X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_main.c;h=cec2bde7e3881799c4fb10333b0eb9e3f5a3286c;hb=e7cad2f17cb3e282d309bf95475a83f944236a6f;hp=3ace53564faaecc01827ff627a1ffc42c051711f;hpb=6aa46484be1dc63021ade76137a88ad8281e049f;p=libfirm

diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c
index 3ace53564..cec2bde7e 100644
--- a/ir/be/bechordal_main.c
+++ b/ir/be/bechordal_main.c
@@ -17,10 +17,12 @@
 #include "list.h"
 #include "bitset.h"
 #include "iterator.h"
+#include "firm_config.h"
 
 #ifdef WITH_LIBCORE
 #include <libcore/lc_opts.h>
 #include <libcore/lc_opts_enum.h>
+#include <libcore/lc_timing.h>
 #endif /* WITH_LIBCORE */
 
 #include "irmode_t.h"
@@ -29,10 +31,12 @@
 #include "irgwalk.h"
 #include "irdump.h"
 #include "irdom.h"
+#include "irbitset.h"
 #include "debug.h"
 #include "xmalloc.h"
 
 #include "bechordal_t.h"
+#include "beabi.h"
 #include "beutil.h"
 #include "besched.h"
 #include "benumb_t.h"
@@ -43,22 +47,28 @@
 #include "beifg_impl.h"
 
 #include "bespillbelady.h"
-#include "bespillilp.h"
-#include "beconstrperm.h"
+#include "bespillmorgan.h"
 #include "belower.h"
 
-#include "becopyoptmain.h"
-#include "bessadestr.h"
+#ifdef WITH_ILP
+#include "bespillilp.h"
+#include "bespillremat.h"
+#include "bespillappel.h"
+#endif /* WITH_ILP */
+
 #include "becopystat.h"
+#include "becopyopt.h"
+#include "bessadestr.h"
+#include "beverify.h"
 
 
 void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
-	firm_dbg_module_t *dbg = chordal_env->dbg;
-	const arch_env_t *arch_env = chordal_env->main_env->arch_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;
+	DEBUG_ONLY(firm_dbg_module_t *dbg = chordal_env->dbg;)
 
 	/* Collect all irns */
 	obstack_init(&ob);
@@ -93,58 +103,6 @@ void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
 	obstack_free(&ob, NULL);
 }
 
-static void check_pressure_walker(ir_node *bl, void *data)
-{
-	be_chordal_env_t *env = data;
-	firm_dbg_module_t *dbg = env->dbg;
-	int n_regs = arch_register_class_n_regs(env->cls);
-
-	pset *live = pset_new_ptr_default();
-	int step = 0;
-	ir_node *irn;
-	irn_live_t *li;
-
-	live_foreach(bl, li) {
-		if(live_is_end(li) && chordal_has_class(env, li->irn)) {
-			ir_node *irn = (ir_node *) li->irn;
-			pset_insert_ptr(live, irn);
-		}
-	}
-
-	DBG((dbg, LEVEL_1, "end set for %+F\n", bl));
-	for(irn = pset_first(live); irn; irn = pset_next(live))
-		DBG((dbg, LEVEL_1, "\t%+F\n", irn));
-
-	sched_foreach_reverse(bl, irn) {
-		int i, n;
-		int pressure = pset_count(live);
-
-		DBG((dbg, LEVEL_1, "%+10F@%+10F: pressure %d\n", bl, irn, pressure));
-
-		if(pressure > n_regs) {
-			ir_node *x;
-			ir_printf("%+10F@%+10F: pressure to high: %d\n", bl, irn, pressure);
-			for(x = pset_first(live); x; x = pset_next(live))
-				ir_printf("\t%+10F\n", x);
-		}
-
-		if(chordal_has_class(env, irn))
-			pset_remove_ptr(live, irn);
-
-		for(i = 0, n = get_irn_arity(irn); i < n; i++) {
-			ir_node *op = get_irn_n(irn, i);
-			if(chordal_has_class(env, op) && !is_Phi(irn))
-				pset_insert_ptr(live, op);
-		}
-		step++;
-	}
-}
-
-void be_check_pressure(const be_chordal_env_t *env)
-{
-	irg_block_walk_graph(env->irg, check_pressure_walker, NULL, (void *) env);
-}
-
 int nodes_interfere(const be_chordal_env_t *env, const ir_node *a, const ir_node *b)
 {
 	if(env->ifg)
@@ -155,35 +113,76 @@ int nodes_interfere(const be_chordal_env_t *env, const ir_node *a, const ir_node
 
