diff --git a/lib/Transforms/Utils/SimplifyIndVar.cpp b/lib/Transforms/Utils/SimplifyIndVar.cpp
index 6cb91a154f0..d54c09aa6ae 100644
--- a/lib/Transforms/Utils/SimplifyIndVar.cpp
+++ b/lib/Transforms/Utils/SimplifyIndVar.cpp
@@ -288,14 +288,11 @@ bool SimplifyIndvar::strengthenOverflowingOperation(BinaryOperator *BO,
 
   IntegerType *IT = cast<IntegerType>(IVOperand->getType());
   Value *OtherOperand = nullptr;
-  int OtherOperandIdx = -1;
   if (BO->getOperand(0) == IVOperand) {
     OtherOperand = BO->getOperand(1);
-    OtherOperandIdx = 1;
   } else {
     assert(BO->getOperand(1) == IVOperand && "only other use!");
     OtherOperand = BO->getOperand(0);
-    OtherOperandIdx = 0;
   }
 
   bool Changed = false;