Commit Graph

175 Commits

Author SHA1 Message Date
Alexandre Oliva
f54104df4e gcse.c (compute_ld_motion_mems): ASM outputs aren't moveable.
* gcse.c (compute_ld_motion_mems): ASM outputs aren't moveable.
(find_moveable_store): Likewise.

From-SVN: r41363
2001-04-15 16:50:51 +00:00
Mark Mitchell
f1fa37ff6b Makefile.in (gcse.o): Depend on params.h.
* Makefile.in (gcse.o): Depend on params.h.
	* gcse.c: Include params.h.
	(gcse_main): Don't do GCSE if doing so will take inordinate
	amounts of memory.
	* params.def (PARAM_MAX_GCSE_MEMORY): New  parameter.
	* params.h (MAX_GCSE_MEMORY): New macro.

From-SVN: r41260
2001-04-11 18:22:46 +00:00
Richard Kenner
c57718d3fe gcse.c (update_ld_motion_stores): Don't use variable I for an insn.
* gcse.c (update_ld_motion_stores): Don't use variable I for an insn.
	* flow.c (set_block_for_new_insns): Remove needless cast and
	properly check for unset block number.

From-SVN: r41227
2001-04-10 17:45:12 -04:00
Andrew MacLeod
e2d2ed72a7 gcse.c (oprs_unchanged_p): Pass basic_block to load_killed_in_block_p.
2001-04-09  Andrew MacLeod  <amacleod@redhat.com>

	* gcse.c (oprs_unchanged_p): Pass basic_block to load_killed_in_block_p.
	(load_killed_in_block_p): Change bb parameter from int to basic_block.
	(oprs_not_set_p): Pass basic_blocks instead of ints as parameters.
	(handle_rd_kill_set): Change bb parameter from int to basic_block.
	(compute_kill_rd): Pass basic_blocks instead of ints as parameters.
	(expr_killed_p): Change bb parameter from int to basic_block, pass
	basic_blocks instead of ints as parameters.
	(compute_ae_kill): Pass basic_blocks instead of ints as parameters.
	(expr_reaches_here_p_work, expr_reaches_here_p): Change bb parameter
	from int to basic_block, pass basic_blocks instead of ints as parms.
	(pre_expr_reaches_here_p_work, pre_expr_reaches_here_p): Change bb
	parameter from int to basic_block, pass basic_blocks instead of ints.
	(process_insert_insn): Pass basic_blocks instead of ints as parameters.
	(insert_insn_end_bb): Change bb parameter from int to basic_block,
	pass basic_blocks instead of ints.
	(pre_edge_insert, pre_insert_copy_insn, pre_insert_copies): Pass
	basic_blocks instead of ints as parameters.
	(pre_delete): Pass basic_blocks instead of ints as parameters.
	(hoist_expr_reaches_here_p): Change bb parameter from int to
	basic_block, pass basic_blocks instead of ints.
	(hoist_code): Pass basic_blocks instead of ints as parameters.
	(reg_set_info, store_ops_ok, store_killed_after, store_killed_before):
	Change bb parameter from int to basic_block.
	(build_store_vectors): Pass basic_blocks instead of ints as parameters.
	(insert_insn_start_bb): Change bb parameter from int to basic_block,
	pass basic_blocks instead of ints.
	(insert_store): Pass basic_blocks instead of ints as parameters.
	(replace_store_insn, delete_store): Change bb parameter from int to
	basic_block, pass basic_blocks instead of ints.
	(store_motion): Pass basic_blocks instead of ints as parameters.

From-SVN: r41209
2001-04-09 15:20:26 +00:00
Andrew MacLeod
ccbaf064ff basic-block.h (set_new_block_for_insns): New Prototype.
2001-04-09  Andrew MacLeod  <amacleod@redhat.com>

	* basic-block.h (set_new_block_for_insns): New Prototype.
	(set_block_num): Delete prototype.
	* flow.c (set_block_num): Remove obsolete function.
	(set_block_for_new_insns): Set BB for single or multiple insns.
	* gcse.c (handle_avail_expr): Use set_block_for_new_insns.
	(process_insn_end_bb): Use set_block_for_new_insns or
	set_block_for_insn instead of set_block_num.
	(pre_insert_copy_insn): Use set_block_for_new_insns.
	(update_ld_motion_stores): Use set_block_for_new_insns.
	(insert_insn_start_bb): Use set_block_for_new_insns.
	(replace_store_insn): Use set_block_for_new_insns.

From-SVN: r41208
2001-04-09 15:17:08 +00:00
Andrew MacLeod
a13d4ebfc3 alias.c (get_addr): Externalize.
2001-04-09  Andrew MacLeod  <amacleod@redhat.com>
	    Jeff Law  <law@cygnus.com>

	* alias.c (get_addr): Externalize.
	(canon_true_dependence): New function. Behaves like true_dependance
	except it already assumes a MEM has been canonicalized.
	* flags.h (flag_gcse_lm, flag_gcse_sm): New optimization flags.
	* gcse.c (struct ls_expr): Add load/store expressions structure.
	(modify_mem_list, canon_modify_mem_list): New variable.
	(gcse_main): Initialize & finalize alias analysis. Use enhanced
	load motion and store motion if requested.
	(alloc_gcse_mem): Allocate space for modify_mem_list array.
	(free_gcse_mem): Free the modify_mem_list array.
	(oprs_unchanged_p): Use load_killed_in_block_p.
	(gcse_mems_conflict_p, gcse_mem_operand): New variables.
	(mems_conflict_for_gcse_p): New function.  Don't kill loads
	with stores to themselves if its in the load/store expression list.
	(load_killed_in_block_p): New function.
	(canon_list_insert): New Function.
	(record_last_mem_set_info): Keep a list of all instructions which
	can modify memory for each basic block.
	(compute_hash_table, reset_opr_set_tables): Clear modify_mem_list.
	(oprs_not_set_p): Use load_killed_in_block_p.
	(mark_call, mark_set, mark_clobber): Use record_last_mem_set_info.
	(expr_killed_p): Use load_killed_in_block_p.
	(compute_transp): Do not pessimize memory references.
	(pre_edge_insert): Update stores for a load motion expression.
	(one_pre_gcse_pass): Check loads/stores for extra load motion.
	(ldst_entry): Find or create a ldst_expr structure.
	(free_ldst_entry): Free memory for an individual item.
	(free_ldst_mems): Free entire load/store expression list.
	(print_ldst_list): Print debug info.
	(find_rtx_in_ldst): Try to find an rtx expression in the ldst list.
	(enumerate_ldsts): Assign integer values to each entry in list.
	(first_ls_expr): First expression in the list.
	(next_ls_expr): Next expression in the list.
	(simple_mem): Check if expression qualifies for ld/st expression list.
	(invalidate_any_buried_refs): Remove from expression list if its
	used in some other way we dont understand.
	(compute_ld_motion_mems): Find all potential enhanced load motion
	expression.
	(trim_ld_motion_mems): Remove any expressions which are invalid.
	(update_ld_motion_stores): Copy store values to registers for loads
	which have been moved.
	(regvec, st_antloc, num_store): New global statics.
	(reg_set_info): Marks registers as set.
	(store_ops_ok): Verfies registers expressions are valid in a block.
	(find_moveable_store): Look for moveable stores in a pattern.
	(compute_store_table): Find stores in a function worth moving, maybe.
	(load_kills_store): Check dependance of a load and store.
	(find_loads): Find any loads in a pattern.
	(store_killed_in_insn): Check if a store is killed in an insn.
	(store_killed_after): Check is store killed after an insn in a block.
	(store_killed_before): Check is store killed before an insn in a block.
	(build_store_vectors): Generate the antic and avail vectors.
	(insert_insn_start_bb): Insert at the start of a BB, update BLOCK_HEAD.
	(insert_store): Add a store to an edge.
	(replace_store_insn): Replace a store with a SET insn.
	(delete_store): Delete a store insn.
	(free_store_memory): Free memory.
	(store_motion): Perform store motion.
	* invoke.texi: Add documentation for -fcse-lm and -fgcse-sm.
	* rtl.h (get_addr, canon_true_dependence): Add prototypes.
	* toplev.c (flag_gcse_lm, flag_gcse_sm): New Variables.
	(f_options): Add gcse-lm and gcse-sm.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r41207
2001-04-09 14:27:05 +00:00
Jakub Jelinek
8e184d9cc1 gcse.c (delete_null_pointer_checks_1): Add delete_list argument, push insns to delete to it instead of deleting them.
* gcse.c (delete_null_pointer_checks_1): Add delete_list argument,
	push insns to delete to it instead of deleting them.
	(delete_null_pointer_checks): Delete insns from delete_list after
	all delete_null_pointer_checks_1 passes are done.

From-SVN: r41092
2001-04-04 22:19:23 +02:00
John Wehle
7142e31845 rtl.h (set_noop_p): Declare.
* rtl.h (set_noop_p): Declare.
	* flow.c (set_noop_p): Move from here ...
	* rtlanal.c (set_noop_p): ... to here and enhance.
	* cse.c (delete_trivially_dead_insns): Use it.
	* gcse.c (hash_scan_set): Likewise.
	* jump.c (delete_noop_moves): Likewise.
	* recog.c (split_all_insns): Likewise.

From-SVN: r41077
2001-04-04 05:03:29 +00:00
Richard Kenner
52d76e1128 gcse.c (hash_scan_set): An expression is not anticipatible if it is part of a multi-SET insn.
* gcse.c (hash_scan_set): An expression is not anticipatible if it
	is part of a multi-SET insn.

From-SVN: r40722
2001-03-21 19:21:16 -05:00
Richard Kenner
8d444206b1 Fix typo in last change
From-SVN: r39869
2001-02-18 22:19:23 -05:00
Richard Kenner
fb0c0a1270 Makefile.in (gcse.o): Now includes ggc.h.
* Makefile.in (gcse.o): Now includes ggc.h.
	* gcse.c: Include ggc.h.
	(want_to_gcse_p): Verify expression can be in SET as valid insn.
	(try_replace_reg): Remove warning of uninitialize variable.
	(process_insert_insn): Call invalid_insn_p to validate insn.
	* recog.c (insn_invalid_p): Now global.
	See if can make valid by adding CLOBBERs of SCRATCH only and do if so.
	* recog.h (insn_invalid_p): New declaration.

