experiment with new emitter style, change assembler syntax of ia32 backend to AT&T
[libfirm] / ir / be / beifg.c
index 5dfd03b..3b3b439 100644 (file)
@@ -6,17 +6,20 @@
  * Copyright (C) 2005 Universitaet Karlsruhe
  * Released under the GPL
  */
-
-#include <stdlib.h>
-
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
+#include <stdlib.h>
+
 #ifdef HAVE_MALLOC_H
 #include <malloc.h>
 #endif
 
+#ifdef __linux__
+#include <malloc.h>
+#endif /* __linux__ */
+
 #ifdef HAVE_ALLOCA_H
 #include <alloca.h>
 #endif
 #include "irnode_t.h"
 #include "irprintf.h"
 #include "irtools.h"
+#include "irbitset.h"
 #include "beifg_t.h"
 #include "beifg_impl.h"
 #include "irphase.h"
 #include "irphase_t.h"
 #include "bechordal.h"
+#include "error.h"
 
 #include "becopystat.h"
 #include "becopyopt.h"
+#include "beirg_t.h"
 
 /** Defines values for the ifg performance test */
 #define BE_CH_PERFORMANCETEST_MIN_NODES (50)
-#define BE_CH_PERFORMANCETEST_COUNT (10)
+#define BE_CH_PERFORMANCETEST_COUNT (500)
 
 typedef struct _coloring_t coloring_t;
 
@@ -54,21 +60,18 @@ struct _coloring_t {
        ir_graph *irg;
 };
 
-size_t (be_ifg_nodes_iter_size)(const void *self)
+size_t (be_ifg_nodes_iter_size)(const be_ifg_t *ifg)
 {
-       const be_ifg_t *ifg = self;
        return ifg->impl->nodes_iter_size;
 }
 
-size_t (be_ifg_neighbours_iter_size)(const void *self)
+size_t (be_ifg_neighbours_iter_size)(const be_ifg_t *ifg)
 {
-       const be_ifg_t *ifg = self;
        return ifg->impl->neighbours_iter_size;
 }
 
-size_t (be_ifg_cliques_iter_size)(const void *self)
+size_t (be_ifg_cliques_iter_size)(const be_ifg_t *ifg)
 {
-       const be_ifg_t *ifg = self;
        return ifg->impl->cliques_iter_size;
 }
 
@@ -110,76 +113,64 @@ void coloring_restore(coloring_t *c)
        irg_walk_graph(c->irg, NULL, restore_irn_color, c);
 }
 
-void (be_ifg_free)(void *self)
+void (be_ifg_free)(be_ifg_t *ifg)
 {
-       be_ifg_t *ifg = self;
-       ifg->impl->free(self);
+       ifg->impl->free(ifg);
 }
 
-int (be_ifg_connected)(const void *self, const ir_node *a, const ir_node *b)
+int (be_ifg_connected)(const be_ifg_t *ifg, const ir_node *a, const ir_node *b)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->connected(self, a, b);
+       return ifg->impl->connected(ifg, a, b);
 }
 
-ir_node *(be_ifg_neighbours_begin)(const void *self, void *iter, const ir_node *irn)
+ir_node *(be_ifg_neighbours_begin)(const be_ifg_t *ifg, void *iter, const ir_node *irn)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->neighbours_begin(self, iter, irn);
+       return ifg->impl->neighbours_begin(ifg, iter, irn);
 }
 
-ir_node *(be_ifg_neighbours_next)(const void *self, void *iter)
+ir_node *(be_ifg_neighbours_next)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->neighbours_next(self, iter);
+       return ifg->impl->neighbours_next(ifg, iter);
 }
 
-void (be_ifg_neighbours_break)(const void *self, void *iter)
+void (be_ifg_neighbours_break)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       ifg->impl->neighbours_break(self, iter);
+       ifg->impl->neighbours_break(ifg, iter);
 }
 
-ir_node *(be_ifg_nodes_begin)(const void *self, void *iter)
+ir_node *(be_ifg_nodes_begin)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->nodes_begin(self, iter);
+       return ifg->impl->nodes_begin(ifg, iter);
 }
 
-ir_node *(be_ifg_nodes_next)(const void *self, void *iter)
+ir_node *(be_ifg_nodes_next)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->nodes_next(self, iter);
+       return ifg->impl->nodes_next(ifg, iter);
 }
 
