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-rw-r--r--llvm/lib/Transforms/Scalar/LoopRotation.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopRotation.cpp b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
index b8148916295..1c567fd6655 100644
--- a/llvm/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
@@ -70,7 +70,7 @@ static void RewriteUsesOfClonedInstructions(BasicBlock *OrigHeader,
if (OrigHeaderVal->use_empty())
continue;
- Value *OrigPreHeaderVal = ValueMap[OrigHeaderVal];
+ Value *OrigPreHeaderVal = ValueMap.lookup(OrigHeaderVal);
// The value now exits in two versions: the initial value in the preheader
// and the loop "next" value in the original header.
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