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Author SHA1 Message Date
Vladimir Makarov b17ec42d4c re PR rtl-optimization/61215 (ICE in gen_add2_insn, at optabs.c:4718 when building wine-1.7.19) 
2014-05-22  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/61215
	* lra-elelimination.c (lra_eliminate_regs_1): Don't use
	simplify_gen_subreg until final substitution.

From-SVN: r210838
 2014-05-23 01:52:01 +00:00
Richard Sandiford 23a5b65a92 Update copyright years in gcc/ 
From-SVN: r206289
 2014-01-02 22:23:26 +00:00
David Malcolm 11cd3bed28 Eliminate FOR_EACH_BB macro. 
gcc/
	* basic-block.h (FOR_EACH_BB): Eliminate macro.

	* asan.c (transform_statements, execute_sanopt): Eliminate
	use of FOR_EACH_BB in favor of FOR_EACH_BB_FN, to make use of cfun
	explicit.
	* auto-inc-dec.c (rest_of_handle_auto_inc_dec): Likewise.
	* bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges,
	set_edge_can_fallthru_flag, fix_up_fall_thru_edges,
	fix_crossing_unconditional_branches, add_reg_crossing_jump_notes,
	insert_section_boundary_note, rest_of_handle_reorder_blocks,
	duplicate_computed_gotos): Likewise.
	* cfg.c (clear_edges, compact_blocks, brief_dump_cfg): Likewise.
	* cfganal.c (find_unreachable_blocks, add_noreturn_fake_exit_edges,
	compute_dominance_frontiers_1, single_pred_before_succ_order): Likewise.
	* cfgbuild.c (find_many_sub_basic_blocks): Likewise.
	* cfgcleanup.c (try_optimize_cfg, delete_dead_jumptables): Likewise.
	* cfgexpand.c (add_scope_conflicts, discover_nonconstant_array_refs):
	Likewise.
	* cfgloop.c (flow_loops_cfg_dump, get_loop_body, record_loop_exits,
	verify_loop_structure): Likewise.
	* cfgloopanal.c (mark_loop_exit_edges): Likewise.
	* cfgrtl.c (compute_bb_for_insn, find_partition_fixes,
	verify_hot_cold_block_grouping, purge_all_dead_edges,
	fixup_abnormal_edges, record_effective_endpoints,
	outof_cfg_layout_mode, fixup_reorder_chain, force_one_exit_fallthru,
	break_superblocks): Likewise.
	* cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges,
	cgraph_rebuild_references): Likewise.
	* combine-stack-adj.c (combine_stack_adjustments): Likewise.
	* combine.c (delete_noop_moves, create_log_links,
	combine_instructions): Likewise.
	* config/arm/arm.c (thumb1_reorg, thumb2_reorg): Likewise.
	* config/bfin/bfin.c (bfin_gen_bundles, reorder_var_tracking_notes):
	Likewise.
	* config/c6x/c6x.c (c6x_gen_bundles, conditionalize_after_sched,
	c6x_reorg): Likewise.
	* config/epiphany/resolve-sw-modes.c (resolve_sw_modes): Likewise.
	* config/frv/frv.c (frv_optimize_membar): Likewise.
	* config/i386/i386.c (ix86_finalize_stack_realign_flags): Likewise.
	* config/ia64/ia64.c (ia64_reorg): Likewise.
	* config/mips/mips.c (mips_annotate_pic_calls): Likewise.
	* config/picochip/picochip.c (reorder_var_tracking_notes): Likewise.
	* config/rs6000/rs6000.c (rs6000_alloc_sdmode_stack_slot): Likewise.
	* config/s390/s390.c (s390_regs_ever_clobbered): Likewise.
	* config/sh/sh_treg_combine.cc (sh_treg_combine::execute): Likewise.
	* config/spu/spu.c (spu_machine_dependent_reorg): Likewise.
	* config/tilegx/tilegx.c (tilegx_gen_bundles,
	reorder_var_tracking_notes): Likewise.
	* config/tilepro/tilepro.c (tilepro_gen_bundles,
	reorder_var_tracking_notes): Likewise.
	* coverage.c (coverage_compute_cfg_checksum): Likewise.
	* cprop.c (compute_hash_table_work, compute_cprop_data,
	local_cprop_pass, find_implicit_sets): Likewise.
	* cse.c (cse_condition_code_reg): Likewise.
	* dce.c (prescan_insns_for_dce): Likewise.
	* df-core.c (df_compact_blocks): Likewise.
	* df-problems.c (df_word_lr_alloc): Likewise.
	* df-scan.c (df_scan_start_dump, df_scan_blocks, df_insn_rescan_all,
	df_update_entry_exit_and_calls): Likewise.
	* dominance.c (calculate_dominance_info, verify_dominators,
	debug_dominance_info): Likewise.
	* dse.c (dse_step5_nospill): Likewise.
	* except.c (finish_eh_generation): Likewise.
	* final.c (compute_alignments): Likewise.
	* function.c (thread_prologue_and_epilogue_insns,
	rest_of_match_asm_constraints): Likewise.
	* gcse.c (compute_hash_table_work, prune_expressions,
	compute_pre_data, compute_code_hoist_vbeinout, hoist_code,
	calculate_bb_reg_pressure, compute_ld_motion_mems): Likewise.
	* gimple-iterator.c (gsi_commit_edge_inserts): Likewise.
	* gimple-ssa-isolate-paths.c (find_implicit_erroneous_behaviour,
	find_explicit_erroneous_behaviour): Likewise.
	* graphite-sese-to-poly.c (rewrite_reductions_out_of_ssa,
	rewrite_cross_bb_scalar_deps_out_of_ssa): Likewise.
	* haifa-sched.c (haifa_sched_init): Likewise.
	* hw-doloop.c (discover_loops, set_bb_indices, reorder_loops):
	Likewise.
	* ifcvt.c (if_convert): Likewise.
	* init-regs.c (initialize_uninitialized_regs): Likewise.
	* ipa-prop.c (ipcp_transform_function): Likewise.
	* ipa-pure-const.c (analyze_function): Likewise.
	* ipa-split.c (find_split_points, execute_split_functions): Likewise.
	* ira-build.c (form_loop_tree): Likewise.
	* ira-costs.c (find_costs_and_classes): Likewise.
	* ira-emit.c (emit_moves, add_ranges_and_copies, ira_emit): Likewise.
	* ira.c (decrease_live_ranges_number, compute_regs_asm_clobbered,
	mark_elimination, update_equiv_regs, find_moveable_pseudos,
	split_live_ranges_for_shrink_wrap, allocate_initial_values): Likewise.
	* jump.c (mark_all_labels): Likewise.
	* lcm.c (compute_laterin, compute_insert_delete, compute_available,
	compute_nearerout, compute_rev_insert_delete): Likewise.
	* loop-init.c (fix_loop_structure): Likewise.
	* loop-invariant.c (calculate_loop_reg_pressure): Likewise.
	* lower-subreg.c (decompose_multiword_subregs,
	decompose_multiword_subregs): Likewise.
	* lra-assigns.c (assign_by_spills): Likewise.
