1 files changed, 0 insertions, 938 deletions

diff --git a/contrib/llvm/tools/clang/lib/Frontend/PrintPreprocessedOutput.cpp b/contrib/llvm/tools/clang/lib/Frontend/PrintPreprocessedOutput.cpp
deleted file mode 100644
index 732edacffbe3..000000000000
--- a/contrib/llvm/tools/clang/lib/Frontend/PrintPreprocessedOutput.cpp
+++ /dev/null
@@ -1,938 +0,0 @@
-//===--- PrintPreprocessedOutput.cpp - Implement the -E mode --------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This code simply runs the preprocessor on the input file and prints out the
-// result.  This is the traditional behavior of the -E option.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Frontend/Utils.h"
-#include "clang/Basic/CharInfo.h"
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Frontend/PreprocessorOutputOptions.h"
-#include "clang/Lex/MacroInfo.h"
-#include "clang/Lex/PPCallbacks.h"
-#include "clang/Lex/Pragma.h"
-#include "clang/Lex/Preprocessor.h"
-#include "clang/Lex/TokenConcatenation.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cstdio>
-using namespace clang;
-
-/// PrintMacroDefinition - Print a macro definition in a form that will be
-/// properly accepted back as a definition.
-static void PrintMacroDefinition(const IdentifierInfo &II, const MacroInfo &MI,
-                                 Preprocessor &PP, raw_ostream &OS) {
-  OS << "#define " << II.getName();
-
-  if (MI.isFunctionLike()) {
-    OS << '(';
-    if (!MI.param_empty()) {
-      MacroInfo::param_iterator AI = MI.param_begin(), E = MI.param_end();
-      for (; AI+1 != E; ++AI) {
-        OS << (*AI)->getName();
-        OS << ',';
-      }
-
-      // Last argument.
-      if ((*AI)->getName() == "__VA_ARGS__")
-        OS << "...";
-      else
-        OS << (*AI)->getName();
-    }
-
-    if (MI.isGNUVarargs())
-      OS << "...";  // #define foo(x...)
-
-    OS << ')';
-  }
-
-  // GCC always emits a space, even if the macro body is empty.  However, do not
-  // want to emit two spaces if the first token has a leading space.
-  if (MI.tokens_empty() || !MI.tokens_begin()->hasLeadingSpace())
-    OS << ' ';
-
-  SmallString<128> SpellingBuffer;
-  for (const auto &T : MI.tokens()) {
-    if (T.hasLeadingSpace())
-      OS << ' ';
-
-    OS << PP.getSpelling(T, SpellingBuffer);
-  }
-}
-
-//===----------------------------------------------------------------------===//
-// Preprocessed token printer
-//===----------------------------------------------------------------------===//
-
-namespace {
-class PrintPPOutputPPCallbacks : public PPCallbacks {
-  Preprocessor &PP;
-  SourceManager &SM;
-  TokenConcatenation ConcatInfo;
-public:
-  raw_ostream &OS;
-private:
-  unsigned CurLine;
-
-  bool EmittedTokensOnThisLine;
-  bool EmittedDirectiveOnThisLine;
-  SrcMgr::CharacteristicKind FileType;
-  SmallString<512> CurFilename;
-  bool Initialized;
-  bool DisableLineMarkers;
-  bool DumpDefines;
-  bool DumpIncludeDirectives;
-  bool UseLineDirectives;
-  bool IsFirstFileEntered;
-public:
-  PrintPPOutputPPCallbacks(Preprocessor &pp, raw_ostream &os, bool lineMarkers,
-                           bool defines, bool DumpIncludeDirectives,
-                           bool UseLineDirectives)
-      : PP(pp), SM(PP.getSourceManager()), ConcatInfo(PP), OS(os),
-        DisableLineMarkers(lineMarkers), DumpDefines(defines),
-        DumpIncludeDirectives(DumpIncludeDirectives),
-        UseLineDirectives(UseLineDirectives) {
-    CurLine = 0;
-    CurFilename += "<uninit>";
-    EmittedTokensOnThisLine = false;
-    EmittedDirectiveOnThisLine = false;
-    FileType = SrcMgr::C_User;
-    Initialized = false;
-    IsFirstFileEntered = false;
-  }
-
-  void setEmittedTokensOnThisLine() { EmittedTokensOnThisLine = true; }
-  bool hasEmittedTokensOnThisLine() const { return EmittedTokensOnThisLine; }
-
-  void setEmittedDirectiveOnThisLine() { EmittedDirectiveOnThisLine = true; }
-  bool hasEmittedDirectiveOnThisLine() const {
-    return EmittedDirectiveOnThisLine;
-  }
-
-  bool startNewLineIfNeeded(bool ShouldUpdateCurrentLine = true);
-
