument to modify, pre-, or post-increment when used as an
	lvalue and when the argument has side-effects.

For ch/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* ch-tree.h: Remove prototype for combine_parm_decls, unused
	function.

From-SVN: r43893

2001-07-10  James Smaby  <jsmaby@virgo.umeche.maine.edu>

	* intdoc.in: Fix the definition of COMPLEX ABS.
	Remove `the' where inappropriate.
	* intdoc.texi: Rebuilt.

From-SVN: r43892

2001-07-10  Eric Christopher  <echristo@redhat.com>

	* config/mips/mips.c (override_options): Fix typo.

From-SVN: r43891

From-SVN: r43890

	* target.h (struct gcc_target): New fields init_builtins and
	expand_builtin.
	* target-def.h (TARGET_INIT_BUILTINS): New macro.
	(TARGET_EXPAND_BUILTIN): New macro.
	(TARGET_INITIALIZER): Add them.
	* builtins.c: Include target.h.
	(expand_builtin): Use targetm.expand_builtin.
	(default_init_builtins): New function.
	(default_expand_builtin): New function.
	* expr.h (default_init_builtins): Declare.
	(default_expand_builtin): Declare.
	* c-common.c (c_common_nodes_and_builtins): Use
	targetm.init_builtins.
	* defaults.h (MD_INIT_BUILTINS): Remove.
	* Makefile.in (builtins.o): Depend on target.h.

	* config/arm/arm.c (TARGET_INIT_BUILTINS): Define.
	(TARGET_EXPAND_BUILTIN): Define.
	* config/arm/arm.h (MD_INIT_BUILTINS): Remove.
	(MD_EXPAND_BUILTIN): Remove.

	* config/c4x/c4x.c (TARGET_INIT_BUILTINS): Define.
	(TARGET_EXPAND_BUILTIN): Define.
	(c4x_init_builtins): Make endlink arg a local.
	(c4x_print_operand): Fix typos in adjust_address usages.
	* config/c4x/c4x-protos.h (c4x_init_builtins): Update decl.
	* config/c4x/c4x.h (MD_INIT_BUILTINS): Remove.
	(MD_EXPAND_BUILTIN): Remove.

	* config/i386/i386.c (TARGET_INIT_BUILTINS): Define.
	(TARGET_EXPAND_BUILTIN): Define.
	(ix86_init_mmx_sse_builtins): New function, was ix86_init_builtins.
	(ix86_init_builtins): Call new function only if TARGET_MMX.
	* config/i386/i386-protos.h (ix86_init_mmx_sse_builtins): Declare.
	* config/i386/i386.h (MD_INIT_BUILTINS): Remove.
	(MD_EXPAND_BUILTIN): Remove.

	* config/ia64/ia64.c (TARGET_INIT_BUILTINS): Define.
	(TARGET_EXPAND_BUILTIN): Define.
	* config/ia64/ia64.h (MD_INIT_BUILTINS): Remove.
	(MD_EXPAND_BUILTIN): Remove.

	* doc/tm.texi: Document these changes.

From-SVN: r43888

From-SVN: r43887

2001-07-09  Diego Novillo  <dnovillo@redhat.com>

	* basic-block.h (tree_node): Forward declare if needed.
	(struct basic_block_def): Add fields 'head_tree' and 'end_tree'.
	(BLOCK_HEAD_TREE): Define.
	(BLOCK_END_TREE): Define.
	(struct loops): Rename field 'tree' to 'tree_root'.
	* flow.c (entry_exit_blocks): Add initializers for 'head_tree' and
	'end_tree'.
	(flow_loops_tree_build): Rename reference to field 'tree' to
	'tree_root'.
	(flow_loops_level_compute): Ditto.
	* predict.c (estimate_bb_frequencies): Ditto.
	* tree.h (struct tree_common): Add field 'aux'.

From-SVN: r43886

        * config/darwin.c (darwin_encode_section_info): Don't mark any
        DECL_EXTERNAL node as defined.

From-SVN: r43885

        * typeck.c (unary_complex_lvalue): Do not duplicate the
        argument to modify, pre-, or post-increment when used as an
        lvalue and when the argument has side-effects.

