Don't indent inside a namespace. Don't duplicate a function name in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208389 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 473 insertions, 501 deletions

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index 4d7e6d099b..d5c3e721b0 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -23,518 +23,490 @@
 #include "llvm/Support/ErrorHandling.h"
 
 namespace llvm {
-  class AsmPrinterHandler;
-  class BlockAddress;
-  class ByteStreamer;
-  class GCStrategy;
-  class Constant;
-  class ConstantArray;
-  class GCMetadataPrinter;
-  class GlobalValue;
-  class GlobalVariable;
-  class MachineBasicBlock;
-  class MachineFunction;
-  class MachineInstr;
-  class MachineLocation;
-  class MachineLoopInfo;
-  class MachineLoop;
-  class MachineConstantPoolValue;
-  class MachineJumpTableInfo;
-  class MachineModuleInfo;
-  class MCAsmInfo;
-  class MCCFIInstruction;
-  class MCContext;
-  class MCInst;
-  class MCInstrInfo;
-  class MCSection;
-  class MCStreamer;
-  class MCSubtargetInfo;
-  class MCSymbol;
-  class MDNode;
-  class DwarfDebug;
-  class DwarfException;
-  class Mangler;
-  class TargetLoweringObjectFile;
-  class DataLayout;
-  class TargetMachine;
-
-  /// AsmPrinter - This class is intended to be used as a driving class for all
-  /// asm writers.
-  class AsmPrinter : public MachineFunctionPass {
-  public:
-    /// Target machine description.
-    ///
-    TargetMachine &TM;
-
-    /// Target Asm Printer information.
-    ///
-    const MCAsmInfo *MAI;
-
-    const MCInstrInfo *MII;
-    /// OutContext - This is the context for the output file that we are
-    /// streaming.  This owns all of the global MC-related objects for the
-    /// generated translation unit.
-    MCContext &OutContext;
-
-    /// OutStreamer - This is the MCStreamer object for the file we are
-    /// generating.  This contains the transient state for the current
-    /// translation unit that we are generating (such as the current section
-    /// etc).
-    MCStreamer &OutStreamer;
-
-    /// The current machine function.
-    const MachineFunction *MF;
-
-    /// MMI - This is a pointer to the current MachineModuleInfo.
-    MachineModuleInfo *MMI;
-
-    /// Name-mangler for global names.
-    ///
-    Mangler *Mang;
-
-    /// The symbol for the current function. This is recalculated at the
-    /// beginning of each call to runOnMachineFunction().
-    ///
-    MCSymbol *CurrentFnSym;
-
-    /// The symbol used to represent the start of the current function for the
-    /// purpose of calculating its size (e.g. using the .size directive). By
-    /// default, this is equal to CurrentFnSym.
-    MCSymbol *CurrentFnSymForSize;
-
-  private:
-    // GCMetadataPrinters - The garbage collection metadata printer table.
-    void *GCMetadataPrinters;  // Really a DenseMap.
-
-    /// VerboseAsm - Emit comments in assembly output if this is true.
-    ///
-    bool VerboseAsm;
-    static char ID;
-
-    /// If VerboseAsm is set, a pointer to the loop info for this
-    /// function.
-    MachineLoopInfo *LI;
-
-    struct HandlerInfo {
-      AsmPrinterHandler *Handler;
-      const char *TimerName, *TimerGroupName;
-      HandlerInfo(AsmPrinterHandler *Handler, const char *TimerName,
-                  const char *TimerGroupName)
-          : Handler(Handler), TimerName(TimerName),
-            TimerGroupName(TimerGroupName) {}
-    };
-    /// Handlers - a vector of all debug/EH info emitters we should use.
-    /// This vector maintains ownership of the emitters.
-    SmallVector<HandlerInfo, 1> Handlers;
-
-    /// DD - If the target supports dwarf debug info, this pointer is non-null.
-    DwarfDebug *DD;
-
-  protected:
-    explicit AsmPrinter(TargetMachine &TM, MCStreamer &Streamer);
-
-  public:
-    virtual ~AsmPrinter();
-
-    DwarfDebug *getDwarfDebug() { return DD; }
-
-    /// isVerbose - Return true if assembly output should contain comments.
-    ///
-    bool isVerbose() const { return VerboseAsm; }
-
-    /// getFunctionNumber - Return a unique ID for the current function.
-    ///
-    unsigned getFunctionNumber() const;
-
-    /// getObjFileLowering - Return information about object file lowering.
-    const TargetLoweringObjectFile &getObjFileLowering() const;
-
-    /// getDataLayout - Return information about data layout.
-    const DataLayout &getDataLayout() const;
-
-    /// getSubtargetInfo - Return information about subtarget.
-    const MCSubtargetInfo &getSubtargetInfo() const;
-
-    void EmitToStreamer(MCStreamer &S, const MCInst &Inst);
-
-    /// getTargetTriple - Return the target triple string.
-    StringRef getTargetTriple() const;
-
-    /// getCurrentSection() - Return the current section we are emitting to.