-  void FileChanged(SourceLocation Loc, FileChangeReason Reason,
-                   SrcMgr::CharacteristicKind FileType,
-                   FileID PrevFID) override;
-  void InclusionDirective(SourceLocation HashLoc, const Token &IncludeTok,
-                          StringRef FileName, bool IsAngled,
-                          CharSourceRange FilenameRange, const FileEntry *File,
-                          StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported,
-                          SrcMgr::CharacteristicKind FileType) override;
-  void Ident(SourceLocation Loc, StringRef str) override;
-  void PragmaMessage(SourceLocation Loc, StringRef Namespace,
-                     PragmaMessageKind Kind, StringRef Str) override;
-  void PragmaDebug(SourceLocation Loc, StringRef DebugType) override;
-  void PragmaDiagnosticPush(SourceLocation Loc, StringRef Namespace) override;
-  void PragmaDiagnosticPop(SourceLocation Loc, StringRef Namespace) override;
-  void PragmaDiagnostic(SourceLocation Loc, StringRef Namespace,
-                        diag::Severity Map, StringRef Str) override;
-  void PragmaWarning(SourceLocation Loc, StringRef WarningSpec,
-                     ArrayRef<int> Ids) override;
-  void PragmaWarningPush(SourceLocation Loc, int Level) override;
-  void PragmaWarningPop(SourceLocation Loc) override;
-  void PragmaExecCharsetPush(SourceLocation Loc, StringRef Str) override;
-  void PragmaExecCharsetPop(SourceLocation Loc) override;
-  void PragmaAssumeNonNullBegin(SourceLocation Loc) override;
-  void PragmaAssumeNonNullEnd(SourceLocation Loc) override;
-
-  bool HandleFirstTokOnLine(Token &Tok);
-
-  /// Move to the line of the provided source location. This will
-  /// return true if the output stream required adjustment or if
-  /// the requested location is on the first line.
-  bool MoveToLine(SourceLocation Loc) {
-    PresumedLoc PLoc = SM.getPresumedLoc(Loc);
-    if (PLoc.isInvalid())
-      return false;
-    return MoveToLine(PLoc.getLine()) || (PLoc.getLine() == 1);
-  }
-  bool MoveToLine(unsigned LineNo);
-
-  bool AvoidConcat(const Token &PrevPrevTok, const Token &PrevTok,
-                   const Token &Tok) {
-    return ConcatInfo.AvoidConcat(PrevPrevTok, PrevTok, Tok);
-  }
-  void WriteLineInfo(unsigned LineNo, const char *Extra=nullptr,
-                     unsigned ExtraLen=0);
-  bool LineMarkersAreDisabled() const { return DisableLineMarkers; }
-  void HandleNewlinesInToken(const char *TokStr, unsigned Len);
-
-  /// MacroDefined - This hook is called whenever a macro definition is seen.
-  void MacroDefined(const Token &MacroNameTok,
-                    const MacroDirective *MD) override;
-
-  /// MacroUndefined - This hook is called whenever a macro #undef is seen.
-  void MacroUndefined(const Token &MacroNameTok,
-                      const MacroDefinition &MD,
-                      const MacroDirective *Undef) override;
-
-  void BeginModule(const Module *M);
-  void EndModule(const Module *M);
-};
-}  // end anonymous namespace
-
-void PrintPPOutputPPCallbacks::WriteLineInfo(unsigned LineNo,
-                                             const char *Extra,
-                                             unsigned ExtraLen) {
-  startNewLineIfNeeded(/*ShouldUpdateCurrentLine=*/false);
-
-  // Emit #line directives or GNU line markers depending on what mode we're in.
-  if (UseLineDirectives) {
-    OS << "#line" << ' ' << LineNo << ' ' << '"';
-    OS.write_escaped(CurFilename);
-    OS << '"';
-  } else {
-    OS << '#' << ' ' << LineNo << ' ' << '"';
-    OS.write_escaped(CurFilename);
-    OS << '"';
-
-    if (ExtraLen)
-      OS.write(Extra, ExtraLen);
-
-    if (FileType == SrcMgr::C_System)
-      OS.write(" 3", 2);
-    else if (FileType == SrcMgr::C_ExternCSystem)
-      OS.write(" 3 4", 4);
-  }
-  OS << '\n';
-}
-
-/// MoveToLine - Move the output to the source line specified by the location
-/// object.  We can do this by emitting some number of \n's, or be emitting a
-/// #line directive.  This returns false if already at the specified line, true
-/// if some newlines were emitted.
