/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_CORE_COMMON_RUNTIME_LOWER_WHILE_OP_H_
#define TENSORFLOW_CORE_COMMON_RUNTIME_LOWER_WHILE_OP_H_

#include "tensorflow/core/common_runtime/optimization_registry.h"
#include "tensorflow/core/lib/core/status.h"

namespace tensorflow {

// Replaces While node `n` with its lowered form that uses Enter, Exit, Switch,
// Merge, NextIteration and LoopCond nodes.
Status RewriteWhileNode(Node* n, Graph* g, bool keep_node_fetchable);

}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_COMMON_RUNTIME_LOWER_WHILE_OP_H_