	* lra-coalesce.c (lra_coalesce): Likewise.
	* lra-constraints.c (lra_inheritance, remove_inheritance_pseudos):
	Likewise.
	* lra-eliminations.c (lra_init_elimination): Likewise.
	* lra-spills.c (assign_spill_hard_regs, spill_pseudos,
	lra_final_code_change): Likewise.
	* lra.c (remove_scratches, check_rtl, has_nonexceptional_receiver,
	update_inc_notes): Likewise.
	* mcf.c (adjust_cfg_counts): Likewise.
	* mode-switching.c (optimize_mode_switching): Likewise.
	* modulo-sched.c (rest_of_handle_sms): Likewise.
	* omp-low.c (optimize_omp_library_calls, expand_omp_taskreg,
	expand_omp_target): Likewise.
	* postreload-gcse.c (alloc_mem, compute_hash_table): Likewise.
	* postreload.c (reload_cse_regs_1): Likewise.
	* predict.c (strip_predict_hints, tree_bb_level_predictions,
	tree_estimate_probability, expensive_function_p,
	estimate_bb_frequencies, compute_function_frequency): Likewise.
	* profile.c (is_inconsistent, compute_branch_probabilities,
	branch_prob): Likewise.
	* ree.c (find_removable_extensions): Likewise.
	* reg-stack.c (compensate_edges, convert_regs, reg_to_stack): Likewise.
	* regcprop.c (copyprop_hardreg_forward): Likewise.
	* reginfo.c (init_subregs_of_mode): Likewise.
	* regrename.c (regrename_analyze): Likewise.
	* regstat.c (regstat_compute_ri, regstat_compute_calls_crossed):
	Likewise.
	* reload1.c (has_nonexceptional_receiver, reload,
	calculate_elim_costs_all_insns): Likewise.
	* resource.c (init_resource_info, free_resource_info): Likewise.
	* sched-ebb.c (schedule_ebbs): Likewise.
	* sched-rgn.c (is_cfg_nonregular, find_single_block_region,
	haifa_find_rgns, sched_rgn_local_init): Likewise.
	* sel-sched-dump.c (sel_dump_cfg_2): Likewise.
	* sel-sched-ir.c (init_lv_sets, free_lv_sets,
	make_regions_from_the_rest): Likewise.
	* sese.c (build_sese_loop_nests, sese_build_liveouts): Likewise.
	* stack-ptr-mod.c (notice_stack_pointer_modification): Likewise.
	* store-motion.c (compute_store_table, build_store_vectors,
	one_store_motion_pass): Likewise.
	* tracer.c (tail_duplicate): Likewise.
	* trans-mem.c (compute_transaction_bits): Likewise.
	* tree-call-cdce.c (tree_call_cdce): Likewise.
	* tree-cfg.c (replace_loop_annotate, factor_computed_gotos,
	fold_cond_expr_cond, make_edges, assign_discriminators,
	make_abnormal_goto_edges, cleanup_dead_labels, group_case_labels,
	dump_cfg_stats, gimple_verify_flow_info, print_loop,
	execute_fixup_cfg): Likewise.
	* tree-cfgcleanup.c (cleanup_tree_cfg_1, merge_phi_nodes): Likewise.
	* tree-complex.c (init_dont_simulate_again, tree_lower_complex):
	Likewise.
	* tree-dfa.c (collect_dfa_stats, dump_enumerated_decls): Likewise.
	* tree-eh.c (execute_lower_resx, execute_lower_eh_dispatch,
	mark_reachable_handlers): Likewise.
	* tree-emutls.c (lower_emutls_function_body): Likewise.
	* tree-if-conv.c (main_tree_if_conversion): Likewise.
	* tree-inline.c (optimize_inline_calls): Likewise.
	* tree-into-ssa.c (rewrite_into_ssa, update_ssa): Likewise.
	* tree-nrv.c (tree_nrv, execute_return_slot_opt): Likewise.
	* tree-object-size.c (compute_object_sizes): Likewise.
	* tree-outof-ssa.c (eliminate_useless_phis, rewrite_trees,
	insert_backedge_copies, tree_profiling): Likewise.
	* tree-scalar-evolution.c (scev_const_prop): Likewise.
	* tree-sra.c (scan_function, sra_modify_function_body,
	propagate_dereference_distances, ipa_sra_modify_function_body,
	convert_callers): Likewise.
	* tree-ssa-ccp.c (ccp_initialize, execute_fold_all_builtins): Likewise.
	* tree-ssa-coalesce.c (build_ssa_conflict_graph): Likewise.
	create_outofssa_var_map, coalesce_partitions): Likewise.
	* tree-ssa-copy.c (init_copy_prop): Likewise.
	* tree-ssa-copyrename.c (rename_ssa_copies): Likewise.
	* tree-ssa-dce.c (find_obviously_necessary_stmts,
	eliminate_unnecessary_stmts): Likewise.
	* tree-ssa-dom.c (free_all_edge_infos, tree_ssa_dominator_optimize):
	Likewise.
	* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Likewise.
	* tree-ssa-live.c (clear_unused_block_pointer, remove_unused_locals,
	new_tree_live_info, calculate_live_on_exit, dump_live_info,
	analyze_memory_references, fill_always_executed_in,
	tree_ssa_lim_finalize): Likewise.
	* tree-ssa-loop-manip.c (find_uses_to_rename, verify_loop_closed_ssa):
	Likewise.
	* tree-ssa-math-opts.c (execute_cse_reciprocals, execute_cse_sincos,
	execute_optimize_bswap, execute_optimize_widening_mul): Likewise.
	* tree-ssa-propagate.c (substitute_and_fold): Likewise.
	* tree-ssa-structalias.c (compute_points_to_sets): Likewise.
	* tree-ssa-tail-merge.c (find_same_succ, reset_cluster_vectors):
	Likewise.
	* tree-ssa-ter.c (find_replaceable_exprs): Likewise.
	* tree-ssa-threadupdate.c (thread_through_all_blocks): Likewise.
	* tree-ssa-uncprop.c (associate_equivalences_with_edges,
	tree_ssa_uncprop): Likewise.
	* tree-ssa-uninit.c (warn_uninitialized_vars,
	execute_late_warn_uninitialized): Likewise.
	* tree-ssa.c (verify_ssa, execute_update_addresses_taken): Likewise.
	* tree-stdarg.c (check_all_va_list_escapes, execute_optimize_stdarg):
	Likewise.
	* tree-switch-conversion.c (do_switchconv): Likewise.
	* tree-vect-generic.c (expand_vector_operations): Likewise.
	* tree-vectorizer.c (adjust_simduid_builtins, note_simd_array_uses,
	execute_vect_slp): Likewise.
	* tree-vrp.c (check_all_array_refs, remove_range_assertions,
	vrp_initialize, identify_jump_threads, instrument_memory_accesses):
	Likewise.
	* ubsan.c (ubsan_pass): Likewise.
	* value-prof.c (verify_histograms, gimple_value_profile_transformations,
	gimple_find_values_to_profile): Likewise.
	* var-tracking.c (vt_find_locations, dump_dataflow_sets, vt_emit_notes,
	vt_initialize, delete_debug_insns, vt_finalize): Likewise.