-    const MCSection *getCurrentSection() const;
-
-    void getNameWithPrefix(SmallVectorImpl<char> &Name,
-                           const GlobalValue *GV) const;
-
-    MCSymbol *getSymbol(const GlobalValue *GV) const;
-
-    //===------------------------------------------------------------------===//
-    // MachineFunctionPass Implementation.
-    //===------------------------------------------------------------------===//
-
-    /// getAnalysisUsage - Record analysis usage.
-    ///
-    void getAnalysisUsage(AnalysisUsage &AU) const override;
-
-    /// doInitialization - Set up the AsmPrinter when we are working on a new
-    /// module.  If your pass overrides this, it must make sure to explicitly
-    /// call this implementation.
-    bool doInitialization(Module &M) override;
+class AsmPrinterHandler;
+class BlockAddress;
+class ByteStreamer;
+class GCStrategy;
+class Constant;
+class ConstantArray;
+class GCMetadataPrinter;
+class GlobalValue;
+class GlobalVariable;
+class MachineBasicBlock;
+class MachineFunction;
+class MachineInstr;
+class MachineLocation;
+class MachineLoopInfo;
+class MachineLoop;
+class MachineConstantPoolValue;
+class MachineJumpTableInfo;
+class MachineModuleInfo;
+class MCAsmInfo;
+class MCCFIInstruction;
+class MCContext;
+class MCInst;
+class MCInstrInfo;
+class MCSection;
+class MCStreamer;
+class MCSubtargetInfo;
+class MCSymbol;
+class MDNode;
+class DwarfDebug;
+class DwarfException;
+class Mangler;
+class TargetLoweringObjectFile;
+class DataLayout;
+class TargetMachine;
+
+/// This class is intended to be used as a driving class for all asm writers.
+class AsmPrinter : public MachineFunctionPass {
+public:
+  /// Target machine description.
+  ///
+  TargetMachine &TM;
+
+  /// Target Asm Printer information.
+  ///
+  const MCAsmInfo *MAI;
+
+  const MCInstrInfo *MII;
+  /// This is the context for the output file that we are streaming. This owns
+  /// all of the global MC-related objects for the generated translation unit.
+  MCContext &OutContext;
+
+  /// This is the MCStreamer object for the file we are generating. This
+  /// contains the transient state for the current translation unit that we are
+  /// generating (such as the current section etc).
+  MCStreamer &OutStreamer;
+
+  /// The current machine function.
+  const MachineFunction *MF;
+
+  /// This is a pointer to the current MachineModuleInfo.
+  MachineModuleInfo *MMI;
+
+  /// Name-mangler for global names.
+  ///
+  Mangler *Mang;
+
+  /// The symbol for the current function. This is recalculated at the beginning
+  /// of each call to runOnMachineFunction().
+  ///
+  MCSymbol *CurrentFnSym;
+
+  /// The symbol used to represent the start of the current function for the
+  /// purpose of calculating its size (e.g. using the .size directive). By
+  /// default, this is equal to CurrentFnSym.
+  MCSymbol *CurrentFnSymForSize;
+
+private:
+  // The garbage collection metadata printer table.
+  void *GCMetadataPrinters; // Really a DenseMap.
+
+  /// Emit comments in assembly output if this is true.
+  ///
+  bool VerboseAsm;
+  static char ID;
+
+  /// If VerboseAsm is set, a pointer to the loop info for this function.
+  MachineLoopInfo *LI;
+
+  struct HandlerInfo {
+    AsmPrinterHandler *Handler;
+    const char *TimerName, *TimerGroupName;
+    HandlerInfo(AsmPrinterHandler *Handler, const char *TimerName,
+                const char *TimerGroupName)
+        : Handler(Handler), TimerName(TimerName),
+          TimerGroupName(TimerGroupName) {}
+  };
+  /// A vector of all debug/EH info emitters we should use. This vector
+  /// maintains ownership of the emitters.
+  SmallVector<HandlerInfo, 1> Handlers;
 
-    /// doFinalization - Shut down the asmprinter.  If you override this in your
-    /// pass, you must make sure to call it explicitly.
-    bool doFinalization(Module &M) override;
-
-    /// runOnMachineFunction - Emit the specified function out to the
-    /// OutStreamer.
-    bool runOnMachineFunction(MachineFunction &MF) override {
-      SetupMachineFunction(MF);
-      EmitFunctionHeader();
-      EmitFunctionBody();
-      return false;
-    }
+  /// If the target supports dwarf debug info, this pointer is non-null.
+  DwarfDebug *DD;
 
-    //===------------------------------------------------------------------===//
-    // Coarse grained IR lowering routines.
-    //===------------------------------------------------------------------===//
-
-    /// SetupMachineFunction - This should be called when a new MachineFunction
-    /// is being processed from runOnMachineFunction.
-    void SetupMachineFunction(MachineFunction &MF);
+protected:
+  explicit AsmPrinter(TargetMachine &TM, MCStreamer &Streamer);
 
-    /// EmitFunctionHeader - This method emits the header for the current
-    /// function.
