* cse.c (find_comparison_args): Update documentation.  Fix
	mishandling of COMPARE operations.

	* tree.def (ABS_EXPR): Add documentation.
	* fold-const.c (fold): Improve folding of ABS_EXPRs.

From-SVN: r40630

From-SVN: r40300

	* config/xm-lynx.h, config/xm-std32.h, config/a29k/xm-a29k.h,
	config/a29k/xm-unix.h, config/alpha/xm-alpha.h,
	config/arc/xm-arc.h, config/arm/xm-arm.h, config/c4x/xm-c4x.h,
	config/clipper/xm-clix.h, config/convex/xm-convex.h,
	config/d30v/xm-d30v.h, config/dsp16xx/xm-dsp16xx.h,
	config/elxsi/xm-elxsi.h, config/fr30/xm-fr30.h,
	config/h8300/xm-h8300.h, config/i370/xm-i370.h,
	config/i370/xm-linux.h, config/i370/xm-mvs.h,
	config/i370/xm-oe.h, config/i386/xm-aix.h,
	config/i386/xm-i386.h, config/i386/xm-osf.h,
	config/i860/xm-i860.h, config/i960/xm-i960.h,
	config/ia64/xm-ia64.h, config/m32r/xm-m32r.h,
	config/m68k/xm-m68k.h, config/m88k/xm-m88k.h,
	config/mcore/xm-mcore.h, config/mips/xm-mips.h,
	config/mn10200/xm-mn10200.h, config/mn10300/xm-mn10300.h,
	config/ns32k/xm-ns32k.h, config/pa/xm-linux.h,
	config/pa/xm-pa.h, config/pa/xm-pa64hpux.h,
	config/pa/xm-pahpux.h, config/pa/xm-papro.h,
	config/pj/xm-pj.h, config/romp/xm-romp.h,
	config/rs6000/xm-beos.h, config/rs6000/xm-rs6000.h,
	config/rs6000/xm-sysv4.h, config/sh/xm-sh.h,
	config/sparc/xm-sparc.h, config/sparc/xm-sysv4.h,
	config/v850/xm-v850.h, config/vax/xm-vax.h,
	config/vax/xm-vms.h, config/we32k/xm-we32k.h:
	Do not define TRUE or FALSE.

	* config/i386/xm-aix.h, config/i386/xm-osf.h: Delete; made
	empty by above change.
	* config.gcc: Remove references to these files.

	* configure.in: Detect stdbool.h.
	* configure, config.in: Regenerate.
	* system.h: Include stddef.h here if available.  Set
	HAVE__BOOL based on GCC_VERSION and __STDC_VERSION__.  Then
	set up a sensible boolean type at the very end.

	* combine.c, cse.c, expr.c, fold-const.c, gensupport.c,
	f/com.c, config/mcore/mcore.c:
	Rename variables named 'true' and/or 'false'.

	* hash.h: Delete 'boolean' typedef and related #undefs.
	* f/proj.h: Delete 'bool' type.  Don't include stddef.h here.

	* function.c, ggc-common.c, hash.h, hash.c, tlink.c, cp/decl.c,
	java/class.c, java/decl.c, java/java-tree.h:
	Replace all uses of 'boolean' with 'bool'.

From-SVN: r40176

	* cse.c (new_label_ref): New variable.
	(insert): Set it instead of recorded_label_ref.
	(cse_basic_block): Set recorded_label_ref if new_label_ref use, has
	CODE_LABEL for this function, and not already in REG_LABEL note.

From-SVN: r39768

	* cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to
	conditionals.
	* defaults.h (PIC_OFFSET_TABLE_REGNUM): Default to INVALID_REGNUM.
	* emit-rtl.c (init_emit_once): Convert ifdefs to conditionals.
	* flow.c (mark_regs_live_at_end): Likewise.
	(calculate_global_regs_live): Likewise.
	* gcse.c (compute_hash_table): Likewise.
	(compute_kill_rd): Likewise.
	* resource.c (mark_target_live_regs): Likewise.
	* rtl.h (INVALID_REGNUM): New macro.

From-SVN: r39643

From-SVN: r39490

calls.c (emit_library_call_value_1): Add USEs and CLOBBERs to function usage for arguments passed by reference.

* 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 (find_related_toplev): Find uses in function usage.
(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.

From-SVN: r38964

	* 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.

