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/MipsMCExpr.h" 13 #include "llvm/CodeGen/MachineOperand.h" 14 #include "llvm/Support/Compiler.h" 15 16 namespace llvm { 17 18 class MachineBasicBlock; 19 class MachineInstr; 20 class MCContext; 21 class MCInst; 22 class MCOperand; 23 class MipsAsmPrinter; 24 25 /// MipsMCInstLower - This class is used to lower an MachineInstr into an 26 /// MCInst. 27 class LLVM_LIBRARY_VISIBILITY MipsMCInstLower { 28 using MachineOperandType = MachineOperand::MachineOperandType; 29 30 MCContext *Ctx; 31 MipsAsmPrinter &AsmPrinter; 32 33 public: 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 40 private: 41 MCOperand LowerSymbolOperand(const MachineOperand &MO, 42 MachineOperandType MOTy, int64_t Offset) const; 43 MCOperand createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2, 44 MipsMCExpr::MipsExprKind 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