static std::string
GetBitsSetting()
{
    std::string bits = YGAS_OBJFMT_BITS;

    // Walk through bits_32 and bits_64 in parallel, ordering by command line
    // argument position.
    unsigned int bits32_pos = 0, bits32_num = 0;
    unsigned int bits64_pos = 0, bits64_num = 0;
    for (;;)
    {
        if (bits32_num < bits_32.size())
            bits32_pos = bits_32.getPosition(bits32_num);
        else
            bits32_pos = 0;
        if (bits64_num < bits_64.size())
            bits64_pos = bits_64.getPosition(bits64_num);
        else
            bits64_pos = 0;

        if (bits32_pos != 0 && (bits64_pos == 0 || bits32_pos < bits64_pos))
        {
            // Handle bits32 option
            ++bits32_num;
            bits = "32";
        }
        else if (bits64_pos != 0 &&
                 (bits32_pos == 0 || bits64_pos < bits32_pos))
        {
            // Handle bits64 option
            ++bits64_num;
            bits = "64";
        }
        else
            break; // we're done with the list
    }
    return bits;
}

int main(int argc, char **argv) {
  INITIALIZE_LLVM(argc, argv);

  llvm::cl::ParseCommandLineOptions(argc, argv, "Swift SIL Extractor\n");

  CompilerInvocation Invocation;

  Invocation.setMainExecutablePath(llvm::sys::fs::getMainExecutable(
      argv[0], reinterpret_cast<void *>(&anchorForGetMainExecutable)));

  // Give the context the list of search paths to use for modules.
  Invocation.setImportSearchPaths(ImportPaths);
  // Set the SDK path and target if given.
  if (SDKPath.getNumOccurrences() == 0) {
    const char *SDKROOT = getenv("SDKROOT");
    if (SDKROOT)
      SDKPath = SDKROOT;
  }
  if (!SDKPath.empty())
    Invocation.setSDKPath(SDKPath);
  if (!Triple.empty())
    Invocation.setTargetTriple(Triple);
  if (!ResourceDir.empty())
    Invocation.setRuntimeResourcePath(ResourceDir);
  Invocation.getClangImporterOptions().ModuleCachePath = ModuleCachePath;
  Invocation.setParseStdlib();
  Invocation.getLangOptions().DisableAvailabilityChecking = true;
  Invocation.getLangOptions().EnableAccessControl = false;
  Invocation.getLangOptions().EnableObjCAttrRequiresFoundation = false;

  // Load the input file.
  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
      llvm::MemoryBuffer::getFileOrSTDIN(InputFilename);
  if (!FileBufOrErr) {
    fprintf(stderr, "Error! Failed to open file: %s\n", InputFilename.c_str());
    exit(-1);
  }

  // If it looks like we have an AST, set the source file kind to SIL and the
  // name of the module to the file's name.
  Invocation.addInputBuffer(FileBufOrErr.get().get());

  serialization::ExtendedValidationInfo extendedInfo;
  auto result = serialization::validateSerializedAST(
      FileBufOrErr.get()->getBuffer(), &extendedInfo);
  bool HasSerializedAST = result.status == serialization::Status::Valid;

  if (HasSerializedAST) {
    const StringRef Stem = ModuleName.size()
                               ? StringRef(ModuleName)
                               : llvm::sys::path::stem(InputFilename);
    Invocation.setModuleName(Stem);
    Invocation.setInputKind(InputFileKind::IFK_Swift_Library);
  } else {
    Invocation.setModuleName("main");
    Invocation.setInputKind(InputFileKind::IFK_SIL);
  }

  SILOptions &SILOpts = Invocation.getSILOptions();
  SILOpts.AssumeUnqualifiedOwnershipWhenParsing =
      AssumeUnqualifiedOwnershipWhenParsing;

  CompilerInstance CI;
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);

  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  // If parsing produced an error, don't run any passes.
  if (CI.getASTContext().hadError())
    return 1;

  // Load the SIL if we have a module. We have to do this after SILParse
  // creating the unfortunate double if statement.
  if (HasSerializedAST) {
    assert(!CI.hasSILModule() &&
           "performSema() should not create a SILModule.");
    CI.setSILModule(
        SILModule::createEmptyModule(CI.getMainModule(), CI.getSILOptions()));
    std::unique_ptr<SerializedSILLoader> SL = SerializedSILLoader::create(
        CI.getASTContext(), CI.getSILModule(), nullptr);

    if (extendedInfo.isSIB())
      SL->getAllForModule(CI.getMainModule()->getName(), nullptr);
    else
      SL->getAll();
  }

  if (CommandLineFunctionNames.empty() && FunctionNameFile.empty())
    return CI.getASTContext().hadError();

