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 "irnode.h"
   8 #include "irgwalk.h"
   9
  10 #include "bephiopt.h"
  11 #include "bephicongr_t.h"
  12 #include "bephicoal_t.h"
  13
  14 pset *all_phi_nodes = NULL;
  15
  16
  17 static void phi_node_walker(ir_node *node, void *env) {
  18         if (is_Phi(node) && mode_is_datab(get_irn_mode(node)))
  19                 pset_insert_ptr(all_phi_nodes, node);
  20 }
  21
  22
  23 void be_phi_opt(ir_graph* irg) {
  24         all_phi_nodes = pset_new_ptr(64);
  25         irg_walk_graph(irg, phi_node_walker, NULL, NULL);
  26
  27         be_phi_congr_classes(all_phi_nodes);
  28         be_phi_coalesce_locals(all_phi_classes);
  29 }
  30
  31
  32 void be_phi_opt_init(void) {
  33         be_phi_congr_class_init();
  34         be_phi_coal_init();
  35 }