Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 5940 deletions

diff --git a/gnu/llvm/lib/MC/MCParser/AsmParser.cpp b/gnu/llvm/lib/MC/MCParser/AsmParser.cpp
deleted file mode 100644
index ca8dd2d51a2..00000000000
--- a/gnu/llvm/lib/MC/MCParser/AsmParser.cpp
+++ /dev/null
@@ -1,5940 +0,0 @@
-//===- AsmParser.cpp - Parser for Assembly Files --------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class implements the parser for assembly files.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/APFloat.h"
-#include "llvm/ADT/APInt.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/None.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/BinaryFormat/Dwarf.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCCodeView.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCDirectives.h"
-#include "llvm/MC/MCDwarf.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCInstrDesc.h"
-#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCParser/AsmCond.h"
-#include "llvm/MC/MCParser/AsmLexer.h"
-#include "llvm/MC/MCParser/MCAsmLexer.h"
-#include "llvm/MC/MCParser/MCAsmParser.h"
-#include "llvm/MC/MCParser/MCAsmParserExtension.h"
-#include "llvm/MC/MCParser/MCAsmParserUtils.h"
-#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
-#include "llvm/MC/MCParser/MCTargetAsmParser.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCSection.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCTargetOptions.h"
-#include "llvm/MC/MCValue.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MD5.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/SMLoc.h"
-#include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <cassert>
-#include <cctype>
-#include <climits>
-#include <cstddef>
-#include <cstdint>
-#include <deque>
-#include <memory>
-#include <sstream>
-#include <string>
-#include <tuple>
-#include <utility>
-#include <vector>
-
-using namespace llvm;
-
-MCAsmParserSemaCallback::~MCAsmParserSemaCallback() = default;
-
-static cl::opt<unsigned> AsmMacroMaxNestingDepth(
-     "asm-macro-max-nesting-depth", cl::init(20), cl::Hidden,
-     cl::desc("The maximum nesting depth allowed for assembly macros."));
-
-namespace {
-
-/// Helper types for tracking macro definitions.
-typedef std::vector<AsmToken> MCAsmMacroArgument;
-typedef std::vector<MCAsmMacroArgument> MCAsmMacroArguments;
-
-/// Helper class for storing information about an active macro
-/// instantiation.
-struct MacroInstantiation {
-  /// The location of the instantiation.
-  SMLoc InstantiationLoc;
-
-  /// The buffer where parsing should resume upon instantiation completion.
-  int ExitBuffer;
-
-  /// The location where parsing should resume upon instantiation completion.
-  SMLoc ExitLoc;
-
-  /// The depth of TheCondStack at the start of the instantiation.
-  size_t CondStackDepth;
-
-public:
-  MacroInstantiation(SMLoc IL, int EB, SMLoc EL, size_t CondStackDepth);
-};
-
-struct ParseStatementInfo {
-  /// The parsed operands from the last parsed statement.
-  SmallVector<std::unique_ptr<MCParsedAsmOperand>, 8> ParsedOperands;
-
-  /// The opcode from the last parsed instruction.
-  unsigned Opcode = ~0U;
-
-  /// Was there an error parsing the inline assembly?
-  bool ParseError = false;
-
-  SmallVectorImpl<AsmRewrite> *AsmRewrites = nullptr;
-
-  ParseStatementInfo() = delete;
-  ParseStatementInfo(SmallVectorImpl<AsmRewrite> *rewrites)
-    : AsmRewrites(rewrites) {}
-};
-
-/// The concrete assembly parser instance.
-class AsmParser : public MCAsmParser {
-private:
-  AsmLexer Lexer;
-  MCContext &Ctx;
-  MCStreamer &Out;
-  const MCAsmInfo &MAI;
-  SourceMgr &SrcMgr;
-  SourceMgr::DiagHandlerTy SavedDiagHandler;
-  void *SavedDiagContext;
-  std::unique_ptr<MCAsmParserExtension> PlatformParser;
-
-  /// This is the current buffer index we're lexing from as managed by the
-  /// SourceMgr object.
-  unsigned CurBuffer;
-
-  AsmCond TheCondState;
-  std::vector<AsmCond> TheCondStack;
-
-  /// maps directive names to handler methods in parser
-  /// extensions. Extensions register themselves in this map by calling
-  /// addDirectiveHandler.
-  StringMap<ExtensionDirectiveHandler> ExtensionDirectiveMap;
-
-  /// Stack of active macro instantiations.
-  std::vector<MacroInstantiation*> ActiveMacros;
-
-  /// List of bodies of anonymous macros.
-  std::deque<MCAsmMacro> MacroLikeBodies;
-
-  /// Boolean tracking whether macro substitution is enabled.
-  unsigned MacrosEnabledFlag : 1;
-
-  /// Keeps track of how many .macro's have been instantiated.
-  unsigned NumOfMacroInstantiations;
-
-  /// The values from the last parsed cpp hash file line comment if any.
-  struct CppHashInfoTy {
-    StringRef Filename;
-    int64_t LineNumber = 0;
-    SMLoc Loc;
-    unsigned Buf = 0;
-  };
-  CppHashInfoTy CppHashInfo;
-
-  /// List of forward directional labels for diagnosis at the end.
-  SmallVector<std::tuple<SMLoc, CppHashInfoTy, MCSymbol *>, 4> DirLabels;
-
-  /// AssemblerDialect. ~OU means unset value and use value provided by MAI.
-  unsigned AssemblerDialect = ~0U;
-
-  /// is Darwin compatibility enabled?
-  bool IsDarwin = false;
-
-  /// Are we parsing ms-style inline assembly?
-  bool ParsingInlineAsm = false;
-
-  /// Did we already inform the user about inconsistent MD5 usage?
-  bool ReportedInconsistentMD5 = false;
-
-  // Is alt macro mode enabled.
-  bool AltMacroMode = false;
-
-public:
-  AsmParser(SourceMgr &SM, MCContext &Ctx, MCStreamer &Out,
-            const MCAsmInfo &MAI, unsigned CB);
-  AsmParser(const AsmParser &) = delete;
-  AsmParser &operator=(const AsmParser &) = delete;
-  ~AsmParser() override;
-
-  bool Run(bool NoInitialTextSection, bool NoFinalize = false) override;
-
-  void addDirectiveHandler(StringRef Directive,
-                           ExtensionDirectiveHandler Handler) override {
-    ExtensionDirectiveMap[Directive] = Handler;
-  }
-
-  void addAliasForDirective(StringRef Directive, StringRef Alias) override {
-    DirectiveKindMap[Directive] = DirectiveKindMap[Alias];
-  }
-
-  /// @name MCAsmParser Interface
-  /// {
-
-  SourceMgr &getSourceManager() override { return SrcMgr; }
-  MCAsmLexer &getLexer() override { return Lexer; }
-  MCContext &getContext() override { return Ctx; }
-  MCStreamer &getStreamer() override { return Out; }
-
-  CodeViewContext &getCVContext() { return Ctx.getCVContext(); }
-
-  unsigned getAssemblerDialect() override {
-    if (AssemblerDialect == ~0U)
-      return MAI.getAssemblerDialect();
-    else
-      return AssemblerDialect;
-  }
-  void setAssemblerDialect(unsigned i) override {
-    AssemblerDialect = i;
-  }
-
-  void Note(SMLoc L, const Twine &Msg, SMRange Range = None) override;
-  bool Warning(SMLoc L, const Twine &Msg, SMRange Range = None) override;
-  bool printError(SMLoc L, const Twine &Msg, SMRange Range = None) override;
-
-  const AsmToken &Lex() override;
-
-  void setParsingInlineAsm(bool V) override {
-    ParsingInlineAsm = V;
-    // When parsing MS inline asm, we must lex 0b1101 and 0ABCH as binary and
-    // hex integer literals.
-    Lexer.setLexMasmIntegers(V);
-  }
-  bool isParsingInlineAsm() override { return ParsingInlineAsm; }
-
-  bool parseMSInlineAsm(void *AsmLoc, std::string &AsmString,
-                        unsigned &NumOutputs, unsigned &NumInputs,
-                        SmallVectorImpl<std::pair<void *,bool>> &OpDecls,
-                        SmallVectorImpl<std::string> &Constraints,
-                        SmallVectorImpl<std::string> &Clobbers,
-                        const MCInstrInfo *MII, const MCInstPrinter *IP,
-                        MCAsmParserSemaCallback &SI) override;
-
-  bool parseExpression(const MCExpr *&Res);
-  bool parseExpression(const MCExpr *&Res, SMLoc &EndLoc) override;
-  bool parsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) override;
-  bool parseParenExpression(const MCExpr *&Res, SMLoc &EndLoc) override;
-  bool parseParenExprOfDepth(unsigned ParenDepth, const MCExpr *&Res,
-                             SMLoc &EndLoc) override;
-  bool parseAbsoluteExpression(int64_t &Res) override;
-
-  /// Parse a floating point expression using the float \p Semantics
-  /// and set \p Res to the value.
-  bool parseRealValue(const fltSemantics &Semantics, APInt &Res);
-
-  /// Parse an identifier or string (as a quoted identifier)
-  /// and set \p Res to the identifier contents.
-  bool parseIdentifier(StringRef &Res) override;
-  void eatToEndOfStatement() override;
-
-  bool checkForValidSection() override;
-
-  /// }
-
-private:
-  bool parseStatement(ParseStatementInfo &Info,
-                      MCAsmParserSemaCallback *SI);
-  bool parseCurlyBlockScope(SmallVectorImpl<AsmRewrite>& AsmStrRewrites);
-  bool parseCppHashLineFilenameComment(SMLoc L);
-
-  void checkForBadMacro(SMLoc DirectiveLoc, StringRef Name, StringRef Body,
-                        ArrayRef<MCAsmMacroParameter> Parameters);
-  bool expandMacro(raw_svector_ostream &OS, StringRef Body,
-                   ArrayRef<MCAsmMacroParameter> Parameters,
-                   ArrayRef<MCAsmMacroArgument> A, bool EnableAtPseudoVariable,
-                   SMLoc L);
-
-  /// Are macros enabled in the parser?
-  bool areMacrosEnabled() {return MacrosEnabledFlag;}
-
-  /// Control a flag in the parser that enables or disables macros.
-  void setMacrosEnabled(bool Flag) {MacrosEnabledFlag = Flag;}
-
-  /// Are we inside a macro instantiation?
-  bool isInsideMacroInstantiation() {return !ActiveMacros.empty();}
-
-  /// Handle entry to macro instantiation.
-  ///
-  /// \param M The macro.
-  /// \param NameLoc Instantiation location.
-  bool handleMacroEntry(const MCAsmMacro *M, SMLoc NameLoc);
-
-  /// Handle exit from macro instantiation.
-  void handleMacroExit();
-
-  /// Extract AsmTokens for a macro argument.
-  bool parseMacroArgument(MCAsmMacroArgument &MA, bool Vararg);
-
-  /// Parse all macro arguments for a given macro.
-  bool parseMacroArguments(const MCAsmMacro *M, MCAsmMacroArguments &A);
-
-  void printMacroInstantiations();
-  void printMessage(SMLoc Loc, SourceMgr::DiagKind Kind, const Twine &Msg,
-                    SMRange Range = None) const {
-    ArrayRef<SMRange> Ranges(Range);
-    SrcMgr.PrintMessage(Loc, Kind, Msg, Ranges);
-  }
-  static void DiagHandler(const SMDiagnostic &Diag, void *Context);
-
-  /// Should we emit DWARF describing this assembler source?  (Returns false if
-  /// the source has .file directives, which means we don't want to generate
-  /// info describing the assembler source itself.)
-  bool enabledGenDwarfForAssembly();
-
-  /// Enter the specified file. This returns true on failure.
-  bool enterIncludeFile(const std::string &Filename);
-
-  /// Process the specified file for the .incbin directive.
-  /// This returns true on failure.
-  bool processIncbinFile(const std::string &Filename, int64_t Skip = 0,
-                         const MCExpr *Count = nullptr, SMLoc Loc = SMLoc());
-
-  /// Reset the current lexer position to that given by \p Loc. The
-  /// current token is not set; clients should ensure Lex() is called
-  /// subsequently.
-  ///
-  /// \param InBuffer If not 0, should be the known buffer id that contains the
-  /// location.
-  void jumpToLoc(SMLoc Loc, unsigned InBuffer = 0);
-
-  /// Parse up to the end of statement and a return the contents from the
-  /// current token until the end of the statement; the current token on exit
-  /// will be either the EndOfStatement or EOF.
-  StringRef parseStringToEndOfStatement() override;
-
-  /// Parse until the end of a statement or a comma is encountered,
-  /// return the contents from the current token up to the end or comma.
-  StringRef parseStringToComma();
-
-  bool parseAssignment(StringRef Name, bool allow_redef,
-                       bool NoDeadStrip = false);
-
-  unsigned getBinOpPrecedence(AsmToken::TokenKind K,
-                              MCBinaryExpr::Opcode &Kind);
-
-  bool parseBinOpRHS(unsigned Precedence, const MCExpr *&Res, SMLoc &EndLoc);
-  bool parseParenExpr(const MCExpr *&Res, SMLoc &EndLoc);
-  bool parseBracketExpr(const MCExpr *&Res, SMLoc &EndLoc);
-
-  bool parseRegisterOrRegisterNumber(int64_t &Register, SMLoc DirectiveLoc);
-
-  bool parseCVFunctionId(int64_t &FunctionId, StringRef DirectiveName);
-  bool parseCVFileId(int64_t &FileId, StringRef DirectiveName);
-
-  // Generic (target and platform independent) directive parsing.
-  enum DirectiveKind {
-    DK_NO_DIRECTIVE, // Placeholder
-    DK_SET,
-    DK_EQU,
-    DK_EQUIV,
-    DK_ASCII,
-    DK_ASCIZ,
-    DK_STRING,
-    DK_BYTE,
-    DK_SHORT,
-    DK_RELOC,
-    DK_VALUE,
-    DK_2BYTE,
-    DK_LONG,
-    DK_INT,
-    DK_4BYTE,
-    DK_QUAD,
-    DK_8BYTE,
-    DK_OCTA,
-    DK_DC,
-    DK_DC_A,
-    DK_DC_B,
-    DK_DC_D,
-    DK_DC_L,
-    DK_DC_S,
-    DK_DC_W,
-    DK_DC_X,
-    DK_DCB,
-    DK_DCB_B,
-    DK_DCB_D,
-    DK_DCB_L,
-    DK_DCB_S,
-    DK_DCB_W,
-    DK_DCB_X,
-    DK_DS,
-    DK_DS_B,
-    DK_DS_D,
-    DK_DS_L,
-    DK_DS_P,
-    DK_DS_S,
-    DK_DS_W,
-    DK_DS_X,
-    DK_SINGLE,
-    DK_FLOAT,
-    DK_DOUBLE,
-    DK_ALIGN,
-    DK_ALIGN32,
-    DK_BALIGN,
-    DK_BALIGNW,
-    DK_BALIGNL,
-    DK_P2ALIGN,
-    DK_P2ALIGNW,
-    DK_P2ALIGNL,
-    DK_ORG,
-    DK_FILL,
-    DK_ENDR,
-    DK_BUNDLE_ALIGN_MODE,
-    DK_BUNDLE_LOCK,
-    DK_BUNDLE_UNLOCK,
-    DK_ZERO,
-    DK_EXTERN,
-    DK_GLOBL,
-    DK_GLOBAL,
-    DK_LAZY_REFERENCE,
-    DK_NO_DEAD_STRIP,
-    DK_SYMBOL_RESOLVER,
-    DK_PRIVATE_EXTERN,
-    DK_REFERENCE,
-    DK_WEAK_DEFINITION,
-    DK_WEAK_REFERENCE,
-    DK_WEAK_DEF_CAN_BE_HIDDEN,
-    DK_COMM,
-    DK_COMMON,
-    DK_LCOMM,
-    DK_ABORT,
-    DK_INCLUDE,
-    DK_INCBIN,
-    DK_CODE16,
-    DK_CODE16GCC,
-    DK_REPT,
-    DK_IRP,
-    DK_IRPC,
-    DK_IF,
-    DK_IFEQ,
-    DK_IFGE,
-    DK_IFGT,
-    DK_IFLE,
-    DK_IFLT,
-    DK_IFNE,
-    DK_IFB,
-    DK_IFNB,
-    DK_IFC,
-    DK_IFEQS,
-    DK_IFNC,
-    DK_IFNES,
-    DK_IFDEF,
-    DK_IFNDEF,
-    DK_IFNOTDEF,
-    DK_ELSEIF,
-    DK_ELSE,
-    DK_ENDIF,
-    DK_SPACE,
-    DK_SKIP,
-    DK_FILE,
-    DK_LINE,
-    DK_LOC,
-    DK_STABS,
-    DK_CV_FILE,
-    DK_CV_FUNC_ID,
-    DK_CV_INLINE_SITE_ID,
-    DK_CV_LOC,
-    DK_CV_LINETABLE,
-    DK_CV_INLINE_LINETABLE,
-    DK_CV_DEF_RANGE,
-    DK_CV_STRINGTABLE,
-    DK_CV_STRING,
-    DK_CV_FILECHECKSUMS,
-    DK_CV_FILECHECKSUM_OFFSET,
-    DK_CV_FPO_DATA,
-    DK_CFI_SECTIONS,
-    DK_CFI_STARTPROC,
-    DK_CFI_ENDPROC,
-    DK_CFI_DEF_CFA,
-    DK_CFI_DEF_CFA_OFFSET,
-    DK_CFI_ADJUST_CFA_OFFSET,
-    DK_CFI_DEF_CFA_REGISTER,
-    DK_CFI_OFFSET,
-    DK_CFI_REL_OFFSET,
-    DK_CFI_PERSONALITY,
-    DK_CFI_LSDA,
-    DK_CFI_REMEMBER_STATE,
-    DK_CFI_RESTORE_STATE,
-    DK_CFI_SAME_VALUE,
-    DK_CFI_RESTORE,
-    DK_CFI_ESCAPE,
-    DK_CFI_RETURN_COLUMN,
-    DK_CFI_SIGNAL_FRAME,
-    DK_CFI_UNDEFINED,
-    DK_CFI_REGISTER,
-    DK_CFI_WINDOW_SAVE,
-    DK_CFI_B_KEY_FRAME,
-    DK_MACROS_ON,
-    DK_MACROS_OFF,
-    DK_ALTMACRO,
-    DK_NOALTMACRO,
-    DK_MACRO,
-    DK_EXITM,
-    DK_ENDM,
-    DK_ENDMACRO,
-    DK_PURGEM,
-    DK_SLEB128,
-    DK_ULEB128,
-    DK_ERR,
-    DK_ERROR,
-    DK_WARNING,
-    DK_PRINT,
-    DK_ADDRSIG,
-    DK_ADDRSIG_SYM,
-    DK_END
-  };
-
-  /// Maps directive name --> DirectiveKind enum, for
-  /// directives parsed by this class.
-  StringMap<DirectiveKind> DirectiveKindMap;
-
-  // ".ascii", ".asciz", ".string"
-  bool parseDirectiveAscii(StringRef IDVal, bool ZeroTerminated);
-  bool parseDirectiveReloc(SMLoc DirectiveLoc); // ".reloc"
-  bool parseDirectiveValue(StringRef IDVal,
-                           unsigned Size);       // ".byte", ".long", ...
-  bool parseDirectiveOctaValue(StringRef IDVal); // ".octa", ...
-  bool parseDirectiveRealValue(StringRef IDVal,
-                               const fltSemantics &); // ".single", ...
-  bool parseDirectiveFill(); // ".fill"
-  bool parseDirectiveZero(); // ".zero"
-  // ".set", ".equ", ".equiv"
-  bool parseDirectiveSet(StringRef IDVal, bool allow_redef);
-  bool parseDirectiveOrg(); // ".org"
-  // ".align{,32}", ".p2align{,w,l}"
-  bool parseDirectiveAlign(bool IsPow2, unsigned ValueSize);
-
-  // ".file", ".line", ".loc", ".stabs"
-  bool parseDirectiveFile(SMLoc DirectiveLoc);
-  bool parseDirectiveLine();
-  bool parseDirectiveLoc();
-  bool parseDirectiveStabs();
-
-  // ".cv_file", ".cv_func_id", ".cv_inline_site_id", ".cv_loc", ".cv_linetable",
-  // ".cv_inline_linetable", ".cv_def_range", ".cv_string"
-  bool parseDirectiveCVFile();
-  bool parseDirectiveCVFuncId();
-  bool parseDirectiveCVInlineSiteId();
-  bool parseDirectiveCVLoc();
-  bool parseDirectiveCVLinetable();
-  bool parseDirectiveCVInlineLinetable();
-  bool parseDirectiveCVDefRange();
-  bool parseDirectiveCVString();
-  bool parseDirectiveCVStringTable();
-  bool parseDirectiveCVFileChecksums();
-  bool parseDirectiveCVFileChecksumOffset();
-  bool parseDirectiveCVFPOData();
-
-  // .cfi directives
-  bool parseDirectiveCFIRegister(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIWindowSave();
-  bool parseDirectiveCFISections();
-  bool parseDirectiveCFIStartProc();
-  bool parseDirectiveCFIEndProc();
-  bool parseDirectiveCFIDefCfaOffset();
-  bool parseDirectiveCFIDefCfa(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIAdjustCfaOffset();
-  bool parseDirectiveCFIDefCfaRegister(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIOffset(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIRelOffset(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIPersonalityOrLsda(bool IsPersonality);
-  bool parseDirectiveCFIRememberState();
-  bool parseDirectiveCFIRestoreState();
-  bool parseDirectiveCFISameValue(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIRestore(SMLoc DirectiveLoc);
-  bool parseDirectiveCFIEscape();
-  bool parseDirectiveCFIReturnColumn(SMLoc DirectiveLoc);
-  bool parseDirectiveCFISignalFrame();
-  bool parseDirectiveCFIUndefined(SMLoc DirectiveLoc);
-
-  // macro directives
-  bool parseDirectivePurgeMacro(SMLoc DirectiveLoc);
-  bool parseDirectiveExitMacro(StringRef Directive);
-  bool parseDirectiveEndMacro(StringRef Directive);
-  bool parseDirectiveMacro(SMLoc DirectiveLoc);
-  bool parseDirectiveMacrosOnOff(StringRef Directive);
-  // alternate macro mode directives
-  bool parseDirectiveAltmacro(StringRef Directive);
-  // ".bundle_align_mode"
-  bool parseDirectiveBundleAlignMode();
-  // ".bundle_lock"
-  bool parseDirectiveBundleLock();
-  // ".bundle_unlock"
-  bool parseDirectiveBundleUnlock();
-
-  // ".space", ".skip"
-  bool parseDirectiveSpace(StringRef IDVal);
-
-  // ".dcb"
-  bool parseDirectiveDCB(StringRef IDVal, unsigned Size);
-  bool parseDirectiveRealDCB(StringRef IDVal, const fltSemantics &);
-  // ".ds"
-  bool parseDirectiveDS(StringRef IDVal, unsigned Size);
-
-  // .sleb128 (Signed=true) and .uleb128 (Signed=false)
-  bool parseDirectiveLEB128(bool Signed);
-
-  /// Parse a directive like ".globl" which
-  /// accepts a single symbol (which should be a label or an external).
-  bool parseDirectiveSymbolAttribute(MCSymbolAttr Attr);
-
-  bool parseDirectiveComm(bool IsLocal); // ".comm" and ".lcomm"
-
-  bool parseDirectiveAbort(); // ".abort"
-  bool parseDirectiveInclude(); // ".include"
-  bool parseDirectiveIncbin(); // ".incbin"
-
-  // ".if", ".ifeq", ".ifge", ".ifgt" , ".ifle", ".iflt" or ".ifne"
-  bool parseDirectiveIf(SMLoc DirectiveLoc, DirectiveKind DirKind);
-  // ".ifb" or ".ifnb", depending on ExpectBlank.
-  bool parseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank);
-  // ".ifc" or ".ifnc", depending on ExpectEqual.
-  bool parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual);
-  // ".ifeqs" or ".ifnes", depending on ExpectEqual.
-  bool parseDirectiveIfeqs(SMLoc DirectiveLoc, bool ExpectEqual);
-  // ".ifdef" or ".ifndef", depending on expect_defined
-  bool parseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined);
-  bool parseDirectiveElseIf(SMLoc DirectiveLoc); // ".elseif"
-  bool parseDirectiveElse(SMLoc DirectiveLoc); // ".else"
-  bool parseDirectiveEndIf(SMLoc DirectiveLoc); // .endif
-  bool parseEscapedString(std::string &Data) override;
-
-  const MCExpr *applyModifierToExpr(const MCExpr *E,
-                                    MCSymbolRefExpr::VariantKind Variant);
-
-  // Macro-like directives
-  MCAsmMacro *parseMacroLikeBody(SMLoc DirectiveLoc);
-  void instantiateMacroLikeBody(MCAsmMacro *M, SMLoc DirectiveLoc,
-                                raw_svector_ostream &OS);
-  bool parseDirectiveRept(SMLoc DirectiveLoc, StringRef Directive);
-  bool parseDirectiveIrp(SMLoc DirectiveLoc);  // ".irp"
-  bool parseDirectiveIrpc(SMLoc DirectiveLoc); // ".irpc"
-  bool parseDirectiveEndr(SMLoc DirectiveLoc); // ".endr"
-
-  // "_emit" or "__emit"
-  bool parseDirectiveMSEmit(SMLoc DirectiveLoc, ParseStatementInfo &Info,
-                            size_t Len);
-
-  // "align"
-  bool parseDirectiveMSAlign(SMLoc DirectiveLoc, ParseStatementInfo &Info);
-
-  // "end"
-  bool parseDirectiveEnd(SMLoc DirectiveLoc);
-
-  // ".err" or ".error"
-  bool parseDirectiveError(SMLoc DirectiveLoc, bool WithMessage);
-
-  // ".warning"
-  bool parseDirectiveWarning(SMLoc DirectiveLoc);
-
-  // .print <double-quotes-string>
-  bool parseDirectivePrint(SMLoc DirectiveLoc);
-
-  // Directives to support address-significance tables.
-  bool parseDirectiveAddrsig();
-  bool parseDirectiveAddrsigSym();
-
-  void initializeDirectiveKindMap();
-};
-
-} // end anonymous namespace
-
-namespace llvm {
-
-extern MCAsmParserExtension *createDarwinAsmParser();
-extern MCAsmParserExtension *createELFAsmParser();
-extern MCAsmParserExtension *createCOFFAsmParser();
-extern MCAsmParserExtension *createWasmAsmParser();
-
-} // end namespace llvm
-
-enum { DEFAULT_ADDRSPACE = 0 };
-
-AsmParser::AsmParser(SourceMgr &SM, MCContext &Ctx, MCStreamer &Out,
-                     const MCAsmInfo &MAI, unsigned CB = 0)
-    : Lexer(MAI), Ctx(Ctx), Out(Out), MAI(MAI), SrcMgr(SM),
-      CurBuffer(CB ? CB : SM.getMainFileID()), MacrosEnabledFlag(true) {
-  HadError = false;
-  // Save the old handler.
-  SavedDiagHandler = SrcMgr.getDiagHandler();
-  SavedDiagContext = SrcMgr.getDiagContext();
-  // Set our own handler which calls the saved handler.
-  SrcMgr.setDiagHandler(DiagHandler, this);
-  Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer)->getBuffer());
-
-  // Initialize the platform / file format parser.
-  switch (Ctx.getObjectFileInfo()->getObjectFileType()) {
-  case MCObjectFileInfo::IsCOFF:
-    PlatformParser.reset(createCOFFAsmParser());
-    break;
-  case MCObjectFileInfo::IsMachO:
-    PlatformParser.reset(createDarwinAsmParser());
-    IsDarwin = true;
-    break;
-  case MCObjectFileInfo::IsELF:
-    PlatformParser.reset(createELFAsmParser());
-    break;
-  case MCObjectFileInfo::IsWasm:
-    PlatformParser.reset(createWasmAsmParser());
-    break;
-  }
-
-  PlatformParser->Initialize(*this);
-  initializeDirectiveKindMap();
-
-  NumOfMacroInstantiations = 0;
-}
-
-AsmParser::~AsmParser() {
-  assert((HadError || ActiveMacros.empty()) &&
-         "Unexpected active macro instantiation!");
-
-  // Restore the saved diagnostics handler and context for use during
-  // finalization.
-  SrcMgr.setDiagHandler(SavedDiagHandler, SavedDiagContext);
-}
-
-void AsmParser::printMacroInstantiations() {
-  // Print the active macro instantiation stack.
