removed unnecessary include

[libfirm] / ir / be / becopyopt.c

diff --git a/ir/be/becopyopt.c b/ir/be/becopyopt.c
index 1b2c7e7..eecc976 100644 (file)
--- a/ir/be/becopyopt.c
+++ b/ir/be/becopyopt.c
@@ -420,22 +420,25 @@ static void co_collect_units(ir_node *irn, void *env) {
                        /* Else insert the argument of the phi to the members of this ou */
                        DBG((dbg, LEVEL_1, "\t   Member: %+F\n", arg));
 
-                       /* Check if arg has occurred at a prior position in the arg/list */
-                       arg_pos = 0;
-                       for (o=0; o<unit->node_count; ++o)
-                               if (unit->nodes[o] == arg) {
-                                       arg_pos = o;
-                                       break;
+                       if (! arch_irn_is(co->aenv, arg, ignore)) {
+                               /* Check if arg has occurred at a prior position in the arg/list */
+                               arg_pos = 0;
+                               for (o=1; o<unit->node_count; ++o) {
+                                       if (unit->nodes[o] == arg) {
+                                               arg_pos = o;
+                                               break;
+                                       }
                                }
 
-                       if (!arg_pos) { /* a new argument */
-                               /* insert node, set costs */
-                               unit->nodes[unit->node_count] = arg;
-                               unit->costs[unit->node_count] = co->get_costs(co, irn, arg, i);
-                               unit->node_count++;
-                       } else { /* arg has occured before in same phi */
-                               /* increase costs for existing arg */
-                               unit->costs[arg_pos] += co->get_costs(co, irn, arg, i);
+                               if (!arg_pos) { /* a new argument */
+                                       /* insert node, set costs */
+                                       unit->nodes[unit->node_count] = arg;
+                                       unit->costs[unit->node_count] = co->get_costs(co, irn, arg, i);
+                                       unit->node_count++;
+                               } else { /* arg has occured before in same phi */
+                                       /* increase costs for existing arg */
+                                       unit->costs[arg_pos] += co->get_costs(co, irn, arg, i);
+                               }
                        }
                }
                unit->nodes = xrealloc(unit->nodes, unit->node_count * sizeof(*unit->nodes));