192   if (isa<PoisonValue>(V))  in ConstantFoldCastInstruction()
193     return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
276         return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
353       if (isa<PoisonValue>(Cond)) {  in ConstantFoldSelectInstruction()
354         V = PoisonValue::get(V1Element->getType());  in ConstantFoldSelectInstruction()
371   if (isa<PoisonValue>(Cond))  in ConstantFoldSelectInstruction()
372     return PoisonValue::get(V1->getType());  in ConstantFoldSelectInstruction()
381   if (isa<PoisonValue>(V1))  in ConstantFoldSelectInstruction()
383   if (isa<PoisonValue>(V2))  in ConstantFoldSelectInstruction()
389     if (isa<PoisonValue>(C))  in ConstantFoldSelectInstruction()
419   if (isa<PoisonValue>(Val) || isa<UndefValue>(Idx))  in ConstantFoldExtractElementInstruction()
420     return PoisonValue::get(ValVTy->getElementType());  in ConstantFoldExtractElementInstruction()
433       return PoisonValue::get(ValFVTy->getElementType());  in ConstantFoldExtractElementInstruction()
481     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
500     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
529     return PoisonValue::get(VectorType::get(EltTy, MaskEltCount));  in ConstantFoldShuffleVectorInstruction()
695   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldBinaryInstruction()
696     return PoisonValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
737         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
745         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
755         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
761         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
768         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
809         return PoisonValue::get(CI2->getType());              // X / 0 == poison  in ConstantFoldBinaryInstruction()
816         return PoisonValue::get(CI2->getType());              // X % 0 == poison  in ConstantFoldBinaryInstruction()
909           return PoisonValue::get(CI1->getType());   // MIN_INT / -1 -> poison  in ConstantFoldBinaryInstruction()
917           return PoisonValue::get(CI1->getType());   // MIN_INT % -1 -> poison  in ConstantFoldBinaryInstruction()
928         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
932         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
936         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
982         return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1005           return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1226   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldCompareInstruction()
1227     return PoisonValue::get(ResultTy);  in ConstantFoldCompareInstruction()
1551   if (isa<PoisonValue>(C))  in ConstantFoldGetElementPtr()
1552     return PoisonValue::get(GEPTy);  in ConstantFoldGetElementPtr()
1556     return InBounds ? PoisonValue::get(GEPTy) : UndefValue::get(GEPTy);  in ConstantFoldGetElementPtr()