-    void EmitFunctionHeader();
+public:
+  virtual ~AsmPrinter();
 
-    /// EmitFunctionBody - This method emits the body and trailer for a
-    /// function.
-    void EmitFunctionBody();
+  DwarfDebug *getDwarfDebug() { return DD; }
 
-    void emitCFIInstruction(const MachineInstr &MI);
-
-    enum CFIMoveType {
-      CFI_M_None,
-      CFI_M_EH,
-      CFI_M_Debug
-    };
-    CFIMoveType needsCFIMoves();
+  /// Return true if assembly output should contain comments.
+  ///
+  bool isVerbose() const { return VerboseAsm; }
 
-    bool needsSEHMoves();
+  /// Return a unique ID for the current function.
+  ///
+  unsigned getFunctionNumber() const;
 
-    /// EmitConstantPool - Print to the current output stream assembly
-    /// representations of the constants in the constant pool MCP. This is
-    /// used to print out constants which have been "spilled to memory" by
-    /// the code generator.
-    ///
-    virtual void EmitConstantPool();
+  /// Return information about object file lowering.
+  const TargetLoweringObjectFile &getObjFileLowering() const;
 
-    /// EmitJumpTableInfo - Print assembly representations of the jump tables
-    /// used by the current function to the current output stream.
-    ///
-    void EmitJumpTableInfo();
+  /// Return information about data layout.
+  const DataLayout &getDataLayout() const;
 
-    /// EmitGlobalVariable - Emit the specified global variable to the .s file.
-    virtual void EmitGlobalVariable(const GlobalVariable *GV);
+  /// Return information about subtarget.
+  const MCSubtargetInfo &getSubtargetInfo() const;
 
-    /// EmitSpecialLLVMGlobal - Check to see if the specified global is a
-    /// special global used by LLVM.  If so, emit it and return true, otherwise
-    /// do nothing and return false.
-    bool EmitSpecialLLVMGlobal(const GlobalVariable *GV);
+  void EmitToStreamer(MCStreamer &S, const MCInst &Inst);
 
-    /// EmitAlignment - Emit an alignment directive to the specified power of
-    /// two boundary.  For example, if you pass in 3 here, you will get an 8
-    /// byte alignment.  If a global value is specified, and if that global has
-    /// an explicit alignment requested, it will override the alignment request
-    /// if required for correctness.
-    ///
-    void EmitAlignment(unsigned NumBits, const GlobalValue *GV = nullptr) const;
-
-    /// EmitBasicBlockStart - This method prints the label for the specified
-    /// MachineBasicBlock, an alignment (if present) and a comment describing
-    /// it if appropriate.
-    void EmitBasicBlockStart(const MachineBasicBlock &MBB) const;
-
-    /// \brief Print a general LLVM constant to the .s file.
-    void EmitGlobalConstant(const Constant *CV);
-
-
-    //===------------------------------------------------------------------===//
-    // Overridable Hooks
-    //===------------------------------------------------------------------===//
-
-    // Targets can, or in the case of EmitInstruction, must implement these to
-    // customize output.
-
-    /// EmitStartOfAsmFile - This virtual method can be overridden by targets
-    /// that want to emit something at the start of their file.
-    virtual void EmitStartOfAsmFile(Module &) {}
-
-    /// EmitEndOfAsmFile - This virtual method can be overridden by targets that
-    /// want to emit something at the end of their file.
-    virtual void EmitEndOfAsmFile(Module &) {}
-
-    /// EmitFunctionBodyStart - Targets can override this to emit stuff before
-    /// the first basic block in the function.
-    virtual void EmitFunctionBodyStart() {}
-
-    /// EmitFunctionBodyEnd - Targets can override this to emit stuff after
-    /// the last basic block in the function.
-    virtual void EmitFunctionBodyEnd() {}
-
-    /// EmitInstruction - Targets should implement this to emit instructions.
-    virtual void EmitInstruction(const MachineInstr *) {
-      llvm_unreachable("EmitInstruction not implemented");
-    }
-
-    /// GetCPISymbol - Return the symbol for the specified constant pool entry.
-    virtual MCSymbol *GetCPISymbol(unsigned CPID) const;
-
-    virtual void EmitFunctionEntryLabel();
-
-    virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
-
-    /// EmitXXStructor - Targets can override this to change how global
-    /// constants that are part of a C++ static/global constructor list are
-    /// emitted.
-    virtual void EmitXXStructor(const Constant *CV) {
-      EmitGlobalConstant(CV);
-    }
-
-    /// isBlockOnlyReachableByFallthough - Return true if the basic block has
-    /// exactly one predecessor and the control transfer mechanism between
-    /// the predecessor and this block is a fall-through.
-    virtual bool
-    isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const;
-
-    /// emitImplicitDef - Targets can override this to customize the output of
-    /// IMPLICIT_DEF instructions in verbose mode.
-    virtual void emitImplicitDef(const MachineInstr *MI) const;
-
-    //===------------------------------------------------------------------===//
-    // Symbol Lowering Routines.
-    //===------------------------------------------------------------------===//
-  public:
-
-    /// GetTempSymbol - Return the MCSymbol corresponding to the assembler
-    /// temporary label with the specified stem and unique ID.
