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| author | Craig Topper <craig.topper@gmail.com> | 2016-12-05 05:50:51 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2016-12-05 05:50:51 +0000 |
| commit | db8467ae26835b57cf1f9a494c8d9e91d570e92b (patch) | |
| tree | 76dd1d7dbee050f7c4baa608a49f651f5c6f6b31 /llvm/lib/Target/X86/X86FastISel.cpp | |
| parent | fde4a454efb5b6766b479fa5607945846ac714ef (diff) | |
| download | bcm5719-llvm-db8467ae26835b57cf1f9a494c8d9e91d570e92b.tar.gz bcm5719-llvm-db8467ae26835b57cf1f9a494c8d9e91d570e92b.zip | |
[AVX-512] Teach fast isel to handle 512-bit vector bitcasts.
llvm-svn: 288641
Diffstat (limited to 'llvm/lib/Target/X86/X86FastISel.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86FastISel.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp index 44d918f3786..53e6ab6e359 100644 --- a/llvm/lib/Target/X86/X86FastISel.cpp +++ b/llvm/lib/Target/X86/X86FastISel.cpp @@ -3563,8 +3563,14 @@ X86FastISel::fastSelectInstruction(const Instruction *I) { if (!SrcVT.isSimple() || !DstVT.isSimple()) return false; - if (!SrcVT.is128BitVector() && - !(Subtarget->hasAVX() && SrcVT.is256BitVector())) + MVT SVT = SrcVT.getSimpleVT(); + MVT DVT = DstVT.getSimpleVT(); + + if (!SVT.is128BitVector() && + !(Subtarget->hasAVX() && SVT.is256BitVector()) && + !(Subtarget->hasAVX512() && SVT.is512BitVector() && + (Subtarget->hasBWI() || (SVT.getScalarSizeInBits() >= 32 && + DVT.getScalarSizeInBits() >= 32)))) return false; unsigned Reg = getRegForValue(I->getOperand(0)); |
