915     if (LoVar && HiVar) {  in setName()
917       HiVar->setName(Func, getName() + "__hi");  in setName()
923     if (LoVar && HiVar) {
925       HiVar->setIsArg(Val);
934     assert(HiVar != nullptr);  in getHi()
935     return HiVar;  in getHi()
940     assert(HiVar == nullptr);  in initHiLo()
942     HiVar = Func->makeVariable(IceType_i32);  in initHiLo()
944     HiVar->setIsArg(getIsArg());  in initHiLo()
947       HiVar->setName(Func, getName() + "__hi");  in initHiLo()
963   Variable *HiVar = nullptr;  variable