isCommutedMOVLMask should only look at 128-bit vectors to match isMOVLMask.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153027 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 16bd67e32e9e5cef69cf3d88356b42b16bcbf4fb..d90317f98d69510e38e6cf41a848942d333b1063 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -3712,6 +3712,8 @@ static bool isVPERMILPMask(ArrayRef<int> Mask, EVT VT, bool HasAVX) {
 static bool isCommutedMOVLMask(ArrayRef<int> Mask, EVT VT,
                                bool V2IsSplat = false, bool V2IsUndef = false) {
   unsigned NumOps = VT.getVectorNumElements();
+  if (VT.getSizeInBits() == 256)
+    return false;
   if (NumOps != 2 && NumOps != 4 && NumOps != 8 && NumOps != 16)
     return false;