907     if (LoVar && HiVar) {  in setName()
909       HiVar->setName(Func, getName() + "__hi");  in setName()
915     if (LoVar && HiVar) {
917       HiVar->setIsArg(Val);
926     assert(HiVar != nullptr);  in getHi()
927     return HiVar;  in getHi()
932     assert(HiVar == nullptr);  in initHiLo()
934     HiVar = Func->makeVariable(IceType_i32);  in initHiLo()
936     HiVar->setIsArg(getIsArg());  in initHiLo()
939       HiVar->setName(Func, getName() + "__hi");  in initHiLo()
955   Variable *HiVar = nullptr;  variable