1//===-- WebAssemblyMCInstLower.h - Lower MachineInstr to MCInst -*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// This file declares the class to lower WebAssembly MachineInstrs to
11/// their corresponding MCInst records.
12///
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H
16#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H
17
18#include "llvm/BinaryFormat/Wasm.h"
19#include "llvm/MC/MCInst.h"
20#include "llvm/Support/Compiler.h"
21
22namespace llvm {
23class WebAssemblyAsmPrinter;
24class MCContext;
25class MCSymbol;
26class MachineInstr;
27class MachineOperand;
28
29/// This class is used to lower an MachineInstr into an MCInst.
30class LLVM_LIBRARY_VISIBILITY WebAssemblyMCInstLower {
31 MCContext &Ctx;
32 WebAssemblyAsmPrinter &Printer;
33
34 MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;
35 MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
36 MCOperand lowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const;
37 MCOperand lowerTypeIndexOperand(SmallVectorImpl<wasm::ValType> &&,
38 SmallVectorImpl<wasm::ValType> &&) const;
39
40public:
41 WebAssemblyMCInstLower(MCContext &ctx, WebAssemblyAsmPrinter &printer)
42 : Ctx(ctx), Printer(printer) {}
43 void lower(const MachineInstr *MI, MCInst &OutMI) const;
44};
45} // end namespace llvm
46
47#endif
48