From-SVN: r39857
2001-02-18 18:56:34 -05:00
Richard Kenner
172890a2dd gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV.
* gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV.
	Don't CSE a nop.
	(hash_scan_insn): Clean up calls to hash_scan_set.
	(compute_kill_rd): REGNO now unsigned.
	(try_replace_reg): Rework to use simplify_replace_rtx.
	(cprop_jump, cprop_cc0_jump): Likewise.
	(cprop_insn): Call find_reg_equal_equiv_note.
	Reflect changes to cprop_jump and cprop_cc0_jump.

From-SVN: r39774
2001-02-16 14:29:49 -05:00
Jan Hubicka
848e0190fb cse.c (cse_main): Converts ifdefs on PIC_OFFSET_TABLE_REGNUM to conditionals.
* 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
2001-02-13 20:17:45 +00:00
John David Anglin
5b1ef59457 loop.c (add_label_notes): Increment the label usage count when a note is added to an insn which refers to...
* 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.

From-SVN: r38603
2001-01-01 17:58:27 -07:00
Michael Matz
b614171efe gcse.c (compute_pre_data): Kill trapping expressions in destination blocks of abnormal edges.
* gcse.c (compute_pre_data): Kill trapping expressions in
        destination blocks of abnormal edges.

From-SVN: r38068
2000-12-06 10:45:31 -08:00
Diego Novillo
d1cc928a7b gcse.c (hoist_expr_reaches_here_p): Do not mark expr_bb as visited before visiting it.
2000-11-21  Diego Novillo  <dnovillo@redhat.com>

	* gcse.c (hoist_expr_reaches_here_p): Do not mark expr_bb as
	visited before visiting it.

From-SVN: r37627
2000-11-21 16:00:20 -05:00
Michael Matz
f80326884c Michael Matz <matzmich@cs.tu-berlin.de>
* dominance.c: New file.
        * Makefile.in (OBJS): Add dominance.o.

        * flow.c (compute_flow_dominators): Remove.
        (compute_immediate_dominators): Remove.
        (compute_immediate_postdominators): Remove.
        * basic-block.h: Remove their prototypes.
        (calculate_dominance_info): Add prototype.

        * dce.c (eliminate_dead_code): Change calls to above functions.
        Don't compute dominators but only immediate dominators.
        * flow.c (flow_loops_find): Change callers.
        * gcse.c (compute_code_hoist_data): Likewise.
        * haifa-sched.c (schedule_insns): Likewise.
        * ifcvt.c (if_convert): Likewise.
        * ssa.c (convert_to_ssa): Likewise, and only compute immediate
        dominators.

From-SVN: r37449
2000-11-14 01:58:40 -08:00
Joseph Myers
961192e1dd alias.c [...] (init_alias_analysis, [...]): Use memset () instead of bzero ().
* 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
2000-11-07 22:50:06 +00:00
Aldy Hernandez
d7836e38b7 do not propagate constants into jump_insn's for machines with CC0, more than once
From-SVN: r37039
2000-10-24 22:49:39 +00:00
Richard Kenner
ebb13e7eb8 gcse.c (set_hash_table_size): Now unsigned.
* gcse.c (set_hash_table_size): Now unsigned.
	* sdbout.c (template_name_p): Add "const" to avoid warnings.
	(sdbout_record_type_name, plain_type_1, sdbout_symbol): Likewise.
	(sdbout_one_type, sdbout_parms, sdbout_reg_parms): Likewise.
	(sdbout_end_epilogue): Remove variable NAME.
	* system.h (getopt): Add default definition.
	* config/alpha/alpha.c (print_operand): Don't continue processing
	after issuing error.
	(summarize_insn): Avoid use of UL in constant.

From-SVN: r36974
2000-10-20 15:17:41 -04:00
Mark Mitchell
1f8f4a0b31 Remove obstacks.
* 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
2000-10-13 06:26:46 +00:00
Brad Lucier
18424ae17a toplev.c (warn_disabled_optimization): Declare new warning flag.
* toplev.c (warn_disabled_optimization): Declare new warning flag.
        * flags.h (warn_disabled_optimization): Add it here.
        * gcse.c (gcse_main): Add warning when disabled.
        * invoke.texi: Document -Wdisabled-optimization

Co-Authored-By: Mark Mitchell <mark@codesourcery.com>

From-SVN: r36568
2000-09-22 07:22:07 +00:00
Alexandre Oliva
c0712acbc7 gcse.c (hash_string_1): Add prototype.
* gcse.c (hash_string_1): Add prototype.
* cse.c (canon_hash_string): Likewise.

From-SVN: r36154
2000-09-05 06:04:09 +00:00
Alexandre Oliva
6462bb432f rtl.h (ASM_OPERANDS_INPUT_CONSTRAINT_EXP): New macro.
* 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
2000-09-02 02:54:55 +00:00
Rodney Brown
2c3c49dec3 alias.c (mark_constant_function): Use INSN_P.
* 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
2000-08-04 14:28:08 -06:00
Jan Hubicka
e251e2a27f gcse.c (try_replace_reg): Use validate_replace_rtx_subexp instead of replace_rtx.
* gcse.c (try_replace_reg): Use validate_replace_rtx_subexp
	instead of replace_rtx.
	* recog.c (validate_replace_rtx_subexp): New function.
	* recog.h (validate_replace_rtx_subexp): Declare.

From-SVN: r35349
2000-07-30 18:44:13 +00:00
Richard Henderson
4b983fdc50 cse.c (canon_hash): Handle PRE_MODIFY/POST_MODIFY.
* 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
2000-07-28 10:46:18 -07:00
Kaveh R. Ghazi
63bc1d05cc dwarf2out.c: Indent #error directive.
* dwarf2out.c: Indent #error directive.

	* gbl-ctors.h: Fix typo in comment.
	(__do_global_ctors): Prototype.

	* gcse.c (record_one_set, pre_delete): Remove unused variables.

	* rs6000.c (rs6000_maybe_dead): Delete unused prototype.
	(print_operand): Initialize variable `t'.

From-SVN: r35319
2000-07-28 16:08:54 +00:00
Mark Mitchell
589ca5cb10 Put phi nodes after NOTE_INSN_BASIC_BLOCK.
* rtl.h (NOTE_INSN_BASIC_BLOCK_P): New macro.
	* bb-reorder.c (get_next_bb_note): Use NOTE_INSN_BASIC_BLOCK_P.
	(get_prev_bb_note): Likewise.
	(remove_scope_notes): Likewise.
	* flow.c (commit_one_edge_insertion): Likewise.
	(merge_blocks_nomove): Likewise.
	(verify_flow_info): Likewise.
	* gcse.c (insert_insn_end_bb): Likewise.
	* reg-stack.c (emit_swap_insn): Likewise.
	* ssa.c (first_insn_after_basic_block_note): New function.
	(insert_phi_node): Use it.
	(rename_block): Likewise.
	(eliminate_phi): Likewise.
	(make_regs_equivalent_over_bad_edges): Likewise.
	(make_equivalent_phi_alternatives_equivalent): Likewise.
	(for_each_successor_phi): Likewise.
	(convert_from_ssa): Modify phi-node deletion algorithm.

From-SVN: r35296
2000-07-27 17:25:14 +00:00
Jeffrey A Law
55d3f91712 gcse.c (alloc_pre_mem): Do not alloc TRANSPOUT, it is not needed by our gcse pass anymore.
* gcse.c (alloc_pre_mem): Do not alloc TRANSPOUT, it is not
        needed by our gcse pass anymore.
        (free_pre_mem): Corresponding changes.
        (compute_pre_data): Do not call compute_transpout anymore.

From-SVN: r35226
2000-07-24 09:47:06 -06:00
Jeffrey A Law
68e866451e gcse.c (alloc_avail_expr_mem): Kill unused 'u_bitmap'.
* gcse.c (alloc_avail_expr_mem): Kill unused 'u_bitmap'.
        (free_avail_expr_mem, alloc_pre_mem, free_pre_mem): Corresponding
        changes.

From-SVN: r35225
2000-07-24 09:32:05 -06:00
Jeffrey A Law
bd3675fcf1 gcse.c (free_pre_mem): Do not free ANTLOC and AE_KILL here.
* gcse.c (free_pre_mem): Do not free ANTLOC and AE_KILL here.
        (compute_pre_data): Do it here instead.

From-SVN: r35224
2000-07-24 09:21:16 -06:00
Jeffrey A Law
e20dccadaf gcse.c (alloc_pre_mem, [...]): Delete unused bitmap 'temp_bitmap'.
* gcse.c (alloc_pre_mem, free_pre_mem): Delete unused bitmap
        'temp_bitmap'.
        (pre_delete): Corresponding changes.

From-SVN: r35222
2000-07-24 02:05:03 -06:00
Michael Matz
274969ea8e gcse.c (record_one_set): Prepend instead of append onto reg_set_table, making it O(n) instead O(n^2).
* gcse.c (record_one_set): Prepend instead of append onto
        reg_set_table, making it O(n) instead O(n^2).
        * lcm.c (compute_antinout_edge,compute_laterin,compute_available):
        Use a queue instead of a stack as worklist.

From-SVN: r35158
2000-07-20 18:07:33 -06:00
Bernd Schmidt
b86db3ebc2 Additional ENABLE_CHECKING code.
From-SVN: r35136
2000-07-19 17:22:01 +00:00
Jeff Law
a2e90653d0 Fix typo in comment.
From-SVN: r34840
2000-07-03 00:50:29 -06:00
Jeffrey A Law
c66e8ae9da gcse.c (compute_pre_data): Compute ae_kill using other local properties instead of calling compute_ae_kill.
* gcse.c (compute_pre_data): Compute ae_kill using other local
        properties instead of calling compute_ae_kill.

