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ab4fb8ba2f
Partially implement callee-side for arguments and return values. byval doesn't work properly, and most likely sret or other on-stack return values most as well. llvm-svn: 303308
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
//===--------------------- SIFrameLowering.h --------------------*- 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 LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
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#define LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
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#include "AMDGPUFrameLowering.h"
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namespace llvm {
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class SIInstrInfo;
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class SIMachineFunctionInfo;
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class SIRegisterInfo;
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class SISubtarget;
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class SIFrameLowering final : public AMDGPUFrameLowering {
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public:
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SIFrameLowering(StackDirection D, unsigned StackAl, int LAO,
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unsigned TransAl = 1) :
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AMDGPUFrameLowering(D, StackAl, LAO, TransAl) {}
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~SIFrameLowering() override = default;
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void emitEntryFunctionPrologue(MachineFunction &MF,
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MachineBasicBlock &MBB) const;
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void emitPrologue(MachineFunction &MF,
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MachineBasicBlock &MBB) const override;
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void emitEpilogue(MachineFunction &MF,
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MachineBasicBlock &MBB) const override;
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int getFrameIndexReference(const MachineFunction &MF, int FI,
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unsigned &FrameReg) const override;
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void processFunctionBeforeFrameFinalized(
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MachineFunction &MF,
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RegScavenger *RS = nullptr) const override;
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private:
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void emitFlatScratchInit(const SISubtarget &ST,
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MachineFunction &MF,
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MachineBasicBlock &MBB) const;
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unsigned getReservedPrivateSegmentBufferReg(
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const SISubtarget &ST,
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const SIInstrInfo *TII,
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const SIRegisterInfo *TRI,
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SIMachineFunctionInfo *MFI,
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MachineFunction &MF) const;
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std::pair<unsigned, unsigned> getReservedPrivateSegmentWaveByteOffsetReg(
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const SISubtarget &ST,
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const SIInstrInfo *TII,
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const SIRegisterInfo *TRI,
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SIMachineFunctionInfo *MFI,
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MachineFunction &MF) const;
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/// \brief Emits debugger prologue.
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void emitDebuggerPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
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