 
 static be_ra_chordal_opts_t options = {
-	BE_CH_DUMP_ALL,
+	BE_CH_DUMP_NONE,
 	BE_CH_SPILL_BELADY,
-	BE_CH_COPYMIN_HEUR,
+	BE_CH_COPYMIN_HEUR1,
 	BE_CH_IFG_STD,
-	BE_CH_LOWER_PERM_SWAP
+	BE_CH_LOWER_PERM_SWAP,
+	BE_CH_VRFY_WARN,
 };
 
 #ifdef WITH_LIBCORE
 static const lc_opt_enum_int_items_t spill_items[] = {
+	{ "morgan", BE_CH_SPILL_MORGAN },
 	{ "belady", BE_CH_SPILL_BELADY },
-	{ "ilp",	BE_CH_SPILL_ILP },
+#ifdef WITH_ILP
+	{ "ilp",    BE_CH_SPILL_ILP    },
+	{ "remat",  BE_CH_SPILL_REMAT  },
+	{ "appel",  BE_CH_SPILL_APPEL  },
+#endif /* WITH_ILP */
 	{ NULL, 0 }
 };
 
 static const lc_opt_enum_int_items_t copymin_items[] = {
-	{ "heur", BE_CH_COPYMIN_HEUR },
-	{ "ilp",  BE_CH_COPYMIN_ILP },
+	{ "none",  BE_CH_COPYMIN_NONE      },
+	{ "heur1", BE_CH_COPYMIN_HEUR1     },
+	{ "heur2", BE_CH_COPYMIN_HEUR2     },
+	{ "stat",  BE_CH_COPYMIN_STAT      },
+	{ "park",  BE_CH_COPYMIN_PARK_MOON },
+#ifdef WITH_ILP
+	{ "ilp1",  BE_CH_COPYMIN_ILP1 },
+	{ "ilp2",  BE_CH_COPYMIN_ILP2 },
+#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 },
-	{ NULL, 0 }
+	{ "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[] = {
-	{ "swap", BE_CH_LOWER_PERM_SWAP },
 	{ "copy", BE_CH_LOWER_PERM_COPY },
+	{ "swap", BE_CH_LOWER_PERM_SWAP },
+	{ NULL, 0 }
+};
+
+static const lc_opt_enum_int_items_t lower_perm_stat_items[] = {
+	{ NULL, 0 }
+};
+
+static const lc_opt_enum_int_items_t dump_items[] = {
+	{ "spill",    BE_CH_DUMP_SPILL     },
+	{ "live",     BE_CH_DUMP_LIVE      },
+	{ "color",    BE_CH_DUMP_COLOR     },
+	{ "copymin",  BE_CH_DUMP_COPYMIN   },
+	{ "ssadestr", BE_CH_DUMP_SSADESTR  },
+	{ "tree",     BE_CH_DUMP_TREE_INTV },
+	{ "constr",   BE_CH_DUMP_CONSTR    },
+	{ "lower",    BE_CH_DUMP_LOWER     },
+	{ "all",      BE_CH_DUMP_ALL       },
+	{ NULL, 0 }
+};
+
+static const lc_opt_enum_int_items_t be_ch_vrfy_items[] = {
+	{ "off",    BE_CH_VRFY_OFF    },
+	{ "warn",   BE_CH_VRFY_WARN   },
+	{ "assert", BE_CH_VRFY_ASSERT },
 	{ NULL, 0 }
 };
 
