llvm/llvm/include/llvm/ADT/IntEqClasses.h

//===-- llvm/ADT/IntEqClasses.h - Equiv. Classes of Integers ----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Equivalence classes for small integers. This is a mapping of the integers
/// 0 .. N-1 into M equivalence classes numbered 0 .. M-1.
///
/// Initially each integer has its own equivalence class. Classes are joined by
/// passing a representative member of each class to join().
///
/// Once the classes are built, compress() will number them 0 .. M-1 and prevent
/// further changes.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_ADT_INTEQCLASSES_H
#define LLVM_ADT_INTEQCLASSES_H

#include "llvm/ADT/SmallVector.h"

namespace llvm {

class IntEqClasses { … };

} // End llvm namespace

#endif