* ra-build.c (copy_insn_p, remember_move, defuse_overlap_p_1,
	live_out_1, prune_hardregs_for_mode, init_one_web_common,
	reinit_one_web, add_subweb, add_subweb_2, init_web_parts,
	record_conflict, compare_and_free_webs, init_webs_defs_uses,
	parts_to_webs_1, parts_to_webs, reset_conflicts,
	check_conflict_numbers, remember_web_was_spilled, handle_asm_insn,
	ra_build_free): Use gcc_assert and gcc_unreachable instead of abort.
	* ra-colorize.c (push_list, put_web, reset_lists, put_web_at_end,
	put_move, remove_move, combine, select_spill, colorize_one_web,
	try_recolor_web, insert_coalesced_conflicts, check_colors,
	break_precolored_alias, restore_conflicts_from_coalesce,
	sort_and_combine_web_pairs, check_uncoalesced_moves): Likewise.
	* ra-rewrite.c (spill_coalescing, slots_overlap_p, emit_loads,
	reloads_to_loads, rewrite_program2, emit_colors): Likewise.
	* ra.c (first_hard_reg, create_insn_info, find_subweb, init_ra,
	check_df): Likewise.
	* real.c (do_add, do_multiply, do_divide, do_compare, do_fix_trunc,
	real_arithmetic, real_compare, real_exponent, real_ldexp,
	real_identical, real_to_integer, real_to_integer2, real_to_decimal,
	real_to_hexadecimal, real_from_integer, ten_to_ptwo, ten_to_mptwo,
	real_digit, real_nan, real_maxval, round_for_format, real_convert,
	real_to_target, real_from_target, real_hash, encode_ieee_single,
	encode_ieee_double, encode_ieee_extended, encode_ieee_quad,
	encode_vax_f, encode_vax_d, encode_vax_g, encode_i370_single,
	encode_i370_double, encode_c4x_single, encode_c4x_extended): Likewise.
	* recog.c (validate_change, validate_replace_rtx_1, asm_operand_ok,
	extract_insn, peep2_next_insn, peep2_reg_dead_p,
	peep2_find_free_register, peephole2_optimize, store_data_bypass_p,
	if_test_bypass_p): Likewise.
	* reg-stack.c (record_label_references, get_asm_operand_n_inputs,
	stack_result, remove_regno_note, get_hard_regnum, emit_pop_insn,
	emit_swap_insn, swap_to_top, move_for_stack_reg,
	subst_stack_regs_pat, subst_asm_stack_regs, change_stack,
	compensate_edge, convert_regs_1): Likewise.
	* regclass.c (init_reg_sets, init_reg_sets_1,
	memory_move_secondary_cost): Likewise.
	* regrename.c (note_sets, clear_dead_regs, scan_rtx_reg, scan_rtx):
	Likewise.
	* reload.c (push_secondary_reload, find_valid_class, push_reload,
	operands_match_p, decompose, immune_p, find_reloads,
	find_reloads_toplev, find_reloads_address_1, subst_reloads,
	copy_replacements, refers_to_regno_for_reload_p,
	reg_overlap_mentioned_for_reload_p): Likewise.
	* reload1.c (compute_use_by_pseudos, replace_pseudos_in, reload,
	count_pseudo, find_reg, eliminate_regs, eliminate_regs_in_insn,
	verify_initial_elim_offsets, finish_spills, clear_reload_reg_in_use,
	reload_reg_free_p, reload_reg_reaches_end_p, reloads_conflict,
	choose_reload_regs, merge_assigned_reloads, emit_input_reload_insns,
	do_output_reload, fixup_abnormal_edges): Likewise.
	* reorg.c (stop_search_p, emit_delay_sequence, get_jump_flags,
	fill_slots_from_thread, relax_delay_slots): Likewise.
	* resource.c (mark_referenced_resources, mark_set_resources):
	Likewise.
	* rtl.c (copy_rtx, rtx_equal_p): Likewise.
	* rtlanal.c (insn_dependent_p, reg_overlap_mentioned_p,
	dead_or_set_p, find_reg_fusage, remove_note, replace_rtx,
	subreg_lsb_1, subreg_regno_offset, subreg_offset_representable_p,
	find_first_parameter_load, can_hoist_insn_p, hoist_update_store,
	hoist_insn_after, hoist_insn_to_edge, nonzero_bits1): Likewise.
	* rtlhooks.c (gen_lowpart_general): Likewise.
	* sbitmap.c (sbitmap_difference): Likewise.
	* sched-deps.c (add_dependence, sched_analyze_1, sched_analyze_2,
	sched_analyze, add_forward_dependence): Likewise.
	* sched-ebb.c (fix_basic_block_boundaries, schedule_ebb): Likewise.
	* sched-rgn.c (debug_regions, compute_trg_info, schedule_region,
	schedule_insns): Likewise.
	* sched-vis.c (print_pattern): Likewise.
	* sdbout.c (sdbout_symbol, sdbout_toplevel_data): Likewise.
	* simplify-rtx.c (simplify_unary_operation, simplify_binary_operation,
	simplify_const_relational_operation, simplify_ternary_operation,
	simplify_immed_subreg, simplify_subreg, simplify_gen_subreg):
	Likewise.
	* sreal.c (copy, sreal_sub, sreal_div): Likewise.
	* stmt.c (force_label_rtx, expand_goto, expand_asm_operands,
	resolve_operand_name_1, expand_return, expand_decl,
	expand_anon_union_decl, emit_case_bit_tests, expand_case): Likewise.
	* stor-layout.c (put_pending_size, smallest_mode_for_size,
	int_mode_for_mode, layout_decl, finish_builtin_struct, layout_type,
	set_sizetype, get_mode_bounds): Likewise.

