230       if (!isa<UndefValue>(GV->getInitializer()))  in TrackValueOfGlobalVariable()
379       if (!isa<UndefValue>(V))  in getValueState()
408       else if (isa<UndefValue>(Elt))  in getStructValueState()
955     markConstant(&I,ConstantExpr::getInsertElement(UndefValue::get(I.getType()),  in visitInsertElementInst()
979         V1State.getConstant() : UndefValue::get(I.getType());  in visitShuffleVectorInst()
981         V2State.getConstant() : UndefValue::get(I.getType());  in visitShuffleVectorInst()
983       MaskState.getConstant() : UndefValue::get(I.getOperand(2)->getType());  in visitShuffleVectorInst()
1458       if (isa<UndefValue>(BI->getCondition())) {  in ResolvedUndefsIn()
1480       if (isa<UndefValue>(SI->getCondition())) {  in ResolvedUndefsIn()
1542       Inst->replaceAllUsesWith(UndefValue::get(Inst->getType()));  in DeleteInstructionInBlock()
1606         ? IV.getConstant() : UndefValue::get(Inst->getType());  in runOnFunction()
1769         IV.getConstant() : UndefValue::get(AI->getType());  in runOnModule()
1791           TI->replaceAllUsesWith(UndefValue::get(TI->getType()));  in runOnModule()
1814           ? IV.getConstant() : UndefValue::get(Inst->getType());  in runOnModule()
1854             assert(BI->isConditional() && isa<UndefValue>(BI->getCondition()) &&  in runOnModule()
1857             assert(isa<UndefValue>(SI->getCondition()) && "Switch should fold");  in runOnModule()
1908         if (!isa<UndefValue>(RI->getOperand(0)))  in runOnModule()
1915     ReturnsToZap[i]->setOperand(0, UndefValue::get(F->getReturnType()));  in runOnModule()