  // For efficient usage, we separate our names into two separate sorted
  // lists, one of managled names, and one of unmangled names.
  std::vector<std::string> Names;
  getFunctionNames(Names);

  // First partition our function names into mangled/demangled arrays.
  auto FirstDemangledName = std::partition(
//.........这里部分代码省略.........

int main(int argc, const char **argv) {
    llvm::sys::PrintStackTraceOnErrorSignal();
    Transforms TransformManager;
    ReplacementHandling ReplacementHandler;

    TransformManager.registerTransforms();

    // Hide all options we don't define ourselves. Move pre-defined 'help',
    // 'help-list', and 'version' to our general category.
    llvm::StringMap<cl::Option*> Options;
    cl::getRegisteredOptions(Options);
    const cl::OptionCategory **CategoryEnd =
        VisibleCategories + llvm::array_lengthof(VisibleCategories);
    for (llvm::StringMap<cl::Option *>::iterator I = Options.begin(),
            E = Options.end();
            I != E; ++I) {
        if (I->first() == "help" || I->first() == "version" ||
                I->first() == "help-list")
            I->second->setCategory(GeneralCategory);
        else if (std::find(VisibleCategories, CategoryEnd, I->second->Category) ==
                 CategoryEnd)
            I->second->setHiddenFlag(cl::ReallyHidden);
    }
    cl::SetVersionPrinter(&printVersion);

    // Parse options and generate compilations.
    std::unique_ptr<CompilationDatabase> Compilations(
        FixedCompilationDatabase::loadFromCommandLine(argc, argv));
    cl::ParseCommandLineOptions(argc, argv);

    // Populate the ModifiableFiles structure.
    GlobalOptions.ModifiableFiles.readListFromString(IncludePaths, ExcludePaths);
    GlobalOptions.ModifiableFiles.readListFromFile(IncludeFromFile,
            ExcludeFromFile);

    if (!Compilations) {
        std::string ErrorMessage;
        Compilations = autoDetectCompilations(ErrorMessage);
        if (!Compilations) {
            llvm::errs() << llvm::sys::path::filename(argv[0]) << ": " << ErrorMessage
                         << "\n";
            return 1;
        }
    }

    // Populate source files.
    std::vector<std::string> Sources;
    if (!SourcePaths.empty()) {
        // Use only files that are not explicitly excluded.
        std::remove_copy_if(SourcePaths.begin(), SourcePaths.end(),
                            std::back_inserter(Sources),
                            isFileExplicitlyExcludedPredicate);
    } else {
        if (GlobalOptions.ModifiableFiles.isIncludeListEmpty()) {
            llvm::errs() << llvm::sys::path::filename(argv[0])
                         << ": Use -include to indicate which files of "
                         << "the compilatiion database to transform.\n";
            return 1;
        }
        // Use source paths from the compilation database.
        // We only transform files that are explicitly included.
        Sources = Compilations->getAllFiles();
        std::vector<std::string>::iterator E = std::remove_if(
                Sources.begin(), Sources.end(), isFileNotIncludedPredicate);
        Sources.erase(E, Sources.end());
    }



    // check if line ranges are just applyed to single files
    if ( !LineRanges.empty() && Sources.size() > 1 ) {
        llvm::errs() << "error: -line can only be used for single file.\n";
        return 1;
    }

    // add the line ranges to the sources
    if ( !LineRanges.empty() ) {
    }


    std::string filename;
    int line_begin, column_begin;
    int line_end, column_end;

    if ( Target.getNumOccurrences() ) {
        // TODO parse the target data
        std::stringstream sstr(Target);
        char separator;
        sstr >>
             line_begin >> separator >>
             column_begin >> separator >>
             line_end >> separator >>
             column_end >> separator >> filename;

        llvm::errs() << filename << " " << line_begin << "-" <<
                     column_begin << ":" << line_end << "-" << column_end << "\n";

