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Fix MSan crash after 1977c53b

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This commit is contained in:
Juneyoung Lee 2021-05-02 13:44:43 +09:00
parent 0086e8ade4
commit 33fda542f4
1 changed files with 2 additions and 1 deletions
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3
lib/Analysis/OverflowInstAnalysis.cpp
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@ -38,7 +38,8 @@ bool llvm::isCheckForZeroAndMulWithOverflow(Value *Op0, Value *Op1, bool IsAnd,
return false;
II = dyn_cast<IntrinsicInst>(Extract->getAggregateOperand());
if (!match(II, m_CombineOr(m_Intrinsic<Intrinsic::umul_with_overflow>(),
if (!II ||
!match(II, m_CombineOr(m_Intrinsic<Intrinsic::umul_with_overflow>(),
m_Intrinsic<Intrinsic::smul_with_overflow>())))
return false;