-bool PrintPPOutputPPCallbacks::MoveToLine(unsigned LineNo) {
-  // If this line is "close enough" to the original line, just print newlines,
-  // otherwise print a #line directive.
-  if (LineNo-CurLine <= 8) {
-    if (LineNo-CurLine == 1)
-      OS << '\n';
-    else if (LineNo == CurLine)
-      return false;    // Spelling line moved, but expansion line didn't.
-    else {
-      const char *NewLines = "\n\n\n\n\n\n\n\n";
-      OS.write(NewLines, LineNo-CurLine);
-    }
-  } else if (!DisableLineMarkers) {
-    // Emit a #line or line marker.
-    WriteLineInfo(LineNo, nullptr, 0);
-  } else {
-    // Okay, we're in -P mode, which turns off line markers.  However, we still
-    // need to emit a newline between tokens on different lines.
-    startNewLineIfNeeded(/*ShouldUpdateCurrentLine=*/false);
-  }
-
-  CurLine = LineNo;
-  return true;
-}
-
-bool
-PrintPPOutputPPCallbacks::startNewLineIfNeeded(bool ShouldUpdateCurrentLine) {
-  if (EmittedTokensOnThisLine || EmittedDirectiveOnThisLine) {
-    OS << '\n';
-    EmittedTokensOnThisLine = false;
-    EmittedDirectiveOnThisLine = false;
-    if (ShouldUpdateCurrentLine)
-      ++CurLine;
-    return true;
-  }
-
-  return false;
-}
-
-/// FileChanged - Whenever the preprocessor enters or exits a #include file
-/// it invokes this handler.  Update our conception of the current source
-/// position.
-void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
-                                           FileChangeReason Reason,
-                                       SrcMgr::CharacteristicKind NewFileType,
-                                       FileID PrevFID) {
-  // Unless we are exiting a #include, make sure to skip ahead to the line the
-  // #include directive was at.
-  SourceManager &SourceMgr = SM;
-
-  PresumedLoc UserLoc = SourceMgr.getPresumedLoc(Loc);
-  if (UserLoc.isInvalid())
-    return;
-
-  unsigned NewLine = UserLoc.getLine();
-
-  if (Reason == PPCallbacks::EnterFile) {
-    SourceLocation IncludeLoc = UserLoc.getIncludeLoc();
-    if (IncludeLoc.isValid())
-      MoveToLine(IncludeLoc);
-  } else if (Reason == PPCallbacks::SystemHeaderPragma) {
-    // GCC emits the # directive for this directive on the line AFTER the
-    // directive and emits a bunch of spaces that aren't needed. This is because
-    // otherwise we will emit a line marker for THIS line, which requires an
-    // extra blank line after the directive to avoid making all following lines
-    // off by one. We can do better by simply incrementing NewLine here.
-    NewLine += 1;
-  }
-
-  CurLine = NewLine;
-
-  CurFilename.clear();
-  CurFilename += UserLoc.getFilename();
-  FileType = NewFileType;
-
-  if (DisableLineMarkers) {
-    startNewLineIfNeeded(/*ShouldUpdateCurrentLine=*/false);
-    return;
-  }
-
-  if (!Initialized) {
-    WriteLineInfo(CurLine);
-    Initialized = true;
-  }
-
-  // Do not emit an enter marker for the main file (which we expect is the first
-  // entered file). This matches gcc, and improves compatibility with some tools
-  // which track the # line markers as a way to determine when the preprocessed
-  // output is in the context of the main file.
-  if (Reason == PPCallbacks::EnterFile && !IsFirstFileEntered) {
-    IsFirstFileEntered = true;
-    return;
-  }
-
-  switch (Reason) {
-  case PPCallbacks::EnterFile:
-    WriteLineInfo(CurLine, " 1", 2);
-    break;
-  case PPCallbacks::ExitFile:
-    WriteLineInfo(CurLine, " 2", 2);
-    break;
-  case PPCallbacks::SystemHeaderPragma:
-  case PPCallbacks::RenameFile:
-    WriteLineInfo(CurLine);
-    break;
-  }
-}
-
-void PrintPPOutputPPCallbacks::InclusionDirective(
-    SourceLocation HashLoc,
-    const Token &IncludeTok,
-    StringRef FileName,
-    bool IsAngled,
-    CharSourceRange FilenameRange,
-    const FileEntry *File,
-    StringRef SearchPath,
-    StringRef RelativePath,
-    const Module *Imported,
-    SrcMgr::CharacteristicKind FileType) {
-  // In -dI mode, dump #include directives prior to dumping their content or
-  // interpretation.