-void (be_ifg_nodes_break)(const void *self, void *iter)
+void (be_ifg_nodes_break)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       ifg->impl->nodes_break(self, iter);
+       ifg->impl->nodes_break(ifg, iter);
 }
 
-int (be_ifg_cliques_begin)(const void *self, void *iter, ir_node **buf)
+int (be_ifg_cliques_begin)(const be_ifg_t *ifg, void *iter, ir_node **buf)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->cliques_begin(self, iter, buf);
+       return ifg->impl->cliques_begin(ifg, iter, buf);
 }
 
-int (be_ifg_cliques_next)(const void *self, void *iter)
+int (be_ifg_cliques_next)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->cliques_next(self, iter);
+       return ifg->impl->cliques_next(ifg, iter);
 }
 
-void (be_ifg_cliques_break)(const void *self, void *iter)
+void (be_ifg_cliques_break)(const be_ifg_t *ifg, void *iter)
 {
-       const be_ifg_t *ifg = self;
-       ifg->impl->cliques_break(self, iter);
+       ifg->impl->cliques_break(ifg, iter);
 }
 
-int (be_ifg_degree)(const void *self, const ir_node *irn)
+int (be_ifg_degree)(const be_ifg_t *ifg, const ir_node *irn)
 {
-       const be_ifg_t *ifg = self;
-       return ifg->impl->degree(self, irn);
+       return ifg->impl->degree(ifg, irn);
 }
 
 
@@ -265,8 +256,8 @@ static int be_ifg_check_cmp_nodes(const void *a, const void *b)
        const ir_node *node_a = *(ir_node **)a;
        const ir_node *node_b = *(ir_node **)b;
 
-       int nr_a = node_a->node_nr;
-       int nr_b = node_b->node_nr;
+       long nr_a = get_irn_node_nr(node_a);
+       long nr_b = get_irn_node_nr(node_b);
 
        return QSORT_CMP(nr_a, nr_b);
 }
@@ -278,7 +269,6 @@ void be_ifg_check_sorted(const be_ifg_t *ifg)
 
        ir_node *n, *m;
        const int node_count = be_ifg_check_get_node_count(ifg);
-       int neighbours_count = 0;
        int i = 0;
 
        ir_node **all_nodes = xmalloc(node_count * sizeof(all_nodes[0]));
@@ -287,7 +277,7 @@ void be_ifg_check_sorted(const be_ifg_t *ifg)
        {
                if(!node_is_in_irgs_storage(ifg->env->irg, n))
                {
-                       printf ("+%F is in ifg but not in the current irg!",n);
+                       ir_printf("+%F is in ifg but not in the current irg!", n);
                        assert (node_is_in_irgs_storage(ifg->env->irg, n));
                }
 
@@ -330,15 +320,71 @@ void be_ifg_check_sorted(const be_ifg_t *ifg)
 
 }
 
+void be_ifg_check_sorted_to_file(const be_ifg_t *ifg, FILE *f)
+{
+       void *iter1 = be_ifg_nodes_iter_alloca(ifg);
+       void *iter2 = be_ifg_neighbours_iter_alloca(ifg);
+
+       ir_node *n, *m;
+       const int node_count = be_ifg_check_get_node_count(ifg);
+       int i = 0;
+
+       ir_node **all_nodes = xmalloc(node_count * sizeof(all_nodes[0]));
+
+       be_ifg_foreach_node(ifg, iter1, n)
+       {
+               if(!node_is_in_irgs_storage(ifg->env->irg, n))
+               {
+                       ir_fprintf (f,"+%F is in ifg but not in the current irg!",n);
+                       assert (node_is_in_irgs_storage(ifg->env->irg, n));
+               }
+
+               all_nodes[i] = n;
+               i++;
+       }
+
+       qsort(all_nodes, node_count, sizeof(all_nodes[0]), be_ifg_check_cmp_nodes);
+
+       for (i = 0; i < node_count; i++)
+       {
+               ir_node **neighbours = xmalloc(node_count * sizeof(neighbours[0]));
+               int j = 0;
+               int k = 0;
+               int degree = 0;
+
+               degree = be_ifg_degree(ifg, all_nodes[i]);
+
+               be_ifg_foreach_neighbour(ifg, iter2, all_nodes[i], m)
+               {
+                       neighbours[j] = m;
+                       j++;
+               }
+
+               qsort(neighbours, j, sizeof(neighbours[0]), be_ifg_check_cmp_nodes);
+
+               ir_fprintf (f,"%d. %+F's neighbours(%d): ", i+1, all_nodes[i], degree);
+
+               for(k = 0; k < j; k++)
+               {
+                       ir_fprintf (f,"%+F, ", neighbours[k]);
+               }
+
+               ir_fprintf (f,"\n");
+
+               free(neighbours);
+       }
+
+       free(all_nodes);
+
+}
+
 void be_ifg_check_performance(be_chordal_env_t *chordal_env)
 {
+#ifdef WITH_LIBCORE
        int tests = BE_CH_PERFORMANCETEST_COUNT;
        coloring_t coloring;
 