From-SVN: r87244

2004-07-29  Pat Haugen  <pthaugen@us.ibm.com>

        * ra.h (single_reg_in_regclass): Declare.
        * ra.c (single_reg_in_regclass): Define.
        (first_hard_reg): New.
        (init_ra): Initialize single_reg_in_regclass.
        * ra-colorize.c (ok_class): New.
        (coalesce, aggressive_coalesce, extended_coalesce_2): Use it.

From-SVN: r85300

	* Makefile.in (GTFILES): Add $(srcdir)/reload.h.
	* gengtype.c (open_base_files): Include reload.h in ifiles.
	* reload.h (reg_equiv_memory_loc_varray): Declare.
	* reload1.c (reg_equiv_memory_loc_varray): New variable.
	(init_reload): Initialize it.
	(reload): Instead of freeing reg_equiv_memory_loc, 'grow'
	reg_equiv_memory_loc_varray to size 0.
	* ra.c (reg_alloc): Allocate reg_equiv_memory_loc by
	growing reg_equiv_memory_loc_varray to the desired size.
	* passes.c (rest_of_handle_old_regalloc): Likewise.
	* reload.c: Amend comment on calling init_reload.

From-SVN: r82050

	* basic-block.h (life_analysis, delete_noop_moves):
	Update prototypes.
	* bt-load.c (branch_target_load_optimize): Don't take the
	insns stream as an argument.  Update the life_analysis calls.
	* combine.c (combine_instructions): Update delete_noop_moves
	calls.
	* flow.c (notice_stack_pointer_modification): Don't take the
	insns stream as an argument.  Work on the flow graph.
	(life_analysis): Likewise.
	(delete_noop_moves): Likewise.
	* passes.c (rest_of_handle_stack_regs): Update reg_to_stack call.
	(rest_of_handle_life): Update life_analysis call.
	(rest_of_compilation): Likewise, and also update
	branch_target_load_optimize call.
	* ra.c (reg_alloc): Update life_analysis call.
	* reg-stack.c (reg_to_stack): Likewise.  Also, don't take
	the insns stream as an argument.
	* regrename.c (copyprop_hardreg_forward): Update delete_noop_moves
	call.
	* rtl.c (branch_target_load_optimize, reg_to_stack): Update
	prototypes.
	* value-profile.c (branch_prob): Update life_analysis call.
	* web.c (web_main): Work on the CFG, not on the insns stream.

	* config/ip2k/ip2k.c (ip2k_reorg): Update life_analysis calls.
	* config/m68hc11/m68hc11.c (m68hc11_reorg): Likewise.
	* config/sh/sh.c (sh_output_mi_thunk): Likewise.

From-SVN: r81873

        * toplev.c (dump_file_tbl): Rename from dump_file.
        * bb-reorder.c, bt-load.c, cfgcleanup.c, cfglayout.c, cfgloopanal.c,
        cfgloopmanip.c, cfgrtl.c, config/arm/arm.c, config/frv/frv.c,
        config/i386/i386.c, config/ia64/ia64.c, config/mips/mips.c,
        config/sh/sh.c, cse.c, flow.c, ifcvt.c, loop-iv.c, loop-unroll.c,
        loop-unswitch.c, output.h, predict.c, profile.c, ra-build.c,
        ra-colorize.c, ra-debug.c, ra-rewrite.c, ra.c, regrename.c, reload1.c,
        toplev.c, tracer.c, value-prof.c, var-tracking.c, web.c:
        s/rtl_dump_file/dump_file/g.