-    MCSymbol *GetTempSymbol(Twine Name, unsigned ID) const;
-
-    /// GetTempSymbol - Return an assembler temporary label with the specified
-    /// stem.
-    MCSymbol *GetTempSymbol(Twine Name) const;
-
-    /// Return the MCSymbol for a private symbol with global value name as its
-    /// base, with the specified suffix.
-    MCSymbol *getSymbolWithGlobalValueBase(const GlobalValue *GV,
-                                           StringRef Suffix) const;
-
-    /// GetExternalSymbolSymbol - Return the MCSymbol for the specified
-    /// ExternalSymbol.
-    MCSymbol *GetExternalSymbolSymbol(StringRef Sym) const;
-
-    /// GetJTISymbol - Return the symbol for the specified jump table entry.
-    MCSymbol *GetJTISymbol(unsigned JTID, bool isLinkerPrivate = false) const;
-
-    /// GetJTSetSymbol - Return the symbol for the specified jump table .set
-    /// FIXME: privatize to AsmPrinter.
-    MCSymbol *GetJTSetSymbol(unsigned UID, unsigned MBBID) const;
-
-    /// GetBlockAddressSymbol - Return the MCSymbol used to satisfy BlockAddress
-    /// uses of the specified basic block.
-    MCSymbol *GetBlockAddressSymbol(const BlockAddress *BA) const;
-    MCSymbol *GetBlockAddressSymbol(const BasicBlock *BB) const;
-
-    //===------------------------------------------------------------------===//
-    // Emission Helper Routines.
-    //===------------------------------------------------------------------===//
-  public:
-    /// printOffset - This is just convenient handler for printing offsets.
-    void printOffset(int64_t Offset, raw_ostream &OS) const;
-
-    /// EmitInt8 - Emit a byte directive and value.
-    ///
-    void EmitInt8(int Value) const;
-
-    /// EmitInt16 - Emit a short directive and value.
-    ///
-    void EmitInt16(int Value) const;
-
-    /// EmitInt32 - Emit a long directive and value.
-    ///
-    void EmitInt32(int Value) const;
-
-    /// EmitLabelDifference - Emit something like ".long Hi-Lo" where the size
-    /// in bytes of the directive is specified by Size and Hi/Lo specify the
-    /// labels.  This implicitly uses .set if it is available.
-    void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
-                             unsigned Size) const;
-
-    /// EmitLabelOffsetDifference - Emit something like ".long Hi+Offset-Lo"
-    /// where the size in bytes of the directive is specified by Size and Hi/Lo
-    /// specify the labels.  This implicitly uses .set if it is available.
-    void EmitLabelOffsetDifference(const MCSymbol *Hi, uint64_t Offset,
-                                   const MCSymbol *Lo, unsigned Size) const;
-
-    /// EmitLabelPlusOffset - Emit something like ".long Label+Offset"
-    /// where the size in bytes of the directive is specified by Size and Label
-    /// specifies the label.  This implicitly uses .set if it is available.
-    void EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
-                             unsigned Size,
-                             bool IsSectionRelative = false) const;
-
-    /// EmitLabelReference - Emit something like ".long Label"
-    /// where the size in bytes of the directive is specified by Size and Label
-    /// specifies the label.
-    void EmitLabelReference(const MCSymbol *Label, unsigned Size,
-                            bool IsSectionRelative = false) const {
-      EmitLabelPlusOffset(Label, 0, Size, IsSectionRelative);
-    }
-
-    //===------------------------------------------------------------------===//
-    // Dwarf Emission Helper Routines
-    //===------------------------------------------------------------------===//
-
-    /// EmitSLEB128 - emit the specified signed leb128 value.
-    void EmitSLEB128(int64_t Value, const char *Desc = nullptr) const;
-
-    /// EmitULEB128 - emit the specified unsigned leb128 value.
-    void EmitULEB128(uint64_t Value, const char *Desc = nullptr,
-                     unsigned PadTo = 0) const;
-
-    /// EmitCFAByte - Emit a .byte 42 directive for a DW_CFA_xxx value.
-    void EmitCFAByte(unsigned Val) const;
-
-    /// EmitEncodingByte - Emit a .byte 42 directive that corresponds to an
-    /// encoding.  If verbose assembly output is enabled, we output comments
-    /// describing the encoding.  Desc is a string saying what the encoding is
-    /// specifying (e.g. "LSDA").
-    void EmitEncodingByte(unsigned Val, const char *Desc = nullptr) const;
-
-    /// GetSizeOfEncodedValue - Return the size of the encoding in bytes.
-    unsigned GetSizeOfEncodedValue(unsigned Encoding) const;
-
-    /// EmitReference - Emit reference to a ttype global with a specified encoding.
-    void EmitTTypeReference(const GlobalValue *GV, unsigned Encoding) const;
-
-    /// EmitSectionOffset - Emit the 4-byte offset of Label from the start of
-    /// its section.  This can be done with a special directive if the target
-    /// supports it (e.g. cygwin) or by emitting it as an offset from a label at
-    /// the start of the section.
