llvm/llvm/include/llvm/CodeGen/MachinePassRegistry.h

//===- llvm/CodeGen/MachinePassRegistry.h -----------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file contains the mechanics for machine function pass registries.  A
// function pass registry (MachinePassRegistry) is auto filled by the static
// constructors of MachinePassRegistryNode.  Further there is a command line
// parser (RegisterPassParser) which listens to each registry for additions
// and deletions, so that the appropriate command option is updated.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_MACHINEPASSREGISTRY_H
#define LLVM_CODEGEN_MACHINEPASSREGISTRY_H

#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/CommandLine.h"

namespace llvm {

//===----------------------------------------------------------------------===//
///
/// MachinePassRegistryListener - Listener to adds and removals of nodes in
/// registration list.
///
//===----------------------------------------------------------------------===//
template <class PassCtorTy> class MachinePassRegistryListener { … };

//===----------------------------------------------------------------------===//
///
/// MachinePassRegistryNode - Machine pass node stored in registration list.
///
//===----------------------------------------------------------------------===//
template <typename PassCtorTy> class MachinePassRegistryNode { … };

//===----------------------------------------------------------------------===//
///
/// MachinePassRegistry - Track the registration of machine passes.
///
//===----------------------------------------------------------------------===//
template <typename PassCtorTy> class MachinePassRegistry { … };

//===----------------------------------------------------------------------===//
///
/// RegisterPassParser class - Handle the addition of new machine passes.
///
//===----------------------------------------------------------------------===//
template <class RegistryClass>
class RegisterPassParser
    : public MachinePassRegistryListener<
          typename RegistryClass::FunctionPassCtor>,
      public cl::parser<typename RegistryClass::FunctionPassCtor> { … };

} // end namespace llvm

#endif // LLVM_CODEGEN_MACHINEPASSREGISTRY_H