gcc/testsuite/
	* g++.dg/plugin/selfassign.c (execute_warn_self_assign): Eliminate
	use of FOR_EACH_BB in favor of FOR_EACH_BB_FN, to make use of cfun
	explicit.
	* gcc.dg/plugin/selfassign.c (execute_warn_self_assign): Likewise.

From-SVN: r205828
 2013-12-09 21:06:06 +00:00
Vladimir Makarov 8d49e7ef0a re PR target/57293 (not needed frame pointers on IA-32 (performance regression?)) 
2013-11-28  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/57293
	* ira.h (ira_setup_eliminable_regset): Remove parameter.
	* ira.c (ira_setup_eliminable_regset): Ditto.  Add
	SUPPORTS_STACK_ALIGNMENT for crtl->stack_realign_needed.
	Don't call lra_init_elimination.
	(ira): Call ira_setup_eliminable_regset without arguments.
	* loop-invariant.c (calculate_loop_reg_pressure): Remove argument
	from ira_setup_eliminable_regset call.
	* gcse.c (calculate_bb_reg_pressure): Ditto.
	* haifa-sched.c (sched_init): Ditto.
	* lra.h (lra_init_elimination): Remove the prototype.
	* lra-int.h (lra_insn_recog_data): New member sp_offset.  Move
	used_insn_alternative upper.
	(lra_eliminate_regs_1): Add one more parameter.
	(lra-eliminate): Ditto.
	* lra.c (lra_invalidate_insn_data): Set sp_offset.
	(setup_sp_offset): New.
	(lra_process_new_insns): Call setup_sp_offset.
	(lra): Add argument to lra_eliminate calls.
	* lra-constraints.c (get_equiv_substitution): Rename to get_equiv.
	(get_equiv_with_elimination): New.
	(process_addr_reg): Call get_equiv_with_elimination instead of
	get_equiv_substitution.
	(equiv_address_substitution): Ditto.
	(loc_equivalence_change_p): Ditto.
	(loc_equivalence_callback, lra_constraints): Ditto.
	(curr_insn_transform): Ditto.  Print the sp offset
	(process_alt_operands): Prevent stack pointer reloads.
	(lra_constraints): Remove one argument from lra_eliminate call.
	Move it up.  Mark used hard regs bfore it.  Use
	get_equiv_with_elimination instead of get_equiv_substitution.
	* lra-eliminations.c (lra_eliminate_regs_1): Add parameter and
	assert for param values combination.  Use sp offset.  Add argument
	to lra_eliminate_regs_1 calls.
	(lra_eliminate_regs): Add argument to lra_eliminate_regs_1 call.
	(curr_sp_change): New static var.
	(mark_not_eliminable): Add parameter.  Update curr_sp_change.
	Don't prevent elimination to sp if we can calculate its change.
	Pass the argument to mark_not_eliminable calls.
	(eliminate_regs_in_insn): Add a parameter.  Use sp offset.  Add
	argument to lra_eliminate_regs_1 call.
	(update_reg_eliminate): Move calculation of hard regs for spill
	lower.  Switch off lra_in_progress temporarily to generate regs
	involved into elimination.
	(lra_init_elimination): Rename to init_elimination.  Make it
	static.  Set up insn sp offset, check the offsets at the end of
	BBs.
	(process_insn_for_elimination): Add parameter.  Pass its value to
	eliminate_regs_in_insn.
	(lra_eliminate): : Add parameter.  Pass its value to
	process_insn_for_elimination.  Add assert for param values
	combination.  Call init_elimination.  Don't update offsets in
	equivalence substitutions.
	* lra-spills.c (assign_mem_slot): Don't call lra_eliminate_regs_1
	for created stack slot.
	(remove_pseudos): Call lra_eliminate_regs_1 before changing memory
	onto stack slot.

