1 //===- MipsMCInstLower.h - Lower MachineInstr to MCInst --------*- C++ -*--===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H 11 #define LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H 12 13 #include "MCTargetDesc/MipsMCExpr.h" 14 #include "llvm/CodeGen/MachineOperand.h" 15 #include "llvm/Support/Compiler.h" 16 17 namespace llvm { 18 19 class MachineBasicBlock; 20 class MachineInstr; 21 class MCContext; 22 class MCInst; 23 class MCOperand; 24 class MipsAsmPrinter; 25 26 /// MipsMCInstLower - This class is used to lower an MachineInstr into an 27 /// MCInst. 28 class LLVM_LIBRARY_VISIBILITY MipsMCInstLower { 29 using MachineOperandType = MachineOperand::MachineOperandType; 30 31 MCContext *Ctx; 32 MipsAsmPrinter &AsmPrinter; 33 34 public: 35 MipsMCInstLower(MipsAsmPrinter &asmprinter); 36 37 void Initialize(MCContext *C); 38 void Lower(const MachineInstr *MI, MCInst &OutMI) const; 39 MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const; 40 41 private: 42 MCOperand LowerSymbolOperand(const MachineOperand &MO, 43 MachineOperandType MOTy, unsigned Offset) const; 44 MCOperand createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2, 45 MipsMCExpr::MipsExprKind Kind) const; 46 void lowerLongBranchLUi(const MachineInstr *MI, MCInst &OutMI) const; 47 void lowerLongBranchADDiu(const MachineInstr *MI, MCInst &OutMI, 48 int Opcode) const; 49 bool lowerLongBranch(const MachineInstr *MI, MCInst &OutMI) const; 50 }; 51 52 } // end namespace llvm 53 54 #endif // LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H 55
