1//===-- AVRMachineFuctionInfo.h - AVR 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 AVR-specific per-machine-function information.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_AVR_MACHINE_FUNCTION_INFO_H
15#define LLVM_AVR_MACHINE_FUNCTION_INFO_H
16
17#include "llvm/CodeGen/MachineFunction.h"
18
19namespace llvm {
20
21/// Contains AVR-specific information for each MachineFunction.
22class AVRMachineFunctionInfo : public MachineFunctionInfo {
23  /// Indicates if a register has been spilled by the register
24  /// allocator.
25  bool HasSpills;
26
27  /// Indicates if there are any fixed size allocas present.
28  /// Note that if there are only variable sized allocas this is set to false.
29  bool HasAllocas;
30
31  /// Indicates if arguments passed using the stack are being
32  /// used inside the function.
33  bool HasStackArgs;
34
35  /// Size of the callee-saved register portion of the
36  /// stack frame in bytes.
37  unsigned CalleeSavedFrameSize;
38
39  /// FrameIndex for start of varargs area.
40  int VarArgsFrameIndex;
41
42public:
43  AVRMachineFunctionInfo()
44      : HasSpills(false), HasAllocas(false), HasStackArgs(false),
45        CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {}
46
47  explicit AVRMachineFunctionInfo(MachineFunction &MF)
48      : HasSpills(false), HasAllocas(false), HasStackArgs(false),
49        CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {}
50
51  bool getHasSpills() const { return HasSpills; }
52  void setHasSpills(bool B) { HasSpills = B; }
53
54  bool getHasAllocas() const { return HasAllocas; }
55  void setHasAllocas(bool B) { HasAllocas = B; }
56
57  bool getHasStackArgs() const { return HasStackArgs; }
58  void setHasStackArgs(bool B) { HasStackArgs = B; }
59
60  unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
61  void setCalleeSavedFrameSize(unsigned Bytes) { CalleeSavedFrameSize = Bytes; }
62
63  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
64  void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
65};
66
67} // end llvm namespace
68
69#endif // LLVM_AVR_MACHINE_FUNCTION_INFO_H
70