-  for (std::vector<MacroInstantiation *>::const_reverse_iterator
-           it = ActiveMacros.rbegin(),
-           ie = ActiveMacros.rend();
-       it != ie; ++it)
-    printMessage((*it)->InstantiationLoc, SourceMgr::DK_Note,
-                 "while in macro instantiation");
-}
-
-void AsmParser::Note(SMLoc L, const Twine &Msg, SMRange Range) {
-  printPendingErrors();
-  printMessage(L, SourceMgr::DK_Note, Msg, Range);
-  printMacroInstantiations();
-}
-
-bool AsmParser::Warning(SMLoc L, const Twine &Msg, SMRange Range) {
-  if(getTargetParser().getTargetOptions().MCNoWarn)
-    return false;
-  if (getTargetParser().getTargetOptions().MCFatalWarnings)
-    return Error(L, Msg, Range);
-  printMessage(L, SourceMgr::DK_Warning, Msg, Range);
-  printMacroInstantiations();
-  return false;
-}
-
-bool AsmParser::printError(SMLoc L, const Twine &Msg, SMRange Range) {
-  HadError = true;
-  printMessage(L, SourceMgr::DK_Error, Msg, Range);
-  printMacroInstantiations();
-  return true;
-}
-
-bool AsmParser::enterIncludeFile(const std::string &Filename) {
-  std::string IncludedFile;
-  unsigned NewBuf =
-      SrcMgr.AddIncludeFile(Filename, Lexer.getLoc(), IncludedFile);
-  if (!NewBuf)
-    return true;
-
-  CurBuffer = NewBuf;
-  Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer)->getBuffer());
-  return false;
-}
-
-/// Process the specified .incbin file by searching for it in the include paths
-/// then just emitting the byte contents of the file to the streamer. This
-/// returns true on failure.
-bool AsmParser::processIncbinFile(const std::string &Filename, int64_t Skip,
-                                  const MCExpr *Count, SMLoc Loc) {
-  std::string IncludedFile;
-  unsigned NewBuf =
-      SrcMgr.AddIncludeFile(Filename, Lexer.getLoc(), IncludedFile);
-  if (!NewBuf)
-    return true;
-
-  // Pick up the bytes from the file and emit them.
-  StringRef Bytes = SrcMgr.getMemoryBuffer(NewBuf)->getBuffer();
-  Bytes = Bytes.drop_front(Skip);
-  if (Count) {
-    int64_t Res;
-    if (!Count->evaluateAsAbsolute(Res, getStreamer().getAssemblerPtr()))
-      return Error(Loc, "expected absolute expression");
-    if (Res < 0)
-      return Warning(Loc, "negative count has no effect");
-    Bytes = Bytes.take_front(Res);
-  }
-  getStreamer().EmitBytes(Bytes);
-  return false;
-}
-
-void AsmParser::jumpToLoc(SMLoc Loc, unsigned InBuffer) {
-  CurBuffer = InBuffer ? InBuffer : SrcMgr.FindBufferContainingLoc(Loc);
-  Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer)->getBuffer(),
-                  Loc.getPointer());
-}
-
-const AsmToken &AsmParser::Lex() {
-  if (Lexer.getTok().is(AsmToken::Error))
-    Error(Lexer.getErrLoc(), Lexer.getErr());
-
-  // if it's a end of statement with a comment in it
-  if (getTok().is(AsmToken::EndOfStatement)) {
-    // if this is a line comment output it.
-    if (!getTok().getString().empty() && getTok().getString().front() != '\n' &&
-        getTok().getString().front() != '\r' && MAI.preserveAsmComments())
-      Out.addExplicitComment(Twine(getTok().getString()));
-  }
-
-  const AsmToken *tok = &Lexer.Lex();
-
-  // Parse comments here to be deferred until end of next statement.
-  while (tok->is(AsmToken::Comment)) {
-    if (MAI.preserveAsmComments())
-      Out.addExplicitComment(Twine(tok->getString()));
-    tok = &Lexer.Lex();
-  }
-
-  if (tok->is(AsmToken::Eof)) {
-    // If this is the end of an included file, pop the parent file off the
-    // include stack.
-    SMLoc ParentIncludeLoc = SrcMgr.getParentIncludeLoc(CurBuffer);
-    if (ParentIncludeLoc != SMLoc()) {
-      jumpToLoc(ParentIncludeLoc);
-      return Lex();
-    }
-  }
-
-  return *tok;
-}
-
-bool AsmParser::enabledGenDwarfForAssembly() {
-  // Check whether the user specified -g.
-  if (!getContext().getGenDwarfForAssembly())
-    return false;
-  // If we haven't encountered any .file directives (which would imply that
-  // the assembler source was produced with debug info already) then emit one
-  // describing the assembler source file itself.
-  if (getContext().getGenDwarfFileNumber() == 0)
-    getContext().setGenDwarfFileNumber(getStreamer().EmitDwarfFileDirective(
-        0, StringRef(), getContext().getMainFileName()));
-  return true;
-}
-
-bool AsmParser::Run(bool NoInitialTextSection, bool NoFinalize) {
-  // Create the initial section, if requested.
-  if (!NoInitialTextSection)
-    Out.InitSections(false);
-
-  // Prime the lexer.
-  Lex();
-
-  HadError = false;
-  AsmCond StartingCondState = TheCondState;
-  SmallVector<AsmRewrite, 4> AsmStrRewrites;
-
-  // If we are generating dwarf for assembly source files save the initial text
-  // section.  (Don't use enabledGenDwarfForAssembly() here, as we aren't
-  // emitting any actual debug info yet and haven't had a chance to parse any
-  // embedded .file directives.)
-  if (getContext().getGenDwarfForAssembly()) {
-    MCSection *Sec = getStreamer().getCurrentSectionOnly();
-    if (!Sec->getBeginSymbol()) {
-      MCSymbol *SectionStartSym = getContext().createTempSymbol();
-      getStreamer().EmitLabel(SectionStartSym);
-      Sec->setBeginSymbol(SectionStartSym);
-    }
-    bool InsertResult = getContext().addGenDwarfSection(Sec);
-    assert(InsertResult && ".text section should not have debug info yet");
-    (void)InsertResult;
-  }
-
-  StringRef Filename = getContext().getMainFileName();
-  if (!Filename.empty() && (Filename.compare(StringRef("-")) != 0))
-    Out.EmitFileDirective(Filename);
-
-  // While we have input, parse each statement.
-  while (Lexer.isNot(AsmToken::Eof)) {
-    ParseStatementInfo Info(&AsmStrRewrites);
-    if (!parseStatement(Info, nullptr))
-      continue;
-
-    // If we have a Lexer Error we are on an Error Token. Load in Lexer Error
-    // for printing ErrMsg via Lex() only if no (presumably better) parser error
-    // exists.
-    if (!hasPendingError() && Lexer.getTok().is(AsmToken::Error)) {
-      Lex();
-    }
-
-    // parseStatement returned true so may need to emit an error.
-    printPendingErrors();
-
-    // Skipping to the next line if needed.
-    if (!getLexer().isAtStartOfStatement())
-      eatToEndOfStatement();
-  }
-
-  getTargetParser().onEndOfFile();
-  printPendingErrors();
-
-  // All errors should have been emitted.
-  assert(!hasPendingError() && "unexpected error from parseStatement");
-
-  getTargetParser().flushPendingInstructions(getStreamer());
-
-  if (TheCondState.TheCond != StartingCondState.TheCond ||
-      TheCondState.Ignore != StartingCondState.Ignore)
-    printError(getTok().getLoc(), "unmatched .ifs or .elses");
-  // Check to see there are no empty DwarfFile slots.
-  const auto &LineTables = getContext().getMCDwarfLineTables();
-  if (!LineTables.empty()) {
-    unsigned Index = 0;
-    for (const auto &File : LineTables.begin()->second.getMCDwarfFiles()) {
-      if (File.Name.empty() && Index != 0)
-        printError(getTok().getLoc(), "unassigned file number: " +
-                                          Twine(Index) +
-                                          " for .file directives");
-      ++Index;
-    }
-  }
-
-  // Check to see that all assembler local symbols were actually defined.
-  // Targets that don't do subsections via symbols may not want this, though,
-  // so conservatively exclude them. Only do this if we're finalizing, though,
-  // as otherwise we won't necessarilly have seen everything yet.
-  if (!NoFinalize) {
-    if (MAI.hasSubsectionsViaSymbols()) {
-      for (const auto &TableEntry : getContext().getSymbols()) {
-        MCSymbol *Sym = TableEntry.getValue();
-        // Variable symbols may not be marked as defined, so check those
-        // explicitly. If we know it's a variable, we have a definition for
-        // the purposes of this check.
-        if (Sym->isTemporary() && !Sym->isVariable() && !Sym->isDefined())
-          // FIXME: We would really like to refer back to where the symbol was
-          // first referenced for a source location. We need to add something
-          // to track that. Currently, we just point to the end of the file.
-          printError(getTok().getLoc(), "assembler local symbol '" +
-                                            Sym->getName() + "' not defined");
-      }
-    }
-
-    // Temporary symbols like the ones for directional jumps don't go in the
-    // symbol table. They also need to be diagnosed in all (final) cases.
-    for (std::tuple<SMLoc, CppHashInfoTy, MCSymbol *> &LocSym : DirLabels) {
-      if (std::get<2>(LocSym)->isUndefined()) {
-        // Reset the state of any "# line file" directives we've seen to the
-        // context as it was at the diagnostic site.
-        CppHashInfo = std::get<1>(LocSym);
-        printError(std::get<0>(LocSym), "directional label undefined");
-      }
-    }
-  }
-
-  // Finalize the output stream if there are no errors and if the client wants
-  // us to.
-  if (!HadError && !NoFinalize)
-    Out.Finish();
-
-  return HadError || getContext().hadError();
-}
-
-bool AsmParser::checkForValidSection() {
-  if (!ParsingInlineAsm && !getStreamer().getCurrentSectionOnly()) {
-    Out.InitSections(false);
-    return Error(getTok().getLoc(),
-                 "expected section directive before assembly directive");
-  }
-  return false;
-}
-
-/// Throw away the rest of the line for testing purposes.
-void AsmParser::eatToEndOfStatement() {
-  while (Lexer.isNot(AsmToken::EndOfStatement) && Lexer.isNot(AsmToken::Eof))
-    Lexer.Lex();
-
-  // Eat EOL.
-  if (Lexer.is(AsmToken::EndOfStatement))
-    Lexer.Lex();
-}
-
-StringRef AsmParser::parseStringToEndOfStatement() {
-  const char *Start = getTok().getLoc().getPointer();
-
-  while (Lexer.isNot(AsmToken::EndOfStatement) && Lexer.isNot(AsmToken::Eof))
-    Lexer.Lex();
-
-  const char *End = getTok().getLoc().getPointer();
-  return StringRef(Start, End - Start);
-}
-
-StringRef AsmParser::parseStringToComma() {
-  const char *Start = getTok().getLoc().getPointer();
-
-  while (Lexer.isNot(AsmToken::EndOfStatement) &&
-         Lexer.isNot(AsmToken::Comma) && Lexer.isNot(AsmToken::Eof))
-    Lexer.Lex();
-
-  const char *End = getTok().getLoc().getPointer();
-  return StringRef(Start, End - Start);
-}
-
-/// Parse a paren expression and return it.
-/// NOTE: This assumes the leading '(' has already been consumed.
-///
-/// parenexpr ::= expr)
-///
-bool AsmParser::parseParenExpr(const MCExpr *&Res, SMLoc &EndLoc) {
-  if (parseExpression(Res))
-    return true;
-  if (Lexer.isNot(AsmToken::RParen))
-    return TokError("expected ')' in parentheses expression");
-  EndLoc = Lexer.getTok().getEndLoc();
-  Lex();
-  return false;
-}
-
-/// Parse a bracket expression and return it.
-/// NOTE: This assumes the leading '[' has already been consumed.
-///
-/// bracketexpr ::= expr]
-///
-bool AsmParser::parseBracketExpr(const MCExpr *&Res, SMLoc &EndLoc) {
-  if (parseExpression(Res))
-    return true;
-  EndLoc = getTok().getEndLoc();
-  if (parseToken(AsmToken::RBrac, "expected ']' in brackets expression"))
-    return true;
-  return false;
-}
-
-/// Parse a primary expression and return it.
-///  primaryexpr ::= (parenexpr
-///  primaryexpr ::= symbol
-///  primaryexpr ::= number
-///  primaryexpr ::= '.'
-///  primaryexpr ::= ~,+,- primaryexpr
-bool AsmParser::parsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) {
-  SMLoc FirstTokenLoc = getLexer().getLoc();
-  AsmToken::TokenKind FirstTokenKind = Lexer.getKind();
-  switch (FirstTokenKind) {
-  default:
-    return TokError("unknown token in expression");
-  // If we have an error assume that we've already handled it.
-  case AsmToken::Error:
-    return true;
-  case AsmToken::Exclaim:
-    Lex(); // Eat the operator.
-    if (parsePrimaryExpr(Res, EndLoc))
-      return true;
-    Res = MCUnaryExpr::createLNot(Res, getContext(), FirstTokenLoc);
-    return false;
-  case AsmToken::Dollar:
-  case AsmToken::At:
-  case AsmToken::String:
-  case AsmToken::Identifier: {
-    StringRef Identifier;
-    if (parseIdentifier(Identifier)) {
-      // We may have failed but $ may be a valid token.
-      if (getTok().is(AsmToken::Dollar)) {
-        if (Lexer.getMAI().getDollarIsPC()) {
-          Lex();
-          // This is a '$' reference, which references the current PC.  Emit a
-          // temporary label to the streamer and refer to it.
-          MCSymbol *Sym = Ctx.createTempSymbol();
-          Out.EmitLabel(Sym);
-          Res = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_None,
-                                        getContext());
-          EndLoc = FirstTokenLoc;
-          return false;
-        }
-        return Error(FirstTokenLoc, "invalid token in expression");
-      }
-    }
-    // Parse symbol variant
-    std::pair<StringRef, StringRef> Split;
-    if (!MAI.useParensForSymbolVariant()) {
-      if (FirstTokenKind == AsmToken::String) {
-        if (Lexer.is(AsmToken::At)) {
-          Lex(); // eat @
-          SMLoc AtLoc = getLexer().getLoc();
-          StringRef VName;
-          if (parseIdentifier(VName))
-            return Error(AtLoc, "expected symbol variant after '@'");
-
-          Split = std::make_pair(Identifier, VName);
-        }
-      } else {
-        Split = Identifier.split('@');
-      }
-    } else if (Lexer.is(AsmToken::LParen)) {
-      Lex(); // eat '('.
-      StringRef VName;
-      parseIdentifier(VName);
-      // eat ')'.
-      if (parseToken(AsmToken::RParen,
-                     "unexpected token in variant, expected ')'"))
-        return true;
-      Split = std::make_pair(Identifier, VName);
-    }
-
-    EndLoc = SMLoc::getFromPointer(Identifier.end());
-
-    // This is a symbol reference.
-    StringRef SymbolName = Identifier;
-    if (SymbolName.empty())
-      return Error(getLexer().getLoc(), "expected a symbol reference");
-
-    MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
-
-    // Lookup the symbol variant if used.
-    if (!Split.second.empty()) {
-      Variant = MCSymbolRefExpr::getVariantKindForName(Split.second);
-      if (Variant != MCSymbolRefExpr::VK_Invalid) {
-        SymbolName = Split.first;
-      } else if (MAI.doesAllowAtInName() && !MAI.useParensForSymbolVariant()) {
-        Variant = MCSymbolRefExpr::VK_None;
-      } else {
-        return Error(SMLoc::getFromPointer(Split.second.begin()),
-                     "invalid variant '" + Split.second + "'");
-      }
-    }
-
-    MCSymbol *Sym = getContext().getOrCreateSymbol(SymbolName);
-
-    // If this is an absolute variable reference, substitute it now to preserve
-    // semantics in the face of reassignment.
-    if (Sym->isVariable()) {
-      auto V = Sym->getVariableValue(/*SetUsed*/ false);
-      bool DoInline = isa<MCConstantExpr>(V) && !Variant;
-      if (auto TV = dyn_cast<MCTargetExpr>(V))
-        DoInline = TV->inlineAssignedExpr();
-      if (DoInline) {
-        if (Variant)
-          return Error(EndLoc, "unexpected modifier on variable reference");
-        Res = Sym->getVariableValue(/*SetUsed*/ false);
-        return false;
-      }
-    }
-
-    // Otherwise create a symbol ref.
-    Res = MCSymbolRefExpr::create(Sym, Variant, getContext(), FirstTokenLoc);
-    return false;
-  }
-  case AsmToken::BigNum:
-    return TokError("literal value out of range for directive");
-  case AsmToken::Integer: {
-    SMLoc Loc = getTok().getLoc();
-    int64_t IntVal = getTok().getIntVal();
-    Res = MCConstantExpr::create(IntVal, getContext());
-    EndLoc = Lexer.getTok().getEndLoc();
-    Lex(); // Eat token.
-    // Look for 'b' or 'f' following an Integer as a directional label
-    if (Lexer.getKind() == AsmToken::Identifier) {
-      StringRef IDVal = getTok().getString();
-      // Lookup the symbol variant if used.
-      std::pair<StringRef, StringRef> Split = IDVal.split('@');
-      MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
-      if (Split.first.size() != IDVal.size()) {
-        Variant = MCSymbolRefExpr::getVariantKindForName(Split.second);
-        if (Variant == MCSymbolRefExpr::VK_Invalid)
-          return TokError("invalid variant '" + Split.second + "'");
-        IDVal = Split.first;
-      }
-      if (IDVal == "f" || IDVal == "b") {
-        MCSymbol *Sym =
-            Ctx.getDirectionalLocalSymbol(IntVal, IDVal == "b");
-        Res = MCSymbolRefExpr::create(Sym, Variant, getContext());
-        if (IDVal == "b" && Sym->isUndefined())
-          return Error(Loc, "directional label undefined");
-        DirLabels.push_back(std::make_tuple(Loc, CppHashInfo, Sym));
-        EndLoc = Lexer.getTok().getEndLoc();
-        Lex(); // Eat identifier.
-      }
-    }
-    return false;
-  }
-  case AsmToken::Real: {
-    APFloat RealVal(APFloat::IEEEdouble(), getTok().getString());
-    uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
-    Res = MCConstantExpr::create(IntVal, getContext());
-    EndLoc = Lexer.getTok().getEndLoc();
-    Lex(); // Eat token.
-    return false;
-  }
-  case AsmToken::Dot: {
-    // This is a '.' reference, which references the current PC.  Emit a
-    // temporary label to the streamer and refer to it.
-    MCSymbol *Sym = Ctx.createTempSymbol();
-    Out.EmitLabel(Sym);
-    Res = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_None, getContext());
-    EndLoc = Lexer.getTok().getEndLoc();
-    Lex(); // Eat identifier.
-    return false;
-  }
-  case AsmToken::LParen:
-    Lex(); // Eat the '('.
-    return parseParenExpr(Res, EndLoc);
-  case AsmToken::LBrac:
-    if (!PlatformParser->HasBracketExpressions())
-      return TokError("brackets expression not supported on this target");
-    Lex(); // Eat the '['.
-    return parseBracketExpr(Res, EndLoc);
-  case AsmToken::Minus:
-    Lex(); // Eat the operator.
-    if (parsePrimaryExpr(Res, EndLoc))
-      return true;
-    Res = MCUnaryExpr::createMinus(Res, getContext(), FirstTokenLoc);
-    return false;
-  case AsmToken::Plus:
-    Lex(); // Eat the operator.
-    if (parsePrimaryExpr(Res, EndLoc))
-      return true;
-    Res = MCUnaryExpr::createPlus(Res, getContext(), FirstTokenLoc);
-    return false;
-  case AsmToken::Tilde:
-    Lex(); // Eat the operator.
-    if (parsePrimaryExpr(Res, EndLoc))
-      return true;
-    Res = MCUnaryExpr::createNot(Res, getContext(), FirstTokenLoc);
-    return false;
-  // MIPS unary expression operators. The lexer won't generate these tokens if
-  // MCAsmInfo::HasMipsExpressions is false for the target.
-  case AsmToken::PercentCall16:
-  case AsmToken::PercentCall_Hi:
-  case AsmToken::PercentCall_Lo:
-  case AsmToken::PercentDtprel_Hi:
-  case AsmToken::PercentDtprel_Lo:
-  case AsmToken::PercentGot:
-  case AsmToken::PercentGot_Disp:
-  case AsmToken::PercentGot_Hi:
-  case AsmToken::PercentGot_Lo:
-  case AsmToken::PercentGot_Ofst:
-  case AsmToken::PercentGot_Page:
-  case AsmToken::PercentGottprel:
-  case AsmToken::PercentGp_Rel:
-  case AsmToken::PercentHi:
-  case AsmToken::PercentHigher:
-  case AsmToken::PercentHighest:
-  case AsmToken::PercentLo:
-  case AsmToken::PercentNeg:
-  case AsmToken::PercentPcrel_Hi:
-  case AsmToken::PercentPcrel_Lo:
-  case AsmToken::PercentTlsgd:
-  case AsmToken::PercentTlsldm:
-  case AsmToken::PercentTprel_Hi:
-  case AsmToken::PercentTprel_Lo:
-    Lex(); // Eat the operator.
-    if (Lexer.isNot(AsmToken::LParen))
-      return TokError("expected '(' after operator");
-    Lex(); // Eat the operator.
-    if (parseExpression(Res, EndLoc))
-      return true;
-    if (Lexer.isNot(AsmToken::RParen))
-      return TokError("expected ')'");
-    Lex(); // Eat the operator.
-    Res = getTargetParser().createTargetUnaryExpr(Res, FirstTokenKind, Ctx);
-    return !Res;
-  }
-}
-
-bool AsmParser::parseExpression(const MCExpr *&Res) {
-  SMLoc EndLoc;
-  return parseExpression(Res, EndLoc);
-}
-
-const MCExpr *
-AsmParser::applyModifierToExpr(const MCExpr *E,
-                               MCSymbolRefExpr::VariantKind Variant) {
-  // Ask the target implementation about this expression first.
-  const MCExpr *NewE = getTargetParser().applyModifierToExpr(E, Variant, Ctx);
-  if (NewE)
-    return NewE;
-  // Recurse over the given expression, rebuilding it to apply the given variant
-  // if there is exactly one symbol.
-  switch (E->getKind()) {
-  case MCExpr::Target:
-  case MCExpr::Constant:
-    return nullptr;
-
-  case MCExpr::SymbolRef: {
-    const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
-
-    if (SRE->getKind() != MCSymbolRefExpr::VK_None) {
-      TokError("invalid variant on expression '" + getTok().getIdentifier() +
-               "' (already modified)");
-      return E;
-    }
-
-    return MCSymbolRefExpr::create(&SRE->getSymbol(), Variant, getContext());
-  }
-
-  case MCExpr::Unary: {
-    const MCUnaryExpr *UE = cast<MCUnaryExpr>(E);
-    const MCExpr *Sub = applyModifierToExpr(UE->getSubExpr(), Variant);
-    if (!Sub)
-      return nullptr;
-    return MCUnaryExpr::create(UE->getOpcode(), Sub, getContext());
-  }
-
-  case MCExpr::Binary: {
-    const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
-    const MCExpr *LHS = applyModifierToExpr(BE->getLHS(), Variant);
-    const MCExpr *RHS = applyModifierToExpr(BE->getRHS(), Variant);
-
-    if (!LHS && !RHS)
-      return nullptr;
-
-    if (!LHS)
-      LHS = BE->getLHS();
-    if (!RHS)
-      RHS = BE->getRHS();
-
-    return MCBinaryExpr::create(BE->getOpcode(), LHS, RHS, getContext());
-  }
-  }
-
-  llvm_unreachable("Invalid expression kind!");
-}
-
-/// This function checks if the next token is <string> type or arithmetic.
-/// string that begin with character '<' must end with character '>'.
-/// otherwise it is arithmetics.
-/// If the function returns a 'true' value,
-/// the End argument will be filled with the last location pointed to the '>'
-/// character.
-
-/// There is a gap between the AltMacro's documentation and the single quote
-/// implementation. GCC does not fully support this feature and so we will not
-/// support it.
-/// TODO: Adding single quote as a string.
-static bool isAltmacroString(SMLoc &StrLoc, SMLoc &EndLoc) {
-  assert((StrLoc.getPointer() != nullptr) &&
-         "Argument to the function cannot be a NULL value");
-  const char *CharPtr = StrLoc.getPointer();
-  while ((*CharPtr != '>') && (*CharPtr != '\n') && (*CharPtr != '\r') &&
-         (*CharPtr != '\0')) {
-    if (*CharPtr == '!')
-      CharPtr++;
-    CharPtr++;
-  }
-  if (*CharPtr == '>') {
-    EndLoc = StrLoc.getFromPointer(CharPtr + 1);
-    return true;
-  }
-  return false;
-}
-
-/// creating a string without the escape characters '!'.
-static std::string altMacroString(StringRef AltMacroStr) {
-  std::string Res;
-  for (size_t Pos = 0; Pos < AltMacroStr.size(); Pos++) {
-    if (AltMacroStr[Pos] == '!')
-      Pos++;
-    Res += AltMacroStr[Pos];
-  }
-  return Res;
-}
-
-/// Parse an expression and return it.
-///
-///  expr ::= expr &&,|| expr               -> lowest.
-///  expr ::= expr |,^,&,! expr
-///  expr ::= expr ==,!=,<>,<,<=,>,>= expr
-///  expr ::= expr <<,>> expr
-///  expr ::= expr +,- expr
-///  expr ::= expr *,/,% expr               -> highest.
-///  expr ::= primaryexpr
-///
-bool AsmParser::parseExpression(const MCExpr *&Res, SMLoc &EndLoc) {
-  // Parse the expression.
-  Res = nullptr;
-  if (getTargetParser().parsePrimaryExpr(Res, EndLoc) ||
-      parseBinOpRHS(1, Res, EndLoc))
-    return true;
-
-  // As a special case, we support 'a op b @ modifier' by rewriting the
-  // expression to include the modifier. This is inefficient, but in general we
-  // expect users to use 'a@modifier op b'.
-  if (Lexer.getKind() == AsmToken::At) {
-    Lex();
-
-    if (Lexer.isNot(AsmToken::Identifier))
-      return TokError("unexpected symbol modifier following '@'");
-
-    MCSymbolRefExpr::VariantKind Variant =
-        MCSymbolRefExpr::getVariantKindForName(getTok().getIdentifier());
-    if (Variant == MCSymbolRefExpr::VK_Invalid)
-      return TokError("invalid variant '" + getTok().getIdentifier() + "'");
-
-    const MCExpr *ModifiedRes = applyModifierToExpr(Res, Variant);
-    if (!ModifiedRes) {
-      return TokError("invalid modifier '" + getTok().getIdentifier() +
-                      "' (no symbols present)");
-    }
-
-    Res = ModifiedRes;
-    Lex();
-  }
-
-  // Try to constant fold it up front, if possible. Do not exploit
-  // assembler here.
-  int64_t Value;
-  if (Res->evaluateAsAbsolute(Value))
-    Res = MCConstantExpr::create(Value, getContext());
-
-  return false;
-}
-
-bool AsmParser::parseParenExpression(const MCExpr *&Res, SMLoc &EndLoc) {
-  Res = nullptr;
-  return parseParenExpr(Res, EndLoc) || parseBinOpRHS(1, Res, EndLoc);
-}
-
-bool AsmParser::parseParenExprOfDepth(unsigned ParenDepth, const MCExpr *&Res,
-                                      SMLoc &EndLoc) {
-  if (parseParenExpr(Res, EndLoc))
-    return true;
-
-  for (; ParenDepth > 0; --ParenDepth) {
-    if (parseBinOpRHS(1, Res, EndLoc))
-      return true;
-
-    // We don't Lex() the last RParen.
-    // This is the same behavior as parseParenExpression().
-    if (ParenDepth - 1 > 0) {
-      EndLoc = getTok().getEndLoc();
-      if (parseToken(AsmToken::RParen,
-                     "expected ')' in parentheses expression"))
-        return true;
-    }
-  }
-  return false;
-}
-
-bool AsmParser::parseAbsoluteExpression(int64_t &Res) {
-  const MCExpr *Expr;
-
-  SMLoc StartLoc = Lexer.getLoc();
-  if (parseExpression(Expr))
-    return true;
-
-  if (!Expr->evaluateAsAbsolute(Res, getStreamer().getAssemblerPtr()))
-    return Error(StartLoc, "expected absolute expression");
-
-  return false;
-}
-
-static unsigned getDarwinBinOpPrecedence(AsmToken::TokenKind K,
-                                         MCBinaryExpr::Opcode &Kind,
-                                         bool ShouldUseLogicalShr) {
-  switch (K) {
-  default:
-    return 0; // not a binop.
-
-  // Lowest Precedence: &&, ||
-  case AsmToken::AmpAmp:
-    Kind = MCBinaryExpr::LAnd;
-    return 1;
-  case AsmToken::PipePipe:
-    Kind = MCBinaryExpr::LOr;
-    return 1;
-
-  // Low Precedence: |, &, ^
-  //
-  // FIXME: gas seems to support '!' as an infix operator?
