1 //===-- lib/CodeGen/AsmPrinter/AsmPrinterHandler.h -------------*- C++ -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains a generic interface for AsmPrinter handlers,
11 // like debug and EH info emitters.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H
16 #define LLVM_LIB_CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H
18 #include "llvm/Support/DataTypes.h"
22 class MachineFunction;
26 /// \brief Collects and handles AsmPrinter objects required to build debug
27 /// or EH information.
28 class AsmPrinterHandler {
30 virtual ~AsmPrinterHandler();
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;
36 /// \brief Emit all sections that should come after the content.
37 virtual void endModule() = 0;
39 /// \brief Gather pre-function debug information.
40 /// Every beginFunction(MF) call should be followed by an endFunction(MF)
42 virtual void beginFunction(const MachineFunction *MF) = 0;
44 // \brief Emit any of function marker (like .cfi_endproc). This is called
45 // before endFunction and cannot switch sections.
46 virtual void markFunctionEnd();
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;
53 /// \brief Process beginning of an instruction.
54 virtual void beginInstruction(const MachineInstr *MI) = 0;
56 /// \brief Process end of an instruction.
57 virtual void endInstruction() = 0;
59 } // End of namespace llvm