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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-07-18 20:06:30 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-07-18 20:06:30 +0000 |
| commit | 59764dccfb1b764539eb806f0b9b06b86e735ca4 (patch) | |
| tree | 2f9d101922edf661648428aefdce23fe780b44b1 /llvm/lib/Target/X86/X86TargetTransformInfo.cpp | |
| parent | c9436ad6593a712f6544caf75fdd530cd06e58ac (diff) | |
| download | bcm5719-llvm-59764dccfb1b764539eb806f0b9b06b86e735ca4.tar.gz bcm5719-llvm-59764dccfb1b764539eb806f0b9b06b86e735ca4.zip | |
[X86][SSE] Updated SHL/LSHR i64 vectorization costs.
This was missed in D8416.
llvm-svn: 242621
Diffstat (limited to 'llvm/lib/Target/X86/X86TargetTransformInfo.cpp')
| -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 7df72609184..7cda54d6b00 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -259,13 +259,13 @@ unsigned X86TTIImpl::getArithmeticInstrCost( { ISD::SHL, MVT::v16i8, 26 }, // cmpgtb sequence. { ISD::SHL, MVT::v8i16, 32 }, // cmpgtb sequence. { ISD::SHL, MVT::v4i32, 2*5 }, // We optimized this using mul. - { ISD::SHL, MVT::v2i64, 2*10 }, // Scalarized. - { ISD::SHL, MVT::v4i64, 4*10 }, // Scalarized. + { ISD::SHL, MVT::v2i64, 4 }, // splat+shuffle sequence. + { ISD::SHL, MVT::v4i64, 8 }, // splat+shuffle sequence. { ISD::SRL, MVT::v16i8, 26 }, // cmpgtb sequence. { ISD::SRL, MVT::v8i16, 32 }, // cmpgtb sequence. { ISD::SRL, MVT::v4i32, 16 }, // Shift each lane + blend. - { ISD::SRL, MVT::v2i64, 2*10 }, // Scalarized. + { ISD::SRL, MVT::v2i64, 4 }, // splat+shuffle sequence. { ISD::SRA, MVT::v16i8, 54 }, // unpacked cmpgtb sequence. { ISD::SRA, MVT::v8i16, 32 }, // cmpgtb sequence. |
