From a1b8e2c7257fb635a89b39274789e120ff3c85ba Mon Sep 17 00:00:00 2001 From: Simon Pilgrim Date: Sat, 7 Jan 2017 15:37:50 +0000 Subject: [X86][AVX512] Use lowerShuffleAsRepeatedMaskAndLanePermute for non-VBMI v64i8 shuffles (PR31470) llvm-svn: 291347 --- llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'llvm/lib/Target/X86/X86TargetTransformInfo.cpp') 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 -- cgit v1.2.3