diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 820fb4e7bfe..8caa5c32bcd 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1598,7 +1598,7 @@ static bool MeetsMaxMemopRequirement(std::vector<MVT::ValueType> &MemOps,
   if (VT > LVT)
     VT = LVT;
 
-  unsigned NumMemOps;
+  unsigned NumMemOps = 0;
   while (Size != 0) {
     unsigned VTSize = getSizeInBits(VT) / 8;
     while (VTSize > Size) {