-  if (DumpIncludeDirectives) {
-    startNewLineIfNeeded();
-    MoveToLine(HashLoc);
-    const std::string TokenText = PP.getSpelling(IncludeTok);
-    assert(!TokenText.empty());
-    OS << "#" << TokenText << " "
-       << (IsAngled ? '<' : '"') << FileName << (IsAngled ? '>' : '"')
-       << " /* clang -E -dI */";
-    setEmittedDirectiveOnThisLine();
-    startNewLineIfNeeded();
-  }
-
-  // When preprocessing, turn implicit imports into module import pragmas.
-  if (Imported) {
-    switch (IncludeTok.getIdentifierInfo()->getPPKeywordID()) {
-    case tok::pp_include:
-    case tok::pp_import:
-    case tok::pp_include_next:
-      startNewLineIfNeeded();
-      MoveToLine(HashLoc);
-      OS << "#pragma clang module import " << Imported->getFullModuleName(true)
-         << " /* clang -E: implicit import for "
-         << "#" << PP.getSpelling(IncludeTok) << " "
-         << (IsAngled ? '<' : '"') << FileName << (IsAngled ? '>' : '"')
-         << " */";
-      // Since we want a newline after the pragma, but not a #<line>, start a
-      // new line immediately.
-      EmittedTokensOnThisLine = true;
-      startNewLineIfNeeded();
-      break;
-
-    case tok::pp___include_macros:
-      // #__include_macros has no effect on a user of a preprocessed source
-      // file; the only effect is on preprocessing.
-      //
-      // FIXME: That's not *quite* true: it causes the module in question to
-      // be loaded, which can affect downstream diagnostics.
-      break;
-
-    default:
-      llvm_unreachable("unknown include directive kind");
-      break;
-    }
-  }
-}
-
-/// Handle entering the scope of a module during a module compilation.
-void PrintPPOutputPPCallbacks::BeginModule(const Module *M) {
-  startNewLineIfNeeded();
-  OS << "#pragma clang module begin " << M->getFullModuleName(true);
-  setEmittedDirectiveOnThisLine();
-}
-
-/// Handle leaving the scope of a module during a module compilation.
-void PrintPPOutputPPCallbacks::EndModule(const Module *M) {
-  startNewLineIfNeeded();
-  OS << "#pragma clang module end /*" << M->getFullModuleName(true) << "*/";
-  setEmittedDirectiveOnThisLine();
-}
-
-/// Ident - Handle #ident directives when read by the preprocessor.
-///
-void PrintPPOutputPPCallbacks::Ident(SourceLocation Loc, StringRef S) {
-  MoveToLine(Loc);
-
-  OS.write("#ident ", strlen("#ident "));
-  OS.write(S.begin(), S.size());
-  EmittedTokensOnThisLine = true;
-}
-
-/// MacroDefined - This hook is called whenever a macro definition is seen.
-void PrintPPOutputPPCallbacks::MacroDefined(const Token &MacroNameTok,
-                                            const MacroDirective *MD) {
-  const MacroInfo *MI = MD->getMacroInfo();
-  // Only print out macro definitions in -dD mode.
-  if (!DumpDefines ||
-      // Ignore __FILE__ etc.
-      MI->isBuiltinMacro()) return;
-
-  MoveToLine(MI->getDefinitionLoc());
-  PrintMacroDefinition(*MacroNameTok.getIdentifierInfo(), *MI, PP, OS);
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::MacroUndefined(const Token &MacroNameTok,
-                                              const MacroDefinition &MD,
-                                              const MacroDirective *Undef) {
-  // Only print out macro definitions in -dD mode.
-  if (!DumpDefines) return;
-
-  MoveToLine(MacroNameTok.getLocation());
-  OS << "#undef " << MacroNameTok.getIdentifierInfo()->getName();
-  setEmittedDirectiveOnThisLine();
-}
-
-static void outputPrintable(raw_ostream &OS, StringRef Str) {
-  for (unsigned char Char : Str) {
-    if (isPrintable(Char) && Char != '\\' && Char != '"')
-      OS << (char)Char;
-    else // Output anything hard as an octal escape.