From-SVN: r34839
2000-07-03 00:49:31 -06:00
Richard Kenner
0a37799771 * gcse.c (insert_insn_end_bb): Always put after NOTE_INSN_BASIC_BLOCK.
From-SVN: r34592
2000-06-18 21:40:32 -04:00
Jan Hubicka
7f1c097d36 combine.c (try_combine): Use any_condjump_p...
* 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
2000-05-25 14:38:49 -07:00
Jason Merrill
f9e158c377 simplify-rtx.c (simplify_ternary_operation): Cast to unsigned.
* simplify-rtx.c (simplify_ternary_operation): Cast to unsigned.
        * stor-layout.c (place_field): Likewise.
        * integrate.h (struct inline_remap): Make regno_pointer_align unsigned.
        * expr.c (store_expr): Make align unsigned.
        * explow.c (plus_constant_wide): Make low words unsigned.
        * expmed.c (choose_multiplier): Likewise.
        * fold-const.c (fold):  Likewise.
        * tree.h (build_int_2): Likewise.
        * tree.c (build_int_2_wide, tree_int_cst_msb): Likewise.
        * emit-rtl.c (gen_reg_rtx): Add cast to unsigned char*.
        (init_emit): Change cast to unsigned char*.
        * varasm.c (compare_constant_1): Add cast to char*.
        * gcse.c (delete_null_pointer_checks): Change cast to unsigned int*.
        * reload1.c (reload): Likewise.

        * rtl.h (MEM_SET_IN_STRUCT_P): Use do { } while (0).

From-SVN: r33684
2000-05-04 17:15:05 -04:00
Richard Kenner
2e653e3965 gcse.c (expr_hash_table_size): Now unsigned.
* gcse.c (expr_hash_table_size): Now unsigned.
	(compute_ae_gen): Local variable `i' now unsigned.
	(compute_ae_kill, pre_insert_copies, pre_delete, pre_gcse): Likewise.
	(compute_transout, hoist_code): Likewise.
	(compute_local_properties): Likewise, also hash_table_size.
	(alloc_expr_hash_table): N_INSNS now unsigned.
	(delete_null_pointer_checks): Mark arg F as unused.

From-SVN: r33054
2000-04-10 07:33:18 -04:00
Richard Henderson
a18820c64c gcse.c (gcse_main): Don't rebuild the CFG here.
* gcse.c (gcse_main): Don't rebuild the CFG here.
        (delete_null_pointer_checks): Likewise.
        * ssa.c (convert_to_ssa): Likewise.
        * toplev.c (rest_of_compilation): Do it here instead.  Combine
        sequential calls to TIMEVAR.  Consistently use `insns' instead of
        `get_insns()'.  Always split insns after reload when optimizing.

From-SVN: r32995
2000-04-07 02:23:29 -07:00
Richard Kenner
770ae6cc71 * Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
	* alias.c (reg_known_value_size): Now unsigned.
	* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
	(really_start_incremental_init): Use bitsize_zero_node.
	(push_init_level, pop_init_level, output_init_element): Likewise.
	Use bitsize_unit_node and bitsize_one_node.
	(output_pending_init_elements, process_init_element): Likewise.
	* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
	(make_extraction): Position and length HOST_WIDE_INT and unsigned
	HOST_WIDE_INT, respectively.
	(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
	(num_sign_bit_copies): Returns unsigned.
	BITWIDTH now unsigned; rework arithmetic.
	Remove recursive call from arg to MAX.
	(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
	(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
	REGNO now unsigned.
	(set_nonzero_bit_and_sign_copies): NUM now unsigned.
	(find_split_point, expand_compound_operation, make_extraction): LEN
	now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
	(make_field_assignment): Likewise.
	(combine_simplify_rtx): Add cast.
	(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
	(force_to_mode): WIDTH now unsigned; add cast.
	(if_then_else_cond): SIZE now unsigned.
	(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
	(extended_count): Now returns unsigned.
	(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
	Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
	(simplify_comparison): MODE_WIDTH now unsigned.
	(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
	(mark_used_regs_combine): Likewise; rework arithmetic.
	(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
	(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
	(record_promoted_value): REGNO now unsigned.
	(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
	(get_last_value): REGNO now unsigned.
	(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
	(reg_dead_regno, reg_dead_endregno): Now unsigned.
	(remove_death): Arg REGNO now unsigned.
	(move_deaths):  REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
	(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
	now unsigned.
	* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
	* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
	(struct cse_reg_info): REGNO now unsigned.
	(cached_regno): Now unsigned.
	(REGNO_QTY_VALID_P): Add cast.
	(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
	(remove_invalid_regs): Likewise.
	(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
	as are variables END and I.
	(get_cse_reg_info, insert): Likewise.
	(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
	(canon_hash): Likewise.
	(insert_regs, lookup_for_remove): REGNO now unsigned.
	(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
	New variable RN.
	* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
	* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
	* emit-rtl.c (subreg_realpart_p): Add cast.
	(operand_subword): Arg I is now unsigned as is var PARTWORDS.
	(operand_subword_force): Arg I is now unsigned.
	* except.c (eh_regs): Variable I is now unsigned.
	* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
	* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
	length is unsigned HOST_WIDE_INT; likewise for internal variables.
	(store_split_bit_field, extract_fixed_bit_field): Likewise.
	(extract_split_bit_field, store_bit_field, extract_bit_field):
	Likewise.
	* expr.c (store_constructor_fields, store_constructor, store_field):
	Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
	(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
	(do_jump): Likewise.
	(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
	MAX_SIZE is now unsigned.
	(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
	(emit_group_store): Likewise.
	(emit_move_insn): I now unsigned.
	(store_constructor): Use host_integerp, tree_low_cst, and
	bitsize_unit_node.
	(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
	Rework all calculations to use trees and new fields.
	* expr.h (promoted_input_arg): Regno now unsigned.
	(store_bit_field, extract_bit_field): Adjust types of pos and size.
	(mark_seen_cases): Arg is HOST_WIDE_INT.
	* flow.c (verify_wide_reg_1): REGNO now unsigned.
	* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
	precisions and alignments are unsigned.
	(optimize_bit_field_compare, fold_truthop): Likewise.
	(int_const_binop): Adjust threshold for size_int_type_wide call.
	(fold_convert): Likewise.
	(size_int_type_wide): Make table larger and fix thinko that only
	had half of table used.
	(all_ones_mask_p, fold): Precisions are unsigned.
	* function.c (put_reg_info_stack): REGNO is unsigned.
	(instantiate_decl): Size is HOST_WIDE_INT.
	(instantiate_virtual_regs): I is unsigned.
	(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
	(promoted_input_arg): REGNO is unsigned.
	* function.h (struct function): x_max_parm_reg is now unsigned.
	* gcse.c (max_gcse_regno): Now unsigned.
	(struct null_pointer_info): min_reg and max_reg now unsigned.
	(lookup_set, next_set): REGNO arg now unsigned.
	(compute_hash_table): REGNO and I now unsigned.
	(handle_avail_expr): regnum_for_replacing now unsigned.
	(cprop_insn): REGNO now unsigned.
	(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
	* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
	* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
	* hard-reg-set.h (reg_class_size): Now unsigned.
	* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
	* jump.c (mark_modified_reg): I now unsigned; add cast.
	(rtx_equal_for_thread_p): Add cast.
	* loop.c (max_reg_before_loop): Now unsigned.
	(struct_movable): REGNO now unsigned.
	(try_copy_prop): REGNO arg unsigned.
	(regs_match_p): XN and YN now unsigned.
	(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
	(strength_reduce): Likewise; NREGS also unsigned.
	(first_increment_giv, last_increment_giv unsigned): Now unsigned.
	* loop.h (struct iv_class): REGNO now unsigned.
	(max_reg_before_loop, first_increment_giv, last_increment_giv):
	Now unsigned.
	* machmode.h (mode_size, mode_unit_size): Now unsigned.
	(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
	* optabs.c (expand_binop): I and NWORDS now unsigned.
	(expand_unop): I now unsigned.
	* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
	print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
	* real.c (significand_size): Now returns unsigned.
	* real.h (significand_size): Likewise.
	* regclass.c (reg_class_size): Now unsigned.
	(choose_hard_reg_mode): Both operands now unsigned.
	(record_reg_classes): REGNO and NR now unsigned.
	(reg_scan): NREGS now unsigned.
	(reg_scan_update): old_max_regno now unsigned.
	(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
	* reload.c (find_valid_class): BEST_SIZE now unsigned.
	(find_dummy_reload): REGNO, NWORDS, and	I now unsigned.
	(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
	Likewise for variable R.
	(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
	as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
	(find_equiv_reg): Add casts.
	(regno_clobbered_p): Arg REGNO now unsigned.
	* reload.h (struct reload): NREGS now unsigned.
	(refers_to_regno_for_reload_p): Regno args are unsigned.
	(regno_clobbered_p): Likewise.
	* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
	(compute_use_by_pseudos): REGNO now unsigned.
	(find_reg): I and J now unsigned, new variable K, and change loop
	variables accordingly; THIS_NREGS now unsigned.
	(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
	(spill_hard_reg): REGNO arg now unsigned; add casts.
	(forget_old_reloads_1): REGNO, NR, and I now unsigned.
	(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
	(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
	END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
	(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
	(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
	(emit_reload_insns): REGNO now unsigned.
	(reload_cse_move2add): Add cast.
	(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
	and rework loop.
	* resource.c (mark_referenced_resources, mark_set_resources): New
	variable R; REGNO and LAST_REGNO now unsigned.
	(mark_target_live_regs): J and REGNO now unsigned.
	* rtl.c (mode_size, mode_unit_size): Now unsigned.
	* rtl.h (union rtunion_def): New field rtuint.
	(XCUINT): New macro.
	(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
	(operand_subword, operand_subword_force): Word number is unsigned.
	(choose_hard_reg_mode): Operands are unsigned.
	(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
	(find_regno_note, find_regno_fusage, replace_regs): Likewise.
	(regno_use_in, combine_instructions, remove_death): Likewise.
	(reg_scan, reg_scan_update): Likewise.
	(extended_count): Return is unsigned.
	* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
	INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
	(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
	(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
	(reg_reg_last_1): FIRS and LAST now unsigned.
	(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
	(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
	now unsigned.
	(find_regno_note, regno_use_in): Arg REGNO now unsigned.
	(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
	(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
	(replace_regs): Arg NREGS now unsigned.
	* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
	* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
	(simplify_binary_operation): Likewise.
	(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
	THIS_LAST now unsigned.
	(cselib_record_set): Add cast.
	* ssa.c (ssa_max_reg_num): Now unsigned.
	(rename_block): REGNO now unsigned.
	* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
	sizes now unsigned.
	(all_cases_count): Just return -1 not -2.
	COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
	Rework tests to use trees whenever possible.
	Use host_integerp and tree_low_cst.
	(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
	Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
	(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
	* stor-layout.c (mode_for_size): SIZE arg now unsigned.
	(smallest_mode_for_size): Likewise.
	(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
	KNOWN_ALIGN is now an alignment, so simplify code.
	Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
	(start_record_layout): Renamed from new_record_layout_info.
	Update to new fields.
	(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
	New functions.
	(place_union_field): Renamed from layout_union_field.
	Update to use new fields in rli.
	(place_field): Renamed from layout_field.
	Major rewrite to use new fields in rli; pass alignment to layout_decl.
	(finalize_record_size): Rework to use new fields in rli and handle
	union.
	(compute_record_mode): Rework to simplify and to use new DECL fields.
	(finalize_type_size): Make rounding more consistent.
	(finish_union_layout): Deleted.
	(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
	(layout_type, case RECORD_TYPE): Call new function names.
	(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
	(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
	(get_best_mode): UNIT is now unsigned; remove casts.
	* tree.c (bit_position): Compute from new fields.
	(byte_position, int_byte_position): New functions.
	(print_type_hash_statistics): Cast to remove warning.
	(build_range_type): Use host_integerp and tree_low_cst to try to hash.
	(build_index_type): Likewise; make subtype of sizetype.
	(build_index_2_type): Pass sizetype to build_range_type.
	(build_common_tree_nodes): Use size_int and bitsize_int to
	initialize nodes; add bitsize_{zero,one,unit}_node.
	* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
	(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
	(DECL_PACKED, DECL_BIT_FIELD): Likewise.
	(DECL_FIELD_BITPOS): Deleted.
	(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
	(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
	(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
	(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
	(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
	(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
	(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
	(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
	(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
	(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
	(DECL_ALIGN): Adjust to new field in union.
	(DECL_OFFSET_ALIGN): New field.
	(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
	(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
	(union tree_decl): Add struct for both aligns.
	(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
	(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
	(struct record_layout_info): Rework fields to have offset
	alignment and byte and bit position.
	(start_record_layout, place_field): Renamed from old names.
	(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
	(byte_position, int_byte_position): Likewise.
	(get_inner_reference): Change types of position and length.
	* unroll.c (unroll_loop): New variable R; use for some loops.
	MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
	(calculate_giv_inc): Arg REGNO now unsigned.
	(copy_loop_body): REGNO and SRC_REGNO now unsigned.
	* varasm.c (assemble_variable): Clean up handling of size using
	host_integerp and tree_low_cst.
	(decode_addr_const): Use byte, not bit, position.
	(output_constructor): bitpos and offsets are HOST_WIDE_INT;
	use tree_low_cst and int_bit_position.
	* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
	* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
	* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
	(extract_constant_from_buffer): Likewise.
	* cp/class.c (build_vbase_pointer_fields): layout_field now
	place_field.
	(get_vfield_offset): Use byte_position.
	(set_rtti_entry): Set OFFSET to ssizetype zero.
	(get_binfo_offset_as_int): Deleted.
	(dfs_record_base_offsets): Use tree_low_cst.
	(dfs_search_base_offsets): Likewise.
	(layout_nonempty_base_or_field): Reflect changes in RLI format
	and call byte_position.
	(layout_empty_base): Convert offset to ssizetype.
	(build_base_field): use rli_size_unit_so_far.
	(dfs_propagate_binfo_offsets): Do computation in proper type.
	(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
	(layout_class_type): Reflect changes in RLI names and fields.
	(finish_struct_1): Set DECL_FIELD_OFFSET.
	* cp/dump.c (dequeue_and_dump): Call bit_position.
	* cp/expr.c (cplus_expand_constant): Use byte_position.
	* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
	* cp/typeck.c (build_component_addr): Use byte_position and don't
	special case for zero offset.
	* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
	(ffecom_tree_canonize_ref_): Likewise.
	* java/class.c (make_field_value): Use byte_position.
	* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
	(java_array_data_offset): Likewise.
	* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
	bzero call.

