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   /// SRetReturnReg - Some subtargets require that sret lowering includes
37   /// returning the value of the returned struct in a register. This field
38   /// holds the virtual register into which the sret argument is passed.
39   unsigned SRetReturnReg;
40 
41 public:
MSP430MachineFunctionInfo()42   MSP430MachineFunctionInfo() : CalleeSavedFrameSize(0) {}
43 
MSP430MachineFunctionInfo(MachineFunction & MF)44   explicit MSP430MachineFunctionInfo(MachineFunction &MF)
45     : CalleeSavedFrameSize(0), ReturnAddrIndex(0), SRetReturnReg(0) {}
46 
getCalleeSavedFrameSize()47   unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
setCalleeSavedFrameSize(unsigned bytes)48   void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
49 
getSRetReturnReg()50   unsigned getSRetReturnReg() const { return SRetReturnReg; }
setSRetReturnReg(unsigned Reg)51   void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
52 
getRAIndex()53   int getRAIndex() const { return ReturnAddrIndex; }
setRAIndex(int Index)54   void setRAIndex(int Index) { ReturnAddrIndex = Index; }
55 
getVarArgsFrameIndex()56   int getVarArgsFrameIndex() const { return VarArgsFrameIndex;}
setVarArgsFrameIndex(int Index)57   void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
58 };
59 
60 } // End llvm namespace
61 
62 #endif
63