1 //===- IA64RegisterInfo.h - IA64 Register Information Impl ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the IA64 implementation of the MRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef IA64REGISTERINFO_H
15 #define IA64REGISTERINFO_H
17 #include "llvm/Target/MRegisterInfo.h"
18 #include "IA64GenRegisterInfo.h.inc"
20 namespace llvm { class llvm::Type; }
24 class TargetInstrInfo;
26 struct IA64RegisterInfo : public IA64GenRegisterInfo {
27 const TargetInstrInfo &TII;
29 IA64RegisterInfo(const TargetInstrInfo &tii);
31 /// Code Generation virtual methods...
32 void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
33 unsigned DestReg, const MachineInstr *Orig) const;
35 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
37 const TargetRegisterClass* const* getCalleeSavedRegClasses(
38 const MachineFunction *MF = 0) const;
40 BitVector getReservedRegs(const MachineFunction &MF) const;
42 bool hasFP(const MachineFunction &MF) const;
44 void eliminateCallFramePseudoInstr(MachineFunction &MF,
45 MachineBasicBlock &MBB,
46 MachineBasicBlock::iterator MI) const;
48 void eliminateFrameIndex(MachineBasicBlock::iterator MI,
49 int SPAdj, RegScavenger *RS = NULL) const;
51 void emitPrologue(MachineFunction &MF) const;
52 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
54 // Debug information queries.
55 unsigned getRARegister() const;
56 unsigned getFrameRegister(MachineFunction &MF) const;
58 // Exception handling queries.
59 unsigned getEHExceptionRegister() const;
60 unsigned getEHHandlerRegister() const;
62 int getDwarfRegNum(unsigned RegNum, bool isEH) const;
65 } // End llvm namespace