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//=- 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;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) 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
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