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Viewing changes to lib/Target/BPF/BPFFrameLowering.h

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2015-07-15 17:51:08 UTC
  • Revision ID: package-import@ubuntu.com-20150715175108-l8mynwovkx4zx697
Tags: upstream-3.7~+rc2
Import upstream version 3.7~+rc2

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lib/Target/BPF/BPFFrameLowering.h
 
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//===-- BPFFrameLowering.h - Define frame lowering for BPF -----*- 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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//
 
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// This class implements BPF-specific bits of TargetFrameLowering class.
 
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//
 
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//===----------------------------------------------------------------------===//
 
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#ifndef LLVM_LIB_TARGET_BPF_BPFFRAMELOWERING_H
 
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#define LLVM_LIB_TARGET_BPF_BPFFRAMELOWERING_H
 
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#include "llvm/Target/TargetFrameLowering.h"
 
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namespace llvm {
 
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class BPFSubtarget;
 
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class BPFFrameLowering : public TargetFrameLowering {
 
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public:
 
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  explicit BPFFrameLowering(const BPFSubtarget &sti)
 
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      : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 8, 0) {}
 
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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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  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
 
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                            RegScavenger *RS) 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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    MBB.erase(MI);
 
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  }
 
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};
 
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}
 
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#endif