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 MSP430_FRAMEINFO_H
15 #define MSP430_FRAMEINFO_H
18 #include "MSP430Subtarget.h"
19 #include "llvm/Target/TargetFrameLowering.h"
22 class MSP430Subtarget;
24 class MSP430FrameLowering : public TargetFrameLowering {
26 const MSP430Subtarget &STI;
29 explicit MSP430FrameLowering(const MSP430Subtarget &sti)
30 : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 2, -2), STI(sti) {
33 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
35 void emitPrologue(MachineFunction &MF) const;
36 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
38 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
39 MachineBasicBlock::iterator MI,
40 const std::vector<CalleeSavedInfo> &CSI,
41 const TargetRegisterInfo *TRI) const;
42 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
43 MachineBasicBlock::iterator MI,
44 const std::vector<CalleeSavedInfo> &CSI,
45 const TargetRegisterInfo *TRI) const;
47 bool hasFP(const MachineFunction &MF) const;
48 bool hasReservedCallFrame(const MachineFunction &MF) const;
51 } // End llvm namespace