1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_ 18 #define ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_ 19 20 #include "base/arena_object.h" 21 #include "nodes.h" 22 #include "optimizing_compiler_stats.h" 23 24 namespace art { 25 26 /** 27 * Abstraction to implement an optimization pass. 28 */ 29 class HOptimization : public ArenaObject<kArenaAllocOptimization> { 30 public: 31 HOptimization(HGraph* graph, 32 const char* pass_name, 33 OptimizingCompilerStats* stats = nullptr) 34 : graph_(graph), 35 stats_(stats), 36 pass_name_(pass_name) {} 37 38 virtual ~HOptimization() {} 39 40 // Return the name of the pass. Pass names for a single HOptimization should be of form 41 // <optimization_name> or <optimization_name>$<pass_name> for common <optimization_name> prefix. 42 // Example: 'instruction_simplifier', 'instruction_simplifier$after_bce', 43 // 'instruction_simplifier$before_codegen'. 44 const char* GetPassName() const { return pass_name_; } 45 46 // Perform the analysis itself. 47 virtual void Run() = 0; 48 49 protected: 50 void MaybeRecordStat(MethodCompilationStat compilation_stat, size_t count = 1) const; 51 52 HGraph* const graph_; 53 // Used to record stats about the optimization. 54 OptimizingCompilerStats* const stats_; 55 56 private: 57 // Optimization pass name. 58 const char* pass_name_; 59 60 DISALLOW_COPY_AND_ASSIGN(HOptimization); 61 }; 62 63 } // namespace art 64 65 #endif // ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_ 66