        // store it in the Transform object
    }

int main(int argc, char *argv[]) {
  llvm::cl::SetVersionPrinter(PrintVersion);
  llvm::cl::ParseCommandLineOptions(argc, argv, "CFG to LLVM");

  auto context = llvm::make_unique<llvm::LLVMContext>();

  if (OS.empty()) {
    if (ListSupported || ListUnsupported) {
      OS = "linux"; // just need something
    }
    else {
      std::cerr << "-os must be specified" << std::endl;
      return EXIT_FAILURE;
    }
  }

  if (!(ListSupported || ListUnsupported || ListCFGFunctions) && EntryPoints.empty()) {
    std::cerr
        << "-entrypoint must be specified" << std::endl;
        return EXIT_FAILURE;
  }

  if (!InitArch(context.get(), OS, Arch)) {
    std::cerr
        << "Cannot initialize for arch " << Arch
        << " and OS " << OS << std::endl;
    return EXIT_FAILURE;
  }

  auto M = CreateModule(context.get());
  if (!M) {
    return EXIT_FAILURE;
  }

  auto triple = M->getTargetTriple();

  if (ListSupported || ListUnsupported) {
    ListArchSupportedInstructions(triple, llvm::outs(), ListSupported, ListUnsupported);
    return EXIT_SUCCESS;
  }

  if (InputFilename.empty()) {
    std::cerr
        << "Must specify an input file." << std::endl;
    return EXIT_FAILURE;
  }

  //reproduce NativeModule from CFG input argument
  try {
    std::unique_ptr<NativeModule> mod(ReadProtoBuf(InputFilename));
    if (!mod) {
      std::cerr << "Unable to read module from CFG" << std::endl;
      return EXIT_FAILURE;
    }

    if (ListCFGFunctions) {
      PrintCFGFunctionList(mod.get(), Arch);
      return EXIT_SUCCESS;
    }

    //make sure the entry point list is correct before we start lifting the code
    const std::vector<NativeEntrySymbol> &module_entry_points = mod->getEntryPoints();

    for (const auto &entry_point : EntryPoints) {
      auto it = std::find_if(
        module_entry_points.begin(),
        module_entry_points.end(),

        [&entry_point](const NativeEntrySymbol &symbol) -> bool {
          return (symbol.getName() == entry_point);
        }
      );

      if (it == module_entry_points.end()) {
          std::cerr << "The following entry point could not be found: \"" << entry_point << "\". Aborting..." << std::endl;
          return EXIT_FAILURE;
      }
    }

    //now, convert it to an LLVM module
    ArchInitAttachDetach(M);

    if (!LiftCodeIntoModule(mod.get(), M)) {
      std::cerr << "Failure to convert to LLVM module!" << std::endl;
      return EXIT_FAILURE;
    }

    std::set<VA> entry_point_pcs;
    for (const auto &entry_point_name : EntryPoints) {
      auto entry_pc = FindSymbolInModule(mod.get(), entry_point_name);
      assert(entry_pc != static_cast<VA>( -1));

      std::cerr << "Adding entry point: " << entry_point_name << std::endl
                << entry_point_name << " is implemented by sub_" << std::hex
                << entry_pc << std::endl;

      if ( !ArchAddEntryPointDriver(M, entry_point_name, entry_pc)) {
        return EXIT_FAILURE;
      }

//.........这里部分代码省略.........

int main(int argc, const char **argv) {
  llvm::sys::PrintStackTraceOnErrorSignal();
  Transforms TransformManager;
  ReplacementHandling ReplacementHandler;

  TransformManager.registerTransforms();

  // Hide all options we don't define ourselves. Move pre-defined 'help',
  // 'help-list', and 'version' to our general category.
  llvm::StringMap<cl::Option*> Options;
  cl::getRegisteredOptions(Options);
  const cl::OptionCategory **CategoryEnd =
      VisibleCategories + llvm::array_lengthof(VisibleCategories);
  for (llvm::StringMap<cl::Option *>::iterator I = Options.begin(),
                                               E = Options.end();
       I != E; ++I) {
    if (I->first() == "help" || I->first() == "version" ||
        I->first() == "help-list")
      I->second->setCategory(GeneralCategory);
    else if (std::find(VisibleCategories, CategoryEnd, I->second->Category) ==
             CategoryEnd)
      I->second->setHiddenFlag(cl::ReallyHidden);
  }
  cl::SetVersionPrinter(&printVersion);

  // Parse options and generate compilations.
  std::unique_ptr<CompilationDatabase> Compilations(
      FixedCompilationDatabase::loadFromCommandLine(argc, argv));
  cl::ParseCommandLineOptions(argc, argv);

  // Populate the ModifiableFiles structure.
  GlobalOptions.ModifiableFiles.readListFromString(IncludePaths, ExcludePaths);
  GlobalOptions.ModifiableFiles.readListFromFile(IncludeFromFile,
                                                 ExcludeFromFile);

  if (!Compilations) {
    std::string ErrorMessage;
    Compilations.reset(autoDetectCompilations(ErrorMessage));
    if (!Compilations) {
      llvm::errs() << llvm::sys::path::filename(argv[0]) << ": " << ErrorMessage
                   << "\n";
      return 1;
    }
  }