From-SVN: r78399

	* df.c, df.h, ra-build.c, ra-rewrite.c, ra.c, web.c: Replace
	df_analyse with df_analyze.

From-SVN: r78363

	gcc/
	* alloc-pool.h, c-convert.c, c-lang.c, c-tree.h,
	caller-save.c, df.h, genconfig.c, global.c, lcm.c,
	ra-rewrite.c, ra.c, regclass.c, regs.h, resource.c,
	sched-rgn.c, config/arm/aof.h, config/arm/cirrus.md,
	config/arm/fpa.md, config/arm/iwmmxt.md,
	config/arm/netbsd-elf.h, config/arm/netbsd.h,
	config/m68hc11/m68hc11.md, config/mips/iris5.h,
	config/mn10300/mn10300.md, config/rs6000/altivec.md,
	config/sparc/netbsd-elf.h: Update copyright.

	cp/
	* error.c, search.c: Update copyright.

	java/
	* typeck.c: Update copyright.

From-SVN: r77265

	* alias.c (record_set): Use hard_regno_nregs.
	* bt-load.c (find_btr_reference, note_btr_set): Likewise.
	* builtins.c (apply_args_size): Likewise.
	* caller-save.c (setup_save_areas, save_call_clobbered_regs,
	mark_set_regs, add_stored_regs, mark_referenced_regs,
	insert_restore, insert_save, insert_one_insn): Likewise.
	* cfgcleanup.c: Include regs.h
	(mark_effect, mentions_nonequal_regs): Likewise.
	* cfgrtl.c (mark_killed_regs): Likewise
	* combine.c (update_table_tick, record_value_for_reg,
	record_dead_and_set_regs, get_last_value_validate, use_crosses_set_p,
	reg_dead_at_p_1, reg_dead_at_p, mark_used_regs_combine, move_deaths,
	reg_bitfield_target_p, distribute_notes): Likewise.
	* cse.c (mention_regs, insert, invalidate, invalidate_for_call,
	exp_equiv_p, cse_insn): Likewise.
	* cselib.c (cselib_lookup): Likewise.
	(cselib_invalidate_regno, cselib_record_set): Likewise.
	* df.c (df_ref_record): Likewise.
	* dwarf2out.c (reg_loc_descriptor, multiple_reg_loc_descriptor):
	Likewise.
	* flow.c (mark_reg, insn_dead_p, mark_set_1, mark_used_reg,
	count_or_remove_death_notes_bb): Likewise.
	* function.c (aggregate_value_p, keep_stack_depressed): Likewise.
	* gloval.c (global_alloc, find_reg, mark_reg_store, mark_reg_conflicts,
	mark_reg_death, set_preference, reg_becomes_live, reg_dies): Likewise.
	* integrate.c (mark_stores): Likewise.
	* jump.c (delete_prior_computation): Likewise.
	* lcm.c (reg_dies, reg_becomes_live): Likewise.
	* local-alloc.c (combine_regs, find_free_reg, post_mark_life): Likewise.
	* loop.c (LOOP_REGNO_NREGS): Likewise.
	* postreload.c (reload_combine, reload_combine_note_store,
	reload_combine_note_use, reload_cse_move2add, move2add_note_store): Likewise.
	* ra-colorize.c (combine, color_usable_p, get_free_reg,
	calculate_dont_begin, calculate_dont_begin, colorize_one_web,
	try_recolor_web, insert_coalesced_conflicts, check_colors,
	break_precolored_alias): Likewise.
	* ra-debug.c: Include regs.h
	(ra_print_rtx_object): Likewise.
	* ra-rewrite (choose_spill_colors): Likewise.
	(spill_same_color_p, update_spill_colors, spill_is_free): Likewise.
	* ra.c (init_ra): Likewise.
	* recog.c (reg_fits_class_p, peep2_reg_dead_p,
	peep2_find_free_register): Likewise.
	* reg-stack.c (subst_stack_regs_pat, convert_regs_exit): Likewise.
	* regclass.c (hard_regno_nregs): New array.
	(init_reg_modes_once): Initialize it.
	(choose_hard_reg_mode): Use it.
	(record_reg_classes): Likewise.
	* regmove.c (mark_flags_life_zones): Likewise.
	* regrename.c (note_sets, clear_dead_regs, regrename_optimize,
	scan_rtx_reg, dump_def_use_chain, kill_value, set_value_regno,
	copy_value, maybe_mode_change, find_oldest_value_reg,
	copyprop_hardreg_forward_1):
	* regs.h (hard_regno_nregs): Declare.
	* realod.c (reload_inner_reg_of_subreg): Use it.
	(push_reload, combine_reloads, find_dummy_reload,
	hard_reg_set_here_p, operands_match_p, decompose, find_reloads,
	refers_to_regno_for_reload_p, find_equiv_reg, regno_clobbered_p,
	reload_adjust_reg_for_mode): Likewise.
	* reload1.c (compute_use_by_pseudos, count_pseudo,
	count_spilled_pseudo, find_reg, find_reload_regs, mark_home_live,
	spill_hard_reg, forget_old_reloads_1, mark_reload_reg_in_use,
	clear_reload_reg_in_use, reload_reg_free_for_value_p, free_for_value_p
	allocate_reload_reg, choose_reload_regs, emit_reload_insns,
	delete_output_reload): Likewise.
	* resource.c (update_live_status, mark_referenced_resources,
	mark_set_resources, mark_target_live_regs): Likewise.
	* rtlanal.c:  Include regs.h
	(refers_to_regno_p, reg_overlap_mentioned_p, dead_or_set_p,
	dead_or_set_regno_p, find_regno_note, find_reg_fusage,
	subreg_regno_offset, subreg_offset_representable_p,
	hoist_test_store): Likewise.
	* sched-deps.c (sched_analyze_1, sched_analyze_2): Likewise.
	* sched-rgn.c (check_live_1, update_live_1): Likewise.
	* stmt.c: Include regs.h
	(decl_conflicts_with_clobbers_p): Likewise.
	* varasm.c (make_decl_rtl): Likewise.
	* Makefile.in (cfgcleanup.o, rtlanal.o, ra-debug.o): Add regs.h dependnecy.

