values may die at every use
[libfirm] / ir / be / bechordal_main.c
index 017f077..7a6c3ec 100644 (file)
 #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"
@@ -93,7 +95,7 @@ void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
                for (o = i+1, n2 = nodes[o]; n2; n2 = nodes[++o]) {
                        n2_reg = arch_get_irn_register(arch_env, n2);
                        if (values_interfere(n1, n2) && n1_reg == n2_reg) {
-                               DBG((dbg, 0, "Values %+F and %+F interfere and have the same register assigned\n", n1, n2));
+                               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!");
                        }
                }
@@ -113,21 +115,41 @@ 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_NONE,
        BE_CH_SPILL_BELADY,
-       BE_CH_COPYMIN_HEUR1,
+       BE_CH_COPYMIN_HEUR2,
        BE_CH_IFG_STD,
        BE_CH_LOWER_PERM_SWAP,
        BE_CH_VRFY_WARN,
 };
 
+static be_ra_timer_t ra_timer = {
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+       NULL,
+
+};
+
 #ifdef WITH_LIBCORE
 static const lc_opt_enum_int_items_t spill_items[] = {
        { "morgan", BE_CH_SPILL_MORGAN },
        { "belady", BE_CH_SPILL_BELADY },
 #ifdef WITH_ILP
-       { "ilp",    BE_CH_SPILL_ILP },
-        { "remat",  BE_CH_SPILL_REMAT },
-        { "appel",  BE_CH_SPILL_APPEL },
-#endif
+       { "ilp",    BE_CH_SPILL_ILP    },
+       { "remat",  BE_CH_SPILL_REMAT  },
+       { "appel",  BE_CH_SPILL_APPEL  },
+#endif /* WITH_ILP */
        { NULL, 0 }
 };
 
@@ -140,14 +162,18 @@ static const lc_opt_enum_int_items_t copymin_items[] = {
 #ifdef WITH_ILP
        { "ilp1",  BE_CH_COPYMIN_ILP1 },
        { "ilp2",  BE_CH_COPYMIN_ILP2 },
-#endif
+#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[] = {
@@ -207,7 +233,7 @@ 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_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 or fast)", &ifg_flavor_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),
@@ -266,16 +292,72 @@ FILE *be_chordal_open(const be_chordal_env_t *env, const char *prefix, const cha
        return fopen(buf, "wt");
 }
 
-static void be_ra_chordal_main(const be_irg_t *bi)
+void check_ifg_implementations(be_chordal_env_t *chordal_env)
 {
-       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;
+       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;
+};
+
+static be_ra_timer_t *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;
+       be_options_t        *main_opts = main_env->options;
        copy_opt_t          *co;
 
        int j, m;
        be_chordal_env_t chordal_env;
 
+       if (main_opts->timing == BE_TIME_ON) {
+               ra_timer.t_prolog  = lc_timer_register("prolog",   "regalloc prolog");
+               ra_timer.t_epilog  = lc_timer_register("epilog",   "regalloc epilog");
+               ra_timer.t_live    = lc_timer_register("liveness", "be liveness");
+               ra_timer.t_spill   = lc_timer_register("spill",    "spiller");
+               ra_timer.t_color   = lc_timer_register("color",    "graph coloring");
+               ra_timer.t_ifg     = lc_timer_register("ifg",      "build interference graph");
+               ra_timer.t_copymin = lc_timer_register("copymin",  "copy minimization");
+               ra_timer.t_ssa     = lc_timer_register("ssadestr", "ssa destruction");
+
+               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_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);
+       }
+
+#define BE_TIME_START(timer) if (main_opts->timing == BE_TIME_ON) lc_timer_start(timer)
+#define BE_TIME_STOP(timer)  if (main_opts->timing == BE_TIME_ON) lc_timer_stop(timer)
+
+       BE_TIME_START(ra_timer.t_prolog);
+
        compute_doms(irg);
 
        chordal_env.opts          = &options;
@@ -286,18 +368,26 @@ static void be_ra_chordal_main(const be_irg_t *bi)
 
        obstack_init(&chordal_env.obst);
 
+       BE_TIME_STOP(ra_timer.t_prolog);
+
        /* Perform the following for each register class. */
        for(j = 0, m = arch_isa_get_n_reg_class(isa); j < m; ++j) {
+               FILE *f;
                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);
 
+               BE_TIME_START(ra_timer.t_live);
+
                /* 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);
 
