diff --git a/lib/Analysis/LoopAccessAnalysis.cpp b/lib/Analysis/LoopAccessAnalysis.cpp
index efc3bc950b3..3b23b3314b9 100644
--- a/lib/Analysis/LoopAccessAnalysis.cpp
+++ b/lib/Analysis/LoopAccessAnalysis.cpp
@@ -1143,7 +1143,8 @@ bool llvm::sortLoadAccesses(ArrayRef<Value *> VL, const DataLayout &DL,
     // The pointers may not have a constant offset from each other, or SCEV
     // may just not be smart enough to figure out they do. Regardless,
     // there's nothing we can do.
-    if (!Diff || Diff->getAPInt().abs().getSExtValue() > (VL.size() - 1) * Size)
+    if (!Diff || Diff->getAPInt().abs().getSExtValue() >
+                     static_cast<int64_t>((VL.size() - 1) * Size))
       return false;
 
     OffValPairs.emplace_back(Diff->getAPInt().getSExtValue(), Val);