nsz Git - libfirm/blob - ir/be/bephiopt.c

   1 /**
   2  * @author Daniel Grund
   3  * @date 04.01.2005
   4  */
   5
   6 #include "pset.h"
   7 #include "irgraph.h"
   8 #include "irnode.h"
   9 #include "irgwalk.h"
  10
  11 #include "domtree.h"
  12 #include "bephiopt.h"
  13 #include "bephicongr_t.h"
  14 #include "bephicoal_t.h"
  15 #include "phistat.h"
  16
  17 #define CUMULATIVE_FILE "~/all.phistat"
  18
  19 static void phi_node_walker(ir_node *node, void *env) {
  20         if (is_Phi(node) && mode_is_datab(get_irn_mode(node)))
  21                 pset_insert_ptr((pset *)env, node);
  22 }
  23
  24
  25 void be_phi_opt(ir_graph* irg) {
  26         dominfo_t *dominfo;
  27         pset *all_phi_nodes, *all_phi_classes;
  28         char buf[1024];
  29
  30         /* get all phi nodes */
  31         printf("-----------------------> Collecting phi nodes <-----------------------\n");
  32         all_phi_nodes = pset_new_ptr(64);
  33         irg_walk_graph(irg, phi_node_walker, NULL, all_phi_nodes);
  34
  35         /* get all phi congruence classes */
  36         printf("-----------------------> Collecting phi classes <-----------------------\n");
  37         all_phi_classes = be_phi_congr_classes(all_phi_nodes);
  38
  39         /* do some statistics */
  40         printf("-----------------------> Collecting phi stats <-----------------------\n");
  41         phi_stat_reset();
  42         phi_stat_collect(irg, all_phi_nodes, all_phi_classes);
  43         snprintf(buf, sizeof(buf), "%s.phistat", get_entity_name(get_irg_entity(irg)));
  44         //phi_stat_dump_pretty(buf);
  45         phi_stat_dump(buf, CUMULATIVE_FILE);
  46
  47         /* try to coalesce the colors of each phi class */
  48         printf("-----------------------> Building domtree <-----------------------\n");
  49         dominfo = domtree_create(irg);
  50         printf("-----------------------> Coalescing <-----------------------\n");
  51         be_phi_coalesce_locals(all_phi_classes, dominfo);
  52         printf("-----------------------> Destroying domtree <-----------------------\n");
  53         domtree_free(dominfo);
  54 }
  55
  56
  57 void be_phi_opt_init(void) {
  58         be_phi_congr_class_init();
  59         be_phi_coal_init();
  60 }