+               BE_TIME_STOP(ra_timer.t_live);
+               BE_TIME_START(ra_timer.t_spill);
+
                /* spilling */
                switch(options.spill_method) {
                case BE_CH_SPILL_MORGAN:
@@ -310,9 +400,9 @@ static void be_ra_chordal_main(const be_irg_t *bi)
                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_REMAT:
+                       be_spill_remat(&chordal_env);
+                       break;
                case BE_CH_SPILL_APPEL:
                        be_spill_appel(&chordal_env);
                        break;
@@ -335,14 +425,67 @@ static void be_ra_chordal_main(const be_irg_t *bi)
                                && "Register pressure verification failed");
                }
 
-               /* Color the graph. */
+               BE_TIME_STOP(ra_timer.t_spill);
+               BE_TIME_START(ra_timer.t_live);
                be_liveness(irg);
+               BE_TIME_STOP(ra_timer.t_live);
+
+               /* Color the graph. */
+               BE_TIME_START(ra_timer.t_color);
                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);
+               BE_TIME_STOP(ra_timer.t_color);
+               BE_TIME_START(ra_timer.t_ifg);
+               //be_ifg_check_performance(&chordal_env);
+
+               /* Create the ifg with the selected flavor */
+               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;
+               }
+
+
+#if 0
+               {
+                       be_ifg_t *std = be_ifg_std_new(&chordal_env);
+                       f = be_chordal_open(&chordal_env, "std", "csv");
+                       be_ifg_check_sorted_to_file(std, f);
+                       be_ifg_free(std);
+                       fclose(f);
+               }
+
+               f = be_chordal_open(&chordal_env, "clique", "csv");
+               be_ifg_check_sorted_to_file(chordal_env.ifg, f);
+               fclose(f);
+#endif
+               if (options.vrfy_option != BE_CH_VRFY_OFF)
+                       be_ra_chordal_check(&chordal_env);
+
+//             be_ifg_check_sorted(chordal_env.ifg);
+
+               BE_TIME_STOP(ra_timer.t_ifg);
+               BE_TIME_START(ra_timer.t_copymin);
 
                /* copy minimization */
                co = NULL;
@@ -386,21 +529,32 @@ static void be_ra_chordal_main(const be_irg_t *bi)
                }
 
                dump(BE_CH_DUMP_COPYMIN, irg, chordal_env.cls, "-copymin", dump_ir_block_graph_sched);
-               be_ra_chordal_check(&chordal_env);
+               if (options.vrfy_option != BE_CH_VRFY_OFF)
+                       be_ra_chordal_check(&chordal_env);
+
+               BE_TIME_STOP(ra_timer.t_copymin);
+               BE_TIME_START(ra_timer.t_ssa);
 
                /* ssa destruction */
                be_ssa_destruction(&chordal_env);
                dump(BE_CH_DUMP_SSADESTR, irg, chordal_env.cls, "-ssadestr", dump_ir_block_graph_sched);
-               be_ssa_destruction_check(&chordal_env);
-               be_ra_chordal_check(&chordal_env);
+               if (options.vrfy_option != BE_CH_VRFY_OFF) {
+                       be_ssa_destruction_check(&chordal_env);
+                       be_ra_chordal_check(&chordal_env);
+               }
 
-               copystat_dump(irg);
+               if (options.copymin_method == BE_CH_COPYMIN_STAT)
+                       copystat_dump(irg);
 
                be_ifg_free(chordal_env.ifg);
                pmap_destroy(chordal_env.border_heads);
                bitset_free(chordal_env.ignore_colors);
+
+               BE_TIME_STOP(ra_timer.t_ssa);
        }
 
+       BE_TIME_START(ra_timer.t_epilog);
+
        be_compute_spill_offsets(&chordal_env);
 
        dump(BE_CH_DUMP_LOWER, irg, NULL, "-spilloff", dump_ir_block_graph_sched);
@@ -410,6 +564,13 @@ static void be_ra_chordal_main(const be_irg_t *bi)
 
        obstack_free(&chordal_env.obst, NULL);
        be_free_dominance_frontiers(chordal_env.dom_front);
+
+       BE_TIME_STOP(ra_timer.t_epilog);
+
+       if (main_opts->timing == BE_TIME_ON)
+               return &ra_timer;
+       else
+               return NULL;
 }
 
 const be_ra_t be_ra_chordal_allocator = {