Added insertion of duplicates for operands of phi nodes that interfere

[libfirm] / ir / be / becopyheur.c

diff --git a/ir/be/becopyheur.c b/ir/be/becopyheur.c
index 022fe85..55092fe 100644 (file)
--- a/ir/be/becopyheur.c
+++ b/ir/be/becopyheur.c
@@ -237,7 +237,7 @@ static ir_node *qnode_color_irn(const qnode_t *qn, ir_node *irn, int col, const
                /* first check for a conflicting node which is 'living in' the irns block */
                {
                        ir_node *n;
-                       pset *live_ins = get_live_in(irn_bl);
+                       pset *live_ins = put_live_in(irn_bl, pset_new_ptr_default());
                        for (n = pset_first(live_ins); n; n = pset_next(live_ins))
                                if (arch_irn_has_reg_class(arch_env, n, arch_pos_make_out(0), cls)
             && n != trigger && qnode_get_new_color(qn, n) == col
@@ -247,7 +247,8 @@ static ir_node *qnode_color_irn(const qnode_t *qn, ir_node *irn, int col, const
                                        obstack_ptr_grow(&confl_ob, n);
                                        pset_break(live_ins);
                                        break;
-                               }
+                       }
+            del_pset(live_ins);
                }
 
                /* setup the queue of blocks. */