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			105 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			105 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===- MCInstPrinter.h - MCInst to target assembly syntax -------*- C++ -*-===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #ifndef LLVM_MC_MCINSTPRINTER_H
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| #define LLVM_MC_MCINSTPRINTER_H
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| 
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| #include "llvm/Support/DataTypes.h"
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| #include "llvm/Support/Format.h"
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| 
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| namespace llvm {
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| class MCInst;
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| class raw_ostream;
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| class MCAsmInfo;
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| class MCInstrInfo;
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| class MCRegisterInfo;
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| class MCSubtargetInfo;
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| class StringRef;
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| 
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| namespace HexStyle {
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|     enum Style {
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|         C,          ///< 0xff
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|         Asm         ///< 0ffh
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|     };
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| }
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| 
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| /// \brief This is an instance of a target assembly language printer that
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| /// converts an MCInst to valid target assembly syntax.
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| class MCInstPrinter {
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| protected:
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|   /// \brief A stream that comments can be emitted to if desired.  Each comment
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|   /// must end with a newline.  This will be null if verbose assembly emission
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|   /// is disable.
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|   raw_ostream *CommentStream;
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|   const MCAsmInfo &MAI;
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|   const MCInstrInfo &MII;
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|   const MCRegisterInfo &MRI;
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| 
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|   /// True if we are printing marked up assembly.
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|   bool UseMarkup;
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| 
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|   /// True if we are printing immediates as hex.
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|   bool PrintImmHex;
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| 
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|   /// Which style to use for printing hexadecimal values.
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|   HexStyle::Style PrintHexStyle;
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| 
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|   /// Utility function for printing annotations.
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|   void printAnnotation(raw_ostream &OS, StringRef Annot);
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| public:
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|   MCInstPrinter(const MCAsmInfo &mai, const MCInstrInfo &mii,
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|                 const MCRegisterInfo &mri)
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|     : CommentStream(nullptr), MAI(mai), MII(mii), MRI(mri),
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|       UseMarkup(0), PrintImmHex(0),
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|       PrintHexStyle(HexStyle::C) {}
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| 
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|   virtual ~MCInstPrinter();
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| 
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|   /// \brief Specify a stream to emit comments to.
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|   void setCommentStream(raw_ostream &OS) { CommentStream = &OS; }
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| 
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|   /// \brief Print the specified MCInst to the specified raw_ostream.
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|   virtual void printInst(const MCInst *MI, raw_ostream &OS,
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|                          StringRef Annot, const MCSubtargetInfo &STI) = 0;
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| 
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|   /// \brief Return the name of the specified opcode enum (e.g. "MOV32ri") or
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|   /// empty if we can't resolve it.
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|   StringRef getOpcodeName(unsigned Opcode) const;
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| 
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|   /// \brief Print the assembler register name.
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|   virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
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| 
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|   bool getUseMarkup() const { return UseMarkup; }
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|   void setUseMarkup(bool Value) { UseMarkup = Value; }
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| 
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|   /// Utility functions to make adding mark ups simpler.
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|   StringRef markup(StringRef s) const;
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|   StringRef markup(StringRef a, StringRef b) const;
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| 
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|   bool getPrintImmHex() const { return PrintImmHex; }
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|   void setPrintImmHex(bool Value) { PrintImmHex = Value; }
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| 
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|   HexStyle::Style getPrintHexStyleHex() const { return PrintHexStyle; }
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|   void setPrintImmHex(HexStyle::Style Value) { PrintHexStyle = Value; }
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| 
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|   /// Utility function to print immediates in decimal or hex.
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|   format_object<int64_t> formatImm(int64_t Value) const {
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|     return PrintImmHex ? formatHex(Value) : formatDec(Value);
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|   }
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| 
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|   /// Utility functions to print decimal/hexadecimal values.
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|   format_object<int64_t> formatDec(int64_t Value) const;
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|   format_object<int64_t> formatHex(int64_t Value) const;
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|   format_object<uint64_t> formatHex(uint64_t Value) const;
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| };
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| 
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| } // namespace llvm
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| 
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| #endif
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