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 CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H__ 16 #define 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. 28 class AsmPrinterHandler { 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 Gather post-function debug information. 45 /// Please note that some AsmPrinter implementations may not call 46 /// beginFunction at all. 47 virtual void endFunction(const MachineFunction *MF) = 0; 48 49 /// \brief Process beginning of an instruction. 50 virtual void beginInstruction(const MachineInstr *MI) = 0; 51 52 /// \brief Process end of an instruction. 53 virtual void endInstruction() = 0; 54 }; 55 } // End of namespace llvm 56 57 #endif 58
