X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_main.c;h=278b5c282a0785fbc8847f4649d59726be39e9f1;hb=dfc341ac6f54b4b0922d605e28333be76f487c68;hp=451efff96c79052468b67b1240ff285c8a453474;hpb=9067a4525f450b43a1c46df0a339562d01f0293b;p=libfirm diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c index 451efff96..278b5c282 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) 1995-2007 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. * - * Copyright (C) 2005-2006 Universitaet Karlsruhe - * Released under the GPL + * 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. * - * Driver for the chordal register allocator. + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. + * + * 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" @@ -22,11 +38,9 @@ #include "iterator.h" #include "firm_config.h" -#ifdef WITH_LIBCORE #include #include #include -#endif /* WITH_LIBCORE */ #include "ircons_t.h" #include "irmode_t.h" @@ -43,6 +57,7 @@ #include "debug.h" #include "xmalloc.h" #include "execfreq.h" +#include "iredges_t.h" #include "bechordal_t.h" #include "beabi.h" @@ -51,12 +66,16 @@ #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" @@ -77,24 +96,17 @@ static be_ra_chordal_opts_t options = { BE_CH_DUMP_NONE, - BE_CH_SPILL_BELADY, - BE_CH_IFG_STD, BE_CH_LOWER_PERM_SWAP, BE_CH_VRFY_WARN, }; -/** Enable extreme live range splitting. */ -static int be_elr_split = 0; - -/** Assumed loop iteration count for execution frequency estimation. */ -static int be_loop_weight = 9; - 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; -#ifdef WITH_LIBCORE static be_ra_timer_t ra_timer = { NULL, NULL, @@ -109,25 +121,6 @@ static be_ra_timer_t ra_timer = { NULL, }; -static const lc_opt_enum_int_items_t spill_items[] = { - { "morgan", BE_CH_SPILL_MORGAN }, - { "belady", BE_CH_SPILL_BELADY }, -#ifdef WITH_ILP - { "remat", BE_CH_SPILL_REMAT }, -#endif /* WITH_ILP */ - { NULL, 0 } -}; - -static const lc_opt_enum_int_items_t ifg_flavor_items[] = { - { "std", BE_CH_IFG_STD }, - { "fast", BE_CH_IFG_FAST }, - { "clique", BE_CH_IFG_CLIQUE }, - { "pointer", BE_CH_IFG_POINTER }, - { "list", BE_CH_IFG_LIST }, - { "check", BE_CH_IFG_CHECK }, - { NULL, 0 } -}; - static const lc_opt_enum_int_items_t lower_perm_items[] = { { "copy", BE_CH_LOWER_PERM_COPY }, { "swap", BE_CH_LOWER_PERM_SWAP }, @@ -139,6 +132,7 @@ 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 }, @@ -160,14 +154,6 @@ static const lc_opt_enum_int_items_t be_ch_vrfy_items[] = { { NULL, 0 } }; -static lc_opt_enum_int_var_t spill_var = { - &options.spill_method, spill_items -}; - -static lc_opt_enum_int_var_t ifg_flavor_var = { - &options.ifg_flavor, ifg_flavor_items -}; - static lc_opt_enum_int_var_t lower_perm_var = { &options.lower_perm_opt, lower_perm_items }; @@ -181,90 +167,12 @@ static lc_opt_enum_int_var_t be_ch_vrfy_var = { }; static const lc_opt_table_entry_t be_chordal_options[] = { - LC_OPT_ENT_ENUM_INT ("spill", "spill method", &spill_var), - LC_OPT_ENT_ENUM_PTR ("ifg", "interference graph flavour", &ifg_flavor_var), 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), - LC_OPT_ENT_INT ("loop_weight", "assumed amount of loop iterations for guessing the execution frequency", &be_loop_weight), { NULL } }; -extern void be_spill_remat_register_options(lc_opt_entry_t *ent); - -void be_ra_chordal_check(be_chordal_env_t *chordal_env) { - const arch_env_t *arch_env = chordal_env->birg->main_env->arch_env; - struct obstack ob; - pmap_entry *pme; - ir_node **nodes, *n1, *n2; - int i, o; - be_lv_t *lv = chordal_env->birg->lv; - DEBUG_ONLY(firm_dbg_module_t *dbg = chordal_env->dbg;) - - /* Collect all irns */ - obstack_init(&ob); - pmap_foreach(chordal_env->border_heads, pme) { - border_t *curr; - struct list_head *head = pme->value; - list_for_each_entry(border_t, curr, head, list) - if (curr->is_def && curr->is_real) - if (arch_get_irn_reg_class(arch_env, curr->irn, -1) == chordal_env->cls) - obstack_ptr_grow(&ob, curr->irn); - } - obstack_ptr_grow(&ob, NULL); - nodes = (ir_node **) obstack_finish(&ob); - - /* Check them */ - for (i = 0, n1 = nodes[i]; n1; n1 = nodes[++i]) { - const arch_register_t *n1_reg, *n2_reg; - - n1_reg = arch_get_irn_register(arch_env, n1); - if (!arch_reg_is_allocatable(arch_env, n1, -1, n1_reg)) { - DBG((dbg, 0, "Register %s assigned to %+F is not allowed\n", n1_reg->name, n1)); - assert(0 && "Register constraint does not hold"); - } - for (o = i+1, n2 = nodes[o]; n2; n2 = nodes[++o]) { - n2_reg = arch_get_irn_register(arch_env, n2); - if (values_interfere(lv, n1, n2) && n1_reg == n2_reg) { - DBG((dbg, 0, "Values %+F and %+F interfere and have the same register assigned: %s\n", n1, n2, n1_reg->name)); - assert(0 && "Interfering values have the same color!"); - } - } - } - obstack_free(&ob, NULL); -} - -int nodes_interfere(const be_chordal_env_t *env, const ir_node *a, const ir_node *b) -{ - if(env->ifg) - return be_ifg_connected(env->ifg, a, b); - else - return values_interfere(env->birg->lv, a, b); -} - -static void be_ra_chordal_register_options(lc_opt_entry_t *grp) -{ - static int run_once = 0; - lc_opt_entry_t *chordal_grp; - - if (! run_once) { - run_once = 1; - chordal_grp = lc_opt_get_grp(grp, "chordal"); - - lc_opt_add_table(chordal_grp, be_chordal_options); - - co_register_options(chordal_grp); -#ifdef WITH_JVM - be_java_coal_register_options(chordal_grp); -#endif -#ifdef WITH_ILP - be_spill_remat_register_options(chordal_grp); -#endif - } -} -#endif /* WITH_LIBCORE */ - static void dump(unsigned mask, ir_graph *irg, const arch_register_class_t *cls, const char *suffix, @@ -281,56 +189,6 @@ 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); -} - -FILE *be_chordal_open(const be_chordal_env_t *env, const char *prefix, const char *suffix) -{ - char buf[1024]; - - ir_snprintf(buf, sizeof(buf), "%s%F_%s%s", prefix, env->irg, env->cls->name, suffix); - return fopen(buf, "wt"); -} - -void check_ifg_implementations(be_chordal_env_t *chordal_env) -{ - FILE *f; - - f = be_chordal_open(chordal_env, "std", ".log"); - chordal_env->ifg = be_ifg_std_new(chordal_env); - be_ifg_check_sorted_to_file(chordal_env->ifg, f); - fclose(f); - - f = be_chordal_open(chordal_env, "list", ".log"); - be_ifg_free(chordal_env->ifg); - chordal_env->ifg = be_ifg_list_new(chordal_env); - be_ifg_check_sorted_to_file(chordal_env->ifg, f); - fclose(f); - - f = be_chordal_open(chordal_env, "clique", ".log"); - be_ifg_free(chordal_env->ifg); - chordal_env->ifg = be_ifg_clique_new(chordal_env); - be_ifg_check_sorted_to_file(chordal_env->ifg, f); - fclose(f); - - f = be_chordal_open(chordal_env, "pointer", ".log"); - be_ifg_free(chordal_env->ifg); - chordal_env->ifg = be_ifg_pointer_new(chordal_env); - be_ifg_check_sorted_to_file(chordal_env->ifg, f); - fclose(f); - - chordal_env->ifg = NULL; -}; - /** * Checks for every reload if it's user can perform the load on itself. */ @@ -358,7 +216,6 @@ 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); } } @@ -367,6 +224,7 @@ 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()); } } @@ -390,17 +248,18 @@ typedef struct _node_stat_t { } node_stat_t; struct node_stat_walker { - node_stat_t *stat; - const be_chordal_env_t *cenv; - bitset_t *mem_phis; + node_stat_t *stat; + const arch_env_t *arch_env; + bitset_t *mem_phis; + const arch_register_class_t *cls; }; 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; + struct node_stat_walker *env = data; + const arch_env_t *aenv = env->arch_env; - if(arch_irn_consider_in_reg_alloc(aenv, env->cenv->cls, irn)) { + if (arch_irn_consider_in_reg_alloc(aenv, env->cls, irn)) { /* if the node is a normal phi */ if(is_Phi(irn)) @@ -435,15 +294,16 @@ static void node_stat_walker(ir_node *irn, void *data) } } -static void node_stats(const