1//===- MipsMCInstLower.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#ifndef LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
10#define LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
11
12#include "MCTargetDesc/MipsMCAsmInfo.h"
13#include "llvm/CodeGen/MachineOperand.h"
14#include "llvm/Support/Compiler.h"
15
16namespace llvm {
17
18class MachineBasicBlock;
19class MachineInstr;
20class MCContext;
21class MCInst;
22class MCOperand;
23class MipsAsmPrinter;
24
25/// MipsMCInstLower - This class is used to lower an MachineInstr into an
26/// MCInst.
27class LLVM_LIBRARY_VISIBILITY MipsMCInstLower {
28 using MachineOperandType = MachineOperand::MachineOperandType;
29
30 MCContext *Ctx;
31 MipsAsmPrinter &AsmPrinter;
32
33public:
34 MipsMCInstLower(MipsAsmPrinter &asmprinter);
35
36 void Initialize(MCContext *C);
37 void Lower(const MachineInstr *MI, MCInst &OutMI) const;
38 MCOperand LowerOperand(const MachineOperand &MO, int64_t offset = 0) const;
39
40private:
41 MCOperand LowerSymbolOperand(const MachineOperand &MO,
42 MachineOperandType MOTy, int64_t Offset) const;
43 MCOperand createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2,
44 Mips::Specifier Kind) const;
45 void lowerLongBranchLUi(const MachineInstr *MI, MCInst &OutMI) const;
46 void lowerLongBranchADDiu(const MachineInstr *MI, MCInst &OutMI,
47 int Opcode) const;
48 bool lowerLongBranch(const MachineInstr *MI, MCInst &OutMI) const;
49};
50
51} // end namespace llvm
52
53#endif // LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
54