398 PreferredTuple ChoosePreferredUse(PreferredTuple &CurrentUse,  in ChoosePreferredUse()  argument
402   if (!CurrentUse.Ty.isValid()) {  in ChoosePreferredUse()
403     if (CurrentUse.ExtendOpcode == OpcodeForCandidate ||  in ChoosePreferredUse()
404         CurrentUse.ExtendOpcode == TargetOpcode::G_ANYEXT)  in ChoosePreferredUse()
406     return CurrentUse;  in ChoosePreferredUse()
417       CurrentUse.ExtendOpcode != TargetOpcode::G_ANYEXT)  in ChoosePreferredUse()
418     return CurrentUse;  in ChoosePreferredUse()
419   else if (CurrentUse.ExtendOpcode == TargetOpcode::G_ANYEXT &&  in ChoosePreferredUse()
425   if (CurrentUse.Ty == TyForCandidate) {  in ChoosePreferredUse()
426     if (CurrentUse.ExtendOpcode == TargetOpcode::G_SEXT &&  in ChoosePreferredUse()
428       return CurrentUse;  in ChoosePreferredUse()
429     else if (CurrentUse.ExtendOpcode == TargetOpcode::G_ZEXT &&  in ChoosePreferredUse()
439   if (TyForCandidate.getSizeInBits() > CurrentUse.Ty.getSizeInBits()) {  in ChoosePreferredUse()
442   return CurrentUse;  in ChoosePreferredUse()