From-SVN: r32742
2000-03-25 13:34:13 -05:00
Kaveh R. Ghazi
3cce094dd9 rtl.h (rtunion_def): Constify member `rtstr'.
* rtl.h (rtunion_def): Constify member `rtstr'.
	(emit_line_note_after, emit_line_note, emit_line_note_force,
	emit_note, decode_asm_operands): Constify.

	* cse.c (canon_hash): Likewise.

	* dbxout.c (dbxout_block): Likewise.

	* diagnostic.c (file_and_line_for_asm, v_error_for_asm,
	v_warning_for_asm): Likewise.

	* dwarfout.c (function_start_label): Likewise.

	* emit-rtl.c (emit_line_note_after, emit_line_note, emit_note,
	emit_line_note_force): Likewise.

	* final.c (last_filename, asm_insn_count, final_scan_insn,
	output_source_line): Likewise.

	* function.h (struct emit_status): Likewise.

	* gcse.c (hash_expr_1): Likewise.

	* genattr.c (gen_attr, main): Likewise.

	* genattrtab.c (struct function_unit, current_alternative_string,
	write_attr_valueq, n_comma_elts, next_comma_elt, attr_eq,
	attr_numeral, check_attr_test, check_attr_value,
	convert_set_attr_alternative, convert_set_attr,
	compute_alternative_mask, simplify_by_exploding, gen_attr,
	gen_unit): Likewise.

	* genflags.c (gen_insn): Likewise.

	* gengenrtl.c (type_from_format): Likewise.

	* genopinit.c (gen_insn): Likewise.

	* genoutput.c (n_occurrences, process_template, process_template):
	Likewise.

	* ggc-page.c (ggc_set_mark, ggc_mark_if_gcable, ggc_get_size):
	Likewise.

	* ggc-simple.c (ggc_set_mark, ggc_mark_if_gcable, ggc_get_size):
	Likewise.

	* ggc.h (ggc_mark_string, ggc_mark, ggc_mark_if_gcable,
	ggc_set_mark, ggc_get_size): Likewise.

	* objc/objc-act.c (build_module_descriptor, finish_objc): Likewise.

	* optabs.c (init_one_libfunc): Likewise.

	* output.h (assemble_start_function): Likewise.

	* recog.c (decode_asm_operands): Likewise.

	* toplev.c (rest_of_compilation): Likewise.

	* tree.h (emit_line_note_after, emit_line_note,
	emit_line_note_force): Likewise.

	* varasm.c (asm_output_bss, asm_output_aligned_bss,
	asm_emit_uninitialised, assemble_start_function,
	assemble_variable, const_hash, compare_constant_1,
	find_pool_constant, mark_constant_pool, assemble_alias): Likewise.

	* xcoffout.h (DBX_FINISH_SYMBOL): Likewise.

	* alpha/alpha.md (call_vms, call_value_vms): Likewise.

	* arm/aof.h (ASM_OUTPUT_ASCII): Likewise.

	* arm/aout.h (ASM_OUTPUT_ASCII): Likewise.

	* arm/arm-protos.h (output_ascii_pseudo_op, arm_dllexport_name_p,
	arm_dllimport_name_p): Likewise.

	* arm/arm.c (arm_encode_call_attribute, output_ascii_pseudo_op):
	Likewise.

	* arm/arm.h (ASM_OUTPUT_MI_THUNK): Likewise.

	* arm/elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* arm/pe.c (arm_dllexport_name_p, arm_dllimport_name_p,
	arm_mark_dllexport, arm_mark_dllimport,
	arm_pe_encode_section_info): Likewise.

	* arm/telf.h (ASM_OUTPUT_DEF_FROM_DECLS,
	ASM_FINISH_DECLARE_OBJECT): Likewise.

	* arm/thumb.c (thumb_function_prologue): Likewise.

	* arm/thumb.h (ASM_OUTPUT_ASCII): Likewise.

	* avr/avr.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* clipper/clix.h (ASM_OUTPUT_ASCII): Likewise.

	* fx80/fx80.h (ASM_OUTPUT_ASCII): Likewise.

	* i386/cygwin.h (ASM_OUTPUT_SECTION_NAME): Likewise.

	* i386/freebsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* i386/i386-interix.h (ASM_OUTPUT_LIMITED_STRING,
	ASM_OUTPUT_ASCII, ASM_OUTPUT_SECTION_NAME): Likewise.

	* i386/i386-protos.h (asm_output_function_prefix): Likewise.

	* i386/i386.c (asm_output_function_prefix): Likewise.

	* i386/i386elf.h (ASM_OUTPUT_ASCII): Likewise.

	* i386/osfrose.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* i386/ptx4-i.h (ASM_OUTPUT_ASCII): Likewise.

	* i386/sco5.h (ASM_FINISH_DECLARE_OBJECT,
	ASM_OUTPUT_LIMITED_STRING, ASM_OUTPUT_ASCII,
	ASM_OUTPUT_SECTION_NAME): Likewise.

	* i386/sysv4.h (ASM_OUTPUT_ASCII): Likewise.

	* i860/paragon.h (ASM_OUTPUT_ASCII): Likewise.

	* i860/sysv3.h (ASM_OUTPUT_ASCII): Likewise.

	* m32r/m32r.c (m32r_encode_section_info): Likewise.

	* mcore-elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* mcore/mcore.c (mcore_encode_section_info): Likewise.

	* mips/elf.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* mips/elf64.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* mips/iris6.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* mips/mips.h (ASM_OUTPUT_IDENT): Likewise.

	* mips/mips.md (movdi, movsi): Likewise.

	* mips/netbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* netbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* openbsd.h (ASM_FINISH_DECLARE_OBJECT): Likewise.

	* ptx4.h (ASM_FINISH_DECLARE_OBJECT, ASM_OUTPUT_LIMITED_STRING,
	ASM_OUTPUT_ASCII): Likewise.

	* rs6000/rs6000.c (rs6000_allocate_stack_space, output_epilog,
	output_mi_thunk, output_toc): Likewise.

	* rs6000/rs6000.md (movsi): Likewise.

	* rs6000/sysv4.h (ASM_OUTPUT_INT, ASM_OUTPUT_SECTION_NAME): Likewise.

	* tahoe/harris.h (ASM_OUTPUT_ASCII): Likewise.

