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-rw-r--r--llvm/lib/CodeGen/LoopTraversal.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/LoopTraversal.cpp b/llvm/lib/CodeGen/LoopTraversal.cpp
index 9490dfc40a82..0d400253c652 100644
--- a/llvm/lib/CodeGen/LoopTraversal.cpp
+++ b/llvm/lib/CodeGen/LoopTraversal.cpp
@@ -39,8 +39,7 @@ LoopTraversal::TraversalOrder LoopTraversal::traverse(MachineFunction &MF) {
bool Primary = true;
Workqueue.push_back(MBB);
while (!Workqueue.empty()) {
- MachineBasicBlock *ActiveMBB = &*Workqueue.back();
- Workqueue.pop_back();
+ MachineBasicBlock *ActiveMBB = Workqueue.pop_back_val();
bool Done = isBlockDone(ActiveMBB);
MBBTraversalOrder.push_back(TraversedMBBInfo(ActiveMBB, Primary, Done));
for (MachineBasicBlock *Succ : ActiveMBB->successors()) {