X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_main.c;h=7524af16584aa360c2fd53f92249dc2680809c80;hb=333bc9c7aba2e2dbb8a3f108e73d6fd1c95dcc9f;hp=e42804d50e869887ed4fbe0a619e86d66bd31a49;hpb=3c05a79bd157963c1525481b2c05b7af37daf2c3;p=libfirm diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c index e42804d50..7524af165 100644 --- a/ir/be/bechordal_main.c +++ b/ir/be/bechordal_main.c @@ -1,18 +1,34 @@ -/** - * @file bechordal_main.c - * @date 29.11.2005 - * @author Sebastian Hack - * @cvs-id $Id$ +/* + * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. + * + * This file may be distributed and/or modified under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation and appearing in the file LICENSE.GPL included in the + * packaging of this file. * - * Copyright (C) 2005-2006 Universitaet Karlsruhe - * Released under the GPL + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. * - * Driver for the chordal register allocator. + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. + */ + +/** + * @file + * @brief Driver for the chordal register allocator. + * @author Sebastian Hack + * @date 29.11.2005 + * @version $Id$ */ #ifdef HAVE_CONFIG_H #include "config.h" #endif +#include #include #include "obst.h" @@ -22,9 +38,8 @@ #include "iterator.h" #include "firm_config.h" -#include -#include -#include +#include "lc_opts.h" +#include "lc_opts_enum.h" #include "ircons_t.h" #include "irmode_t.h" @@ -41,6 +56,7 @@ #include "debug.h" #include "xmalloc.h" #include "execfreq.h" +#include "iredges_t.h" #include "bechordal_t.h" #include "beabi.h" @@ -57,9 +73,9 @@ #include "bestat.h" #include "bemodule.h" #include "be_t.h" +#include "bera.h" +#include "beirg_t.h" -#include "bespillbelady.h" -#include "bespillmorgan.h" #include "bespillslots.h" #include "bespilloptions.h" #include "belower.h" @@ -79,6 +95,8 @@ static be_ra_chordal_opts_t options = { BE_CH_DUMP_NONE, BE_CH_LOWER_PERM_SWAP, BE_CH_VRFY_WARN, + "", + "" }; typedef struct _post_spill_env_t { @@ -88,19 +106,7 @@ typedef struct _post_spill_env_t { double pre_spill_cost; } post_spill_env_t; -static be_ra_timer_t ra_timer = { - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, -}; +static be_options_t *main_opts; static const lc_opt_enum_int_items_t lower_perm_items[] = { { "copy", BE_CH_LOWER_PERM_COPY }, @@ -151,7 +157,7 @@ static const lc_opt_table_entry_t be_chordal_options[] = { LC_OPT_ENT_ENUM_PTR ("perm", "perm lowering options", &lower_perm_var), LC_OPT_ENT_ENUM_MASK("dump", "select dump phases", &dump_var), LC_OPT_ENT_ENUM_PTR ("vrfy", "verify options", &be_ch_vrfy_var), - { NULL } + LC_OPT_LAST }; static void dump(unsigned mask, ir_graph *irg, @@ -246,21 +252,22 @@ static void node_stat_walker(ir_node *irn, void *data) if(is_Phi(irn)) env->stat->n_phis++; - else if(arch_irn_classify(aenv, irn) & arch_irn_class_spill) - ++env->stat->n_spills; - - else if(arch_irn_classify(aenv, irn) & arch_irn_class_reload) - ++env->stat->n_reloads; - - else if(arch_irn_classify(aenv, irn) & arch_irn_class_copy) - ++env->stat->n_copies; - - else if(arch_irn_classify(aenv, irn) & arch_irn_class_perm) - ++env->stat->n_perms; + else { + arch_irn_class_t classify = arch_irn_classify(aenv, irn); + + if(classify & arch_irn_class_spill) + ++env->stat->n_spills; + if(classify & arch_irn_class_reload) + ++env->stat->n_reloads; + if(classify & arch_irn_class_copy) + ++env->stat->n_copies; + if(classify & arch_irn_class_perm) + ++env->stat->n_perms; + } } /* a mem phi is a PhiM with a mem phi operand or a Spill operand */ - else if(is_Phi(irn) && get_irn_mode(irn) == mode_M) { + /*else*/ if(is_Phi(irn) && get_irn_mode(irn) == mode_M) { int i; for(i = get_irn_arity(irn) - 1; i >= 0; --i) { @@ -310,100 +317,40 @@ static unsigned int count_insns(ir_graph *irg) return cnt; } -/** - * Initialize all timers. - */ -static void be_init_timer(be_options_t *main_opts) -{ - if (main_opts->timing == BE_TIME_ON) { - ra_timer.t_prolog = lc_timer_register("ra_prolog", "regalloc prolog"); - ra_timer.t_epilog = lc_timer_register("ra_epilog", "regalloc epilog"); - ra_timer.t_live = lc_timer_register("ra_liveness", "be liveness"); - ra_timer.t_spill = lc_timer_register("ra_spill", "spiller"); - ra_timer.t_spillslots = lc_timer_register("ra_spillslots", "spillslots"); - ra_timer.t_color = lc_timer_register("ra_color", "graph coloring"); - ra_timer.t_ifg = lc_timer_register("ra_ifg", "interference graph"); - ra_timer.t_copymin = lc_timer_register("ra_copymin", "copy minimization"); - ra_timer.t_ssa = lc_timer_register("ra_ssadestr", "ssa destruction"); - ra_timer.t_verify = lc_timer_register("ra_verify", "graph verification"); - ra_timer.t_other = lc_timer_register("ra_other", "other time"); - - LC_STOP_AND_RESET_TIMER(ra_timer.t_prolog); - LC_STOP_AND_RESET_TIMER(ra_timer.t_epilog); - LC_STOP_AND_RESET_TIMER(ra_timer.t_live); - LC_STOP_AND_RESET_TIMER(ra_timer.t_spill); - LC_STOP_AND_RESET_TIMER(ra_timer.t_spillslots); - LC_STOP_AND_RESET_TIMER(ra_timer.t_color); - LC_STOP_AND_RESET_TIMER(ra_timer.t_ifg); - LC_STOP_AND_RESET_TIMER(ra_timer.t_copymin); - LC_STOP_AND_RESET_TIMER(ra_timer.t_ssa); - LC_STOP_AND_RESET_TIMER(ra_timer.t_verify); - LC_STOP_AND_RESET_TIMER(ra_timer.t_other); - - global_ra_timer = &ra_timer; - } -} - -#define BE_TIMER_INIT(main_opts) be_init_timer(main_opts) - -#define BE_TIMER_PUSH(timer) \ - if (main_opts->timing == BE_TIME_ON) { \ - if (! lc_timer_push(timer)) { \ - if (options.vrfy_option == BE_CH_VRFY_ASSERT) \ - assert(!"Timer already on stack, cannot be pushed twice."); \ - else if (options.vrfy_option == BE_CH_VRFY_WARN) \ - fprintf(stderr, "Timer %s already on stack, cannot be pushed twice.\n", \ - lc_timer_get_name(timer)); \ - } \ - } -#define BE_TIMER_POP(timer) \ - if (main_opts->timing == BE_TIME_ON) { \ - lc_timer_t *tmp = lc_timer_pop(); \ - if (options.vrfy_option == BE_CH_VRFY_ASSERT) \ - assert(tmp == timer && "Attempt to pop wrong timer."); \ - else if (options.vrfy_option == BE_CH_VRFY_WARN && tmp != timer) \ - fprintf(stderr, "Attempt to pop wrong timer. %s is on stack, trying to pop %s.\n", \ - lc_timer_get_name(tmp), lc_timer_get_name(timer)); \ - timer = tmp; \ - } - /** * Perform things which need to be done per register class before spilling. */ -static void pre_spill(const arch_isa_t *isa, int cls_idx, post_spill_env_t *pse) { - be_chordal_env_t *chordal_env = &pse->cenv; - be_irg_t *birg = pse->birg; - node_stat_t node_stat; +static void pre_spill(post_spill_env_t *pse, const arch_register_class_t *cls) +{ + be_chordal_env_t *chordal_env = &pse->cenv; + be_irg_t *birg = pse->birg; + ir_graph *irg = be_get_birg_irg(birg); + const be_main_env_t *main_env = birg->main_env; + node_stat_t node_stat; - pse->cls = arch_isa_get_reg_class(isa, cls_idx); - chordal_env->cls = pse->cls; + pse->cls = cls; + chordal_env->cls = cls; chordal_env->border_heads = pmap_create(); chordal_env->ignore_colors = bitset_malloc(chordal_env->cls->n_regs); -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - be_stat_tags[STAT_TAG_CLS] = pse->cls->name; - be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file); + be_assure_liveness(birg); + be_liveness_assure_chk(be_get_birg_liveness(birg)); - /* perform some node statistics. */ - node_stats(birg, pse->cls, &node_stat); - be_stat_ev("phis_before_spill", node_stat.n_phis); - } -#endif /* FIRM_STATISTICS */ + stat_ev_ctx_push_str("bechordal_cls", pse->cls->name); + stat_ev_do(node_stats(birg, pse->cls, &node_stat)); + stat_ev_do(pse->pre_spill_cost = be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq)); + stat_ev_dbl("phis_before_spill", node_stat.n_phis); /* put all ignore registers into the ignore register set. */ be_put_ignore_regs(birg, pse->cls, chordal_env->ignore_colors); + BE_TIMER_PUSH(t_ra_constr); be_pre_spill_prepare_constr(chordal_env); + BE_TIMER_POP(t_ra_constr); + dump(BE_CH_DUMP_CONSTR, birg->irg, pse->cls, "-constr-pre", dump_ir_block_graph_sched); -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - pse->pre_spill_cost = be_estimate_irg_costs(birg->irg, - birg->main_env->arch_env, birg->exec_freq); - be_stat_ev_pop(); - } -#endif /* FIRM_STATISTICS */ + stat_ev_ctx_pop("bechordal_cls"); } /** @@ -414,42 +361,34 @@ static void post_spill(post_spill_env_t *pse, int iteration) { be_irg_t *birg = pse->birg; ir_graph *irg = birg->irg; const be_main_env_t *main_env = birg->main_env; - be_options_t *main_opts = main_env->options; - node_stat_t node_stat; - int colors_n = arch_register_class_n_regs(chordal_env->cls); + node_stat_t node_stat; + int colors_n = arch_register_class_n_regs(chordal_env->cls); int allocatable_regs = colors_n - be_put_ignore_regs(birg, chordal_env->cls, NULL); /* some special classes contain only ignore regs, no work to be done */ if (allocatable_regs > 0) { -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - double spillcosts = be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq) - pse->pre_spill_cost; - - be_stat_tags[STAT_TAG_CLS] = pse->cls->name; - be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file); - - be_stat_ev_l("spillcosts", (long) spillcosts); - - node_stats(birg, pse->cls, &node_stat); - be_stat_ev("phis_after_spill", node_stat.n_phis); - be_stat_ev("mem_phis", node_stat.n_mem_phis); - be_stat_ev("reloads", node_stat.n_reloads); - be_stat_ev("spills", node_stat.n_spills); - } -#endif /* FIRM_STATISTICS */ + stat_ev_ctx_push_str("bechordal_cls", pse->cls->name); + stat_ev_do(node_stats(birg, pse->cls, &node_stat)); + stat_ev_dbl("phis_after_spill", node_stat.n_phis); + stat_ev_dbl("mem_phis", node_stat.n_mem_phis); + stat_ev_dbl("reloads", node_stat.n_reloads); + stat_ev_dbl("spills", node_stat.n_spills); + stat_ev_dbl("spillcosts", be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq) - pse->pre_spill_cost); /* If we have a backend provided spiller, post spill is called in a loop after spilling for each register class. But we only need to fix stack nodes once in this case. */ + BE_TIMER_PUSH(t_ra_spill); + check_for_memory_operands(chordal_env); if (iteration == 