lib/Target/ARM/ARMRegisterInfo.h

   1 //===- ARMRegisterInfo.h - ARM Register Information Impl --------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by the "Instituto Nokia de Tecnologia" and
   6 // is distributed under the University of Illinois Open Source
   7 // License. See LICENSE.TXT for details.
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file contains the ARM implementation of the MRegisterInfo class.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef ARMREGISTERINFO_H
  16 #define ARMREGISTERINFO_H
  17
  18 #include "llvm/Target/MRegisterInfo.h"
  19 #include "ARMGenRegisterInfo.h.inc"
  20
  21 namespace llvm {
  22
  23 class Type;
  24 class TargetInstrInfo;
  25
  26 struct ARMRegisterInfo : public ARMGenRegisterInfo {
  27   const TargetInstrInfo &TII;
  28
  29   ARMRegisterInfo(const TargetInstrInfo &tii);
  30
  31   /// Code Generation virtual methods...
  32   void storeRegToStackSlot(MachineBasicBlock &MBB,
  33                            MachineBasicBlock::iterator MBBI,
  34                            unsigned SrcReg, int FrameIndex,
  35                            const TargetRegisterClass *RC) const;
  36
  37   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  38                             MachineBasicBlock::iterator MBBI,
  39                             unsigned DestReg, int FrameIndex,
  40                             const TargetRegisterClass *RC) const;
  41
  42   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
  43                     unsigned DestReg, unsigned SrcReg,
  44                     const TargetRegisterClass *RC) const;
  45
  46   virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
  47                                           unsigned OpNum,
  48                                           int FrameIndex) const;
  49
  50   const unsigned *getCalleeSavedRegs() const;
  51
  52   const TargetRegisterClass* const* getCalleeSavedRegClasses() const;
  53
  54   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  55                                      MachineBasicBlock &MBB,
  56                                      MachineBasicBlock::iterator I) const;
  57
  58   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
  59
  60   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  61
  62   void emitPrologue(MachineFunction &MF) const;
  63   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  64
  65   // Debug information queries.
  66   unsigned getRARegister() const;
  67   unsigned getFrameRegister(MachineFunction &MF) const;
  68 };
  69
  70 } // end namespace llvm
  71
  72 #endif