diff options
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 6 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 7f72ab17f61..ad58f449478 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -12965,6 +12965,12 @@ static SDValue lowerV64I8VectorShuffle(const SDLoc &DL, ArrayRef<int> Mask, if (Subtarget.hasVBMI()) return lowerVectorShuffleWithPERMV(DL, MVT::v64i8, Mask, V1, V2, DAG); + // Try to create an in-lane repeating shuffle mask and then shuffle the + // the results into the target lanes. + if (SDValue V = lowerShuffleAsRepeatedMaskAndLanePermute( + DL, MVT::v64i8, V1, V2, Mask, Subtarget, DAG)) + return V; + // FIXME: Implement direct support for this type! return splitAndLowerVectorShuffle(DL, MVT::v64i8, V1, V2, Mask, DAG); } diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index de4839432b9..9167c09b43f 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -639,8 +639,7 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, { TTI::SK_Reverse, MVT::v32i16, 1 }, // vpermw { TTI::SK_Reverse, MVT::v16i16, 1 }, // vpermw - { TTI::SK_Reverse, MVT::v64i8, 6 }, // vextracti64x4 + 2*vperm2i128 - // + 2*pshufb + vinserti64x4 + { TTI::SK_Reverse, MVT::v64i8, 2 }, // pshufb + vshufi64x2 { TTI::SK_PermuteSingleSrc, MVT::v32i16, 1 }, // vpermw { TTI::SK_PermuteSingleSrc, MVT::v16i16, 1 }, // vpermw |
