diff options
Diffstat (limited to 'llvm/lib/Analysis/InstructionSimplify.cpp')
| -rw-r--r-- | llvm/lib/Analysis/InstructionSimplify.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index 7d8b668be03..56e7a094976 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -3152,14 +3152,15 @@ static Value *SimplifySelectInst(Value *CondVal, Value *TrueVal, if (isa<UndefValue>(FalseVal)) // select C, X, undef -> X return TrueVal; - if (const auto *ICI = dyn_cast<ICmpInst>(CondVal)) { + const auto *ICI = dyn_cast<ICmpInst>(CondVal); + unsigned BitWidth = TrueVal->getType()->getScalarSizeInBits(); + if (ICI && BitWidth) { ICmpInst::Predicate Pred = ICI->getPredicate(); - APInt MinSignedValue = - APInt::getSignBit(TrueVal->getType()->getScalarSizeInBits()); + APInt MinSignedValue = APInt::getSignBit(BitWidth); Value *X; const APInt *Y; - bool IsBitTest = false; bool TrueWhenUnset; + bool IsBitTest = false; if (ICmpInst::isEquality(Pred) && match(ICI->getOperand(0), m_And(m_Value(X), m_APInt(Y))) && match(ICI->getOperand(1), m_Zero())) { |