From-SVN: r77088

	* flow.c (EXIT_IGNORE_STACK): Move to ...
	* defaults.h (EXIT_IGNORE_STACK): ... here.
	* dojump.c (clear_pending_stack_adjust): Don't use #ifdef
	EXIT_IGNORE_STACK.
	* function.c (expand_function_end): Likewise.
	* global.c (global_alloc): Likewise.
	* ra.c (init_ra): Likewise.
	* reload1.c (init_elim_table): Likewise.
	* reorg.c (fill_simple_delay_slots): Likewise.
	* resource.c (init_resource_info): Likewise.
	* doc/tm.texi (EXIT_IGNORE_STACK): Document that the default
	is 0.

From-SVN: r74654

2003-12-11  Steven Bosscher  <steven@gcc.gnu.org>

	* basic-block.h (BLOCK_HEAD, BLOCK_END): Remove.
	(BLOCK_HEAD_TREE, BLOCK_END_TREE): Remove.
	(basic_block_def): Rename `head' to `head_' and `end' to `end_'.
	(BB_HEAD, BB_END): New accessor macros for the `head_' and `end_'
	fields of a basic block.
	* bb-reorder.c, bt-load.c, caller-save.c, cfg.c, cfganal.c,
	cfgbuild.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgloopanal.c,
	cfgloopmanip.c, cfgrtl.c, combine.c, conflict.c, df.c, emit-rtl.c,
	final.c, flow.c, function.c, gcse.c, global.c, graph.c,
	haifa-sched.c, ifcvt.c, lcm.c, local-alloc.c, loop-unswitch.c,
	loop.c, postreload.c, predict.c, profile.c, ra-build.c, ra-debug.c,
	ra-rewrite.c, ra.c, recog.c, reg-stack.c, regclass.c, regmove.c,
	regrename.c, reload1.c, resource.c, sched-ebb.c, sched-rgn.c,
	sibcall.c, tracer.c, config/frv/frv.c, config/i386/i386.c,
	config/ia64/ia64.c: Use the BB_HEAD and BB_END macros instead of
	accessing the `head' and `end' fields of a basic block directly.

	* gengtype.c: Add missing piece from earlier patch.  Dunno what
	I was thinking...

From-SVN: r74520

2003-09-14  Steven Bosscher  <steven@gcc.gnu.org>

	* ra.c: Convert to ISO C90 prototypes.
	* ra-build.c: Likewise.
	* ra-colorize.c: Likewise.
	* ra-debug.c: Likewise.
	* ra-rewrite.c: Likewise.

