1 //===-- SystemZRegisterInfo.h - SystemZ Register Information ----*- 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 SystemZ implementation of the TargetRegisterInfo class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef SystemZREGISTERINFO_H 15 #define SystemZREGISTERINFO_H 16 17 #include "llvm/Target/TargetRegisterInfo.h" 18 19 #define GET_REGINFO_HEADER 20 #include "SystemZGenRegisterInfo.inc" 21 22 namespace llvm { 23 24 class SystemZSubtarget; 25 class SystemZInstrInfo; 26 class Type; 27 28 struct SystemZRegisterInfo : public SystemZGenRegisterInfo { 29 SystemZTargetMachine &TM; 30 const SystemZInstrInfo &TII; 31 32 SystemZRegisterInfo(SystemZTargetMachine &tm, const SystemZInstrInfo &tii); 33 34 /// Code Generation virtual methods... 35 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const; 36 37 BitVector getReservedRegs(const MachineFunction &MF) const; 38 39 const TargetRegisterClass* 40 getMatchingSuperRegClass(const TargetRegisterClass *A, 41 const TargetRegisterClass *B, unsigned Idx) const; 42 43 void eliminateCallFramePseudoInstr(MachineFunction &MF, 44 MachineBasicBlock &MBB, 45 MachineBasicBlock::iterator I) const; 46 47 void eliminateFrameIndex(MachineBasicBlock::iterator II, 48 int SPAdj, RegScavenger *RS = NULL) const; 49 50 // Debug information queries. 51 unsigned getFrameRegister(const MachineFunction &MF) const; 52 53 // Exception handling queries. 54 unsigned getEHExceptionRegister() const; 55 unsigned getEHHandlerRegister() const; 56 }; 57 58 } // end namespace llvm 59 60 #endif 61
