| //===-- Mips16InstrInfo.h - Mips16 Instruction Information ------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the Mips16 implementation of the TargetInstrInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MIPS16INSTRUCTIONINFO_H |
| #define MIPS16INSTRUCTIONINFO_H |
| |
| #include "Mips16RegisterInfo.h" |
| #include "MipsInstrInfo.h" |
| |
| namespace llvm { |
| |
| class Mips16InstrInfo : public MipsInstrInfo { |
| const Mips16RegisterInfo RI; |
| |
| public: |
| explicit Mips16InstrInfo(MipsTargetMachine &TM); |
| |
| virtual const MipsRegisterInfo &getRegisterInfo() const; |
| |
| /// isLoadFromStackSlot - If the specified machine instruction is a direct |
| /// load from a stack slot, return the virtual or physical register number of |
| /// the destination along with the FrameIndex of the loaded stack slot. If |
| /// not, return 0. This predicate must return 0 if the instruction has |
| /// any side effects other than loading from the stack slot. |
| virtual unsigned isLoadFromStackSlot(const MachineInstr *MI, |
| int &FrameIndex) const; |
| |
| /// isStoreToStackSlot - If the specified machine instruction is a direct |
| /// store to a stack slot, return the virtual or physical register number of |
| /// the source reg along with the FrameIndex of the loaded stack slot. If |
| /// not, return 0. This predicate must return 0 if the instruction has |
| /// any side effects other than storing to the stack slot. |
| virtual unsigned isStoreToStackSlot(const MachineInstr *MI, |
| int &FrameIndex) const; |
| |
| virtual void copyPhysReg(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, DebugLoc DL, |
| unsigned DestReg, unsigned SrcReg, |
| bool KillSrc) const; |
| |
| virtual void storeRegToStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI, |
| unsigned SrcReg, bool isKill, int FrameIndex, |
| const TargetRegisterClass *RC, |
| const TargetRegisterInfo *TRI) const; |
| |
| virtual void loadRegFromStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI, |
| unsigned DestReg, int FrameIndex, |
| const TargetRegisterClass *RC, |
| const TargetRegisterInfo *TRI) const; |
| |
| virtual bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const; |
| |
| virtual unsigned GetOppositeBranchOpc(unsigned Opc) const; |
| |
| /// Adjust SP by Amount bytes. |
| void adjustStackPtr(unsigned SP, int64_t Amount, MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I) const; |
| |
| private: |
| virtual unsigned GetAnalyzableBrOpc(unsigned Opc) const; |
| |
| void ExpandRetRA16(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, |
| unsigned Opc) const; |
| }; |
| |
| } |
| |
| #endif |