575 MCDwarfLineTable::tryGetFile(StringRef &Directory, StringRef &FileName,  in tryGetFile()  argument
579   return Header.tryGetFile(Directory, FileName, Checksum, Source, DwarfVersion,  in tryGetFile()
583 static bool isRootFile(const MCDwarfFile &RootFile, StringRef &Directory,  in isRootFile()  argument
592 MCDwarfLineTableHeader::tryGetFile(StringRef &Directory, StringRef &FileName,  in tryGetFile()  argument
596   if (Directory == CompilationDir)  in tryGetFile()
597     Directory = "";  in tryGetFile()
600     Directory = "";  in tryGetFile()
609   if (DwarfVersion >= 5 && isRootFile(RootFile, Directory, FileName, Checksum))  in tryGetFile()
617         std::make_pair((Directory + Twine('\0') + FileName).toStringRef(Buffer),  in tryGetFile()
634   if (Directory.empty()) {  in tryGetFile()
638       Directory = sys::path::parent_path(FileName);  in tryGetFile()
639       if (!Directory.empty())  in tryGetFile()
647   if (Directory.empty()) {  in tryGetFile()
651     DirIndex = llvm::find(MCDwarfDirs, Directory) - MCDwarfDirs.begin();  in tryGetFile()
653       MCDwarfDirs.push_back(std::string(Directory));  in tryGetFile()