From-SVN: r38802

From-SVN: r38773

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

From-SVN: r38723

From-SVN: r38658

From-SVN: r38656

From-SVN: r38590

From-SVN: r37705

        * cse.c (cse_insn): Initialise all regcost variables.
        Fix a typo add missing '='.
        Only compare costs if there is a replacement insn.

From-SVN: r37694

	* alias.c (init_alias_analysis), calls.c (expand_call,
	emit_library_call_value_1), combine.c (init_reg_last_arrays),
	cse.c (new_basic_block), dbxout.c (dbxout_type), diagnostic.c
	(init_output_buffer, set_diagnostic_context), dwarf2out.c
	(equate_decl_number_to_die, build_abbrev_table), emit-rtl.c
	(init_emit_once), fold-const.c (mul_double, div_and_round_double),
	function.c (assign_parms), gcse.c (compute_can_copy,
	alloc_gcse_mem, alloc_reg_set_mem, record_one_set,
	compute_hash_table, compute_set_hash_table,
	compute_expr_hash_table), genattrtab.c (optimize_attrs), global.c
	(global_alloc, global_conflicts), haifa-sched.c (compute_trg_info,
	clear_units, schedule_block), integrate.c (initialize_for_inline,
	expand_inline_function), jump.c (thread_jumps), local-alloc.c
	(local_alloc), loop.c (combine_movables, count_loop_regs_set,
	load_mems_and_recount_loop_regs_set), print-tree.c (debug_tree),
	regclass.c (init_reg_sets, init_reg_sets_1, regclass,
	record_reg_classes, allocate_reg_info), reload.c
	(get_secondary_mem, remove_address_replacements, find_reloads),
	reload1.c (reload, set_initial_label_offsets, finish_spills,
	reload_as_needed, choose_reload_regs_init,
	reload_cse_simplify_operands), reorg.c (dbr_schedule), sbitmap.c
	(sbitmap_zero), simplify-rtx.c (simplify_plus_minus), ssa.c
	(rename_registers), stmt.c (expand_end_case), unroll.c
	(unroll_loop), varray.c (varray_grow), objc/objc-act.c: Use memset
	() instead of bzero ().

ch:
	* actions.c (check_missing_cases), typeck.c (build_chill_slice,
	build_chill_cast): Use memset () instead of bzero ().

cp:
	* class.c (duplicate_tag_error, build_vtbl_initializer), decl.c
	(push_binding_level), error.c (cp_tree_printer), pt.c
	(process_partial_specialization, tsubst_template_arg_vector),
	search.c (lookup_member): Use memset () instead of bzero ().

java:
	* expr.c (note_instructions), jcf-io.c (find_class), jcf-parse.c
	(init_outgoing_cpool), lex.c (java_init_lex): Use memset ()
	instead of bzero ().

From-SVN: r37303

cse.c (find_comparison_args): Check that we can reverse a comparison if needed before accepting the substitution.

        * cse.c (find_comparison_args): Check that we can reverse a
        comparison if needed before accepting the substitution.

