55   return isNullValue();  in isNegativeZeroValue()
71   return isNullValue();  in isZeroValue()
74 bool Constant::isNullValue() const {  in isNullValue()  function in Constant
600     if (!isa<ConstantInt>(CE->getOperand(1)) ||CE->getOperand(1)->isNullValue())  in canTrapImpl()
1290   if (C->isNullValue() && rangeOnlyContains(V.begin(), V.end(), C))  in getImpl()
1340     isZero = V[0]->isNullValue();  in get()
1344         if (!V[i]->isNullValue())  in get()
1384   bool isZero = C->isNullValue();  in getImpl()
1427   if (V->isNullValue())  in getSplat()
1932   if (cast<Constant>(To)->isNullValue())  in handleOperandChangeImpl()
3382   if (AllSame && ToC->isNullValue())  in handleOperandChangeImpl()
3422   if (AllSame && ToC->isNullValue())  in handleOperandChangeImpl()