132   if (isa<PoisonValue>(V))  in ConstantFoldCastInstruction()
133     return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
216         return PoisonValue::get(DestTy);  in ConstantFoldCastInstruction()
285       if (isa<PoisonValue>(Cond)) {  in ConstantFoldSelectInstruction()
286         V = PoisonValue::get(V1Element->getType());  in ConstantFoldSelectInstruction()
303   if (isa<PoisonValue>(Cond))  in ConstantFoldSelectInstruction()
304     return PoisonValue::get(V1->getType());  in ConstantFoldSelectInstruction()
313   if (isa<PoisonValue>(V1))  in ConstantFoldSelectInstruction()
315   if (isa<PoisonValue>(V2))  in ConstantFoldSelectInstruction()
321     if (isa<PoisonValue>(C))  in ConstantFoldSelectInstruction()
351   if (isa<PoisonValue>(Val) || isa<UndefValue>(Idx))  in ConstantFoldExtractElementInstruction()
352     return PoisonValue::get(ValVTy->getElementType());  in ConstantFoldExtractElementInstruction()
365       return PoisonValue::get(ValFVTy->getElementType());  in ConstantFoldExtractElementInstruction()
413     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
432     return PoisonValue::get(Val->getType());  in ConstantFoldInsertElementInstruction()
461     return PoisonValue::get(VectorType::get(EltTy, MaskEltCount));  in ConstantFoldShuffleVectorInstruction()
628   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldBinaryInstruction()
629     return PoisonValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
670         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
678         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
688         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
694         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
701         return PoisonValue::get(C2->getType());  in ConstantFoldBinaryInstruction()
742         return PoisonValue::get(CI2->getType());              // X / 0 == poison  in ConstantFoldBinaryInstruction()
749         return PoisonValue::get(CI2->getType());              // X % 0 == poison  in ConstantFoldBinaryInstruction()
826           return PoisonValue::get(CI1->getType());   // MIN_INT / -1 -> poison  in ConstantFoldBinaryInstruction()
834           return PoisonValue::get(CI1->getType());   // MIN_INT % -1 -> poison  in ConstantFoldBinaryInstruction()
845         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
849         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
853         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
899         return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
922           return PoisonValue::get(VTy);  in ConstantFoldBinaryInstruction()
1142   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldCompareInstruction()
1143     return PoisonValue::get(ResultTy);  in ConstantFoldCompareInstruction()
1347   if (isa<PoisonValue>(C))  in ConstantFoldGetElementPtr()
1348     return PoisonValue::get(GEPTy);  in ConstantFoldGetElementPtr()