-      OS << '\\'
-         << (char)('0' + ((Char >> 6) & 7))
-         << (char)('0' + ((Char >> 3) & 7))
-         << (char)('0' + ((Char >> 0) & 7));
-  }
-}
-
-void PrintPPOutputPPCallbacks::PragmaMessage(SourceLocation Loc,
-                                             StringRef Namespace,
-                                             PragmaMessageKind Kind,
-                                             StringRef Str) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma ";
-  if (!Namespace.empty())
-    OS << Namespace << ' ';
-  switch (Kind) {
-    case PMK_Message:
-      OS << "message(\"";
-      break;
-    case PMK_Warning:
-      OS << "warning \"";
-      break;
-    case PMK_Error:
-      OS << "error \"";
-      break;
-  }
-
-  outputPrintable(OS, Str);
-  OS << '"';
-  if (Kind == PMK_Message)
-    OS << ')';
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaDebug(SourceLocation Loc,
-                                           StringRef DebugType) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-
-  OS << "#pragma clang __debug ";
-  OS << DebugType;
-
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::
-PragmaDiagnosticPush(SourceLocation Loc, StringRef Namespace) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma " << Namespace << " diagnostic push";
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::
-PragmaDiagnosticPop(SourceLocation Loc, StringRef Namespace) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma " << Namespace << " diagnostic pop";
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaDiagnostic(SourceLocation Loc,
-                                                StringRef Namespace,
-                                                diag::Severity Map,
-                                                StringRef Str) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma " << Namespace << " diagnostic ";
-  switch (Map) {
-  case diag::Severity::Remark:
-    OS << "remark";
-    break;
-  case diag::Severity::Warning:
-    OS << "warning";
-    break;
-  case diag::Severity::Error:
-    OS << "error";
-    break;
-  case diag::Severity::Ignored:
-    OS << "ignored";
-    break;
-  case diag::Severity::Fatal:
-    OS << "fatal";
-    break;
-  }
-  OS << " \"" << Str << '"';
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaWarning(SourceLocation Loc,
-                                             StringRef WarningSpec,
-                                             ArrayRef<int> Ids) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma warning(" << WarningSpec << ':';
-  for (ArrayRef<int>::iterator I = Ids.begin(), E = Ids.end(); I != E; ++I)
-    OS << ' ' << *I;
-  OS << ')';
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaWarningPush(SourceLocation Loc,
-                                                 int Level) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma warning(push";
-  if (Level >= 0)
-    OS << ", " << Level;
-  OS << ')';
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaWarningPop(SourceLocation Loc) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma warning(pop)";
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaExecCharsetPush(SourceLocation Loc,
-                                                     StringRef Str) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma character_execution_set(push";
-  if (!Str.empty())
-    OS << ", " << Str;
-  OS << ')';
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::PragmaExecCharsetPop(SourceLocation Loc) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma character_execution_set(pop)";
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::
-PragmaAssumeNonNullBegin(SourceLocation Loc) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma clang assume_nonnull begin";
-  setEmittedDirectiveOnThisLine();
-}
-
-void PrintPPOutputPPCallbacks::
-PragmaAssumeNonNullEnd(SourceLocation Loc) {
-  startNewLineIfNeeded();
-  MoveToLine(Loc);
-  OS << "#pragma clang assume_nonnull end";
-  setEmittedDirectiveOnThisLine();
-}
-
-/// HandleFirstTokOnLine - When emitting a preprocessed file in -E mode, this
-/// is called for the first token on each new line.  If this really is the start
-/// of a new logical line, handle it and return true, otherwise return false.
-/// This may not be the start of a logical line because the "start of line"
-/// marker is set for spelling lines, not expansion ones.
-bool PrintPPOutputPPCallbacks::HandleFirstTokOnLine(Token &Tok) {
-  // Figure out what line we went to and insert the appropriate number of
-  // newline characters.
-  if (!MoveToLine(Tok.getLocation()))
-    return false;
-
-  // Print out space characters so that the first token on a line is
-  // indented for easy reading.
-  unsigned ColNo = SM.getExpansionColumnNumber(Tok.getLocation());
-
-  // The first token on a line can have a column number of 1, yet still expect
-  // leading white space, if a macro expansion in column 1 starts with an empty
-  // macro argument, or an empty nested macro expansion. In this case, move the
-  // token to column 2.
-  if (ColNo == 1 && Tok.hasLeadingSpace())
-    ColNo = 2;
-
-  // This hack prevents stuff like:
-  // #define HASH #
-  // HASH define foo bar
-  // From having the # character end up at column 1, which makes it so it
-  // is not handled as a #define next time through the preprocessor if in
-  // -fpreprocessed mode.
-  if (ColNo <= 1 && Tok.is(tok::hash))
-    OS << ' ';
-
-  // Otherwise, indent the appropriate number of spaces.
-  for (; ColNo > 1; --ColNo)
-    OS << ' ';
-
-  return true;
-}
-
-void PrintPPOutputPPCallbacks::HandleNewlinesInToken(const char *TokStr,
-                                                     unsigned Len) {
-  unsigned NumNewlines = 0;
-  for (; Len; --Len, ++TokStr) {
-    if (*TokStr != '\n' &&
-        *TokStr != '\r')
-      continue;
-
-    ++NumNewlines;
-
-    // If we have \n\r or \r\n, skip both and count as one line.