From-SVN: r37064

	* Makefile.in (ggc-callbacks.o): Remove target.
	(flow.o): Depend on GGC_H.
	* alias.c (init_alias_analysis):
	Remove ggc_p conditionals.
	(end_alias_analysis): Likewise.
	* basic-block.h (init_flow): New function.
	(allocate_reg_life_data): Declare.
	* bb-reorder.c	(function_obstack): Replace with ...
	(flow_obstack): ... new variable.
	(fixup_reorder_chain): Use it.
	* c-decl.c (ggc_p): Remove.
	(caller-save.c): Don't call oballoc/obfree.
	* combine.c (struct
	undobuf): Remove storage.
	(try_combine): Don't call oballoc.
	(undo_all): Don't call obfree.
	* cse.c (insert): Use xmalloc, not
	oballoc.
	(cse_main): Adjust accordingly.
	* dwarf2out.c (save_rtx): Remove
	obstack code.
	(dwarf2out_init): Remove ggc_p conditionals.
	* emit-rtl.c (rtl_obstack): Remove.
	(gen_rtx_CONST_INT): Remove ggc_p conditionals.
	(make_insn_raw): Likewise.
	(emit_insn_before): Likewise.
	(emit_insn_after): Likewise.
	(emit_insn): Likewise.
	(gen_sequence): Likewise.
	(copy_insn_1): Remove handling of `b' RTL components.
	(init_emit_once): Remove ggc_p conditionals.
	* except.c (create_rethrow_ref): Don't fool with obstacks.
	(add_partial_entry): Likewise.
	(call_get_eh_context): Likewise.
	(begin_protect_partials): Likewise.
	(protect_with_terminate): Likewise.
	* explow.c
	(plus_constant_wide): Likewise.
	* expr.c (init_expr_once):
	Likewise.
	(emit_block_move): Likewise.
	(clear_storage): Likewise.
	(expand_expr): Likewise.
	* flow.c (function_obstack): Remove.
	(flow_obstack): New variable.
	(flow_firstobj): Likewise.
	(create_base_block): Use the flow_obstack.
	(split_block): Likewise.
	(split_edge): Likewise.
	(calculate_global_regs_live): Likewise.
	(allocate_bb_life_data): Make it static.  Likewiwse.
	(init_flow): New function.
	(size_int_type_wide): Remove ggc_p conditionals.
	* function.c
	(push_function_context_to): Don't call save_tree_status.
	(pop_function_context_from): Or restore_tree_status.
	(assign_stack_local_1): Don't call push_obstacks.
	(find_fixup_replacement): Use xmalloc.
	(fixup_var_refs_insns): Free the storage.
	(insns_for_mem_walk): Don't mess with obstacks.
	(instantiate_decls): Likewise.
	(trampoline_address): Likewise.
	(expand_function_end): Likewise.
	* function.h (sturct function):
	Remove obstack-related variables.
	(save_tree_status): Don't declare.
	(restore_tree_status): Likewise.
	* gcse.c (compute_can_copy):
	Don't call oballoc/obfree.
	* genattrtab.c (operate_exp): Remove
	ggc_p conditionals.
	(simplify_cond): Likewise.
	(simplify_test_exp): Don't mess with obstacks.
	(optimize_attrs): Likewise.
	* gengenrtl.c (gendef): Don't include
	ggc_p conditionals.
	* ggc-callbacks.c (ggc_p): Remove.
	* ggc-none.c (ggc_p): Remove.
	* ggc.h (ggc_p): Don't declare.
	* integrate.c (save_for_inline): Don't mess with obstacks.
	(integrate_decl_tree): Likewise.
	(output_inline_function): Likewise.
	* lists.c
	(init_EXPR_INSN_LIST_cache): Likewise.
	* loop.c (temp_obstack):
	Remove.
	(rtl_obstack): Likewise.
	(init_loop): Don't mess with obstacks.
	(reg_address_cost): Free BIVs and GIVs.
	(check_insns_for_bivs): Use xmalloc, not oballoc.
	(find_mem_givs): Likewise.
	(record_biv): Likewise.
	(general_induction_var): Likewise.
	(product_cheap_p): Likewse.
	* optabs.c (init_one_libfunc): Remove
	ggc_p conditional.
	* print-tree.c (debug_tree): Don't use
	oballoc/obfree.
	(print_node): Likewise.
	* profile.c (output_func_start_profiler):
	Remove call to temporary_allocation.
	* reload1.c
	(eliminate_regs_in_insn): Don't mess with obstacks.
	* resource.c
	(mark_target_live_regs): Use xmalloc.
	(free_resource_info): Free the memory.
	* rtl.c (rtl_obstack):
	Remove.
	(rtvec_alloc): Don't mess with obstacks.
	(rtx_alloc): Likewise.
	(rtx_free): Remove.
	(copy_rtx): Don't handle `b' cases.
	(read_rtx): Use a local rtl_obstack.
	* rtl.h (oballoc): Remove.
	(obfree): Likewise.
	(pop_obstacks): Likewise.
	(push_obstacks): Likewise.
	(allocate_bb_life_data): Likewise.
	(allocate_reg_life_data): Likewise.
	(rtx_free): Likewise.
	* sdbout.c (sdbout_queue_anonymous_type):
	Use tree_cons, not saveable_tree_cons.
	* simplify-rtx.c
	(cselib_init): Don't mess with obstacks.
	* stmt.c
	(mark_block_nesting): Mark the label_chain.
	(epxand_label): Use ggc_alloc, not oballoc.
	(clear_last_expr): Don't mess with obstacks.
	(expand_decl_cleanup): Likewise.
	(expand_dcc_cleanup): Likewise.
	(expand_dhc_cleanup): Likewise.
	(expand_anon_union_decl): Likewise.
	(add_case_node): Use xmalloc, not oballoc.
	(free_case_nodes): New function.
	(expand_end_case): Call it.
	* stor-layout.c (layout_type): Don't
	mess with obstacks.
	(layout_type): Likewise.
	* toplev.c (wrapup_global_declarations):
	Likewise.
	(compile_file): Remove ggc_p conditionals.
	(rest_of_compilation): Call init_flow.  Remove ggc_p conditionals.
