diff --git a/lib/Transforms/Scalar/NewGVN.cpp b/lib/Transforms/Scalar/NewGVN.cpp
index 7a7624f7754..9cf01c6582b 100644
--- a/lib/Transforms/Scalar/NewGVN.cpp
+++ b/lib/Transforms/Scalar/NewGVN.cpp
@@ -2423,8 +2423,7 @@ void NewGVN::addPhiOfOps(PHINode *Op, BasicBlock *BB,
   AllTempInstructions.insert(Op);
   PHIOfOpsPHIs[BB].push_back(Op);
   TempToBlock[Op] = BB;
-  if (ExistingValue)
-    RealToTemp[ExistingValue] = Op;
+  RealToTemp[ExistingValue] = Op;
 }
 
 static bool okayForPHIOfOps(const Instruction *I) {