diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 20f89ab..667e1a0 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -4202,10 +4202,7 @@
   LLT DstTy = MRI.getType(DstReg);
   LLT IdxTy = LLT::scalar(32);
 
-  const Constant *ShufMask = MI.getOperand(3).getShuffleMask();
-
-  SmallVector<int, 32> Mask;
-  ShuffleVectorInst::getShuffleMask(ShufMask, Mask);
+  ArrayRef<int> Mask = MI.getOperand(3).getShuffleMask();
 
   if (DstTy.isScalar()) {
     if (Src0Ty.isVector())