2013-11-28  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/57293
	* gcc.target/i386/pr57293.c: New.

From-SVN: r205498
 2013-11-28 21:45:21 +00:00
Vladimir Makarov 80f466c4a6 lra-constraints.c (process_alt_operand): Calculate scratch_p and use it. 
2013-10-02  Vladimir Makarov  <vmakarov@redhat.com>

	* lra-constraints.c (process_alt_operand): Calculate scratch_p and
	use it.  Use smaller increase for scratch.  Don't increase reject
	for early clobber scratch.
	* lra-eliminations.c (eliminate_regs_in_insn): Remove all insns
	setting eliminated regs except setting fp from hfp.
	(lra_eliminate): Check lra_insn_recog_data on NULL.

From-SVN: r203147
 2013-10-03 00:35:43 +00:00
Jan-Benedict Glaw 522d4efcd3 lra-eliminations.c (init_elim_table): Guard value_p. 
2013-09-27  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* lra-eliminations.c (init_elim_table): Guard value_p.

From-SVN: r202991
 2013-09-27 20:20:35 +00:00
Richard Sandiford f91aec98e2 cse.c (count_reg_usage): Handle INT_LIST. 
gcc/
	* cse.c (count_reg_usage): Handle INT_LIST.
	* lra-eliminations.c (lra_eliminate_regs_1): Likewise.
	* reginfo.c (reg_scan_mark_refs): Likewise.
	* reload1.c (eliminate_regs_1): Likewise.

From-SVN: r202969
 2013-09-27 11:17:34 +00:00
Vladimir Makarov ecafcf0577 re PR middle-end/58335 (S/390: reload vs lra regression - testcase builtin-in-setjmp) 
2013-09-12  Vladimir Makarov  <vmakarov@redhat.com>

	PR middle-end/58335
	* lra-eliminations (remove_reg_equal_offset_note): New.
	(eliminate_regs_in_insn): Rewrite frame pointer to hard frame
	pointer elimination with using remove_reg_equal_offset_note.

From-SVN: r202536
 2013-09-12 18:23:09 +00:00
Vladimir Makarov 5a107a0f0c ira.c (update_equiv_regs): Add insn having equiv memory even if it is not lhs of the insn. 
2013-05-07  Vladimir Makarov  <vmakarov@redhat.com>

	* ira.c (update_equiv_regs): Add insn having equiv memory even if
	it is not lhs of the insn.
	(setup_reg_equiv): Remove insn having equiv memory which it is not
	lhs of the insn.
	* lra-constraints.c (process_address): Try to improve generation
	code for address base + disp.
	(lra_constraints): Make correct the code for checking insn setting
	up backward equivalence.  Remove insn only if it is in the init
	insn list.
	* lra-eliminations.c (update_reg_eliminate): Change return value.
	(lra_eliminate): Use the result.

From-SVN: r198695
 2013-05-07 19:29:05 +00:00
Vladimir Makarov 2c62cbaaf1 rtl.h (struct rtx_def): Add comment for field jump. 
2013-04-26  Vladimir Makarov  <vmakarov@redhat.com>

	* rtl.h (struct rtx_def): Add comment for field jump.
	(LRA_SUBREG_P): New macro.
	* recog.c (register_operand): Check LRA_SUBREG_P.
	* lra.c (lra): Add note at the end of RTL code. Align non-empty
	stack frame.
	* lra-spills.c (lra_spill): Align stack after spilling pseudos.
	(lra_final_code_change): Skip subreg change for operators.
	* lra-eliminations.c (eliminate_regs_in_insn): Make return earlier
	if there are no operand changes.
	* lra-constraints.c (curr_insn_set): New.
	(match_reload): Set LRA_SUBREG_P.
	(emit_spill_move): Ditto.
	(check_and_process_move): Use curr_insn_set. Process only single
	set insns.  Don't initialize sec_mem_p and change_p.
	(simplify_operand_subreg): Use LRA_SUBREG_P.
	(reg_in_class_p): New function.
	(process_alt_operands): Use it.  Use #if HAVE_ATTR_enabled instead
	of #ifdef.  Add code to remove cycling.
	(process_address): Check EXTRA_CONSTRAINT_STR. Process even if
	non-null disp.  Reload inner instead of disp when base and index
	are null.  Try to put lo_sum into register.
	(EBB_PROBABILITY_CUTOFF): Redefine probability in percents.
	(check_and_process_move): Move code for move cost check to
	simple_move_p.  Remove equiv_substitution.
	(simple_move_p): New function.
	(curr_insn_transform): Initialize sec_mem_p and change_p.  Set up
	curr_insn_set.  Call check_and_process_move only for single set
	insns.  Use the new function.  Move call of check_and_process_move
	after operand equiv substitution and address process.