From-SVN: r43884

	* pa.c (pa_init_machine_status, pa_mark_machine_status,
	pa_free_machine_status, hppa_init_pic_save): Delete.
	(hppa_pic_save_rtx): New.  Use get_hard_reg_initial_val.
	(hppa_profile_hook): Use hppa_pic_save_rtx.
	* pa.h (struct machine_function, PIC_OFFSET_TABLE_SAVE_RTX,
	hppa_init_pic_save): Delete.
	(hppa_pic_save_rtx): Declare.
	* pa.md (call, call_value, sibcall, sibcall_value,
	builtin_setjmp_receiver): Use hppa_pic_save_rtx.

From-SVN: r43883

2001-07-09  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/t-h8300 (LIB1ASMFUNCS): Add _floatdisf and _fixsfdi.
	* config/mn10200/t-mn10200 (LIB1ASMFUNCS): Likewise.

From-SVN: r43882

2001-07-09  Phil Edwards  <pme@sources.redhat.com>

	* docs/html/configopts.html:  Fix thinko.
	* docs/html/27_io/howto.html:  Fix thinko and HTML markup.
	* include/bits/stl_iterator.h:  Fix typo.

From-SVN: r43878

From-SVN: r43877

	* output.h: Add declaration of final_forward_branch_p.

	* config/i386/i386.c (output_fix_trunc): Remove unused variable.

From-SVN: r43876

	* varray.c: Include errors.h for internal_error and trim_filename
	declarations.

	* Makefile.in (varray.o): Add errors.h.

From-SVN: r43875

2001-07-09  Toon Moene  <toon@moene.indiv.nluug.nl>

	* expr.h: Adjust prototypes for have_add2_insn, have_sub2_insn.
	* optabs.c (have_add2_insn): Check whether the add insn chosen
	really accepts the operands.  (have_sub2_insn): Ditto for sub insn.
	* reload1.c (reload_cse_move2add): Adjust calls of have_add2_insn.

From-SVN: r43874

From-SVN: r43873

	* Makefile.in (OBJS): Add ssa-ccp.o
	(ssa-ccp.o): Add dependencies.
	* toplev.c (DFI_ssa_ccp): New dump file enum.
	(dump_file): Add entry for dumping after SSA CCP.
	(flag_ssa_ccp): New flag variable.
	(f_options): Add -fssa-ccp.
	(rest_of_compilation): Run SSA CCP if requested.
	* timevar.def (TV_SSA_CCP): New timevar.
	* ssa.c (mark_phi_and_copy_regs): Handle deleted PHI nodes.
	* doc/gcc.texi (Passes): Add documentation for SSA CCP pass.
	Fix minor typo in SSA DCE documentation.
	* doc/invoke.texi: Add documentation for new flag -fssa-ccp.
	Add documentation for new dump option.  Renumber dump files
	appropriately.

	* po/POTFILES.in: Add ssa-ccp.c

From-SVN: r43872

	* emit-rtl.c (gen_highpart_mode): New.
	* rtl.h (gen_highpart_mode): Declare.
	* sparc.md (insn splitters): Use gen_highpart_mode, whenever the
	operand can be VOIDmode constant.

From-SVN: r43869

2001-07-09  Phil Edwards  <pme@sources.redhat.com>

	* docs/html/explanations.html:  New file.
	* docs/html/configopts.html:  Link to it to provide more notes
	on cstdio.  Minor markup and spacing fixes.
	* docs/html/27_io/howto.html:  Talk about sync_with_stdio.

From-SVN: r43868

	* flow.c (redirect_edge_and_branch_force): New.
	(can_fallthru): Ensure that basic blocks are succeeding.
	(try_optimize_cfg): Do not delete basic block if it is the last one.

	* flow.c (try_redirect_by_replacing_jump): Do not remove
	jumps with side effects, unlink chain on fallthru edge;
	set block for new jump instruction; avoid basic block to
	over by line number note.

	* flow.c (try_simplify_condjump): Verify that the condjump
	is not always falling trought.

	Re-install patch:
	* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.

	* flow.c (forwarder_block_p): Fix for fallthru blocks.
	(try_redirect_by_replacing_jump): Update properly the count
	and frequency information.

From-SVN: r43867