LLVM  10.0.0svn
AVRMachineFunctionInfo.h
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1 //===-- AVRMachineFuctionInfo.h - AVR machine function info -----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file declares AVR-specific per-machine-function information.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_AVR_MACHINE_FUNCTION_INFO_H
14 #define LLVM_AVR_MACHINE_FUNCTION_INFO_H
15 
17 
18 namespace llvm {
19 
20 /// Contains AVR-specific information for each MachineFunction.
22  /// Indicates if a register has been spilled by the register
23  /// allocator.
24  bool HasSpills;
25 
26  /// Indicates if there are any fixed size allocas present.
27  /// Note that if there are only variable sized allocas this is set to false.
28  bool HasAllocas;
29 
30  /// Indicates if arguments passed using the stack are being
31  /// used inside the function.
32  bool HasStackArgs;
33 
34  /// Size of the callee-saved register portion of the
35  /// stack frame in bytes.
36  unsigned CalleeSavedFrameSize;
37 
38  /// FrameIndex for start of varargs area.
39  int VarArgsFrameIndex;
40 
41 public:
43  : HasSpills(false), HasAllocas(false), HasStackArgs(false),
44  CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {}
45 
47  : HasSpills(false), HasAllocas(false), HasStackArgs(false),
48  CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {}
49 
50  bool getHasSpills() const { return HasSpills; }
51  void setHasSpills(bool B) { HasSpills = B; }
52 
53  bool getHasAllocas() const { return HasAllocas; }
54  void setHasAllocas(bool B) { HasAllocas = B; }
55 
56  bool getHasStackArgs() const { return HasStackArgs; }
57  void setHasStackArgs(bool B) { HasStackArgs = B; }
58 
59  unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
60  void setCalleeSavedFrameSize(unsigned Bytes) { CalleeSavedFrameSize = Bytes; }
61 
62  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
63  void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
64 };
65 
66 } // end llvm namespace
67 
68 #endif // LLVM_AVR_MACHINE_FUNCTION_INFO_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
Contains AVR-specific information for each MachineFunction.
void setCalleeSavedFrameSize(unsigned Bytes)
AVRMachineFunctionInfo(MachineFunction &MF)