-    if (Len != 1 &&
-        (TokStr[1] == '\n' || TokStr[1] == '\r') &&
-        TokStr[0] != TokStr[1]) {
-      ++TokStr;
-      --Len;
-    }
-  }
-
-  if (NumNewlines == 0) return;
-
-  CurLine += NumNewlines;
-}
-
-
-namespace {
-struct UnknownPragmaHandler : public PragmaHandler {
-  const char *Prefix;
-  PrintPPOutputPPCallbacks *Callbacks;
-
-  // Set to true if tokens should be expanded
-  bool ShouldExpandTokens;
-
-  UnknownPragmaHandler(const char *prefix, PrintPPOutputPPCallbacks *callbacks,
-                       bool RequireTokenExpansion)
-      : Prefix(prefix), Callbacks(callbacks),
-        ShouldExpandTokens(RequireTokenExpansion) {}
-  void HandlePragma(Preprocessor &PP, PragmaIntroducer Introducer,
-                    Token &PragmaTok) override {
-    // Figure out what line we went to and insert the appropriate number of
-    // newline characters.
-    Callbacks->startNewLineIfNeeded();
-    Callbacks->MoveToLine(PragmaTok.getLocation());
-    Callbacks->OS.write(Prefix, strlen(Prefix));
-
-    if (ShouldExpandTokens) {
-      // The first token does not have expanded macros. Expand them, if
-      // required.
-      auto Toks = llvm::make_unique<Token[]>(1);
-      Toks[0] = PragmaTok;
-      PP.EnterTokenStream(std::move(Toks), /*NumToks=*/1,
-                          /*DisableMacroExpansion=*/false,
-                          /*IsReinject=*/false);
-      PP.Lex(PragmaTok);
-    }
-    Token PrevToken;
-    Token PrevPrevToken;
-    PrevToken.startToken();
-    PrevPrevToken.startToken();
-
-    // Read and print all of the pragma tokens.
-    while (PragmaTok.isNot(tok::eod)) {
-      if (PragmaTok.hasLeadingSpace() ||
-          Callbacks->AvoidConcat(PrevPrevToken, PrevToken, PragmaTok))
-        Callbacks->OS << ' ';
-      std::string TokSpell = PP.getSpelling(PragmaTok);
-      Callbacks->OS.write(&TokSpell[0], TokSpell.size());
-
-      PrevPrevToken = PrevToken;
-      PrevToken = PragmaTok;
-
-      if (ShouldExpandTokens)
-        PP.Lex(PragmaTok);
-      else
-        PP.LexUnexpandedToken(PragmaTok);
-    }
-    Callbacks->setEmittedDirectiveOnThisLine();
-  }
-};
-} // end anonymous namespace
-
-
-static void PrintPreprocessedTokens(Preprocessor &PP, Token &Tok,
-                                    PrintPPOutputPPCallbacks *Callbacks,
-                                    raw_ostream &OS) {
-  bool DropComments = PP.getLangOpts().TraditionalCPP &&
-                      !PP.getCommentRetentionState();
-
-  char Buffer[256];
-  Token PrevPrevTok, PrevTok;
-  PrevPrevTok.startToken();
-  PrevTok.startToken();
-  while (1) {
-    if (Callbacks->hasEmittedDirectiveOnThisLine()) {
-      Callbacks->startNewLineIfNeeded();
-      Callbacks->MoveToLine(Tok.getLocation());
-    }
-
-    // If this token is at the start of a line, emit newlines if needed.
-    if (Tok.isAtStartOfLine() && Callbacks->HandleFirstTokOnLine(Tok)) {
-      // done.
-    } else if (Tok.hasLeadingSpace() ||
-               // If we haven't emitted a token on this line yet, PrevTok isn't
-               // useful to look at and no concatenation could happen anyway.
-               (Callbacks->hasEmittedTokensOnThisLine() &&
-                // Don't print "-" next to "-", it would form "--".
-                Callbacks->AvoidConcat(PrevPrevTok, PrevTok, Tok))) {
-      OS << ' ';
-    }
-
-    if (DropComments && Tok.is(tok::comment)) {
-      // Skip comments. Normally the preprocessor does not generate
-      // tok::comment nodes at all when not keeping comments, but under
-      // -traditional-cpp the lexer keeps /all/ whitespace, including comments.