  // Populate source files.
  std::vector<std::string> Sources;
  if (!SourcePaths.empty()) {
    // Use only files that are not explicitly excluded.
    std::remove_copy_if(SourcePaths.begin(), SourcePaths.end(),
                        std::back_inserter(Sources),
                        isFileExplicitlyExcludedPredicate);
  } else {
    if (GlobalOptions.ModifiableFiles.isIncludeListEmpty()) {
      llvm::errs() << llvm::sys::path::filename(argv[0])
                   << ": Use -include to indicate which files of "
                   << "the compilatiion database to transform.\n";
      return 1;
    }
    // Use source paths from the compilation database.
    // We only transform files that are explicitly included.
    Sources = Compilations->getAllFiles();
    std::vector<std::string>::iterator E = std::remove_if(
        Sources.begin(), Sources.end(), isFileNotIncludedPredicate);
    Sources.erase(E, Sources.end());
  }

  // check if line ranges are just applyed to single files
  if ( !LineRanges.empty() && Sources.size() > 1 ){
     llvm::errs() << "error: -line can only be used for single file.\n";
     return 1;
  }

  // add the line ranges to the sources 
  if ( !LineRanges.empty() ){
  }

  if (Sources.empty()) {
    llvm::errs() << llvm::sys::path::filename(argv[0])
                 << ": Could not determine sources to transform.\n";
    return 1;
  }

  // Enable timming.
  GlobalOptions.EnableTiming = TimingDirectoryName.getNumOccurrences() > 0;

  bool CmdSwitchError = false;
  CompilerVersions RequiredVersions =
      handleSupportedCompilers(argv[0], CmdSwitchError);
  if (CmdSwitchError)
    return 1;

  TransformManager.createSelectedTransforms(GlobalOptions, RequiredVersions);

  if (TransformManager.begin() == TransformManager.end()) {
    if (SupportedCompilers.empty())
      llvm::errs() << llvm::sys::path::filename(argv[0])
                   << ": no selected transforms\n";
    else
      llvm::errs() << llvm::sys::path::filename(argv[0])
//.........这里部分代码省略.........

/**

Most of the main program is pieced together from examples on the web. We are doing the following.

-# Creating lists of include directories, defines, and input files from the command line arguments.
-# Initializing the compiler to read C++ code, and setting the compiler to think we are creating
   code for the default target architecture.
-# Creating the necessary source and file managers as well as the preprocessor.
-# Adding search directories and creating #define statements for -D command line arguments.
-# Telling clang to use our ICGASTConsumer as an ASTConsumer.
-# Parse the input file.

*/
int main( int argc , char * argv[] ) {

#if (__clang_major__ >= 6) || ((__clang_major__ == 3) && (__clang_minor__ >= 5))
    clang::TargetOptions to;
#elif (__clang_major__ == 3) && (__clang_minor__ >= 3)
    clang::TargetOptions * to = new clang::TargetOptions() ;
#else
    clang::TargetOptions to;
#endif
    clang::CompilerInstance ci;

    /* Gather all of the command line arguments into lists of include directories, defines, and input files.
       All other arguments will be ignored. */
    llvm::cl::SetVersionPrinter(ICG_version) ;
    llvm::cl::ParseCommandLineOptions(argc , argv) ;

    if ( ! validAttributesVersion(attr_version) ) {
        return -1 ;
    }

/*
    if ( show_units ) {
        list_units() ;
        return 0 ;
    }
*/

    if ( input_file_names.empty() ) {
        std::cerr << "No header file specified" << std::endl ;
        return 1 ;
    }

    ci.createDiagnostics();
    clang::DiagnosticOptions & diago = ci.getDiagnosticOpts() ;
    diago.ShowColors = 1 ;
    ci.getDiagnostics().setIgnoreAllWarnings(true) ;
#if ( GCC_MAJOR == 4 ) && ( GCC_MINOR <= 2 )
    ci.getDiagnostics().setSuppressAllDiagnostics() ;
#endif

    // Set all of the defaults to c++
    clang::CompilerInvocation::setLangDefaults(ci.getLangOpts() , clang::IK_CXX) ;
    ci.getLangOpts().CXXExceptions = true ;

    // Activate C++11 parsing
    ci.getLangOpts().CPlusPlus11 = true ;

    // Set the default target architecture
#if (__clang_major__ >= 6) || (__clang_major__ == 3) && (__clang_minor__ >= 5)
    to.Triple = llvm::sys::getDefaultTargetTriple();
#elif (__clang_major__ == 3) && (__clang_minor__ >= 3)
    to->Triple = llvm::sys::getDefaultTargetTriple();
#else
    to.Triple = llvm::sys::getDefaultTargetTriple();
#endif