	* v850/v850.c (print_operand, print_operand_address,
	v850_encode_data_area): Likewise.

ch:
	* grant.c (globalize_decl): Constify a char*.

cp:
	* decl2.c (finish_objects): Constify a char*.

	* method.c (emit_thunk): Likewise.

From-SVN: r32388
2000-03-07 20:39:10 +00:00
Alexandre Oliva
141b581084 gcse.c (compute_can_copy): Adjust if/else blocks from rth's patch from 2000-01-28.
* gcse.c (compute_can_copy): Adjust if/else blocks from rth's
patch from 2000-01-28.

From-SVN: r32375
2000-03-07 03:43:03 +00:00
Jason Merrill
a0ac9e5a4a * gcse.c (dump_hash_table): Really fix error in last change.
From-SVN: r32306
2000-03-03 03:28:43 -05:00
Richard Kenner
21318741bb c-common.c (c_common_nodes_and_builtins): Make sizetype_endlink reference the language-equivalent of sizetype.
* c-common.c (c_common_nodes_and_builtins): Make sizetype_endlink
	reference the language-equivalent of sizetype.
	* c-typeck.c (comptypes): Treat sizetype like its language equivalent.
	* fold-const.c (size_binop, size_diffop): Put back checks.
	* gcse.c (dump_hash_table): Fix minor error in last change.
	* stor-layout.c (set_sizetype): Set TYPE_DOMAIN of sizetype.
	Clear TYPE_{NEXT,MAIN}_VARIANT and TYPE_{POINTER,REFERENCE}_to of
	all sizetypes.
	* cp/typeck.c (comptypes): Treat sizetype like its language equivalent.

From-SVN: r32291
2000-03-02 13:29:56 -05:00
Richard Kenner
c4c8160189 gcse.c: Cleanups throughout: mostly white-space, but also some minor rearrangement of code.
* gcse.c: Cleanups throughout: mostly white-space, but also
	some minor rearrangement of code.

From-SVN: r32264
2000-02-29 15:08:52 -05:00
Richard Henderson
19d3c25c9a flow.c (find_basic_blocks): Remove do_cleanup argument.
* flow.c (find_basic_blocks): Remove do_cleanup argument.
        Break out that code ...
        (cleanup_cfg): ... here.
        (commit_one_edge_insertion): Detect a return instruction being
        emitted to an edge.  Emit a barrier following; clear fallthru.
        (commit_edge_insertions): Verify CFG consistency.
        * function.c (expand_function_start): Kill unused variable.
        (expand_function_end): Likewise.
        (thread_prologue_and_epilogue_insns): Use insert_insn_on_edge
        to insert the epilogue.

        * gcse.c (gcse_main): Adjust for find_basic_blocks change.
        (delete_null_pointer_checks): Likewise.
        * output.h: Likewise.
        * reg-stack.c (reg_to_stack): Likewise.
        * toplev.c (rest_of_compilation): Likewise.  Run
        thread_prologue_and_epilogue_insns after rebuilding the CFG.

From-SVN: r31676
2000-01-28 14:22:50 -08:00
John Wehle
b522962825 gcse.c (insert_insn_end_bb): Use emit_block_insn_before instead of emit_insn_before.
* gcse.c (insert_insn_end_bb): Use emit_block_insn_before
	instead of emit_insn_before.  Also handle NOTE_INSN_BASIC_BLOCK
	when walking backwards to find all the parameter loads when
	the basic block ends in a call.

From-SVN: r31437
2000-01-15 20:46:21 +00:00
Kaveh R. Ghazi
711d877c9e eh-common.h: PROTO -> PARAMS.
* eh-common.h: PROTO -> PARAMS.
	* emit-rtl.c: Likewise.
	* errors.c: Likewise.
	* errors.h: Likewise.
	* except.c: Likewise.
	* except.h: Likewise.
	* explow.c: Likewise.
	* expmed.c: Likewise.
	* expr.c: Likewise.
	* expr.h: Likewise.
	* final.c: Likewise.
	* fix-header.c: Likewise.
	* flow.c: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.
	* function.h: Likewise.
	* gcc.c: Likewise.
	* gcov-io.h: Likewise.
	* gcov.c: Likewise.
	* gcse.c: Likewise.

From-SVN: r31419
2000-01-14 17:14:43 +00:00
Nick Burrett
40d7a3fece gcse.c (delete_null_pointer_checks_1): Cope when get_condition cannot determine the condition.
* gcse.c (delete_null_pointer_checks_1): Cope when
	get_condition cannot determine the condition.

From-SVN: r31347
2000-01-12 03:16:04 -07:00
Jeff Law
dd1bd86318 cse.c (cse_insn): Missing cast added.
* cse.c (cse_insn): Missing cast added.
	* loop.c (loop_reg_used_before_p): Ditto.
	* gcse.c (Pre_gcse, hoist_code): Ditto.
	* varasm.c (decode_rtx_const): Ditto.
	* except.c (push_ehqueue): Ditto.
	* cccp.c (index0): Ditto.
	* toplev.c (main): Useless `&' removed before function name.

From-SVN: r31229
2000-01-04 23:55:02 -07:00
Jan Hubicka
833fc3ad23 gcse.c (try_replace_reg): Do replacements in REG_EQUAL/REG_EQUIV notes too...
* gcse.c (try_replace_reg): Do replacements in REG_EQUAL/REG_EQUIV
	notes too, create one when replacement failed, attempt to simplify
	resulting notes.
	(cprop_insn): Propagate even to registers mentioned only in REG_EQUAL
	or REG_EQUIV notes.

From-SVN: r30992
1999-12-17 11:10:58 +00:00
Jeffrey A Law
6b8cf0c57c basic-block.h: Remove all #defines and prototypes related to integer lists.
* basic-block.h: Remove all #defines and prototypes related to
        integer lists.
        (free_bb_mem, compute_preds_succs): Remove prototype.
        * rtl.h (free_bb_mem): Remove prototype.
        * flow.c (alloc_int_list_node); Remove function.
        (add_inst_list_node, free_int_list, add_pred_succ): Likewise.
        (compute_preds_succs, free_bb_mem): Likewise.
        * gcse.c (gcse_main): Do not call free_bb_mem anymore.
        * toplev.c (rest_of_compilation): Likewise.
        * haifa-sched.c (build_control_flow): Use flow generated edge
        list to build the haifa specific edge list.
        (find_rgns): Use new CFG data structures instead of pred/succ lists.
        (schedule_insns): Do not build pred/succ lists anymore.  Instead
        build the edge table.

From-SVN: r30531
1999-11-15 01:12:29 -07:00
Jeffrey A Law
b71a2ff8fc gcse.c (delete_null_pointer_checks_1): Kill unused s_preds argument.
* gcse.c (delete_null_pointer_checks_1): Kill unused s_preds
        argument.  All callers changed.
        (delete_null_pointer_checks_1): No longer need to compute the
        pred/succ lists.

From-SVN: r30529
1999-11-14 23:18:36 -07:00
Jeffrey A Law
89e606c966 gcse.c (pre_expr_reaches_here_p): Kill CHECK_PRE_COM argument.
* gcse.c (pre_expr_reaches_here_p): Kill CHECK_PRE_COM argument.
        All callers changed.
        (pre_expr_reaches_here_p_work): Likewise.
        (pre_edge_insert): No longer call pre_expr_reaches_here_p.
        * lcm.c (compute_laterin): Fix initialization of LATER.
        (compute_nearerout): Similarly for NEARER.

From-SVN: r30528
1999-11-14 23:12:50 -07:00
Jeffrey A Law
ce72425040 flow.c (compute_flow_dominators): Initially put all blocks on the worklist.
* flow.c (compute_flow_dominators): Initially put all blocks on
        the worklist.
        * lcm.c (compute_antinout_edge, compute_available): Similarly.
        * gcse.c (compute_cprop_avinout): Remove.
        (compute_cprop_data): Use compute_available.
        (delete_null_pointer_checks_1): Use compute_available.

From-SVN: r30484
1999-11-11 02:21:12 -07:00
Jeffrey A Law
bd0eaec24a basic-block.h (compute_available): Returns a void now.
* basic-block.h (compute_available): Returns a void now.
        * gcse.c (one_classic_gcse_pass): Do not expect compute_available
        to return a value anymore.
        * lcm.c (compute_available, compute_antinout_edge): Revamp to use
        worklists.  Fix boundary cases. Compute maximal solutions.
        (compute_laterin, compute_nearerout): Similarly.

From-SVN: r30482
1999-11-10 23:38:15 -07:00
Mark Mitchell
4da896b292 cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc.
* cse.c (delete_trivially_dead_insns): Replace alloca with
	xmalloc/xcalloc.
	* except.c (update_rethrow_references): Likewise.
	(init_eh_nesting_info): Likewise.
	* function.c (identify_blocks): Likewise.
	* gcse.c (dump_hash_table): Likewise.
	* graph.c (print_rtl_graph_with_bb): Likewise.
	* loop.c (combine_movables): Likewise.
	(move_movables): Likewise.
	(count_loop_regs_set): Likewise.
	(strength_reduce): Likewise.
	* profile.c (compute_branch_probabilities): New function, split
	out from ...
	(branch_prob): Here.  Replace alloca with xmalloc/xcalloc.
	* regclass.c (regclass): Likewise.
	* regmove.c (regmove_optimize): Likewise.
	* toplev.c (compile_file): Likewise.
	(main): Don't mess with the stack rlimit.

From-SVN: r30445
1999-11-08 04:56:18 +00:00
Jeffrey A Law
092ae4ba98 gcse.c (post_dominators): Kill.
* gcse.c (post_dominators): Kill.
        (alloc_code_hoist_mem, free_code_hoist_mem); Kill post_dominators.
        (compute_code_hoist_data): Use compute_flow_dominators.  Do not
        pass in a pdom array since we do not need pdoms.
        * haifa-sched.c (schedule_insns): Similarly.
        * flow.c (compute_dominators): Remove dead function.
        (compute_flow_dominators): Do not compute doms or pdoms if the
        caller does not request them.  Split up loop to build doms and
        pdoms.  Use a worklist to compute doms and pdoms.
        * basic-block.h (compute_dominators): Remove prototype.

