forked from OSchip/llvm-project
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//=- HexagonFrameLowering.h - Define frame lowering for Hexagon --*- C++ -*--=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef HEXAGON_FRAMEINFO_H
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#define HEXAGON_FRAMEINFO_H
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#include "Hexagon.h"
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#include "HexagonSubtarget.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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class HexagonFrameLowering : public TargetFrameLowering {
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private:
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const HexagonSubtarget &STI;
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void determineFrameLayout(MachineFunction &MF) const;
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public:
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explicit HexagonFrameLowering(const HexagonSubtarget &sti)
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: TargetFrameLowering(StackGrowsDown, 8, 0), STI(sti) {
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}
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/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
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/// the function.
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void emitPrologue(MachineFunction &MF) const;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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virtual bool
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spillCalleeSavedRegisters(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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const std::vector<CalleeSavedInfo> &CSI,
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const TargetRegisterInfo *TRI) const;
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void eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const;
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virtual bool
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restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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const std::vector<CalleeSavedInfo> &CSI,
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const TargetRegisterInfo *TRI) const;
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int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
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bool hasFP(const MachineFunction &MF) const;
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bool hasTailCall(MachineBasicBlock &MBB) const;
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};
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} // End llvm namespace
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#endif
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