X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_main.c;h=4332d32556b8a8b52d67c77645480ffee46ba55c;hb=0fbcef83aa6060534172bb13e71cdadb04428806;hp=fb3d9ad4616985d1a8b57905a8a4175d79a05a13;hpb=aa89f2a8eee2c5a5b84b6b5377ddc5d57b3aa2e0;p=libfirm diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c index fb3d9ad46..4332d3255 100644 --- a/ir/be/bechordal_main.c +++ b/ir/be/bechordal_main.c @@ -1,18 +1,32 @@ -/** - * @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" @@ -20,13 +34,9 @@ #include "list.h" #include "bitset.h" #include "iterator.h" -#include "firm_config.h" -#ifdef WITH_LIBCORE -#include -#include -#include -#endif /* WITH_LIBCORE */ +#include "lc_opts.h" +#include "lc_opts_enum.h" #include "ircons_t.h" #include "irmode_t.h" @@ -41,35 +51,30 @@ #include "irnode.h" #include "ircons.h" #include "debug.h" -#include "xmalloc.h" #include "execfreq.h" +#include "iredges_t.h" #include "bechordal_t.h" #include "beabi.h" -#include "bejavacoal.h" #include "beutil.h" #include "besched.h" #include "besched_t.h" #include "belive_t.h" -#include "bearch.h" +#include "bearch_t.h" #include "beifg_t.h" #include "beifg_impl.h" #include "benode_t.h" #include "bestatevent.h" #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" -#ifdef WITH_ILP -#include "bespillremat.h" -#endif /* WITH_ILP */ - -#include "bejavacoal.h" #include "becopystat.h" #include "becopyopt.h" #include "bessadestr.h" @@ -80,29 +85,18 @@ static be_ra_chordal_opts_t options = { BE_CH_DUMP_NONE, BE_CH_LOWER_PERM_SWAP, BE_CH_VRFY_WARN, + "", + "" }; -/** Enable extreme live range splitting. */ -static int be_elr_split = 0; - typedef struct _post_spill_env_t { - be_chordal_env_t cenv; - double pre_spill_cost; + be_chordal_env_t cenv; + be_irg_t *birg; + const arch_register_class_t *cls; + 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 }, @@ -115,6 +109,7 @@ static const lc_opt_enum_int_items_t lower_perm_stat_items[] = { }; static const lc_opt_enum_int_items_t dump_items[] = { + { "none", BE_CH_DUMP_NONE }, { "spill", BE_CH_DUMP_SPILL }, { "live", BE_CH_DUMP_LIVE }, { "color", BE_CH_DUMP_COLOR }, @@ -152,8 +147,7 @@ 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), - LC_OPT_ENT_BOOL ("elrsplit", "enable extreme live range splitting", &be_elr_split), - { NULL } + LC_OPT_LAST }; static void dump(unsigned mask, ir_graph *irg, @@ -172,28 +166,17 @@ static void dump(unsigned mask, ir_graph *irg, } } -static void put_ignore_colors(be_chordal_env_t *chordal_env) -{ - int n_colors = chordal_env->cls->n_regs; - int i; - - bitset_clear_all(chordal_env->ignore_colors); - be_abi_put_ignore_regs(chordal_env->birg->abi, chordal_env->cls, chordal_env->ignore_colors); - for(i = 0; i < n_colors; ++i) - if(arch_register_type_is(&chordal_env->cls->regs[i], ignore)) - bitset_set(chordal_env->ignore_colors, i); -} - /** - * Checks for every reload if it's user can perform the load on itself. + * Checks for every reload if its user can perform the load on itself. */ -static void memory_operand_walker(ir_node *irn, void *env) { - be_chordal_env_t *cenv = env; - const arch_env_t *aenv = cenv->birg->main_env->arch_env; +static void memory_operand_walker(ir_node *irn, void *env) +{ const ir_edge_t *edge, *ne; ir_node *block; ir_node *spill; + (void)env; + if (! be_is_Reload(irn)) return; @@ -210,9 +193,8 @@ static void memory_operand_walker(ir_node *irn, void *env) { assert(src && "outedges broken!"); - if (get_nodes_block(src) == block && arch_possible_memory_operand(aenv, src, pos)) { - DBG((cenv->dbg, LEVEL_3, "performing memory operand %+F at %+F\n", irn, src)); - arch_perform_memory_operand(aenv, src, spill, pos); + if (get_nodes_block(src) == block && arch_possible_memory_operand(src, pos)) { + arch_perform_memory_operand(src, spill, pos); } } @@ -220,316 +202,149 @@ static void memory_operand_walker(ir_node *irn, void *env) { if (get_irn_n_edges(irn) == 0) { sched_remove(irn); set_irn_n(irn, be_pos_Reload_mem, new_Bad()); + set_irn_n(irn, be_pos_Reload_frame, new_Bad()); } } /** * Starts a walk for memory operands if supported by the backend. */ -static INLINE void check_for_memory_operands(be_chordal_env_t *chordal_env) { - irg_walk_graph(chordal_env->irg, NULL, memory_operand_walker, chordal_env); -} - -/** - * Sorry for doing stats again... - */ -typedef struct _node_stat_t { - unsigned int n_phis; /**< Phis of the current register class. */ - unsigned int n_mem_phis; /**< Memory Phis (Phis with spill operands). */ - unsigned int n_copies; /**< Copies */ - unsigned int n_perms; /**< Perms */ - unsigned int n_spills; /**< Spill nodes */ - unsigned int n_reloads; /**< Reloads */ -} node_stat_t; - -struct node_stat_walker { - node_stat_t *stat; - const be_chordal_env_t *cenv; - bitset_t *mem_phis; -}; - -static void node_stat_walker(ir_node *irn, void *data) -{ - struct node_stat_walker *env = data; - const arch_env_t *aenv = env->cenv->birg->main_env->arch_env; - - if(arch_irn_consider_in_reg_alloc(aenv, env->cenv->cls, irn)) { - - /* if the node is a normal phi */ - 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; - } - - /* 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) { - int i; - - for(i = get_irn_arity(irn) - 1; i >= 0; --i) { - ir_node *op = get_irn_n(irn, i); - - if((is_Phi(op) && bitset_contains_irn(env->mem_phis, op)) || (arch_irn_classify(aenv, op) & arch_irn_class_spill)) { - bitset_add_irn(env->mem_phis, irn); - env->stat->n_mem_phis++; - break; - } - } - } -} - -static void node_stats(const be_chordal_env_t *cenv, node_stat_t *stat) -{ - struct node_stat_walker env; - - memset(stat, 0, sizeof(stat[0])); - env.cenv = cenv; - env.mem_phis = bitset_irg_malloc(cenv->irg); - env.stat = stat; - irg_walk_graph(cenv->irg, NULL, node_stat_walker, &env); - bitset_free(env.mem_phis); -} - -static void insn_count_walker(ir_node *irn, void *data) -{ - int *cnt = data; - - switch(get_irn_opcode(irn)) { - case iro_Proj: - case iro_Phi: - case iro_Start: - case iro_End: - break; - default: - (*cnt)++; - } -} - -static unsigned int count_insns(ir_graph *irg) -{ - int cnt = 0; - irg_walk_graph(irg, insn_count_walker, NULL, &cnt); - return cnt; -} - -#ifdef WITH_LIBCORE -/** - * Initialize all timers. - */ -static void be_init_timer(be_options_t *main_opts) +static INLINE void check_for_memory_operands(ir_graph *irg) { - 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); - } + irg_walk_graph(irg, NULL, memory_operand_walker, NULL); } -#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; \ - } -#else - -#define BE_TIMER_INIT(main_opts) -#define BE_TIMER_PUSH(timer) -#define BE_TIMER_POP(timer) -#endif /* WITH_LIBCORE */ +static be_node_stats_t last_node_stats; /** * 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; - 