From c0981da47d5696fe36474fcf86b4ce03ae3ff818 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 19 Nov 2021 21:06:13 +0100
Subject: Vendor import of llvm-project main
 llvmorg-14-init-10186-gff7f2cfa959b.

---
 llvm/lib/CodeGen/LoopTraversal.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'llvm/lib/CodeGen/LoopTraversal.cpp')

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()) {
-- 
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