llvm/lib/Target/M68k/M68kMCInstLower.h

   1 //===-- M68kMCInstLower.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 contains code to lower M68k MachineInstrs to their
  11 /// corresponding MCInst records.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_LIB_TARGET_M68K_M68KMCINSTLOWER_H
  16 #define LLVM_LIB_TARGET_M68K_M68KMCINSTLOWER_H
  17
  18 #include "llvm/CodeGen/MachineOperand.h"
  19 #include "llvm/MC/MCAsmInfo.h"
  20 #include "llvm/Target/TargetMachine.h"
  21
  22 namespace llvm {
  23 class MCContext;
  24 class MCInst;
  25 class MCOperand;
  26 class MachineInstr;
  27 class MachineFunction;
  28 class M68kAsmPrinter;
  29
  30 /// This class is used to lower an MachineInstr into an MCInst.
  31 class M68kMCInstLower {
  32   typedef MachineOperand::MachineOperandType MachineOperandType;
  33   MCContext &Ctx;
  34   MachineFunction &MF;
  35   const TargetMachine &TM;
  36   const MCAsmInfo &MAI;
  37   M68kAsmPrinter &AsmPrinter;
  38
  39 public:
  40   M68kMCInstLower(MachineFunction &MF, M68kAsmPrinter &AP);
  41
  42   /// Lower an MO_GlobalAddress or MO_ExternalSymbol operand to an MCSymbol.
  43   MCSymbol *GetSymbolFromOperand(const MachineOperand &MO) const;
  44
  45   MCOperand LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const;
  46
  47   std::optional<MCOperand> LowerOperand(const MachineInstr *MI,
  48                                         const MachineOperand &MO) const;
  49
  50   void Lower(const MachineInstr *MI, MCInst &OutMI) const;
  51 };
  52 } // namespace llvm
  53
  54 #endif // LLVM_LIB_TARGET_M68K_M68KMCINSTLOWER_H