From-SVN: r30437
1999-11-06 17:36:35 -07:00
Mark Mitchell
0511851c7b gcse.c (struct null_pointer_info): New type.
* gcse.c (struct null_pointer_info): New type.
	(get_bitmap_width): New function.
	(current_block): Remove.
	(nonnull_local): Likewise.
	(nonnull_killed): Likewise.
	(invalidate_nonnull_info): Take a null_pointer_info as input.
	(delete_null_pointer_checks_1): New function.
	(delete_null_pointer_checks): Use it.

From-SVN: r30384
1999-11-03 22:45:45 +00:00
Kaveh R. Ghazi
a8f227e703 flow.c (debug_flow_info): Add prototype.
* flow.c (debug_flow_info): Add prototype.

        * gcc.c (main): Likewise.

        * gcse.c (expr_reaches_here_p_work, pre_expr_reaches_here_p_work):
        Likewise.

        * reload1.c (failed_reload, set_reload_reg): Likewise.

        * mips-tfile.c (main): Likewise.
        (pfatal_with_name, fancy_abort, botch, fatal, catch_signal): Mark
        with ATTRIBUTE_NORETURN.

From-SVN: r30262
1999-10-29 17:51:38 +00:00
Mark Mitchell
5faf03ae77 except.c (free_eh_nesting_info): Free the info itself.
* except.c (free_eh_nesting_info): Free the info itself.
	* function.c (free_after_compilation): Don't free NULL.
	* gcse.c (alloc_pre_mem): Free the temp_bitmap, too.
	(pre_edge_insert): Free inserted.
	* stmt.c (free_stmt_status): Don't free NULL.

From-SVN: r30255
1999-10-29 09:49:23 +00:00
Mark Mitchell
9ed5879d10 gcse.c (delete_null_pointer_checks): Fix typo in this change: Thu Oct 28 02:15:22 1999 Jeffrey A Law (law@cygnus.com).
* gcse.c (delete_null_pointer_checks): Fix typo in this change:
	Thu Oct 28 02:15:22 1999  Jeffrey A Law  (law@cygnus.com).

From-SVN: r30243
1999-10-28 16:42:14 +00:00
Jeffrey A Law
5ae520d023 gcse.c (delete_null_pointer_checks): Only record non-null info for pseudos when examining stores.
* gcse.c (delete_null_pointer_checks): Only record non-null info
        for pseudos when examining stores.

From-SVN: r30231
1999-10-28 03:08:43 -06:00
Mark Mitchell
848323170b rtl.h (note_stores): Add additional paramter.
* rtl.h (note_stores): Add additional paramter.
	* rtlanal.c (reg_set_p_1): Take additional paramter.
	(reg_set_last_1): Likewise.
	(reg_set_p): Adjust call to note_stores.
	(reg_set_last): Likewise.
	(note_stores): Pass data parameter to worker function.
	* alias.c (record_set): Take additional parameter.
	(init_alias_analysis): Pass it.
	* caller-save.c (mark_set_regs): Take additional parameter.
	(save_call_clobbered_regs): Pass NULL to note_stores.
	* combine.c (set_nonzero_bits_and_sign_copies): Take additional
	parameter.
	(record_dead_and_set_regs_1): Likewise.
	(reg_dead_at_p_1): Likewise.
	(combine_instructions): Adjust calls to note_stores.
	(try_combine): Likewise.
	(record_dead_insn): Remove.
	(record_dead_and_set_regs): Adjust calls to note_stores.
	(reg_dead_at_p): Likewise.
	* cse.c (invalidate_skipped_set): Take additional parameter.
	(cse_check_loop_start): Likewise.
	(cse_check_loop_start_value): Remove.
	(cse_set_around_loop): Adjust calls to note_stores.
	* flow.c (notice_stack_pointer_modification): Take additional
	parameter.  Remove duplicate declaration.
	(record_volatile_insns): Adjust calls to note_stores.
	* gcse.c (record_set_info): Take additional parameter.
	(record_last_set_info): Likewise.
	(invalidate_nonnull_info): Likewise.
	(record_set_insn): Remove.
	(compute_sets): Adjust calls to note_stores.
	(last_set_insn): Remove.
	(compute_hash_table): Adjust calls to note_stores.
	(insert_insn_end_bb): Likewise.
	(delete_null_pointer_checks): Likewise.
	* global.c (mark_reg_store): Take additional parameter.
	(mark_reg_clobber): Likewise.
	(reg_becomes_live): Likewise.
	(global_conflicts): Adjust calls to note_stores.
	(build_insn_chain): Likewise.
	* integrate.c (note_modified_parmregs): Take additional parameter.
	(mark_stores): Likewise.  Make it static.
	(save_for_inline_nocopy): Adjust calls to note_stores.
	(try_constants): Likewise.
	* integrate.h (mark_stores): Remove declaration.
	* jump.c (mark_modified_reg): Take additional parameter.
	(thread_jumps): Adjust calls to note_stores.
	* local-alloc.c (validate_equiv_mem_from_store): Take additional
	parameter.
	(no_equiv): Likewise.
	(reg_is_set): Likewise.
	(validate_equiv_mem): Adjust calls to note_stores.
	(update_equiv_regs): Likewise.
	(block_alloc): Likewise.
	* loop.c (note_set_pseudo_multiple_uses_retval): Remove.
	(note_addr_stored): Take additional parameter.
	(note_set_pseudo_multiple_uses): Likewise.
	(record_initial): Likewise.
	(prescan_loop): Adjust calls to note_stores.
	(strength_reduce): Likewise.
	(check_dbra_loop): Likewise.
	* regmove.c (flags_set_1): Take additional paramter.
	(mark_flags_life_zones): Adjust calls to note_stores.
	* reload1.c (mark_not_eliminable): Take additional parameter.
	(forget_old_reloads_1): Likewise.
	(reload_cse_invalidate_rtx): Likewise.
	(reload_cse_check_clobber): Likewise.
	(reload_combine_note_store): Likewise.
	(move2add_note_store): Likewise.
	(reload): Adjust calls to note_stores.
	(reload_as_needed): Likewise.
	(emit_reload_insns): Likewise.
	(reload_cse_regs_1): Likewise.
	(reload_cse_record_set): Adjust calls to reload_cse_invalidate_rtx.
	(reload_combine): Adjust calls to note_stores.
	* resource.c (update_live_status): Take additional paramter.
	(mark_target_live_regs): Adjust calls to note_stores.
	* stupid.c (find_clobbered_regs): Take additional parameter.
	(stupid_life_analysis): Adjust calls to note_stores.

From-SVN: r30221
1999-10-27 19:27:41 +00:00
Robert Lipe
283a25451f gcse.c (expr_reaches_here_p): Use xcalloc and explit free instead of alloca.
* gcse.c (expr_reaches_here_p): Use xcalloc and explit free instead
        of alloca.
        (pre_gcse): Likewise.
        (hoist_expr_reaches_here_p): Likewise.
        (hoist_code): Likewise.
        (pre_expr_reaches_here_p): Replace alloca with xcalloc.   Move core
        code to ...
        (pre_expr_reaches_here_p_work): ... here.
        (expr_reaches_here_p): Replace alloca with xcalloc.   Move core
        code to ...
        (expr_reaches_here_p_work): ... here.

From-SVN: r30207
1999-10-27 05:16:12 +00:00
Kaveh R. Ghazi
36f0e0a60c final.c (peephole): Delete prototype.
* final.c (peephole): Delete prototype.

        * gcse.c (process_insert_insn, pre_edge_insert): Add prototypes.
        (pre_insert_copies): Remove unused variable `bb'.

        * genrecog.c (debug_decision_0, debug_decision_list, main): Add
        prototypes.

        * output.h (peephole): Add prototype.

From-SVN: r30144
1999-10-24 19:23:11 +00:00
Andrew MacLeod
a42cd96552 basic-block.h (pre_edge_lcm, [...]): Prototype for exported functions.
* basic-block.h (pre_edge_lcm, pre_edge_rev_lcm, compute_available):
        Prototype for exported functions.
        (pre_lcm, pre_rev_lcm): Remove prototypes.
        * gcse.c (compute_ae_kill): Add ae_gen and ae_kill as parameters.
        (compute_available): Move to lcm.c, and change parameter order.
        (one_classic_gcse_pass): Call compute_ae_kill with parameters.
        (pre_insert, s_preds, s_succs, num_preds, num_succs): Delete.
        (gcse_main): No longer call compute_preds_succs.  Rebuild the
        set table after reach pre pass.
        (pre_insert_map, pre_delete_map, edge_list): New.
        (alloc_pre_mem): Allocate edge vectors.
        (free_pre_mem): Delete edge vectors.
        (compute_pre_data): Call new edge based lcm routines.
        (process_insert_insn): New function.
        (insert_insn_end_bb): Use it.
        (pre_edge_insert): New function.
        (pre_insert_copy_insn): Formatting fixes.  Update BLOCK_END as
        needed.
        (pre_insert_copies): Revamp using new edge based lcm outputs.
        (pre_delete): Likewise.
        (one_pre_gcse_pass): Insert & remove fake edges to the exit
        block.
        (compute_code_hoist_vbeinout): New new edge based routines.
        * lcm.c: Remove all the old LCM functions.  Replace with new ones
        that work with the new cfg datastructures and work with edges
        instead of blocks.

From-SVN: r30055
1999-10-17 03:21:25 -06:00
Andrew MacLeod
3cce638b2b * gcse.c (hash_scan_set): Remove incorrect ! optimize_size check.
From-SVN: r30054
1999-10-17 02:53:48 -06:00
Richard Henderson
297c333589 gcse.c (hash_expr_1): Add in MEM_ALIAS_SET.
* gcse.c (hash_expr_1): Add in MEM_ALIAS_SET.
        (expr_equiv_p): Reject memories with different alias sets.

From-SVN: r30039
1999-10-16 00:08:27 -07:00
Richard Henderson
5f537f6c86 * gcse.c (delete_null_pointer_checks): Returns void.
From-SVN: r29904
1999-10-11 16:22:41 -07:00
Jeffrey A Law
55f7891bb7 gcse.c (gcse_main): Avoid global optimizations if we have a large number of basic blocks and the...
* gcse.c (gcse_main): Avoid global optimizations if we have a
        large number of basic blocks and the ratio of edges to blocks
        is high.
        (delete_null_pointer_checks): Likewise.

