//===-- WebAssemblyMCInstLower.h - Lower MachineInstr to MCInst -*- 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

//

//===----------------------------------------------------------------------===//

///

/// \file

/// This file declares the class to lower WebAssembly MachineInstrs to

/// their corresponding MCInst records.

///

//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H

#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H

#include "llvm/BinaryFormat/Wasm.h"

#include "llvm/MC/MCInst.h"

#include "llvm/Support/Compiler.h"

namespace llvm {

class WebAssemblyAsmPrinter;

class MCContext;

class MCSymbol;

class MachineInstr;

class MachineOperand;

/// This class is used to lower an MachineInstr into an MCInst.

class LLVM_LIBRARY_VISIBILITY WebAssemblyMCInstLower {

  MCContext &Ctx;

  WebAssemblyAsmPrinter &Printer;

  MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;

  MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;

  MCOperand lowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const;

  MCOperand lowerTypeIndexOperand(SmallVectorImpl<wasm::ValType> &&,

                                  SmallVectorImpl<wasm::ValType> &&) const;

public:

  WebAssemblyMCInstLower(MCContext &ctx, WebAssemblyAsmPrinter &printer)

      : Ctx(ctx), Printer(printer) {}

  void lower(const MachineInstr *MI, MCInst &OutMI) const;

};

} // end namespace llvm

#endif