@@ -196,97 +195,264 @@ static lc_opt_enum_int_var_t copymin_var = {
 };
 
 static lc_opt_enum_int_var_t ifg_flavor_var = {
-	&options.spill_method, ifg_flavor_items
+	&options.ifg_flavor, ifg_flavor_items
 };
 
 static lc_opt_enum_int_var_t lower_perm_var = {
-	&options.lower_perm_method, lower_perm_items
+	&options.lower_perm_opt, lower_perm_items
+};
+
+static lc_opt_enum_int_var_t dump_var = {
+	&options.dump_flags, dump_items
+};
+
+static lc_opt_enum_int_var_t be_ch_vrfy_var = {
+	&options.vrfy_option, be_ch_vrfy_items
+};
+
+static const lc_opt_table_entry_t be_chordal_options[] = {
+	LC_OPT_ENT_ENUM_MASK("spill",	"spill method (belady, ilp, remat or appel)", &spill_var),
+	LC_OPT_ENT_ENUM_PTR ("copymin", "copymin method (none, heur1, heur2, ilp1, ilp2 or stat)", &copymin_var),
+	LC_OPT_ENT_ENUM_PTR ("ifg",     "interference graph flavour (std, fast, clique, pointer, list, check)", &ifg_flavor_var),
+	LC_OPT_ENT_ENUM_PTR ("perm",    "perm lowering options (copy or swap)", &lower_perm_var),
+	LC_OPT_ENT_ENUM_MASK("dump",    "select dump phases", &dump_var),
+	LC_OPT_ENT_ENUM_PTR ("vrfy",    "verify options (off, warn, assert)", &be_ch_vrfy_var),
+	{ NULL }
 };
 
 static void be_ra_chordal_register_options(lc_opt_entry_t *grp)
 {
-	grp = lc_opt_get_grp(grp, "chordal");
+	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);
 }
-#endif
+#endif /* WITH_LIBCORE */
 
 static void dump(unsigned mask, ir_graph *irg,
 				 const arch_register_class_t *cls,
 				 const char *suffix,
 				 void (*dump_func)(ir_graph *, const char *))
 {
-	if(1 || (options.dump_flags & mask) == mask) {
-		if(cls) {
+	if((options.dump_flags & mask) == mask) {
+		if (cls) {
 			char buf[256];
 			snprintf(buf, sizeof(buf), "-%s%s", cls->name, suffix);
-			dump_func(irg, buf);
+			be_dump(irg, buf, dump_func);
 		}
-
 		else
-			dump_func(irg, suffix);
+			be_dump(irg, suffix, dump_func);
 	}
 }
 
-static void be_ra_chordal_main(const be_main_env_t *main_env, 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(chordal_env->ifg, f);
+	fclose(f);
+
+	f = be_chordal_open(chordal_env, "list", "log");
+	chordal_env->ifg = be_ifg_list_new(chordal_env);
+	be_ifg_check_sorted(chordal_env->ifg, f);
+	fclose(f);
+
+	f = be_chordal_open(chordal_env, "clique", "log");
+	chordal_env->ifg = be_ifg_clique_new(chordal_env);
+	be_ifg_check_sorted(chordal_env->ifg, f);
+	fclose(f);
+
+	f = be_chordal_open(chordal_env, "pointer", "log");
+	chordal_env->ifg = be_ifg_pointer_new(chordal_env);
+	be_ifg_check_sorted(chordal_env->ifg, f);
+	fclose(f);
+
+	chordal_env->ifg = NULL;
+};
+
+static void be_ra_chordal_main(const be_irg_t *bi)
+{
+	const be_main_env_t *main_env = bi->main_env;
+	const arch_isa_t    *isa      = arch_env_get_isa(main_env->arch_env);
+	ir_graph            *irg      = bi->irg;
+	copy_opt_t          *co;
+
 	int j, m;
 	be_chordal_env_t chordal_env;
-	const arch_isa_t *isa = arch_env_get_isa(main_env->arch_env);
+
+	//lc_timer_t *timer = lc_timer_register("getTime","get Time of copy minimization using the ifg");
+	//unsigned long elapsed_milisec = 0;
 
 	compute_doms(irg);
 
