lib/Target/Nios2/Nios2RegisterInfo.h

   1 //===-- Nios2RegisterInfo.h - Nios2 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 Nios2 implementation of the TargetRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_NIOS2_NIOS2REGISTERINFO_H
  15 #define LLVM_LIB_TARGET_NIOS2_NIOS2REGISTERINFO_H
  16
  17 #include "Nios2.h"
  18 #include "llvm/CodeGen/TargetRegisterInfo.h"
  19
  20 #define GET_REGINFO_HEADER
  21 #include "Nios2GenRegisterInfo.inc"
  22
  23 namespace llvm {
  24 class Nios2Subtarget;
  25 class TargetInstrInfo;
  26 class Type;
  27
  28 class Nios2RegisterInfo : public Nios2GenRegisterInfo {
  29 protected:
  30   const Nios2Subtarget &Subtarget;
  31
  32 public:
  33   Nios2RegisterInfo(const Nios2Subtarget &Subtarget);
  34
  35   const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
  36
  37   BitVector getReservedRegs(const MachineFunction &MF) const override;
  38
  39   /// Stack Frame Processing Methods
  40   void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
  41                            unsigned FIOperandNum,
  42                            RegScavenger *RS = nullptr) const override;
  43
  44   /// Debug information queries.
  45   unsigned getFrameRegister(const MachineFunction &MF) const override;
  46
  47   /// Return GPR register class.
  48   const TargetRegisterClass *intRegClass(unsigned Size) const;
  49 };
  50
  51 } // end namespace llvm
  52 #endif