	(decode_f_option): Remove ggc_p conditionals.
	* tree.c
	(function_maybepermanent_obstack): Remove.
	(maybepermanent_obstack): Likewise.
	(function_obstack): Likewise.
	(tmeporary_obstack): Likewise.
	(momentary_obstack): Likewise.
	(temp_decl_obstack): Likewise.
	(saveable_obstack): Likewise.
	(rtl_obstack): Likewise.
	(current_obstack): Likewise.
	(expression_obstack): Likewise.
	(struct obstack_stack): Likewise.
	(obstack_stack): Likewise.
	(obstack_stack_obstack): Likewise.
	(maybepermanent_firstobj): Likewise.
	(temporary_firstobj): Likewise.
	(momentary_firstobj): Likewise.
	(temp_decl_firstobj): Likewise.
	(momentary_function_firstobj): Likewise.
	(all_types_permanent): Likewise.
	(struct momentary_level): Likewise.
	(momentary_stack): Likewise.
	(init_obstacks): Remove initialization of removed obstacks.
	(save_tree_status): Remove.
	(restore_tree_status): Likewise.
	(temporary_allocation): Liekwise.
	(end_temporary_allocation): Liekwise.
	(resume_temporary_allocation): Likewise.
	(saveable_allocation): Likewise.
	(push_obstacks): Likewise.
	(push_obstacks_nochange): Likewise.
	(pop_obstacks): Likewise.
	(allocation_temporary_p): Likewise.
	(permanent_allocation): Likewise.
	(preserve_data): Likewise.
	(preserve_initializer): Likewise.
	(rtl_in_current_obstack): Likewise.
	(rtl_in_saveable_obstack): Likewise.
	(oballoc): Likewise.
	(obfree): Likewise.
	(savealloc): Likewise.
	(expralloc): Likewise.
	(print_obstack_name): Likewise.
	(debug_obstack): Likewise.
	(object_permanent_p): Likewise.
	(push_momentary): Likewise.
	(perserve_momentary): Likewise.
	(clear_momentary): Likewise.
	(pop_momentary): Likewise.
	(pop_momentary_nofree): Likewise.
	(suspend_momentary): Likewise.
	(resume_momentary): Likewise.
	(make_node): Don't set TREE_PERMANENT.
	(copy_node): Remove ggc_p conditionals.  Don't set TYPE_OBSTACK.
	Don't set TREE_PERMANENT.
	(get_identifier): Remove ggc_p conditionals.
	(build_string): Likewise.
	(make_tree_vec): Likewise.
	(build_decl_list): Remove.
	(build_expr_list): Likewise.
	(tree_cons): Remove ggc_p conditionals.
	(decl_tree_cons): Remove.
	(expr_tree_cons): Likewise.
	(perm_tree_cons): Likewise.
	(temp_tree_cons): Likewise.
	(saveable_tree_cons): Likewise.
	(build1): Remove ggc_p conditionals.
	(build_parse_node): Likewise.
	(build_type_attribute_variant): Don't mess with obstacks.
	(build_type_copy): Likewise.
	(type_hash_canon): Likewise.
	(build_pointer_type): Likewise.
	(build_reference_type): Likewise.
	(build_index_type): Likewise.
	(build_range_type): Likewise.
	(dump_tree_statistics): Don't print obstack information.
	* tree.h
	(struct tree_common): Remove permanent_flag.
	(TREE_PERMANENT): Remove.
	(TREE_SET_PERMANENT): Likewise.
	(TYPE_OBSTACK): Likewise.
	(struct tree_type): Remove obstack.
	(oballoc): Remove.
	(savealloc): Likewise.
	(build_decl_list): Likewise.
	(build_expr_list): Likewise.
	(perm_tree_cons): Likewise.
	(temp_tree_cons): Likewise.
	(saveable_tree_cons): Likewise.
	(decl_tree_cons): Likewise.
	(expr_tree_cons): Likewise.
	(suspend_momentary): Likewise.
	(allocation_temporary_p): Likewise.
	(resume_momentary): Likewise.
	(push_obstacks_nochange): Likewise.
	(permanent_allocation): Likewise.
	(push_momentary): Likewise.
	(clear_momentary): Likewise.
	(pop_momentary): Likewise.
	(end_temporary_allocation): Likewise.
	(pop_obstacks): Likewise.
	(push_obstacks): Likewise.
	(pop_momentary_nofree): LIkewise.
	(preserve_momentary): Likewise.
	(saveable_allocation): Likewise.
	(temporary_allocation): Likewise.
	(resume_temporary_allocation): Likewise.
	(perserve_initializer): Likewise.
	(debug_obstack): Likewise.
	(rtl_in_current_obstack): Likewise.
	(rtl_in_saveable_obstack): Likewise.
	(obfree): Likewise.
	* varasm.c (current_obstack): Remove.
	(saveable_obstack): Remove.
	(rtl_obstack): Remove.
	(immed_double_const): Don't mess with obstacks.
	(immed_real_cons): Likewise.
	(output_constant_def): Likewise.
	(init_varasm_status): Use xcalloc.
	(mark_pool_constant): Mark the pool constant itself.
	(free_varasm_status): Free memory.
	(decode_rtx_const): Call bzero directly, rather than expanding it
	inline.
	(record_rtx_const): Don't mess with obstacks.
	(force_const_mem): Likewise.
	* config/arm/arm.c (arm_encode_call_attribute): Remove ggc_p
	conditionals.
	(aof_pic_entry): Likewise.
	* config/ia64/ia64.c (ia64_encode_section_info): Likewise.
	* config/m32r/m32r.c (m32r_encode_section_info): Likewise.
	* config/pa/pa.c (saveable_obstack): Remove.
	(rtl_obstack): Likewise.
	(current_obstack): Likewise.
	(output_call): Don't mess with obstacks.
	(hppa_encode_label): Remove ggc_p conditionals.
	* config/romp/romp.c (get_symref): Don't mess with obstacks.
	* config/rs6000/rs6000.c (output_toc): Remove ggc_p conditional.
	(rs6000_encode_section_info): Likewise.
	* config/sh/sh.c (get_fpscr_rtx): Likewise.

