1//===- NVPTXRegisterInfo.h - NVPTX 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 NVPTX implementation of the TargetRegisterInfo class. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef NVPTXREGISTERINFO_H 15#define NVPTXREGISTERINFO_H 16 17#include "ManagedStringPool.h" 18#include "llvm/Target/TargetRegisterInfo.h" 19#include <sstream> 20 21#define GET_REGINFO_HEADER 22#include "NVPTXGenRegisterInfo.inc" 23 24namespace llvm { 25 26// Forward Declarations. 27class TargetInstrInfo; 28class NVPTXSubtarget; 29 30class NVPTXRegisterInfo : public NVPTXGenRegisterInfo { 31private: 32 bool Is64Bit; 33 // Hold Strings that can be free'd all together with NVPTXRegisterInfo 34 ManagedStringPool ManagedStrPool; 35 36public: 37 NVPTXRegisterInfo(const NVPTXSubtarget &st); 38 39 //------------------------------------------------------ 40 // Pure virtual functions from TargetRegisterInfo 41 //------------------------------------------------------ 42 43 // NVPTX callee saved registers 44 const MCPhysReg * 45 getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override; 46 47 BitVector getReservedRegs(const MachineFunction &MF) const override; 48 49 void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj, 50 unsigned FIOperandNum, 51 RegScavenger *RS = nullptr) const override; 52 53 unsigned getFrameRegister(const MachineFunction &MF) const override; 54 55 ManagedStringPool *getStrPool() const { 56 return const_cast<ManagedStringPool *>(&ManagedStrPool); 57 } 58 59 const char *getName(unsigned RegNo) const { 60 std::stringstream O; 61 O << "reg" << RegNo; 62 return getStrPool()->getManagedString(O.str().c_str())->c_str(); 63 } 64 65}; 66 67std::string getNVPTXRegClassName(const TargetRegisterClass *RC); 68std::string getNVPTXRegClassStr(const TargetRegisterClass *RC); 69 70} // end namespace llvm 71 72#endif 73