-#ifdef __linux__
-       struct mallinfo minfo;
-       int used_memory = 0;
-#endif /* __linux__ */
+       int used_memory;
 
        int i = 0;
        int rt;
@@ -348,9 +394,8 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
        lc_timer_t *timer = lc_timer_register("getTime","get Time of copy minimization using the ifg");
        unsigned long elapsed_usec = 0;
 
-       if ((int) get_irg_estimated_node_cnt >= BE_CH_PERFORMANCETEST_MIN_NODES)
+       if (get_irg_estimated_node_cnt(chordal_env->irg) >= BE_CH_PERFORMANCETEST_MIN_NODES)
        {
-
                coloring_init(&coloring, chordal_env->irg, chordal_env->birg->main_env->arch_env);
                coloring_save(&coloring);
 
@@ -358,10 +403,8 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
 
                for (i = 0; i<tests; i++) /* performance test with std */
                {
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks;
-#endif /* __linux__ */
+
+                       used_memory = lc_get_heap_used_bytes();
 
                        rt = lc_timer_enter_high_priority();
                        lc_timer_start(timer);
@@ -371,10 +414,7 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                        lc_timer_stop(timer);
                        rt = lc_timer_leave_high_priority();
 
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks - used_memory;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes() - used_memory;
 
                        coloring_restore(&coloring);
 
@@ -402,24 +442,14 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                /* calculating average */
                elapsed_usec = elapsed_usec / tests;
 
-               ir_printf("\nstd:; %+F; ",current_ir_graph);
-#ifdef __linux__
-               ir_printf("%u; ", used_memory);
-#endif /* __linux__ */
-               ir_printf("%u; ", elapsed_usec);
+               ir_printf("\nstd:; %+F; %u; %u ",current_ir_graph, used_memory, elapsed_usec);
 
-               i=0;
-#ifdef __linux__
                used_memory=0;
-#endif /* __linux__ */
                elapsed_usec=0;
 
                for (i = 0; i<tests; i++)  /* performance test with clique */
                {
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes();
 
                        rt = lc_timer_enter_high_priority();
                        lc_timer_start(timer);
@@ -429,10 +459,7 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                        lc_timer_stop(timer);
                        rt = lc_timer_leave_high_priority();
 
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks - used_memory;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes() - used_memory;
 
                        coloring_restore(&coloring);
 
@@ -460,24 +487,14 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                /* calculating average */
                elapsed_usec = elapsed_usec / tests;
 
-               ir_printf("\nclique:; %+F; ",current_ir_graph);
-#ifdef __linux__
-               ir_printf("%u; ", used_memory);
-#endif /* __linux__ */
-               ir_printf("%u; ", elapsed_usec);
+               ir_printf("\nclique:; %+F; %u; %u ",current_ir_graph, used_memory, elapsed_usec);
 
-               i=0;
-#ifdef __linux__
                used_memory=0;
-#endif /* __linux__ */
                elapsed_usec=0;
 
                for (i = 0; i<tests; i++)  /* performance test with list */
                {
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes();
 
                        rt = lc_timer_enter_high_priority();
                        lc_timer_start(timer);
@@ -487,10 +504,7 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                        lc_timer_stop(timer);
                        rt = lc_timer_leave_high_priority();
 
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks - used_memory;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes() - used_memory;
 
                        coloring_restore(&coloring);
 
@@ -518,24 +532,14 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                /* calculating average */
                elapsed_usec = elapsed_usec / tests;
 
