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 20 21 #define GET_REGINFO_HEADER 22 #include "NVPTXGenRegisterInfo.inc" 23 #include "llvm/Target/TargetRegisterInfo.h" 24 #include <sstream> 25 26 namespace llvm { 27 28 // Forward Declarations. 29 class TargetInstrInfo; 30 class NVPTXSubtarget; 31 32 class NVPTXRegisterInfo : public NVPTXGenRegisterInfo { 33 private: 34 bool Is64Bit; 35 // Hold Strings that can be free'd all together with NVPTXRegisterInfo 36 ManagedStringPool ManagedStrPool; 37 38 public: 39 NVPTXRegisterInfo(const TargetInstrInfo &tii, 40 const NVPTXSubtarget &st); 41 42 43 //------------------------------------------------------ 44 // Pure virtual functions from TargetRegisterInfo 45 //------------------------------------------------------ 46 47 // NVPTX callee saved registers 48 virtual const uint16_t* 49 getCalleeSavedRegs(const MachineFunction *MF = 0) const; 50 51 // NVPTX callee saved register classes 52 virtual const TargetRegisterClass* const * 53 getCalleeSavedRegClasses(const MachineFunction *MF) const; 54 55 virtual BitVector getReservedRegs(const MachineFunction &MF) const; 56 57 virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI, 58 int SPAdj, 59 RegScavenger *RS=NULL) const; 60 61 void eliminateCallFramePseudoInstr(MachineFunction &MF, 62 MachineBasicBlock &MBB, 63 MachineBasicBlock::iterator I) const; 64 65 virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const; 66 virtual unsigned getFrameRegister(const MachineFunction &MF) const; 67 virtual unsigned getRARegister() const; 68 69 ManagedStringPool *getStrPool() const { 70 return const_cast<ManagedStringPool *>(&ManagedStrPool); 71 } 72 73 const char *getName(unsigned RegNo) const { 74 std::stringstream O; 75 O << "reg" << RegNo; 76 return getStrPool()->getManagedString(O.str().c_str())->c_str(); 77 } 78 79 }; 80 81 82 std::string getNVPTXRegClassName (const TargetRegisterClass *RC); 83 std::string getNVPTXRegClassStr (const TargetRegisterClass *RC); 84 bool isNVPTXVectorRegClass (const TargetRegisterClass *RC); 85 std::string getNVPTXElemClassName (const TargetRegisterClass *RC); 86 int getNVPTXVectorSize (const TargetRegisterClass *RC); 87 const TargetRegisterClass *getNVPTXElemClass(const TargetRegisterClass *RC); 88 89 } // end namespace llvm 90 91 92 #endif 93
