1 //===- AlphaRegisterInfo.h - Alpha Register Information Impl ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the Alpha implementation of the MRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef ALPHAREGISTERINFO_H
15 #define ALPHAREGISTERINFO_H
17 #include "llvm/Target/MRegisterInfo.h"
18 #include "AlphaGenRegisterInfo.h.inc"
24 struct AlphaRegisterInfo : public AlphaGenRegisterInfo {
25 const TargetInstrInfo &TII;
27 AlphaRegisterInfo(const TargetInstrInfo &tii);
29 /// Code Generation virtual methods...
30 void storeRegToStackSlot(MachineBasicBlock &MBB,
31 MachineBasicBlock::iterator MBBI,
32 unsigned SrcReg, int FrameIndex,
33 const TargetRegisterClass *RC) const;
35 void loadRegFromStackSlot(MachineBasicBlock &MBB,
36 MachineBasicBlock::iterator MBBI,
37 unsigned DestReg, int FrameIndex,
38 const TargetRegisterClass *RC) const;
40 MachineInstr* foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
41 int FrameIndex) const;
43 void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
44 unsigned DestReg, unsigned SrcReg,
45 const TargetRegisterClass *RC) const;
47 const unsigned *getCalleeSaveRegs() const;
49 const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
51 void eliminateCallFramePseudoInstr(MachineFunction &MF,
52 MachineBasicBlock &MBB,
53 MachineBasicBlock::iterator I) const;
55 void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
57 //void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
59 void emitPrologue(MachineFunction &MF) const;
60 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
62 // Debug information queries.
63 unsigned getRARegister() const;
64 unsigned getFrameRegister(MachineFunction &MF) const;
66 static std::string getPrettyName(unsigned reg);
69 } // end namespace llvm