-               ir_printf("\nlist:; %+F; ",current_ir_graph);
-#ifdef __linux__
-               ir_printf("%u; ", used_memory);
-#endif /* __linux__ */
-               ir_printf("%u; ", elapsed_usec);
+               ir_printf("\nlist:; %+F; %u; %u ",current_ir_graph, used_memory, elapsed_usec);
 
-               i=0;
-#ifdef __linux__
                used_memory=0;
-#endif /* __linux__ */
                elapsed_usec=0;
 
                for (i = 0; i<tests; i++)  /* performance test with pointer */
                {
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes();
 
                        rt = lc_timer_enter_high_priority();
                        lc_timer_start(timer);
@@ -545,10 +549,7 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                        lc_timer_stop(timer);
                        rt = lc_timer_leave_high_priority();
 
-#ifdef __linux__
-                       minfo = mallinfo();
-                       used_memory = minfo.uordblks - used_memory;
-#endif /* __linux__ */
+                       used_memory = lc_get_heap_used_bytes() - used_memory;
 
                        coloring_restore(&coloring);
 
@@ -576,20 +577,15 @@ void be_ifg_check_performance(be_chordal_env_t *chordal_env)
                /* calculating average */
                elapsed_usec = elapsed_usec / tests;
 
-               ir_printf("\npointer:; %+F; ",current_ir_graph);
-#ifdef __linux__
-               ir_printf("%u; ", used_memory);
-#endif /* __linux__ */
-               ir_printf("%u; ", elapsed_usec);
+               ir_printf("\npointer:; %+F; %u; %u ",current_ir_graph, used_memory, elapsed_usec);
 
                i=0;
-#ifdef __linux__
                used_memory=0;
-#endif /* __linux__ */
                elapsed_usec=0;
        }
 