-      SourceLocation StartLoc = Tok.getLocation();
-      Callbacks->MoveToLine(StartLoc.getLocWithOffset(Tok.getLength()));
-    } else if (Tok.is(tok::eod)) {
-      // Don't print end of directive tokens, since they are typically newlines
-      // that mess up our line tracking. These come from unknown pre-processor
-      // directives or hash-prefixed comments in standalone assembly files.
-      PP.Lex(Tok);
-      continue;
-    } else if (Tok.is(tok::annot_module_include)) {
-      // PrintPPOutputPPCallbacks::InclusionDirective handles producing
-      // appropriate output here. Ignore this token entirely.
-      PP.Lex(Tok);
-      continue;
-    } else if (Tok.is(tok::annot_module_begin)) {
-      // FIXME: We retrieve this token after the FileChanged callback, and
-      // retrieve the module_end token before the FileChanged callback, so
-      // we render this within the file and render the module end outside the
-      // file, but this is backwards from the token locations: the module_begin
-      // token is at the include location (outside the file) and the module_end
-      // token is at the EOF location (within the file).
-      Callbacks->BeginModule(
-          reinterpret_cast<Module *>(Tok.getAnnotationValue()));
-      PP.Lex(Tok);
-      continue;
-    } else if (Tok.is(tok::annot_module_end)) {
-      Callbacks->EndModule(
-          reinterpret_cast<Module *>(Tok.getAnnotationValue()));
-      PP.Lex(Tok);
-      continue;
-    } else if (Tok.is(tok::annot_header_unit)) {
-      // This is a header-name that has been (effectively) converted into a
-      // module-name.
-      // FIXME: The module name could contain non-identifier module name
-      // components. We don't have a good way to round-trip those.
-      Module *M = reinterpret_cast<Module *>(Tok.getAnnotationValue());
-      std::string Name = M->getFullModuleName();
-      OS.write(Name.data(), Name.size());
-      Callbacks->HandleNewlinesInToken(Name.data(), Name.size());
-    } else if (Tok.isAnnotation()) {
-      // Ignore annotation tokens created by pragmas - the pragmas themselves
-      // will be reproduced in the preprocessed output.
-      PP.Lex(Tok);
-      continue;
-    } else if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
-      OS << II->getName();
-    } else if (Tok.isLiteral() && !Tok.needsCleaning() &&
-               Tok.getLiteralData()) {
-      OS.write(Tok.getLiteralData(), Tok.getLength());
-    } else if (Tok.getLength() < llvm::array_lengthof(Buffer)) {
-      const char *TokPtr = Buffer;
-      unsigned Len = PP.getSpelling(Tok, TokPtr);
-      OS.write(TokPtr, Len);
-
-      // Tokens that can contain embedded newlines need to adjust our current
-      // line number.
-      if (Tok.getKind() == tok::comment || Tok.getKind() == tok::unknown)
-        Callbacks->HandleNewlinesInToken(TokPtr, Len);
-    } else {
-      std::string S = PP.getSpelling(Tok);
-      OS.write(S.data(), S.size());
-
-      // Tokens that can contain embedded newlines need to adjust our current
-      // line number.
-      if (Tok.getKind() == tok::comment || Tok.getKind() == tok::unknown)
-        Callbacks->HandleNewlinesInToken(S.data(), S.size());
-    }
-    Callbacks->setEmittedTokensOnThisLine();
-
-    if (Tok.is(tok::eof)) break;
-
-    PrevPrevTok = PrevTok;
-    PrevTok = Tok;
-    PP.Lex(Tok);
-  }
-}
-
-typedef std::pair<const IdentifierInfo *, MacroInfo *> id_macro_pair;
-static int MacroIDCompare(const id_macro_pair *LHS, const id_macro_pair *RHS) {
-  return LHS->first->getName().compare(RHS->first->getName());
-}
-
-static void DoPrintMacros(Preprocessor &PP, raw_ostream *OS) {
-  // Ignore unknown pragmas.
-  PP.IgnorePragmas();
-
-  // -dM mode just scans and ignores all tokens in the files, then dumps out
-  // the macro table at the end.
-  PP.EnterMainSourceFile();
-
-  Token Tok;
-  do PP.Lex(Tok);
-  while (Tok.isNot(tok::eof));
-
-  SmallVector<id_macro_pair, 128> MacrosByID;
-  for (Preprocessor::macro_iterator I = PP.macro_begin(), E = PP.macro_end();
-       I != E; ++I) {
-    auto *MD = I->second.getLatest();
-    if (MD && MD->isDefined())
-      MacrosByID.push_back(id_macro_pair(I->first, MD->getMacroInfo()));
-  }
-  llvm::array_pod_sort(MacrosByID.begin(), MacrosByID.end(), MacroIDCompare);
-
-  for (unsigned i = 0, e = MacrosByID.size(); i != e; ++i) {
-    MacroInfo &MI = *MacrosByID[i].second;
-    // Ignore computed macros like __LINE__ and friends.
