66   return isNullValue();  in isNegativeZeroValue()
88   return isNullValue();  in isZeroValue()
91 bool Constant::isNullValue() const {  in isNullValue()  function in Constant
366     if (!isa<ConstantInt>(CE->getOperand(1)) ||CE->getOperand(1)->isNullValue())  in canTrapImpl()
948   if (C->isNullValue() && rangeOnlyContains(V.begin(), V.end(), C))  in getImpl()
1005     isZero = V[0]->isNullValue();  in get()
1008         if (!V[i]->isNullValue())  in get()
1058   bool isZero = C->isNullValue();  in getImpl()
2868   if (AllSame && ToC->isNullValue())  in handleOperandChangeImpl()
2898   if (ToC->isNullValue()) {  in handleOperandChangeImpl()
2903       if (isAllZeros) isAllZeros = Val->isNullValue();  in handleOperandChangeImpl()