From-SVN: r71379

	* alias.c alloc-pool.c bitmap.c bitmap.h bt-load.c builtins.c
	c-common.c c-decl.c c-incpath.c c-lex.c c-opts.c c-parse.in
	c-pragma.c c-typeck.c calls.c cfg.c cfganal.c cfgloop.c cfgrtl.c
	collect2.c combine.c conflict.c coverage.c cppexp.c cppfiles.c
	cpphash.c cppinit.c cpplex.c cpplib.c cppmacro.c cppspec.c
	cpptrad.c cse.c cselib.c dbxout.c defaults.h df.c dominance.c
	dwarf2out.c dwarfout.c emit-rtl.c except.c expmed.c expr.c final.c
	fix-header.c flow.c fold-const.c function.c gcc.c gccspec.c gcov.c
	gcse.c genattr.c genattrtab.c genautomata.c genconditions.c
	genemit.c genextract.c genoutput.c genrecog.c gensupport.c
	ggc-page.c ggc-simple.c global.c graph.c haifa-sched.c hashtable.c
	integrate.c jump.c langhooks.c lcm.c line-map.c local-alloc.c
	loop.c mips-tdump.c mips-tfile.c mkdeps.c optabs.c params.c
	postreload.c prefix.c print-tree.c protoize.c ra-build.c
	ra-colorize.c ra-rewrite.c ra.c recog.c reg-stack.c regclass.c
	regmove.c regrename.c reload.c reload1.c reorg.c resource.c
	sbitmap.c sched-deps.c sched-rgn.c sched-vis.c sdbout.c
	simplify-rtx.c ssa-ccp.c ssa.c stmt.c stor-layout.c timevar.c
	tlink.c toplev.c tree-dump.c tree.c unroll.c unwind-dw2-fde.c
	varasm.c varray.c vmsdbgout.c xcoffout.c: Remove unnecessary
	casts.

From-SVN: r69587

        * df.h (enum df_ref_flags.DF_REF_STRIPPED): New.
        (DF_FOR_REGALLOC): New.
        * df.c (df_ref_record): Set DF_REF_STRIPPED.
        (read_modify_subreg_p): Simplify.
        (df_def_record_1, df_uses_record): Set DF_REF_MODE_CHANGE more often.
        Use DF_FOR_REGALLOC.
        * ra.h (struct web): New member subreg_stripped.
        (invalid_mode_change_regs): Declare.
        * ra.c (invalid_mode_change_regs): New.
        (init_ra): Initialize it.
        * ra-build.c (init_one_web_common, remember_web_was_spilled): Use it.
        Use CANNOT_CHANGE_MODE_CLASS as ifdef guard.
        (reinit_one_web, parts_to_web_1): Deal with subreg_stripped.
        * ra-colorize.c (colorize_one_web): Use invalid_mode_change_regs.
        Use CANNOT_CHANGE_MODE_CLASS as ifdef guard.

From-SVN: r63952

	* ifcvt.c: Fix comment typos.
	* lcm.c: Likewise.
	* libgcc2.c: Likewise.
	* local-alloc.c: Likewise.
	* loop.c: Likewise.
	* predict.c: Likewise.
	* ra-build.c: Likewise.
	* ra.c: Likewise.
	* ra-colorize.c: Likewise.
	* ra.h: Likewise.
	* ra-rewrite.c: Likewise.
	* regmove.c: Likewise.
	* reload.h: Likewise.
	* rtlanal.c: Likewise.
	* toplev.c: Likewise.
	* tree.h: Likewise.
	* unwind-dw2-fde-glibc.c: Likewise.
	* vmsdbgout.c: Likewise.

From-SVN: r61421

	* output.h: Fix comment typos.
	* predict.c: Likewise.
	* print-tree.c: Likewise.
	* profile.c: Likewise.
	* ra-build.c: Likewise.
	* ra-colorize.c: Likewise.
	* ra-debug.c: Likewise.
	* ra-rewrite.c: Likewise.
	* ra.c: Likewise.
	* ra.h: Likewise.
	* real.c: Likewise.
	* recog.c: Likewise.
	* reg-stack.c: Likewise.
	* regclass.c: Likewise.

From-SVN: r60502

From-SVN: r60174

	* c-opts.c (lang_flags): Const-ify.
	* ra-build.c (undef_table): Likewise.
	* ra.c (eliminables): Likewise.