From-SVN: r36856

        * cse.c (notreg_cost): New argument outer.
        (COST): Pass in SET to notreg_cost
        (COST_IN): New.
        (fold_rtx): Use COST_IN.  Prefer constants when costs
        are the same.

From-SVN: r36671

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

From-SVN: r36423

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

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

From-SVN: r36384

From-SVN: r36354

From-SVN: r36331

From-SVN: r36192

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

From-SVN: r36154

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

From-SVN: r36110

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

From-SVN: r35992

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

From-SVN: r35904

From-SVN: r35770

	* cse.c (fold_rtx): Avoid empty body in an if-statement.

	* doloop.c (doloop_iterations_max, doloop_modify): Avoid using the
	`U' integer constant suffix.

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

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

From-SVN: r35687

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

From-SVN: r35679

From-SVN: r35675

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

From-SVN: r35494

From-SVN: r35472

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

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

From-SVN: r35321

        * combine.c (try_combine): Use any_condjump_p, any_uncondjump_p
        and pc_set at the place of simplejump_p and condjump_p.
        * cse.c (record_jump_equiv): Likewise.
        * emit-rtl.c (emit): Likewise.
        * explow.c (find_next_ref): Likewise.
        * flow.c (tidy_fallthru_edge): Likewise.
        (init_propagate_block_info): Likewise.
        * gcse.c (delete_null_pointer_checks): Likewise.
        * ifcvt.c (cond_exec_get_condition, noce_get_condition,
        dead_or_predicable): Likewise.
        * integrate.c (copy_insn_list): Likewise.
        * loop.c (scan_loop, verify_dominator, find_and_verify_loops,
        for_each_insn_in_loop, check_dbra_loop, get_condition,
        insert_bct, load_mems): Likewise.
        * resource.c (find_dead_or_set_registers): Likewise.
        * sibcalls.c (simplejump_p): Likewise.
        * unroll.c (copy_loop_body, reg_dead_after_loop): Likewise.

