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//===- MCInstPrinter.h - MCInst to target assembly syntax -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCINSTPRINTER_H
#define LLVM_MC_MCINSTPRINTER_H
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Format.h"
namespace llvm {
class MCInst;
class raw_ostream;
class MCAsmInfo;
class MCInstrInfo;
class MCRegisterInfo;
class StringRef;
namespace HexStyle {
enum Style {
C, ///< 0xff
Asm ///< 0ffh
};
}
/// MCInstPrinter - This is an instance of a target assembly language printer
/// that converts an MCInst to valid target assembly syntax.
class MCInstPrinter {
protected:
/// CommentStream - a stream that comments can be emitted to if desired.
/// Each comment must end with a newline. This will be null if verbose
/// assembly emission is disable.
raw_ostream *CommentStream;
const MCAsmInfo &MAI;
const MCInstrInfo &MII;
const MCRegisterInfo &MRI;
/// The current set of available features.
uint64_t AvailableFeatures;
/// True if we are printing marked up assembly.
bool UseMarkup;
/// True if we are printing immediates as hex.
bool PrintImmHex;
/// Which style to use for printing hexadecimal values.
HexStyle::Style PrintHexStyle;
/// Utility function for printing annotations.
void printAnnotation(raw_ostream &OS, StringRef Annot);
public:
MCInstPrinter(const MCAsmInfo &mai, const MCInstrInfo &mii,
const MCRegisterInfo &mri)
: CommentStream(nullptr), MAI(mai), MII(mii), MRI(mri),
AvailableFeatures(0), UseMarkup(0), PrintImmHex(0),
PrintHexStyle(HexStyle::C) {}
virtual ~MCInstPrinter();
/// setCommentStream - Specify a stream to emit comments to.
void setCommentStream(raw_ostream &OS) { CommentStream = &OS; }
/// printInst - Print the specified MCInst to the specified raw_ostream.
///
virtual void printInst(const MCInst *MI, raw_ostream &OS,
StringRef Annot) = 0;
/// getOpcodeName - Return the name of the specified opcode enum (e.g.
/// "MOV32ri") or empty if we can't resolve it.
StringRef getOpcodeName(unsigned Opcode) const;
/// printRegName - Print the assembler register name.
virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
uint64_t getAvailableFeatures() const { return AvailableFeatures; }
void setAvailableFeatures(uint64_t Value) { AvailableFeatures = Value; }
bool getUseMarkup() const { return UseMarkup; }
void setUseMarkup(bool Value) { UseMarkup = Value; }
/// Utility functions to make adding mark ups simpler.
StringRef markup(StringRef s) const;
StringRef markup(StringRef a, StringRef b) const;
bool getPrintImmHex() const { return PrintImmHex; }
void setPrintImmHex(bool Value) { PrintImmHex = Value; }
HexStyle::Style getPrintHexStyleHex() const { return PrintHexStyle; }
void setPrintImmHex(HexStyle::Style Value) { PrintHexStyle = Value; }
/// Utility function to print immediates in decimal or hex.
format_object1<int64_t> formatImm(const int64_t Value) const { return PrintImmHex ? formatHex(Value) : formatDec(Value); }
/// Utility functions to print decimal/hexadecimal values.
format_object1<int64_t> formatDec(const int64_t Value) const;
format_object1<int64_t> formatHex(const int64_t Value) const;
format_object1<uint64_t> formatHex(const uint64_t Value) const;
};
} // namespace llvm
#endif
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