diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index a5eccaeef16..0ee6e0c677b 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -7568,7 +7568,6 @@ bool DAGCombiner::MergeConsecutiveStores(StoreSDNode* St) {
 
   // Store the constants into memory as one consecutive store.
   if (!IsLoadSrc) {
-    unsigned LastConst = 0;
     unsigned LastLegalType = 0;
     unsigned LastLegalVectorType = 0;
     bool NonZero = false;
@@ -7585,9 +7584,6 @@ bool DAGCombiner::MergeConsecutiveStores(StoreSDNode* St) {
         break;
       }
 
-      // Mark this index as the largest legal constant.
-      LastConst = i;
-
       // Find a legal type for the constant store.
       unsigned StoreBW = (i+1) * ElementSizeBytes * 8;
       EVT StoreTy = EVT::getIntegerVT(*DAG.getContext(), StoreBW);