-    ///
-    /// SectionLabel is a temporary label emitted at the start of the section
-    /// that Label lives in.
-    void EmitSectionOffset(const MCSymbol *Label,
-                           const MCSymbol *SectionLabel) const;
-
-    /// getISAEncoding - Get the value for DW_AT_APPLE_isa. Zero if no isa
-    /// encoding specified.
-    virtual unsigned getISAEncoding() { return 0; }
-
-    /// \brief Emit a partial DWARF register operation.
-    /// \param MLoc             the register
-    /// \param PieceSize        size and
-    /// \param PieceOffset      offset of the piece in bits, if this is one
-    ///                         piece of an aggregate value.
-    ///
-    /// If size and offset is zero an operation for the entire
-    /// register is emitted: Some targets do not provide a DWARF
-    /// register number for every register.  If this is the case, this
-    /// function will attempt to emit a DWARF register by emitting a
-    /// piece of a super-register or by piecing together multiple
-    /// subregisters that alias the register.
-    void EmitDwarfRegOpPiece(ByteStreamer &BS, const MachineLocation &MLoc,
-                             unsigned PieceSize = 0,
-                             unsigned PieceOffset = 0) const;
-
-    /// EmitDwarfRegOp - Emit dwarf register operation.
-    /// \param Indirect   whether this is a register-indirect address
-    virtual void EmitDwarfRegOp(ByteStreamer &BS, const MachineLocation &MLoc,
-                                bool Indirect) const;
-
-    //===------------------------------------------------------------------===//
-    // Dwarf Lowering Routines
-    //===------------------------------------------------------------------===//
-
-    /// \brief Emit frame instruction to describe the layout of the frame.
-    void emitCFIInstruction(const MCCFIInstruction &Inst) const;
-
-    //===------------------------------------------------------------------===//
-    // Inline Asm Support
-    //===------------------------------------------------------------------===//
-  public:
-    // These are hooks that targets can override to implement inline asm
-    // support.  These should probably be moved out of AsmPrinter someday.
-
-    /// PrintSpecial - Print information related to the specified machine instr
-    /// that is independent of the operand, and may be independent of the instr
-    /// itself.  This can be useful for portably encoding the comment character
-    /// or other bits of target-specific knowledge into the asmstrings.  The
-    /// syntax used is ${:comment}.  Targets can override this to add support
-    /// for their own strange codes.
-    virtual void PrintSpecial(const MachineInstr *MI, raw_ostream &OS,
-                              const char *Code) const;
-
-    /// PrintAsmOperand - Print the specified operand of MI, an INLINEASM
-    /// instruction, using the specified assembler variant.  Targets should
-    /// override this to format as appropriate.  This method can return true if
-    /// the operand is erroneous.
-    virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                 unsigned AsmVariant, const char *ExtraCode,
-                                 raw_ostream &OS);
-
-    /// PrintAsmMemoryOperand - Print the specified operand of MI, an INLINEASM
-    /// instruction, using the specified assembler variant as an address.
-    /// Targets should override this to format as appropriate.  This method can
-    /// return true if the operand is erroneous.
-    virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                                       unsigned AsmVariant,
-                                       const char *ExtraCode, raw_ostream &OS);
-
-    /// Let the target do anything it needs to do after emitting inlineasm.
-    /// This callback can be used restore the original mode in case the
-    /// inlineasm contains directives to switch modes.
-    /// \p StartInfo - the original subtarget info before inline asm
-    /// \p EndInfo   - the final subtarget info after parsing the inline asm,
-    ///                or NULL if the value is unknown.
-    virtual void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
-                                  const MCSubtargetInfo *EndInfo) const;
-
-  private:
-    /// Private state for PrintSpecial()
-    // Assign a unique ID to this machine instruction.
-    mutable const MachineInstr *LastMI;
-    mutable unsigned LastFn;
-    mutable unsigned Counter;
-    mutable unsigned SetCounter;
-
-    /// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
-    void EmitInlineAsm(StringRef Str, const MDNode *LocMDNode = nullptr,
-                       InlineAsm::AsmDialect AsmDialect =
-                           InlineAsm::AD_ATT) const;
-
-    /// EmitInlineAsm - This method formats and emits the specified machine
-    /// instruction that is an inline asm.
-    void EmitInlineAsm(const MachineInstr *MI) const;
-
-    //===------------------------------------------------------------------===//
-    // Internal Implementation Details
-    //===------------------------------------------------------------------===//
-
-    /// EmitVisibility - This emits visibility information about symbol, if
-    /// this is suported by the target.
-    void EmitVisibility(MCSymbol *Sym, unsigned Visibility,
-                        bool IsDefinition = true) const;
-
-    void EmitLinkage(const GlobalValue *GV, MCSymbol *GVSym) const;
-
-    void EmitJumpTableEntry(const MachineJumpTableInfo *MJTI,
-                            const MachineBasicBlock *MBB, unsigned uid) const;
-    void EmitLLVMUsedList(const ConstantArray *InitList);
-    /// Emit llvm.ident metadata in an '.ident' directive.