-  case AsmToken::Pipe:
-    Kind = MCBinaryExpr::Or;
-    return 2;
-  case AsmToken::Caret:
-    Kind = MCBinaryExpr::Xor;
-    return 2;
-  case AsmToken::Amp:
-    Kind = MCBinaryExpr::And;
-    return 2;
-
-  // Low Intermediate Precedence: ==, !=, <>, <, <=, >, >=
-  case AsmToken::EqualEqual:
-    Kind = MCBinaryExpr::EQ;
-    return 3;
-  case AsmToken::ExclaimEqual:
-  case AsmToken::LessGreater:
-    Kind = MCBinaryExpr::NE;
-    return 3;
-  case AsmToken::Less:
-    Kind = MCBinaryExpr::LT;
-    return 3;
-  case AsmToken::LessEqual:
-    Kind = MCBinaryExpr::LTE;
-    return 3;
-  case AsmToken::Greater:
-    Kind = MCBinaryExpr::GT;
-    return 3;
-  case AsmToken::GreaterEqual:
-    Kind = MCBinaryExpr::GTE;
-    return 3;
-
-  // Intermediate Precedence: <<, >>
-  case AsmToken::LessLess:
-    Kind = MCBinaryExpr::Shl;
-    return 4;
-  case AsmToken::GreaterGreater:
-    Kind = ShouldUseLogicalShr ? MCBinaryExpr::LShr : MCBinaryExpr::AShr;
-    return 4;
-
-  // High Intermediate Precedence: +, -
-  case AsmToken::Plus:
-    Kind = MCBinaryExpr::Add;
-    return 5;
-  case AsmToken::Minus:
-    Kind = MCBinaryExpr::Sub;
-    return 5;
-
-  // Highest Precedence: *, /, %
-  case AsmToken::Star:
-    Kind = MCBinaryExpr::Mul;
-    return 6;
-  case AsmToken::Slash:
-    Kind = MCBinaryExpr::Div;
-    return 6;
-  case AsmToken::Percent:
-    Kind = MCBinaryExpr::Mod;
-    return 6;
-  }
-}
-
-static unsigned getGNUBinOpPrecedence(AsmToken::TokenKind K,
-                                      MCBinaryExpr::Opcode &Kind,
-                                      bool ShouldUseLogicalShr) {
-  switch (K) {
-  default:
-    return 0; // not a binop.
-
-  // Lowest Precedence: &&, ||
-  case AsmToken::AmpAmp:
-    Kind = MCBinaryExpr::LAnd;
-    return 2;
-  case AsmToken::PipePipe:
-    Kind = MCBinaryExpr::LOr;
-    return 1;
-
-  // Low Precedence: ==, !=, <>, <, <=, >, >=
-  case AsmToken::EqualEqual:
-    Kind = MCBinaryExpr::EQ;
-    return 3;
-  case AsmToken::ExclaimEqual:
-  case AsmToken::LessGreater:
-    Kind = MCBinaryExpr::NE;
-    return 3;
-  case AsmToken::Less:
-    Kind = MCBinaryExpr::LT;
-    return 3;
-  case AsmToken::LessEqual:
-    Kind = MCBinaryExpr::LTE;
-    return 3;
-  case AsmToken::Greater:
-    Kind = MCBinaryExpr::GT;
-    return 3;
-  case AsmToken::GreaterEqual:
-    Kind = MCBinaryExpr::GTE;
-    return 3;
-
-  // Low Intermediate Precedence: +, -
-  case AsmToken::Plus:
-    Kind = MCBinaryExpr::Add;
-    return 4;
-  case AsmToken::Minus:
-    Kind = MCBinaryExpr::Sub;
-    return 4;
-
-  // High Intermediate Precedence: |, &, ^
-  //
-  // FIXME: gas seems to support '!' as an infix operator?
-  case AsmToken::Pipe:
-    Kind = MCBinaryExpr::Or;
-    return 5;
-  case AsmToken::Caret:
-    Kind = MCBinaryExpr::Xor;
-    return 5;
-  case AsmToken::Amp:
-    Kind = MCBinaryExpr::And;
-    return 5;
-
-  // Highest Precedence: *, /, %, <<, >>
-  case AsmToken::Star:
-    Kind = MCBinaryExpr::Mul;
-    return 6;
-  case AsmToken::Slash:
-    Kind = MCBinaryExpr::Div;
-    return 6;
-  case AsmToken::Percent:
-    Kind = MCBinaryExpr::Mod;
-    return 6;
-  case AsmToken::LessLess:
-    Kind = MCBinaryExpr::Shl;
-    return 6;
-  case AsmToken::GreaterGreater:
-    Kind = ShouldUseLogicalShr ? MCBinaryExpr::LShr : MCBinaryExpr::AShr;
-    return 6;
-  }
-}
-
-unsigned AsmParser::getBinOpPrecedence(AsmToken::TokenKind K,
-                                       MCBinaryExpr::Opcode &Kind) {
-  bool ShouldUseLogicalShr = MAI.shouldUseLogicalShr();
-  return IsDarwin ? getDarwinBinOpPrecedence(K, Kind, ShouldUseLogicalShr)
-                  : getGNUBinOpPrecedence(K, Kind, ShouldUseLogicalShr);
-}
-
-/// Parse all binary operators with precedence >= 'Precedence'.
-/// Res contains the LHS of the expression on input.
-bool AsmParser::parseBinOpRHS(unsigned Precedence, const MCExpr *&Res,
-                              SMLoc &EndLoc) {
-  SMLoc StartLoc = Lexer.getLoc();
-  while (true) {
-    MCBinaryExpr::Opcode Kind = MCBinaryExpr::Add;
-    unsigned TokPrec = getBinOpPrecedence(Lexer.getKind(), Kind);
-
-    // If the next token is lower precedence than we are allowed to eat, return
-    // successfully with what we ate already.
-    if (TokPrec < Precedence)
-      return false;
-
-    Lex();
-
-    // Eat the next primary expression.
-    const MCExpr *RHS;
-    if (getTargetParser().parsePrimaryExpr(RHS, EndLoc))
-      return true;
-
-    // If BinOp binds less tightly with RHS than the operator after RHS, let
-    // the pending operator take RHS as its LHS.
-    MCBinaryExpr::Opcode Dummy;
-    unsigned NextTokPrec = getBinOpPrecedence(Lexer.getKind(), Dummy);
-    if (TokPrec < NextTokPrec && parseBinOpRHS(TokPrec + 1, RHS, EndLoc))
-      return true;
-
-    // Merge LHS and RHS according to operator.
-    Res = MCBinaryExpr::create(Kind, Res, RHS, getContext(), StartLoc);
-  }
-}
-
-/// ParseStatement:
-///   ::= EndOfStatement
-///   ::= Label* Directive ...Operands... EndOfStatement
-///   ::= Label* Identifier OperandList* EndOfStatement
-bool AsmParser::parseStatement(ParseStatementInfo &Info,
-                               MCAsmParserSemaCallback *SI) {
-  assert(!hasPendingError() && "parseStatement started with pending error");
-  // Eat initial spaces and comments
-  while (Lexer.is(AsmToken::Space))
-    Lex();
-  if (Lexer.is(AsmToken::EndOfStatement)) {
-    // if this is a line comment we can drop it safely
-    if (getTok().getString().empty() || getTok().getString().front() == '\r' ||
-        getTok().getString().front() == '\n')
-      Out.AddBlankLine();
-    Lex();
-    return false;
-  }
-  // Statements always start with an identifier.
-  AsmToken ID = getTok();
-  SMLoc IDLoc = ID.getLoc();
-  StringRef IDVal;
-  int64_t LocalLabelVal = -1;
-  if (Lexer.is(AsmToken::HashDirective))
-    return parseCppHashLineFilenameComment(IDLoc);
-  // Allow an integer followed by a ':' as a directional local label.
-  if (Lexer.is(AsmToken::Integer)) {
-    LocalLabelVal = getTok().getIntVal();
-    if (LocalLabelVal < 0) {
-      if (!TheCondState.Ignore) {
-        Lex(); // always eat a token
-        return Error(IDLoc, "unexpected token at start of statement");
-      }
-      IDVal = "";
-    } else {
-      IDVal = getTok().getString();
-      Lex(); // Consume the integer token to be used as an identifier token.
-      if (Lexer.getKind() != AsmToken::Colon) {
-        if (!TheCondState.Ignore) {
-          Lex(); // always eat a token
-          return Error(IDLoc, "unexpected token at start of statement");
-        }
-      }
-    }
-  } else if (Lexer.is(AsmToken::Dot)) {
-    // Treat '.' as a valid identifier in this context.
-    Lex();
-    IDVal = ".";
-  } else if (Lexer.is(AsmToken::LCurly)) {
-    // Treat '{' as a valid identifier in this context.
-    Lex();
-    IDVal = "{";
-
-  } else if (Lexer.is(AsmToken::RCurly)) {
-    // Treat '}' as a valid identifier in this context.
-    Lex();
-    IDVal = "}";
-  } else if (Lexer.is(AsmToken::Star) &&
-             getTargetParser().starIsStartOfStatement()) {
-    // Accept '*' as a valid start of statement.
-    Lex();
-    IDVal = "*";
-  } else if (parseIdentifier(IDVal)) {
-    if (!TheCondState.Ignore) {
-      Lex(); // always eat a token
-      return Error(IDLoc, "unexpected token at start of statement");
-    }
-    IDVal = "";
-  }
-
-  // Handle conditional assembly here before checking for skipping.  We
-  // have to do this so that .endif isn't skipped in a ".if 0" block for
-  // example.
-  StringMap<DirectiveKind>::const_iterator DirKindIt =
-      DirectiveKindMap.find(IDVal);
-  DirectiveKind DirKind = (DirKindIt == DirectiveKindMap.end())
-                              ? DK_NO_DIRECTIVE
-                              : DirKindIt->getValue();
-  switch (DirKind) {
-  default:
-    break;
-  case DK_IF:
-  case DK_IFEQ:
-  case DK_IFGE:
-  case DK_IFGT:
-  case DK_IFLE:
-  case DK_IFLT:
-  case DK_IFNE:
-    return parseDirectiveIf(IDLoc, DirKind);
-  case DK_IFB:
-    return parseDirectiveIfb(IDLoc, true);
-  case DK_IFNB:
-    return parseDirectiveIfb(IDLoc, false);
-  case DK_IFC:
-    return parseDirectiveIfc(IDLoc, true);
-  case DK_IFEQS:
-    return parseDirectiveIfeqs(IDLoc, true);
-  case DK_IFNC:
-    return parseDirectiveIfc(IDLoc, false);
-  case DK_IFNES:
-    return parseDirectiveIfeqs(IDLoc, false);
-  case DK_IFDEF:
-    return parseDirectiveIfdef(IDLoc, true);
-  case DK_IFNDEF:
-  case DK_IFNOTDEF:
-    return parseDirectiveIfdef(IDLoc, false);
-  case DK_ELSEIF:
-    return parseDirectiveElseIf(IDLoc);
-  case DK_ELSE:
-    return parseDirectiveElse(IDLoc);
-  case DK_ENDIF:
-    return parseDirectiveEndIf(IDLoc);
-  }
-
-  // Ignore the statement if in the middle of inactive conditional
-  // (e.g. ".if 0").
-  if (TheCondState.Ignore) {
-    eatToEndOfStatement();
-    return false;
-  }
-
-  // FIXME: Recurse on local labels?
-
-  // See what kind of statement we have.
-  switch (Lexer.getKind()) {
-  case AsmToken::Colon: {
-    if (!getTargetParser().isLabel(ID))
-      break;
-    if (checkForValidSection())
-      return true;
-
-    // identifier ':'   -> Label.
-    Lex();
-
-    // Diagnose attempt to use '.' as a label.
-    if (IDVal == ".")
-      return Error(IDLoc, "invalid use of pseudo-symbol '.' as a label");
-
-    // Diagnose attempt to use a variable as a label.
-    //
-    // FIXME: Diagnostics. Note the location of the definition as a label.
-    // FIXME: This doesn't diagnose assignment to a symbol which has been
-    // implicitly marked as external.
-    MCSymbol *Sym;
-    if (LocalLabelVal == -1) {
-      if (ParsingInlineAsm && SI) {
-        StringRef RewrittenLabel =
-            SI->LookupInlineAsmLabel(IDVal, getSourceManager(), IDLoc, true);
-        assert(!RewrittenLabel.empty() &&
-               "We should have an internal name here.");
-        Info.AsmRewrites->emplace_back(AOK_Label, IDLoc, IDVal.size(),
-                                       RewrittenLabel);
-        IDVal = RewrittenLabel;
-      }
-      Sym = getContext().getOrCreateSymbol(IDVal);
-    } else
-      Sym = Ctx.createDirectionalLocalSymbol(LocalLabelVal);
-    // End of Labels should be treated as end of line for lexing
-    // purposes but that information is not available to the Lexer who
-    // does not understand Labels. This may cause us to see a Hash
-    // here instead of a preprocessor line comment.
-    if (getTok().is(AsmToken::Hash)) {
-      StringRef CommentStr = parseStringToEndOfStatement();
-      Lexer.Lex();
-      Lexer.UnLex(AsmToken(AsmToken::EndOfStatement, CommentStr));
-    }
-
-    // Consume any end of statement token, if present, to avoid spurious
-    // AddBlankLine calls().
-    if (getTok().is(AsmToken::EndOfStatement)) {
-      Lex();
-    }
-
-    getTargetParser().doBeforeLabelEmit(Sym);
-
-    // Emit the label.
-    if (!getTargetParser().isParsingInlineAsm())
-      Out.EmitLabel(Sym, IDLoc);
-
-    // If we are generating dwarf for assembly source files then gather the
-    // info to make a dwarf label entry for this label if needed.
-    if (enabledGenDwarfForAssembly())
-      MCGenDwarfLabelEntry::Make(Sym, &getStreamer(), getSourceManager(),
-                                 IDLoc);
-
-    getTargetParser().onLabelParsed(Sym);
-
-    return false;
-  }
-
-  case AsmToken::Equal:
-    if (!getTargetParser().equalIsAsmAssignment())
-      break;
-    // identifier '=' ... -> assignment statement
-    Lex();
-
-    return parseAssignment(IDVal, true);
-
-  default: // Normal instruction or directive.
-    break;
-  }
-
-  // If macros are enabled, check to see if this is a macro instantiation.
-  if (areMacrosEnabled())
-    if (const MCAsmMacro *M = getContext().lookupMacro(IDVal)) {
-      return handleMacroEntry(M, IDLoc);
-    }
-
-  // Otherwise, we have a normal instruction or directive.
-
-  // Directives start with "."
-  if (IDVal.startswith(".") && IDVal != ".") {
-    // There are several entities interested in parsing directives:
-    //
-    // 1. The target-specific assembly parser. Some directives are target
-    //    specific or may potentially behave differently on certain targets.
-    // 2. Asm parser extensions. For example, platform-specific parsers
-    //    (like the ELF parser) register themselves as extensions.
-    // 3. The generic directive parser implemented by this class. These are
-    //    all the directives that behave in a target and platform independent
-    //    manner, or at least have a default behavior that's shared between
-    //    all targets and platforms.
-
-    getTargetParser().flushPendingInstructions(getStreamer());
-
-    SMLoc StartTokLoc = getTok().getLoc();
-    bool TPDirectiveReturn = getTargetParser().ParseDirective(ID);
-
-    if (hasPendingError())
-      return true;
-    // Currently the return value should be true if we are
-    // uninterested but as this is at odds with the standard parsing
-    // convention (return true = error) we have instances of a parsed
-    // directive that fails returning true as an error. Catch these
-    // cases as best as possible errors here.
-    if (TPDirectiveReturn && StartTokLoc != getTok().getLoc())
-      return true;
-    // Return if we did some parsing or believe we succeeded.
-    if (!TPDirectiveReturn || StartTokLoc != getTok().getLoc())
-      return false;
-
-    // Next, check the extension directive map to see if any extension has
-    // registered itself to parse this directive.
-    std::pair<MCAsmParserExtension *, DirectiveHandler> Handler =
-        ExtensionDirectiveMap.lookup(IDVal);
-    if (Handler.first)
-      return (*Handler.second)(Handler.first, IDVal, IDLoc);
-
-    // Finally, if no one else is interested in this directive, it must be
-    // generic and familiar to this class.
-    switch (DirKind) {
-    default:
-      break;
-    case DK_SET:
-    case DK_EQU:
-      return parseDirectiveSet(IDVal, true);
-    case DK_EQUIV:
-      return parseDirectiveSet(IDVal, false);
-    case DK_ASCII:
-      return parseDirectiveAscii(IDVal, false);
-    case DK_ASCIZ:
-    case DK_STRING:
-      return parseDirectiveAscii(IDVal, true);
-    case DK_BYTE:
-    case DK_DC_B:
-      return parseDirectiveValue(IDVal, 1);
-    case DK_DC:
-    case DK_DC_W:
-    case DK_SHORT:
-    case DK_VALUE:
-    case DK_2BYTE:
-      return parseDirectiveValue(IDVal, 2);
-    case DK_LONG:
-    case DK_INT:
-    case DK_4BYTE:
-    case DK_DC_L:
-      return parseDirectiveValue(IDVal, 4);
-    case DK_QUAD:
-    case DK_8BYTE:
-      return parseDirectiveValue(IDVal, 8);
-    case DK_DC_A:
-      return parseDirectiveValue(
-          IDVal, getContext().getAsmInfo()->getCodePointerSize());
-    case DK_OCTA:
-      return parseDirectiveOctaValue(IDVal);
-    case DK_SINGLE:
-    case DK_FLOAT:
-    case DK_DC_S:
-      return parseDirectiveRealValue(IDVal, APFloat::IEEEsingle());
-    case DK_DOUBLE:
-    case DK_DC_D:
-      return parseDirectiveRealValue(IDVal, APFloat::IEEEdouble());
-    case DK_ALIGN: {
-      bool IsPow2 = !getContext().getAsmInfo()->getAlignmentIsInBytes();
-      return parseDirectiveAlign(IsPow2, /*ExprSize=*/1);
-    }
-    case DK_ALIGN32: {
-      bool IsPow2 = !getContext().getAsmInfo()->getAlignmentIsInBytes();
-      return parseDirectiveAlign(IsPow2, /*ExprSize=*/4);
-    }
-    case DK_BALIGN:
-      return parseDirectiveAlign(/*IsPow2=*/false, /*ExprSize=*/1);
-    case DK_BALIGNW:
-      return parseDirectiveAlign(/*IsPow2=*/false, /*ExprSize=*/2);
-    case DK_BALIGNL:
-      return parseDirectiveAlign(/*IsPow2=*/false, /*ExprSize=*/4);
-    case DK_P2ALIGN:
-      return parseDirectiveAlign(/*IsPow2=*/true, /*ExprSize=*/1);
-    case DK_P2ALIGNW:
-      return parseDirectiveAlign(/*IsPow2=*/true, /*ExprSize=*/2);
-    case DK_P2ALIGNL:
-      return parseDirectiveAlign(/*IsPow2=*/true, /*ExprSize=*/4);
-    case DK_ORG:
-      return parseDirectiveOrg();
-    case DK_FILL:
-      return parseDirectiveFill();
-    case DK_ZERO:
-      return parseDirectiveZero();
-    case DK_EXTERN:
-      eatToEndOfStatement(); // .extern is the default, ignore it.
-      return false;
-    case DK_GLOBL:
-    case DK_GLOBAL:
-      return parseDirectiveSymbolAttribute(MCSA_Global);
-    case DK_LAZY_REFERENCE:
-      return parseDirectiveSymbolAttribute(MCSA_LazyReference);
-    case DK_NO_DEAD_STRIP:
-      return parseDirectiveSymbolAttribute(MCSA_NoDeadStrip);
-    case DK_SYMBOL_RESOLVER:
-      return parseDirectiveSymbolAttribute(MCSA_SymbolResolver);
-    case DK_PRIVATE_EXTERN:
-      return parseDirectiveSymbolAttribute(MCSA_PrivateExtern);
-    case DK_REFERENCE:
-      return parseDirectiveSymbolAttribute(MCSA_Reference);
-    case DK_WEAK_DEFINITION:
-      return parseDirectiveSymbolAttribute(MCSA_WeakDefinition);
-    case DK_WEAK_REFERENCE:
-      return parseDirectiveSymbolAttribute(MCSA_WeakReference);
-    case DK_WEAK_DEF_CAN_BE_HIDDEN:
-      return parseDirectiveSymbolAttribute(MCSA_WeakDefAutoPrivate);
-    case DK_COMM:
-    case DK_COMMON:
-      return parseDirectiveComm(/*IsLocal=*/false);
-    case DK_LCOMM:
-      return parseDirectiveComm(/*IsLocal=*/true);
-    case DK_ABORT:
-      return parseDirectiveAbort();
-    case DK_INCLUDE:
-      return parseDirectiveInclude();
-    case DK_INCBIN:
-      return parseDirectiveIncbin();
-    case DK_CODE16:
-    case DK_CODE16GCC:
-      return TokError(Twine(IDVal) +
-                      " not currently supported for this target");
-    case DK_REPT:
-      return parseDirectiveRept(IDLoc, IDVal);
-    case DK_IRP:
-      return parseDirectiveIrp(IDLoc);
-    case DK_IRPC:
-      return parseDirectiveIrpc(IDLoc);
-    case DK_ENDR:
-      return parseDirectiveEndr(IDLoc);
-    case DK_BUNDLE_ALIGN_MODE:
-      return parseDirectiveBundleAlignMode();
-    case DK_BUNDLE_LOCK:
-      return parseDirectiveBundleLock();
-    case DK_BUNDLE_UNLOCK:
-      return parseDirectiveBundleUnlock();
-    case DK_SLEB128:
-      return parseDirectiveLEB128(true);
-    case DK_ULEB128:
-      return parseDirectiveLEB128(false);
-    case DK_SPACE:
-    case DK_SKIP:
-      return parseDirectiveSpace(IDVal);
-    case DK_FILE:
-      return parseDirectiveFile(IDLoc);
-    case DK_LINE:
-      return parseDirectiveLine();
-    case DK_LOC:
-      return parseDirectiveLoc();
-    case DK_STABS:
-      return parseDirectiveStabs();
-    case DK_CV_FILE:
-      return parseDirectiveCVFile();
-    case DK_CV_FUNC_ID:
-      return parseDirectiveCVFuncId();
-    case DK_CV_INLINE_SITE_ID:
-      return parseDirectiveCVInlineSiteId();
-    case DK_CV_LOC:
-      return parseDirectiveCVLoc();
-    case DK_CV_LINETABLE:
-      return parseDirectiveCVLinetable();
-    case DK_CV_INLINE_LINETABLE:
-      return parseDirectiveCVInlineLinetable();
-    case DK_CV_DEF_RANGE:
-      return parseDirectiveCVDefRange();
-    case DK_CV_STRING:
-      return parseDirectiveCVString();
-    case DK_CV_STRINGTABLE:
-      return parseDirectiveCVStringTable();
-    case DK_CV_FILECHECKSUMS:
-      return parseDirectiveCVFileChecksums();
-    case DK_CV_FILECHECKSUM_OFFSET:
-      return parseDirectiveCVFileChecksumOffset();
-    case DK_CV_FPO_DATA:
-      return parseDirectiveCVFPOData();
-    case DK_CFI_SECTIONS:
-      return parseDirectiveCFISections();
-    case DK_CFI_STARTPROC:
-      return parseDirectiveCFIStartProc();
-    case DK_CFI_ENDPROC:
-      return parseDirectiveCFIEndProc();
-    case DK_CFI_DEF_CFA:
-      return parseDirectiveCFIDefCfa(IDLoc);
-    case DK_CFI_DEF_CFA_OFFSET:
-      return parseDirectiveCFIDefCfaOffset();
-    case DK_CFI_ADJUST_CFA_OFFSET:
-      return parseDirectiveCFIAdjustCfaOffset();
-    case DK_CFI_DEF_CFA_REGISTER:
-      return parseDirectiveCFIDefCfaRegister(IDLoc);
-    case DK_CFI_OFFSET:
-      return parseDirectiveCFIOffset(IDLoc);
-    case DK_CFI_REL_OFFSET:
-      return parseDirectiveCFIRelOffset(IDLoc);
-    case DK_CFI_PERSONALITY:
-      return parseDirectiveCFIPersonalityOrLsda(true);
-    case DK_CFI_LSDA:
-      return parseDirectiveCFIPersonalityOrLsda(false);
-    case DK_CFI_REMEMBER_STATE:
-      return parseDirectiveCFIRememberState();
-    case DK_CFI_RESTORE_STATE:
-      return parseDirectiveCFIRestoreState();
-    case DK_CFI_SAME_VALUE:
-      return parseDirectiveCFISameValue(IDLoc);
-    case DK_CFI_RESTORE:
-      return parseDirectiveCFIRestore(IDLoc);
-    case DK_CFI_ESCAPE:
-      return parseDirectiveCFIEscape();
-    case DK_CFI_RETURN_COLUMN:
-      return parseDirectiveCFIReturnColumn(IDLoc);
-    case DK_CFI_SIGNAL_FRAME:
-      return parseDirectiveCFISignalFrame();
-    case DK_CFI_UNDEFINED:
-      return parseDirectiveCFIUndefined(IDLoc);
-    case DK_CFI_REGISTER:
-      return parseDirectiveCFIRegister(IDLoc);
-    case DK_CFI_WINDOW_SAVE:
-      return parseDirectiveCFIWindowSave();
-    case DK_MACROS_ON:
-    case DK_MACROS_OFF:
-      return parseDirectiveMacrosOnOff(IDVal);
-    case DK_MACRO:
-      return parseDirectiveMacro(IDLoc);
-    case DK_ALTMACRO:
-    case DK_NOALTMACRO:
-      return parseDirectiveAltmacro(IDVal);
-    case DK_EXITM:
-      return parseDirectiveExitMacro(IDVal);
-    case DK_ENDM:
-    case DK_ENDMACRO:
-      return parseDirectiveEndMacro(IDVal);
-    case DK_PURGEM:
-      return parseDirectivePurgeMacro(IDLoc);
-    case DK_END:
-      return parseDirectiveEnd(IDLoc);
-    case DK_ERR:
-      return parseDirectiveError(IDLoc, false);
-    case DK_ERROR:
-      return parseDirectiveError(IDLoc, true);
-    case DK_WARNING:
-      return parseDirectiveWarning(IDLoc);
-    case DK_RELOC:
-      return parseDirectiveReloc(IDLoc);
-    case DK_DCB:
-    case DK_DCB_W:
-      return parseDirectiveDCB(IDVal, 2);
-    case DK_DCB_B:
-      return parseDirectiveDCB(IDVal, 1);
-    case DK_DCB_D:
-      return parseDirectiveRealDCB(IDVal, APFloat::IEEEdouble());
-    case DK_DCB_L:
-      return parseDirectiveDCB(IDVal, 4);
-    case DK_DCB_S:
-      return parseDirectiveRealDCB(IDVal, APFloat::IEEEsingle());
-    case DK_DC_X:
-    case DK_DCB_X:
-      return TokError(Twine(IDVal) +
-                      " not currently supported for this target");
-    case DK_DS:
-    case DK_DS_W:
-      return parseDirectiveDS(IDVal, 2);
-    case DK_DS_B:
-      return parseDirectiveDS(IDVal, 1);
-    case DK_DS_D:
-      return parseDirectiveDS(IDVal, 8);
-    case DK_DS_L:
-    case DK_DS_S:
-      return parseDirectiveDS(IDVal, 4);
-    case DK_DS_P:
-    case DK_DS_X:
-      return parseDirectiveDS(IDVal, 12);
-    case DK_PRINT:
-      return parseDirectivePrint(IDLoc);
-    case DK_ADDRSIG:
-      return parseDirectiveAddrsig();
-    case DK_ADDRSIG_SYM:
-      return parseDirectiveAddrsigSym();
-    }
-
-    return Error(IDLoc, "unknown directive");
-  }
-
-  // __asm _emit or __asm __emit
-  if (ParsingInlineAsm && (IDVal == "_emit" || IDVal == "__emit" ||
-                           IDVal == "_EMIT" || IDVal == "__EMIT"))
-    return parseDirectiveMSEmit(IDLoc, Info, IDVal.size());
-
-  // __asm align
-  if (ParsingInlineAsm && (IDVal == "align" || IDVal == "ALIGN"))
-    return parseDirectiveMSAlign(IDLoc, Info);
-
-  if (ParsingInlineAsm && (IDVal == "even" || IDVal == "EVEN"))
-    Info.AsmRewrites->emplace_back(AOK_EVEN, IDLoc, 4);
-  if (checkForValidSection())
-    return true;
-
-  // Canonicalize the opcode to lower case.
-  std::string OpcodeStr = IDVal.lower();
-  ParseInstructionInfo IInfo(Info.AsmRewrites);
-  bool ParseHadError = getTargetParser().ParseInstruction(IInfo, OpcodeStr, ID,
-                                                          Info.ParsedOperands);
-  Info.ParseError = ParseHadError;
-
-  // Dump the parsed representation, if requested.
-  if (getShowParsedOperands()) {
-    SmallString<256> Str;
-    raw_svector_ostream OS(Str);
-    OS << "parsed instruction: [";
-    for (unsigned i = 0; i != Info.ParsedOperands.size(); ++i) {
-      if (i != 0)
-        OS << ", ";
-      Info.ParsedOperands[i]->print(OS);
-    }
-    OS << "]";
-
-    printMessage(IDLoc, SourceMgr::DK_Note, OS.str());
-  }
-
-  // Fail even if ParseInstruction erroneously returns false.
-  if (hasPendingError() || ParseHadError)
-    return true;
-
-  // If we are generating dwarf for the current section then generate a .loc
-  // directive for the instruction.
-  if (!ParseHadError && enabledGenDwarfForAssembly() &&
-      getContext().getGenDwarfSectionSyms().count(
-          getStreamer().getCurrentSectionOnly())) {
-    unsigned Line;
-    if (ActiveMacros.empty())
-      Line = SrcMgr.FindLineNumber(IDLoc, CurBuffer);
-    else
-      Line = SrcMgr.FindLineNumber(ActiveMacros.front()->InstantiationLoc,
-                                   ActiveMacros.front()->ExitBuffer);
-
-    // If we previously parsed a cpp hash file line comment then make sure the
-    // current Dwarf File is for the CppHashFilename if not then emit the
-    // Dwarf File table for it and adjust the line number for the .loc.
-    if (!CppHashInfo.Filename.empty()) {
-      unsigned FileNumber = getStreamer().EmitDwarfFileDirective(
-          0, StringRef(), CppHashInfo.Filename);
-      getContext().setGenDwarfFileNumber(FileNumber);
-
-      unsigned CppHashLocLineNo =
-        SrcMgr.FindLineNumber(CppHashInfo.Loc, CppHashInfo.Buf);
-      Line = CppHashInfo.LineNumber - 1 + (Line - CppHashLocLineNo);
-    }
-
-    getStreamer().EmitDwarfLocDirective(
-        getContext().getGenDwarfFileNumber(), Line, 0,
-        DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0, 0, 0,
-        StringRef());
-  }
-
-  // If parsing succeeded, match the instruction.
-  if (!ParseHadError) {
-    uint64_t ErrorInfo;
-    if (getTargetParser().MatchAndEmitInstruction(
-            IDLoc, Info.Opcode, Info.ParsedOperands, Out, ErrorInfo,
-            getTargetParser().isParsingInlineAsm()))
-      return true;
-  }
-  return false;
-}
-
-// Parse and erase curly braces marking block start/end
-bool
-AsmParser::parseCurlyBlockScope(SmallVectorImpl<AsmRewrite> &AsmStrRewrites) {
-  // Identify curly brace marking block start/end
-  if (Lexer.isNot(AsmToken::LCurly) && Lexer.isNot(AsmToken::RCurly))
-    return false;
-
-  SMLoc StartLoc = Lexer.getLoc();
-  Lex(); // Eat the brace
-  if (Lexer.is(AsmToken::EndOfStatement))
-    Lex(); // Eat EndOfStatement following the brace
-
-  // Erase the block start/end brace from the output asm string
-  AsmStrRewrites.emplace_back(AOK_Skip, StartLoc, Lexer.getLoc().getPointer() -
-                                                  StartLoc.getPointer());
-  return true;
-}
-
-/// parseCppHashLineFilenameComment as this:
-///   ::= # number "filename"
-bool AsmParser::parseCppHashLineFilenameComment(SMLoc L) {
-  Lex(); // Eat the hash token.
-  // Lexer only ever emits HashDirective if it fully formed if it's
-  // done the checking already so this is an internal error.
-  assert(getTok().is(AsmToken::Integer) &&
-         "Lexing Cpp line comment: Expected Integer");
-  int64_t LineNumber = getTok().getIntVal();
-  Lex();
-  assert(getTok().is(AsmToken::String) &&
-         "Lexing Cpp line comment: Expected String");
-  StringRef Filename = getTok().getString();
-  Lex();
-
-  // Get rid of the enclosing quotes.
-  Filename = Filename.substr(1, Filename.size() - 2);
-
-  // Save the SMLoc, Filename and LineNumber for later use by diagnostics.
-  CppHashInfo.Loc = L;
-  CppHashInfo.Filename = Filename;
-  CppHashInfo.LineNumber = LineNumber;
-  CppHashInfo.Buf = CurBuffer;
-  return false;
-}
-
-/// will use the last parsed cpp hash line filename comment
-/// for the Filename and LineNo if any in the diagnostic.
-void AsmParser::DiagHandler(const SMDiagnostic &Diag, void *Context) {
-  const AsmParser *Parser = static_cast<const AsmParser *>(Context);
-  raw_ostream &OS = errs();
-
-  const SourceMgr &DiagSrcMgr = *Diag.getSourceMgr();
-  SMLoc DiagLoc = Diag.getLoc();
-  unsigned DiagBuf = DiagSrcMgr.FindBufferContainingLoc(DiagLoc);
-  unsigned CppHashBuf =
-      Parser->SrcMgr.FindBufferContainingLoc(Parser->CppHashInfo.Loc);
-
-  // Like SourceMgr::printMessage() we need to print the include stack if any
-  // before printing the message.
-  unsigned DiagCurBuffer = DiagSrcMgr.FindBufferContainingLoc(DiagLoc);
-  if (!Parser->SavedDiagHandler && DiagCurBuffer &&
-      DiagCurBuffer != DiagSrcMgr.getMainFileID()) {
-    SMLoc ParentIncludeLoc = DiagSrcMgr.getParentIncludeLoc(DiagCurBuffer);
-    DiagSrcMgr.PrintIncludeStack(ParentIncludeLoc, OS);
-  }
-
-  // If we have not parsed a cpp hash line filename comment or the source
-  // manager changed or buffer changed (like in a nested include) then just
-  // print the normal diagnostic using its Filename and LineNo.
-  if (!Parser->CppHashInfo.LineNumber || &DiagSrcMgr != &Parser->SrcMgr ||
-      DiagBuf != CppHashBuf) {
-    if (Parser->SavedDiagHandler)
-      Parser->SavedDiagHandler(Diag, Parser->SavedDiagContext);
-    else
-      Diag.print(nullptr, OS);
-    return;
-  }
-
-  // Use the CppHashFilename and calculate a line number based on the
-  // CppHashInfo.Loc and CppHashInfo.LineNumber relative to this Diag's SMLoc
-  // for the diagnostic.
-  const std::string &Filename = Parser->CppHashInfo.Filename;
-
-  int DiagLocLineNo = DiagSrcMgr.FindLineNumber(DiagLoc, DiagBuf);
-  int CppHashLocLineNo =
-      Parser->SrcMgr.FindLineNumber(Parser->CppHashInfo.Loc, CppHashBuf);
-  int LineNo =
-      Parser->CppHashInfo.LineNumber - 1 + (DiagLocLineNo - CppHashLocLineNo);
-
-  SMDiagnostic NewDiag(*Diag.getSourceMgr(), Diag.getLoc(), Filename, LineNo,
-                       Diag.getColumnNo(), Diag.getKind(), Diag.getMessage(),
-                       Diag.getLineContents(), Diag.getRanges());
-
-  if (Parser->SavedDiagHandler)
-    Parser->SavedDiagHandler(NewDiag, Parser->SavedDiagContext);
-  else
-    NewDiag.print(nullptr, OS);
-}
-
-// FIXME: This is mostly duplicated from the function in AsmLexer.cpp. The
-// difference being that that function accepts '@' as part of identifiers and
-// we can't do that. AsmLexer.cpp should probably be changed to handle
-// '@' as a special case when needed.
-static bool isIdentifierChar(char c) {
-  return isalnum(static_cast<unsigned char>(c)) || c == '_' || c == '$' ||
-         c == '.';
-}
-
-bool AsmParser::expandMacro(raw_svector_ostream &OS, StringRef Body,
-                            ArrayRef<MCAsmMacroParameter> Parameters,
-                            ArrayRef<MCAsmMacroArgument> A,
-                            bool EnableAtPseudoVariable, SMLoc L) {
-  unsigned NParameters = Parameters.size();
-  bool HasVararg = NParameters ? Parameters.back().Vararg : false;
-  if ((!IsDarwin || NParameters != 0) && NParameters != A.size())
-    return Error(L, "Wrong number of arguments");
-
-  // A macro without parameters is handled differently on Darwin:
-  // gas accepts no arguments and does no substitutions
-  while (!Body.empty()) {
-    // Scan for the next substitution.
-    std::size_t End = Body.size(), Pos = 0;
-    for (; Pos != End; ++Pos) {
-      // Check for a substitution or escape.
-      if (IsDarwin && !NParameters) {
-        // This macro has no parameters, look for $0, $1, etc.
-        if (Body[Pos] != '$' || Pos + 1 == End)
-          continue;
-
-        char Next = Body[Pos + 1];
-        if (Next == '$' || Next == 'n' ||
-            isdigit(static_cast<unsigned char>(Next)))
-          break;
-      } else {
-        // This macro has parameters, look for \foo, \bar, etc.
-        if (Body[Pos] == '\\' && Pos + 1 != End)
-          break;
-      }
-    }
-
-    // Add the prefix.
-    OS << Body.slice(0, Pos);
-
-    // Check if we reached the end.
-    if (Pos == End)
-      break;
-
-    if (IsDarwin && !NParameters) {
-      switch (Body[Pos + 1]) {
-      // $$ => $
-      case '$':
-        OS << '$';
-        break;
-
-      // $n => number of arguments
-      case 'n':
-        OS << A.size();
-        break;
-
-      // $[0-9] => argument
-      default: {
-        // Missing arguments are ignored.
-        unsigned Index = Body[Pos + 1] - '0';
-        if (Index >= A.size())
-          break;
-
-        // Otherwise substitute with the token values, with spaces eliminated.
-        for (const AsmToken &Token : A[Index])
-          OS << Token.getString();
-        break;
-      }
-      }
-      Pos += 2;
-    } else {
-      unsigned I = Pos + 1;
-
-      // Check for the \@ pseudo-variable.
-      if (EnableAtPseudoVariable && Body[I] == '@' && I + 1 != End)
-        ++I;
-      else
-        while (isIdentifierChar(Body[I]) && I + 1 != End)
-          ++I;
-
-      const char *Begin = Body.data() + Pos + 1;
-      StringRef Argument(Begin, I - (Pos + 1));
-      unsigned Index = 0;
-
-      if (Argument == "@") {
-        OS << NumOfMacroInstantiations;
-        Pos += 2;
-      } else {
-        for (; Index < NParameters; ++Index)
-          if (Parameters[Index].Name == Argument)
-            break;
-
-        if (Index == NParameters) {
-          if (Body[Pos + 1] == '(' && Body[Pos + 2] == ')')
-            Pos += 3;
-          else {
-            OS << '\\' << Argument;
-            Pos = I;
-          }
-        } else {
-          bool VarargParameter = HasVararg && Index == (NParameters - 1);
-          for (const AsmToken &Token : A[Index])
-            // For altmacro mode, you can write '%expr'.
-            // The prefix '%' evaluates the expression 'expr'
-            // and uses the result as a string (e.g. replace %(1+2) with the
-            // string "3").
-            // Here, we identify the integer token which is the result of the
-            // absolute expression evaluation and replace it with its string
-            // representation.
-            if (AltMacroMode && Token.getString().front() == '%' &&
-                Token.is(AsmToken::Integer))
-              // Emit an integer value to the buffer.
-              OS << Token.getIntVal();
-            // Only Token that was validated as a string and begins with '<'
-            // is considered altMacroString!!!
-            else if (AltMacroMode && Token.getString().front() == '<' &&
-                     Token.is(AsmToken::String)) {
-              OS << altMacroString(Token.getStringContents());
-            }
-            // We expect no quotes around the string's contents when
-            // parsing for varargs.
-            else if (Token.isNot(AsmToken::String) || VarargParameter)
-              OS << Token.getString();
-            else
-              OS << Token.getStringContents();
-
-          Pos += 1 + Argument.size();
-        }
-      }
-    }
-    // Update the scan point.
-    Body = Body.substr(Pos);
-  }
-
-  return false;
-}
-
-MacroInstantiation::MacroInstantiation(SMLoc IL, int EB, SMLoc EL,
-                                       size_t CondStackDepth)
-    : InstantiationLoc(IL), ExitBuffer(EB), ExitLoc(EL),
-      CondStackDepth(CondStackDepth) {}
-
-static bool isOperator(AsmToken::TokenKind kind) {
-  switch (kind) {
-  default:
-    return false;
-  case AsmToken::Plus:
-  case AsmToken::Minus:
-  case AsmToken::Tilde:
-  case AsmToken::Slash:
-  case AsmToken::Star:
-  case AsmToken::Dot:
-  case AsmToken::Equal:
-  case AsmToken::EqualEqual:
-  case AsmToken::Pipe:
-  case AsmToken::PipePipe:
-  case AsmToken::Caret:
-  case AsmToken::Amp:
-  case AsmToken::AmpAmp:
-  case AsmToken::Exclaim:
-  case AsmToken::ExclaimEqual:
-  case AsmToken::Less:
-  case AsmToken::LessEqual:
-  case AsmToken::LessLess:
-  case AsmToken::LessGreater:
-  case AsmToken::Greater:
-  case AsmToken::GreaterEqual:
-  case AsmToken::GreaterGreater:
-    return true;
-  }
-}
-
-namespace {
-
-class AsmLexerSkipSpaceRAII {
-public:
-  AsmLexerSkipSpaceRAII(AsmLexer &Lexer, bool SkipSpace) : Lexer(Lexer) {
-    Lexer.setSkipSpace(SkipSpace);
-  }
-
-  ~AsmLexerSkipSpaceRAII() {
-    Lexer.setSkipSpace(true);
-  }
-
-private:
-  AsmLexer &Lexer;
-};
-
-} // end anonymous namespace
-
-bool AsmParser::parseMacroArgument(MCAsmMacroArgument &MA, bool Vararg) {
-
-  if (Vararg) {
-    if (Lexer.isNot(AsmToken::EndOfStatement)) {
-      StringRef Str = parseStringToEndOfStatement();
-      MA.emplace_back(AsmToken::String, Str);
-    }
-    return false;
-  }
-
-  unsigned ParenLevel = 0;
-
-  // Darwin doesn't use spaces to delmit arguments.
-  AsmLexerSkipSpaceRAII ScopedSkipSpace(Lexer, IsDarwin);
-
-  bool SpaceEaten;
-
-  while (true) {
-    SpaceEaten = false;
-    if (Lexer.is(AsmToken::Eof) || Lexer.is(AsmToken::Equal))
-      return TokError("unexpected token in macro instantiation");
-
-    if (ParenLevel == 0) {
-
-      if (Lexer.is(AsmToken::Comma))
-        break;
-
-      if (Lexer.is(AsmToken::Space)) {
-        SpaceEaten = true;
-        Lexer.Lex(); // Eat spaces
-      }
-
-      // Spaces can delimit parameters, but could also be part an expression.
-      // If the token after a space is an operator, add the token and the next
-      // one into this argument
-      if (!IsDarwin) {
-        if (isOperator(Lexer.getKind())) {
-          MA.push_back(getTok());
-          Lexer.Lex();
-
-          // Whitespace after an operator can be ignored.
-          if (Lexer.is(AsmToken::Space))
-            Lexer.Lex();
-
-          continue;
-        }
-      }
-      if (SpaceEaten)
-        break;
-    }
-
-    // handleMacroEntry relies on not advancing the lexer here
-    // to be able to fill in the remaining default parameter values
-    if (Lexer.is(AsmToken::EndOfStatement))
-      break;
-
-    // Adjust the current parentheses level.
-    if (Lexer.is(AsmToken::LParen))
-      ++ParenLevel;
-    else if (Lexer.is(AsmToken::RParen) && ParenLevel)
-      --ParenLevel;
-
-    // Append the token to the current argument list.
-    MA.push_back(getTok());
-    Lexer.Lex();
-  }
-
-  if (ParenLevel != 0)
-    return TokError("unbalanced parentheses in macro argument");
-  return false;
-}
-
-// Parse the macro instantiation arguments.
-bool AsmParser::parseMacroArguments(const MCAsmMacro *M,
-                                    MCAsmMacroArguments &A) {
-  const unsigned NParameters = M ? M->Parameters.size() : 0;
-  bool NamedParametersFound = false;
-  SmallVector<SMLoc, 4> FALocs;
-
-  A.resize(NParameters);
-  FALocs.resize(NParameters);
-
-  // Parse two kinds of macro invocations:
-  // - macros defined without any parameters accept an arbitrary number of them
-  // - macros defined with parameters accept at most that many of them
-  bool HasVararg = NParameters ? M->Parameters.back().Vararg : false;
-  for (unsigned Parameter = 0; !NParameters || Parameter < NParameters;
-       ++Parameter) {
-    SMLoc IDLoc = Lexer.getLoc();
-    MCAsmMacroParameter FA;
-
-    if (Lexer.is(AsmToken::Identifier) && Lexer.peekTok().is(AsmToken::Equal)) {
-      if (parseIdentifier(FA.Name))
-        return Error(IDLoc, "invalid argument identifier for formal argument");
-
-      if (Lexer.isNot(AsmToken::Equal))
-        return TokError("expected '=' after formal parameter identifier");
-
-      Lex();
-
-      NamedParametersFound = true;
-    }
-    bool Vararg = HasVararg && Parameter == (NParameters - 1);
-
-    if (NamedParametersFound && FA.Name.empty())
-      return Error(IDLoc, "cannot mix positional and keyword arguments");
-
-    SMLoc StrLoc = Lexer.getLoc();
-    SMLoc EndLoc;
-    if (AltMacroMode && Lexer.is(AsmToken::Percent)) {
-      const MCExpr *AbsoluteExp;
-      int64_t Value;
-      /// Eat '%'
-      Lex();
-      if (parseExpression(AbsoluteExp, EndLoc))
-        return false;
-      if (!AbsoluteExp->evaluateAsAbsolute(Value,
-                                           getStreamer().getAssemblerPtr()))
-        return Error(StrLoc, "expected absolute expression");
-      const char *StrChar = StrLoc.getPointer();
-      const char *EndChar = EndLoc.getPointer();
-      AsmToken newToken(AsmToken::Integer,
-                        StringRef(StrChar, EndChar - StrChar), Value);
-      FA.Value.push_back(newToken);
-    } else if (AltMacroMode && Lexer.is(AsmToken::Less) &&
-               isAltmacroString(StrLoc, EndLoc)) {
-      const char *StrChar = StrLoc.getPointer();
-      const char *EndChar = EndLoc.getPointer();
-      jumpToLoc(EndLoc, CurBuffer);
-      /// Eat from '<' to '>'
-      Lex();
-      AsmToken newToken(AsmToken::String,
-                        StringRef(StrChar, EndChar - StrChar));
-      FA.Value.push_back(newToken);
-    } else if(parseMacroArgument(FA.Value, Vararg))
-      return true;
-
-    unsigned PI = Parameter;
-    if (!FA.Name.empty()) {
-      unsigned FAI = 0;
-      for (FAI = 0; FAI < NParameters; ++FAI)
-        if (M->Parameters[FAI].Name == FA.Name)
-          break;
-
-      if (FAI >= NParameters) {
-        assert(M && "expected macro to be defined");
-        return Error(IDLoc, "parameter named '" + FA.Name +
-                                "' does not exist for macro '" + M->Name + "'");
-      }
-      PI = FAI;
-    }
-
-    if (!FA.Value.empty()) {
-      if (A.size() <= PI)
-        A.resize(PI + 1);
-      A[PI] = FA.Value;
-
-      if (FALocs.size() <= PI)
-        FALocs.resize(PI + 1);
-
-      FALocs[PI] = Lexer.getLoc();
-    }
-
-    // At the end of the statement, fill in remaining arguments that have
-    // default values. If there aren't any, then the next argument is
-    // required but missing
-    if (Lexer.is(AsmToken::EndOfStatement)) {
-      bool Failure = false;
-      for (unsigned FAI = 0; FAI < NParameters; ++FAI) {
-        if (A[FAI].empty()) {
-          if (M->Parameters[FAI].Required) {
-            Error(FALocs[FAI].isValid() ? FALocs[FAI] : Lexer.getLoc(),
-                  "missing value for required parameter "
-                  "'" + M->Parameters[FAI].Name + "' in macro '" + M->Name + "'");
-            Failure = true;
-          }
-
-          if (!M->Parameters[FAI].Value.empty())
-            A[FAI] = M->Parameters[FAI].Value;
-        }
-      }
-      return Failure;
-    }
-
-    if (Lexer.is(AsmToken::Comma))
-      Lex();
-  }
-
-  return TokError("too many positional arguments");
-}
-
-bool AsmParser::handleMacroEntry(const MCAsmMacro *M, SMLoc NameLoc) {
-  // Arbitrarily limit macro nesting depth (default matches 'as'). We can
-  // eliminate this, although we should protect against infinite loops.
-  unsigned MaxNestingDepth = AsmMacroMaxNestingDepth;
-  if (ActiveMacros.size() == MaxNestingDepth) {
-    std::ostringstream MaxNestingDepthError;
-    MaxNestingDepthError << "macros cannot be nested more than "
-                         << MaxNestingDepth << " levels deep."
-                         << " Use -asm-macro-max-nesting-depth to increase "
-                            "this limit.";
-    return TokError(MaxNestingDepthError.str());
-  }
-
-  MCAsmMacroArguments A;
-  if (parseMacroArguments(M, A))
-    return true;
-
-  // Macro instantiation is lexical, unfortunately. We construct a new buffer
-  // to hold the macro body with substitutions.
-  SmallString<256> Buf;
-  StringRef Body = M->Body;
-  raw_svector_ostream OS(Buf);
-
-  if (expandMacro(OS, Body, M->Parameters, A, true, getTok().getLoc()))
-    return true;
-
-  // We include the .endmacro in the buffer as our cue to exit the macro
-  // instantiation.
-  OS << ".endmacro\n";
-
-  std::unique_ptr<MemoryBuffer> Instantiation =
-      MemoryBuffer::getMemBufferCopy(OS.str(), "<instantiation>");
-
-  // Create the macro instantiation object and add to the current macro
-  // instantiation stack.
-  MacroInstantiation *MI = new MacroInstantiation(
-      NameLoc, CurBuffer, getTok().getLoc(), TheCondStack.size());
-  ActiveMacros.push_back(MI);
-
-  ++NumOfMacroInstantiations;
-
-  // Jump to the macro instantiation and prime the lexer.
-  CurBuffer = SrcMgr.AddNewSourceBuffer(std::move(Instantiation), SMLoc());
-  Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer)->getBuffer());
-  Lex();
-
-  return false;
-}
-
-void AsmParser::handleMacroExit() {
-  // Jump to the EndOfStatement we should return to, and consume it.
-  jumpToLoc(ActiveMacros.back()->ExitLoc, ActiveMacros.back()->ExitBuffer);
-  Lex();
-
-  // Pop the instantiation entry.
-  delete ActiveMacros.back();
-  ActiveMacros.pop_back();
-}
-
-bool AsmParser::parseAssignment(StringRef Name, bool allow_redef,
-                                bool NoDeadStrip) {
-  MCSymbol *Sym;
-  const MCExpr *Value;
-  if (MCParserUtils::parseAssignmentExpression(Name, allow_redef, *this, Sym,
-                                               Value))
-    return true;
-
-  if (!Sym) {
-    // In the case where we parse an expression starting with a '.', we will
-    // not generate an error, nor will we create a symbol.  In this case we
-    // should just return out.
-    return false;
-  }
-
-  // Do the assignment.
-  Out.EmitAssignment(Sym, Value);
-  if (NoDeadStrip)
-    Out.EmitSymbolAttribute(Sym, MCSA_NoDeadStrip);
-
-  return false;
-}
-
-/// parseIdentifier:
-///   ::= identifier
-///   ::= string
-bool AsmParser::parseIdentifier(StringRef &Res) {
-  // The assembler has relaxed rules for accepting identifiers, in particular we
-  // allow things like '.globl $foo' and '.def @feat.00', which would normally be
-  // separate tokens. At this level, we have already lexed so we cannot (currently)
-  // handle this as a context dependent token, instead we detect adjacent tokens
-  // and return the combined identifier.
-  if (Lexer.is(AsmToken::Dollar) || Lexer.is(AsmToken::At)) {
-    SMLoc PrefixLoc = getLexer().getLoc();
-
-    // Consume the prefix character, and check for a following identifier.
-
-    AsmToken Buf[1];
-    Lexer.peekTokens(Buf, false);
-
-    if (Buf[0].isNot(AsmToken::Identifier))
-      return true;
-
-    // We have a '$' or '@' followed by an identifier, make sure they are adjacent.
-    if (PrefixLoc.getPointer() + 1 != Buf[0].getLoc().getPointer())
-      return true;
-
-    // eat $ or @
-    Lexer.Lex(); // Lexer's Lex guarantees consecutive token.
-    // Construct the joined identifier and consume the token.
-    Res =
-        StringRef(PrefixLoc.getPointer(), getTok().getIdentifier().size() + 1);
-    Lex(); // Parser Lex to maintain invariants.
-    return false;
-  }
-
-  if (Lexer.isNot(AsmToken::Identifier) && Lexer.isNot(AsmToken::String))
-    return true;
-
-  Res = getTok().getIdentifier();
-
-  Lex(); // Consume the identifier token.
-
-  return false;
-}
-
-/// parseDirectiveSet:
-///   ::= .equ identifier ',' expression
-///   ::= .equiv identifier ',' expression
-///   ::= .set identifier ',' expression
-bool AsmParser::parseDirectiveSet(StringRef IDVal, bool allow_redef) {
-  StringRef Name;
-  if (check(parseIdentifier(Name), "expected identifier") ||
-      parseToken(AsmToken::Comma) || parseAssignment(Name, allow_redef, true))
-    return addErrorSuffix(" in '" + Twine(IDVal) + "' directive");
-  return false;
-}
-
-bool AsmParser::parseEscapedString(std::string &Data) {
-  if (check(getTok().isNot(AsmToken::String), "expected string"))
-    return true;
-
-  Data = "";
-  StringRef Str = getTok().getStringContents();
-  for (unsigned i = 0, e = Str.size(); i != e; ++i) {
-    if (Str[i] != '\\') {
-      Data += Str[i];
-      continue;
-    }
-
-    // Recognize escaped characters. Note that this escape semantics currently
-    // loosely follows Darwin 'as'. Notably, it doesn't support hex escapes.
-    ++i;
-    if (i == e)
-      return TokError("unexpected backslash at end of string");
-
-    // Recognize octal sequences.
-    if ((unsigned)(Str[i] - '0') <= 7) {
-      // Consume up to three octal characters.
-      unsigned Value = Str[i] - '0';
-
-      if (i + 1 != e && ((unsigned)(Str[i + 1] - '0')) <= 7) {
-        ++i;
-        Value = Value * 8 + (Str[i] - '0');
-
-        if (i + 1 != e && ((unsigned)(Str[i + 1] - '0')) <= 7) {
-          ++i;
-          Value = Value * 8 + (Str[i] - '0');
-        }
-      }
-
-      if (Value > 255)
-        return TokError("invalid octal escape sequence (out of range)");
-
-      Data += (unsigned char)Value;
-      continue;
-    }
-
-    // Otherwise recognize individual escapes.
-    switch (Str[i]) {
-    default:
-      // Just reject invalid escape sequences for now.
-      return TokError("invalid escape sequence (unrecognized character)");
-
-    case 'b': Data += '\b'; break;
-    case 'f': Data += '\f'; break;
-    case 'n': Data += '\n'; break;
-    case 'r': Data += '\r'; break;
-    case 't': Data += '\t'; break;
-    case '"': Data += '"'; break;
-    case '\\': Data += '\\'; break;
-    }
-  }
-
-  Lex();
-  return false;
-}
-
-/// parseDirectiveAscii:
-///   ::= ( .ascii | .asciz | .string ) [ "string" ( , "string" )* ]
-bool AsmParser::parseDirectiveAscii(StringRef IDVal, bool ZeroTerminated) {
-  auto parseOp = [&]() -> bool {
-    std::string Data;
-    if (checkForValidSection() || parseEscapedString(Data))
-      return true;
-    getStreamer().EmitBytes(Data);
-    if (ZeroTerminated)
-      getStreamer().EmitBytes(StringRef("\0", 1));
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in '" + Twine(IDVal) + "' directive");
-  return false;
-}
-
-/// parseDirectiveReloc
-///  ::= .reloc expression , identifier [ , expression ]
-bool AsmParser::parseDirectiveReloc(SMLoc DirectiveLoc) {
-  const MCExpr *Offset;
-  const MCExpr *Expr = nullptr;
-  int64_t OffsetValue;
-  SMLoc OffsetLoc = Lexer.getTok().getLoc();
-
-  if (parseExpression(Offset))
-    return true;
-
-  if ((Offset->evaluateAsAbsolute(OffsetValue,
-                                  getStreamer().getAssemblerPtr()) &&
-       check(OffsetValue < 0, OffsetLoc, "expression is negative")) ||
-      (check(Offset->getKind() != llvm::MCExpr::Constant &&
-             Offset->getKind() != llvm::MCExpr::SymbolRef,
-             OffsetLoc, "expected non-negative number or a label")) ||
-      (parseToken(AsmToken::Comma, "expected comma") ||
-       check(getTok().isNot(AsmToken::Identifier), "expected relocation name")))
-    return true;
-
-  SMLoc NameLoc = Lexer.getTok().getLoc();
-  StringRef Name = Lexer.getTok().getIdentifier();
-  Lex();
-
-  if (Lexer.is(AsmToken::Comma)) {
-    Lex();
-    SMLoc ExprLoc = Lexer.getLoc();
-    if (parseExpression(Expr))
-      return true;
-
-    MCValue Value;
-    if (!Expr->evaluateAsRelocatable(Value, nullptr, nullptr))
-      return Error(ExprLoc, "expression must be relocatable");
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in .reloc directive"))
-      return true;
-
-  const MCTargetAsmParser &MCT = getTargetParser();
-  const MCSubtargetInfo &STI = MCT.getSTI();
-  if (getStreamer().EmitRelocDirective(*Offset, Name, Expr, DirectiveLoc, STI))
-    return Error(NameLoc, "unknown relocation name");
-
-  return false;
-}
-
-/// parseDirectiveValue
-///  ::= (.byte | .short | ... ) [ expression (, expression)* ]
-bool AsmParser::parseDirectiveValue(StringRef IDVal, unsigned Size) {
-  auto parseOp = [&]() -> bool {
-    const MCExpr *Value;
-    SMLoc ExprLoc = getLexer().getLoc();
-    if (checkForValidSection() || parseExpression(Value))
-      return true;
-    // Special case constant expressions to match code generator.
