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
21 /// Instances of this class represent a label name in the MC file,
22 /// and MCLabel are created and uniqued by the MCContext class. MCLabel
23 /// should only be constructed for valid instances in the object file.
25 // The instance number of this Directional Local Label.
28 private: // MCContext creates and uniques these.
29 friend class MCContext;
31 MCLabel(unsigned instance) : Instance(instance) {}
34 MCLabel(const MCLabel &) = delete;
35 MCLabel &operator=(const MCLabel &) = delete;
37 /// Get the current instance of this Directional Local Label.
38 unsigned getInstance() const { return Instance; }
40 /// Increment the current instance of this Directional Local Label.
41 unsigned incInstance() { return ++Instance; }
43 /// Print the value to the stream \p OS.
44 void print(raw_ostream &OS) const;
46 /// Print the value to stderr.
50 inline raw_ostream &operator<<(raw_ostream &OS, const MCLabel &Label) {
55 } // end namespace llvm
57 #endif // LLVM_MC_MCLABEL_H