-	chordal_env.irg          = irg;
-	chordal_env.dbg          = firm_dbg_register("be.chordal");
-	chordal_env.main_env     = main_env;
-	chordal_env.dom_front    = be_compute_dominance_frontiers(irg);
+	chordal_env.opts          = &options;
+	chordal_env.irg           = irg;
+	chordal_env.birg          = bi;
+	chordal_env.dom_front     = be_compute_dominance_frontiers(irg);
+	FIRM_DBG_REGISTER(chordal_env.dbg, "firm.be.chordal");
 
 	obstack_init(&chordal_env.obst);
 
-	lower_nodes_before_ra(&chordal_env, 0);
-	dump(BE_CH_DUMP_LOWER, irg, NULL, "-belower-before-ra", dump_ir_block_graph_sched);
-
 	/* Perform the following for each register class. */
 	for(j = 0, m = arch_isa_get_n_reg_class(isa); j < m; ++j) {
-		chordal_env.border_heads = pmap_create();
-		chordal_env.cls = arch_isa_get_reg_class(isa, j);
+		chordal_env.cls           = arch_isa_get_reg_class(isa, j);
+		chordal_env.border_heads  = pmap_create();
+		chordal_env.ignore_colors = bitset_malloc(chordal_env.cls->n_regs);
+
+		/* put all ignore registers into the ignore register set. */
+		put_ignore_colors(&chordal_env);
 
 		be_liveness(irg);
 		dump(BE_CH_DUMP_LIVE, irg, chordal_env.cls, "-live", dump_ir_block_graph_sched);
 
 		/* spilling */
 		switch(options.spill_method) {
+		case BE_CH_SPILL_MORGAN:
+			be_spill_morgan(&chordal_env);
+			break;
 		case BE_CH_SPILL_BELADY:
 			be_spill_belady(&chordal_env);
 			break;
+#ifdef WITH_ILP
 		case BE_CH_SPILL_ILP:
 			be_spill_ilp(&chordal_env);
 			break;
+                case BE_CH_SPILL_REMAT:
+                        be_spill_remat(&chordal_env);
+                        break;
+		case BE_CH_SPILL_APPEL:
+			be_spill_appel(&chordal_env);
+			break;
+#endif /* WITH_ILP */
 		default:
 			fprintf(stderr, "no valid spiller selected. falling back to belady\n");
 			be_spill_belady(&chordal_env);
 		}
 		dump(BE_CH_DUMP_SPILL, irg, chordal_env.cls, "-spill", dump_ir_block_graph_sched);
-		be_liveness(irg);
-		be_check_pressure(&chordal_env);
-
-		/* Insert perms before reg-constrained instructions */
-		be_insert_constr_perms(&chordal_env);
-		dump(BE_CH_DUMP_CONSTR, irg, chordal_env.cls, "-constr", dump_ir_block_graph_sched);
+		be_abi_fix_stack_nodes(bi->abi);
 
-		be_liveness(irg);
-		be_numbering(irg);
-		be_check_pressure(&chordal_env);
+		/* verify schedule and register pressure */
+		if (options.vrfy_option == BE_CH_VRFY_WARN) {
+			be_verify_schedule(irg);
+			be_verify_register_pressure(chordal_env.birg->main_env->arch_env, chordal_env.cls, irg);
+		}
+		else if (options.vrfy_option == BE_CH_VRFY_ASSERT) {
+			assert(be_verify_schedule(irg) && "Schedule verification failed");
+			assert(be_verify_register_pressure(chordal_env.birg->main_env->arch_env, chordal_env.cls, irg)
+				&& "Register pressure verification failed");
+		}
 