From-SVN: r34175

	* cse.c (cse_basic_block): Only call find_reg_note if REG_NOTES not 0.
	* reload.c (find_equiv_reg): Likewise.
	* alias.c (init_alias_analysis): Likewise.
	Only call prologue_epilogue_contains on insns.
	* basic-block.h (REG_SET_TO_HARD_REG_SET): Call new function.
	* bb-reorder.c (hard-reg-set.h): Include earlier.
	* haifa-sched.c (hard-reg-set.h): Likewise.
	* ifcvt.c (hard-reg-set.h): Likewise.
	* local-alloc.c (hard-reg-set.h): Likewise.
	* loop.c (hard-reg-set.h): Likewise.
	* predict.c (hard-reg-set.h): Likewise.
	* regrename.c (hard-reg-set.h): Likewise.
	* flow.c (hard-reg-set.h): Likewise.
	(reg_set_to_hard_reg_set): New function.
	* bitmap.c (regs.h, basic-block.h): No longer include.
	(bitmap.h): Now include.
	* conflict.c (hard-reg-set.h): Include.
	* profile.c (hard-reg-set.h): Likewise.
	* print-rtl.c (hard-reg-set.h): Likewise.
	* sbitmap.c (hard-reg-set.h): Likewise.
	* toplev.c (hard-reg-set.h): Likewise.
	* unroll.c (hard-reg-set.h, basic-block.h): Likewise.
	* hard-reg-set.h (reg_names): Now constant.
	* regs.h (reg_names): Likewise.
	* regclass.c (reg_names): Likewise.
	* loop.h (basic-block.h): No longer include.
	(bitmap.h): Now include.
	* reload1.c (order_regs_for_reload): Avoid loop over reg sets.
	* Makefile.in (LOOP_H, sbitmap.o, profile.o): Reflect above changes.
	(toplev.o, print-rtl.o, conflict.o, unroll.o, bitmap.o): Likewise.

From-SVN: r34039

	* rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and
	MEM_ALIAS_SET.
	* alias.c (canon_rtx): Don't copy RTX_UNCHANGING_P or MEM_ALIAS_SET
	when calling MEM_COPY_ATTRIBUTES.
	* emit-rtl.c (operand_subword, change_address): Likewise.
	* explow.c (stabilize): Likewise.
	* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	* combine.c (combine_simplify_rtx): Don't copy RTX_UNCHANGING_P
	when calling MEM_COPY_ATTRIBUTES.
	(make_extraction, simplify_shift_const, gen_lowpart_for_combine):
	Likewise.
	* cse.c (gen_lowpart_if_possible): Likewise.
	* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
	* optabs.c (gen_move_insn): Likewise.
	* recog.c (validate_replace_rtx_1): Likewise.
	* simplify-rtx.c (add_mem_for_addr): Likewise.
	* stmt.c (expand_anon_union_decl): Likewise.
	* config/arm/arm.md: Likewise.
	* config/h8300/h7300.c (fix_bit_operand): Likewise.
	* config/m88k/m88k.c (legitimize_address, block_move_loop): Likewise.
	(block_move_no_loop, block_move_sequence): Likewise.
	* config/rs6000/rs6000.c (expand_block_move_mem): Likewise.
	* config/alpha/alpha.c (get_aligned_mem): Likewise.
	Clear MEM_ALIAS_SET.
	* final.c (alter_subreg): Don't copy MEM_ALIAS_SET when calling
	MEM_COPY_ATTRIBUTES.

From-SVN: r33665

	* cse.c (CSE_ADDRESS_COST): Remove.
	(find_best_addr): Add new parameter "MODE", use address_cost instead
	of CSE_ADDRESS_COST
	(address_cost): New.
	(fold_rtx): Update call of find_best_addr.
	* rtl.h (address_cost): Declare.
	* loop.c (general_induction_var): Add new parameter "MODE", use
	address_cost instead of ADDRESS_COST
	(init_loop): Use address_cost instead of ADDRESS_COST.
	(check_insn_for_givs): Update call of general_induction_var.
	(find_mem_givs): Likewise.
	(consec_sets_giv): Likewise.
	* config/i386/i386.h (ADDRESS_COST): Call ix86_address_cost.
	* i386.c (ix86_address_cost): New.
	* i386-protos.h (ix86_address_cost): Declare.

From-SVN: r33486

From-SVN: r33433