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
  25 struct ARMRegisterInfo : public ARMGenRegisterInfo {
  26
  27   ARMRegisterInfo();
  28
  29   /// Code Generation virtual methods...
  30   void storeRegToStackSlot(MachineBasicBlock &MBB,
  31                            MachineBasicBlock::iterator MBBI,
  32                            unsigned SrcReg, int FrameIndex,
  33                            const TargetRegisterClass *RC) const;
  34
  35   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  36                             MachineBasicBlock::iterator MBBI,
  37                             unsigned DestReg, int FrameIndex,
  38                             const TargetRegisterClass *RC) const;
  39
  40   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
  41                     unsigned DestReg, unsigned SrcReg,
  42                     const TargetRegisterClass *RC) const;
  43
  44   virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
  45                                           unsigned OpNum,
  46                                           int FrameIndex) const;
  47
  48   const unsigned *getCalleeSaveRegs() const;
  49
  50   const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
  51
  52   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  53                                      MachineBasicBlock &MBB,
  54                                      MachineBasicBlock::iterator I) const;
  55
  56   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
  57
  58   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  59
  60   void emitPrologue(MachineFunction &MF) const;
  61   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  62
  63   // Debug information queries.
  64   unsigned getRARegister() const;
  65   unsigned getFrameRegister(MachineFunction &MF) const;
  66 };
  67
  68 } // end namespace llvm
  69
  70 #endif