#if (__clang_major__ >= 6) || (__clang_major__ == 3) && (__clang_minor__ >= 5)
    std::shared_ptr<clang::TargetOptions> shared_to  = std::make_shared<clang::TargetOptions>(to) ;
    clang::TargetInfo *pti = clang::TargetInfo::CreateTargetInfo(ci.getDiagnostics(), shared_to);
#else
    clang::TargetInfo *pti = clang::TargetInfo::CreateTargetInfo(ci.getDiagnostics(), to);
#endif
    ci.setTarget(pti);

    // Create all of the necessary managers.
    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
#if (__clang_major__ >= 6) || (__clang_major__ == 3) && (__clang_minor__ >= 5)
    ci.createPreprocessor(clang::TU_Complete);
#else
    ci.createPreprocessor();
#endif

    clang::HeaderSearch & hs = ci.getPreprocessor().getHeaderSearchInfo() ;
    clang::HeaderSearchOptions & hso = ci.getHeaderSearchOpts() ;
    clang::Preprocessor & pp = ci.getPreprocessor() ;

    // Add all of the include directories to the preprocessor
    HeaderSearchDirs hsd(hs , hso , pp, sim_services_flag) ;
    hsd.addSearchDirs ( include_dirs ) ;

    // Tell the preprocessor to use its default predefines
    clang::PreprocessorOptions & ppo = ci.getPreprocessorOpts() ;
    ppo.UsePredefines = true;
#if (__clang_major__ == 3) && (__clang_minor__ >= 8)
    pp.getBuiltinInfo().initializeBuiltins(pp.getIdentifierTable(), pp.getLangOpts());
#else
//.........这里部分代码省略.........

int
main(int argc, char* argv[])
{
    llvm::llvm_shutdown_obj llvm_manager(false);

    cl::SetVersionPrinter(&PrintVersion);
    cl::ParseCommandLineOptions(argc, argv);

    if (show_help)
        cl::PrintHelpMessage();

    if (show_license)
    {
        for (std::size_t i=0; i<sizeof(license_msg)/sizeof(license_msg[0]); i++)
            llvm::outs() << license_msg[i] << '\n';
        return EXIT_SUCCESS;
    }

    if (show_info)
    {
        llvm::outs() << full_version << '\n';
        list_module<yasm::ObjectFormatModule>();
        return EXIT_SUCCESS;
    }

    yasm::OffsetDiagnosticPrinter diag_printer(llvm::errs());
    yasm::Diagnostic diags(&diag_printer);
    yasm::SourceManager source_mgr(diags);
    diags.setSourceManager(&source_mgr);
    diag_printer.setPrefix("yobjdump");

    // Load standard modules
    if (!yasm::LoadStandardPlugins())
    {
        diags.Report(yasm::diag::fatal_standard_modules);
        return EXIT_FAILURE;
    }

    if (show_all_headers)
    {
        show_file_headers = true;
        show_section_headers = true;
        show_private_headers = true;
        show_relocs = true;
        show_symbols = true;
    }

    // Determine input filename and open input file.
    if (in_filenames.empty())
    {
        diags.Report(yasm::diag::fatal_no_input_files);
        return EXIT_FAILURE;
    }

    int retval = EXIT_SUCCESS;

    for (std::vector<std::string>::const_iterator i=in_filenames.begin(),
         end=in_filenames.end(); i != end; ++i)
    {
        try
        {
            if (DoDump(*i, source_mgr, diags) != EXIT_SUCCESS)
                retval = EXIT_FAILURE;
        }
        catch (std::out_of_range& err)
        {
            llvm::errs() << *i << ": "
                << "out of range error while reading (corrupt file?)\n";
            retval = EXIT_FAILURE;
        }
    }
    return retval;
}

// Collect file system header files.
// This function scans the file system for header files,
// starting at the directory of the module.map file,
// optionally filtering out all but the files covered by
// the include path options.
// Returns true if no errors.
bool ModuleMapChecker::collectFileSystemHeaders() {

  // Get directory containing the module.map file.
  // Might be relative to current directory, absolute, or empty.
  ModuleMapDirectory = getDirectoryFromPath(ModuleMapPath);

  // If no include paths specified, we do the whole tree starting
  // at the module.map directory.
  if (IncludePaths.size() == 0) {
    if (!collectFileSystemHeaders(StringRef("")))
      return false;
  } else {
    // Otherwise we only look at the sub-trees specified by the
    // include paths.
    for (std::vector<std::string>::const_iterator I = IncludePaths.begin(),
                                                  E = IncludePaths.end();
         I != E; ++I) {
      if (!collectFileSystemHeaders(*I))
        return false;
    }
  }

