| //=- HexagonFrameLowering.h - Define frame lowering for Hexagon --*- C++ -*--=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef HEXAGON_FRAMEINFO_H |
| #define HEXAGON_FRAMEINFO_H |
| |
| #include "Hexagon.h" |
| #include "HexagonSubtarget.h" |
| #include "llvm/Target/TargetFrameLowering.h" |
| |
| namespace llvm { |
| |
| class HexagonFrameLowering : public TargetFrameLowering { |
| private: |
| const HexagonSubtarget &STI; |
| void determineFrameLayout(MachineFunction &MF) const; |
| |
| public: |
| explicit HexagonFrameLowering(const HexagonSubtarget &sti) |
| : TargetFrameLowering(StackGrowsDown, 8, 0), 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; |
| virtual bool |
| spillCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| const std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const; |
| virtual bool |
| restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| const std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const; |
| int getFrameIndexOffset(const MachineFunction &MF, int FI) const; |
| bool hasFP(const MachineFunction &MF) const; |
| bool hasTailCall(MachineBasicBlock &MBB) const; |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |