lib/Target/Alpha/AlphaMachineFunctionInfo.h

   1 //====- AlphaMachineFuctionInfo.h - Alpha 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 Alpha-specific per-machine-function information.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef ALPHAMACHINEFUNCTIONINFO_H
  15 #define ALPHAMACHINEFUNCTIONINFO_H
  16
  17 #include "llvm/CodeGen/MachineFunction.h"
  18
  19 namespace llvm {
  20
  21 /// AlphaMachineFunctionInfo - This class is derived from MachineFunction
  22 /// private Alpha target-specific information for each MachineFunction.
  23 class AlphaMachineFunctionInfo : public MachineFunctionInfo {
  24   /// GlobalBaseReg - keeps track of the virtual register initialized for
  25   /// use as the global base register. This is used for PIC in some PIC
  26   /// relocation models.
  27   unsigned GlobalBaseReg;
  28
  29   /// GlobalRetAddr = keeps track of the virtual register initialized for
  30   /// the return address value.
  31   unsigned GlobalRetAddr;
  32
  33 public:
  34   AlphaMachineFunctionInfo() : GlobalBaseReg(0), GlobalRetAddr(0) {}
  35
  36   explicit AlphaMachineFunctionInfo(MachineFunction &MF) : GlobalBaseReg(0),
  37                                                            GlobalRetAddr(0) {}
  38
  39   unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
  40   void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
  41
  42   unsigned getGlobalRetAddr() const { return GlobalRetAddr; }
  43   void setGlobalRetAddr(unsigned Reg) { GlobalRetAddr = Reg; }
  44 };
  45
  46 } // End llvm namespace
  47
  48 #endif