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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 | ||
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10 | #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H |
11 | #define LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H | |
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12 | |
13 | #include "Hexagon.h" | |
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14 | #include "llvm/Target/TargetFrameLowering.h" |
15 | ||
16 | namespace llvm { | |
17 | ||
18 | class HexagonFrameLowering : public TargetFrameLowering { | |
19 | private: | |
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20 | void determineFrameLayout(MachineFunction &MF) const; |
21 | ||
22 | public: | |
1a4d82fc | 23 | explicit HexagonFrameLowering() : TargetFrameLowering(StackGrowsDown, 8, 0) {} |
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24 | |
25 | /// emitProlog/emitEpilog - These methods insert prolog and epilog code into | |
26 | /// the function. | |
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27 | void emitPrologue(MachineFunction &MF) const override; |
28 | void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; | |
29 | bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, | |
30 | MachineBasicBlock::iterator MI, | |
31 | const std::vector<CalleeSavedInfo> &CSI, | |
32 | const TargetRegisterInfo *TRI) const override; | |
33 | ||
34 | void | |
35 | eliminateCallFramePseudoInstr(MachineFunction &MF, | |
36 | MachineBasicBlock &MBB, | |
37 | MachineBasicBlock::iterator I) const override; | |
38 | ||
39 | bool | |
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40 | restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
41 | MachineBasicBlock::iterator MI, | |
42 | const std::vector<CalleeSavedInfo> &CSI, | |
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43 | const TargetRegisterInfo *TRI) const override; |
44 | int getFrameIndexOffset(const MachineFunction &MF, int FI) const override; | |
45 | bool hasFP(const MachineFunction &MF) const override; | |
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46 | bool hasTailCall(MachineBasicBlock &MBB) const; |
47 | }; | |
48 | ||
49 | } // End llvm namespace | |
50 | ||
51 | #endif |