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3be6c5786f
Summary: This adds the majority of the AVR backend. Reviewers: hfinkel, dsanders, vkalintiris, arsenm Subscribers: dylanmckay Differential Revision: http://reviews.llvm.org/D17906 llvm-svn: 268722
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
//===-- AVRFrameLowering.h - Define frame lowering for AVR ------*- 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_AVR_FRAME_LOWERING_H
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#define LLVM_AVR_FRAME_LOWERING_H
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#include "AVRConfig.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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/// Utilities for creating function call frames.
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class AVRFrameLowering : public TargetFrameLowering {
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public:
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explicit AVRFrameLowering();
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public:
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void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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bool hasFP(const MachineFunction &MF) const override;
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bool 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 override;
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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 override;
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bool hasReservedCallFrame(const MachineFunction &MF) const override;
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bool canSimplifyCallFramePseudos(const MachineFunction &MF) const override;
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void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
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RegScavenger *RS = nullptr) const override;
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void
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eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI) const override;
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};
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} // end namespace llvm
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#endif // LLVM_AVR_FRAME_LOWERING_H
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