lib/Target/Nios2/Nios2MachineFunction.h

   1 //===-- Nios2MachineFunctionInfo.h - Private data used for Nios2 --*- 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 the Nios2 specific subclass of MachineFunctionInfo.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_NIOS2_NIOS2MACHINEFUNCTION_H
  15 #define LLVM_LIB_TARGET_NIOS2_NIOS2MACHINEFUNCTION_H
  16
  17 #include "llvm/CodeGen/MachineFunction.h"
  18
  19 namespace llvm {
  20
  21 /// Nios2FunctionInfo - This class is derived from MachineFunction private
  22 /// Nios2 target-specific information for each MachineFunction.
  23 class Nios2FunctionInfo : public MachineFunctionInfo {
  24   virtual void anchor();
  25
  26 private:
  27   unsigned GlobalBaseReg;
  28
  29   /// VarArgsFrameOffset - Frame offset to start of varargs area.
  30   int VarArgsFrameOffset;
  31
  32   /// SRetReturnReg - Holds the virtual register into which the sret
  33   /// argument is passed.
  34   unsigned SRetReturnReg;
  35
  36   /// IsLeafProc - True if the function is a leaf procedure.
  37   bool IsLeafProc;
  38
  39 public:
  40   Nios2FunctionInfo()
  41       : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
  42         IsLeafProc(false) {}
  43   explicit Nios2FunctionInfo(MachineFunction &MF)
  44       : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
  45         IsLeafProc(false) {}
  46
  47   unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
  48   void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
  49
  50   int getVarArgsFrameOffset() const { return VarArgsFrameOffset; }
  51   void setVarArgsFrameOffset(int Offset) { VarArgsFrameOffset = Offset; }
  52
  53   unsigned getSRetReturnReg() const { return SRetReturnReg; }
  54   void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
  55
  56   void setLeafProc(bool rhs) { IsLeafProc = rhs; }
  57   bool isLeafProc() const { return IsLeafProc; }
  58 };
  59
  60 } // end of namespace llvm
  61
  62 #endif // NIOS2_MACHINE_FUNCTION_INFO_H