1 /* 2 * Copyright (c) 2023 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 #ifndef ECMASCRIPT_COMPILER_PGO_TYPE_PGO_HCLASS_GENERATOR_H 16 #define ECMASCRIPT_COMPILER_PGO_TYPE_PGO_HCLASS_GENERATOR_H 17 18 #include "ecmascript/compiler/pgo_type/pgo_type_manager.h" 19 #include "ecmascript/compiler/pgo_type/pgo_type_recorder.h" 20 #include "ecmascript/js_hclass.h" 21 22 namespace panda::ecmascript::kungfu { 23 class PGOHClassGenerator { 24 public: 25 enum class Status: uint8_t { 26 NONE = 0x00UL, 27 PREPROCESSOR = 0x01UL, 28 ISCACHE = 0x1UL << 1, 29 }; 30 31 PGOHClassGenerator(const PGOTypeRecorder &typeRecorder, PGOTypeManager *ptManager, Status status = Status::NONE) typeRecorder_(typeRecorder)32 : typeRecorder_(typeRecorder), ptManager_(ptManager), status_(status) {} 33 34 bool FindHClassLayoutDesc(PGOSampleType type) const; 35 bool GenerateHClass(PGOSampleType type) const; 36 bool GenerateIHClass(PGOSampleType type, const JSHandle<JSTaggedValue> &prototype) const; 37 38 bool IsCache() const; 39 bool IsPreprocessObjectLiteralLength() const; 40 void SetStatus(Status status) const; 41 42 private: 43 void CalculateMaxNumOfObj( 44 const PGOHClassTreeDesc *desc, const HClassLayoutDesc *parent, uint32_t lastNum, uint32_t &maxNum) const; 45 bool CheckIsValid(PGOSampleType type, uint32_t maxNum) const; 46 void CalculateMaxNumOfObjIncludeProtoTransition(PGOSampleType type, uint32_t &maxNum) const; 47 JSHandle<JSHClass> CreateRootPHClass( 48 ProfileType rootType, const HClassLayoutDesc *layoutDesc, uint32_t maxNum, bool isTransitionPhc) const; 49 JSHandle<JSHClass> CreateRootCHClass( 50 ProfileType rootType, const HClassLayoutDesc *layoutDesc, uint32_t maxNum) const; 51 JSHandle<JSHClass> CreateRootHClass( 52 ProfileType rootType, const HClassLayoutDesc *layoutDesc, uint32_t maxNum) const; 53 JSHandle<JSHClass> CreateRootHClassWithCached( 54 ProfileType rootType, const HClassLayoutDesc *layoutDesc, uint32_t literalLength, uint32_t maxPropsNum) const; 55 56 void CreateChildHClass(ProfileType rootType, const PGOHClassTreeDesc *desc, const JSHandle<JSHClass> &parent, 57 const HClassLayoutDesc *parentLayoutDesc) const; 58 59 const PGOTypeRecorder &typeRecorder_; 60 PGOTypeManager *ptManager_; 61 mutable Status status_; 62 }; 63 } // panda::ecmascript::kungfu 64 #endif // ECMASCRIPT_COMPILER_PGO_TYPE_PGO_HCLASS_GENERATOR_H 65