1 //===- MCLabel.h - Machine Code Directional Local Labels --------*- 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 the declaration of the MCLabel class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_MC_MCLABEL_H
15 #define LLVM_MC_MCLABEL_H
17 #include "llvm/Support/Compiler.h"
23 /// \brief Instances of this class represent a label name in the MC file,
24 /// and MCLabel are created and uniqued by the MCContext class. MCLabel
25 /// should only be constructed for valid instances in the object file.
27 // \brief The instance number of this Directional Local Label.
30 private: // MCContext creates and uniques these.
31 friend class MCContext;
32 MCLabel(unsigned instance) : Instance(instance) {}
34 MCLabel(const MCLabel &) = delete;
35 void operator=(const MCLabel &) = delete;
38 /// \brief Get the current instance of this Directional Local Label.
39 unsigned getInstance() const { return Instance; }
41 /// \brief Increment the current instance of this Directional Local Label.
42 unsigned incInstance() { return ++Instance; }
44 /// \brief Print the value to the stream \p OS.
45 void print(raw_ostream &OS) const;
47 /// \brief Print the value to stderr.
51 inline raw_ostream &operator<<(raw_ostream &OS, const MCLabel &Label) {
55 } // end namespace llvm