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      1 //===-- BPFRegisterInfo.h - BPF Register Information Impl -------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file contains the BPF implementation of the TargetRegisterInfo class.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_LIB_TARGET_BPF_BPFREGISTERINFO_H
     15 #define LLVM_LIB_TARGET_BPF_BPFREGISTERINFO_H
     16 
     17 #include "llvm/CodeGen/TargetRegisterInfo.h"
     18 
     19 #define GET_REGINFO_HEADER
     20 #include "BPFGenRegisterInfo.inc"
     21 
     22 namespace llvm {
     23 
     24 struct BPFRegisterInfo : public BPFGenRegisterInfo {
     25 
     26   BPFRegisterInfo();
     27 
     28   const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
     29 
     30   BitVector getReservedRegs(const MachineFunction &MF) const override;
     31 
     32   bool enableMultipleCopyHints() const override { return true; }
     33 
     34   void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
     35                            unsigned FIOperandNum,
     36                            RegScavenger *RS = nullptr) const override;
     37 
     38   unsigned getFrameRegister(const MachineFunction &MF) const override;
     39 };
     40 }
     41 
     42 #endif
     43