diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index d49eda24a70..fbbae3877ac 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -1213,7 +1213,7 @@ void ConvergingScheduler::releaseTopNode(SUnit *SU) {
   if (SU->isScheduled)
     return;
 
-  for (SUnit::succ_iterator I = SU->Preds.begin(), E = SU->Preds.end();
+  for (SUnit::pred_iterator I = SU->Preds.begin(), E = SU->Preds.end();
        I != E; ++I) {
     unsigned PredReadyCycle = I->getSUnit()->TopReadyCycle;
     unsigned MinLatency = I->getMinLatency();