From-SVN: r198344
 2013-04-26 18:11:35 +00:00
Vladimir Makarov 0ae24cc897 revert: rtl.h (struct rtx_def): ... 
2013-04-24  Vladimir Makarov  <vmakarov@redhat.com>

	Revert:
	2013-04-24  Vladimir Makarov  <vmakarov@redhat.com>
	* rtl.h (struct rtx_def): ...

From-SVN: r198266
 2013-04-24 22:33:06 +00:00
Vladimir Makarov f6ce35ac7c rtl.h (struct rtx_def): Add comment for field jump. 
2013-04-24  Vladimir Makarov  <vmakarov@redhat.com>

        * rtl.h (struct rtx_def): Add comment for field jump.
	(LRA_SUBREG_P): New macro.
	* recog.c (register_operand): Check LRA_SUBREG_P.
	* lra.c (lra): Add note at the end of RTL code. Align non-empty
	stack frame.
	* lra-spills.c (lra_spill): Align stack after spilling pseudos.
	(lra_final_code_change): Skip subreg change for operators.
	* lra-eliminations.c (eliminate_regs_in_insn): Make return earlier
	if there are no operand changes.
	* lra-constraints.c (curr_insn_set): New.
	(match_reload): Set LRA_SUBREG_P.
	(emit_spill_move): Ditto.
	(check_and_process_move): Use curr_insn_set. Process only single
	set insns.  Don't initialize sec_mem_p and change_p.
	(simplify_operand_subreg): Use LRA_SUBREG_P.
	(reg_in_class_p): New function.
	(process_alt_operands): Use it.  Use #if HAVE_ATTR_enabled instead
	of #ifdef.  Add code to remove cycling.
	(process_address): Check EXTRA_CONSTRAINT_STR. Process even if
	non-null disp.  Reload inner instead of disp when base and index
	are null.  Try to put lo_sum into register.
	(EBB_PROBABILITY_CUTOFF): Redefine probability in percents.
        (check_and_process_move): Move code for move cost check to
	simple_move_p.  Remove equiv_substitution.
        (simple_move_p): New function.
	(curr_insn_transform): Initialize sec_mem_p and change_p.  Set up
	curr_insn_set.  Call check_and_process_move only for single set
	insns.  Use the new function.  Move call of check_and_process_move
	after operand equiv substitution and address process.

From-SVN: r198252
 2013-04-24 15:45:42 +00:00
Shiva Chen d70a81dddc lra-assigns.c (find_hard_regno_for): Use lra_reg_val_equal_p to check the register content is equal or not. 
2013-04-23  Shiva Chen  <shiva0217@gmail.com>

        * lra-assigns.c (find_hard_regno_for): Use lra_reg_val_equal_p
        to check the register content is equal or not.
        * lra-constraints.c (match_reload): Use lra_assign_reg_val
        to assign register content record.
        * lra-eliminations.c (update_reg_eliminate): Use
	lra_update_reg_val_offset to update register content offset.
        * lra-int.h (struct lra_reg): Add offset member.
        (lra_reg_val_equal_p): New static inline function.
        (lra_update_reg_val_offset): New static inline function.
        (lra_assign_reg_val): New static inline function.
        * lra.c (lra_create_new_reg): Use lra_assign_reg_val
        to assign register content record.
        (initialize_lra_reg_info_element): Initial offset to zero.

From-SVN: r198204
 2013-04-23 17:38:59 +00:00
Vladimir Makarov 88a581daa7 re PR target/57018 (Miscompilation of bison 2.7.1 under "-Os -fomit-frame-pointer") 
2013-04-22  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/57018
	* lra-eliminations.c (mark_not_eliminable): Prevent elimination of
	a set sp if no stack realignment.

2013-04-22  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/57018
	* gcc.target/i386/pr57018.c: New test.

From-SVN: r198140
 2013-04-22 14:26:51 +00:00
Steven Bosscher 397186076b cfgrtl.c (fixup_reorder_chain): Do not emit barriers to BB_FOOTER. 
* cfgrtl.c (fixup_reorder_chain): Do not emit barriers to BB_FOOTER.

	* postreload-gcse.c (bb_has_well_behaved_predecessors): Correct test
	for table jump at the end of a basic block using tablejump_p.
	* targhooks.c (default_invalid_within_doloop): Likewise.
	* config/rs6000/rs6000.c (TARGET_INVALID_WITHIN_DOLOOP): Remove
	target hook implementation that is identical to the default hook.
	(rs6000_invalid_within_doloop): Remove.

	* bb-reorder.c (fix_crossing_unconditional_branches): Remove set but
	unused variable from tablejump_p call.

	* rtl.def (JUMP_TABLE_DATA): New RTX_INSN object.
	* rtl.h (RTX_PREV, RTX_NEXT): Adjust for new JUMP_TABLE_DATA.
	(INSN_DELETED_P): Likewise.
	(emit_jump_table_data): New prototype.
	* gengtype.c (adjust_field_rtx_def): Handle JUMP_TABLE_DATA fields
	after 4th as unused.
	* print-rtl.c (print_rtl): Handle JUMP_TABLE_DATA.
	* sched-vis.c (print_insn): Likewise.
	* emit-rtl.c (active_insn_p): Consider JUMP_TABLE_DATA an active
	insn for compatibility with back ends that use next_active_insn to
	identify jump table data.
	(set_insn_deleted): Remove no longer useful JUMP_TABLE_DATA_P check.
	(remove_insn): Likewise.
	(emit_insn): Do not accept JUMP_TABLE_DATA objects in insn chains
	to be emitted.
	(emit_debug_insn, emit_jump_insn, emit_call_insn, emit_label): Idem.
	(emit_jump_table_data): New function.