-    if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
-      assert(Size <= 8 && "Invalid size");
-      uint64_t IntValue = MCE->getValue();
-      if (!isUIntN(8 * Size, IntValue) && !isIntN(8 * Size, IntValue))
-        return Error(ExprLoc, "out of range literal value");
-      getStreamer().EmitIntValue(IntValue, Size);
-    } else
-      getStreamer().EmitValue(Value, Size, ExprLoc);
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in '" + Twine(IDVal) + "' directive");
-  return false;
-}
-
-static bool parseHexOcta(AsmParser &Asm, uint64_t &hi, uint64_t &lo) {
-  if (Asm.getTok().isNot(AsmToken::Integer) &&
-      Asm.getTok().isNot(AsmToken::BigNum))
-    return Asm.TokError("unknown token in expression");
-  SMLoc ExprLoc = Asm.getTok().getLoc();
-  APInt IntValue = Asm.getTok().getAPIntVal();
-  Asm.Lex();
-  if (!IntValue.isIntN(128))
-    return Asm.Error(ExprLoc, "out of range literal value");
-  if (!IntValue.isIntN(64)) {
-    hi = IntValue.getHiBits(IntValue.getBitWidth() - 64).getZExtValue();
-    lo = IntValue.getLoBits(64).getZExtValue();
-  } else {
-    hi = 0;
-    lo = IntValue.getZExtValue();
-  }
-  return false;
-}
-
-/// ParseDirectiveOctaValue
-///  ::= .octa [ hexconstant (, hexconstant)* ]
-
-bool AsmParser::parseDirectiveOctaValue(StringRef IDVal) {
-  auto parseOp = [&]() -> bool {
-    if (checkForValidSection())
-      return true;
-    uint64_t hi, lo;
-    if (parseHexOcta(*this, hi, lo))
-      return true;
-    if (MAI.isLittleEndian()) {
-      getStreamer().EmitIntValue(lo, 8);
-      getStreamer().EmitIntValue(hi, 8);
-    } else {
-      getStreamer().EmitIntValue(hi, 8);
-      getStreamer().EmitIntValue(lo, 8);
-    }
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in '" + Twine(IDVal) + "' directive");
-  return false;
-}
-
-bool AsmParser::parseRealValue(const fltSemantics &Semantics, APInt &Res) {
-  // We don't truly support arithmetic on floating point expressions, so we
-  // have to manually parse unary prefixes.
-  bool IsNeg = false;
-  if (getLexer().is(AsmToken::Minus)) {
-    Lexer.Lex();
-    IsNeg = true;
-  } else if (getLexer().is(AsmToken::Plus))
-    Lexer.Lex();
-
-  if (Lexer.is(AsmToken::Error))
-    return TokError(Lexer.getErr());
-  if (Lexer.isNot(AsmToken::Integer) && Lexer.isNot(AsmToken::Real) &&
-      Lexer.isNot(AsmToken::Identifier))
-    return TokError("unexpected token in directive");
-
-  // Convert to an APFloat.
-  APFloat Value(Semantics);
-  StringRef IDVal = getTok().getString();
-  if (getLexer().is(AsmToken::Identifier)) {
-    if (!IDVal.compare_lower("infinity") || !IDVal.compare_lower("inf"))
-      Value = APFloat::getInf(Semantics);
-    else if (!IDVal.compare_lower("nan"))
-      Value = APFloat::getNaN(Semantics, false, ~0);
-    else
-      return TokError("invalid floating point literal");
-  } else if (Value.convertFromString(IDVal, APFloat::rmNearestTiesToEven) ==
-             APFloat::opInvalidOp)
-    return TokError("invalid floating point literal");
-  if (IsNeg)
-    Value.changeSign();
-
-  // Consume the numeric token.
-  Lex();
-
-  Res = Value.bitcastToAPInt();
-
-  return false;
-}
-
-/// parseDirectiveRealValue
-///  ::= (.single | .double) [ expression (, expression)* ]
-bool AsmParser::parseDirectiveRealValue(StringRef IDVal,
-                                        const fltSemantics &Semantics) {
-  auto parseOp = [&]() -> bool {
-    APInt AsInt;
-    if (checkForValidSection() || parseRealValue(Semantics, AsInt))
-      return true;
-    getStreamer().EmitIntValue(AsInt.getLimitedValue(),
-                               AsInt.getBitWidth() / 8);
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in '" + Twine(IDVal) + "' directive");
-  return false;
-}
-
-/// parseDirectiveZero
-///  ::= .zero expression
-bool AsmParser::parseDirectiveZero() {
-  SMLoc NumBytesLoc = Lexer.getLoc();
-  const MCExpr *NumBytes;
-  if (checkForValidSection() || parseExpression(NumBytes))
-    return true;
-
-  int64_t Val = 0;
-  if (getLexer().is(AsmToken::Comma)) {
-    Lex();
-    if (parseAbsoluteExpression(Val))
-      return true;
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.zero' directive"))
-    return true;
-  getStreamer().emitFill(*NumBytes, Val, NumBytesLoc);
-
-  return false;
-}
-
-/// parseDirectiveFill
-///  ::= .fill expression [ , expression [ , expression ] ]
-bool AsmParser::parseDirectiveFill() {
-  SMLoc NumValuesLoc = Lexer.getLoc();
-  const MCExpr *NumValues;
-  if (checkForValidSection() || parseExpression(NumValues))
-    return true;
-
-  int64_t FillSize = 1;
-  int64_t FillExpr = 0;
-
-  SMLoc SizeLoc, ExprLoc;
-
-  if (parseOptionalToken(AsmToken::Comma)) {
-    SizeLoc = getTok().getLoc();
-    if (parseAbsoluteExpression(FillSize))
-      return true;
-    if (parseOptionalToken(AsmToken::Comma)) {
-      ExprLoc = getTok().getLoc();
-      if (parseAbsoluteExpression(FillExpr))
-        return true;
-    }
-  }
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.fill' directive"))
-    return true;
-
-  if (FillSize < 0) {
-    Warning(SizeLoc, "'.fill' directive with negative size has no effect");
-    return false;
-  }
-  if (FillSize > 8) {
-    Warning(SizeLoc, "'.fill' directive with size greater than 8 has been truncated to 8");
-    FillSize = 8;
-  }
-
-  if (!isUInt<32>(FillExpr) && FillSize > 4)
-    Warning(ExprLoc, "'.fill' directive pattern has been truncated to 32-bits");
-
-  getStreamer().emitFill(*NumValues, FillSize, FillExpr, NumValuesLoc);
-
-  return false;
-}
-
-/// parseDirectiveOrg
-///  ::= .org expression [ , expression ]
-bool AsmParser::parseDirectiveOrg() {
-  const MCExpr *Offset;
-  SMLoc OffsetLoc = Lexer.getLoc();
-  if (checkForValidSection() || parseExpression(Offset))
-    return true;
-
-  // Parse optional fill expression.
-  int64_t FillExpr = 0;
-  if (parseOptionalToken(AsmToken::Comma))
-    if (parseAbsoluteExpression(FillExpr))
-      return addErrorSuffix(" in '.org' directive");
-  if (parseToken(AsmToken::EndOfStatement))
-    return addErrorSuffix(" in '.org' directive");
-
-  getStreamer().emitValueToOffset(Offset, FillExpr, OffsetLoc);
-  return false;
-}
-
-/// parseDirectiveAlign
-///  ::= {.align, ...} expression [ , expression [ , expression ]]
-bool AsmParser::parseDirectiveAlign(bool IsPow2, unsigned ValueSize) {
-  SMLoc AlignmentLoc = getLexer().getLoc();
-  int64_t Alignment;
-  SMLoc MaxBytesLoc;
-  bool HasFillExpr = false;
-  int64_t FillExpr = 0;
-  int64_t MaxBytesToFill = 0;
-
-  auto parseAlign = [&]() -> bool {
-    if (parseAbsoluteExpression(Alignment))
-      return true;
-    if (parseOptionalToken(AsmToken::Comma)) {
-      // The fill expression can be omitted while specifying a maximum number of
-      // alignment bytes, e.g:
-      //  .align 3,,4
-      if (getTok().isNot(AsmToken::Comma)) {
-        HasFillExpr = true;
-        if (parseAbsoluteExpression(FillExpr))
-          return true;
-      }
-      if (parseOptionalToken(AsmToken::Comma))
-        if (parseTokenLoc(MaxBytesLoc) ||
-            parseAbsoluteExpression(MaxBytesToFill))
-          return true;
-    }
-    return parseToken(AsmToken::EndOfStatement);
-  };
-
-  if (checkForValidSection())
-    return addErrorSuffix(" in directive");
-  // Ignore empty '.p2align' directives for GNU-as compatibility
-  if (IsPow2 && (ValueSize == 1) && getTok().is(AsmToken::EndOfStatement)) {
-    Warning(AlignmentLoc, "p2align directive with no operand(s) is ignored");
-    return parseToken(AsmToken::EndOfStatement);
-  }
-  if (parseAlign())
-    return addErrorSuffix(" in directive");
-
-  // Always emit an alignment here even if we thrown an error.
-  bool ReturnVal = false;
-
-  // Compute alignment in bytes.
-  if (IsPow2) {
-    // FIXME: Diagnose overflow.
-    if (Alignment >= 32) {
-      ReturnVal |= Error(AlignmentLoc, "invalid alignment value");
-      Alignment = 31;
-    }
-
-    Alignment = 1ULL << Alignment;
-  } else {
-    // Reject alignments that aren't either a power of two or zero,
-    // for gas compatibility. Alignment of zero is silently rounded
-    // up to one.
-    if (Alignment == 0)
-      Alignment = 1;
-    if (!isPowerOf2_64(Alignment))
-      ReturnVal |= Error(AlignmentLoc, "alignment must be a power of 2");
-  }
-
-  // Diagnose non-sensical max bytes to align.
-  if (MaxBytesLoc.isValid()) {
-    if (MaxBytesToFill < 1) {
-      ReturnVal |= Error(MaxBytesLoc,
-                         "alignment directive can never be satisfied in this "
-                         "many bytes, ignoring maximum bytes expression");
-      MaxBytesToFill = 0;
-    }
-
-    if (MaxBytesToFill >= Alignment) {
-      Warning(MaxBytesLoc, "maximum bytes expression exceeds alignment and "
-                           "has no effect");
-      MaxBytesToFill = 0;
-    }
-  }
-
-  // Check whether we should use optimal code alignment for this .align
-  // directive.
-  const MCSection *Section = getStreamer().getCurrentSectionOnly();
-  assert(Section && "must have section to emit alignment");
-  bool UseCodeAlign = Section->UseCodeAlign();
-  if ((!HasFillExpr || Lexer.getMAI().getTextAlignFillValue() == FillExpr) &&
-      ValueSize == 1 && UseCodeAlign) {
-    getStreamer().EmitCodeAlignment(Alignment, MaxBytesToFill);
-  } else {
-    // FIXME: Target specific behavior about how the "extra" bytes are filled.
-    getStreamer().EmitValueToAlignment(Alignment, FillExpr, ValueSize,
-                                       MaxBytesToFill);
-  }
-
-  return ReturnVal;
-}
-
-/// parseDirectiveFile
-/// ::= .file filename
-/// ::= .file number [directory] filename [md5 checksum] [source source-text]
-bool AsmParser::parseDirectiveFile(SMLoc DirectiveLoc) {
-  // FIXME: I'm not sure what this is.
-  int64_t FileNumber = -1;
-  if (getLexer().is(AsmToken::Integer)) {
-    FileNumber = getTok().getIntVal();
-    Lex();
-
-    if (FileNumber < 0)
-      return TokError("negative file number");
-  }
-
-  std::string Path;
-
-  // Usually the directory and filename together, otherwise just the directory.
-  // Allow the strings to have escaped octal character sequence.
-  if (check(getTok().isNot(AsmToken::String),
-            "unexpected token in '.file' directive") ||
-      parseEscapedString(Path))
-    return true;
-
-  StringRef Directory;
-  StringRef Filename;
-  std::string FilenameData;
-  if (getLexer().is(AsmToken::String)) {
-    if (check(FileNumber == -1,
-              "explicit path specified, but no file number") ||
-        parseEscapedString(FilenameData))
-      return true;
-    Filename = FilenameData;
-    Directory = Path;
-  } else {
-    Filename = Path;
-  }
-
-  uint64_t MD5Hi, MD5Lo;
-  bool HasMD5 = false;
-
-  Optional<StringRef> Source;
-  bool HasSource = false;
-  std::string SourceString;
-
-  while (!parseOptionalToken(AsmToken::EndOfStatement)) {
-    StringRef Keyword;
-    if (check(getTok().isNot(AsmToken::Identifier),
-              "unexpected token in '.file' directive") ||
-        parseIdentifier(Keyword))
-      return true;
-    if (Keyword == "md5") {
-      HasMD5 = true;
-      if (check(FileNumber == -1,
-                "MD5 checksum specified, but no file number") ||
-          parseHexOcta(*this, MD5Hi, MD5Lo))
-        return true;
-    } else if (Keyword == "source") {
-      HasSource = true;
-      if (check(FileNumber == -1,
-                "source specified, but no file number") ||
-          check(getTok().isNot(AsmToken::String),
-                "unexpected token in '.file' directive") ||
-          parseEscapedString(SourceString))
-        return true;
-    } else {
-      return TokError("unexpected token in '.file' directive");
-    }
-  }
-
-  if (FileNumber == -1) {
-    // Ignore the directive if there is no number and the target doesn't support
-    // numberless .file directives. This allows some portability of assembler
-    // between different object file formats.
-    if (getContext().getAsmInfo()->hasSingleParameterDotFile())
-      getStreamer().EmitFileDirective(Filename);
-  } else {
-    // In case there is a -g option as well as debug info from directive .file,
-    // we turn off the -g option, directly use the existing debug info instead.
-    // Also reset any implicit ".file 0" for the assembler source.
-    if (Ctx.getGenDwarfForAssembly()) {
-      Ctx.getMCDwarfLineTable(0).resetRootFile();
-      Ctx.setGenDwarfForAssembly(false);
-    }
-
-    MD5::MD5Result *CKMem = nullptr;
-    if (HasMD5) {
-      CKMem = (MD5::MD5Result *)Ctx.allocate(sizeof(MD5::MD5Result), 1);
-      for (unsigned i = 0; i != 8; ++i) {
-        CKMem->Bytes[i] = uint8_t(MD5Hi >> ((7 - i) * 8));
-        CKMem->Bytes[i + 8] = uint8_t(MD5Lo >> ((7 - i) * 8));
-      }
-    }
-    if (HasSource) {
-      char *SourceBuf = static_cast<char *>(Ctx.allocate(SourceString.size()));
-      memcpy(SourceBuf, SourceString.data(), SourceString.size());
-      Source = StringRef(SourceBuf, SourceString.size());
-    }
-    if (FileNumber == 0) {
-      if (Ctx.getDwarfVersion() < 5)
-        return Warning(DirectiveLoc, "file 0 not supported prior to DWARF-5");
-      getStreamer().emitDwarfFile0Directive(Directory, Filename, CKMem, Source);
-    } else {
-      Expected<unsigned> FileNumOrErr = getStreamer().tryEmitDwarfFileDirective(
-          FileNumber, Directory, Filename, CKMem, Source);
-      if (!FileNumOrErr)
-        return Error(DirectiveLoc, toString(FileNumOrErr.takeError()));
-      FileNumber = FileNumOrErr.get();
-    }
-    // Alert the user if there are some .file directives with MD5 and some not.
-    // But only do that once.
-    if (!ReportedInconsistentMD5 && !Ctx.isDwarfMD5UsageConsistent(0)) {
-      ReportedInconsistentMD5 = true;
-      return Warning(DirectiveLoc, "inconsistent use of MD5 checksums");
-    }
-  }
-
-  return false;
-}
-
-/// parseDirectiveLine
-/// ::= .line [number]
-bool AsmParser::parseDirectiveLine() {
-  int64_t LineNumber;
-  if (getLexer().is(AsmToken::Integer)) {
-    if (parseIntToken(LineNumber, "unexpected token in '.line' directive"))
-      return true;
-    (void)LineNumber;
-    // FIXME: Do something with the .line.
-  }
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.line' directive"))
-    return true;
-
-  return false;
-}
-
-/// parseDirectiveLoc
-/// ::= .loc FileNumber [LineNumber] [ColumnPos] [basic_block] [prologue_end]
-///                                [epilogue_begin] [is_stmt VALUE] [isa VALUE]
-/// The first number is a file number, must have been previously assigned with
-/// a .file directive, the second number is the line number and optionally the
-/// third number is a column position (zero if not specified).  The remaining
-/// optional items are .loc sub-directives.
-bool AsmParser::parseDirectiveLoc() {
-  int64_t FileNumber = 0, LineNumber = 0;
-  SMLoc Loc = getTok().getLoc();
-  if (parseIntToken(FileNumber, "unexpected token in '.loc' directive") ||
-      check(FileNumber < 1 && Ctx.getDwarfVersion() < 5, Loc,
-            "file number less than one in '.loc' directive") ||
-      check(!getContext().isValidDwarfFileNumber(FileNumber), Loc,
-            "unassigned file number in '.loc' directive"))
-    return true;
-
-  // optional
-  if (getLexer().is(AsmToken::Integer)) {
-    LineNumber = getTok().getIntVal();
-    if (LineNumber < 0)
-      return TokError("line number less than zero in '.loc' directive");
-    Lex();
-  }
-
-  int64_t ColumnPos = 0;
-  if (getLexer().is(AsmToken::Integer)) {
-    ColumnPos = getTok().getIntVal();
-    if (ColumnPos < 0)
-      return TokError("column position less than zero in '.loc' directive");
-    Lex();
-  }
-
-  unsigned Flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0;
-  unsigned Isa = 0;
-  int64_t Discriminator = 0;
-
-  auto parseLocOp = [&]() -> bool {
-    StringRef Name;
-    SMLoc Loc = getTok().getLoc();
-    if (parseIdentifier(Name))
-      return TokError("unexpected token in '.loc' directive");
-
-    if (Name == "basic_block")
-      Flags |= DWARF2_FLAG_BASIC_BLOCK;
-    else if (Name == "prologue_end")
-      Flags |= DWARF2_FLAG_PROLOGUE_END;
-    else if (Name == "epilogue_begin")
-      Flags |= DWARF2_FLAG_EPILOGUE_BEGIN;
-    else if (Name == "is_stmt") {
-      Loc = getTok().getLoc();
-      const MCExpr *Value;
-      if (parseExpression(Value))
-        return true;
-      // The expression must be the constant 0 or 1.
-      if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
-        int Value = MCE->getValue();
-        if (Value == 0)
-          Flags &= ~DWARF2_FLAG_IS_STMT;
-        else if (Value == 1)
-          Flags |= DWARF2_FLAG_IS_STMT;
-        else
-          return Error(Loc, "is_stmt value not 0 or 1");
-      } else {
-        return Error(Loc, "is_stmt value not the constant value of 0 or 1");
-      }
-    } else if (Name == "isa") {
-      Loc = getTok().getLoc();
-      const MCExpr *Value;
-      if (parseExpression(Value))
-        return true;
-      // The expression must be a constant greater or equal to 0.
-      if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
-        int Value = MCE->getValue();
-        if (Value < 0)
-          return Error(Loc, "isa number less than zero");
-        Isa = Value;
-      } else {
-        return Error(Loc, "isa number not a constant value");
-      }
-    } else if (Name == "discriminator") {
-      if (parseAbsoluteExpression(Discriminator))
-        return true;
-    } else {
-      return Error(Loc, "unknown sub-directive in '.loc' directive");
-    }
-    return false;
-  };
-
-  if (parseMany(parseLocOp, false /*hasComma*/))
-    return true;
-
-  getStreamer().EmitDwarfLocDirective(FileNumber, LineNumber, ColumnPos, Flags,
-                                      Isa, Discriminator, StringRef());
-
-  return false;
-}
-
-/// parseDirectiveStabs
-/// ::= .stabs string, number, number, number
-bool AsmParser::parseDirectiveStabs() {
-  return TokError("unsupported directive '.stabs'");
-}
-
-/// parseDirectiveCVFile
-/// ::= .cv_file number filename [checksum] [checksumkind]
-bool AsmParser::parseDirectiveCVFile() {
-  SMLoc FileNumberLoc = getTok().getLoc();
-  int64_t FileNumber;
-  std::string Filename;
-  std::string Checksum;
-  int64_t ChecksumKind = 0;
-
-  if (parseIntToken(FileNumber,
-                    "expected file number in '.cv_file' directive") ||
-      check(FileNumber < 1, FileNumberLoc, "file number less than one") ||
-      check(getTok().isNot(AsmToken::String),
-            "unexpected token in '.cv_file' directive") ||
-      parseEscapedString(Filename))
-    return true;
-  if (!parseOptionalToken(AsmToken::EndOfStatement)) {
-    if (check(getTok().isNot(AsmToken::String),
-              "unexpected token in '.cv_file' directive") ||
-        parseEscapedString(Checksum) ||
-        parseIntToken(ChecksumKind,
-                      "expected checksum kind in '.cv_file' directive") ||
-        parseToken(AsmToken::EndOfStatement,
-                   "unexpected token in '.cv_file' directive"))
-      return true;
-  }
-
-  Checksum = fromHex(Checksum);
-  void *CKMem = Ctx.allocate(Checksum.size(), 1);
-  memcpy(CKMem, Checksum.data(), Checksum.size());
-  ArrayRef<uint8_t> ChecksumAsBytes(reinterpret_cast<const uint8_t *>(CKMem),
-                                    Checksum.size());
-
-  if (!getStreamer().EmitCVFileDirective(FileNumber, Filename, ChecksumAsBytes,
-                                         static_cast<uint8_t>(ChecksumKind)))
-    return Error(FileNumberLoc, "file number already allocated");
-
-  return false;
-}
-
-bool AsmParser::parseCVFunctionId(int64_t &FunctionId,
-                                  StringRef DirectiveName) {
-  SMLoc Loc;
-  return parseTokenLoc(Loc) ||
-         parseIntToken(FunctionId, "expected function id in '" + DirectiveName +
-                                       "' directive") ||
-         check(FunctionId < 0 || FunctionId >= UINT_MAX, Loc,
-               "expected function id within range [0, UINT_MAX)");
-}
-
-bool AsmParser::parseCVFileId(int64_t &FileNumber, StringRef DirectiveName) {
-  SMLoc Loc;
-  return parseTokenLoc(Loc) ||
-         parseIntToken(FileNumber, "expected integer in '" + DirectiveName +
-                                       "' directive") ||
-         check(FileNumber < 1, Loc, "file number less than one in '" +
-                                        DirectiveName + "' directive") ||
-         check(!getCVContext().isValidFileNumber(FileNumber), Loc,
-               "unassigned file number in '" + DirectiveName + "' directive");
-}
-
-/// parseDirectiveCVFuncId
-/// ::= .cv_func_id FunctionId
-///
-/// Introduces a function ID that can be used with .cv_loc.
-bool AsmParser::parseDirectiveCVFuncId() {
-  SMLoc FunctionIdLoc = getTok().getLoc();
-  int64_t FunctionId;
-
-  if (parseCVFunctionId(FunctionId, ".cv_func_id") ||
-      parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.cv_func_id' directive"))
-    return true;
-
-  if (!getStreamer().EmitCVFuncIdDirective(FunctionId))
-    return Error(FunctionIdLoc, "function id already allocated");
-
-  return false;
-}
-
-/// parseDirectiveCVInlineSiteId
-/// ::= .cv_inline_site_id FunctionId
-///         "within" IAFunc
-///         "inlined_at" IAFile IALine [IACol]
-///
-/// Introduces a function ID that can be used with .cv_loc. Includes "inlined
-/// at" source location information for use in the line table of the caller,
-/// whether the caller is a real function or another inlined call site.
-bool AsmParser::parseDirectiveCVInlineSiteId() {
-  SMLoc FunctionIdLoc = getTok().getLoc();
-  int64_t FunctionId;
-  int64_t IAFunc;
-  int64_t IAFile;
-  int64_t IALine;
-  int64_t IACol = 0;
-
-  // FunctionId
-  if (parseCVFunctionId(FunctionId, ".cv_inline_site_id"))
-    return true;
-
-  // "within"
-  if (check((getLexer().isNot(AsmToken::Identifier) ||
-             getTok().getIdentifier() != "within"),
-            "expected 'within' identifier in '.cv_inline_site_id' directive"))
-    return true;
-  Lex();
-
-  // IAFunc
-  if (parseCVFunctionId(IAFunc, ".cv_inline_site_id"))
-    return true;
-
-  // "inlined_at"
-  if (check((getLexer().isNot(AsmToken::Identifier) ||
-             getTok().getIdentifier() != "inlined_at"),
-            "expected 'inlined_at' identifier in '.cv_inline_site_id' "
-            "directive") )
-    return true;
-  Lex();
-
-  // IAFile IALine
-  if (parseCVFileId(IAFile, ".cv_inline_site_id") ||
-      parseIntToken(IALine, "expected line number after 'inlined_at'"))
-    return true;
-
-  // [IACol]
-  if (getLexer().is(AsmToken::Integer)) {
-    IACol = getTok().getIntVal();
-    Lex();
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.cv_inline_site_id' directive"))
-    return true;
-
-  if (!getStreamer().EmitCVInlineSiteIdDirective(FunctionId, IAFunc, IAFile,
-                                                 IALine, IACol, FunctionIdLoc))
-    return Error(FunctionIdLoc, "function id already allocated");
-
-  return false;
-}
-
-/// parseDirectiveCVLoc
-/// ::= .cv_loc FunctionId FileNumber [LineNumber] [ColumnPos] [prologue_end]
-///                                [is_stmt VALUE]
-/// The first number is a file number, must have been previously assigned with
-/// a .file directive, the second number is the line number and optionally the
-/// third number is a column position (zero if not specified).  The remaining
-/// optional items are .loc sub-directives.
-bool AsmParser::parseDirectiveCVLoc() {
-  SMLoc DirectiveLoc = getTok().getLoc();
-  int64_t FunctionId, FileNumber;
-  if (parseCVFunctionId(FunctionId, ".cv_loc") ||
-      parseCVFileId(FileNumber, ".cv_loc"))
-    return true;
-
-  int64_t LineNumber = 0;
-  if (getLexer().is(AsmToken::Integer)) {
-    LineNumber = getTok().getIntVal();
-    if (LineNumber < 0)
-      return TokError("line number less than zero in '.cv_loc' directive");
-    Lex();
-  }
-
-  int64_t ColumnPos = 0;
-  if (getLexer().is(AsmToken::Integer)) {
-    ColumnPos = getTok().getIntVal();
-    if (ColumnPos < 0)
-      return TokError("column position less than zero in '.cv_loc' directive");
-    Lex();
-  }
-
-  bool PrologueEnd = false;
-  uint64_t IsStmt = 0;
-
-  auto parseOp = [&]() -> bool {
-    StringRef Name;
-    SMLoc Loc = getTok().getLoc();
-    if (parseIdentifier(Name))
-      return TokError("unexpected token in '.cv_loc' directive");
-    if (Name == "prologue_end")
-      PrologueEnd = true;
-    else if (Name == "is_stmt") {
-      Loc = getTok().getLoc();
-      const MCExpr *Value;
-      if (parseExpression(Value))
-        return true;
-      // The expression must be the constant 0 or 1.