From-SVN: r56271

	* defaults.h (obstack_chunk_alloc, obstack_chunk_free):
	Default definition.
	* gcse.c: Don't define obstack_chunk_free.
	* collect2.c, conflict.c, df.c, diagnostic.c, fix-header.c,
	flow.c, gcc.c, genattrtab.c, genautomata.c, genflags.c, gensupport.c,
	integrate.c, loop.c, ra.c, read-rtl.c, regrename.c, reload1.c,
	reorg.c, tlink.c, tree.c, config/arm/arm.c, objc/objc-act.c:
	Don't define obstack macros.
cp:
	* class.c, method.c, pt.c, search.c: Similarly.

From-SVN: r55665

2002-07-15  Michael Matz  <matz@suse.de>,
            Daniel Berlin  <dberlin@dberlin.org>,
	    Denis Chertykov  <denisc@overta.ru>

	Add a new register allocator.

	* ra.c: New file.
	* ra.h: New file.
	* ra-build.c: New file.
	* ra-colorize.c: New file.
	* ra-debug.c: New file.
	* ra-rewrite.c: New file.

	* Makefile.in (ra.o, ra-build.o, ra-colorize.o, ra-debug.o,
	(ra-rewrite.o): New .o files for libbackend.a.
	(GTFILES): Add basic-block.h.

	* toplev.c (flag_new_regalloc): New.
	(f_options): New option "new-ra".
	(rest_of_compilation): Call initialize_uninitialized_subregs()
	only for the old allocator.  If flag_new_regalloc is set, call
	new allocator, instead of local_alloc(), global_alloc() and
	friends.

	* doc/invoke.texi: Document -fnew-ra.
	* basic-block.h (FOR_ALL_BB): New.
	* config/rs6000/rs6000.c (print_operand): Write small constants
	as @l+80.

	* df.c (read_modify_subreg_p): Narrow down cases for a rmw subreg.
	(df_reg_table_realloc): Make size at least as large as max_reg_num().
	(df_insn_table_realloc): Size argument now is absolute, not relative.
	Changed all callers.

	* gengtype.c (main): Add the pseudo-type "HARD_REG_SET".
	* regclass.c (reg_scan_mark_refs): Ignore NULL rtx's.

	2002-06-20  Michael Matz  <matz@suse.de>

	* df.h (struct ref.id): Make unsigned.
	* df.c (df_bb_reg_def_chain_create): Remove unsigned cast.

	2002-06-13  Michael Matz  <matz@suse.de>

	* df.h (DF_REF_MODE_CHANGE): New flag.
	* df.c (df_def_record_1, df_uses_record): Set this flag for refs
	involving subregs with invalid mode changes, when
	CLASS_CANNOT_CHANGE_MODE is defined.

	2002-05-07  Michael Matz  <matz@suse.de>

	* reload1.c (fixup_abnormal_edges): Don't insert on NULL edge.

	2002-05-03  Michael Matz  <matz@suse.de>

	* sbitmap.c (sbitmap_difference): Accept sbitmaps of different size.

	Sat Feb  2 18:58:07 2002  Denis Chertykov  <denisc@overta.ru>

	* regclass.c (regclass): Work with all regs which have sets or
	refs.
	(reg_scan_mark_refs): Count regs inside (clobber ...).

	2002-01-04  Michael Matz  <matzmich@cs.tu-berlin.de>

	* df.c (df_ref_record): Correctly calculate SUBREGs of hardregs.
	(df_bb_reg_def_chain_create, df_bb_reg_use_chain_create): Only
	add new refs.
	(df_bb_refs_update): Don't clear insns_modified here, ...
	(df_analyse): ... but here.

	* sbitmap.c (dump_sbitmap_file): New.
	(debug_sbitmap): Use it.

	* sbitmap.h (dump_sbitmap_file): Add prototype.

	2001-08-07  Daniel Berlin  <dan@cgsoftware.com>

	* df.c (df_insn_modify): Grow the UID table if necessary, rather
	than assume all emits go through df_insns_modify.

	2001-07-26  Daniel Berlin  <dan@cgsoftware.com>

	* regclass.c (reg_scan_mark_refs): When we increase REG_N_SETS,
	increase REG_N_REFS (like flow does), so that regclass doesn't
	think a reg is useless, and thus, not calculate a class, when it
	really should have.

	2001-01-28  Daniel Berlin  <dberlin@redhat.com>

	* sbitmap.h (EXECUTE_IF_SET_IN_SBITMAP_REV): New macro, needed for
	dataflow analysis.

From-SVN: r55458