diff --git a/llvm/lib/IR/IRBuilder.cpp b/llvm/lib/IR/IRBuilder.cpp
index 7e76a6c2a055a8..91ca984b755c9c 100644
--- a/llvm/lib/IR/IRBuilder.cpp
+++ b/llvm/lib/IR/IRBuilder.cpp
@@ -1047,9 +1047,7 @@ Value *IRBuilderBase::CreatePreserveArrayAccessIndex(
 
   Value *LastIndexV = getInt32(LastIndex);
   Constant *Zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
-  SmallVector<Value *, 4> IdxList;
-  for (unsigned I = 0; I < Dimension; ++I)
-    IdxList.push_back(Zero);
+  SmallVector<Value *, 4> IdxList(Dimension, Zero);
   IdxList.push_back(LastIndexV);
 
   Type *ResultType =