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 #ifndef COMPILER_OPTIMIZER_ANALYSIS_TYPES_ANALISYS_H 17 #define COMPILER_OPTIMIZER_ANALYSIS_TYPES_ANALISYS_H 18 19 #include "optimizer/pass.h" 20 #include "optimizer/ir/graph.h" 21 #include "optimizer/ir/graph_visitor.h" 22 23 namespace panda::compiler { 24 /** 25 * TypesAnalysis sets assumed types(dynamic type) to phi instruction. 26 * If a PHI is user of a CastValueToAnyType, the type of CastValueToAnyType is set as assumed type of the PHI 27 * If a PHI is input of AnyTypeCheck, the type of CastValueToAnyType is set as assumed type of the PHI 28 * If a PHI has assumed type and we try to set another type, we change assumed type to undefine. 29 * If an assumed type is set for PHI, then we try to assign the type for all PHI that are inputs of the current PHI 30 */ 31 // NOLINTNEXTLINE(fuchsia-multiple-inheritance) 32 class TypesAnalysis final : public Analysis, public GraphVisitor { 33 public: TypesAnalysis(Graph * graph)34 explicit TypesAnalysis(Graph *graph) : Analysis(graph) {} 35 NO_MOVE_SEMANTIC(TypesAnalysis); 36 NO_COPY_SEMANTIC(TypesAnalysis); 37 ~TypesAnalysis() override = default; 38 GetBlocksToVisit()39 const ArenaVector<BasicBlock *> &GetBlocksToVisit() const override 40 { 41 return GetGraph()->GetBlocksRPO(); 42 } 43 GetPassName()44 const char *GetPassName() const override 45 { 46 return "TypesAnalysis"; 47 } 48 49 bool RunImpl() override; 50 51 protected: 52 static void VisitCastValueToAnyType(GraphVisitor *v, Inst *inst); 53 static void VisitAnyTypeCheck(GraphVisitor *v, Inst *inst); 54 55 #include "optimizer/ir/visitor.inc" 56 private: 57 void MarkedPhiRec(PhiInst *phi, AnyBaseType type); 58 Marker marker_ {UNDEF_MARKER}; 59 }; 60 } // namespace panda::compiler 61 62 #endif // COMPILER_OPTIMIZER_ANALYSIS_TYPES_ANALISYS_H 63