Let dfs() discover only memory nodes

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index 3be7fda..2a9ade8 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -761,9 +761,10 @@ static void melt_copykeeps(constraint_env_t *cenv) {
                                ir_nodeset_insert(&entry->copies, new_ck);
 
                                /* find scheduling point */
+                               sched_pt = ref_mode_T;
                                do {
                                        /* just walk along the schedule until a non-Keep/CopyKeep node is found */
-                                       sched_pt = sched_next(ref_mode_T);
+                                       sched_pt = sched_next(sched_pt);
                                } while (be_is_Keep(sched_pt) || be_is_CopyKeep(sched_pt));
 
                                sched_add_before(sched_pt, new_ck);