761   Option *PGOpt = getOptionPred(Arg, Length, isPrefixedOrGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()  local
762   if (!PGOpt)  in HandlePrefixedOrGroupedOption()
769     assert(OptionsMap.count(Arg) && OptionsMap.find(Arg)->second == PGOpt);  in HandlePrefixedOrGroupedOption()
773     if (MaybeValue.empty() || PGOpt->getFormattingFlag() == cl::AlwaysPrefix ||  in HandlePrefixedOrGroupedOption()
774         (PGOpt->getFormattingFlag() == cl::Prefix && MaybeValue[0] != '=')) {  in HandlePrefixedOrGroupedOption()
776       return PGOpt;  in HandlePrefixedOrGroupedOption()
781       return PGOpt;  in HandlePrefixedOrGroupedOption()
785     assert(isGrouping(PGOpt) && "Broken getOptionPred!");  in HandlePrefixedOrGroupedOption()
788     if (PGOpt->getValueExpectedFlag() == cl::ValueRequired) {  in HandlePrefixedOrGroupedOption()
789       ErrorParsing |= PGOpt->error("may not occur within a group!");  in HandlePrefixedOrGroupedOption()
796     ErrorParsing |= ProvideOption(PGOpt, Arg, StringRef(), 0, nullptr, Dummy);  in HandlePrefixedOrGroupedOption()
800     PGOpt = getOptionPred(Arg, Length, isGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()
801   } while (PGOpt);  in HandlePrefixedOrGroupedOption()