-      IsStmt = ~0ULL;
-      if (const auto *MCE = dyn_cast<MCConstantExpr>(Value))
-        IsStmt = MCE->getValue();
-
-      if (IsStmt > 1)
-        return Error(Loc, "is_stmt value not 0 or 1");
-    } else {
-      return Error(Loc, "unknown sub-directive in '.cv_loc' directive");
-    }
-    return false;
-  };
-
-  if (parseMany(parseOp, false /*hasComma*/))
-    return true;
-
-  getStreamer().EmitCVLocDirective(FunctionId, FileNumber, LineNumber,
-                                   ColumnPos, PrologueEnd, IsStmt, StringRef(),
-                                   DirectiveLoc);
-  return false;
-}
-
-/// parseDirectiveCVLinetable
-/// ::= .cv_linetable FunctionId, FnStart, FnEnd
-bool AsmParser::parseDirectiveCVLinetable() {
-  int64_t FunctionId;
-  StringRef FnStartName, FnEndName;
-  SMLoc Loc = getTok().getLoc();
-  if (parseCVFunctionId(FunctionId, ".cv_linetable") ||
-      parseToken(AsmToken::Comma,
-                 "unexpected token in '.cv_linetable' directive") ||
-      parseTokenLoc(Loc) || check(parseIdentifier(FnStartName), Loc,
-                                  "expected identifier in directive") ||
-      parseToken(AsmToken::Comma,
-                 "unexpected token in '.cv_linetable' directive") ||
-      parseTokenLoc(Loc) || check(parseIdentifier(FnEndName), Loc,
-                                  "expected identifier in directive"))
-    return true;
-
-  MCSymbol *FnStartSym = getContext().getOrCreateSymbol(FnStartName);
-  MCSymbol *FnEndSym = getContext().getOrCreateSymbol(FnEndName);
-
-  getStreamer().EmitCVLinetableDirective(FunctionId, FnStartSym, FnEndSym);
-  return false;
-}
-
-/// parseDirectiveCVInlineLinetable
-/// ::= .cv_inline_linetable PrimaryFunctionId FileId LineNum FnStart FnEnd
-bool AsmParser::parseDirectiveCVInlineLinetable() {
-  int64_t PrimaryFunctionId, SourceFileId, SourceLineNum;
-  StringRef FnStartName, FnEndName;
-  SMLoc Loc = getTok().getLoc();
-  if (parseCVFunctionId(PrimaryFunctionId, ".cv_inline_linetable") ||
-      parseTokenLoc(Loc) ||
-      parseIntToken(
-          SourceFileId,
-          "expected SourceField in '.cv_inline_linetable' directive") ||
-      check(SourceFileId <= 0, Loc,
-            "File id less than zero in '.cv_inline_linetable' directive") ||
-      parseTokenLoc(Loc) ||
-      parseIntToken(
-          SourceLineNum,
-          "expected SourceLineNum in '.cv_inline_linetable' directive") ||
-      check(SourceLineNum < 0, Loc,
-            "Line number less than zero in '.cv_inline_linetable' directive") ||
-      parseTokenLoc(Loc) || check(parseIdentifier(FnStartName), Loc,
-                                  "expected identifier in directive") ||
-      parseTokenLoc(Loc) || check(parseIdentifier(FnEndName), Loc,
-                                  "expected identifier in directive"))
-    return true;
-
-  if (parseToken(AsmToken::EndOfStatement, "Expected End of Statement"))
-    return true;
-
-  MCSymbol *FnStartSym = getContext().getOrCreateSymbol(FnStartName);
-  MCSymbol *FnEndSym = getContext().getOrCreateSymbol(FnEndName);
-  getStreamer().EmitCVInlineLinetableDirective(PrimaryFunctionId, SourceFileId,
-                                               SourceLineNum, FnStartSym,
-                                               FnEndSym);
-  return false;
-}
-
-/// parseDirectiveCVDefRange
-/// ::= .cv_def_range RangeStart RangeEnd (GapStart GapEnd)*, bytes*
-bool AsmParser::parseDirectiveCVDefRange() {
-  SMLoc Loc;
-  std::vector<std::pair<const MCSymbol *, const MCSymbol *>> Ranges;
-  while (getLexer().is(AsmToken::Identifier)) {
-    Loc = getLexer().getLoc();
-    StringRef GapStartName;
-    if (parseIdentifier(GapStartName))
-      return Error(Loc, "expected identifier in directive");
-    MCSymbol *GapStartSym = getContext().getOrCreateSymbol(GapStartName);
-
-    Loc = getLexer().getLoc();
-    StringRef GapEndName;
-    if (parseIdentifier(GapEndName))
-      return Error(Loc, "expected identifier in directive");
-    MCSymbol *GapEndSym = getContext().getOrCreateSymbol(GapEndName);
-
-    Ranges.push_back({GapStartSym, GapEndSym});
-  }
-
-  std::string FixedSizePortion;
-  if (parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      parseEscapedString(FixedSizePortion))
-    return true;
-
-  getStreamer().EmitCVDefRangeDirective(Ranges, FixedSizePortion);
-  return false;
-}
-
-/// parseDirectiveCVString
-/// ::= .cv_stringtable "string"
-bool AsmParser::parseDirectiveCVString() {
-  std::string Data;
-  if (checkForValidSection() || parseEscapedString(Data))
-    return addErrorSuffix(" in '.cv_string' directive");
-
-  // Put the string in the table and emit the offset.
-  std::pair<StringRef, unsigned> Insertion =
-      getCVContext().addToStringTable(Data);
-  getStreamer().EmitIntValue(Insertion.second, 4);
-  return false;
-}
-
-/// parseDirectiveCVStringTable
-/// ::= .cv_stringtable
-bool AsmParser::parseDirectiveCVStringTable() {
-  getStreamer().EmitCVStringTableDirective();
-  return false;
-}
-
-/// parseDirectiveCVFileChecksums
-/// ::= .cv_filechecksums
-bool AsmParser::parseDirectiveCVFileChecksums() {
-  getStreamer().EmitCVFileChecksumsDirective();
-  return false;
-}
-
-/// parseDirectiveCVFileChecksumOffset
-/// ::= .cv_filechecksumoffset fileno
-bool AsmParser::parseDirectiveCVFileChecksumOffset() {
-  int64_t FileNo;
-  if (parseIntToken(FileNo, "expected identifier in directive"))
-    return true;
-  if (parseToken(AsmToken::EndOfStatement, "Expected End of Statement"))
-    return true;
-  getStreamer().EmitCVFileChecksumOffsetDirective(FileNo);
-  return false;
-}
-
-/// parseDirectiveCVFPOData
-/// ::= .cv_fpo_data procsym
-bool AsmParser::parseDirectiveCVFPOData() {
-  SMLoc DirLoc = getLexer().getLoc();
-  StringRef ProcName;
-  if (parseIdentifier(ProcName))
-    return TokError("expected symbol name");
-  if (parseEOL("unexpected tokens"))
-    return addErrorSuffix(" in '.cv_fpo_data' directive");
-  MCSymbol *ProcSym = getContext().getOrCreateSymbol(ProcName);
-  getStreamer().EmitCVFPOData(ProcSym, DirLoc);
-  return false;
-}
-
-/// parseDirectiveCFISections
-/// ::= .cfi_sections section [, section]
-bool AsmParser::parseDirectiveCFISections() {
-  StringRef Name;
-  bool EH = false;
-  bool Debug = false;
-
-  if (parseIdentifier(Name))
-    return TokError("Expected an identifier");
-
-  if (Name == ".eh_frame")
-    EH = true;
-  else if (Name == ".debug_frame")
-    Debug = true;
-
-  if (getLexer().is(AsmToken::Comma)) {
-    Lex();
-
-    if (parseIdentifier(Name))
-      return TokError("Expected an identifier");
-
-    if (Name == ".eh_frame")
-      EH = true;
-    else if (Name == ".debug_frame")
-      Debug = true;
-  }
-
-  getStreamer().EmitCFISections(EH, Debug);
-  return false;
-}
-
-/// parseDirectiveCFIStartProc
-/// ::= .cfi_startproc [simple]
-bool AsmParser::parseDirectiveCFIStartProc() {
-  StringRef Simple;
-  if (!parseOptionalToken(AsmToken::EndOfStatement)) {
-    if (check(parseIdentifier(Simple) || Simple != "simple",
-              "unexpected token") ||
-        parseToken(AsmToken::EndOfStatement))
-      return addErrorSuffix(" in '.cfi_startproc' directive");
-  }
-
-  // TODO(kristina): Deal with a corner case of incorrect diagnostic context
-  // being produced if this directive is emitted as part of preprocessor macro
-  // expansion which can *ONLY* happen if Clang's cc1as is the API consumer.
-  // Tools like llvm-mc on the other hand are not affected by it, and report
-  // correct context information.
-  getStreamer().EmitCFIStartProc(!Simple.empty(), Lexer.getLoc());
-  return false;
-}
-
-/// parseDirectiveCFIEndProc
-/// ::= .cfi_endproc
-bool AsmParser::parseDirectiveCFIEndProc() {
-  getStreamer().EmitCFIEndProc();
-  return false;
-}
-
-/// parse register name or number.
-bool AsmParser::parseRegisterOrRegisterNumber(int64_t &Register,
-                                              SMLoc DirectiveLoc) {
-  unsigned RegNo;
-
-  if (getLexer().isNot(AsmToken::Integer)) {
-    if (getTargetParser().ParseRegister(RegNo, DirectiveLoc, DirectiveLoc))
-      return true;
-    Register = getContext().getRegisterInfo()->getDwarfRegNum(RegNo, true);
-  } else
-    return parseAbsoluteExpression(Register);
-
-  return false;
-}
-
-/// parseDirectiveCFIDefCfa
-/// ::= .cfi_def_cfa register,  offset
-bool AsmParser::parseDirectiveCFIDefCfa(SMLoc DirectiveLoc) {
-  int64_t Register = 0, Offset = 0;
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc) ||
-      parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      parseAbsoluteExpression(Offset))
-    return true;
-
-  getStreamer().EmitCFIDefCfa(Register, Offset);
-  return false;
-}
-
-/// parseDirectiveCFIDefCfaOffset
-/// ::= .cfi_def_cfa_offset offset
-bool AsmParser::parseDirectiveCFIDefCfaOffset() {
-  int64_t Offset = 0;
-  if (parseAbsoluteExpression(Offset))
-    return true;
-
-  getStreamer().EmitCFIDefCfaOffset(Offset);
-  return false;
-}
-
-/// parseDirectiveCFIRegister
-/// ::= .cfi_register register, register
-bool AsmParser::parseDirectiveCFIRegister(SMLoc DirectiveLoc) {
-  int64_t Register1 = 0, Register2 = 0;
-  if (parseRegisterOrRegisterNumber(Register1, DirectiveLoc) ||
-      parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      parseRegisterOrRegisterNumber(Register2, DirectiveLoc))
-    return true;
-
-  getStreamer().EmitCFIRegister(Register1, Register2);
-  return false;
-}
-
-/// parseDirectiveCFIWindowSave
-/// ::= .cfi_window_save
-bool AsmParser::parseDirectiveCFIWindowSave() {
-  getStreamer().EmitCFIWindowSave();
-  return false;
-}
-
-/// parseDirectiveCFIAdjustCfaOffset
-/// ::= .cfi_adjust_cfa_offset adjustment
-bool AsmParser::parseDirectiveCFIAdjustCfaOffset() {
-  int64_t Adjustment = 0;
-  if (parseAbsoluteExpression(Adjustment))
-    return true;
-
-  getStreamer().EmitCFIAdjustCfaOffset(Adjustment);
-  return false;
-}
-
-/// parseDirectiveCFIDefCfaRegister
-/// ::= .cfi_def_cfa_register register
-bool AsmParser::parseDirectiveCFIDefCfaRegister(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc))
-    return true;
-
-  getStreamer().EmitCFIDefCfaRegister(Register);
-  return false;
-}
-
-/// parseDirectiveCFIOffset
-/// ::= .cfi_offset register, offset
-bool AsmParser::parseDirectiveCFIOffset(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-  int64_t Offset = 0;
-
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc) ||
-      parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      parseAbsoluteExpression(Offset))
-    return true;
-
-  getStreamer().EmitCFIOffset(Register, Offset);
-  return false;
-}
-
-/// parseDirectiveCFIRelOffset
-/// ::= .cfi_rel_offset register, offset
-bool AsmParser::parseDirectiveCFIRelOffset(SMLoc DirectiveLoc) {
-  int64_t Register = 0, Offset = 0;
-
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc) ||
-      parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      parseAbsoluteExpression(Offset))
-    return true;
-
-  getStreamer().EmitCFIRelOffset(Register, Offset);
-  return false;
-}
-
-static bool isValidEncoding(int64_t Encoding) {
-  if (Encoding & ~0xff)
-    return false;
-
-  if (Encoding == dwarf::DW_EH_PE_omit)
-    return true;
-
-  const unsigned Format = Encoding & 0xf;
-  if (Format != dwarf::DW_EH_PE_absptr && Format != dwarf::DW_EH_PE_udata2 &&
-      Format != dwarf::DW_EH_PE_udata4 && Format != dwarf::DW_EH_PE_udata8 &&
-      Format != dwarf::DW_EH_PE_sdata2 && Format != dwarf::DW_EH_PE_sdata4 &&
-      Format != dwarf::DW_EH_PE_sdata8 && Format != dwarf::DW_EH_PE_signed)
-    return false;
-
-  const unsigned Application = Encoding & 0x70;
-  if (Application != dwarf::DW_EH_PE_absptr &&
-      Application != dwarf::DW_EH_PE_pcrel)
-    return false;
-
-  return true;
-}
-
-/// parseDirectiveCFIPersonalityOrLsda
-/// IsPersonality true for cfi_personality, false for cfi_lsda
-/// ::= .cfi_personality encoding, [symbol_name]
-/// ::= .cfi_lsda encoding, [symbol_name]
-bool AsmParser::parseDirectiveCFIPersonalityOrLsda(bool IsPersonality) {
-  int64_t Encoding = 0;
-  if (parseAbsoluteExpression(Encoding))
-    return true;
-  if (Encoding == dwarf::DW_EH_PE_omit)
-    return false;
-
-  StringRef Name;
-  if (check(!isValidEncoding(Encoding), "unsupported encoding.") ||
-      parseToken(AsmToken::Comma, "unexpected token in directive") ||
-      check(parseIdentifier(Name), "expected identifier in directive"))
-    return true;
-
-  MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
-
-  if (IsPersonality)
-    getStreamer().EmitCFIPersonality(Sym, Encoding);
-  else
-    getStreamer().EmitCFILsda(Sym, Encoding);
-  return false;
-}
-
-/// parseDirectiveCFIRememberState
-/// ::= .cfi_remember_state
-bool AsmParser::parseDirectiveCFIRememberState() {
-  getStreamer().EmitCFIRememberState();
-  return false;
-}
-
-/// parseDirectiveCFIRestoreState
-/// ::= .cfi_remember_state
-bool AsmParser::parseDirectiveCFIRestoreState() {
-  getStreamer().EmitCFIRestoreState();
-  return false;
-}
-
-/// parseDirectiveCFISameValue
-/// ::= .cfi_same_value register
-bool AsmParser::parseDirectiveCFISameValue(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc))
-    return true;
-
-  getStreamer().EmitCFISameValue(Register);
-  return false;
-}
-
-/// parseDirectiveCFIRestore
-/// ::= .cfi_restore register
-bool AsmParser::parseDirectiveCFIRestore(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc))
-    return true;
-
-  getStreamer().EmitCFIRestore(Register);
-  return false;
-}
-
-/// parseDirectiveCFIEscape
-/// ::= .cfi_escape expression[,...]
-bool AsmParser::parseDirectiveCFIEscape() {
-  std::string Values;
-  int64_t CurrValue;
-  if (parseAbsoluteExpression(CurrValue))
-    return true;
-
-  Values.push_back((uint8_t)CurrValue);
-
-  while (getLexer().is(AsmToken::Comma)) {
-    Lex();
-
-    if (parseAbsoluteExpression(CurrValue))
-      return true;
-
-    Values.push_back((uint8_t)CurrValue);
-  }
-
-  getStreamer().EmitCFIEscape(Values);
-  return false;
-}
-
-/// parseDirectiveCFIReturnColumn
-/// ::= .cfi_return_column register
-bool AsmParser::parseDirectiveCFIReturnColumn(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc))
-    return true;
-  getStreamer().EmitCFIReturnColumn(Register);
-  return false;
-}
-
-/// parseDirectiveCFISignalFrame
-/// ::= .cfi_signal_frame
-bool AsmParser::parseDirectiveCFISignalFrame() {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.cfi_signal_frame'"))
-    return true;
-
-  getStreamer().EmitCFISignalFrame();
-  return false;
-}
-
-/// parseDirectiveCFIUndefined
-/// ::= .cfi_undefined register
-bool AsmParser::parseDirectiveCFIUndefined(SMLoc DirectiveLoc) {
-  int64_t Register = 0;
-
-  if (parseRegisterOrRegisterNumber(Register, DirectiveLoc))
-    return true;
-
-  getStreamer().EmitCFIUndefined(Register);
-  return false;
-}
-
-/// parseDirectiveAltmacro
-/// ::= .altmacro
-/// ::= .noaltmacro
-bool AsmParser::parseDirectiveAltmacro(StringRef Directive) {
-  if (getLexer().isNot(AsmToken::EndOfStatement))
-    return TokError("unexpected token in '" + Directive + "' directive");
-  AltMacroMode = (Directive == ".altmacro");
-  return false;
-}
-
-/// parseDirectiveMacrosOnOff
-/// ::= .macros_on
-/// ::= .macros_off
-bool AsmParser::parseDirectiveMacrosOnOff(StringRef Directive) {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Directive + "' directive"))
-    return true;
-
-  setMacrosEnabled(Directive == ".macros_on");
-  return false;
-}
-
-/// parseDirectiveMacro
-/// ::= .macro name[,] [parameters]
-bool AsmParser::parseDirectiveMacro(SMLoc DirectiveLoc) {
-  StringRef Name;
-  if (parseIdentifier(Name))
-    return TokError("expected identifier in '.macro' directive");
-
-  if (getLexer().is(AsmToken::Comma))
-    Lex();
-
-  MCAsmMacroParameters Parameters;
-  while (getLexer().isNot(AsmToken::EndOfStatement)) {
-
-    if (!Parameters.empty() && Parameters.back().Vararg)
-      return Error(Lexer.getLoc(),
-                   "Vararg parameter '" + Parameters.back().Name +
-                   "' should be last one in the list of parameters.");
-
-    MCAsmMacroParameter Parameter;
-    if (parseIdentifier(Parameter.Name))
-      return TokError("expected identifier in '.macro' directive");
-
-    // Emit an error if two (or more) named parameters share the same name
-    for (const MCAsmMacroParameter& CurrParam : Parameters)
-      if (CurrParam.Name.equals(Parameter.Name))
-        return TokError("macro '" + Name + "' has multiple parameters"
-                        " named '" + Parameter.Name + "'");
-
-    if (Lexer.is(AsmToken::Colon)) {
-      Lex();  // consume ':'
-
-      SMLoc QualLoc;
-      StringRef Qualifier;
-
-      QualLoc = Lexer.getLoc();
-      if (parseIdentifier(Qualifier))
-        return Error(QualLoc, "missing parameter qualifier for "
-                     "'" + Parameter.Name + "' in macro '" + Name + "'");
-
-      if (Qualifier == "req")
-        Parameter.Required = true;
-      else if (Qualifier == "vararg")
-        Parameter.Vararg = true;
-      else
-        return Error(QualLoc, Qualifier + " is not a valid parameter qualifier "
-                     "for '" + Parameter.Name + "' in macro '" + Name + "'");
-    }
-
-    if (getLexer().is(AsmToken::Equal)) {
-      Lex();
-
-      SMLoc ParamLoc;
-
-      ParamLoc = Lexer.getLoc();
-      if (parseMacroArgument(Parameter.Value, /*Vararg=*/false ))
-        return true;
-
-      if (Parameter.Required)
-        Warning(ParamLoc, "pointless default value for required parameter "
-                "'" + Parameter.Name + "' in macro '" + Name + "'");
-    }
-
-    Parameters.push_back(std::move(Parameter));
-
-    if (getLexer().is(AsmToken::Comma))
-      Lex();
-  }
-
-  // Eat just the end of statement.
-  Lexer.Lex();
-
-  // Consuming deferred text, so use Lexer.Lex to ignore Lexing Errors
-  AsmToken EndToken, StartToken = getTok();
-  unsigned MacroDepth = 0;
-  // Lex the macro definition.
-  while (true) {
-    // Ignore Lexing errors in macros.
-    while (Lexer.is(AsmToken::Error)) {
-      Lexer.Lex();
-    }
-
-    // Check whether we have reached the end of the file.
-    if (getLexer().is(AsmToken::Eof))
-      return Error(DirectiveLoc, "no matching '.endmacro' in definition");
-
-    // Otherwise, check whether we have reach the .endmacro.
-    if (getLexer().is(AsmToken::Identifier)) {
-      if (getTok().getIdentifier() == ".endm" ||
-          getTok().getIdentifier() == ".endmacro") {
-        if (MacroDepth == 0) { // Outermost macro.
-          EndToken = getTok();
-          Lexer.Lex();
-          if (getLexer().isNot(AsmToken::EndOfStatement))
-            return TokError("unexpected token in '" + EndToken.getIdentifier() +
-                            "' directive");
-          break;
-        } else {
-          // Otherwise we just found the end of an inner macro.
-          --MacroDepth;
-        }
-      } else if (getTok().getIdentifier() == ".macro") {
-        // We allow nested macros. Those aren't instantiated until the outermost
-        // macro is expanded so just ignore them for now.
-        ++MacroDepth;
-      }
-    }
-
-    // Otherwise, scan til the end of the statement.
-    eatToEndOfStatement();
-  }
-
-  if (getContext().lookupMacro(Name)) {
-    return Error(DirectiveLoc, "macro '" + Name + "' is already defined");
-  }
-
-  const char *BodyStart = StartToken.getLoc().getPointer();
-  const char *BodyEnd = EndToken.getLoc().getPointer();
-  StringRef Body = StringRef(BodyStart, BodyEnd - BodyStart);
-  checkForBadMacro(DirectiveLoc, Name, Body, Parameters);
-  MCAsmMacro Macro(Name, Body, std::move(Parameters));
-  DEBUG_WITH_TYPE("asm-macros", dbgs() << "Defining new macro:\n";
-                  Macro.dump());
-  getContext().defineMacro(Name, std::move(Macro));
-  return false;
-}
-
-/// checkForBadMacro
-///
-/// With the support added for named parameters there may be code out there that
-/// is transitioning from positional parameters.  In versions of gas that did
-/// not support named parameters they would be ignored on the macro definition.
-/// But to support both styles of parameters this is not possible so if a macro
-/// definition has named parameters but does not use them and has what appears
-/// to be positional parameters, strings like $1, $2, ... and $n, then issue a
-/// warning that the positional parameter found in body which have no effect.
-/// Hoping the developer will either remove the named parameters from the macro
-/// definition so the positional parameters get used if that was what was
-/// intended or change the macro to use the named parameters.  It is possible
-/// this warning will trigger when the none of the named parameters are used
-/// and the strings like $1 are infact to simply to be passed trough unchanged.
-void AsmParser::checkForBadMacro(SMLoc DirectiveLoc, StringRef Name,
-                                 StringRef Body,
-                                 ArrayRef<MCAsmMacroParameter> Parameters) {
-  // If this macro is not defined with named parameters the warning we are
-  // checking for here doesn't apply.
-  unsigned NParameters = Parameters.size();
-  if (NParameters == 0)
-    return;
-
-  bool NamedParametersFound = false;
-  bool PositionalParametersFound = false;
-
-  // Look at the body of the macro for use of both the named parameters and what
-  // are likely to be positional parameters.  This is what expandMacro() is
-  // doing when it finds the parameters in the body.
-  while (!Body.empty()) {
-    // Scan for the next possible parameter.
-    std::size_t End = Body.size(), Pos = 0;
-    for (; Pos != End; ++Pos) {
-      // Check for a substitution or escape.
-      // This macro is defined with parameters, look for \foo, \bar, etc.
-      if (Body[Pos] == '\\' && Pos + 1 != End)
-        break;
-
-      // This macro should have parameters, but look for $0, $1, ..., $n too.
-      if (Body[Pos] != '$' || Pos + 1 == End)
-        continue;
-      char Next = Body[Pos + 1];
-      if (Next == '$' || Next == 'n' ||
-          isdigit(static_cast<unsigned char>(Next)))
-        break;
-    }
-
-    // Check if we reached the end.
-    if (Pos == End)
-      break;
-
-    if (Body[Pos] == '$') {
-      switch (Body[Pos + 1]) {
-      // $$ => $
-      case '$':
-        break;
-
-      // $n => number of arguments
-      case 'n':
-        PositionalParametersFound = true;
-        break;
-
-      // $[0-9] => argument
-      default: {
-        PositionalParametersFound = true;
-        break;
-      }
-      }
-      Pos += 2;
-    } else {
-      unsigned I = Pos + 1;
-      while (isIdentifierChar(Body[I]) && I + 1 != End)
-        ++I;
-
-      const char *Begin = Body.data() + Pos + 1;
-      StringRef Argument(Begin, I - (Pos + 1));
-      unsigned Index = 0;
-      for (; Index < NParameters; ++Index)
-        if (Parameters[Index].Name == Argument)
-          break;
-
-      if (Index == NParameters) {
-        if (Body[Pos + 1] == '(' && Body[Pos + 2] == ')')
-          Pos += 3;
-        else {
-          Pos = I;
-        }
-      } else {
-        NamedParametersFound = true;
-        Pos += 1 + Argument.size();
-      }
-    }
-    // Update the scan point.
-    Body = Body.substr(Pos);
-  }
-
-  if (!NamedParametersFound && PositionalParametersFound)
-    Warning(DirectiveLoc, "macro defined with named parameters which are not "
-                          "used in macro body, possible positional parameter "
-                          "found in body which will have no effect");
-}
-
-/// parseDirectiveExitMacro
-/// ::= .exitm
-bool AsmParser::parseDirectiveExitMacro(StringRef Directive) {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Directive + "' directive"))
-    return true;
-
-  if (!isInsideMacroInstantiation())
-    return TokError("unexpected '" + Directive + "' in file, "
-                                                 "no current macro definition");
-
-  // Exit all conditionals that are active in the current macro.
-  while (TheCondStack.size() != ActiveMacros.back()->CondStackDepth) {
-    TheCondState = TheCondStack.back();
-    TheCondStack.pop_back();
-  }
-
-  handleMacroExit();
-  return false;
-}
-
-/// parseDirectiveEndMacro
-/// ::= .endm
-/// ::= .endmacro
-bool AsmParser::parseDirectiveEndMacro(StringRef Directive) {
-  if (getLexer().isNot(AsmToken::EndOfStatement))
-    return TokError("unexpected token in '" + Directive + "' directive");
-
-  // If we are inside a macro instantiation, terminate the current
-  // instantiation.
-  if (isInsideMacroInstantiation()) {
-    handleMacroExit();
-    return false;
-  }
-
-  // Otherwise, this .endmacro is a stray entry in the file; well formed
-  // .endmacro directives are handled during the macro definition parsing.
-  return TokError("unexpected '" + Directive + "' in file, "
-                                               "no current macro definition");
-}
-
-/// parseDirectivePurgeMacro
-/// ::= .purgem
-bool AsmParser::parseDirectivePurgeMacro(SMLoc DirectiveLoc) {
-  StringRef Name;
-  SMLoc Loc;
-  if (parseTokenLoc(Loc) ||
-      check(parseIdentifier(Name), Loc,
-            "expected identifier in '.purgem' directive") ||
-      parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.purgem' directive"))
-    return true;
-
-  if (!getContext().lookupMacro(Name))
-    return Error(DirectiveLoc, "macro '" + Name + "' is not defined");
-
-  getContext().undefineMacro(Name);
-  DEBUG_WITH_TYPE("asm-macros", dbgs()
-                                    << "Un-defining macro: " << Name << "\n");
-  return false;
-}
-
-/// parseDirectiveBundleAlignMode
-/// ::= {.bundle_align_mode} expression
-bool AsmParser::parseDirectiveBundleAlignMode() {
-  // Expect a single argument: an expression that evaluates to a constant
-  // in the inclusive range 0-30.
-  SMLoc ExprLoc = getLexer().getLoc();
-  int64_t AlignSizePow2;
-  if (checkForValidSection() || parseAbsoluteExpression(AlignSizePow2) ||
-      parseToken(AsmToken::EndOfStatement, "unexpected token after expression "
-                                           "in '.bundle_align_mode' "
-                                           "directive") ||
-      check(AlignSizePow2 < 0 || AlignSizePow2 > 30, ExprLoc,
-            "invalid bundle alignment size (expected between 0 and 30)"))
-    return true;
-
-  // Because of AlignSizePow2's verified range we can safely truncate it to
-  // unsigned.