  // Sort it, because different file systems might order the file differently.
  std::sort(FileSystemHeaders.begin(), FileSystemHeaders.end());

  return true;
}

int main(int argc, char **argv) {
  llvm::cl::ParseCommandLineOptions(argc, argv, "clang-wpa");
  FileManager FileMgr;
  std::vector<ASTUnit*> ASTUnits;

  if (InputFilenames.empty())
    return 0;

  DiagnosticOptions DiagOpts;
  llvm::IntrusiveRefCntPtr<Diagnostic> Diags
    = CompilerInstance::createDiagnostics(DiagOpts, argc, argv);
  for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) {
    const std::string &InFile = InputFilenames[i];
    llvm::OwningPtr<ASTUnit> AST(ASTUnit::LoadFromPCHFile(InFile, Diags));
    if (!AST)
      return 1;

    ASTUnits.push_back(AST.take());
  }

  llvm::OwningPtr<CallGraph> CG;
  CG.reset(new CallGraph());

  for (unsigned i = 0, e = ASTUnits.size(); i != e; ++i)
    CG->addTU(ASTUnits[i]->getASTContext());

  CG->ViewCallGraph();
}

int main(int argc, char* argv[])
{
  llvm::cl::ParseCommandLineOptions(argc, argv, " globalcollect\n"
      "  This collects and prints global variables found in C programs.");

  if (!IgnoredParams.empty()) {
    cerr << "Ignoring the following parameters:";
    copy(IgnoredParams.begin(), IgnoredParams.end(),
        ostream_iterator<string>(cerr, " "));
  }

  // Create Preprocessor object
  PPContext context;

  // Add header search directories (C only, no C++ or ObjC)
  InitHeaderSearch init(context.headers);
  // user headers
  for (int i = 0; i < I_dirs.size(); ++i) {
    cerr << "adding " << I_dirs[i] << endl;
    init.AddPath(I_dirs[i], InitHeaderSearch::Angled, false, true, false);
  }
  init.AddDefaultSystemIncludePaths(context.opts);
  init.Realize();

  // Add defines passed in through parameters
  vector<char> predefineBuffer;
  for (int i = 0; i < D_macros.size(); ++i) {
    cerr << "defining " << D_macros[i] << endl;
    ::DefineBuiltinMacro(predefineBuffer, D_macros[i].c_str());
  }
  predefineBuffer.push_back('\0');
  context.pp.setPredefines(&predefineBuffer[0]);


  // Add input file
  const FileEntry* File = context.fm.getFile(InputFilename);
  if (!File) {
    cerr << "Failed to open \'" << InputFilename << "\'" << endl;
    return EXIT_FAILURE;
  }
  context.sm.createMainFileID(File, SourceLocation());


  // Parse it
  cout << "<h2><code>" << InputFilename << "</code></h2>" << endl << endl;
  cout << "<pre><code>";

  MyASTConsumer c;
  ParseAST(context.pp, &c);

  cout << "</code></pre>" << endl << endl;

  cout << endl;

  unsigned NumDiagnostics = context.diags.getNumDiagnostics();
  
  if (NumDiagnostics)
    fprintf(stderr, "%d diagnostic%s generated.\n", NumDiagnostics,
            (NumDiagnostics == 1 ? "" : "s"));
}

// main function
int
main(int argc, char* argv[])
{
    llvm::llvm_shutdown_obj llvm_manager(false);

    cl::SetVersionPrinter(&PrintVersion);
    cl::ParseCommandLineOptions(argc, argv, "", true);

    // Handle special exiting options
    if (show_license)
    {
        for (std::size_t i=0; i<sizeof(license_msg)/sizeof(license_msg[0]); i++)
            llvm::outs() << license_msg[i] << '\n';
        return EXIT_SUCCESS;
    }

    DiagnosticOptions diag_opts;
    diag_opts.ShowOptionNames = 1;
    diag_opts.ShowSourceRanges = 1;
    TextDiagnosticPrinter diag_printer(llvm::errs(), diag_opts);
    IntrusiveRefCntPtr<DiagnosticIDs> diagids(new DiagnosticIDs);
    DiagnosticsEngine diags(diagids, &diag_printer, false);
    FileSystemOptions opts;
    FileManager file_mgr(opts);
    SourceManager source_mgr(diags, file_mgr);
    diags.setSourceManager(&source_mgr);
    diag_printer.setPrefix("ygas");

    for (std::vector<std::string>::const_iterator i=unknown_options.begin(),
         end=unknown_options.end(); i != end; ++i)
    {
        diags.Report(diag::warn_unknown_command_line_option) << *i;
    }