-    void EmitModuleIdents(Module &M);
-    void EmitXXStructorList(const Constant *List, bool isCtor);
-    GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy &C);
-  };
+  /// Return the target triple string.
+  StringRef getTargetTriple() const;
+
+  /// Return the current section we are emitting to.
+  const MCSection *getCurrentSection() const;
+
+  void getNameWithPrefix(SmallVectorImpl<char> &Name,
+                         const GlobalValue *GV) const;
+
+  MCSymbol *getSymbol(const GlobalValue *GV) const;
+
+  //===------------------------------------------------------------------===//
+  // MachineFunctionPass Implementation.
+  //===------------------------------------------------------------------===//
+
+  /// Record analysis usage.
+  ///
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+
+  /// Set up the AsmPrinter when we are working on a new module. If your pass
+  /// overrides this, it must make sure to explicitly call this implementation.
+  bool doInitialization(Module &M) override;
+
+  /// Shut down the asmprinter. If you override this in your pass, you must make
+  /// sure to call it explicitly.
+  bool doFinalization(Module &M) override;
+
+  /// Emit the specified function out to the OutStreamer.
+  bool runOnMachineFunction(MachineFunction &MF) override {
+    SetupMachineFunction(MF);
+    EmitFunctionHeader();
+    EmitFunctionBody();
+    return false;
+  }
+
+  //===------------------------------------------------------------------===//
+  // Coarse grained IR lowering routines.
+  //===------------------------------------------------------------------===//
+
+  /// This should be called when a new MachineFunction is being processed from
+  /// runOnMachineFunction.
+  void SetupMachineFunction(MachineFunction &MF);
+
+  /// This method emits the header for the current function.
+  void EmitFunctionHeader();
+
+  /// This method emits the body and trailer for a function.
+  void EmitFunctionBody();
+
+  void emitCFIInstruction(const MachineInstr &MI);
+
+  enum CFIMoveType { CFI_M_None, CFI_M_EH, CFI_M_Debug };
+  CFIMoveType needsCFIMoves();
+
+  bool needsSEHMoves();
+
+  /// Print to the current output stream assembly representations of the
+  /// constants in the constant pool MCP. This is used to print out constants
+  /// which have been "spilled to memory" by the code generator.
+  ///
+  virtual void EmitConstantPool();
+
+  /// Print assembly representations of the jump tables used by the current
+  /// function to the current output stream.
+  ///
+  void EmitJumpTableInfo();
+
+  /// Emit the specified global variable to the .s file.
+  virtual void EmitGlobalVariable(const GlobalVariable *GV);
+
+  /// Check to see if the specified global is a special global used by LLVM. If
+  /// so, emit it and return true, otherwise do nothing and return false.
+  bool EmitSpecialLLVMGlobal(const GlobalVariable *GV);
+
+  /// Emit an alignment directive to the specified power of two boundary. For
+  /// example, if you pass in 3 here, you will get an 8 byte alignment. If a
+  /// global value is specified, and if that global has an explicit alignment
+  /// requested, it will override the alignment request if required for
+  /// correctness.
+  ///
+  void EmitAlignment(unsigned NumBits, const GlobalValue *GV = nullptr) const;
+
+  /// This method prints the label for the specified MachineBasicBlock, an
+  /// alignment (if present) and a comment describing it if appropriate.
+  void EmitBasicBlockStart(const MachineBasicBlock &MBB) const;
+
+  /// \brief Print a general LLVM constant to the .s file.
+  void EmitGlobalConstant(const Constant *CV);
+
+  //===------------------------------------------------------------------===//
+  // Overridable Hooks
+  //===------------------------------------------------------------------===//
+
+  // Targets can, or in the case of EmitInstruction, must implement these to
+  // customize output.
+
+  /// This virtual method can be overridden by targets that want to emit
+  /// something at the start of their file.
+  virtual void EmitStartOfAsmFile(Module &) {}
+
+  /// This virtual method can be overridden by targets that want to emit
+  /// something at the end of their file.
+  virtual void EmitEndOfAsmFile(Module &) {}
+
+  /// Targets can override this to emit stuff before the first basic block in
+  /// the function.
+  virtual void EmitFunctionBodyStart() {}
+
+  /// Targets can override this to emit stuff after the last basic block in the
+  /// function.
+  virtual void EmitFunctionBodyEnd() {}
+
+  /// Targets should implement this to emit instructions.
+  virtual void EmitInstruction(const MachineInstr *) {
+    llvm_unreachable("EmitInstruction not implemented");
+  }
+
+  /// Return the symbol for the specified constant pool entry.
+  virtual MCSymbol *GetCPISymbol(unsigned CPID) const;
+
+  virtual void EmitFunctionEntryLabel();
+
+  virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
+
+  /// Targets can override this to change how global constants that are part of
+  /// a C++ static/global constructor list are emitted.
+  virtual void EmitXXStructor(const Constant *CV) { EmitGlobalConstant(CV); }
+
+  /// Return true if the basic block has exactly one predecessor and the control
+  /// transfer mechanism between the predecessor and this block is a
+  /// fall-through.
