implemented a function to retrieve estimated costs of an op

[libfirm] / ir / be / bespillbelady.c

diff --git a/ir/be/bespillbelady.c b/ir/be/bespillbelady.c
index b0fb76d..99c5a92 100644 (file)
--- a/ir/be/bespillbelady.c
+++ b/ir/be/bespillbelady.c
@@ -585,24 +585,17 @@ next_value:
 static void remove_copies(belady_env_t *bel) {
        ir_node *irn;
 
-       edges_deactivate(current_ir_graph);
-       edges_activate(current_ir_graph);
        foreach_pset(bel->copies, irn) {
                ir_node *src;
-               const ir_edge_t *edge;
+               const ir_edge_t *edge, *ne;
 
                assert(be_is_Copy(irn));
 
                src = be_get_Copy_op(irn);
-               foreach_out_edge(irn, edge) {
+               foreach_out_edge_safe(irn, edge, ne) {
                        ir_node *user = get_edge_src_irn(edge);
                        int user_pos = get_edge_src_pos(edge);
 
-#if 0
-                       // is this normal?
-                       if(user == NULL)
-                               break;
-#endif
                        set_irn_n(user, user_pos, src);
                }
        }