        chordal_env->ifg = old_if;
+#endif /* WITH_LIBCORE */
 }
 
 void be_ifg_dump_dot(be_ifg_t *ifg, ir_graph *irg, FILE *file, const be_ifg_dump_dot_cb_t *cb, void *self)
@@ -640,3 +636,173 @@ void be_ifg_dump_dot(be_ifg_t *ifg, ir_graph *irg, FILE *file, const be_ifg_dump
        fprintf(file, "}\n");
        bitset_free(nodes);
 }
+
+static void int_comp_rec(be_irg_t *birg, be_ifg_t *ifg, ir_node *n, bitset_t *seen)
+{
+       void    *neigh_it = be_ifg_neighbours_iter_alloca(ifg);
+       ir_node *m;
+
+       be_ifg_foreach_neighbour(ifg, neigh_it, n, m) {
+               if(!bitset_contains_irn(seen, m) && !arch_irn_is(birg->main_env->arch_env, m, ignore)) {
+                       bitset_add_irn(seen, m);
+                       int_comp_rec(birg, ifg, m, seen);
+               }
+       }
+
+}
+
+static int int_component_stat(be_irg_t *birg, be_ifg_t *ifg)
+{
+       int      n_comp    = 0;
+       void     *nodes_it = be_ifg_nodes_iter_alloca(ifg);
+       bitset_t *seen     = bitset_irg_malloc(birg->irg);
+
+       ir_node *n;
+
+       be_ifg_foreach_node(ifg, nodes_it, n) {
+               if (! bitset_contains_irn(seen, n) && ! arch_irn_is(birg->main_env->arch_env, n, ignore)) {
+                       ++n_comp;
+                       bitset_add_irn(seen, n);
+                       int_comp_rec(birg, ifg, n, seen);
+               }
+       }
+
+       free(seen);
+       return n_comp;
+}
+
+void be_ifg_stat(be_irg_t *birg, be_ifg_t *ifg, be_ifg_stat_t *stat)
+{
+       void     *nodes_it = be_ifg_nodes_iter_alloca(ifg);
+       void     *neigh_it = be_ifg_neighbours_iter_alloca(ifg);
+       bitset_t *nodes    = bitset_irg_malloc(birg->irg);
+       ir_node  *n, *m;
+
+       memset(stat, 0, sizeof(stat[0]));
+
+       be_ifg_foreach_node(ifg, nodes_it, n) {
+               stat->n_nodes += 1;
+               be_ifg_foreach_neighbour(ifg, neigh_it, n, m) {
+                       bitset_add_irn(nodes, n);
+                       stat->n_edges += !bitset_contains_irn(nodes, m);
+               }
+       }
+
+       stat->n_comps = int_component_stat(birg, ifg);
+       bitset_free(nodes);
+}
+
+enum {
+       BE_IFG_STD = 1,
+       BE_IFG_FAST = 2,
+       BE_IFG_CLIQUE = 3,
+       BE_IFG_POINTER = 4,
+       BE_IFG_LIST = 5,
+       BE_IFG_CHECK = 6
+};
+
+static int ifg_flavor = BE_IFG_STD;
+
+static const lc_opt_enum_int_items_t ifg_flavor_items[] = {
+       { "std",     BE_IFG_STD     },
+       { "fast",    BE_IFG_FAST    },
+       { "clique",  BE_IFG_CLIQUE  },
+       { "pointer", BE_IFG_POINTER },
+       { "list",    BE_IFG_LIST    },
+       { "check",   BE_IFG_CHECK   },
+       { NULL,      0              }
+};
+
+static lc_opt_enum_int_var_t ifg_flavor_var = {
+       &ifg_flavor, ifg_flavor_items
+};
+
+static const lc_opt_table_entry_t be_ifg_options[] = {
+       LC_OPT_ENT_ENUM_PTR ("ifg", "interference graph flavour", &ifg_flavor_var),
+       { NULL }
+};
+
+void be_init_ifg(void)
+{
+       lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
+       lc_opt_entry_t *ifg_grp = lc_opt_get_grp(be_grp, "ifg");
+
+       lc_opt_add_table(ifg_grp, be_ifg_options);
+}
+
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_ifg);
+
+static FILE *be_ifg_open(const be_chordal_env_t *env, const char *prefix)
+{
+       FILE *result;
+       char buf[1024];
+
+       ir_snprintf(buf, sizeof(buf), "%s%F_%s.log", prefix, env->irg, env->cls->name);
+       result = fopen(buf, "wt");
+       if(result == NULL) {
+               panic("Couldn't open '%s' for writing.", buf);
+       }
+
+       return result;
+}
+
+static void check_ifg_implementations(const be_chordal_env_t *chordal_env)
+{
+       be_ifg_t *ifg;
+       FILE *f;
+
+       f = be_ifg_open(chordal_env, "std");
+       ifg = be_ifg_std_new(chordal_env);
+       be_ifg_check_sorted_to_file(ifg, f);
+       fclose(f);
+       be_ifg_free(ifg);
+
+       f = be_ifg_open(chordal_env, "list");
+       ifg = be_ifg_list_new(chordal_env);
+       be_ifg_check_sorted_to_file(ifg, f);
+       fclose(f);
+       be_ifg_free(ifg);
+
+       f = be_ifg_open(chordal_env, "clique");
+       ifg = be_ifg_clique_new(chordal_env);
+       be_ifg_check_sorted_to_file(ifg, f);
+       fclose(f);
+       be_ifg_free(ifg);
+
+       f = be_ifg_open(chordal_env, "pointer");
+       ifg = be_ifg_pointer_new(chordal_env);
+       be_ifg_check_sorted_to_file(ifg, f);
+       fclose(f);
+       be_ifg_free(ifg);
+};
+
+be_ifg_t *be_create_ifg(const be_chordal_env_t *chordal_env)
+{
+       be_ifg_t *ifg = NULL;
+
+       switch (ifg_flavor) {
+               default:
+                       assert(0);
+                       fprintf(stderr, "no valid ifg flavour selected. falling back to std\n");
+               case BE_IFG_STD:
+               case BE_IFG_FAST:
+                       ifg = be_ifg_std_new(chordal_env);
+                       break;
+               case BE_IFG_CLIQUE:
+                       ifg = be_ifg_clique_new(chordal_env);
+                       break;
+               case BE_IFG_POINTER:
+                       ifg = be_ifg_pointer_new(chordal_env);
+                       break;
+               case BE_IFG_LIST:
+                       ifg = be_ifg_list_new(chordal_env);
+                       break;
+               case BE_IFG_CHECK:
+                       check_ifg_implementations(chordal_env);
+                       /* Build the interference graph. */
+                       ifg = be_ifg_std_new(chordal_env);
+                       break;
+       }
+
+       return ifg;
+}