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Diffstat (limited to 'include/llvm/MC/MCLabel.h')
-rw-r--r-- | include/llvm/MC/MCLabel.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/llvm/MC/MCLabel.h b/include/llvm/MC/MCLabel.h new file mode 100644 index 0000000..727520d --- /dev/null +++ b/include/llvm/MC/MCLabel.h @@ -0,0 +1,56 @@ +//===- 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 MCContext; + class raw_ostream; + + /// MCLabel - Instances of this class represent a label name in the MC file, + /// and MCLabel are created and unique'd by the MCContext class. MCLabel + /// should only be constructed for valid instances in the object file. + class MCLabel { + // Instance - the instance number of this Directional Local Label + unsigned Instance; + + private: // MCContext creates and uniques these. + friend class MCContext; + MCLabel(unsigned instance) + : Instance(instance) {} + + MCLabel(const MCLabel&); // DO NOT IMPLEMENT + void operator=(const MCLabel&); // DO NOT IMPLEMENT + public: + /// getInstance - Get the current instance of this Directional Local Label. + unsigned getInstance() const { return Instance; } + + /// incInstance - Increment the current instance of this Directional Local + /// Label. + unsigned incInstance() { return ++Instance; } + + /// print - Print the value to the stream \arg OS. + void print(raw_ostream &OS) const; + + /// dump - 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 |