diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index b8c786487a6..5df5a21f752 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -11511,6 +11511,11 @@ static SDValue lowerV8I16VectorShuffle(const SDLoc &DL, ArrayRef<int> Mask, lowerVectorShuffleWithUNPCK(DL, MVT::v8i16, Mask, V1, V2, DAG)) return V; + // Use dedicated pack instructions for masks that match their pattern. + if (SDValue V = lowerVectorShuffleWithPACK(DL, MVT::v8i16, Mask, V1, V2, DAG, + Subtarget)) + return V; + // Try to use byte rotation instructions. if (SDValue Rotate = lowerVectorShuffleAsByteRotate( DL, MVT::v8i16, V1, V2, Mask, Subtarget, DAG)) |
