lib/Target/MSP430/MSP430RegisterInfo.h

   1 //===- MSP430RegisterInfo.h - MSP430 Register Information Impl --*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the MSP430 implementation of the MRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_TARGET_MSP430REGISTERINFO_H
  15 #define LLVM_TARGET_MSP430REGISTERINFO_H
  16
  17 #include "llvm/Target/TargetRegisterInfo.h"
  18 #include "MSP430GenRegisterInfo.h.inc"
  19
  20 namespace llvm {
  21
  22 class TargetInstrInfo;
  23 class MSP430TargetMachine;
  24
  25 struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
  26 private:
  27   MSP430TargetMachine &TM;
  28   const TargetInstrInfo &TII;
  29
  30   /// StackAlign - Default stack alignment.
  31   ///
  32   unsigned StackAlign;
  33 public:
  34   MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii);
  35
  36   /// Code Generation virtual methods...
  37   const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
  38
  39   BitVector getReservedRegs(const MachineFunction &MF) const;
  40   const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
  41
  42   bool hasFP(const MachineFunction &MF) const;
  43   bool hasReservedCallFrame(const MachineFunction &MF) const;
  44
  45   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  46                                      MachineBasicBlock &MBB,
  47                                      MachineBasicBlock::iterator I) const;
  48
  49   void eliminateFrameIndex(MachineBasicBlock::iterator II,
  50                            int SPAdj, RegScavenger *RS = NULL) const;
  51
  52   void emitPrologue(MachineFunction &MF) const;
  53   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  54
  55   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  56
  57   // Debug information queries.
  58   unsigned getRARegister() const;
  59   unsigned getFrameRegister(const MachineFunction &MF) const;
  60
  61   //! Get DWARF debugging register number
  62   int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  63 };
  64
  65 } // end namespace llvm
  66
  67 #endif // LLVM_TARGET_MSP430REGISTERINFO_H