	* cfgbuild.c (inside_basic_block_p): A JUMP_INSN is always inside a
	basic block, a JUMP_TABLE_DATA never is.
	(control_flow_insn_p): JUMP_TABLE_DATA is not a control flow insn.
	* cfgrtl.c (duplicate_insn_chain): Split handling of JUMP_TABLE_DATA
	off from code handling real insns.
	* final.c (get_attr_length_1): Simplify for JUMP_INSNs.
	* function.c (instantiate_virtual_regs): Remove JUMP_TABLE_DATA_P
	test, now redundant because JUMP_TABLE_DATA is not an INSN_P insn.
	* gcse.c (insert_insn_end_basic_block): Likewise, JUMP_TABLE_DATA_P
	is not a NONDEBUG_INSN_P.
	* ira-costs.c (scan_one_insn): Likewise.
	* jump.c (mark_all_labels): Likewise.
	(mark_jump_label_1): Likewise.
	* lra-eliminations.c (eliminate_regs_in_insn): Likewise.
	* lra.c (get_insn_freq): Expect all insns reaching here to be in
	a basic block.
	(check_rtl): Remove JUMP_TABLE_DATA_P test, not a NONDEBUG_INSN_P insn.
	* predict.c (expensive_function_p): Use FOR_BB_INSNS.
	* reload1.c (calculate_needs_all_insns): Call set_label_offsets for
	JUMP_TABLE_DATA_P insns.
	(calculate_elim_costs_all_insns): Likewise.
	(set_label_offsets): Recurse on the PATTERN of JUMP_TABLE_DATA insns.
	(elimination_costs_in_insn): Remove redundant JUMP_TABLE_DATA_P test.
	(delete_output_reload): Code style fixups.
	* reorg.c (dbr_schedule): Move JUMP_TABLE_DATA_P up to avoid setting
	insn flags on this non-insn.
	* sched-rgn.c (add_branch_dependences): Treat JUMP_TABLE_DATA insns
	as scheduling barriers, for pre-change compatibility.
	* stmt.c (emit_case_dispatch_table): Emit jump table data not as
	JUMP_INSN objects but instead as JUMP_TABLE_DATA objects.

	* config/alpha/alpha.c (alpha_does_function_need_gp): Remove
	redundant JUMP_TABLE_DATA_P test.
	* config/arm/arm.c (thumb_far_jump_used_p): Likewise.
	* config/frv/frv.c (frv_function_contains_far_jump): Likewise.
	(frv_for_each_packet): Likewise.
	* config/i386/i386.c (min_insn_size): Likewise.
	(ix86_avoid_jump_mispredicts): Likewise.
	* config/m32r/m32r.c (m32r_is_insn): Likewise.
	* config/mep/mep.c (mep_reorg_erepeat): Likewise.
	* config/mips/mips.c (USEFUL_INSN_P): Likewise.
	(mips16_insn_length): Robustify.
	(mips_has_long_branch_p): Remove redundant JUMP_TABLE_DATA_P test.
	(mips16_split_long_branches): Likewise.
	* config/pa/pa.c (pa_combine_instructions): Likewise.
	* config/rs6000/rs6000.c (get_next_active_insn): Treat
	JUMP_TABLE_DATA objects as active insns, like in active_insn_p.
	* config/s390/s390.c (s390_chunkify_start): Treat JUMP_TABLE_DATA
	as contributing to pool range lengths.
	* config/sh/sh.c (find_barrier): Restore check for ADDR_DIFF_VEC.
	Remove redundant JUMP_TABLE_DATA_P test.
	(sh_loop_align): Likewise.
	(split_branches): Likewise.
	(sh_insn_length_adjustment): Likewise.
	* config/spu/spu.c (get_branch_target): Likewise.

From-SVN: r197266
 2013-03-30 14:26:42 +00:00
Steven Bosscher 34f0d87acd cfgbuild.c (inside_basic_block_p): Use JUMP_TABLE_DATA_P in lieu of tests for JUMP_P and a ADDR_DIFF_VEC or... 
* cfgbuild.c (inside_basic_block_p): Use JUMP_TABLE_DATA_P in lieu
	of tests for JUMP_P and a ADDR_DIFF_VEC or ADDR_VEC pattern.
	(control_flow_insn_p): Likewise.
	* cfgrtl.c (duplicate_insn_chain): Likewise.
	* final.c (get_attr_length_1): Likewise.
	(shorten_branches): Likewise.
	(final_scan_insn): Likewise.
	* function.c (instantiate_virtual_regs): Likewise.
	* gcse.c (insert_insn_end_basic_block): Likewise.
	* ira-costs.c (scan_one_insn): Likewise.
	* lra-eliminations.c (eliminate_regs_in_insn): Likewise.
	* lra.c (check_rtl): Likewise.
	* reload1.c (elimination_costs_in_insn): Likewise.
	* reorg.c (follow_jumps): Likewise.

	* config/arm/arm.c (is_jump_table): Use JUMP_TABLE_DATA_P in lieu
	of tests for JUMP_P and a ADDR_DIFF_VEC or ADDR_VEC pattern.
	(thumb_far_jump_used_p): Likewise.
	* config/bfin/bfin.c (workaround_rts_anomaly): Likewise.
	(workaround_speculation): Likewise.
	(add_sched_insns_for_speculation): Likewise.
	* config/c6x/c6x.c (reorg_emit_nops): Likewise.
	* config/frv/frv.c (frv_function_contains_far_jump): Likewise.
	(frv_for_each_packet): Likewise.
	* config/i386/i386.c (ix86_avoid_jump_mispredicts): Likewise.
	* config/ia64/ia64.c (emit_all_insn_group_barriers): Likewise.
	(final_emit_insn_group_barriers): Likewise.
	* config/m32r/m32r.c (m32r_is_insn): Likewise.
	* config/mips/mips.c (USEFUL_INSN_P): Likewise.
	(mips16_insn_length): Likewise.
	* config/pa/pa.c (pa_reorg): Likewise.
	(pa_combine_instructions): Likewise.
	* config/rs6000/rs6000.c (rs6000_invalid_within_doloop): Likewise.
	* config/sh/sh.c (fixup_addr_diff_vecs): Likewise.
	(sh_reorg): Likewise.
	(split_branches): Likewise.
	* config/spu/spu.c (get_branch_target): Likewise.

