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//===-- HexagonMCCodeEmitter.h - Hexagon Target Descriptions ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Definition for classes that emit Hexagon machine code from MCInsts
///
//===----------------------------------------------------------------------===//
#ifndef HEXAGONMCCODEEMITTER_H
#define HEXAGONMCCODEEMITTER_H
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
class HexagonMCCodeEmitter : public MCCodeEmitter {
MCContext &MCT;
MCInstrInfo const &MCII;
std::unique_ptr<unsigned> Addend;
std::unique_ptr<bool> Extended;
std::unique_ptr<MCInst const *> CurrentBundle;
// helper routine for getMachineOpValue()
unsigned getExprOpValue(const MCInst &MI, const MCOperand &MO,
const MCExpr *ME, SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
public:
HexagonMCCodeEmitter(MCInstrInfo const &aMII, MCContext &aMCT);
// Return parse bits for instruction `MCI' inside bundle `MCB'
uint32_t parseBits(size_t Instruction, size_t Last, MCInst const &MCB,
MCInst const &MCI) const;
MCSubtargetInfo const &getSubtargetInfo() const;
void encodeInstruction(MCInst const &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
MCSubtargetInfo const &STI) const override;
void EncodeSingleInstruction(const MCInst &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI,
uint32_t Parse, size_t Index) const;
// \brief TableGen'erated function for getting the
// binary encoding for an instruction.
uint64_t getBinaryCodeForInstr(MCInst const &MI,
SmallVectorImpl<MCFixup> &Fixups,
MCSubtargetInfo const &STI) const;
/// \brief Return binary encoding of operand.
unsigned getMachineOpValue(MCInst const &MI, MCOperand const &MO,
SmallVectorImpl<MCFixup> &Fixups,
MCSubtargetInfo const &STI) const;
private:
HexagonMCCodeEmitter(HexagonMCCodeEmitter const &) = delete;
void operator=(HexagonMCCodeEmitter const &) = delete;
}; // class HexagonMCCodeEmitter
} // namespace llvm
#endif /* HEXAGONMCCODEEMITTER_H */
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