+  virtual bool
+  isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const;
+
+  /// Targets can override this to customize the output of IMPLICIT_DEF
+  /// instructions in verbose mode.
+  virtual void emitImplicitDef(const MachineInstr *MI) const;
+
+  //===------------------------------------------------------------------===//
+  // Symbol Lowering Routines.
+  //===------------------------------------------------------------------===//
+public:
+  /// Return the MCSymbol corresponding to the assembler temporary label with
+  /// the specified stem and unique ID.
+  MCSymbol *GetTempSymbol(Twine Name, unsigned ID) const;
+
+  /// Return an assembler temporary label with the specified stem.
+  MCSymbol *GetTempSymbol(Twine Name) const;
+
+  /// Return the MCSymbol for a private symbol with global value name as its
+  /// base, with the specified suffix.
+  MCSymbol *getSymbolWithGlobalValueBase(const GlobalValue *GV,
+                                         StringRef Suffix) const;
+
+  /// Return the MCSymbol for the specified ExternalSymbol.
+  MCSymbol *GetExternalSymbolSymbol(StringRef Sym) const;
+
+  /// Return the symbol for the specified jump table entry.
+  MCSymbol *GetJTISymbol(unsigned JTID, bool isLinkerPrivate = false) const;
+
+  /// Return the symbol for the specified jump table .set
+  /// FIXME: privatize to AsmPrinter.
+  MCSymbol *GetJTSetSymbol(unsigned UID, unsigned MBBID) const;
+
+  /// Return the MCSymbol used to satisfy BlockAddress uses of the specified
+  /// basic block.
+  MCSymbol *GetBlockAddressSymbol(const BlockAddress *BA) const;
+  MCSymbol *GetBlockAddressSymbol(const BasicBlock *BB) const;
+
+  //===------------------------------------------------------------------===//
+  // Emission Helper Routines.
+  //===------------------------------------------------------------------===//
+public:
+  /// This is just convenient handler for printing offsets.
+  void printOffset(int64_t Offset, raw_ostream &OS) const;
+
+  /// Emit a byte directive and value.
+  ///
+  void EmitInt8(int Value) const;
+
+  /// Emit a short directive and value.
+  ///
+  void EmitInt16(int Value) const;
+
+  /// Emit a long directive and value.
+  ///
+  void EmitInt32(int Value) const;
+
+  /// Emit something like ".long Hi-Lo" where the size in bytes of the directive
+  /// is specified by Size and Hi/Lo specify the labels.  This implicitly uses
+  /// .set if it is available.
+  void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
+                           unsigned Size) const;
+
+  /// Emit something like ".long Hi+Offset-Lo" where the size in bytes of the
+  /// directive is specified by Size and Hi/Lo specify the labels.  This
+  /// implicitly uses .set if it is available.
+  void EmitLabelOffsetDifference(const MCSymbol *Hi, uint64_t Offset,
+                                 const MCSymbol *Lo, unsigned Size) const;
+
+  /// Emit something like ".long Label+Offset" where the size in bytes of the
+  /// directive is specified by Size and Label specifies the label.  This
+  /// implicitly uses .set if it is available.
+  void EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
+                           unsigned Size, bool IsSectionRelative = false) const;
+
+  /// Emit something like ".long Label" where the size in bytes of the directive
+  /// is specified by Size and Label specifies the label.
+  void EmitLabelReference(const MCSymbol *Label, unsigned Size,
+                          bool IsSectionRelative = false) const {
+    EmitLabelPlusOffset(Label, 0, Size, IsSectionRelative);
+  }
+
+  //===------------------------------------------------------------------===//
+  // Dwarf Emission Helper Routines
+  //===------------------------------------------------------------------===//
+
+  /// Emit the specified signed leb128 value.
+  void EmitSLEB128(int64_t Value, const char *Desc = nullptr) const;
+
+  /// Emit the specified unsigned leb128 value.
+  void EmitULEB128(uint64_t Value, const char *Desc = nullptr,
+                   unsigned PadTo = 0) const;
+
+  /// Emit a .byte 42 directive for a DW_CFA_xxx value.
+  void EmitCFAByte(unsigned Val) const;
+
+  /// Emit a .byte 42 directive that corresponds to an encoding.  If verbose
+  /// assembly output is enabled, we output comments describing the encoding.
+  /// Desc is a string saying what the encoding is specifying (e.g. "LSDA").
+  void EmitEncodingByte(unsigned Val, const char *Desc = nullptr) const;
+
+  /// Return the size of the encoding in bytes.
+  unsigned GetSizeOfEncodedValue(unsigned Encoding) const;
+
+  /// Emit reference to a ttype global with a specified encoding.
+  void EmitTTypeReference(const GlobalValue *GV, unsigned Encoding) const;
+
+  /// Emit the 4-byte offset of Label from the start of its section.  This can
+  /// be done with a special directive if the target supports it (e.g. cygwin)
+  /// or by emitting it as an offset from a label at the start of the section.