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; - chordal_env->cls = arch_isa_get_reg_class(isa, cls_idx); + 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] = chordal_env->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(chordal_env, &node_stat); - be_stat_ev("phis_before_spill", node_stat.n_phis); - } -#endif /* FIRM_STATISTICS */ + stat_ev_do(pse->pre_spill_cost = be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq)); /* put all ignore registers into the ignore register set. */ - put_ignore_colors(chordal_env); + be_put_ignore_regs(birg, pse->cls, chordal_env->ignore_colors); + BE_TIMER_PUSH(t_ra_constr); be_pre_spill_prepare_constr(chordal_env); - dump(BE_CH_DUMP_CONSTR, chordal_env->irg, chordal_env->cls, "-constr-pre", dump_ir_block_graph_sched); + BE_TIMER_POP(t_ra_constr); -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - pse->pre_spill_cost = be_estimate_irg_costs(chordal_env->irg, - chordal_env->birg->main_env->arch_env, chordal_env->birg->exec_freq); - } -#endif /* FIRM_STATISTICS */ + dump(BE_CH_DUMP_CONSTR, birg->irg, pse->cls, "-constr-pre", dump_ir_block_graph_sched); } /** * Perform things which need to be done per register class after spilling. */ -static void post_spill(post_spill_env_t *pse) { +static void post_spill(post_spill_env_t *pse, int iteration) { be_chordal_env_t *chordal_env = &pse->cenv; - ir_graph *irg = chordal_env->irg; - be_irg_t *birg = chordal_env->birg; + 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; - static int splitted = 0; - node_stat_t node_stat; - -#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; + 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) { + stat_ev_dbl("bechordal_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_apply); + check_for_memory_operands(irg); + if (iteration == 0) { + be_abi_fix_stack_nodes(birg->abi); + } + BE_TIMER_POP(t_ra_spill_apply); + + BE_TIMER_PUSH(t_verify); + + /* verify schedule and register pressure */ + if (chordal_env->opts->vrfy_option == BE_CH_VRFY_WARN) { + be_verify_schedule(birg); + be_verify_register_pressure(birg, pse->cls, irg); + } else if (chordal_env->opts->vrfy_option == BE_CH_VRFY_ASSERT) { + assert(be_verify_schedule(birg) && "Schedule verification failed"); + assert(be_verify_register_pressure(birg, pse->cls, irg) + && "Register pressure verification failed"); + } + BE_TIMER_POP(t_verify); - be_stat_ev_l("spillcosts", (long) spillcosts); + /* Color the graph. */ + BE_TIMER_PUSH(t_ra_color); + be_ra_chordal_color(chordal_env); + BE_TIMER_POP(t_ra_color); - node_stats(chordal_env, &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 */ + dump(BE_CH_DUMP_CONSTR, irg, pse->cls, "-color", dump_ir_block_graph_sched); - check_for_memory_operands(chordal_env); + /* Create the ifg with the selected flavor */ + BE_TIMER_PUSH(t_ra_ifg); + chordal_env->ifg = be_create_ifg(chordal_env); + BE_TIMER_POP(t_ra_ifg); - be_abi_fix_stack_nodes(birg->abi, birg->lv); + stat_ev_if { + be_ifg_stat_t stat; + be_node_stats_t node_stats; - BE_TIMER_PUSH(ra_timer.t_verify); + be_ifg_stat(birg, chordal_env->ifg, &stat); + stat_ev_dbl("bechordal_ifg_nodes", stat.n_nodes); + stat_ev_dbl("bechordal_ifg_edges", stat.n_edges); + stat_ev_dbl("bechordal_ifg_comps", stat.n_comps); - /* verify schedule and register pressure */ - if (chordal_env->opts->vrfy_option == BE_CH_VRFY_WARN) { - be_verify_schedule(irg); - be_verify_register_pressure(chordal_env->birg, chordal_env->cls, irg); - } - else if (chordal_env->opts->vrfy_option == BE_CH_VRFY_ASSERT) { - assert(be_verify_schedule(irg) && "Schedule verification failed"); - assert(be_verify_register_pressure(chordal_env->birg, chordal_env->cls, irg) - && "Register pressure verification failed"); - } - BE_TIMER_POP(ra_timer.t_verify); + be_collect_node_stats(&node_stats, birg); + be_subtract_node_stats(&node_stats, &last_node_stats); - if (be_elr_split && ! splitted) { - extreme_liverange_splitting(chordal_env); - splitted = 1; - } - - /* Color the graph. */ - BE_TIMER_PUSH(ra_timer.t_color); - be_ra_chordal_color(chordal_env); - BE_TIMER_POP(ra_timer.t_color); - - dump(BE_CH_DUMP_CONSTR, irg, chordal_env->cls, "-color", dump_ir_block_graph_sched); - - /* Create the ifg with the selected flavor */ - BE_TIMER_PUSH(ra_timer.t_ifg); - chordal_env->ifg = be_create_ifg(chordal_env); - BE_TIMER_POP(ra_timer.t_ifg); - -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - be_ifg_stat_t stat; - be_ifg_stat(chordal_env, &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); - - node_stats(chordal_env, &node_stat); - be_stat_ev("perms_before_coal", node_stat.n_perms); - be_stat_ev("copies_before_coal", node_stat.n_copies); - } -#endif /* FIRM_STATISTICS */ + stat_ev_dbl("bechordal_perms_before_coal", + node_stats[BE_STAT_PERMS]); + stat_ev_dbl("bechordal_copies_before_coal", + node_stats[BE_STAT_COPIES]); + } - /* copy minimization */ - BE_TIMER_PUSH(ra_timer.t_copymin); - co_driver(chordal_env); - BE_TIMER_POP(ra_timer.t_copymin); + /* copy minimization */ + BE_TIMER_PUSH(t_ra_copymin); + co_driver(chordal_env); + BE_TIMER_POP(t_ra_copymin); - dump(BE_CH_DUMP_COPYMIN, irg, chordal_env->cls, "-copymin", dump_ir_block_graph_sched); + dump(BE_CH_DUMP_COPYMIN, irg, pse->cls, "-copymin", dump_ir_block_graph_sched); - BE_TIMER_PUSH(ra_timer.t_ssa); - /* ssa destruction */ - be_ssa_destruction(chordal_env); + /* ssa destruction */ + BE_TIMER_PUSH(t_ra_ssa); + be_ssa_destruction(chordal_env); + BE_TIMER_POP(t_ra_ssa); - BE_TIMER_POP(ra_timer.t_ssa); + dump(BE_CH_DUMP_SSADESTR, irg, pse->cls, "-ssadestr", dump_ir_block_graph_sched); - dump(BE_CH_DUMP_SSADESTR, irg, chordal_env->cls, "-ssadestr", dump_ir_block_graph_sched); + 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_PUSH(ra_timer.t_verify); - if (chordal_env->opts->vrfy_option != BE_CH_VRFY_OFF) { - be_ssa_destruction_check(chordal_env); + /* the ifg exists only if there are allocatable regs */ + be_ifg_free(chordal_env->ifg); } - BE_TIMER_POP(ra_timer.t_verify); - be_ifg_free(chordal_env->ifg); + /* free some always allocated data structures */ pmap_destroy(chordal_env->border_heads); bitset_free(chordal_env->ignore_colors); - -#ifdef FIRM_STATISTICS - if (be_stat_ev_is_active()) { - node_stats(chordal_env, &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 */ } /** @@ -540,111 +355,124 @@ static void post_spill(post_spill_env_t *pse) { */ 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_INIT(main_opts); - BE_TIMER_PUSH(ra_timer.t_other); - BE_TIMER_PUSH(ra_timer.t_prolog); + BE_TIMER_PUSH(t_ra_other); + + BE_TIMER_PUSH(t_ra_prolog); - be_assure_dom_front(birg); be_assure_liveness(birg); - chordal_env.opts = &options; - chordal_env.irg = irg; - chordal_env.birg = birg; - FIRM_DBG_REGISTER(chordal_env.dbg, "firm.be.chordal"); + chordal_env.obst = &obst; + chordal_env.opts = &options; + chordal_env.irg = irg; + chordal_env.birg = birg; + chordal_env.border_heads = NULL; + 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_collect_node_stats(&last_node_stats, birg); + } 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; + + + stat_ev_ctx_push_str("bechordal_cls", cls->name); + + stat_ev_if { + be_do_stat_reg_pressure(birg, cls); + } memcpy(&pse.cenv, &chordal_env, sizeof(chordal_env)); - pre_spill(isa, j, &pse); + pse.birg = birg; + pre_spill(&pse, cls); + + 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); - BE_TIMER_PUSH(ra_timer.t_spill); - be_do_spill(&pse.cenv); - BE_TIMER_POP(ra_timer.t_spill); + post_spill(&pse, 0); - dump(BE_CH_DUMP_SPILL, irg, pse.cenv.cls, "-spill", dump_ir_block_graph_sched); + stat_ev_if { + be_node_stats_t node_stats; - post_spill(&pse); + be_collect_node_stats(&node_stats, birg); + be_subtract_node_stats(&node_stats, &last_node_stats); + be_emit_node_stats(&node_stats, "bechordal_"); + + be_copy_node_stats(&last_node_stats, &node_stats); + stat_ev_ctx_pop("bechordal_cls"); + } } - } - else { + } else { post_spill_env_t *pse; - /* the backend has it's own spiller */ - m = arch_isa_get_n_reg_class(isa); + /* the backend has its own spiller */ + 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)); - pre_spill(isa, j, &pse[j]); + pse[j].birg = birg; + pre_spill(&pse[j], pse[j].cls); } - BE_TIMER_PUSH(ra_timer.t_spill); - arch_code_generator_spill(birg->cg, &chordal_env); - BE_TIMER_POP(ra_timer.t_spill); + BE_TIMER_PUSH(t_ra_spill); + arch_code_generator_spill(birg->cg, birg); + 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) { - post_spill(&pse[j]); + post_spill(&pse[j], j); } } - BE_TIMER_PUSH(ra_timer.t_spillslots); + BE_TIMER_PUSH(t_verify); + be_verify_register_allocation(birg); + BE_TIMER_POP(t_verify); - be_coalesce_spillslots(&chordal_env); - dump(BE_CH_DUMP_SPILLSLOTS, irg, NULL, "-spillslots", dump_ir_block_graph_sched); - - BE_TIMER_POP(ra_timer.t_spillslots); - - BE_TIMER_PUSH(ra_timer.t_verify); - /* verify spillslots */ - if (options.vrfy_option == BE_CH_VRFY_WARN) { - be_verify_spillslots(main_env->arch_env, irg); - } - else if (options.vrfy_option == BE_CH_VRFY_ASSERT) { - assert(be_verify_spillslots(main_env->arch_env, irg) && "Spillslot verification failed"); - } - BE_TIMER_POP(ra_timer.t_verify); - - BE_TIMER_PUSH(ra_timer.t_epilog); - dump(BE_CH_DUMP_LOWER, irg, NULL, "-spilloff", dump_ir_block_graph_sched); - - lower_nodes_after_ra(&chordal_env, options.lower_perm_opt & BE_CH_LOWER_PERM_COPY ? 1 : 0); + 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_TIMER_POP(ra_timer.t_epilog); - - BE_TIMER_POP(ra_timer.t_other); - - be_stat_ev("insns_after", count_insns(irg)); + obstack_free(&obst, NULL); + be_liveness_invalidate(be_get_birg_liveness(birg)); + BE_TIMER_POP(t_ra_epilog); - return; + BE_TIMER_POP(t_ra_other); } static be_ra_t be_ra_chordal_allocator = { be_ra_chordal_main, }; -void be_init_chordal(void) +void be_init_chordal_main(void) { lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be"); lc_opt_entry_t *ra_grp = lc_opt_get_grp(be_grp, "ra"); @@ -655,4 +483,4 @@ void be_init_chordal(void) be_register_allocator("chordal", &be_ra_chordal_allocator); } -BE_REGISTER_MODULE_CONSTRUCTOR(be_init_chordal); +BE_REGISTER_MODULE_CONSTRUCTOR(be_init_chordal_main);