-  getStreamer().EmitBundleAlignMode(static_cast<unsigned>(AlignSizePow2));
-  return false;
-}
-
-/// parseDirectiveBundleLock
-/// ::= {.bundle_lock} [align_to_end]
-bool AsmParser::parseDirectiveBundleLock() {
-  if (checkForValidSection())
-    return true;
-  bool AlignToEnd = false;
-
-  StringRef Option;
-  SMLoc Loc = getTok().getLoc();
-  const char *kInvalidOptionError =
-      "invalid option for '.bundle_lock' directive";
-
-  if (!parseOptionalToken(AsmToken::EndOfStatement)) {
-    if (check(parseIdentifier(Option), Loc, kInvalidOptionError) ||
-        check(Option != "align_to_end", Loc, kInvalidOptionError) ||
-        parseToken(AsmToken::EndOfStatement,
-                   "unexpected token after '.bundle_lock' directive option"))
-      return true;
-    AlignToEnd = true;
-  }
-
-  getStreamer().EmitBundleLock(AlignToEnd);
-  return false;
-}
-
-/// parseDirectiveBundleLock
-/// ::= {.bundle_lock}
-bool AsmParser::parseDirectiveBundleUnlock() {
-  if (checkForValidSection() ||
-      parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.bundle_unlock' directive"))
-    return true;
-
-  getStreamer().EmitBundleUnlock();
-  return false;
-}
-
-/// parseDirectiveSpace
-/// ::= (.skip | .space) expression [ , expression ]
-bool AsmParser::parseDirectiveSpace(StringRef IDVal) {
-  SMLoc NumBytesLoc = Lexer.getLoc();
-  const MCExpr *NumBytes;
-  if (checkForValidSection() || parseExpression(NumBytes))
-    return true;
-
-  int64_t FillExpr = 0;
-  if (parseOptionalToken(AsmToken::Comma))
-    if (parseAbsoluteExpression(FillExpr))
-      return addErrorSuffix("in '" + Twine(IDVal) + "' directive");
-  if (parseToken(AsmToken::EndOfStatement))
-    return addErrorSuffix("in '" + Twine(IDVal) + "' directive");
-
-  // FIXME: Sometimes the fill expr is 'nop' if it isn't supplied, instead of 0.
-  getStreamer().emitFill(*NumBytes, FillExpr, NumBytesLoc);
-
-  return false;
-}
-
-/// parseDirectiveDCB
-/// ::= .dcb.{b, l, w} expression, expression
-bool AsmParser::parseDirectiveDCB(StringRef IDVal, unsigned Size) {
-  SMLoc NumValuesLoc = Lexer.getLoc();
-  int64_t NumValues;
-  if (checkForValidSection() || parseAbsoluteExpression(NumValues))
-    return true;
-
-  if (NumValues < 0) {
-    Warning(NumValuesLoc, "'" + Twine(IDVal) + "' directive with negative repeat count has no effect");
-    return false;
-  }
-
-  if (parseToken(AsmToken::Comma,
-                 "unexpected token in '" + Twine(IDVal) + "' directive"))
-    return true;
-
-  const MCExpr *Value;
-  SMLoc ExprLoc = getLexer().getLoc();
-  if (parseExpression(Value))
-    return true;
-
-  // Special case constant expressions to match code generator.
-  if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
-    assert(Size <= 8 && "Invalid size");
-    uint64_t IntValue = MCE->getValue();
-    if (!isUIntN(8 * Size, IntValue) && !isIntN(8 * Size, IntValue))
-      return Error(ExprLoc, "literal value out of range for directive");
-    for (uint64_t i = 0, e = NumValues; i != e; ++i)
-      getStreamer().EmitIntValue(IntValue, Size);
-  } else {
-    for (uint64_t i = 0, e = NumValues; i != e; ++i)
-      getStreamer().EmitValue(Value, Size, ExprLoc);
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Twine(IDVal) + "' directive"))
-    return true;
-
-  return false;
-}
-
-/// parseDirectiveRealDCB
-/// ::= .dcb.{d, s} expression, expression
-bool AsmParser::parseDirectiveRealDCB(StringRef IDVal, const fltSemantics &Semantics) {
-  SMLoc NumValuesLoc = Lexer.getLoc();
-  int64_t NumValues;
-  if (checkForValidSection() || parseAbsoluteExpression(NumValues))
-    return true;
-
-  if (NumValues < 0) {
-    Warning(NumValuesLoc, "'" + Twine(IDVal) + "' directive with negative repeat count has no effect");
-    return false;
-  }
-
-  if (parseToken(AsmToken::Comma,
-                 "unexpected token in '" + Twine(IDVal) + "' directive"))
-    return true;
-
-  APInt AsInt;
-  if (parseRealValue(Semantics, AsInt))
-    return true;
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Twine(IDVal) + "' directive"))
-    return true;
-
-  for (uint64_t i = 0, e = NumValues; i != e; ++i)
-    getStreamer().EmitIntValue(AsInt.getLimitedValue(),
-                               AsInt.getBitWidth() / 8);
-
-  return false;
-}
-
-/// parseDirectiveDS
-/// ::= .ds.{b, d, l, p, s, w, x} expression
-bool AsmParser::parseDirectiveDS(StringRef IDVal, unsigned Size) {
-  SMLoc NumValuesLoc = Lexer.getLoc();
-  int64_t NumValues;
-  if (checkForValidSection() || parseAbsoluteExpression(NumValues))
-    return true;
-
-  if (NumValues < 0) {
-    Warning(NumValuesLoc, "'" + Twine(IDVal) + "' directive with negative repeat count has no effect");
-    return false;
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Twine(IDVal) + "' directive"))
-    return true;
-
-  for (uint64_t i = 0, e = NumValues; i != e; ++i)
-    getStreamer().emitFill(Size, 0);
-
-  return false;
-}
-
-/// parseDirectiveLEB128
-/// ::= (.sleb128 | .uleb128) [ expression (, expression)* ]
-bool AsmParser::parseDirectiveLEB128(bool Signed) {
-  if (checkForValidSection())
-    return true;
-
-  auto parseOp = [&]() -> bool {
-    const MCExpr *Value;
-    if (parseExpression(Value))
-      return true;
-    if (Signed)
-      getStreamer().EmitSLEB128Value(Value);
-    else
-      getStreamer().EmitULEB128Value(Value);
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in directive");
-
-  return false;
-}
-
-/// parseDirectiveSymbolAttribute
-///  ::= { ".globl", ".weak", ... } [ identifier ( , identifier )* ]
-bool AsmParser::parseDirectiveSymbolAttribute(MCSymbolAttr Attr) {
-  auto parseOp = [&]() -> bool {
-    StringRef Name;
-    SMLoc Loc = getTok().getLoc();
-    if (parseIdentifier(Name))
-      return Error(Loc, "expected identifier");
-    MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
-
-    // Assembler local symbols don't make any sense here. Complain loudly.
-    if (Sym->isTemporary())
-      return Error(Loc, "non-local symbol required");
-
-    if (!getStreamer().EmitSymbolAttribute(Sym, Attr))
-      return Error(Loc, "unable to emit symbol attribute");
-    return false;
-  };
-
-  if (parseMany(parseOp))
-    return addErrorSuffix(" in directive");
-  return false;
-}
-
-/// parseDirectiveComm
-///  ::= ( .comm | .lcomm ) identifier , size_expression [ , align_expression ]
-bool AsmParser::parseDirectiveComm(bool IsLocal) {
-  if (checkForValidSection())
-    return true;
-
-  SMLoc IDLoc = getLexer().getLoc();
-  StringRef Name;
-  if (parseIdentifier(Name))
-    return TokError("expected identifier in directive");
-
-  // Handle the identifier as the key symbol.
-  MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
-
-  if (getLexer().isNot(AsmToken::Comma))
-    return TokError("unexpected token in directive");
-  Lex();
-
-  int64_t Size;
-  SMLoc SizeLoc = getLexer().getLoc();
-  if (parseAbsoluteExpression(Size))
-    return true;
-
-  int64_t Pow2Alignment = 0;
-  SMLoc Pow2AlignmentLoc;
-  if (getLexer().is(AsmToken::Comma)) {
-    Lex();
-    Pow2AlignmentLoc = getLexer().getLoc();
-    if (parseAbsoluteExpression(Pow2Alignment))
-      return true;
-
-    LCOMM::LCOMMType LCOMM = Lexer.getMAI().getLCOMMDirectiveAlignmentType();
-    if (IsLocal && LCOMM == LCOMM::NoAlignment)
-      return Error(Pow2AlignmentLoc, "alignment not supported on this target");
-
-    // If this target takes alignments in bytes (not log) validate and convert.
-    if ((!IsLocal && Lexer.getMAI().getCOMMDirectiveAlignmentIsInBytes()) ||
-        (IsLocal && LCOMM == LCOMM::ByteAlignment)) {
-      if (!isPowerOf2_64(Pow2Alignment))
-        return Error(Pow2AlignmentLoc, "alignment must be a power of 2");
-      Pow2Alignment = Log2_64(Pow2Alignment);
-    }
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.comm' or '.lcomm' directive"))
-    return true;
-
-  // NOTE: a size of zero for a .comm should create a undefined symbol
-  // but a size of .lcomm creates a bss symbol of size zero.
-  if (Size < 0)
-    return Error(SizeLoc, "invalid '.comm' or '.lcomm' directive size, can't "
-                          "be less than zero");
-
-  // NOTE: The alignment in the directive is a power of 2 value, the assembler
-  // may internally end up wanting an alignment in bytes.
-  // FIXME: Diagnose overflow.
-  if (Pow2Alignment < 0)
-    return Error(Pow2AlignmentLoc, "invalid '.comm' or '.lcomm' directive "
-                                   "alignment, can't be less than zero");
-
-  Sym->redefineIfPossible();
-  if (!Sym->isUndefined())
-    return Error(IDLoc, "invalid symbol redefinition");
-
-  // Create the Symbol as a common or local common with Size and Pow2Alignment
-  if (IsLocal) {
-    getStreamer().EmitLocalCommonSymbol(Sym, Size, 1 << Pow2Alignment);
-    return false;
-  }
-
-  getStreamer().EmitCommonSymbol(Sym, Size, 1 << Pow2Alignment);
-  return false;
-}
-
-/// parseDirectiveAbort
-///  ::= .abort [... message ...]
-bool AsmParser::parseDirectiveAbort() {
-  // FIXME: Use loc from directive.
-  SMLoc Loc = getLexer().getLoc();
-
-  StringRef Str = parseStringToEndOfStatement();
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.abort' directive"))
-    return true;
-
-  if (Str.empty())
-    return Error(Loc, ".abort detected. Assembly stopping.");
-  else
-    return Error(Loc, ".abort '" + Str + "' detected. Assembly stopping.");
-  // FIXME: Actually abort assembly here.
-
-  return false;
-}
-
-/// parseDirectiveInclude
-///  ::= .include "filename"
-bool AsmParser::parseDirectiveInclude() {
-  // Allow the strings to have escaped octal character sequence.
-  std::string Filename;
-  SMLoc IncludeLoc = getTok().getLoc();
-
-  if (check(getTok().isNot(AsmToken::String),
-            "expected string in '.include' directive") ||
-      parseEscapedString(Filename) ||
-      check(getTok().isNot(AsmToken::EndOfStatement),
-            "unexpected token in '.include' directive") ||
-      // Attempt to switch the lexer to the included file before consuming the
-      // end of statement to avoid losing it when we switch.
-      check(enterIncludeFile(Filename), IncludeLoc,
-            "Could not find include file '" + Filename + "'"))
-    return true;
-
-  return false;
-}
-
-/// parseDirectiveIncbin
-///  ::= .incbin "filename" [ , skip [ , count ] ]
-bool AsmParser::parseDirectiveIncbin() {
-  // Allow the strings to have escaped octal character sequence.
-  std::string Filename;
-  SMLoc IncbinLoc = getTok().getLoc();
-  if (check(getTok().isNot(AsmToken::String),
-            "expected string in '.incbin' directive") ||
-      parseEscapedString(Filename))
-    return true;
-
-  int64_t Skip = 0;
-  const MCExpr *Count = nullptr;
-  SMLoc SkipLoc, CountLoc;
-  if (parseOptionalToken(AsmToken::Comma)) {
-    // The skip expression can be omitted while specifying the count, e.g:
-    //  .incbin "filename",,4
-    if (getTok().isNot(AsmToken::Comma)) {
-      if (parseTokenLoc(SkipLoc) || parseAbsoluteExpression(Skip))
-        return true;
-    }
-    if (parseOptionalToken(AsmToken::Comma)) {
-      CountLoc = getTok().getLoc();
-      if (parseExpression(Count))
-        return true;
-    }
-  }
-
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.incbin' directive"))
-    return true;
-
-  if (check(Skip < 0, SkipLoc, "skip is negative"))
-    return true;
-
-  // Attempt to process the included file.
-  if (processIncbinFile(Filename, Skip, Count, CountLoc))
-    return Error(IncbinLoc, "Could not find incbin file '" + Filename + "'");
-  return false;
-}
-
-/// parseDirectiveIf
-/// ::= .if{,eq,ge,gt,le,lt,ne} expression
-bool AsmParser::parseDirectiveIf(SMLoc DirectiveLoc, DirectiveKind DirKind) {
-  TheCondStack.push_back(TheCondState);
-  TheCondState.TheCond = AsmCond::IfCond;
-  if (TheCondState.Ignore) {
-    eatToEndOfStatement();
-  } else {
-    int64_t ExprValue;
-    if (parseAbsoluteExpression(ExprValue) ||
-        parseToken(AsmToken::EndOfStatement,
-                   "unexpected token in '.if' directive"))
-      return true;
-
-    switch (DirKind) {
-    default:
-      llvm_unreachable("unsupported directive");
-    case DK_IF:
-    case DK_IFNE:
-      break;
-    case DK_IFEQ:
-      ExprValue = ExprValue == 0;
-      break;
-    case DK_IFGE:
-      ExprValue = ExprValue >= 0;
-      break;
-    case DK_IFGT:
-      ExprValue = ExprValue > 0;
-      break;
-    case DK_IFLE:
-      ExprValue = ExprValue <= 0;
-      break;
-    case DK_IFLT:
-      ExprValue = ExprValue < 0;
-      break;
-    }
-
-    TheCondState.CondMet = ExprValue;
-    TheCondState.Ignore = !TheCondState.CondMet;
-  }
-
-  return false;
-}
-
-/// parseDirectiveIfb
-/// ::= .ifb string
-bool AsmParser::parseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank) {
-  TheCondStack.push_back(TheCondState);
-  TheCondState.TheCond = AsmCond::IfCond;
-
-  if (TheCondState.Ignore) {
-    eatToEndOfStatement();
-  } else {
-    StringRef Str = parseStringToEndOfStatement();
-
-    if (parseToken(AsmToken::EndOfStatement,
-                   "unexpected token in '.ifb' directive"))
-      return true;
-
-    TheCondState.CondMet = ExpectBlank == Str.empty();
-    TheCondState.Ignore = !TheCondState.CondMet;
-  }
-
-  return false;
-}
-
-/// parseDirectiveIfc
-/// ::= .ifc string1, string2
-/// ::= .ifnc string1, string2
-bool AsmParser::parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
-  TheCondStack.push_back(TheCondState);
-  TheCondState.TheCond = AsmCond::IfCond;
-
-  if (TheCondState.Ignore) {
-    eatToEndOfStatement();
-  } else {
-    StringRef Str1 = parseStringToComma();
-
-    if (parseToken(AsmToken::Comma, "unexpected token in '.ifc' directive"))
-      return true;
-
-    StringRef Str2 = parseStringToEndOfStatement();
-
-    if (parseToken(AsmToken::EndOfStatement,
-                   "unexpected token in '.ifc' directive"))
-      return true;
-
-    TheCondState.CondMet = ExpectEqual == (Str1.trim() == Str2.trim());
-    TheCondState.Ignore = !TheCondState.CondMet;
-  }
-
-  return false;
-}
-
-/// parseDirectiveIfeqs
-///   ::= .ifeqs string1, string2
-bool AsmParser::parseDirectiveIfeqs(SMLoc DirectiveLoc, bool ExpectEqual) {
-  if (Lexer.isNot(AsmToken::String)) {
-    if (ExpectEqual)
-      return TokError("expected string parameter for '.ifeqs' directive");
-    return TokError("expected string parameter for '.ifnes' directive");
-  }
-
-  StringRef String1 = getTok().getStringContents();
-  Lex();
-
-  if (Lexer.isNot(AsmToken::Comma)) {
-    if (ExpectEqual)
-      return TokError(
-          "expected comma after first string for '.ifeqs' directive");
-    return TokError("expected comma after first string for '.ifnes' directive");
-  }
-
-  Lex();
-
-  if (Lexer.isNot(AsmToken::String)) {
-    if (ExpectEqual)
-      return TokError("expected string parameter for '.ifeqs' directive");
-    return TokError("expected string parameter for '.ifnes' directive");
-  }
-
-  StringRef String2 = getTok().getStringContents();
-  Lex();
-
-  TheCondStack.push_back(TheCondState);
-  TheCondState.TheCond = AsmCond::IfCond;
-  TheCondState.CondMet = ExpectEqual == (String1 == String2);
-  TheCondState.Ignore = !TheCondState.CondMet;
-
-  return false;
-}
-
-/// parseDirectiveIfdef
-/// ::= .ifdef symbol
-bool AsmParser::parseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined) {
-  StringRef Name;
-  TheCondStack.push_back(TheCondState);
-  TheCondState.TheCond = AsmCond::IfCond;
-
-  if (TheCondState.Ignore) {
-    eatToEndOfStatement();
-  } else {
-    if (check(parseIdentifier(Name), "expected identifier after '.ifdef'") ||
-        parseToken(AsmToken::EndOfStatement, "unexpected token in '.ifdef'"))
-      return true;
-
-    MCSymbol *Sym = getContext().lookupSymbol(Name);
-
-    if (expect_defined)
-      TheCondState.CondMet = (Sym && !Sym->isUndefined());
-    else
-      TheCondState.CondMet = (!Sym || Sym->isUndefined());
-    TheCondState.Ignore = !TheCondState.CondMet;
-  }
-
-  return false;
-}
-
-/// parseDirectiveElseIf
-/// ::= .elseif expression
-bool AsmParser::parseDirectiveElseIf(SMLoc DirectiveLoc) {
-  if (TheCondState.TheCond != AsmCond::IfCond &&
-      TheCondState.TheCond != AsmCond::ElseIfCond)
-    return Error(DirectiveLoc, "Encountered a .elseif that doesn't follow an"
-                               " .if or  an .elseif");
-  TheCondState.TheCond = AsmCond::ElseIfCond;
-
-  bool LastIgnoreState = false;
-  if (!TheCondStack.empty())
-    LastIgnoreState = TheCondStack.back().Ignore;
-  if (LastIgnoreState || TheCondState.CondMet) {
-    TheCondState.Ignore = true;
-    eatToEndOfStatement();
-  } else {
-    int64_t ExprValue;
-    if (parseAbsoluteExpression(ExprValue))
-      return true;
-
-    if (parseToken(AsmToken::EndOfStatement,
-                   "unexpected token in '.elseif' directive"))
-      return true;
-
-    TheCondState.CondMet = ExprValue;
-    TheCondState.Ignore = !TheCondState.CondMet;
-  }
-
-  return false;
-}
-
-/// parseDirectiveElse
-/// ::= .else
-bool AsmParser::parseDirectiveElse(SMLoc DirectiveLoc) {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.else' directive"))
-    return true;
-
-  if (TheCondState.TheCond != AsmCond::IfCond &&
-      TheCondState.TheCond != AsmCond::ElseIfCond)
-    return Error(DirectiveLoc, "Encountered a .else that doesn't follow "
-                               " an .if or an .elseif");
-  TheCondState.TheCond = AsmCond::ElseCond;
-  bool LastIgnoreState = false;
-  if (!TheCondStack.empty())
-    LastIgnoreState = TheCondStack.back().Ignore;
-  if (LastIgnoreState || TheCondState.CondMet)
-    TheCondState.Ignore = true;
-  else
-    TheCondState.Ignore = false;
-
-  return false;
-}
-
-/// parseDirectiveEnd
-/// ::= .end
-bool AsmParser::parseDirectiveEnd(SMLoc DirectiveLoc) {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.end' directive"))
-    return true;
-
-  while (Lexer.isNot(AsmToken::Eof))
-    Lexer.Lex();
-
-  return false;
-}
-
-/// parseDirectiveError
-///   ::= .err
-///   ::= .error [string]
-bool AsmParser::parseDirectiveError(SMLoc L, bool WithMessage) {
-  if (!TheCondStack.empty()) {
-    if (TheCondStack.back().Ignore) {
-      eatToEndOfStatement();
-      return false;
-    }
-  }
-
-  if (!WithMessage)
-    return Error(L, ".err encountered");
-
-  StringRef Message = ".error directive invoked in source file";
-  if (Lexer.isNot(AsmToken::EndOfStatement)) {
-    if (Lexer.isNot(AsmToken::String))
-      return TokError(".error argument must be a string");
-
-    Message = getTok().getStringContents();
-    Lex();
-  }
-
-  return Error(L, Message);
-}
-
-/// parseDirectiveWarning
-///   ::= .warning [string]
-bool AsmParser::parseDirectiveWarning(SMLoc L) {
-  if (!TheCondStack.empty()) {
-    if (TheCondStack.back().Ignore) {
-      eatToEndOfStatement();
-      return false;
-    }
-  }
-
-  StringRef Message = ".warning directive invoked in source file";
-
-  if (!parseOptionalToken(AsmToken::EndOfStatement)) {
-    if (Lexer.isNot(AsmToken::String))
-      return TokError(".warning argument must be a string");
-
-    Message = getTok().getStringContents();
-    Lex();
-    if (parseToken(AsmToken::EndOfStatement,
-                   "expected end of statement in '.warning' directive"))
-      return true;
-  }
-
-  return Warning(L, Message);
-}
-
-/// parseDirectiveEndIf
-/// ::= .endif
-bool AsmParser::parseDirectiveEndIf(SMLoc DirectiveLoc) {
-  if (parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '.endif' directive"))
-    return true;
-
-  if ((TheCondState.TheCond == AsmCond::NoCond) || TheCondStack.empty())
-    return Error(DirectiveLoc, "Encountered a .endif that doesn't follow "
-                               "an .if or .else");
-  if (!TheCondStack.empty()) {
-    TheCondState = TheCondStack.back();
-    TheCondStack.pop_back();
-  }
-
-  return false;
-}
-
-void AsmParser::initializeDirectiveKindMap() {
-  DirectiveKindMap[".set"] = DK_SET;
-  DirectiveKindMap[".equ"] = DK_EQU;
-  DirectiveKindMap[".equiv"] = DK_EQUIV;
-  DirectiveKindMap[".ascii"] = DK_ASCII;
-  DirectiveKindMap[".asciz"] = DK_ASCIZ;
-  DirectiveKindMap[".string"] = DK_STRING;
-  DirectiveKindMap[".byte"] = DK_BYTE;
-  DirectiveKindMap[".short"] = DK_SHORT;
-  DirectiveKindMap[".value"] = DK_VALUE;
-  DirectiveKindMap[".2byte"] = DK_2BYTE;
-  DirectiveKindMap[".long"] = DK_LONG;
-  DirectiveKindMap[".int"] = DK_INT;
-  DirectiveKindMap[".4byte"] = DK_4BYTE;
-  DirectiveKindMap[".quad"] = DK_QUAD;
-  DirectiveKindMap[".8byte"] = DK_8BYTE;
-  DirectiveKindMap[".octa"] = DK_OCTA;
-  DirectiveKindMap[".single"] = DK_SINGLE;
-  DirectiveKindMap[".float"] = DK_FLOAT;
-  DirectiveKindMap[".double"] = DK_DOUBLE;
-  DirectiveKindMap[".align"] = DK_ALIGN;
-  DirectiveKindMap[".align32"] = DK_ALIGN32;
-  DirectiveKindMap[".balign"] = DK_BALIGN;
-  DirectiveKindMap[".balignw"] = DK_BALIGNW;
-  DirectiveKindMap[".balignl"] = DK_BALIGNL;
-  DirectiveKindMap[".p2align"] = DK_P2ALIGN;
-  DirectiveKindMap[".p2alignw"] = DK_P2ALIGNW;
-  DirectiveKindMap[".p2alignl"] = DK_P2ALIGNL;
-  DirectiveKindMap[".org"] = DK_ORG;
-  DirectiveKindMap[".fill"] = DK_FILL;
-  DirectiveKindMap[".zero"] = DK_ZERO;
-  DirectiveKindMap[".extern"] = DK_EXTERN;
-  DirectiveKindMap[".globl"] = DK_GLOBL;
-  DirectiveKindMap[".global"] = DK_GLOBAL;
-  DirectiveKindMap[".lazy_reference"] = DK_LAZY_REFERENCE;
-  DirectiveKindMap[".no_dead_strip"] = DK_NO_DEAD_STRIP;
-  DirectiveKindMap[".symbol_resolver"] = DK_SYMBOL_RESOLVER;
-  DirectiveKindMap[".private_extern"] = DK_PRIVATE_EXTERN;
-  DirectiveKindMap[".reference"] = DK_REFERENCE;
-  DirectiveKindMap[".weak_definition"] = DK_WEAK_DEFINITION;
-  DirectiveKindMap[".weak_reference"] = DK_WEAK_REFERENCE;
-  DirectiveKindMap[".weak_def_can_be_hidden"] = DK_WEAK_DEF_CAN_BE_HIDDEN;
-  DirectiveKindMap[".comm"] = DK_COMM;
-  DirectiveKindMap[".common"] = DK_COMMON;
-  DirectiveKindMap[".lcomm"] = DK_LCOMM;
-  DirectiveKindMap[".abort"] = DK_ABORT;
-  DirectiveKindMap[".include"] = DK_INCLUDE;
-  DirectiveKindMap[".incbin"] = DK_INCBIN;
-  DirectiveKindMap[".code16"] = DK_CODE16;
-  DirectiveKindMap[".code16gcc"] = DK_CODE16GCC;
-  DirectiveKindMap[".rept"] = DK_REPT;
-  DirectiveKindMap[".rep"] = DK_REPT;
-  DirectiveKindMap[".irp"] = DK_IRP;
-  DirectiveKindMap[".irpc"] = DK_IRPC;
-  DirectiveKindMap[".endr"] = DK_ENDR;
-  DirectiveKindMap[".bundle_align_mode"] = DK_BUNDLE_ALIGN_MODE;
-  DirectiveKindMap[".bundle_lock"] = DK_BUNDLE_LOCK;
-  DirectiveKindMap[".bundle_unlock"] = DK_BUNDLE_UNLOCK;
-  DirectiveKindMap[".if"] = DK_IF;
-  DirectiveKindMap[".ifeq"] = DK_IFEQ;
-  DirectiveKindMap[".ifge"] = DK_IFGE;
-  DirectiveKindMap[".ifgt"] = DK_IFGT;
-  DirectiveKindMap[".ifle"] = DK_IFLE;
-  DirectiveKindMap[".iflt"] = DK_IFLT;
-  DirectiveKindMap[".ifne"] = DK_IFNE;
-  DirectiveKindMap[".ifb"] = DK_IFB;
-  DirectiveKindMap[".ifnb"] = DK_IFNB;
-  DirectiveKindMap[".ifc"] = DK_IFC;
-  DirectiveKindMap[".ifeqs"] = DK_IFEQS;
-  DirectiveKindMap[".ifnc"] = DK_IFNC;
-  DirectiveKindMap[".ifnes"] = DK_IFNES;
-  DirectiveKindMap[".ifdef"] = DK_IFDEF;
-  DirectiveKindMap[".ifndef"] = DK_IFNDEF;
-  DirectiveKindMap[".ifnotdef"] = DK_IFNOTDEF;
-  DirectiveKindMap[".elseif"] = DK_ELSEIF;
-  DirectiveKindMap[".else"] = DK_ELSE;
-  DirectiveKindMap[".end"] = DK_END;
-  DirectiveKindMap[".endif"] = DK_ENDIF;
-  DirectiveKindMap[".skip"] = DK_SKIP;
-  DirectiveKindMap[".space"] = DK_SPACE;
-  DirectiveKindMap[".file"] = DK_FILE;
-  DirectiveKindMap[".line"] = DK_LINE;
-  DirectiveKindMap[".loc"] = DK_LOC;
-  DirectiveKindMap[".stabs"] = DK_STABS;
-  DirectiveKindMap[".cv_file"] = DK_CV_FILE;
-  DirectiveKindMap[".cv_func_id"] = DK_CV_FUNC_ID;
-  DirectiveKindMap[".cv_loc"] = DK_CV_LOC;
-  DirectiveKindMap[".cv_linetable"] = DK_CV_LINETABLE;
-  DirectiveKindMap[".cv_inline_linetable"] = DK_CV_INLINE_LINETABLE;
-  DirectiveKindMap[".cv_inline_site_id"] = DK_CV_INLINE_SITE_ID;
-  DirectiveKindMap[".cv_def_range"] = DK_CV_DEF_RANGE;
-  DirectiveKindMap[".cv_string"] = DK_CV_STRING;
-  DirectiveKindMap[".cv_stringtable"] = DK_CV_STRINGTABLE;
-  DirectiveKindMap[".cv_filechecksums"] = DK_CV_FILECHECKSUMS;
-  DirectiveKindMap[".cv_filechecksumoffset"] = DK_CV_FILECHECKSUM_OFFSET;
-  DirectiveKindMap[".cv_fpo_data"] = DK_CV_FPO_DATA;
-  DirectiveKindMap[".sleb128"] = DK_SLEB128;
-  DirectiveKindMap[".uleb128"] = DK_ULEB128;
-  DirectiveKindMap[".cfi_sections"] = DK_CFI_SECTIONS;
-  DirectiveKindMap[".cfi_startproc"] = DK_CFI_STARTPROC;
-  DirectiveKindMap[".cfi_endproc"] = DK_CFI_ENDPROC;
-  DirectiveKindMap[".cfi_def_cfa"] = DK_CFI_DEF_CFA;
-  DirectiveKindMap[".cfi_def_cfa_offset"] = DK_CFI_DEF_CFA_OFFSET;
-  DirectiveKindMap[".cfi_adjust_cfa_offset"] = DK_CFI_ADJUST_CFA_OFFSET;
-  DirectiveKindMap[".cfi_def_cfa_register"] = DK_CFI_DEF_CFA_REGISTER;
-  DirectiveKindMap[".cfi_offset"] = DK_CFI_OFFSET;
-  DirectiveKindMap[".cfi_rel_offset"] = DK_CFI_REL_OFFSET;
-  DirectiveKindMap[".cfi_personality"] = DK_CFI_PERSONALITY;
-  DirectiveKindMap[".cfi_lsda"] = DK_CFI_LSDA;
-  DirectiveKindMap[".cfi_remember_state"] = DK_CFI_REMEMBER_STATE;
-  DirectiveKindMap[".cfi_restore_state"] = DK_CFI_RESTORE_STATE;
-  DirectiveKindMap[".cfi_same_value"] = DK_CFI_SAME_VALUE;
-  DirectiveKindMap[".cfi_restore"] = DK_CFI_RESTORE;
-  DirectiveKindMap[".cfi_escape"] = DK_CFI_ESCAPE;
-  DirectiveKindMap[".cfi_return_column"] = DK_CFI_RETURN_COLUMN;
-  DirectiveKindMap[".cfi_signal_frame"] = DK_CFI_SIGNAL_FRAME;
-  DirectiveKindMap[".cfi_undefined"] = DK_CFI_UNDEFINED;
-  DirectiveKindMap[".cfi_register"] = DK_CFI_REGISTER;
-  DirectiveKindMap[".cfi_window_save"] = DK_CFI_WINDOW_SAVE;
-  DirectiveKindMap[".cfi_b_key_frame"] = DK_CFI_B_KEY_FRAME;
-  DirectiveKindMap[".macros_on"] = DK_MACROS_ON;
-  DirectiveKindMap[".macros_off"] = DK_MACROS_OFF;
-  DirectiveKindMap[".macro"] = DK_MACRO;
-  DirectiveKindMap[".exitm"] = DK_EXITM;
-  DirectiveKindMap[".endm"] = DK_ENDM;
-  DirectiveKindMap[".endmacro"] = DK_ENDMACRO;
-  DirectiveKindMap[".purgem"] = DK_PURGEM;
-  DirectiveKindMap[".err"] = DK_ERR;
-  DirectiveKindMap[".error"] = DK_ERROR;
-  DirectiveKindMap[".warning"] = DK_WARNING;
-  DirectiveKindMap[".altmacro"] = DK_ALTMACRO;
-  DirectiveKindMap[".noaltmacro"] = DK_NOALTMACRO;
-  DirectiveKindMap[".reloc"] = DK_RELOC;
-  DirectiveKindMap[".dc"] = DK_DC;
-  DirectiveKindMap[".dc.a"] = DK_DC_A;
-  DirectiveKindMap[".dc.b"] = DK_DC_B;
-  DirectiveKindMap[".dc.d"] = DK_DC_D;
-  DirectiveKindMap[".dc.l"] = DK_DC_L;
-  DirectiveKindMap[".dc.s"] = DK_DC_S;
-  DirectiveKindMap[".dc.w"] = DK_DC_W;
-  DirectiveKindMap[".dc.x"] = DK_DC_X;
-  DirectiveKindMap[".dcb"] = DK_DCB;
-  DirectiveKindMap[".dcb.b"] = DK_DCB_B;
-  DirectiveKindMap[".dcb.d"] = DK_DCB_D;
-  DirectiveKindMap[".dcb.l"] = DK_DCB_L;
-  DirectiveKindMap[".dcb.s"] = DK_DCB_S;
-  DirectiveKindMap[".dcb.w"] = DK_DCB_W;
-  DirectiveKindMap[".dcb.x"] = DK_DCB_X;
-  DirectiveKindMap[".ds"] = DK_DS;
-  DirectiveKindMap[".ds.b"] = DK_DS_B;
-  DirectiveKindMap[".ds.d"] = DK_DS_D;
-  DirectiveKindMap[".ds.l"] = DK_DS_L;
-  DirectiveKindMap[".ds.p"] = DK_DS_P;
-  DirectiveKindMap[".ds.s"] = DK_DS_S;
-  DirectiveKindMap[".ds.w"] = DK_DS_W;
-  DirectiveKindMap[".ds.x"] = DK_DS_X;
-  DirectiveKindMap[".print"] = DK_PRINT;
-  DirectiveKindMap[".addrsig"] = DK_ADDRSIG;
-  DirectiveKindMap[".addrsig_sym"] = DK_ADDRSIG_SYM;
-}
-
-MCAsmMacro *AsmParser::parseMacroLikeBody(SMLoc DirectiveLoc) {
-  AsmToken EndToken, StartToken = getTok();
-
-  unsigned NestLevel = 0;
-  while (true) {
-    // Check whether we have reached the end of the file.
