| //===-- AsmAnnotationWriter.h - Itf for annotation .ll files - --*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Clients of the assembly writer can use this interface to add their own |
| // special-purpose annotations to LLVM assembly language printouts. Note that |
| // the assembly parser won't be able to parse these, in general, so |
| // implementations are advised to print stuff as LLVM comments. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H |
| #define LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H |
| |
| #include <iosfwd> |
| |
| namespace llvm { |
| |
| class Function; |
| class BasicBlock; |
| class Instruction; |
| |
| struct AssemblyAnnotationWriter { |
| |
| // emitFunctionAnnot - This may be implemented to emit a string right before |
| // the start of a function. |
| virtual void emitFunctionAnnot(const Function *F, std::ostream &OS) {} |
| |
| // emitBasicBlockAnnot - This may be implemented to emit a string right after |
| // the basic block label, but before the first instruction in the block. |
| virtual void emitBasicBlockAnnot(const BasicBlock *BB, std::ostream &OS) {} |
| |
| // emitInstructionAnnot - This may be implemented to emit a string right |
| // before an instruction is emitted. |
| virtual void emitInstructionAnnot(const Instruction *I, std::ostream &OS) {} |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |