1 /* 2 * Copyright (c) 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 #ifndef ECMASCRIPT_COMPILER_DEPEND_CHAIN_HELPER_H 17 #define ECMASCRIPT_COMPILER_DEPEND_CHAIN_HELPER_H 18 19 #include "ecmascript/compiler/circuit_builder.h" 20 #include "ecmascript/compiler/gate_accessor.h" 21 #include "ecmascript/compiler/graph_visitor.h" 22 #include "ecmascript/compiler/later_elimination.h" 23 #include "ecmascript/compiler/range_guard.h" 24 #include "ecmascript/mem/chunk_containers.h" 25 26 namespace panda::ecmascript::kungfu { 27 class LaterElimination; 28 class RangeGuard; 29 class DependChains : public ChunkObject { 30 public: DependChains(Chunk * chunk)31 DependChains(Chunk* chunk) : chunk_(chunk) {} 32 ~DependChains() = default; 33 34 DependChains* UpdateNode(GateRef gate); 35 bool Equals(DependChains* that); 36 void Merge(DependChains* that); CopyFrom(DependChains * other)37 void CopyFrom(DependChains *other) 38 { 39 head_ = other->head_; 40 size_ = other->size_; 41 } 42 uint32_t FoundIndexCheckedForLength(RangeGuard* rangeGuard, GateRef input); 43 uint32_t FoundIndexCheckedForIndex(RangeGuard* rangeGuard, GateRef input); 44 GateRef LookupNode(LaterElimination* elimination, GateRef gate); 45 private: 46 struct Node { NodeNode47 Node(GateRef gate, Node* next) : gate(gate), next(next) {} 48 GateRef gate; 49 Node *next; 50 }; 51 52 Node *head_{nullptr}; 53 size_t size_ {0}; 54 Chunk* chunk_; 55 }; 56 } // panda::ecmascript::kungfu 57 #endif // ECMASCRIPT_COMPILER_DEPEND_CHAIN_HELPER_H