be_chordal_env_t *cenv, node_stat_t *stat) +static void node_stats(be_irg_t *birg, const arch_register_class_t *cls, 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.arch_env = birg->main_env->arch_env; + env.mem_phis = bitset_irg_malloc(birg->irg); env.stat = stat; - irg_walk_graph(cenv->irg, NULL, node_stat_walker, &env); + env.cls = cls; + irg_walk_graph(birg->irg, NULL, node_stat_walker, &env); bitset_free(env.mem_phis); } @@ -469,7 +329,6 @@ static unsigned int count_insns(ir_graph *irg) return cnt; } -#ifdef WITH_LIBCORE /** * Initialize all timers. */ @@ -499,6 +358,8 @@ static void be_init_timer(be_options_t *main_opts) 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; } } @@ -524,46 +385,42 @@ static void be_init_timer(be_options_t *main_opts) 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 */ /** * 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; - chordal_env->cls = arch_isa_get_reg_class(isa, cls_idx); + pse->cls = arch_isa_get_reg_class(isa, cls_idx); + chordal_env->cls = pse->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_tags[STAT_TAG_CLS] = pse->cls->name; be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file); /* perform some node statistics. */ - node_stats(chordal_env, &node_stat); + node_stats(birg, pse->cls, &node_stat); be_stat_ev("phis_before_spill", node_stat.n_phis); } #endif /* FIRM_STATISTICS */ /* 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_pre_spill_prepare_constr(chordal_env); - dump(BE_CH_DUMP_CONSTR, chordal_env->irg, chordal_env->cls, "-constr-pre", dump_ir_block_graph_sched); + 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(chordal_env->irg, - chordal_env->birg->main_env->arch_env, chordal_env->birg->exec_freq); + 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 */ } @@ -571,133 +428,125 @@ static void pre_spill(const arch_isa_t *isa, int cls_idx, post_spill_env_t *pse) /** * 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; + 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; + 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_ev_l("spillcosts", (long) spillcosts); + be_stat_tags[STAT_TAG_CLS] = pse->cls->name; + be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file); - 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); - } + 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 */ - check_for_memory_operands(chordal_env); + /* + 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. + */ + if (iteration == 0) { + check_for_memory_operands(chordal_env); + be_abi_fix_stack_nodes(birg->abi); + } - be_abi_fix_stack_nodes(birg->abi, birg->lv); + BE_TIMER_PUSH(ra_timer.t_verify); - BE_TIMER_PUSH(ra_timer.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(ra_timer.t_verify); - /* 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); + /* Color the graph. */ + BE_TIMER_PUSH(ra_timer.t_color); + be_ra_chordal_color(chordal_env); + BE_TIMER_POP(ra_timer.t_color); - if (be_elr_split && ! splitted) { - extreme_liverange_splitting(chordal_env); - splitted = 1; - } + dump(BE_CH_DUMP_CONSTR, irg, pse->cls, "-color", dump_ir_block_graph_sched); - /* 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); - switch (chordal_env->opts->ifg_flavor) { - default: - fprintf(stderr, "no valid ifg flavour selected. falling back to std\n"); - case BE_CH_IFG_STD: - case BE_CH_IFG_FAST: - chordal_env->ifg = be_ifg_std_new(chordal_env); - break; - case BE_CH_IFG_CLIQUE: - chordal_env->ifg = be_ifg_clique_new(chordal_env); - break; - case BE_CH_IFG_POINTER: - chordal_env->ifg = be_ifg_pointer_new(chordal_env); - break; - case BE_CH_IFG_LIST: - chordal_env->ifg = be_ifg_list_new(chordal_env); - break; - case BE_CH_IFG_CHECK: - check_ifg_implementations(chordal_env); - /* Build the interference graph. */ - chordal_env->ifg = be_ifg_std_new(chordal_env); - break; - } - BE_TIMER_POP(ra_timer.t_ifg); + /* 