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| author | Alexey Bataev <a.bataev@hotmail.com> | 2018-01-09 19:08:22 +0000 |
|---|---|---|
| committer | Alexey Bataev <a.bataev@hotmail.com> | 2018-01-09 19:08:22 +0000 |
| commit | 771ec9f39939545d336209285d91640209b3d8c7 (patch) | |
| tree | d9271530af784091c86ae1974d75aefeccb70611 /llvm/lib | |
| parent | e9c278ccf1e89a5dbed4513950749a315181f11e (diff) | |
| download | bcm5719-llvm-771ec9f39939545d336209285d91640209b3d8c7.tar.gz bcm5719-llvm-771ec9f39939545d336209285d91640209b3d8c7.zip | |
[COST]Fix PR35865: Fix cost model evaluation for shuffle on X86.
Summary:
If the vector type is transformed to non-vector single type, the compile
may crash trying to get vector information about non-vector type.
Reviewers: RKSimon, spatel, mkuper, hfinkel
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D41862
llvm-svn: 322106
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index 223eed3048d..967d67a84bc 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -754,7 +754,8 @@ int X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, // type remains the same. if (Kind == TTI::SK_PermuteSingleSrc && LT.first != 1) { MVT LegalVT = LT.second; - if (LegalVT.getVectorElementType().getSizeInBits() == + if (LegalVT.isVector() && + LegalVT.getVectorElementType().getSizeInBits() == Tp->getVectorElementType()->getPrimitiveSizeInBits() && LegalVT.getVectorNumElements() < Tp->getVectorNumElements()) { |
