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SampleFrameLowering.h
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SampleFrameLowering.h
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//===-- SampleFrameLowering.h - Define frame lowering for Sample ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//
//===----------------------------------------------------------------------===//
#ifndef SAMPLE_FRAMELOWERING_H
#define SAMPLE_FRAMELOWERING_H
#include "Sample.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
namespace llvm {
class SampleSubtarget;
class SampleFrameLowering : public TargetFrameLowering {
protected:
const SampleSubtarget &STI;
public:
explicit SampleFrameLowering(const SampleSubtarget &sti)
: TargetFrameLowering(StackGrowsDown, Align(8), 0), STI(sti) {
}
/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
/// the function.
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
MachineBasicBlock::iterator
eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const override;
bool hasFP(const MachineFunction &MF) const override;
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
RegScavenger *RS = nullptr) const override;
};
} // End llvm namespace
#endif