lib/Target/SystemZ/SystemZMachineFunctionInfo.h

   1 //==- SystemZMachineFuctionInfo.h - SystemZ machine function info -*- 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 declares SystemZ-specific per-machine-function information.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef SYSTEMZMACHINEFUNCTIONINFO_H
  15 #define SYSTEMZMACHINEFUNCTIONINFO_H
  16
  17 #include "llvm/CodeGen/MachineFunction.h"
  18
  19 namespace llvm {
  20
  21 /// SystemZMachineFunctionInfo - This class is derived from MachineFunction and
  22 /// contains private SystemZ target-specific information for each MachineFunction.
  23 class SystemZMachineFunctionInfo : public MachineFunctionInfo {
  24   /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
  25   /// stack frame in bytes.
  26   unsigned CalleeSavedFrameSize;
  27
  28   /// LowReg - Low register of range of callee-saved registers to store.
  29   unsigned LowReg;
  30
  31   /// HighReg - High register of range of callee-saved registers to store.
  32   unsigned HighReg;
  33 public:
  34   SystemZMachineFunctionInfo() : CalleeSavedFrameSize(0) {}
  35
  36   SystemZMachineFunctionInfo(MachineFunction &MF) : CalleeSavedFrameSize(0) {}
  37
  38   unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
  39   void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
  40
  41   unsigned getLowReg() const { return LowReg; }
  42   void setLowReg(unsigned Reg) { LowReg = Reg; }
  43
  44   unsigned getHighReg() const { return HighReg; }
  45   void setHighReg(unsigned Reg) { HighReg = Reg; }
  46 };
  47
  48 } // End llvm namespace
  49
  50 #endif