1 /** 2 * Copyright 2019 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef MINDSPORE_CCSRC_BACKEND_OPTIMIZER_PASS_COMMON_SUBEXPRESSION_ELIMINATION_H_ 17 #define MINDSPORE_CCSRC_BACKEND_OPTIMIZER_PASS_COMMON_SUBEXPRESSION_ELIMINATION_H_ 18 #include <string> 19 #include "backend/optimizer/common/pass.h" 20 #include "frontend/optimizer/cse.h" 21 22 namespace mindspore { 23 namespace opt { 24 class CommonSubexpressionElimination : public Pass { 25 public: Pass(name)26 explicit CommonSubexpressionElimination(const std::string &name = "cse") : Pass(name) {} 27 ~CommonSubexpressionElimination() override = default; 28 bool Run(const FuncGraphPtr &func_graph) override; 29 }; 30 31 class BackendCSE : public CSE { 32 public: 33 BackendCSE() = default; 34 ~BackendCSE() override = default; 35 virtual bool CheckEqualCnodeInputs(const AnfNodePtr &main, const AnfNodePtr &node) const; 36 bool CheckReplace(const AnfNodePtr &main, const AnfNodePtr &node, bool check_side_effect = true) const override; 37 virtual bool CheckEqualKernelBuildInfo(const AnfNodePtr &main, const AnfNodePtr &node) const; 38 bool Cse(const FuncGraphPtr graph, const FuncGraphManagerPtr manager) const override; 39 }; 40 } // namespace opt 41 } // namespace mindspore 42 43 #endif // MINDSPORE_CCSRC_BACKEND_OPTIMIZER_PASS_COMMON_SUBEXPRESSION_ELIMINATION_H_ 44