1 /* 2 * Copyright (c) 2021-2023 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 16 #ifndef COMPILER_OPTIMIZER_OPTIMIZATIONS_TRY_CATCH_RESOLVING_H 17 #define COMPILER_OPTIMIZER_OPTIMIZATIONS_TRY_CATCH_RESOLVING_H 18 19 #include "optimizer/ir/graph.h" 20 #include "optimizer/ir/inst.h" 21 #include "optimizer/pass.h" 22 23 namespace panda::compiler { 24 class TryCatchResolving : public Optimization { 25 public: 26 explicit TryCatchResolving(Graph *graph); 27 NO_MOVE_SEMANTIC(TryCatchResolving); 28 NO_COPY_SEMANTIC(TryCatchResolving); ~TryCatchResolving()29 ~TryCatchResolving() override 30 { 31 tryBlocks_.clear(); 32 throwInsts_.clear(); 33 catchBlocks_.clear(); 34 phiInsts_.clear(); 35 cphi2phi_.clear(); 36 catch2cphis_.clear(); 37 } 38 39 bool RunImpl() override; 40 GetPassName()41 const char *GetPassName() const override 42 { 43 return "TryCatchResolving"; 44 } 45 void InvalidateAnalyses() override; 46 47 private: 48 void CollectCandidates(); 49 BasicBlock *FindCatchBeginBlock(BasicBlock *bb); 50 void VisitTryInst(TryInst *tryInst); 51 void ConnectThrowCatch(); 52 void ConnectThrowCatchImpl(BasicBlock *catchBlock, BasicBlock *throwBlock, uint32_t catchPc, Inst *newObj, 53 Inst *thr0w); 54 void DeleteTryCatchEdges(BasicBlock *tryBegin, BasicBlock *tryEnd); 55 void RemoveCatchPhis(BasicBlock *cphisBlock, BasicBlock *catchBlock, Inst *throwInst, Inst *phiInst); 56 void RemoveCatchPhisImpl(CatchPhiInst *catchPhi, BasicBlock *catchBlock, Inst *throwInst); 57 58 private: 59 Marker marker_ {UNDEF_MARKER}; 60 ArenaVector<BasicBlock *> tryBlocks_; 61 ArenaVector<Inst *> throwInsts_; 62 ArenaMap<uint32_t, BasicBlock *> catchBlocks_; 63 ArenaMap<uint32_t, PhiInst *> phiInsts_; 64 ArenaMap<CatchPhiInst *, PhiInst *> cphi2phi_; 65 ArenaMap<BasicBlock *, BasicBlock *> catch2cphis_; 66 }; 67 } // namespace panda::compiler 68 69 #endif // COMPILER_OPTIMIZER_OPTIMIZATIONS_TRY_CATCH_RESOLVING_H 70