CSKYAsmBackend.h

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//===-- CSKYAsmBackend.h - CSKY Assembler Backend -------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
#define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
 
#include "MCTargetDesc/CSKYFixupKinds.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCTargetOptions.h"
 
namespace llvm {
 
class CSKYAsmBackend : public MCAsmBackend {
 
public:
  CSKYAsmBackend(const MCSubtargetInfo &STI, const MCTargetOptions &OP)
      : MCAsmBackend(support::little) {}
 
  unsigned int getNumFixupKinds() const override {
    return CSKY::NumTargetFixupKinds;
  }
 
  void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
                  const MCValue &Target, MutableArrayRef<char> Data,
                  uint64_t Value, bool IsResolved,
                  const MCSubtargetInfo *STI) const override;
 
  const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
 
  bool fixupNeedsRelaxation(const MCFixup &Fixup, uint64_t Value,
                            const MCRelaxableFragment *DF,
                            const MCAsmLayout &Layout) const override;
 
  void relaxInstruction(MCInst &Inst,
                        const MCSubtargetInfo &STI) const override;
 
  bool mayNeedRelaxation(const MCInst &Inst,
                         const MCSubtargetInfo &STI) const override;
 
  bool fixupNeedsRelaxationAdvanced(const MCFixup &Fixup, bool Resolved,
                                    uint64_t Value,
                                    const MCRelaxableFragment *DF,
                                    const MCAsmLayout &Layout,
                                    const bool WasForced) const override;
 
  bool writeNopData(raw_ostream &OS, uint64_t Count,
                    const MCSubtargetInfo *STI) const override;
 
  bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup,
                             const MCValue &Target) override;
 
  std::unique_ptr<MCObjectTargetWriter>
  createObjectTargetWriter() const override;
};
} // namespace llvm
 
#endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H