57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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//===- MCLabel.h - Machine Code Directional Local Labels --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declaration of the MCLabel class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCLABEL_H
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#define LLVM_MC_MCLABEL_H
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namespace llvm {
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class raw_ostream;
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/// Instances of this class represent a label name in the MC file,
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/// and MCLabel are created and uniqued by the MCContext class. MCLabel
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/// should only be constructed for valid instances in the object file.
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class MCLabel {
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// The instance number of this Directional Local Label.
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unsigned Instance;
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private: // MCContext creates and uniques these.
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friend class MCContext;
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MCLabel(unsigned instance) : Instance(instance) {}
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public:
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MCLabel(const MCLabel &) = delete;
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MCLabel &operator=(const MCLabel &) = delete;
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/// Get the current instance of this Directional Local Label.
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unsigned getInstance() const { return Instance; }
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/// Increment the current instance of this Directional Local Label.
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unsigned incInstance() { return ++Instance; }
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/// Print the value to the stream \p OS.
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void print(raw_ostream &OS) const;
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/// Print the value to stderr.
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void dump() const;
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};
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inline raw_ostream &operator<<(raw_ostream &OS, const MCLabel &Label) {
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Label.print(OS);
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return OS;
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}
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} // end namespace llvm
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#endif // LLVM_MC_MCLABEL_H
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