636   if (isa<PoisonValue>(Op1))  in simplifyAddInst()
753   if (isa<PoisonValue>(Op0) || isa<PoisonValue>(Op1))  in simplifySubInst()
754     return PoisonValue::get(Op0->getType());  in simplifySubInst()
891   if (isa<PoisonValue>(Op1))  in simplifyMulInst()
958   if (Q.isUndefValue(Op1) || isa<PoisonValue>(Op1))  in simplifyDivRem()
959     return PoisonValue::get(Ty);  in simplifyDivRem()
965     return PoisonValue::get(Ty);  in simplifyDivRem()
976         return PoisonValue::get(Ty);  in simplifyDivRem()
982   if (isa<PoisonValue>(Op0))  in simplifyDivRem()
1282   if (isa<PoisonValue>(Op0))  in simplifyShift()
1299     return PoisonValue::get(Op0->getType());  in simplifyShift()
1317     return PoisonValue::get(Op0->getType());  in simplifyShift()
1337       return PoisonValue::get(Op0->getType());  in simplifyShift()
2050   if (isa<PoisonValue>(Op1))  in simplifyAndInst()
2329   if (isa<PoisonValue>(Op1))  in simplifyOrInst()
2486   if (isa<PoisonValue>(Op1))  in simplifyXorInst()
3603   if (isa<PoisonValue>(RHS))  in simplifyICmpInst()
3604     return PoisonValue::get(ITy);  in simplifyICmpInst()
3920   if (isa<PoisonValue>(LHS) || isa<PoisonValue>(RHS))  in simplifyFCmpInst()
3921     return PoisonValue::get(RetTy);  in simplifyFCmpInst()
4407     if (isa<PoisonValue>(CondC))  in simplifySelectInst()
4408       return PoisonValue::get(TrueVal->getType());  in simplifySelectInst()
4455   if (isa<PoisonValue>(TrueVal) ||  in simplifySelectInst()
4461   if (isa<PoisonValue>(FalseVal) ||  in simplifySelectInst()
4485       else if (isa<PoisonValue>(TEltC) ||  in simplifySelectInst()
4488       else if (isa<PoisonValue>(FEltC) ||  in simplifySelectInst()
4558   if (isa<PoisonValue>(Ptr) ||  in simplifyGEPInst()
4559       any_of(Indices, [](const auto *V) { return isa<PoisonValue>(V); }))  in simplifyGEPInst()
4560     return PoisonValue::get(GEPTy);  in simplifyGEPInst()
4564     return InBounds ? PoisonValue::get(GEPTy) : UndefValue::get(GEPTy);  in simplifyGEPInst()
4713       return PoisonValue::get(Vec->getType());  in simplifyInsertElementInst()
4718     return PoisonValue::get(Vec->getType());  in simplifyInsertElementInst()
4722   if (isa<PoisonValue>(Val) ||  in simplifyInsertElementInst()
4781     return PoisonValue::get(VecVTy->getElementType());  in simplifyExtractElementInst()
4789       return PoisonValue::get(VecVTy->getElementType());  in simplifyExtractElementInst()
4969       Op0 = PoisonValue::get(InVecTy);  in simplifyShuffleVectorInst()
4971       Op1 = PoisonValue::get(InVecTy);  in simplifyShuffleVectorInst()
5108     return PoisonValue::get(Ops[0]->getType());  in simplifyFPOp()
5119       return PoisonValue::get(V->getType());  in simplifyFPOp()
5121       return PoisonValue::get(V->getType());  in simplifyFPOp()
6231     return PoisonValue::get(Call->getType());  in simplifyCall()