-    if (MI.isBuiltinMacro()) continue;
-
-    PrintMacroDefinition(*MacrosByID[i].first, MI, PP, *OS);
-    *OS << '\n';
-  }
-}
-
-/// DoPrintPreprocessedInput - This implements -E mode.
-///
-void clang::DoPrintPreprocessedInput(Preprocessor &PP, raw_ostream *OS,
-                                     const PreprocessorOutputOptions &Opts) {
-  // Show macros with no output is handled specially.
-  if (!Opts.ShowCPP) {
-    assert(Opts.ShowMacros && "Not yet implemented!");
-    DoPrintMacros(PP, OS);
-    return;
-  }
-
-  // Inform the preprocessor whether we want it to retain comments or not, due
-  // to -C or -CC.
-  PP.SetCommentRetentionState(Opts.ShowComments, Opts.ShowMacroComments);
-
-  PrintPPOutputPPCallbacks *Callbacks = new PrintPPOutputPPCallbacks(
-      PP, *OS, !Opts.ShowLineMarkers, Opts.ShowMacros,
-      Opts.ShowIncludeDirectives, Opts.UseLineDirectives);
-
-  // Expand macros in pragmas with -fms-extensions.  The assumption is that
-  // the majority of pragmas in such a file will be Microsoft pragmas.
-  // Remember the handlers we will add so that we can remove them later.
-  std::unique_ptr<UnknownPragmaHandler> MicrosoftExtHandler(
-      new UnknownPragmaHandler(
-          "#pragma", Callbacks,
-          /*RequireTokenExpansion=*/PP.getLangOpts().MicrosoftExt));
-
-  std::unique_ptr<UnknownPragmaHandler> GCCHandler(new UnknownPragmaHandler(
-      "#pragma GCC", Callbacks,
-      /*RequireTokenExpansion=*/PP.getLangOpts().MicrosoftExt));
-
-  std::unique_ptr<UnknownPragmaHandler> ClangHandler(new UnknownPragmaHandler(
-      "#pragma clang", Callbacks,
-      /*RequireTokenExpansion=*/PP.getLangOpts().MicrosoftExt));
-
-  PP.AddPragmaHandler(MicrosoftExtHandler.get());
-  PP.AddPragmaHandler("GCC", GCCHandler.get());
-  PP.AddPragmaHandler("clang", ClangHandler.get());
-
-  // The tokens after pragma omp need to be expanded.
-  //
-  //  OpenMP [2.1, Directive format]
-  //  Preprocessing tokens following the #pragma omp are subject to macro
-  //  replacement.
-  std::unique_ptr<UnknownPragmaHandler> OpenMPHandler(
-      new UnknownPragmaHandler("#pragma omp", Callbacks,
-                               /*RequireTokenExpansion=*/true));
-  PP.AddPragmaHandler("omp", OpenMPHandler.get());
-
-  PP.addPPCallbacks(std::unique_ptr<PPCallbacks>(Callbacks));
-
-  // After we have configured the preprocessor, enter the main file.
-  PP.EnterMainSourceFile();
-
-  // Consume all of the tokens that come from the predefines buffer.  Those
-  // should not be emitted into the output and are guaranteed to be at the
-  // start.
-  const SourceManager &SourceMgr = PP.getSourceManager();
-  Token Tok;
-  do {
-    PP.Lex(Tok);
-    if (Tok.is(tok::eof) || !Tok.getLocation().isFileID())
-      break;
-
-    PresumedLoc PLoc = SourceMgr.getPresumedLoc(Tok.getLocation());
-    if (PLoc.isInvalid())
-      break;
-
-    if (strcmp(PLoc.getFilename(), "<built-in>"))
-      break;
-  } while (true);
-
-  // Read all the preprocessed tokens, printing them out to the stream.
-  PrintPreprocessedTokens(PP, Tok, Callbacks, *OS);
-  *OS << '\n';
-
-  // Remove the handlers we just added to leave the preprocessor in a sane state
-  // so that it can be reused (for example by a clang::Parser instance).
-  PP.RemovePragmaHandler(MicrosoftExtHandler.get());
-  PP.RemovePragmaHandler("GCC", GCCHandler.get());
-  PP.RemovePragmaHandler("clang", ClangHandler.get());
-  PP.RemovePragmaHandler("omp", OpenMPHandler.get());
-}