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-rw-r--r--lib/Transforms/Scalar/InstructionCombining.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index ce5f2397d2..d7f5ccf788 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -550,6 +550,11 @@ static inline Value *dyn_castNegVal(Value *V) {
// Constants can be considered to be negated values if they can be folded.
if (ConstantInt *C = dyn_cast<ConstantInt>(V))
return ConstantExpr::getNeg(C);
+
+ if (ConstantVector *C = dyn_cast<ConstantVector>(V))
+ if (C->getType()->getElementType()->isInteger())
+ return ConstantExpr::getNeg(C);
+
return 0;
}