+  ///
+  /// SectionLabel is a temporary label emitted at the start of the section
+  /// that Label lives in.
+  void EmitSectionOffset(const MCSymbol *Label,
+                         const MCSymbol *SectionLabel) const;
+
+  /// Get the value for DW_AT_APPLE_isa. Zero if no isa encoding specified.
+  virtual unsigned getISAEncoding() { return 0; }
+
+  /// \brief Emit a partial DWARF register operation.
+  /// \param MLoc             the register
+  /// \param PieceSize        size and
+  /// \param PieceOffset      offset of the piece in bits, if this is one
+  ///                         piece of an aggregate value.
+  ///
+  /// If size and offset is zero an operation for the entire
+  /// register is emitted: Some targets do not provide a DWARF
+  /// register number for every register.  If this is the case, this
+  /// function will attempt to emit a DWARF register by emitting a
+  /// piece of a super-register or by piecing together multiple
+  /// subregisters that alias the register.
+  void EmitDwarfRegOpPiece(ByteStreamer &BS, const MachineLocation &MLoc,
+                           unsigned PieceSize = 0,
+                           unsigned PieceOffset = 0) const;
+
+  /// Emit dwarf register operation.
+  /// \param Indirect   whether this is a register-indirect address
+  virtual void EmitDwarfRegOp(ByteStreamer &BS, const MachineLocation &MLoc,
+                              bool Indirect) const;
+
+  //===------------------------------------------------------------------===//
+  // Dwarf Lowering Routines
+  //===------------------------------------------------------------------===//
+
+  /// \brief Emit frame instruction to describe the layout of the frame.
+  void emitCFIInstruction(const MCCFIInstruction &Inst) const;
+
+  //===------------------------------------------------------------------===//
+  // Inline Asm Support
+  //===------------------------------------------------------------------===//
+public:
+  // These are hooks that targets can override to implement inline asm
+  // support.  These should probably be moved out of AsmPrinter someday.
+
+  /// Print information related to the specified machine instr that is
+  /// independent of the operand, and may be independent of the instr itself.
+  /// This can be useful for portably encoding the comment character or other
+  /// bits of target-specific knowledge into the asmstrings.  The syntax used is
+  /// ${:comment}.  Targets can override this to add support for their own
+  /// strange codes.
+  virtual void PrintSpecial(const MachineInstr *MI, raw_ostream &OS,
+                            const char *Code) const;
+
+  /// Print the specified operand of MI, an INLINEASM instruction, using the
+  /// specified assembler variant.  Targets should override this to format as
+  /// appropriate.  This method can return true if the operand is erroneous.
+  virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
+                               unsigned AsmVariant, const char *ExtraCode,
+                               raw_ostream &OS);
+
+  /// Print the specified operand of MI, an INLINEASM instruction, using the
+  /// specified assembler variant as an address. Targets should override this to
+  /// format as appropriate.  This method can return true if the operand is
+  /// erroneous.
+  virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
+                                     unsigned AsmVariant, const char *ExtraCode,
+                                     raw_ostream &OS);
+
+  /// Let the target do anything it needs to do after emitting inlineasm.
+  /// This callback can be used restore the original mode in case the
+  /// inlineasm contains directives to switch modes.
+  /// \p StartInfo - the original subtarget info before inline asm
+  /// \p EndInfo   - the final subtarget info after parsing the inline asm,
+  ///                or NULL if the value is unknown.
+  virtual void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
+                                const MCSubtargetInfo *EndInfo) const;
+
+private:
+  /// Private state for PrintSpecial()
+  // Assign a unique ID to this machine instruction.
+  mutable const MachineInstr *LastMI;
+  mutable unsigned LastFn;
+  mutable unsigned Counter;
+  mutable unsigned SetCounter;
+
+  /// Emit a blob of inline asm to the output streamer.
+  void
+  EmitInlineAsm(StringRef Str, const MDNode *LocMDNode = nullptr,
+                InlineAsm::AsmDialect AsmDialect = InlineAsm::AD_ATT) const;
+
+  /// This method formats and emits the specified machine instruction that is an
+  /// inline asm.
+  void EmitInlineAsm(const MachineInstr *MI) const;
+
+  //===------------------------------------------------------------------===//
+  // Internal Implementation Details
+  //===------------------------------------------------------------------===//
+
+  /// This emits visibility information about symbol, if this is suported by the
+  /// target.
+  void EmitVisibility(MCSymbol *Sym, unsigned Visibility,
+                      bool IsDefinition = true) const;
+
+  void EmitLinkage(const GlobalValue *GV, MCSymbol *GVSym) const;
+
+  void EmitJumpTableEntry(const MachineJumpTableInfo *MJTI,
+                          const MachineBasicBlock *MBB, unsigned uid) const;
+  void EmitLLVMUsedList(const ConstantArray *InitList);
+  /// Emit llvm.ident metadata in an '.ident' directive.
+  void EmitModuleIdents(Module &M);
+  void EmitXXStructorList(const Constant *List, bool isCtor);
+  GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy &C);
+};
 }
 
 #endif