 		/* Color the graph. */
+		be_liveness(irg);
 		be_ra_chordal_color(&chordal_env);
 		dump(BE_CH_DUMP_CONSTR, irg, chordal_env.cls, "-color", dump_ir_block_graph_sched);
 
-		/* Build the interference graph. */
-		chordal_env.ifg = be_ifg_std_new(&chordal_env);
-		be_ifg_check(chordal_env.ifg);
+		/* Check the implementations of the ifg */
+
+		switch (options.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);
+				//be_ifg_check(chordal_env.ifg);
+				//be_ifg_check_sorted(chordal_env.ifg);
+				break;
+		}
+
+		/* start timer */
+		//lc_timer_reset_and_start(timer);
 
 		/* copy minimization */
-		copystat_collect_cls(&chordal_env);
-		be_copy_opt(&chordal_env);
+		co = NULL;
+		if (options.copymin_method != BE_CH_COPYMIN_NONE && options.copymin_method != BE_CH_COPYMIN_STAT) {
+			co = new_copy_opt(&chordal_env, co_get_costs_loop_depth);
+			co_build_ou_structure(co);
+			co_build_graph_structure(co);
+		}
+
+		/* stop timer */
+		//lc_timer_stop(timer);
+		//elapsed_milisec = lc_timer_elapsed_msec(timer);
+
+		//ir_printf("%u\n", elapsed_milisec);
+
+		switch(options.copymin_method) {
+			case BE_CH_COPYMIN_HEUR1:
+				co_solve_heuristic(co);
+				break;
+			case BE_CH_COPYMIN_HEUR2:
+				co_solve_heuristic_new(co);
+				break;
+			case BE_CH_COPYMIN_PARK_MOON:
+				co_solve_park_moon(co);
+				break;
+			case BE_CH_COPYMIN_STAT:
+				co_compare_solvers(&chordal_env);
+				break;
+#ifdef WITH_ILP
+			case BE_CH_COPYMIN_ILP1:
+				printf("FIXME: %s:%d ILP1 not yet implemented!\n", __FILE__, __LINE__);
+				co_solve_ilp1(co, 60.0);
+				break;
+			case BE_CH_COPYMIN_ILP2:
+				co_solve_ilp2(co, 60.0);
+				break;
+#endif /* WITH_ILP */
+			case BE_CH_COPYMIN_NONE:
+			default:
+				break;
+		}
+
+		if (co) {
+			co_free_graph_structure(co);
+			co_free_ou_structure(co);
+			free_copy_opt(co);
+		}
+
 		dump(BE_CH_DUMP_COPYMIN, irg, chordal_env.cls, "-copymin", dump_ir_block_graph_sched);
 		be_ra_chordal_check(&chordal_env);
 
@@ -299,20 +465,19 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
 		copystat_dump(irg);
 
 		be_ifg_free(chordal_env.ifg);
-		be_numbering_done(irg);
-
 		pmap_destroy(chordal_env.border_heads);
+		bitset_free(chordal_env.ignore_colors);
 	}
 
 	be_compute_spill_offsets(&chordal_env);
 
 	dump(BE_CH_DUMP_LOWER, irg, NULL, "-spilloff", dump_ir_block_graph_sched);
 
-	lower_nodes_after_ra(&chordal_env, options.lower_perm_method == BE_CH_LOWER_PERM_COPY ? 1 : 0);
+	lower_nodes_after_ra(&chordal_env, 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);
 
-	be_free_dominance_frontiers(chordal_env.dom_front);
 	obstack_free(&chordal_env.obst, NULL);
+	be_free_dominance_frontiers(chordal_env.dom_front);
 }
 
 const be_ra_t be_ra_chordal_allocator = {