diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 59b0e625baf..f91cf709df5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -2757,7 +2757,7 @@ static bool isVectorReductionOp(const User *I) {
           return false;
 
         const ConstantInt *Val = dyn_cast<ConstantInt>(U->getOperand(1));
-        if (!Val || Val->getZExtValue() != 0)
+        if (!Val || !Val->isZero())
           return false;
 
         ReduxExtracted = true;