0) { - check_for_memory_operands(chordal_env); be_abi_fix_stack_nodes(birg->abi); } + BE_TIMER_POP(t_ra_spill); - BE_TIMER_PUSH(ra_timer.t_verify); + BE_TIMER_PUSH(t_verify); /* verify schedule and register pressure */ if (chordal_env->opts->vrfy_option == BE_CH_VRFY_WARN) { @@ -461,65 +400,60 @@ static void post_spill(post_spill_env_t *pse, int iteration) { assert(be_verify_register_pressure(birg, pse->cls, irg) && "Register pressure verification failed"); } - BE_TIMER_POP(ra_timer.t_verify); + BE_TIMER_POP(t_verify); /* Color the graph. */ - BE_TIMER_PUSH(ra_timer.t_color); + BE_TIMER_PUSH(t_ra_color); be_ra_chordal_color(chordal_env); - BE_TIMER_POP(ra_timer.t_color); + BE_TIMER_POP(t_ra_color); dump(BE_CH_DUMP_CONSTR, irg, pse->cls, "-color", dump_ir_block_graph_sched); /* Create the ifg with the selected flavor */ - BE_TIMER_PUSH(ra_timer.t_ifg); + BE_TIMER_PUSH(t_ra_ifg); chordal_env->ifg = be_create_ifg(chordal_env); - BE_TIMER_POP(ra_timer.t_ifg); + BE_TIMER_POP(t_ra_ifg); -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { + { be_ifg_stat_t stat; - be_ifg_stat(birg, chordal_env->ifg, &stat); - be_stat_ev("ifg_nodes", stat.n_nodes); - be_stat_ev("ifg_edges", stat.n_edges); - be_stat_ev("ifg_comps", stat.n_comps); + stat_ev_do(be_ifg_stat(birg, chordal_env->ifg, &stat)); + stat_ev_dbl("ifg_nodes", stat.n_nodes); + stat_ev_dbl("ifg_edges", stat.n_edges); + stat_ev_dbl("ifg_comps", stat.n_comps); - node_stats(birg, pse->cls, &node_stat); - be_stat_ev("perms_before_coal", node_stat.n_perms); - be_stat_ev("copies_before_coal", node_stat.n_copies); + stat_ev_do(node_stats(birg, pse->cls, &node_stat)); + stat_ev_dbl("perms_before_coal", node_stat.n_perms); + stat_ev_dbl("copies_before_coal", node_stat.n_copies); } -#endif /* FIRM_STATISTICS */ /* copy minimization */ - BE_TIMER_PUSH(ra_timer.t_copymin); + BE_TIMER_PUSH(t_ra_copymin); co_driver(chordal_env); - BE_TIMER_POP(ra_timer.t_copymin); + BE_TIMER_POP(t_ra_copymin); dump(BE_CH_DUMP_COPYMIN, irg, pse->cls, "-copymin", dump_ir_block_graph_sched); - BE_TIMER_PUSH(ra_timer.t_ssa); /* ssa destruction */ + BE_TIMER_PUSH(t_ra_ssa); + stat_ev_ctx_push_str("berachordal_phase", "ssadestr"); be_ssa_destruction(chordal_env); - - BE_TIMER_POP(ra_timer.t_ssa); + stat_ev_ctx_pop("berachordal_phase"); + BE_TIMER_POP(t_ra_ssa); dump(BE_CH_DUMP_SSADESTR, irg, pse->cls, "-ssadestr", dump_ir_block_graph_sched); - BE_TIMER_PUSH(ra_timer.t_verify); if (chordal_env->opts->vrfy_option != BE_CH_VRFY_OFF) { + BE_TIMER_PUSH(t_verify); be_ssa_destruction_check(chordal_env); + BE_TIMER_POP(t_verify); } - BE_TIMER_POP(ra_timer.t_verify); - -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - node_stats(birg, pse->cls, &node_stat); - be_stat_ev("perms_after_coal", node_stat.n_perms); - be_stat_ev("copies_after_coal", node_stat.n_copies); - be_stat_ev_pop(); - } -#endif /* FIRM_STATISTICS */ + + stat_ev_do(node_stats(birg, pse->cls, &node_stat)); + stat_ev_dbl("perms_after_coal", node_stat.n_perms); + stat_ev_dbl("copies_after_coal", node_stat.n_copies); + stat_ev_ctx_pop("bechordal_cls"); /* the ifg exists only if there are allocatable regs */ be_ifg_free(chordal_env->ifg); @@ -538,20 +472,23 @@ static void post_spill(post_spill_env_t *pse, int iteration) { */ static void be_ra_chordal_main(be_irg_t *birg) { - const be_main_env_t *main_env = birg->main_env; - const arch_isa_t *isa = arch_env_get_isa(main_env->arch_env); - ir_graph *irg = birg->irg; - be_options_t *main_opts = main_env->options; + const be_main_env_t *main_env = birg->main_env; + const arch_env_t *arch_env = main_env->arch_env; + ir_graph *irg = birg->irg; int j, m; be_chordal_env_t chordal_env; + struct obstack obst; + + main_opts = main_env->options; + + BE_TIMER_PUSH(t_ra_other); - BE_TIMER_INIT(main_opts); - BE_TIMER_PUSH(ra_timer.t_other); - BE_TIMER_PUSH(ra_timer.t_prolog); + BE_TIMER_PUSH(t_ra_prolog); be_assure_dom_front(birg); be_assure_liveness(birg); + chordal_env.obst = &obst; chordal_env.opts = &options; chordal_env.irg = irg; chordal_env.birg = birg; @@ -559,28 +496,37 @@ static void be_ra_chordal_main(be_irg_t *birg) chordal_env.ifg = NULL; chordal_env.ignore_colors = NULL; - obstack_init(&chordal_env.obst); + obstack_init(&obst); - BE_TIMER_POP(ra_timer.t_prolog); + BE_TIMER_POP(t_ra_prolog); - be_stat_ev("insns_before", count_insns(irg)); + stat_ev_if { + be_stat_ev("insns_before", count_insns(irg)); + } if (! arch_code_generator_has_spiller(birg->cg)) { /* use one of the generic spiller */ /* Perform the following for each register class. */ - for (j = 0, m = arch_isa_get_n_reg_class(isa); j < m; ++j) { + for (j = 0, m = arch_env_get_n_reg_class(arch_env); j < m; ++j) { post_spill_env_t pse; + const arch_register_class_t *cls + = arch_env_get_reg_class(arch_env, j); + + if(arch_register_class_flags(cls) & arch_register_class_flag_manual_ra) + continue; + memcpy(&pse.cenv, &chordal_env, sizeof(chordal_env)); pse.birg = birg; - pre_spill(isa, j, &pse); + pre_spill(&pse, cls); - BE_TIMER_PUSH(ra_timer.t_spill); - be_do_spill(birg, pse.cls); - BE_TIMER_POP(ra_timer.t_spill); + BE_TIMER_PUSH(t_ra_spill); + be_do_spill(birg, cls); + BE_TIMER_POP(t_ra_spill); - dump(BE_CH_DUMP_SPILL, irg, pse.cls, "-spill", dump_ir_block_graph_sched); + dump(BE_CH_DUMP_SPILL, irg, pse.cls, "-spill", + dump_ir_block_graph_sched); post_spill(&pse, 0); } @@ -588,19 +534,19 @@ static void be_ra_chordal_main(be_irg_t *birg) post_spill_env_t *pse; /* the backend has it's own spiller */ - m = arch_isa_get_n_reg_class(isa); + m = arch_env_get_n_reg_class(arch_env); pse = alloca(m * sizeof(pse[0])); for (j = 0; j < m; ++j) { memcpy(&pse[j].cenv, &chordal_env, sizeof(chordal_env)); pse[j].birg = birg; - pre_spill(isa, j, &pse[j]); + pre_spill(&pse[j], pse[j].cls); } - BE_TIMER_PUSH(ra_timer.t_spill); + BE_TIMER_PUSH(t_ra_spill); arch_code_generator_spill(birg->cg, birg); - BE_TIMER_POP(ra_timer.t_spill); + BE_TIMER_POP(t_ra_spill); dump(BE_CH_DUMP_SPILL, irg, NULL, "-spill", dump_ir_block_graph_sched); for (j = 0; j < m; ++j) { @@ -608,17 +554,23 @@ static void be_ra_chordal_main(be_irg_t *birg) } } - BE_TIMER_PUSH(ra_timer.t_epilog); + BE_TIMER_PUSH(t_verify); + be_verify_register_allocation(birg); + BE_TIMER_POP(t_verify); + + BE_TIMER_PUSH(t_ra_epilog); lower_nodes_after_ra(birg, options.lower_perm_opt & BE_CH_LOWER_PERM_COPY ? 1 : 0); dump(BE_CH_DUMP_LOWER, irg, NULL, "-belower-after-ra", dump_ir_block_graph_sched); - obstack_free(&chordal_env.obst, NULL); - be_invalidate_liveness(birg); - BE_TIMER_POP(ra_timer.t_epilog); + obstack_free(&obst, NULL); + be_liveness_invalidate(be_get_birg_liveness(birg)); + BE_TIMER_POP(t_ra_epilog); - BE_TIMER_POP(ra_timer.t_other); + BE_TIMER_POP(t_ra_other); - be_stat_ev("insns_after", count_insns(irg)); + stat_ev_if { + be_stat_ev("insns_after", count_insns(irg)); + } return; }