From-SVN: r29882
1999-10-09 23:30:28 -06:00
Jeffrey A Law
bb457bd901 basic-block.h (compute_flow_dominators): Declare.
* basic-block.h (compute_flow_dominators): Declare.

        * gcse.c (alloc_code_hoist_mem): New function.
        (free_code_hoist_mem, compute_code_hoist_vbeinout): Likewise.
        (compute_code_hoist_data, hoist_expr_reaches_here_p): Likewise.
        (hoist_code, one_code_hoisting_pass): Likewise.
        (gcse_main): If optimizing for size, then hoist expressions
        computed in multiple dominated basic blocks.

From-SVN: r29523
1999-09-20 08:53:51 -06:00
Jeffrey A Law
dfdb644f4f gcse.c (invalid_nonnull_info): New function.
* gcse.c (invalid_nonnull_info): New function.
        (delete_null_pointer_checks): Likewise.
        * rtl.h (delete_null_pointer_checks): Declare.
        * toplev.c (rest_of_compilation): Call delete_null_pointer_checks.

From-SVN: r29521
1999-09-20 07:58:33 -06:00
Bernd Schmidt
6baf1cc8f8 Make it possible to prototype port-specific functions (and convert i386 to use this)
From-SVN: r29514
1999-09-20 10:00:03 +00:00
Richard Henderson
76095e2f54 combine.c (SUBST): Break out to a real function do_SUBST.
* combine.c (SUBST): Break out to a real function do_SUBST.
        (SUBST_INT): Likewise.
        * gcse.c (free_pre_mem): Free `temp_bitmap'.
        (pre_insert): Free `inserted'.
        * loop.c (basic_induction_var): Always set `location'.

        * function.c (expand_function_end): Add initial_trampoline as a root.
        * rtl.h (init_varasm_once): Declare.
        * toplev.c (compile_file): Call it.
        * ggc-simple.c (ggc_mark_string_ptr): New.
        (ggc_add_string_root): New.
        (ggc_collect): Disable collection avoidance temporarily.
        * ggc.h (ggc_add_string_root): Declare.
        * except.c (create_rethrow_ref): Use ggc_alloc_string.
        * optabs.c (init_libfuncs): Likewise.
        * varasm.c (named_section): Use ggc_alloc_string.
        (make_function_rtl): Likewise.
        (make_decl_rtl): Likewise.
        (assemble_static_space): Likewise.
        (assemble_trampoline_template): Likewise.
        (output_constant_def): Likewise.
        (force_const_mem): Likewise.
        (mark_const_hash_entry): New.
        (mark_pool_sym_hash_table): New.
        (mark_varasm_state): Use it.
        (init_varasm_once): New.

        * expr.h (init_one_libfunc): Declare.
        * optabs.c (init_one_libfunc): New.
        (init_optabs): Use it.
        * config/gofast.h: Likewise.
        * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Likewise.
        * config/sparc/sparc.h (INIT_TARGET_OPTABS): Likewise.

From-SVN: r29226
1999-09-09 00:07:41 -07:00
Richard Henderson
8a34409df6 reload1.c (eliminate_regs_in_insn): Avoid eliminating the reg notes on a deleted insn.
* reload1.c (eliminate_regs_in_insn): Avoid eliminating the
        reg notes on a deleted insn.
        * gcse.c (hash_expr_1): Use XWINT on a CONST_DOUBLE.

From-SVN: r29076
1999-09-02 21:51:35 -07:00
Richard Henderson
e2bef702d6 dwarf2out.c (dwarf2out_line): Constify `lastfile'.
* dwarf2out.c (dwarf2out_line): Constify `lastfile'.
        * except.c (expand_rethrow): Remove unused variable.
        * expr.c (do_jump_by_parts_greater_rtx): Likewise.
        * flow.c (replace_insns): Likewise.
        (create_edge_list, verify_edge_list): Likewise.
        * gcse.c (cprop_cc0_jump): Protect declaration with HAVE_cc0.

        * genemit.c (gen_expand): Only emit `operands[N]' decl if there
        is special code to run.
        (main): Don't define operands to emit_operand.
        * genrecog.c (main): Don't emit an empty peephole2_insn function.

        * rtl.h (NOTE_BASIC_BLOCK): Use X0BBDEF.

        * alpha/alpha.h (normal_memory_operand): Declare.
        (reg_no_subreg_operand): Declare.
        * alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use HOST_WIDE_INT_PRINT_DEC.

From-SVN: r29061
1999-09-02 10:29:25 -07:00
Bernd Schmidt
21e3a71724 Ignore no-ops in cprop pass.
From-SVN: r28901
1999-08-26 17:33:35 +00:00
Andrew MacLeod
36349f8be4 sbitmap.h (sbitmap_intersection_of_succs): Add prototype.
Wed Aug 25 13:55:47 EDT 1999  Andrew MacLeod  <amacleod@cygnus.com>

	* sbitmap.h (sbitmap_intersection_of_succs): Add prototype.
	(sbitmap_intersection_of_preds, sbitmap_union_of_succs,
	sbitmap_union_of_preds): Add prototypes.
	* sbitmap.c (sbitmap_intersection_of_succs): New function to compute
	the intersection of successors with the new flow graph structures.
	(sbitmap_intersection_of_preds): New function to compute the
	intersection of predecessors with the new flow graph structures.
	(sbitmap_union_of_succs): New function to compute the union of
	successors with the new flow graph structures.
	(sbitmap_union_of_preds): New function to compute the union of
	predecessors with the new flow graph structures.
	* gcse.c (compute_rdm, compute_available): Use new sbitmap routines.
	(expr_reaches_here_p): Use edge and basic_block structures instead
	of s_preds and s_succs.
	(compute_cprop_avinout): Use new sbitmap routines.
	(pre_expr_reaches_here_p): Use edge and basic_block structures instead
	of s_preds and s_succs.
	* flow.c (compute_flow_dominators): Compute dominators using
	edges and basic blocks instead of s_preds and s_succs.

From-SVN: r28866
1999-08-25 18:01:48 +00:00
Bernd Schmidt
cafba4956b gcse.c (find_avail_set): Follow chains of register-register copies.
* gcse.c (find_avail_set): Follow chains of register-register copies.
        Use oprs_not_set_p to guarantee that the returned value can be
        substituted.
        (cprop_insn): Don't verify the return value of find_avail_set with
        oprs_not_set_p.

From-SVN: r28835
1999-08-24 22:24:36 -06:00
Bernd Schmidt
abd535b681 gcse.c (cprop_jump): New function, broken out of cprop_insn.
* gcse.c (cprop_jump): New function, broken out of cprop_insn.
        (cprop_cc0_jump): New function.
        (cprop_insn): Break out new function cprop_jump and use it.
        Also use cprop_cc0_jump for machines with CC0.
        (cprop): Don't crash if cprop_insn turned the insn into a NOTE.

From-SVN: r28834
1999-08-24 21:30:45 -06:00
Kaveh R. Ghazi
6f7d635c0e rtl.h (rtx_format): Constify a char*.
* rtl.h (rtx_format): Constify a char*.

	* rtl.c (rtx_format): Likewise.
	(copy_rtx, copy_most_rtx, read_rtx): Likewise.
	(init_rtl): Use accessor macro, not `rtx_format'.

	* alias.c (rtx_equal_for_memref_p, find_symbolic_term): Constify a
	char*.

	* caller-save.c (mark_referenced_regs): Likewise.

	* combine.c (subst, make_compound_operation, known_cond,
	gen_rtx_combine, update_table_tick, get_last_value_validate,
	use_crosses_set_p, mark_used_regs_combine, move_deaths): Likewise.

	* cse.c (rtx_cost, mention_regs, canon_hash, exp_equiv_p,
	refers_to_p, canon_reg, fold_rtx, cse_process_notes,
	count_reg_usage): Likewise.

	* emit-rtl.c (gen_rtx, copy_rtx_if_shared, reset_used_flags):
	Likewise.

	* final.c (leaf_renumber_regs_insn): Likewise.

	* flow.c (mark_used_regs, find_use_as_address, dump_flow_info,
	dump_edge_info, count_reg_references): Likewise.

	* function.c (fixup_var_refs_1, walk_fixup_memory_subreg,
	fixup_stack_1, purge_addressof_1, instantiate_virtual_regs_1):
	Likewise.

	* gcse.c (oprs_unchanged_p, hash_expr_1, expr_equiv_p,
	oprs_not_set_p, expr_killed_p, compute_transp, find_used_regs,
	add_label_notes): Likewise.

	* genattrtab.c (attr_rtx, attr_copy_rtx, encode_units_mask,
	clear_struct_flag, count_sub_rtxs, count_alternatives,
	compares_alternatives_p, contained_in_p, walk_attr_value,
	write_expr_attr_cache): Likewise.

	* genconfig.c (walk_insn_part): Likewise.

	* genemit.c (max_operand_1, gen_exp): Likewise.

	* genextract.c (walk_rtx): Likewise.

	* genflags.c (num_operands): Likewise.

	* genoutput.c (scan_operands): Likewise.

	* genpeep.c (match_rtx): Likewise.

	* genrecog.c (add_to_sequence): Likewise.

	* haifa-sched.c (may_trap_exp, sched_analyze_2, attach_deaths):
	Likewise.

	* integrate.c (save_constants, copy_for_inline,
	copy_rtx_and_substitute, subst_constants, restore_constants):
	Likewise.

	* jump.c  (mark_jump_label, invert_exp, redirect_exp,
	rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.

	* local-alloc.c (contains_replace_regs, memref_referenced_p):
	Likewise.

	* loop.c (record_excess_regs, rtx_equal_for_loop_p,
	add_label_notes, replace_call_address, count_nonfixed_reads,
	invariant_p, find_single_use_in_loop, find_mem_givs,
	find_life_end, maybe_eliminate_biv_1, update_reg_last_use):
	Likewise.

	* print-rtl.c (reg_names, print_rtx): Likewise.

	* recog.c (validate_replace_rtx_1, find_single_use_1): Likewise.

	* reg-stack.c (stack_regs_mentioned_p, record_label_references,
	record_reg_life_pat, swap_rtx_condition, goto_block_pat,
	print_blocks): Likewise.

	* regclass.c (fix_register, record_address_regs,
	reg_scan_mark_refs): Likewise.

	* regmove.c (stable_but_for_p): Likewise.