	* config/s390/s390.c (s390_chunkify_start): Simplify logic using
	JUMP_TABLE_DATA_P.

From-SVN: r197234
 2013-03-29 12:11:10 +00:00
Richard Sandiford d1e082c2c2 Update copyright years in gcc/ 
From-SVN: r195098
 2013-01-10 20:38:27 +00:00
Vladimir Makarov f85021b021 PR rtl-optimization/pr55672 
2013-01-10  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/pr55672
	* lra-eliminations.c (mark_not_elimnable): Permit addition with
	const to be elimnable.

2013-01-10  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/pr55672
	* gcc.target/i386/pr55672.c: New.

From-SVN: r195095
 2013-01-10 20:07:55 +00:00
Richard Sandiford baa061be44 lra-eliminations.c (lra_eliminate_regs_1): Use simplify_gen_subreg rather than gen_rtx_SUBREG. 
gcc/
	* lra-eliminations.c (lra_eliminate_regs_1): Use simplify_gen_subreg
	rather than gen_rtx_SUBREG.

From-SVN: r192988
 2012-10-30 14:33:48 +00:00
H.J. Lu f4eafc3059 Remove trailing white spaces 
* lra-assigns.c: Remove trailing white spaces.
	* lra-coalesce.c: Likewise.
	* lra-constraints.c: Likewise.
	* lra-eliminations.c: Likewise.
	* lra-int.h: Likewise.
	* lra-spills.c: Likewise.
	* lra.c: Likewise.

From-SVN: r192966
 2012-10-29 14:56:35 -07:00
Vladimir Makarov 55a2c3226a dbxout.c (dbxout_symbol_location): Pass new argument to alter_subreg. 
2012-10-23  Vladimir Makarov  <vmakarov@redhat.com>

