llvm-project/llvm/lib/Target/AMDGPU/SIFrameLowering.h

68 lines
2.2 KiB
C++

//===--------------------- SIFrameLowering.h --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
#define LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
#include "AMDGPUFrameLowering.h"
namespace llvm {
class SIInstrInfo;
class SIMachineFunctionInfo;
class SIRegisterInfo;
class SISubtarget;
class SIFrameLowering final : public AMDGPUFrameLowering {
public:
SIFrameLowering(StackDirection D, unsigned StackAl, int LAO,
unsigned TransAl = 1) :
AMDGPUFrameLowering(D, StackAl, LAO, TransAl) {}
~SIFrameLowering() override = default;
void emitEntryFunctionPrologue(MachineFunction &MF,
MachineBasicBlock &MBB) const;
void emitPrologue(MachineFunction &MF,
MachineBasicBlock &MBB) const override;
void emitEpilogue(MachineFunction &MF,
MachineBasicBlock &MBB) const override;
int getFrameIndexReference(const MachineFunction &MF, int FI,
unsigned &FrameReg) const override;
void processFunctionBeforeFrameFinalized(
MachineFunction &MF,
RegScavenger *RS = nullptr) const override;
private:
void emitFlatScratchInit(const SISubtarget &ST,
MachineFunction &MF,
MachineBasicBlock &MBB) const;
unsigned getReservedPrivateSegmentBufferReg(
const SISubtarget &ST,
const SIInstrInfo *TII,
const SIRegisterInfo *TRI,
SIMachineFunctionInfo *MFI,
MachineFunction &MF) const;
std::pair<unsigned, unsigned> getReservedPrivateSegmentWaveByteOffsetReg(
const SISubtarget &ST,
const SIInstrInfo *TII,
const SIRegisterInfo *TRI,
SIMachineFunctionInfo *MFI,
MachineFunction &MF) const;
/// \brief Emits debugger prologue.
void emitDebuggerPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H