LLVM  3.7.0
AsmPrinterHandler.h
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1 //===-- lib/CodeGen/AsmPrinter/AsmPrinterHandler.h -------------*- 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 contains a generic interface for AsmPrinter handlers,
11 // like debug and EH info emitters.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H
16 #define LLVM_LIB_CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H
17 
18 #include "llvm/Support/DataTypes.h"
19 
20 namespace llvm {
21 
22 class MachineFunction;
23 class MachineInstr;
24 class MCSymbol;
25 
26 /// \brief Collects and handles AsmPrinter objects required to build debug
27 /// or EH information.
29 public:
30  virtual ~AsmPrinterHandler();
31 
32  /// \brief For symbols that have a size designated (e.g. common symbols),
33  /// this tracks that size.
34  virtual void setSymbolSize(const MCSymbol *Sym, uint64_t Size) = 0;
35 
36  /// \brief Emit all sections that should come after the content.
37  virtual void endModule() = 0;
38 
39  /// \brief Gather pre-function debug information.
40  /// Every beginFunction(MF) call should be followed by an endFunction(MF)
41  /// call.
42  virtual void beginFunction(const MachineFunction *MF) = 0;
43 
44  // \brief Emit any of function marker (like .cfi_endproc). This is called
45  // before endFunction and cannot switch sections.
46  virtual void markFunctionEnd();
47 
48  /// \brief Gather post-function debug information.
49  /// Please note that some AsmPrinter implementations may not call
50  /// beginFunction at all.
51  virtual void endFunction(const MachineFunction *MF) = 0;
52 
53  /// \brief Process beginning of an instruction.
54  virtual void beginInstruction(const MachineInstr *MI) = 0;
55 
56  /// \brief Process end of an instruction.
57  virtual void endInstruction() = 0;
58 };
59 } // End of namespace llvm
60 
61 #endif
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:39
virtual void setSymbolSize(const MCSymbol *Sym, uint64_t Size)=0
For symbols that have a size designated (e.g.
Collects and handles AsmPrinter objects required to build debug or EH information.
virtual void beginInstruction(const MachineInstr *MI)=0
Process beginning of an instruction.
virtual void endInstruction()=0
Process end of an instruction.
virtual void markFunctionEnd()
virtual void beginFunction(const MachineFunction *MF)=0
Gather pre-function debug information.
virtual void endModule()=0
Emit all sections that should come after the content.
Representation of each machine instruction.
Definition: MachineInstr.h:51
virtual ~AsmPrinterHandler()
Pin vtable to this file.
virtual void endFunction(const MachineFunction *MF)=0
Gather post-function debug information.