-    if (getLexer().is(AsmToken::Eof)) {
-      printError(DirectiveLoc, "no matching '.endr' in definition");
-      return nullptr;
-    }
-
-    if (Lexer.is(AsmToken::Identifier) &&
-        (getTok().getIdentifier() == ".rep" ||
-         getTok().getIdentifier() == ".rept" ||
-         getTok().getIdentifier() == ".irp" ||
-         getTok().getIdentifier() == ".irpc")) {
-      ++NestLevel;
-    }
-
-    // Otherwise, check whether we have reached the .endr.
-    if (Lexer.is(AsmToken::Identifier) && getTok().getIdentifier() == ".endr") {
-      if (NestLevel == 0) {
-        EndToken = getTok();
-        Lex();
-        if (Lexer.isNot(AsmToken::EndOfStatement)) {
-          printError(getTok().getLoc(),
-                     "unexpected token in '.endr' directive");
-          return nullptr;
-        }
-        break;
-      }
-      --NestLevel;
-    }
-
-    // Otherwise, scan till the end of the statement.
-    eatToEndOfStatement();
-  }
-
-  const char *BodyStart = StartToken.getLoc().getPointer();
-  const char *BodyEnd = EndToken.getLoc().getPointer();
-  StringRef Body = StringRef(BodyStart, BodyEnd - BodyStart);
-
-  // We Are Anonymous.
-  MacroLikeBodies.emplace_back(StringRef(), Body, MCAsmMacroParameters());
-  return &MacroLikeBodies.back();
-}
-
-void AsmParser::instantiateMacroLikeBody(MCAsmMacro *M, SMLoc DirectiveLoc,
-                                         raw_svector_ostream &OS) {
-  OS << ".endr\n";
-
-  std::unique_ptr<MemoryBuffer> Instantiation =
-      MemoryBuffer::getMemBufferCopy(OS.str(), "<instantiation>");
-
-  // Create the macro instantiation object and add to the current macro
-  // instantiation stack.
-  MacroInstantiation *MI = new MacroInstantiation(
-      DirectiveLoc, CurBuffer, getTok().getLoc(), TheCondStack.size());
-  ActiveMacros.push_back(MI);
-
-  // Jump to the macro instantiation and prime the lexer.
-  CurBuffer = SrcMgr.AddNewSourceBuffer(std::move(Instantiation), SMLoc());
-  Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer)->getBuffer());
-  Lex();
-}
-
-/// parseDirectiveRept
-///   ::= .rep | .rept count
-bool AsmParser::parseDirectiveRept(SMLoc DirectiveLoc, StringRef Dir) {
-  const MCExpr *CountExpr;
-  SMLoc CountLoc = getTok().getLoc();
-  if (parseExpression(CountExpr))
-    return true;
-
-  int64_t Count;
-  if (!CountExpr->evaluateAsAbsolute(Count, getStreamer().getAssemblerPtr())) {
-    return Error(CountLoc, "unexpected token in '" + Dir + "' directive");
-  }
-
-  if (check(Count < 0, CountLoc, "Count is negative") ||
-      parseToken(AsmToken::EndOfStatement,
-                 "unexpected token in '" + Dir + "' directive"))
-    return true;
-
-  // Lex the rept definition.
-  MCAsmMacro *M = parseMacroLikeBody(DirectiveLoc);
-  if (!M)
-    return true;
-
-  // Macro instantiation is lexical, unfortunately. We construct a new buffer
-  // to hold the macro body with substitutions.
-  SmallString<256> Buf;
-  raw_svector_ostream OS(Buf);
-  while (Count--) {
-    // Note that the AtPseudoVariable is disabled for instantiations of .rep(t).
-    if (expandMacro(OS, M->Body, None, None, false, getTok().getLoc()))
-      return true;
-  }
-  instantiateMacroLikeBody(M, DirectiveLoc, OS);
-
-  return false;
-}
-
-/// parseDirectiveIrp
-/// ::= .irp symbol,values
-bool AsmParser::parseDirectiveIrp(SMLoc DirectiveLoc) {
-  MCAsmMacroParameter Parameter;
-  MCAsmMacroArguments A;
-  if (check(parseIdentifier(Parameter.Name),
-            "expected identifier in '.irp' directive") ||
-      parseToken(AsmToken::Comma, "expected comma in '.irp' directive") ||
-      parseMacroArguments(nullptr, A) ||
-      parseToken(AsmToken::EndOfStatement, "expected End of Statement"))
-    return true;
-
-  // Lex the irp definition.
-  MCAsmMacro *M = parseMacroLikeBody(DirectiveLoc);
-  if (!M)
-    return true;
-
-  // Macro instantiation is lexical, unfortunately. We construct a new buffer
-  // to hold the macro body with substitutions.
-  SmallString<256> Buf;
-  raw_svector_ostream OS(Buf);
-
-  for (const MCAsmMacroArgument &Arg : A) {
-    // Note that the AtPseudoVariable is enabled for instantiations of .irp.
-    // This is undocumented, but GAS seems to support it.
-    if (expandMacro(OS, M->Body, Parameter, Arg, true, getTok().getLoc()))
-      return true;
-  }
-
-  instantiateMacroLikeBody(M, DirectiveLoc, OS);
-
-  return false;
-}
-
-/// parseDirectiveIrpc
-/// ::= .irpc symbol,values
-bool AsmParser::parseDirectiveIrpc(SMLoc DirectiveLoc) {
-  MCAsmMacroParameter Parameter;
-  MCAsmMacroArguments A;
-
-  if (check(parseIdentifier(Parameter.Name),
-            "expected identifier in '.irpc' directive") ||
-      parseToken(AsmToken::Comma, "expected comma in '.irpc' directive") ||
-      parseMacroArguments(nullptr, A))
-    return true;
-
-  if (A.size() != 1 || A.front().size() != 1)
-    return TokError("unexpected token in '.irpc' directive");
-
-  // Eat the end of statement.
-  if (parseToken(AsmToken::EndOfStatement, "expected end of statement"))
-    return true;
-
-  // Lex the irpc definition.
-  MCAsmMacro *M = parseMacroLikeBody(DirectiveLoc);
-  if (!M)
-    return true;
-
-  // Macro instantiation is lexical, unfortunately. We construct a new buffer
-  // to hold the macro body with substitutions.
-  SmallString<256> Buf;
-  raw_svector_ostream OS(Buf);
-
-  StringRef Values = A.front().front().getString();
-  for (std::size_t I = 0, End = Values.size(); I != End; ++I) {
-    MCAsmMacroArgument Arg;
-    Arg.emplace_back(AsmToken::Identifier, Values.slice(I, I + 1));
-
-    // Note that the AtPseudoVariable is enabled for instantiations of .irpc.
-    // This is undocumented, but GAS seems to support it.
-    if (expandMacro(OS, M->Body, Parameter, Arg, true, getTok().getLoc()))
-      return true;
-  }
-
-  instantiateMacroLikeBody(M, DirectiveLoc, OS);
-
-  return false;
-}
-
-bool AsmParser::parseDirectiveEndr(SMLoc DirectiveLoc) {
-  if (ActiveMacros.empty())
-    return TokError("unmatched '.endr' directive");
-
-  // The only .repl that should get here are the ones created by
-  // instantiateMacroLikeBody.
-  assert(getLexer().is(AsmToken::EndOfStatement));
-
-  handleMacroExit();
-  return false;
-}
-
-bool AsmParser::parseDirectiveMSEmit(SMLoc IDLoc, ParseStatementInfo &Info,
-                                     size_t Len) {
-  const MCExpr *Value;
-  SMLoc ExprLoc = getLexer().getLoc();
-  if (parseExpression(Value))
-    return true;
-  const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value);
-  if (!MCE)
-    return Error(ExprLoc, "unexpected expression in _emit");
-  uint64_t IntValue = MCE->getValue();
-  if (!isUInt<8>(IntValue) && !isInt<8>(IntValue))
-    return Error(ExprLoc, "literal value out of range for directive");
-
-  Info.AsmRewrites->emplace_back(AOK_Emit, IDLoc, Len);
-  return false;
-}
-
-bool AsmParser::parseDirectiveMSAlign(SMLoc IDLoc, ParseStatementInfo &Info) {
-  const MCExpr *Value;
-  SMLoc ExprLoc = getLexer().getLoc();
-  if (parseExpression(Value))
-    return true;
-  const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value);
-  if (!MCE)
-    return Error(ExprLoc, "unexpected expression in align");
-  uint64_t IntValue = MCE->getValue();
-  if (!isPowerOf2_64(IntValue))
-    return Error(ExprLoc, "literal value not a power of two greater then zero");
-
-  Info.AsmRewrites->emplace_back(AOK_Align, IDLoc, 5, Log2_64(IntValue));
-  return false;
-}
-
-bool AsmParser::parseDirectivePrint(SMLoc DirectiveLoc) {
-  const AsmToken StrTok = getTok();
-  Lex();
-  if (StrTok.isNot(AsmToken::String) || StrTok.getString().front() != '"')
-    return Error(DirectiveLoc, "expected double quoted string after .print");
-  if (parseToken(AsmToken::EndOfStatement, "expected end of statement"))
-    return true;
-  llvm::outs() << StrTok.getStringContents() << '\n';
-  return false;
-}
-
-bool AsmParser::parseDirectiveAddrsig() {
-  getStreamer().EmitAddrsig();
-  return false;
-}
-
-bool AsmParser::parseDirectiveAddrsigSym() {
-  StringRef Name;
-  if (check(parseIdentifier(Name),
-            "expected identifier in '.addrsig_sym' directive"))
-    return true;
-  MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
-  getStreamer().EmitAddrsigSym(Sym);
-  return false;
-}
-
-// We are comparing pointers, but the pointers are relative to a single string.
-// Thus, this should always be deterministic.
-static int rewritesSort(const AsmRewrite *AsmRewriteA,
-                        const AsmRewrite *AsmRewriteB) {
-  if (AsmRewriteA->Loc.getPointer() < AsmRewriteB->Loc.getPointer())
-    return -1;
-  if (AsmRewriteB->Loc.getPointer() < AsmRewriteA->Loc.getPointer())
-    return 1;
-
-  // It's possible to have a SizeDirective, Imm/ImmPrefix and an Input/Output
-  // rewrite to the same location.  Make sure the SizeDirective rewrite is
-  // performed first, then the Imm/ImmPrefix and finally the Input/Output.  This
-  // ensures the sort algorithm is stable.
-  if (AsmRewritePrecedence[AsmRewriteA->Kind] >
-      AsmRewritePrecedence[AsmRewriteB->Kind])
-    return -1;
-
-  if (AsmRewritePrecedence[AsmRewriteA->Kind] <
-      AsmRewritePrecedence[AsmRewriteB->Kind])
-    return 1;
-  llvm_unreachable("Unstable rewrite sort.");
-}
-
-bool AsmParser::parseMSInlineAsm(
-    void *AsmLoc, std::string &AsmString, unsigned &NumOutputs,
-    unsigned &NumInputs, SmallVectorImpl<std::pair<void *, bool>> &OpDecls,
-    SmallVectorImpl<std::string> &Constraints,
-    SmallVectorImpl<std::string> &Clobbers, const MCInstrInfo *MII,
-    const MCInstPrinter *IP, MCAsmParserSemaCallback &SI) {
-  SmallVector<void *, 4> InputDecls;
-  SmallVector<void *, 4> OutputDecls;
-  SmallVector<bool, 4> InputDeclsAddressOf;
-  SmallVector<bool, 4> OutputDeclsAddressOf;
-  SmallVector<std::string, 4> InputConstraints;
-  SmallVector<std::string, 4> OutputConstraints;
-  SmallVector<unsigned, 4> ClobberRegs;
-
-  SmallVector<AsmRewrite, 4> AsmStrRewrites;
-
-  // Prime the lexer.
-  Lex();
-
-  // While we have input, parse each statement.
-  unsigned InputIdx = 0;
-  unsigned OutputIdx = 0;
-  while (getLexer().isNot(AsmToken::Eof)) {
-    // Parse curly braces marking block start/end
-    if (parseCurlyBlockScope(AsmStrRewrites))
-      continue;
-
-    ParseStatementInfo Info(&AsmStrRewrites);
-    bool StatementErr = parseStatement(Info, &SI);
-
-    if (StatementErr || Info.ParseError) {
-      // Emit pending errors if any exist.
-      printPendingErrors();
-      return true;
-    }
-
-    // No pending error should exist here.
-    assert(!hasPendingError() && "unexpected error from parseStatement");
-
-    if (Info.Opcode == ~0U)
-      continue;
-
-    const MCInstrDesc &Desc = MII->get(Info.Opcode);
-
-    // Build the list of clobbers, outputs and inputs.
-    for (unsigned i = 1, e = Info.ParsedOperands.size(); i != e; ++i) {
-      MCParsedAsmOperand &Operand = *Info.ParsedOperands[i];
-
-      // Immediate.
-      if (Operand.isImm())
-        continue;
-
-      // Register operand.
-      if (Operand.isReg() && !Operand.needAddressOf() &&
-          !getTargetParser().OmitRegisterFromClobberLists(Operand.getReg())) {
-        unsigned NumDefs = Desc.getNumDefs();
-        // Clobber.
-        if (NumDefs && Operand.getMCOperandNum() < NumDefs)
-          ClobberRegs.push_back(Operand.getReg());
-        continue;
-      }
-
-      // Expr/Input or Output.
-      StringRef SymName = Operand.getSymName();
-      if (SymName.empty())
-        continue;
-
-      void *OpDecl = Operand.getOpDecl();
-      if (!OpDecl)
-        continue;
-
-      bool isOutput = (i == 1) && Desc.mayStore();
-      SMLoc Start = SMLoc::getFromPointer(SymName.data());
-      if (isOutput) {
-        ++InputIdx;
-        OutputDecls.push_back(OpDecl);
-        OutputDeclsAddressOf.push_back(Operand.needAddressOf());
-        OutputConstraints.push_back(("=" + Operand.getConstraint()).str());
-        AsmStrRewrites.emplace_back(AOK_Output, Start, SymName.size());
-      } else {
-        InputDecls.push_back(OpDecl);
-        InputDeclsAddressOf.push_back(Operand.needAddressOf());
-        InputConstraints.push_back(Operand.getConstraint().str());
-        AsmStrRewrites.emplace_back(AOK_Input, Start, SymName.size());
-      }
-    }
-
-    // Consider implicit defs to be clobbers.  Think of cpuid and push.
-    ArrayRef<MCPhysReg> ImpDefs(Desc.getImplicitDefs(),
-                                Desc.getNumImplicitDefs());
-    ClobberRegs.insert(ClobberRegs.end(), ImpDefs.begin(), ImpDefs.end());
-  }
-
-  // Set the number of Outputs and Inputs.
-  NumOutputs = OutputDecls.size();
-  NumInputs = InputDecls.size();
-
-  // Set the unique clobbers.
-  array_pod_sort(ClobberRegs.begin(), ClobberRegs.end());
-  ClobberRegs.erase(std::unique(ClobberRegs.begin(), ClobberRegs.end()),
-                    ClobberRegs.end());
-  Clobbers.assign(ClobberRegs.size(), std::string());
-  for (unsigned I = 0, E = ClobberRegs.size(); I != E; ++I) {
-    raw_string_ostream OS(Clobbers[I]);
-    IP->printRegName(OS, ClobberRegs[I]);
-  }
-
-  // Merge the various outputs and inputs.  Output are expected first.
-  if (NumOutputs || NumInputs) {
-    unsigned NumExprs = NumOutputs + NumInputs;
-    OpDecls.resize(NumExprs);
-    Constraints.resize(NumExprs);
-    for (unsigned i = 0; i < NumOutputs; ++i) {
-      OpDecls[i] = std::make_pair(OutputDecls[i], OutputDeclsAddressOf[i]);
-      Constraints[i] = OutputConstraints[i];
-    }
-    for (unsigned i = 0, j = NumOutputs; i < NumInputs; ++i, ++j) {
-      OpDecls[j] = std::make_pair(InputDecls[i], InputDeclsAddressOf[i]);
-      Constraints[j] = InputConstraints[i];
-    }
-  }
-
-  // Build the IR assembly string.
-  std::string AsmStringIR;
-  raw_string_ostream OS(AsmStringIR);
-  StringRef ASMString =
-      SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer();
-  const char *AsmStart = ASMString.begin();
-  const char *AsmEnd = ASMString.end();
-  array_pod_sort(AsmStrRewrites.begin(), AsmStrRewrites.end(), rewritesSort);
-  for (const AsmRewrite &AR : AsmStrRewrites) {
-    AsmRewriteKind Kind = AR.Kind;
-
-    const char *Loc = AR.Loc.getPointer();
-    assert(Loc >= AsmStart && "Expected Loc to be at or after Start!");
-
-    // Emit everything up to the immediate/expression.
-    if (unsigned Len = Loc - AsmStart)
-      OS << StringRef(AsmStart, Len);
-
-    // Skip the original expression.
-    if (Kind == AOK_Skip) {
-      AsmStart = Loc + AR.Len;
-      continue;
-    }
-
-    unsigned AdditionalSkip = 0;
-    // Rewrite expressions in $N notation.
-    switch (Kind) {
-    default:
-      break;
-    case AOK_IntelExpr:
-      assert(AR.IntelExp.isValid() && "cannot write invalid intel expression");
-      if (AR.IntelExp.NeedBracs)
-        OS << "[";
-      if (AR.IntelExp.hasBaseReg())
-        OS << AR.IntelExp.BaseReg;
-      if (AR.IntelExp.hasIndexReg())
-        OS << (AR.IntelExp.hasBaseReg() ? " + " : "")
-           << AR.IntelExp.IndexReg;
-      if (AR.IntelExp.Scale > 1)
-          OS << " * $$" << AR.IntelExp.Scale;
-      if (AR.IntelExp.Imm || !AR.IntelExp.hasRegs())
-        OS << (AR.IntelExp.hasRegs() ? " + $$" : "$$") << AR.IntelExp.Imm;
-      if (AR.IntelExp.NeedBracs)
-        OS << "]";
-      break;
-    case AOK_Label:
-      OS << Ctx.getAsmInfo()->getPrivateLabelPrefix() << AR.Label;
-      break;
-    case AOK_Input:
-      OS << '$' << InputIdx++;
-      break;
-    case AOK_Output:
-      OS << '$' << OutputIdx++;
-      break;
-    case AOK_SizeDirective:
-      switch (AR.Val) {
-      default: break;
-      case 8:  OS << "byte ptr "; break;
-      case 16: OS << "word ptr "; break;
-      case 32: OS << "dword ptr "; break;
-      case 64: OS << "qword ptr "; break;
-      case 80: OS << "xword ptr "; break;
-      case 128: OS << "xmmword ptr "; break;
-      case 256: OS << "ymmword ptr "; break;
-      }
-      break;
-    case AOK_Emit:
-      OS << ".byte";
-      break;
-    case AOK_Align: {
-      // MS alignment directives are measured in bytes. If the native assembler
-      // measures alignment in bytes, we can pass it straight through.
-      OS << ".align";
-      if (getContext().getAsmInfo()->getAlignmentIsInBytes())
-        break;
-
-      // Alignment is in log2 form, so print that instead and skip the original
-      // immediate.
-      unsigned Val = AR.Val;
-      OS << ' ' << Val;
-      assert(Val < 10 && "Expected alignment less then 2^10.");
-      AdditionalSkip = (Val < 4) ? 2 : Val < 7 ? 3 : 4;
-      break;
-    }
-    case AOK_EVEN:
-      OS << ".even";
-      break;
-    case AOK_EndOfStatement:
-      OS << "\n\t";
-      break;
-    }
-
-    // Skip the original expression.
-    AsmStart = Loc + AR.Len + AdditionalSkip;
-  }
-
-  // Emit the remainder of the asm string.
-  if (AsmStart != AsmEnd)
-    OS << StringRef(AsmStart, AsmEnd - AsmStart);
-
-  AsmString = OS.str();
-  return false;
-}
-
-namespace llvm {
-namespace MCParserUtils {
-
-/// Returns whether the given symbol is used anywhere in the given expression,
-/// or subexpressions.
-static bool isSymbolUsedInExpression(const MCSymbol *Sym, const MCExpr *Value) {
-  switch (Value->getKind()) {
-  case MCExpr::Binary: {
-    const MCBinaryExpr *BE = static_cast<const MCBinaryExpr *>(Value);
-    return isSymbolUsedInExpression(Sym, BE->getLHS()) ||
-           isSymbolUsedInExpression(Sym, BE->getRHS());
-  }
-  case MCExpr::Target:
-  case MCExpr::Constant:
-    return false;
-  case MCExpr::SymbolRef: {
-    const MCSymbol &S =
-        static_cast<const MCSymbolRefExpr *>(Value)->getSymbol();
-    if (S.isVariable())
-      return isSymbolUsedInExpression(Sym, S.getVariableValue());
-    return &S == Sym;
-  }
-  case MCExpr::Unary:
-    return isSymbolUsedInExpression(
-        Sym, static_cast<const MCUnaryExpr *>(Value)->getSubExpr());
-  }
-
-  llvm_unreachable("Unknown expr kind!");
-}
-
-bool parseAssignmentExpression(StringRef Name, bool allow_redef,
-                               MCAsmParser &Parser, MCSymbol *&Sym,
-                               const MCExpr *&Value) {
-
-  // FIXME: Use better location, we should use proper tokens.
-  SMLoc EqualLoc = Parser.getTok().getLoc();
-  if (Parser.parseExpression(Value))
-    return Parser.TokError("missing expression");
-
-  // Note: we don't count b as used in "a = b". This is to allow
-  // a = b
-  // b = c
-
-  if (Parser.parseToken(AsmToken::EndOfStatement))
-    return true;
-
-  // Validate that the LHS is allowed to be a variable (either it has not been
-  // used as a symbol, or it is an absolute symbol).
-  Sym = Parser.getContext().lookupSymbol(Name);
-  if (Sym) {
-    // Diagnose assignment to a label.
-    //
-    // FIXME: Diagnostics. Note the location of the definition as a label.
-    // FIXME: Diagnose assignment to protected identifier (e.g., register name).
-    if (isSymbolUsedInExpression(Sym, Value))
-      return Parser.Error(EqualLoc, "Recursive use of '" + Name + "'");
-    else if (Sym->isUndefined(/*SetUsed*/ false) && !Sym->isUsed() &&
-             !Sym->isVariable())
-      ; // Allow redefinitions of undefined symbols only used in directives.
-    else if (Sym->isVariable() && !Sym->isUsed() && allow_redef)
-      ; // Allow redefinitions of variables that haven't yet been used.
-    else if (!Sym->isUndefined() && (!Sym->isVariable() || !allow_redef))
-      return Parser.Error(EqualLoc, "redefinition of '" + Name + "'");
-    else if (!Sym->isVariable())
-      return Parser.Error(EqualLoc, "invalid assignment to '" + Name + "'");
-    else if (!isa<MCConstantExpr>(Sym->getVariableValue()))
-      return Parser.Error(EqualLoc,
-                          "invalid reassignment of non-absolute variable '" +
-                              Name + "'");
-  } else if (Name == ".") {
-    Parser.getStreamer().emitValueToOffset(Value, 0, EqualLoc);
-    return false;
-  } else
-    Sym = Parser.getContext().getOrCreateSymbol(Name);
-
-  Sym->setRedefinable(allow_redef);
-
-  return false;
-}
-
-} // end namespace MCParserUtils
-} // end namespace llvm
-
-/// Create an MCAsmParser instance.
-MCAsmParser *llvm::createMCAsmParser(SourceMgr &SM, MCContext &C,
-                                     MCStreamer &Out, const MCAsmInfo &MAI,
-                                     unsigned CB) {
-  return new AsmParser(SM, C, Out, MAI, CB);
-}