xref: /freebsd-src/contrib/llvm-project/llvm/lib/Target/CSKY/CSKYFrameLowering.h (revision 349cc55c9796c4596a5b9904cd3281af295f878f)

//===-- CSKYFrameLowering.h - Define frame lowering for CSKY -*- C++ -*--===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This class implements CSKY-specific bits of TargetFrameLowering class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_CSKY_CSKYFRAMELOWERING_H
#define LLVM_LIB_TARGET_CSKY_CSKYFRAMELOWERING_H

#include "llvm/CodeGen/TargetFrameLowering.h"

namespace llvm {
class CSKYSubtarget;

class CSKYFrameLowering : public TargetFrameLowering {
  const CSKYSubtarget &STI;

public:
  explicit CSKYFrameLowering(const CSKYSubtarget &STI)
      : TargetFrameLowering(StackGrowsDown,
                            /*StackAlignment=*/Align(4),
                            /*LocalAreaOffset=*/0),
        STI(STI) {}

  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;

  bool hasFP(const MachineFunction &MF) const override;
  bool hasBP(const MachineFunction &MF) const;
};
} // namespace llvm
#endif