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author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-07-03 18:27:37 +0000 |
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committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-07-03 18:27:37 +0000 |
commit | a0d73835b204432b4b5c7e1dda272d13f81b091d (patch) | |
tree | 621a6347f78d57c35e681a1adfe8c47dbea4947b /llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp | |
parent | 5080e7f56cc01b16351a1d5524caec2e84f32efc (diff) | |
download | llvm-a0d73835b204432b4b5c7e1dda272d13f81b091d.zip llvm-a0d73835b204432b4b5c7e1dda272d13f81b091d.tar.gz llvm-a0d73835b204432b4b5c7e1dda272d13f81b091d.tar.bz2 |
[X86][AVX512] Add support for 512-bit shuffle decoding of VPERMPD/VPERMQ
llvm-svn: 274468
Diffstat (limited to 'llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp')
-rw-r--r-- | llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp b/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp index 899080a..713595d 100644 --- a/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp +++ b/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp @@ -382,12 +382,14 @@ void DecodeVPPERMMask(ArrayRef<uint64_t> RawMask, } } - /// DecodeVPERMMask - this decodes the shuffle masks for VPERMQ/VPERMPD. -/// No VT provided since it only works on 256-bit, 4 element vectors. -void DecodeVPERMMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) { - for (unsigned i = 0; i != 4; ++i) { - ShuffleMask.push_back((Imm >> (2 * i)) & 3); - } +/// DecodeVPERMMask - this decodes the shuffle masks for VPERMQ/VPERMPD. +void DecodeVPERMMask(MVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask) { + assert((VT.is256BitVector() || VT.is512BitVector()) && + (VT.getScalarSizeInBits() == 64) && "Unexpected vector value type"); + unsigned NumElts = VT.getVectorNumElements(); + for (unsigned l = 0; l != NumElts; l += 4) + for (unsigned i = 0; i != 4; ++i) + ShuffleMask.push_back(l + ((Imm >> (2 * i)) & 3)); } void DecodeZeroExtendMask(MVT SrcScalarVT, MVT DstVT, SmallVectorImpl<int> &Mask) { |