llvm/llvm/include/llvm/IR/OptBisect.h

//===- llvm/IR/OptBisect.h - LLVM Bisect support ----------------*- 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
/// This file declares the interface for bisecting optimizations.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_OPTBISECT_H
#define LLVM_IR_OPTBISECT_H

#include "llvm/ADT/StringRef.h"
#include <limits>

namespace llvm {

/// Extensions to this class implement mechanisms to disable passes and
/// individual optimizations at compile time.
class OptPassGate { … };

/// This class implements a mechanism to disable passes and individual
/// optimizations at compile time based on a command line option
/// (-opt-bisect-limit) in order to perform a bisecting search for
/// optimization-related problems.
class OptBisect : public OptPassGate { … };

/// Singleton instance of the OptBisect class, so multiple pass managers don't
/// need to coordinate their uses of OptBisect.
OptPassGate &getGlobalPassGate();

} // end namespace llvm

#endif // LLVM_IR_OPTBISECT_H