111     } else if (auto *undef = dyn_cast<Undefined>(s)) {  in addDefined()
150     replaceSymbol<Undefined>(s, name, file, refState,  in addUndefined()
158   else if (auto *undefined = dyn_cast<Undefined>(s))  in addUndefined()
191     } else if (auto *undefined = dyn_cast<Undefined>(s)) {  in addDylib()
199   if (wasInserted || isa<Undefined>(s) ||  in addDylib()
221   } else if (isa<Undefined>(s)) {  in addLazyArchive()
239   } else if (isa<Undefined>(s)) {  in addLazyObject()
271 static Defined *createBoundarySymbol(const Undefined &sym) {  in createBoundarySymbol()
277 static void handleSectionBoundarySymbol(const Undefined &sym, StringRef segSect,  in handleSectionBoundarySymbol()
317 static void handleSegmentBoundarySymbol(const Undefined &sym, StringRef segName,  in handleSegmentBoundarySymbol()
328 static bool recoverFromUndefinedSymbol(const Undefined &sym) {  in recoverFromUndefinedSymbol()
384 MapVector<const Undefined *, UndefinedDiag> undefs;
420 static const Symbol *getAlternativeSpelling(const Undefined &sym,  in getAlternativeSpelling()
439       if (dyn_cast<Undefined>(s) == nullptr)  in getAlternativeSpelling()
488     if (dyn_cast<Undefined>(sym) == nullptr &&  in getAlternativeSpelling()
531 static void reportUndefinedSymbol(const Undefined &sym,  in reportUndefinedSymbol()
596 void macho::treatUndefinedSymbol(const Undefined &sym, StringRef source) {  in treatUndefinedSymbol()
603 void macho::treatUndefinedSymbol(const Undefined &sym, const InputSection *isec,  in treatUndefinedSymbol()