| //==- MSP430FrameLowering.h - Define frame lowering for MSP430 --*- C++ -*--==// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MSP430_FRAMEINFO_H |
| #define MSP430_FRAMEINFO_H |
| |
| #include "MSP430.h" |
| #include "MSP430Subtarget.h" |
| #include "llvm/Target/TargetFrameLowering.h" |
| |
| namespace llvm { |
| class MSP430Subtarget; |
| |
| class MSP430FrameLowering : public TargetFrameLowering { |
| protected: |
| const MSP430Subtarget &STI; |
| |
| public: |
| explicit MSP430FrameLowering(const MSP430Subtarget &sti) |
| : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 2, -2, 2), |
| STI(sti) {} |
| |
| /// emitProlog/emitEpilog - These methods insert prolog and epilog code into |
| /// the function. |
| void emitPrologue(MachineFunction &MF) const; |
| void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; |
| |
| void eliminateCallFramePseudoInstr(MachineFunction &MF, |
| MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I) const; |
| |
| bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| const std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const; |
| bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| const std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const; |
| |
| bool hasFP(const MachineFunction &MF) const; |
| bool hasReservedCallFrame(const MachineFunction &MF) const; |
| void processFunctionBeforeFrameFinalized(MachineFunction &MF, |
| RegScavenger *RS = NULL) const; |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |
