diff options
Diffstat (limited to 'clang-r344140b/include/llvm/MC/MCLabel.h')
| -rw-r--r-- | clang-r344140b/include/llvm/MC/MCLabel.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/clang-r344140b/include/llvm/MC/MCLabel.h b/clang-r344140b/include/llvm/MC/MCLabel.h new file mode 100644 index 00000000..aaf70691 --- /dev/null +++ b/clang-r344140b/include/llvm/MC/MCLabel.h @@ -0,0 +1,57 @@ +//===- MCLabel.h - Machine Code Directional Local Labels --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the declaration of the MCLabel class. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_MC_MCLABEL_H +#define LLVM_MC_MCLABEL_H + +namespace llvm { + +class raw_ostream; + +/// Instances of this class represent a label name in the MC file, +/// and MCLabel are created and uniqued by the MCContext class. MCLabel +/// should only be constructed for valid instances in the object file. +class MCLabel { + // The instance number of this Directional Local Label. + unsigned Instance; + +private: // MCContext creates and uniques these. + friend class MCContext; + + MCLabel(unsigned instance) : Instance(instance) {} + +public: + MCLabel(const MCLabel &) = delete; + MCLabel &operator=(const MCLabel &) = delete; + + /// Get the current instance of this Directional Local Label. + unsigned getInstance() const { return Instance; } + + /// Increment the current instance of this Directional Local Label. + unsigned incInstance() { return ++Instance; } + + /// Print the value to the stream \p OS. + void print(raw_ostream &OS) const; + + /// Print the value to stderr. + void dump() const; +}; + +inline raw_ostream &operator<<(raw_ostream &OS, const MCLabel &Label) { + Label.print(OS); + return OS; +} + +} // end namespace llvm + +#endif // LLVM_MC_MCLABEL_H |
