1 | /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | // An optimization pass that performs common subexpression elimination. |
17 | |
18 | #ifndef TENSORFLOW_CORE_GRAPH_OPTIMIZER_CSE_H_ |
19 | #define TENSORFLOW_CORE_GRAPH_OPTIMIZER_CSE_H_ |
20 | |
21 | #include <sys/types.h> |
22 | #include "tensorflow/core/graph/graph.h" |
23 | |
24 | namespace tensorflow { |
25 | |
26 | // Perform common-subexpression elimination on the graph "*g". If |
27 | // "consider_fn" is not nullptr, then only nodes for which |
28 | // consider_fn(node) returns true will be considered for combining |
29 | // during the common subexpression elimination. |
30 | // |
31 | // Returns true if and only if 'g' is mutated. |
32 | extern bool OptimizeCSE(Graph* g, |
33 | const std::function<bool(const Node*)>& consider_fn); |
34 | |
35 | } // namespace tensorflow |
36 | |
37 | #endif // TENSORFLOW_CORE_GRAPH_OPTIMIZER_CSE_H_ |
38 | |