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      1 //=== MSP430MachineFunctionInfo.h - MSP430 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 MSP430-specific per-machine-function information.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
     15 #define LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
     16 
     17 #include "llvm/CodeGen/MachineFunction.h"
     18 
     19 namespace llvm {
     20 
     21 /// MSP430MachineFunctionInfo - This class is derived from MachineFunction and
     22 /// contains private MSP430 target-specific information for each MachineFunction.
     23 class MSP430MachineFunctionInfo : public MachineFunctionInfo {
     24   virtual void anchor();
     25 
     26   /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
     27   /// stack frame in bytes.
     28   unsigned CalleeSavedFrameSize;
     29 
     30   /// ReturnAddrIndex - FrameIndex for return slot.
     31   int ReturnAddrIndex;
     32 
     33   /// VarArgsFrameIndex - FrameIndex for start of varargs area.
     34   int VarArgsFrameIndex;
     35 
     36 public:
     37   MSP430MachineFunctionInfo() : CalleeSavedFrameSize(0) {}
     38 
     39   explicit MSP430MachineFunctionInfo(MachineFunction &MF)
     40     : CalleeSavedFrameSize(0), ReturnAddrIndex(0) {}
     41 
     42   unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
     43   void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
     44 
     45   int getRAIndex() const { return ReturnAddrIndex; }
     46   void setRAIndex(int Index) { ReturnAddrIndex = Index; }
     47 
     48   int getVarArgsFrameIndex() const { return VarArgsFrameIndex;}
     49   void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
     50 };
     51 
     52 } // End llvm namespace
     53 
     54 #endif
     55