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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-07-03 12:47:21 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-07-03 12:47:21 +0000 |
| commit | 129b720c18098424eb591af36d0ee020b291fcc4 (patch) | |
| tree | 59b23a4bf51c544e30148ab647ab11fb40de5e20 /llvm/lib/Target | |
| parent | fa6db90164459924a31eb590de0279ba4bf43af8 (diff) | |
| download | bcm5719-llvm-129b720c18098424eb591af36d0ee020b291fcc4.tar.gz bcm5719-llvm-129b720c18098424eb591af36d0ee020b291fcc4.zip | |
[X86][AVX512] Add support for lowering shuffles to VPERMILPS
llvm-svn: 274458
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 6eb190fa10a..9c02303ed11 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -11765,6 +11765,10 @@ static SDValue lowerV16F32VectorShuffle(SDLoc DL, ArrayRef<int> Mask, return DAG.getNode(X86ISD::MOVSLDUP, DL, MVT::v16f32, V1); if (isShuffleEquivalent(V1, V2, RepeatedMask, {1, 1, 3, 3})) return DAG.getNode(X86ISD::MOVSHDUP, DL, MVT::v16f32, V1); + + if (V2.isUndef()) + return DAG.getNode(X86ISD::VPERMILPI, DL, MVT::v16f32, V1, + getV4X86ShuffleImm8ForMask(RepeatedMask, DL, DAG)); } if (SDValue Unpck = |
