532 Expected<unsigned> MCDwarfLineTable::tryGetFile(StringRef &Directory,  in tryGetFile()  argument
538   return Header.tryGetFile(Directory, FileName, Checksum, Source, DwarfVersion,  in tryGetFile()
542 static bool isRootFile(const MCDwarfFile &RootFile, StringRef &Directory,  in isRootFile()  argument
550 MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,  in tryGetFile()  argument
556   if (Directory == CompilationDir)  in tryGetFile()
557     Directory = "";  in tryGetFile()
560     Directory = "";  in tryGetFile()
569   if (isRootFile(RootFile, Directory, FileName, Checksum) && DwarfVersion >= 5)  in tryGetFile()
577         std::make_pair((Directory + Twine('\0') + FileName).toStringRef(Buffer),  in tryGetFile()
599   if (Directory.empty()) {  in tryGetFile()
603       Directory = sys::path::parent_path(FileName);  in tryGetFile()
604       if (!Directory.empty())  in tryGetFile()
612   if (Directory.empty()) {  in tryGetFile()
616     DirIndex = llvm::find(MCDwarfDirs, Directory) - MCDwarfDirs.begin();  in tryGetFile()
618       MCDwarfDirs.push_back(std::string(Directory));  in tryGetFile()