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//===-- AssemblyAnnotationWriter.h - Annotation .ll files -------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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_IR_ASSEMBLYANNOTATIONWRITER_H
#define LLVM_IR_ASSEMBLYANNOTATIONWRITER_H
namespace llvm {
class Function;
class BasicBlock;
class Instruction;
class Value;
class formatted_raw_ostream;
class AssemblyAnnotationWriter {
public:
virtual ~AssemblyAnnotationWriter();
/// emitFunctionAnnot - This may be implemented to emit a string right before
/// the start of a function.
virtual void emitFunctionAnnot(const Function *,
formatted_raw_ostream &) {}
/// emitBasicBlockStartAnnot - This may be implemented to emit a string right
/// after the basic block label, but before the first instruction in the
/// block.
virtual void emitBasicBlockStartAnnot(const BasicBlock *,
formatted_raw_ostream &) {
}
/// emitBasicBlockEndAnnot - This may be implemented to emit a string right
/// after the basic block.
virtual void emitBasicBlockEndAnnot(const BasicBlock *,
formatted_raw_ostream &) {
}
/// emitInstructionAnnot - This may be implemented to emit a string right
/// before an instruction is emitted.
virtual void emitInstructionAnnot(const Instruction *,
formatted_raw_ostream &) {}
/// printInfoComment - This may be implemented to emit a comment to the
/// right of an instruction or global value.
virtual void printInfoComment(const Value &, formatted_raw_ostream &) {}
};
} // End llvm namespace
#endif
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