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| author | Craig Topper <craig.topper@gmail.com> | 2017-01-12 06:49:12 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2017-01-12 06:49:12 +0000 |
| commit | 24c3a2395f5a3899bf8c8582388b51a589f9edaa (patch) | |
| tree | 867ea2a30437f8a445bfe5b2e9213b4a10884629 /llvm/lib/Target | |
| parent | 69ab67b27911c9036e5cdd1355ba4755561cdf09 (diff) | |
| download | bcm5719-llvm-24c3a2395f5a3899bf8c8582388b51a589f9edaa.tar.gz bcm5719-llvm-24c3a2395f5a3899bf8c8582388b51a589f9edaa.zip | |
[AVX-512] Improve lowering of zero_extend of v4i1 to v4i32 and v2i1 to v2i64 with VLX, but no DQ or BW support.
llvm-svn: 291747
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 5be6f8c4866..05057dabefd 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -15295,13 +15295,13 @@ static SDValue LowerZERO_EXTEND_AVX512(SDValue Op, MVT InVT = In.getSimpleValueType(); SDLoc DL(Op); unsigned NumElts = VT.getVectorNumElements(); - if (NumElts != 8 && NumElts != 16 && !Subtarget.hasBWI()) - return SDValue(); - if (VT.is512BitVector() && InVT.getVectorElementType() != MVT::i1) + if (VT.is512BitVector() && InVT.getVectorElementType() != MVT::i1 && + (NumElts == 8 || NumElts == 16 || Subtarget.hasBWI())) return DAG.getNode(X86ISD::VZEXT, DL, VT, In); - assert(InVT.getVectorElementType() == MVT::i1); + if (InVT.getVectorElementType() != MVT::i1) + return SDValue(); // Extend VT if the target is 256 or 128bit vector and VLX is not supported. MVT ExtVT = VT; |