    // Load standard modules
    if (!LoadStandardPlugins())
    {
        diags.Report(diag::fatal_standard_modules);
        return EXIT_FAILURE;
    }

#ifndef BUILD_STATIC
    // Load plugins
    for (std::vector<std::string>::const_iterator i=plugin_names.begin(),
         end=plugin_names.end(); i != end; ++i)
    {
        if (!LoadPlugin(*i))
            diags.Report(diag::warn_plugin_load) << *i;
    }
#endif

    // Default to stdin if no filename specified.
    if (in_filename.empty())
        in_filename = "-";

    return do_assemble(source_mgr, diags);
}

int main(int argc, const char **argv) {
  void *MainAddr = (void*) (intptr_t) GetExecutablePath;
  llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);

  std::string
    resourcesPath = CompilerInvocation::GetResourcesPath(argv[0], MainAddr);

  int optargc = 0;
  for (; optargc != argc; ++optargc) {
    if (StringRef(argv[optargc]) == "--args")
      break;
  }
  llvm::cl::ParseCommandLineOptions(optargc, argv, "arcmt-test");

  if (VerifyTransformedFiles) {
    if (ResultFiles.empty()) {
      llvm::cl::PrintHelpMessage();
      return 1;
    }
    return verifyTransformedFiles(ResultFiles);
  }

  if (optargc == argc) {
    llvm::cl::PrintHelpMessage();
    return 1;
  }

  ArrayRef<const char*> Args(argv+optargc+1, argc-optargc-1);

  if (CheckOnly)
    return checkForMigration(resourcesPath, Args);

  return performTransformations(resourcesPath, Args);
}

CompilationDatabase *autoDetectCompilations(std::string &ErrorMessage) {
  // Auto-detect a compilation database from BuildPath.
  if (BuildPath.getNumOccurrences() > 0)
    return CompilationDatabase::autoDetectFromDirectory(BuildPath,
                                                        ErrorMessage);
  // Try to auto-detect a compilation database from the first source.
  if (!SourcePaths.empty()) {
    if (CompilationDatabase *Compilations =
            CompilationDatabase::autoDetectFromSource(SourcePaths[0],
                                                      ErrorMessage)) {
      // FIXME: just pass SourcePaths[0] once getCompileCommands supports
      // non-absolute paths.
      SmallString<64> Path(SourcePaths[0]);
      llvm::sys::fs::make_absolute(Path);
      std::vector<CompileCommand> Commands =
          Compilations->getCompileCommands(Path);
      // Ignore a detected compilation database that doesn't contain source0
      // since it is probably an unrelated compilation database.
      if (!Commands.empty())
        return Compilations;
    }
    // Reset ErrorMessage since a fix compilation database will be created if
    // it fails to detect one from source.
    ErrorMessage = "";
    // If no compilation database can be detected from source then we create a
    // fixed compilation database with c++11 support.
    std::string CommandLine[] = { "-std=c++11" };
    return new FixedCompilationDatabase(".", CommandLine);
  }

  ErrorMessage = "Could not determine sources to transform";
  return 0;
}

static void processConfigFile(const std::string &path)
{
    oclint::option::ConfigFile config(path);
    for (const oclint::option::RuleConfigurationPair &ruleConfig : config.ruleConfigurations())
    {
        consumeRuleConfiguration(ruleConfig.key(), ruleConfig.value());
    }
    for (const llvm::StringRef &rulePath : config.rulePaths())
    {
        argRulesPath.push_back(rulePath.str());
    }
    std::vector<std::string> enableRules;
    for (auto rule : config.rules())
    {
        enableRules.push_back(rule.str());
    }
    filter.enableRules(enableRules.begin(), enableRules.end());
    std::vector<std::string> disableRules;
    for (auto rule : config.disableRules())
    {
        disableRules.push_back(rule.str());
    }
    filter.disableRules(disableRules.begin(), disableRules.end());

    updateArgIfSet(argOutput, config.output());
    updateArgIfSet(argReportType, config.reportType());
    updateArgIfSet(argMaxP1, config.maxP1());
    updateArgIfSet(argMaxP2, config.maxP2());
    updateArgIfSet(argMaxP3, config.maxP3());
    updateArgIfSet(argGlobalAnalysis, config.enableGlobalAnalysis());
    updateArgIfSet(argClangChecker, config.clangChecker());
    updateArgIfSet(argDuplications, config.allowDuplicatedViolations());
}

