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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-01-04 14:01:33 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-01-04 14:01:33 +0000 |
| commit | bb895f3e9c49d14d637bdf14358e062160803655 (patch) | |
| tree | 792b7f9c380c46ad195dff5b4cb46a0f0b56c2c0 /llvm/lib/Target/X86/X86TargetTransformInfo.cpp | |
| parent | c08b90d08fcf4ca5df8093815863044463de9257 (diff) | |
| download | bcm5719-llvm-bb895f3e9c49d14d637bdf14358e062160803655.tar.gz bcm5719-llvm-bb895f3e9c49d14d637bdf14358e062160803655.zip | |
[CostModel][X86] Updated vXi8 and vXi16 Reverse/Alternate shuffle costs
Actual codegen is much better than the extract+insert patterns that was assumed.
llvm-svn: 290962
Diffstat (limited to 'llvm/lib/Target/X86/X86TargetTransformInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index 4711baba603..d7792e296a5 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -645,7 +645,8 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, { TTI::SK_Reverse, MVT::v16i16, 2 }, // vperm2i128 + pshufb { TTI::SK_Reverse, MVT::v32i8, 2 }, // vperm2i128 + pshufb - { TTI::SK_Alternate, MVT::v16i16, 1 } // vpblendw + { TTI::SK_Alternate, MVT::v16i16, 1 }, // vpblendw + { TTI::SK_Alternate, MVT::v32i8, 1 } // vpblendvb }; if (ST->hasAVX2()) @@ -666,11 +667,8 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, { TTI::SK_Alternate, MVT::v4f64, 1 }, // vblendpd { TTI::SK_Alternate, MVT::v8i32, 1 }, // vblendps { TTI::SK_Alternate, MVT::v8f32, 1 }, // vblendps - - { TTI::SK_Alternate, MVT::v16i16, 5 }, // 2*vextractf128 + 2*vpblendw - // + vinsertf128 - { TTI::SK_Alternate, MVT::v32i8, 9 } // 2*vextractf128 + 4*vpshufb - // + 2*vpor + vinsertf128 + { TTI::SK_Alternate, MVT::v16i16, 3 }, // vpand + vpandn + vpor + { TTI::SK_Alternate, MVT::v32i8, 3 } // vpand + vpandn + vpor }; if (ST->hasAVX()) @@ -683,7 +681,7 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, { TTI::SK_Alternate, MVT::v4i32, 1 }, // pblendw { TTI::SK_Alternate, MVT::v4f32, 1 }, // blendps { TTI::SK_Alternate, MVT::v8i16, 1 }, // pblendw - { TTI::SK_Alternate, MVT::v16i8, 3 } // 2*pshufb + por + { TTI::SK_Alternate, MVT::v16i8, 1 } // pblendvb }; if (ST->hasSSE41()) @@ -713,8 +711,8 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, { TTI::SK_Alternate, MVT::v2i64, 1 }, // movsd { TTI::SK_Alternate, MVT::v2f64, 1 }, // movsd { TTI::SK_Alternate, MVT::v4i32, 2 }, // 2*shufps - { TTI::SK_Alternate, MVT::v8i16, 8 }, // 4*pextrw + 4*pinsrw. - { TTI::SK_Alternate, MVT::v16i8, 48 }, // 8*(pinsrw + pextrw + and +movb + movzb + or) + { TTI::SK_Alternate, MVT::v8i16, 3 }, // pand + pandn + por + { TTI::SK_Alternate, MVT::v16i8, 3 } // pand + pandn + por }; if (ST->hasSSE2()) @@ -722,8 +720,8 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, return LT.first * Entry->Cost; static const CostTblEntry SSE1ShuffleTbl[] = { - { TTI::SK_Reverse, MVT::v4f32, 1 }, // shufps - { TTI::SK_Alternate, MVT::v4f32, 2 } // 2*shufps + { TTI::SK_Reverse, MVT::v4f32, 1 }, // shufps + { TTI::SK_Alternate, MVT::v4f32, 2 } // 2*shufps }; if (ST->hasSSE1()) |
