/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/MC/MCLabel.h
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1 | | //===- MCLabel.h - Machine Code Directional Local Labels --------*- C++ -*-===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | // |
9 | | // This file contains the declaration of the MCLabel class. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #ifndef LLVM_MC_MCLABEL_H |
14 | | #define LLVM_MC_MCLABEL_H |
15 | | |
16 | | namespace llvm { |
17 | | |
18 | | class raw_ostream; |
19 | | |
20 | | /// Instances of this class represent a label name in the MC file, |
21 | | /// and MCLabel are created and uniqued by the MCContext class. MCLabel |
22 | | /// should only be constructed for valid instances in the object file. |
23 | | class MCLabel { |
24 | | // The instance number of this Directional Local Label. |
25 | | unsigned Instance; |
26 | | |
27 | | private: // MCContext creates and uniques these. |
28 | | friend class MCContext; |
29 | | |
30 | 258 | MCLabel(unsigned instance) : Instance(instance) {} |
31 | | |
32 | | public: |
33 | | MCLabel(const MCLabel &) = delete; |
34 | | MCLabel &operator=(const MCLabel &) = delete; |
35 | | |
36 | | /// Get the current instance of this Directional Local Label. |
37 | 425 | unsigned getInstance() const { return Instance; } |
38 | | |
39 | | /// Increment the current instance of this Directional Local Label. |
40 | 368 | unsigned incInstance() { return ++Instance; } |
41 | | |
42 | | /// Print the value to the stream \p OS. |
43 | | void print(raw_ostream &OS) const; |
44 | | |
45 | | /// Print the value to stderr. |
46 | | void dump() const; |
47 | | }; |
48 | | |
49 | 0 | inline raw_ostream &operator<<(raw_ostream &OS, const MCLabel &Label) { |
50 | 0 | Label.print(OS); |
51 | 0 | return OS; |
52 | 0 | } |
53 | | |
54 | | } // end namespace llvm |
55 | | |
56 | | #endif // LLVM_MC_MCLABEL_H |