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 53