641   if (isa<PoisonValue>(Op1))  in simplifyAddInst()
794   if (isa<PoisonValue>(Op0) || isa<PoisonValue>(Op1))  in simplifySubInst()
795     return PoisonValue::get(Op0->getType());  in simplifySubInst()
936   if (isa<PoisonValue>(Op1))  in simplifyMulInst()
1088   if (Q.isUndefValue(Op1) || isa<PoisonValue>(Op1))  in simplifyDivRem()
1089     return PoisonValue::get(Ty);  in simplifyDivRem()
1095     return PoisonValue::get(Ty);  in simplifyDivRem()
1106         return PoisonValue::get(Ty);  in simplifyDivRem()
1112   if (isa<PoisonValue>(Op0))  in simplifyDivRem()
1137     return PoisonValue::get(Ty);  in simplifyDivRem()
1202         return PoisonValue::get(Op0->getType());  in simplifyDiv()
1354   if (isa<PoisonValue>(Op0))  in simplifyShift()
1371     return PoisonValue::get(Op0->getType());  in simplifyShift()
1389     return PoisonValue::get(Op0->getType());  in simplifyShift()
1409       return PoisonValue::get(Op0->getType());  in simplifyShift()
2077   if (isa<PoisonValue>(Op1))  in simplifyAndInst()
2352   if (isa<PoisonValue>(Op1))  in simplifyOrInst()
2536   if (isa<PoisonValue>(Op1))  in simplifyXorInst()
3770   if (isa<PoisonValue>(RHS))  in simplifyICmpInst()
3771     return PoisonValue::get(ITy);  in simplifyICmpInst()
4093   if (isa<PoisonValue>(LHS) || isa<PoisonValue>(RHS))  in simplifyFCmpInst()
4094     return PoisonValue::get(RetTy);  in simplifyFCmpInst()
4804     if (isa<PoisonValue>(CondC))  in simplifySelectInst()
4805       return PoisonValue::get(TrueVal->getType());  in simplifySelectInst()
4914   if (isa<PoisonValue>(TrueVal) ||  in simplifySelectInst()
4919   if (isa<PoisonValue>(FalseVal) ||  in simplifySelectInst()
4942       else if (isa<PoisonValue>(TEltC) ||  in simplifySelectInst()
4945       else if (isa<PoisonValue>(FEltC) ||  in simplifySelectInst()
5011   if (isa<PoisonValue>(Ptr) ||  in simplifyGEPInst()
5012       any_of(Indices, [](const auto *V) { return isa<PoisonValue>(V); }))  in simplifyGEPInst()
5013     return PoisonValue::get(GEPTy);  in simplifyGEPInst()
5129   if (isa<PoisonValue>(Val) ||  in simplifyInsertValueInst()
5139       if (isa<PoisonValue>(Agg) ||  in simplifyInsertValueInst()
5171       return PoisonValue::get(Vec->getType());  in simplifyInsertElementInst()
5176     return PoisonValue::get(Vec->getType());  in simplifyInsertElementInst()
5180   if (isa<PoisonValue>(Val) ||  in simplifyInsertElementInst()
5239     return PoisonValue::get(VecVTy->getElementType());  in simplifyExtractElementInst()
5247       return PoisonValue::get(VecVTy->getElementType());  in simplifyExtractElementInst()
5291     if (isa<PoisonValue>(Incoming)) {  in simplifyPHINode()
5309                          : PoisonValue::get(PN->getType());  in simplifyPHINode()
5421     return PoisonValue::get(RetTy);  in simplifyShuffleVectorInst()
5446       Op0 = PoisonValue::get(InVecTy);  in simplifyShuffleVectorInst()
5448       Op1 = PoisonValue::get(InVecTy);  in simplifyShuffleVectorInst()
5490           VecC[i] = PoisonValue::get(C->getType());  in simplifyShuffleVectorInst()
5576       if (EltC && isa<PoisonValue>(EltC))  in propagateNaN()
5616     return PoisonValue::get(Ops[0]->getType());  in simplifyFPOp()
5627       return PoisonValue::get(V->getType());  in simplifyFPOp()
5629       return PoisonValue::get(V->getType());  in simplifyFPOp()
5921       return PoisonValue::get(Op1->getType());  in simplifyFDivInst()
6198   if (isa<PoisonValue>(Op0) || isa<PoisonValue>(Op1))  in simplifyLdexp()
6458     if (isa<PoisonValue>(Op0) || isa<PoisonValue>(Op1))  in simplifyBinaryIntrinsic()
6459       return PoisonValue::get(Op0->getType());  in simplifyBinaryIntrinsic()
6666     if (isa<PoisonValue>(Op0))  in simplifyBinaryIntrinsic()
6667       return PoisonValue::get(ReturnType);  in simplifyBinaryIntrinsic()
6982     return PoisonValue::get(Call->getType());  in simplifyCall()
7206   return Result == I ? PoisonValue::get(I->getType()) : Result;  in simplifyInstruction()