	* dbxout.c (dbxout_symbol_location): Pass new argument to
	alter_subreg.
	* dwarf2out.c: Include ira.h and lra.h.
	(based_loc_descr, compute_frame_pointer_to_fb_displacement): Use
	lra_eliminate_regs for LRA instead of eliminate_regs.
	* expr.c (emit_move_insn_1): Pass an additional argument to
	emit_move_via_integer.  Use emit_move_via_integer for LRA only if
	the insn is recognized.
	* emit-rtl.c (gen_rtx_REG): Add lra_in_progress.
	(validate_subreg): Don't check offset for LRA and floating point
	modes.
	* final.c (final_scan_insn, cleanup_subreg_operands): Pass new
	argument to alter_subreg.
	(walk_alter_subreg, output_operand): Ditto.
	(alter_subreg): Add new argument.
	* gcse.c (calculate_bb_reg_pressure): Add parameter to
	ira_setup_eliminable_regset call.
	* ira.c: Include lra.h.
	(ira_init_once, ira_init, ira_finish_once): Call lra_start_once,
	lra_init, lra_finish_once in anyway.
	(ira_setup_eliminable_regset): Add parameter.  Remove need_fp.
	Call lra_init_elimination and mark HARD_FRAME_POINTER_REGNUM as
	living forever if frame_pointer_needed.
	(setup_reg_class_relations): Set up ira_reg_class_subset.
	(ira_reg_equiv_invariant_p, ira_reg_equiv_const): Remove.
	(find_reg_equiv_invariant_const): Ditto.
	(setup_reg_renumber): Use ira_equiv_no_lvalue_p instead of
	ira_reg_equiv_invariant_p.  Skip caps for LRA.
	(setup_reg_equiv_init, ira_update_equiv_info_by_shuffle_insn): New
	functions.
	(ira_reg_equiv_len, ira_reg_equiv): New externals.
	(ira_reg_equiv): New.
	(ira_expand_reg_equiv, init_reg_equiv, finish_reg_equiv): New
	functions.
	(no_equiv, update_equiv_regs): Use ira_reg_equiv instead of
	reg_equiv_init.
	(setup_reg_equiv): New function.
	(ira_use_lra_p): New global.
	(ira): Set up lra_simple_p and ira_conflicts_p.  Set up and
	restore flag_caller_saves and flag_ira_region.  Move
	initialization of ira_obstack and ira_bitmap_obstack upper.  Call
	init_reg_equiv, setup_reg_equiv, and setup_reg_equiv_init instead
	of initialization of ira_reg_equiv_len, ira_reg_equiv_invariant_p,
	and ira_reg_equiv_const.  Call ira_setup_eliminable_regset with a
	new argument.  Don't flatten IRA IRA for LRA.  Don't reassign
	conflict allocnos for LRA. Call finish_reg_equiv.
        (do_reload): Prepare code for LRA call.  Call LRA.
	* ira.h (ira_use_lra_p): New external.
	(struct target_ira): Add members x_ira_class_subset_p
	x_ira_reg_class_subset, and x_ira_reg_classes_intersect_p.
	(ira_class_subset_p, ira_reg_class_subset): New macros.
	(ira_reg_classes_intersect_p): New macro.
	(struct ira_reg_equiv): New.
	(ira_setup_eliminable_regset): Add an argument.
	(ira_expand_reg_equiv, ira_update_equiv_info_by_shuffle_insn): New
	prototypes.
	* ira-color.c (color_pass, move_spill_restore, coalesce_allocnos):
	Use ira_equiv_no_lvalue_p.
	(coalesce_spill_slots, ira_sort_regnos_for_alter_reg): Ditto.
	* ira-emit.c (ira_create_new_reg): Call ira_expand_reg_equiv.
	(generate_edge_moves, change_loop) Use ira_equiv_no_lvalue_p.
	(emit_move_list): Simplify code.  Call
	ira_update_equiv_info_by_shuffle_insn.  Use ira_reg_equiv instead
	of ira_reg_equiv_invariant_p and ira_reg_equiv_const.  Change
	assert.
	* ira-int.h (struct target_ira_int): Remove x_ira_class_subset_p
	and x_ira_reg_classes_intersect_p.
	(ira_class_subset_p, ira_reg_classes_intersect_p): Remove.
	(ira_reg_equiv_len, ira_reg_equiv_invariant_p): Ditto.
	(ira_reg_equiv_const): Ditto.
	(ira_equiv_no_lvalue_p): New function.
	* jump.c (true_regnum): Always use hard_regno for subreg_get_info
	when lra is in progress.
	* haifa-sched.c (sched_init): Pass new argument to
	ira_setup_eliminable_regset.
	* loop-invariant.c (calculate_loop_reg_pressure): Pass new
	argument to ira_setup_eliminable_regset.
	* lra.h: New.
	* lra-int.h: Ditto.
	* lra.c: Ditto.
	* lra-assigns.c: Ditto.
	* lra-constraints.c: Ditto.
	* lra-coalesce.c: Ditto.
	* lra-eliminations.c: Ditto.
	* lra-lives.c: Ditto.
	* lra-spills.c: Ditto.
	* Makefile.in (LRA_INT_H): New.
	(OBJS): Add lra.o, lra-assigns.o, lra-coalesce.o,
	lra-constraints.o, lra-eliminations.o, lra-lives.o, and
	lra-spills.o.
	(dwarf2out.o): Add dependence on ira.h and lra.h.
	(ira.o): Add dependence on lra.h.
	(lra.o, lra-assigns.o, lra-coalesce.o, lra-constraints.o): New
	entries.
	(lra-eliminations.o, lra-lives.o, lra-spills.o): Ditto.
	* output.h (alter_subreg): Add new argument.
	* rtlanal.c (simplify_subreg_regno): Permit mode changes for LRA.
	Permit ARG_POINTER_REGNUM and STACK_POINTER_REGNUM for LRA.
	* recog.c (general_operand, register_operand): Accept paradoxical
	FLOAT_MODE subregs for LRA.
	(scratch_operand): Accept pseudos for LRA.
	* rtl.h (lra_in_progress): New external.
	(debug_bb_n_slim, debug_bb_slim, print_value_slim): New
	prototypes.
	(debug_rtl_slim, debug_insn_slim): Ditto.
	* sdbout.c (sdbout_symbol): Pass new argument to alter_subreg.
	* sched-vis.c (print_value_slim): New.
	* target.def (lra_p): New hook.
	(register_priority): Ditto.
	(different_addr_displacement_p): Ditto.
	(spill_class): Ditto.
	* target-globals.h (this_target_lra_int): New external.
	(target_globals): New member lra_int.
	(restore_target_globals): Restore this_target_lra_int.
	* target-globals.c: Include lra-int.h.
	(default_target_globals): Add &default_target_lra_int.
	* targhooks.c (default_lra_p): New function.
	(default_register_priority): Ditto.
	(default_different_addr_displacement_p): Ditto.
	* targhooks.h (default_lra_p): Declare.
	(default_register_priority): Ditto.
	(default_different_addr_displacement_p): Ditto.
	* timevar.def (TV_LRA, TV_LRA_ELIMINATE, TV_LRA_INHERITANCE): New.
	(TV_LRA_CREATE_LIVE_RANGES, TV_LRA_ASSIGN, TV_LRA_COALESCE): New.
	* config/arm/arm.c (load_multiple_sequence): Pass new argument toOB
	alter_subreg.
	(store_multiple_sequence): Ditto.
	* config/i386/i386.h (enum ix86_tune_indices): Add
	X86_TUNE_GENERAL_REGS_SSE_SPILL.
	(TARGET_GENERAL_REGS_SSE_SPILL): New macro.
	* config/i386/i386.c (initial_ix86_tune_features): Set up
	X86_TUNE_GENERAL_REGS_SSE_SPILL for m_COREI7 and m_CORE2I7.
	(ix86_lra_p, ix86_register_priority): New functions.
	(ix86_secondary_reload): Add NON_Q_REGS, SIREG, DIREG.
	(inline_secondary_memory_needed): Change assert.
	(ix86_spill_class): New function.
	(TARGET_LRA_P, TARGET_REGISTER_BANK, TARGET_SPILL_CLASS): New
	macros.
	* config/m68k/m68k.c (emit_move_sequence): Pass new argument to
	alter_subreg.
	* config/m32r/m32r.c (gen_split_move_double): Ditto.
	* config/pa/pa.c (pa_emit_move_sequence): Ditto.
	* config/sh/sh.md: Ditto.
	* config/v850/v850.c (v850_reorg): Ditto.
	* config/xtensa/xtensa.c (fixup_subreg_mem): Ditto.
	* doc/md.texi: Add new interpretation of hint * for LRA.
	* doc/passes.texi: Describe LRA pass.
	* doc/tm.texi.in: Add TARGET_LRA_P, TARGET_REGISTER_PRIORITY,
	TARGET_DIFFERENT_ADDR_DISPLACEMENT_P, and TARGET_SPILL_CLASS.
	* doc/tm.texi: Update.

From-SVN: r192719
 2012-10-23 15:51:41 +00:00