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); - } + 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); + + 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); + } #endif /* FIRM_STATISTICS */ - /* 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(ra_timer.t_copymin); + co_driver(chordal_env); + BE_TIMER_POP(ra_timer.t_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); + BE_TIMER_PUSH(ra_timer.t_ssa); - /* ssa destruction */ - be_ssa_destruction(chordal_env); + /* ssa destruction */ + be_ssa_destruction(chordal_env); - BE_TIMER_POP(ra_timer.t_ssa); + BE_TIMER_POP(ra_timer.t_ssa); - dump(BE_CH_DUMP_SSADESTR, irg, chordal_env->cls, "-ssadestr", dump_ir_block_graph_sched); + 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_ssa_destruction_check(chordal_env); + } + 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 */ - 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 */ } /** @@ -706,7 +555,7 @@ static void post_spill(post_spill_env_t *pse) { * @param birg Backend irg object * @return Structure containing timer for the single phases or NULL if no timing requested. */ -static be_ra_timer_t *be_ra_chordal_main(be_irg_t *birg) +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); @@ -714,6 +563,7 @@ static be_ra_timer_t *be_ra_chordal_main(be_irg_t *birg) be_options_t *main_opts = main_env->options; int j, m; be_chordal_env_t chordal_env; + struct obstack obst; BE_TIMER_INIT(main_opts); BE_TIMER_PUSH(ra_timer.t_other); @@ -722,12 +572,15 @@ static be_ra_timer_t *be_ra_chordal_main(be_irg_t *birg) 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); @@ -741,34 +594,18 @@ static be_ra_timer_t *be_ra_chordal_main(be_irg_t *birg) post_spill_env_t pse; memcpy(&pse.cenv, &chordal_env, sizeof(chordal_env)); + pse.birg = birg; pre_spill(isa, j, &pse); BE_TIMER_PUSH(ra_timer.t_spill); - /* spilling */ - switch(options.spill_method) { - case BE_CH_SPILL_MORGAN: - be_spill_morgan(&pse.cenv); - break; - case BE_CH_SPILL_BELADY: - be_spill_belady(&pse.cenv); - break; - #ifdef WITH_ILP - case BE_CH_SPILL_REMAT: - be_spill_remat(&pse.cenv); - break; - #endif /* WITH_ILP */ - default: - fprintf(stderr, "no valid spiller selected. falling back to belady\n"); - be_spill_belady(&pse.cenv); - } + be_do_spill(birg, pse.cls); BE_TIMER_POP(ra_timer.t_spill); - dump(BE_CH_DUMP_SPILL, irg, pse.cenv.cls, "-spill", dump_ir_block_graph_sched); + dump(BE_CH_DUMP_SPILL, irg, pse.cls, "-spill", dump_ir_block_graph_sched); - post_spill(&pse); + post_spill(&pse, 0); } - } - else { + } else { post_spill_env_t *pse; /* the backend has it's own spiller */ @@ -778,60 +615,48 @@ static be_ra_timer_t *be_ra_chordal_main(be_irg_t *birg) 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]); } BE_TIMER_PUSH(ra_timer.t_spill); - arch_code_generator_spill(birg->cg, &chordal_env); + arch_code_generator_spill(birg->cg, birg); BE_TIMER_POP(ra_timer.t_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_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); + 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); + obstack_free(&obst, NULL); + be_invalidate_liveness(birg); BE_TIMER_POP(ra_timer.t_epilog); BE_TIMER_POP(ra_timer.t_other); be_stat_ev("insns_after", count_insns(irg)); -#ifdef WITH_LIBCORE - return main_opts->timing == BE_TIME_ON ? &ra_timer : NULL; -#endif /* WITH_LIBCORE */ - return NULL; + return; } -const be_ra_t be_ra_chordal_allocator = { -#ifdef WITH_LIBCORE - be_ra_chordal_register_options, -#else - NULL, -#endif +static be_ra_t be_ra_chordal_allocator = { be_ra_chordal_main, }; + +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"); + lc_opt_entry_t *chordal_grp = lc_opt_get_grp(ra_grp, "chordal"); + + lc_opt_add_table(chordal_grp, be_chordal_options); + + be_register_allocator("chordal", &be_ra_chordal_allocator); +} + +BE_REGISTER_MODULE_CONSTRUCTOR(be_init_chordal_main);