| Tony Linthicum | b4b5415 | 2011-12-12 21:14:40 +0000 | [diff] [blame^] | 1 | //=- HexagonFrameLowering.h - Define frame lowering for Hexagon --*- 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 HEXAGON_FRAMEINFO_H |
| 11 | #define HEXAGON_FRAMEINFO_H |
| 12 | |
| 13 | #include "Hexagon.h" |
| 14 | #include "HexagonSubtarget.h" |
| 15 | #include "llvm/Target/TargetFrameLowering.h" |
| 16 | |
| 17 | namespace llvm { |
| 18 | |
| 19 | class HexagonFrameLowering : public TargetFrameLowering { |
| 20 | private: |
| 21 | const HexagonSubtarget &STI; |
| 22 | void determineFrameLayout(MachineFunction &MF) const; |
| 23 | |
| 24 | public: |
| 25 | explicit HexagonFrameLowering(const HexagonSubtarget &sti) |
| 26 | : TargetFrameLowering(StackGrowsDown, 8, 0), STI(sti) { |
| 27 | } |
| 28 | |
| 29 | /// emitProlog/emitEpilog - These methods insert prolog and epilog code into |
| 30 | /// the function. |
| 31 | void emitPrologue(MachineFunction &MF) const; |
| 32 | void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; |
| 33 | virtual bool |
| 34 | spillCalleeSavedRegisters(MachineBasicBlock &MBB, |
| 35 | MachineBasicBlock::iterator MI, |
| 36 | const std::vector<CalleeSavedInfo> &CSI, |
| 37 | const TargetRegisterInfo *TRI) const; |
| 38 | virtual bool |
| 39 | restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
| 40 | MachineBasicBlock::iterator MI, |
| 41 | const std::vector<CalleeSavedInfo> &CSI, |
| 42 | const TargetRegisterInfo *TRI) const; |
| 43 | int getFrameIndexOffset(const MachineFunction &MF, int FI) const; |
| 44 | bool hasFP(const MachineFunction &MF) const; |
| 45 | bool hasTailCall(MachineBasicBlock &MBB) const; |
| 46 | }; |
| 47 | |
| 48 | } // End llvm namespace |
| 49 | |
| 50 | #endif |