	* reload.c (loc_mentioned_in_p, operands_match_p,
	find_reloads_toplevsubst_reg_equivs, find_reloads_address_1,
	copy_replacements, refers_to_regno_for_reload_p,
	refers_to_mem_for_reload_p, find_inc_amount, regno_clobbered_p,
	reload_when_needed_name, reg_class_names, debug_reload_to_stream):
	Likewise.

	* reload1.c (eliminate_regs, scan_paradoxical_subregs,
	delete_address_reloads_1, count_occurrences,
	reload_cse_mem_conflict_p, reload_combine_note_use,
	add_auto_inc_notes): Likewise.

	* resource.c (mark_referenced_resources, mark_set_resources):
	Likewise.

	* rtlanal.c (rtx_unstable_p, rtx_varies_p, rtx_addr_varies_p,
	reg_mentioned_p, regs_set_between_p, modified_between_p,
	modified_in_p, refers_to_regno_p, reg_overlap_mentioned_p,
	rtx_equal_p, volatile_insn_p, volatile_refs_p, side_effects_p,
	may_trap_p, inequality_comparisons_p, replace_rtx, replace_regs,
	jmp_uses_reg_or_mem, for_each_rtx, regno_use_in): Likewise.

	* sched.c (sched_analyze_2, attach_deaths): Likewise.

	* stupid.c (stupid_mark_refs): Likewise.

	* unroll.c (remap_split_bivs): Likewise.

	* varasm.c (mark_constants): Likewise.

	* a29k/a29k.c (uses_local_reg_p): Likewise.

	* alpha/alpha.c (summarize_insn): Likewise.

	* arm/arm.c (symbol_mentioned_p, label_mentioned_p,
	eliminate_lr2ip): Likewise.

	* arm/thumb.c (symbol_mentioned_p, label_mentioned_p): Likewise.

	* i386/i386.c (symbolic_reference_mentioned_p, copy_all_rtx,
	reg_mentioned_in_mem): Likewise.

	* ns32k/ns32k.c (global_symbolic_reference_mentioned_p,
	symbolic_reference_mentioned_p): Likewise.

	* romp/romp.c (unsigned_comparisons_p, hash_rtx): Likewise.

	* sh/sh.c (regs_used, mark_use): Likewise.

	* vax/vax.c (vax_rtx_cost): Likewise.

From-SVN: r28784
1999-08-20 23:05:25 +00:00
Bernd Schmidt
49ad7cfa7a Include function.h in most files.
Include function.h in most files.  Remove most of the global variables
duplicated in function.h.  Add accessor macros for them which access
current_function.  Delete INLINE_HEADER rtx and related code, replace
with code using struct function to store inlining related data.

From-SVN: r28626
1999-08-09 14:00:21 +00:00
Bernd Schmidt
05f6f07cc6 gcse.c (hash_scan_set): Treat SYMBOL_REFs like CONST_INTs.
* gcse.c (hash_scan_set): Treat SYMBOL_REFs like CONST_INTs.
        (cprop_insn): Treat SYMBOL_REFs like CONST_INTs.

From-SVN: r28582
1999-08-07 02:13:28 -06:00
Jeff Law
b1d26727ac gcse.c (insert_insn_end_bb): Correct placement of insns when the current block starts with a CODE_LABEL and...
�
        * gcse.c (insert_insn_end_bb): Correct placement of insns when the
        current block starts with a CODE_LABEL and ends with a CALL and
        we can not find all the argument setup instructions for the CALL.

From-SVN: r27321
1999-06-02 18:19:42 -06:00
Jeff Law
6e9a3c382d gcse.c (cprop_insn): Do not try to simplify a simple jump.
8
        * gcse.c (cprop_insn): Do not try to simplify a simple jump.

From-SVN: r26846
1999-05-09 06:25:03 -06:00
Bernd Schmidt
695ab36a1f Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
        * gcse.c (compute_local_properties): If setp is nonzero, clear
        TRANSP instead of setting it to all ones.

From-SVN: r26528
1999-04-17 14:33:24 -07:00
Zack Weinberg
01198c2f1f c-aux-info.c, [...]: Include toplev.h for real declaration of trim_filename.
1999-04-17 20:11 -0400  Zack Weinberg  <zack@rabi.columbia.edu>
	* c-aux-info.c, emit-rtl.c, explow.c, expmed.c, gcse.c,
	haifa-sched.c, optabs.c, reorg.c, resource.c, sched.c: Include
	toplev.h for real declaration of trim_filename.
	* Makefile.in: Update dependencies.

From-SVN: r26523
1999-04-17 17:14:58 +00:00
Richard Henderson
359da67d8a flow.c (find_basic_blocks): New argument `do_cleanup'.
* flow.c (find_basic_blocks): New argument `do_cleanup'.
        Conditionally call delete_unreachable_blocks.
        (free_basic_block_vars): Zero ENTRY/EXIT data.
        (allocate_for_life_analysis): Kill.  Split into...
        (allocate_bb_life_data, allocate_reg_life_data): ... new functions.
        (life_analysis_1): Update.
        * gcse.c (gcse_main): Update find_basic_blocks call.
        * toplev.c (rest_of_compilation): Likewise.
        * stupid.c (stupid_life_analysis): Update life data calls.
        * rtl.h, output.h: Update prototypes.

From-SVN: r26090
1999-03-31 04:41:03 -08:00
Jeffrey A Law
a65f3558e9 gcse.c (dump_hash_table): Fix whitespace in declaration.
* gcse.c (dump_hash_table): Fix whitespace in declaration.
	(compute_transpout): Renamed from pre_compute_transpout.
	(compute_pre_*): Deleted
	(pre_expr_reaches_here_p): New argument, CHECK_PRE_COMP.  All
	callers changed.
	(insert_insn_end_bb): Renamed from pre_insert_insn.
	(pre_*): Delete unused variables.  Only leave local properties and
	global redundant/optimal computation points.
	(alloc_pre_mem, free_pre_mem): Corresponding changes.
	(compute_pre_data): Simplify and call pre_lcm to run the lazy
	code motion dataflow analysis.
	(pre_insert, pre_insert_copies, pre_delete): Revamp to use LCM
	based redundant and optimal computation points.

From-SVN: r25886
1999-03-21 13:49:10 -07:00
Jeffrey A Law
3524fe0339 gcse.c (compute_pre_local_properties): Delete.
* gcse.c (compute_pre_local_properties): Delete.
        (compute_pre_data): Use compute_local_properties instead of
        compute_pre_local_properties.

From-SVN: r25678
1999-03-10 14:36:35 -07:00
Jeffrey A Law
b5ce41ff0f gcse.c: More comments, whitespace and similar fixes.
* gcse.c: More comments, whitespace and similar fixes.
        (dump_cuid_table, maybe_set_rd_gen, dump_cprop_data): Delete.
        (dump_pre_data, compute_cprop_local_properties): Likewise.
        (one_classic_gcse_pass): Lose unused argument.  All callers changed.
        (compute_hash_table, compute_expr_hash_table): Likewise.
        (compute_set_hash_table, one_pre_gcse_pass, mark_call): Likewise.
        (cprop_insn, cprop, one_cprop_pass): Add new argument ALTER_JUMPS.
        All callers changed.  Only alter jumps if ALTER_JUMPS is nonzero.
        Lose unused argument.
        (gcse_main): Always run a cprop pass after finishing global cse.
        (compute_local_properties): New function.
        (hash_scan_pat, hash_scan_insn): No longer call maybe_set_rd_gen.
        (compute_cprop_data): Use compute_local_properties.

From-SVN: r25677
1999-03-10 14:29:44 -07:00
Jeff Law
ac7c5af52f s/ /<tab>/g
From-SVN: r25675
1999-03-10 13:18:59 -07:00
Jeffrey A Law
f4e584dc0f gcse.c: Update various comments.
* gcse.c: Update various comments.
        (current_function_calls_longjmp): Delete declaration.

From-SVN: r25674
1999-03-10 13:14:05 -07:00
Jeffrey A Law
e78d9500be gcse.c (run_jump_opt_after_gcse): New variable.
* gcse.c (run_jump_opt_after_gcse): New variable.
        (gcse_main): Returns an integer.
        (hash_scan_set): Record initializations from CONST_DOUBLEs too.
        (try_replace_reg): Update some comments.
        (cprop_insn): Allow propagation into some JUMP_INSNs too.
        * rtl.h (gcse_main): Update prototype.
        * toplev.c (rest_of_compilation): If gcse_main returns nonzero,
        then run a jump optimization pass.
        * jump.c (delete_barrier_successors): Delete nop jumps too.

From-SVN: r25673
1999-03-10 12:45:18 -07:00
Kaveh R. Ghazi
dff01034e5 c-aux-info.c (data_type, [...]): Qualify a char* with the `const' keyword.
* c-aux-info.c (data_type, affix_data_type, gen_decl,
        gen_formal_list_for_type, gen_formal_list_for_func_def, gen_type):
        Qualify a char* with the `const' keyword.
        * c-common.c (declare_hidden_char_array, add_attribute, if_elt,
        declare_function_name, decl_attributes, format_char_info,
        check_format_info, binary_op_error): Likewise.
        * cexp.y (yyerror, error, pedwarn, warning, token): Likewise.
        * gcse.c (dump_hash_table): Likewise.
        * integrate.c (function_cannot_inline_p): Likewise
        * optabs.c: Include insn-config.h earlier.
        (init_libfuncs, init_integral_libfuncs, init_floating_libfuncs):
        Qualify a char* with the `const' keyword.
        * real.c (asctoe24, asctoe53, asctoe64, asctoe113, asctoe,
        asctoeg, mtherr, ereal_atof): Likewise.
        * real.h (ereal_atof): Likewise.
        * sbitmap.c (dump_sbitmap_vector): Likewise.
        * sbitmap.h (dump_sbitmap_vector): Likewise.
        * stmt.c (nesting, n_occurrences, expand_start_case): Likewise.
        * toplev.c (rest_of_compilation): Likewise.
        * tree.h (function_cannot_inline_p, expand_start_case): Likewise.

From-SVN: r25614
1999-03-06 05:34:26 +00:00
Joern Rennecke
db35306d6f Typo fix in comment.
From-SVN: r25410
1999-02-24 16:54:38 +00:00