MipsMachineFunction.h revision 4215a59a76d2b2dcbc1d2447792f8efb4a0087fd 
1//===-- MipsMachineFunctionInfo.h - Private data used for Mips ----*- C++ -*-=//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by Bruno Cardoso Lopes and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file declares the Mips specific subclass of MachineFunctionInfo.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef MIPS_MACHINE_FUNCTION_INFO_H
15#define MIPS_MACHINE_FUNCTION_INFO_H
16
17#include "llvm/CodeGen/MachineFunction.h"
18
19namespace llvm {
20
21/// MipsFunctionInfo - This class is derived from MachineFunction private
22/// Mips target-specific information for each MachineFunction.
23class MipsFunctionInfo : public MachineFunctionInfo {
24
25private:
26  /// Holds for each function where on the stack
27  /// the Frame Pointer must be saved
28  int FPStackOffset;
29
30  /// Holds for each function where on the stack
31  /// the Return Address must be saved
32  int RAStackOffset;
33
34public:
35  MipsFunctionInfo(MachineFunction& MF)
36  : FPStackOffset(0), RAStackOffset(0)
37  {}
38
39  int getFPStackOffset() const { return FPStackOffset; }
40  void setFPStackOffset(int Off) { FPStackOffset = Off; }
41
42  int getRAStackOffset() const { return RAStackOffset; }
43  void setRAStackOffset(int Off) { RAStackOffset = Off; }
44
45  int getTopSavedRegOffset() const {
46    return (RAStackOffset > FPStackOffset) ?
47           (RAStackOffset) : (FPStackOffset);
48  }
49};
50
51} // end of namespace llvm
52
53
54#endif
55