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110 lines
3.4 KiB
C++
110 lines
3.4 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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#ifndef LLVM_MC_MCINSTPRINTER_H
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#define LLVM_MC_MCINSTPRINTER_H
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#include "llvm/Support/Format.h"
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#include <cstdint>
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namespace llvm {
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template <typename T> class ArrayRef;
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class MCAsmInfo;
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class MCInst;
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class MCInstrInfo;
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class MCRegisterInfo;
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class MCSubtargetInfo;
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class raw_ostream;
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class StringRef;
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/// Convert `Bytes' to a hex string and output to `OS'
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void dumpBytes(ArrayRef<uint8_t> Bytes, raw_ostream &OS);
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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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} // end namespace HexStyle
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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 = nullptr;
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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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/// True if we are printing marked up assembly.
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bool UseMarkup = false;
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/// True if we are printing immediates as hex.
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bool PrintImmHex = false;
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/// Which style to use for printing hexadecimal values.
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HexStyle::Style PrintHexStyle = HexStyle::C;
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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) : MAI(mai), MII(mii), MRI(mri) {}
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virtual ~MCInstPrinter();
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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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/// \brief Print the specified MCInst to the specified raw_ostream.
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virtual void printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot,
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const MCSubtargetInfo &STI) = 0;
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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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/// \brief Print the assembler register name.
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virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
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bool getUseMarkup() const { return UseMarkup; }
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void setUseMarkup(bool Value) { UseMarkup = Value; }
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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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bool getPrintImmHex() const { return PrintImmHex; }
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void setPrintImmHex(bool Value) { PrintImmHex = Value; }
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HexStyle::Style getPrintHexStyle() const { return PrintHexStyle; }
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void setPrintHexStyle(HexStyle::Style Value) { PrintHexStyle = Value; }
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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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/// 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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} // end namespace llvm
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#endif // LLVM_MC_MCINSTPRINTER_H
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