diff --git a/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td b/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
--- a/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
@@ -412,7 +412,9 @@
     : LLVM_OneResultOp<"shufflevector", [NoSideEffect]>,
       Arguments<(ins LLVM_Type:$v1, LLVM_Type:$v2, ArrayAttr:$mask)>,
       LLVM_Builder<
-      "$res = builder.CreateShuffleVector($v1, $v2, extractPosition($mask));"> {
+      "SmallVector<unsigned, 4> Position = extractPosition($mask);"
+      "SmallVector<int, 4> Mask(Position.begin(), Position.end());"
+      "$res = builder.CreateShuffleVector($v1, $v2, Mask);"> {
   let builders = [OpBuilder<
     "Builder *b, OperationState &result, Value v1, Value v2, "
     "ArrayAttr mask, ArrayRef<NamedAttribute> attrs = {}">];