1 /** 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 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 #include "optimizer/analysis/countable_loop_parser.h" 17 #include "optimizer/analysis/loop_analyzer.h" 18 #include "optimizer/ir/basicblock.h" 19 #include "optimizer/ir/graph.h" 20 21 namespace panda::compiler { 22 /** 23 * Check if loop is countable 24 * 25 * [Loop] 26 * Phi(init, update) 27 * ... 28 * update(phi, 1) 29 * Compare(Add/Sub, test) 30 * 31 * where `update` is Add or Sub instruction 32 */ Parse()33std::optional<CountableLoopInfo> CountableLoopParser::Parse() 34 { 35 return std::nullopt; 36 } 37 38 } // namespace panda::compiler 39