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
  19 #define GET_REGINFO_HEADER
  20 #include "MSP430GenRegisterInfo.inc"
  21
  22 namespace llvm {
  23
  24 class TargetInstrInfo;
  25 class MSP430TargetMachine;
  26
  27 struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
  28 private:
  29   MSP430TargetMachine &TM;
  30   const TargetInstrInfo &TII;
  31
  32   /// StackAlign - Default stack alignment.
  33   ///
  34   unsigned StackAlign;
  35 public:
  36   MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii);
  37
  38   /// Code Generation virtual methods...
  39   const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
  40
  41   BitVector getReservedRegs(const MachineFunction &MF) const;
  42   const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
  43
  44   const TargetRegisterClass *
  45   getMatchingSuperRegClass(const TargetRegisterClass *A,
  46                            const TargetRegisterClass *B, unsigned Idx) const {
  47     // No sub-classes makes this really easy.
  48     return A;
  49   }
  50
  51   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  52                                      MachineBasicBlock &MBB,
  53                                      MachineBasicBlock::iterator I) const;
  54
  55   void eliminateFrameIndex(MachineBasicBlock::iterator II,
  56                            int SPAdj, RegScavenger *RS = NULL) const;
  57
  58   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  59
  60   // Debug information queries.
  61   unsigned getRARegister() const;
  62   unsigned getFrameRegister(const MachineFunction &MF) const;
  63
  64   //! Get DWARF debugging register number
  65   int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  66   int getLLVMRegNum(unsigned RegNum, bool isEH) const;
  67 };
  68
  69 } // end namespace llvm
  70
  71 #endif // LLVM_TARGET_MSP430REGISTERINFO_H