int main(int argc, char **argv) {
#if defined(__CYGWIN__)
  // Cygwin clang 3.5.2 with '-O3' generates CRASHING BINARY,
  // if main()'s first function call is passing argv[0].
  std::rand();
#endif
  llvm::cl::ParseCommandLineOptions(argc, argv);

  swift::Demangle::DemangleOptions options;
  options.SynthesizeSugarOnTypes = !DisableSugar;
  if (Simplified)
    options = swift::Demangle::DemangleOptions::SimplifiedUIDemangleOptions();

  if (InputNames.empty()) {
    CompactMode = true;
    return demangleSTDIN(options);
  } else {
    swift::Demangle::Context DCtx;
    for (llvm::StringRef name : InputNames) {
      demangle(llvm::outs(), name, DCtx, options);
      llvm::outs() << '\n';
    }

    return EXIT_SUCCESS;
  }
}

std::vector<std::string> oclint::option::rulesPath()
{
    if (argRulesPath.size() > 0)
    {
        return argRulesPath;
    }
    std::string defaultRulePath = libPath() + "/oclint/rules";
    std::vector<std::string> defaultRulesPath { defaultRulePath };
    return defaultRulesPath;
}

void oclint::option::process(const char *argv)
{
    preserveWorkingPath();
    preserveExecutablePath(argv);

    processConfigFiles();
    for (unsigned i = 0; i < argRuleConfiguration.size(); ++i)
    {
        std::string configuration = argRuleConfiguration[i];
        int indexOfSeparator = configuration.find_last_of("=");
        std::string key = configuration.substr(0, indexOfSeparator);
        std::string value = configuration.substr(indexOfSeparator + 1,
            configuration.size() - indexOfSeparator - 1);
        consumeRuleConfiguration(key, value);
    }

    filter.enableRules(argEnabledRules.begin(), argEnabledRules.end());
    filter.disableRules(argDisabledRules.begin(), argDisabledRules.end());
}

int main(int argc, char** argv) {
  llvm::cl::ParseCommandLineOptions(argc, argv);
  graph.structureFromFile(inputfilename);
  
  for (unsigned i = 0; i != statModeList.size(); ++i) {
    switch (statModeList[i]) {
      case summary: do_summary(); break;
      case degrees: do_degrees(); break;
      default: abort(); break;
    }
  }

  return 0;
}

static void getFunctionNames(std::vector<std::string> &Names) {
  std::copy(CommandLineFunctionNames.begin(), CommandLineFunctionNames.end(),
            std::back_inserter(Names));

  if (!FunctionNameFile.empty()) {
    llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
        llvm::MemoryBuffer::getFileOrSTDIN(FunctionNameFile);
    if (!FileBufOrErr) {
      fprintf(stderr, "Error! Failed to open file: %s\n",
              InputFilename.c_str());
      exit(-1);
    }
    StringRef Buffer = FileBufOrErr.get()->getBuffer();
    while (!Buffer.empty()) {
      StringRef Token, NewBuffer;
      std::tie(Token, NewBuffer) = llvm::getToken(Buffer, "\n");
      if (Token.empty()) {
        break;
      }
      Names.push_back(Token);
      Buffer = NewBuffer;
    }
  }
}

int main(int argc, char **argv) {
#if defined(__CYGWIN__)
  // Cygwin clang 3.5.2 with '-O3' generates CRASHING BINARY,
  // if main()'s first function call is passing argv[0].
  std::rand();
#endif  
  llvm::cl::ParseCommandLineOptions(argc, argv);

  swift::Demangle::DemangleOptions options;
  options.SynthesizeSugarOnTypes = !DisableSugar;
  if (Simplified)
    options = swift::Demangle::DemangleOptions::SimplifiedUIDemangleOptions();

  if (InputNames.empty()) {
    CompactMode = true;
    auto input = llvm::MemoryBuffer::getSTDIN();
    if (!input) {
      llvm::errs() << input.getError().message() << '\n';
      return EXIT_FAILURE;
    }
    llvm::StringRef inputContents = input.get()->getBuffer();

    // This doesn't handle Unicode symbols, but maybe that's okay.
    llvm::Regex maybeSymbol("_T[_a-zA-Z0-9$]+");
    llvm::SmallVector<llvm::StringRef, 1> matches;
    while (maybeSymbol.match(inputContents, &matches)) {
      llvm::outs() << substrBefore(inputContents, matches.front());
      demangle(llvm::outs(), matches.front(), options);
      inputContents = substrAfter(inputContents, matches.front());
    }
    llvm::outs() << inputContents;

  } else {
    for (llvm::StringRef name : InputNames) {
      demangle(llvm::outs(), name, options);
      llvm::outs() << '\n';
    }
  }

  return EXIT_SUCCESS;
}