756   Option *PGOpt = getOptionPred(Arg, Length, isPrefixedOrGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()  local
757   if (!PGOpt)  in HandlePrefixedOrGroupedOption()
764     assert(OptionsMap.count(Arg) && OptionsMap.find(Arg)->second == PGOpt);  in HandlePrefixedOrGroupedOption()
768     if (MaybeValue.empty() || PGOpt->getFormattingFlag() == cl::AlwaysPrefix ||  in HandlePrefixedOrGroupedOption()
769         (PGOpt->getFormattingFlag() == cl::Prefix && MaybeValue[0] != '=')) {  in HandlePrefixedOrGroupedOption()
771       return PGOpt;  in HandlePrefixedOrGroupedOption()
776       return PGOpt;  in HandlePrefixedOrGroupedOption()
780     assert(isGrouping(PGOpt) && "Broken getOptionPred!");  in HandlePrefixedOrGroupedOption()
783     if (PGOpt->getValueExpectedFlag() == cl::ValueRequired) {  in HandlePrefixedOrGroupedOption()
784       ErrorParsing |= PGOpt->error("may not occur within a group!");  in HandlePrefixedOrGroupedOption()
791     ErrorParsing |= ProvideOption(PGOpt, Arg, StringRef(), 0, nullptr, Dummy);  in HandlePrefixedOrGroupedOption()
795     PGOpt = getOptionPred(Arg, Length, isGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()
796   } while (PGOpt);  in HandlePrefixedOrGroupedOption()