1 files changed, 2 insertions, 11 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index b8250c266ed..4e3a85a70c6 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -24879,17 +24879,8 @@ static bool matchPermuteVectorShuffle(MVT SrcVT, ArrayRef<int> Mask,
 
   // Narrow the repeated mask for 32-bit element permutes.
   SmallVector<int, 4> WordMask = RepeatedMask;
-  if (MaskScalarSizeInBits == 64) {
-    WordMask.clear();
-    for (int M : RepeatedMask) {
-      if (M == SM_SentinelUndef) {
-        WordMask.append(2, SM_SentinelUndef);
-        continue;
-      }
-      WordMask.push_back((M * 2) + 0);
-      WordMask.push_back((M * 2) + 1);
-    }
-  }
+  if (MaskScalarSizeInBits == 64)
+    scaleShuffleMask(2, RepeatedMask, WordMask);
 
   Shuffle = (FloatDomain ? X86ISD::VPERMILPI : X86ISD::PSHUFD);
   ShuffleVT = (FloatDomain ? MVT::f32 : MVT::i32);