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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-07-06 22:35:19 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-07-06 22:35:19 +0000 |
| commit | 8fbf1c1f4a6ffe8f070b23f41cfa2df668f4913a (patch) | |
| tree | 8b7db1290866506ae6b9f0cd789d7278f907b285 /llvm/lib/Target/X86/X86TargetTransformInfo.cpp | |
| parent | 86bc91508dca4cc5d9cd4bf57016fd8a4d886ccf (diff) | |
| download | bcm5719-llvm-8fbf1c1f4a6ffe8f070b23f41cfa2df668f4913a.tar.gz bcm5719-llvm-8fbf1c1f4a6ffe8f070b23f41cfa2df668f4913a.zip | |
[X86][SSE] Vectorized i64 uniform constant SRA shifts
This patch adds vectorization support for uniform constant i64 arithmetic shift right operators.
Differential Revision: http://reviews.llvm.org/D9645
llvm-svn: 241514
Diffstat (limited to 'llvm/lib/Target/X86/X86TargetTransformInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index 0c82a700952..a541035f13d 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -117,6 +117,8 @@ unsigned X86TTIImpl::getArithmeticInstrCost( static const CostTblEntry<MVT::SimpleValueType> AVX2UniformConstCostTable[] = { + { ISD::SRA, MVT::v4i64, 4 }, // 2 x psrad + shuffle. + { ISD::SDIV, MVT::v16i16, 6 }, // vpmulhw sequence { ISD::UDIV, MVT::v16i16, 6 }, // vpmulhuw sequence { ISD::SDIV, MVT::v8i32, 15 }, // vpmuldq sequence @@ -211,6 +213,7 @@ unsigned X86TTIImpl::getArithmeticInstrCost( { ISD::SRA, MVT::v16i8, 4 }, // psrlw, pand, pxor, psubb. { ISD::SRA, MVT::v8i16, 1 }, // psraw. { ISD::SRA, MVT::v4i32, 1 }, // psrad. + { ISD::SRA, MVT::v2i64, 4 }, // 2 x psrad + shuffle. { ISD::SDIV, MVT::v8i16, 6 }, // pmulhw sequence { ISD::UDIV, MVT::v8i16, 6 }, // pmulhuw sequence |
