1 //==- MSP430FrameLowering.h - Define frame lowering for MSP430 --*- C++ -*--==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_MSP430_MSP430FRAMELOWERING_H
15 #define LLVM_LIB_TARGET_MSP430_MSP430FRAMELOWERING_H
18 #include "llvm/Target/TargetFrameLowering.h"
21 class MSP430FrameLowering : public TargetFrameLowering {
25 explicit MSP430FrameLowering()
26 : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 2, -2, 2) {}
28 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
30 void emitPrologue(MachineFunction &MF) const override;
31 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
33 void eliminateCallFramePseudoInstr(MachineFunction &MF,
34 MachineBasicBlock &MBB,
35 MachineBasicBlock::iterator I) const override;
37 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
38 MachineBasicBlock::iterator MI,
39 const std::vector<CalleeSavedInfo> &CSI,
40 const TargetRegisterInfo *TRI) const override;
41 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
42 MachineBasicBlock::iterator MI,
43 const std::vector<CalleeSavedInfo> &CSI,
44 const TargetRegisterInfo *TRI) const override;
46 bool hasFP(const MachineFunction &MF) const override;
47 bool hasReservedCallFrame(const MachineFunction &MF) const override;
48 void processFunctionBeforeFrameFinalized(MachineFunction &MF,
49 RegScavenger *RS = nullptr) const override;
52 } // End llvm namespace