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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-05-14 17:36:07 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-05-14 17:36:07 +0000 |
| commit | aa8dffb69bccbe4e41469e0023b7508dd44945f8 (patch) | |
| tree | 8661444945d8ec71d591bd55e4469c62ea3a671c /llvm/lib/Target | |
| parent | 7d186b016a18fd3421015b274e98b2fc7fdebe76 (diff) | |
| download | bcm5719-llvm-aa8dffb69bccbe4e41469e0023b7508dd44945f8.tar.gz bcm5719-llvm-aa8dffb69bccbe4e41469e0023b7508dd44945f8.zip | |
[X86][SSE] Account for cost of extract/insert of v32i8 vector shifts
llvm-svn: 303012
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index bfbd33e5b9d..ba6462a0768 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -251,9 +251,9 @@ int X86TTIImpl::getArithmeticInstrCost( { ISD::SRL, MVT::v16i8, 2 }, // psrlw + pand. { ISD::SRA, MVT::v16i8, 4 }, // psrlw, pand, pxor, psubb. - { ISD::SHL, MVT::v32i8, 4 }, // 2*(psllw + pand). - { ISD::SRL, MVT::v32i8, 4 }, // 2*(psrlw + pand). - { ISD::SRA, MVT::v32i8, 8 }, // 2*(psrlw, pand, pxor, psubb). + { ISD::SHL, MVT::v32i8, 4+2 }, // 2*(psllw + pand) + split. + { ISD::SRL, MVT::v32i8, 4+2 }, // 2*(psrlw + pand) + split. + { ISD::SRA, MVT::v32i8, 8+2 }, // 2*(psrlw, pand, pxor, psubb) + split. { ISD::SDIV, MVT::v16i16, 12 }, // pmulhw sequence { ISD::SDIV, MVT::v8i16, 6 }, // pmulhw sequence |
