1 //===- IA64RegisterInfo.h - IA64 Register Information Impl ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by Duraid Madina and is distributed under the
6 // University of Illinois Open Source 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 storeRegToStackSlot(MachineBasicBlock &MBB,
33 MachineBasicBlock::iterator MI,
34 unsigned SrcReg, int FrameIndex,
35 const TargetRegisterClass *RC) const;
37 void storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
38 SmallVector<MachineOperand,4> Addr,
39 const TargetRegisterClass *RC,
40 SmallVector<MachineInstr*, 4> &NewMIs) const;
42 void loadRegFromStackSlot(MachineBasicBlock &MBB,
43 MachineBasicBlock::iterator MI,
44 unsigned DestReg, int FrameIndex,
45 const TargetRegisterClass *RC) const;
47 void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
48 SmallVector<MachineOperand,4> Addr,
49 const TargetRegisterClass *RC,
50 SmallVector<MachineInstr*, 4> &NewMIs) const;
52 void copyRegToReg(MachineBasicBlock &MBB,
53 MachineBasicBlock::iterator MI,
54 unsigned DestReg, unsigned SrcReg,
55 const TargetRegisterClass *DestRC,
56 const TargetRegisterClass *SrcRC) const;
58 void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
59 unsigned DestReg, const MachineInstr *Orig) const;
61 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
63 const TargetRegisterClass* const* getCalleeSavedRegClasses(
64 const MachineFunction *MF = 0) const;
66 BitVector getReservedRegs(const MachineFunction &MF) const;
68 bool hasFP(const MachineFunction &MF) const;
70 void eliminateCallFramePseudoInstr(MachineFunction &MF,
71 MachineBasicBlock &MBB,
72 MachineBasicBlock::iterator MI) const;
74 void eliminateFrameIndex(MachineBasicBlock::iterator MI,
75 int SPAdj, RegScavenger *RS = NULL) const;
77 void emitPrologue(MachineFunction &MF) const;
78 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
80 // Debug information queries.
81 unsigned getRARegister() const;
82 unsigned getFrameRegister(MachineFunction &MF) const;
84 // Exception handling queries.
85 unsigned getEHExceptionRegister() const;
86 unsigned getEHHandlerRegister() const;
89 } // End llvm namespace