352   if (isa<PoisonValue>(V))  in ConstantFoldCastInstruction()
353     return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
454         return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
539       if (isa<PoisonValue>(Cond)) {  in ConstantFoldSelectInstruction()
540         V = PoisonValue::get(V1Element->getType());  in ConstantFoldSelectInstruction()
557   if (isa<PoisonValue>(Cond))  in ConstantFoldSelectInstruction()
558     return PoisonValue::get(V1->getType());  in ConstantFoldSelectInstruction()
567   if (isa<PoisonValue>(V1))  in ConstantFoldSelectInstruction()
569   if (isa<PoisonValue>(V2))  in ConstantFoldSelectInstruction()
575     if (isa<PoisonValue>(C))  in ConstantFoldSelectInstruction()
616   if (isa<PoisonValue>(Val) || isa<UndefValue>(Idx))  in ConstantFoldExtractElementInstruction()
617     return PoisonValue::get(ValVTy->getElementType());  in ConstantFoldExtractElementInstruction()
630       return PoisonValue::get(ValFVTy->getElementType());  in ConstantFoldExtractElementInstruction()
678     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
697     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
890   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldBinaryInstruction()
891     return PoisonValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
932         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
943         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
953         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
962         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
972         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
1025         return PoisonValue::get(CI2->getType());              // X / 0 == poison  in ConstantFoldBinaryInstruction()
1032         return PoisonValue::get(CI2->getType());              // X % 0 == poison  in ConstantFoldBinaryInstruction()
1146           return PoisonValue::get(CI1->getType());   // MIN_INT / -1 -> poison  in ConstantFoldBinaryInstruction()
1154           return PoisonValue::get(CI1->getType());   // MIN_INT % -1 -> poison  in ConstantFoldBinaryInstruction()
1165         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
1169         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
1173         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
1219         return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1242           return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1598   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldCompareInstruction()
1599     return PoisonValue::get(ResultTy);  in ConstantFoldCompareInstruction()
2040   if (isa<PoisonValue>(C))  in ConstantFoldGetElementPtr()
2041     return PoisonValue::get(GEPTy);  in ConstantFoldGetElementPtr()
2045     return InBounds ? PoisonValue::get(GEPTy) : UndefValue::get(GEPTy);  in ConstantFoldGetElementPtr()