354   if (isa<PoisonValue>(V))  in ConstantFoldCastInstruction()
355     return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
462         return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
547       if (isa<PoisonValue>(Cond)) {  in ConstantFoldSelectInstruction()
548         V = PoisonValue::get(V1Element->getType());  in ConstantFoldSelectInstruction()
565   if (isa<PoisonValue>(Cond))  in ConstantFoldSelectInstruction()
566     return PoisonValue::get(V1->getType());  in ConstantFoldSelectInstruction()
575   if (isa<PoisonValue>(V1))  in ConstantFoldSelectInstruction()
577   if (isa<PoisonValue>(V2))  in ConstantFoldSelectInstruction()
583     if (isa<PoisonValue>(C))  in ConstantFoldSelectInstruction()
624   if (isa<PoisonValue>(Val) || isa<UndefValue>(Idx))  in ConstantFoldExtractElementInstruction()
625     return PoisonValue::get(ValVTy->getElementType());  in ConstantFoldExtractElementInstruction()
638       return PoisonValue::get(ValFVTy->getElementType());  in ConstantFoldExtractElementInstruction()
683     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
697     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
886   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldBinaryInstruction()
887     return PoisonValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
928         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
939         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
949         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
958         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
968         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
1021         return PoisonValue::get(CI2->getType());              // X / 0 == poison  in ConstantFoldBinaryInstruction()
1028         return PoisonValue::get(CI2->getType());              // X % 0 == poison  in ConstantFoldBinaryInstruction()
1142           return PoisonValue::get(CI1->getType());   // MIN_INT / -1 -> poison  in ConstantFoldBinaryInstruction()
1150           return PoisonValue::get(CI1->getType());   // MIN_INT % -1 -> poison  in ConstantFoldBinaryInstruction()
1161         return PoisonValue::get(C1->getType()); // too big shift is 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()
1215         return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1234           return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1717   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldCompareInstruction()
1718     return PoisonValue::get(ResultTy);  in ConstantFoldCompareInstruction()
2206   if (isa<PoisonValue>(C))  in ConstantFoldGetElementPtr()
2207     return PoisonValue::get(GEPTy);  in ConstantFoldGetElementPtr()
2211     return InBounds ? PoisonValue::get(GEPTy) : UndefValue::get(GEPTy);  in ConstantFoldGetElementPtr()