1 /* 2 * Copyright (C) 2015 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_LOAD_STORE_ELIMINATION_H_ 18 #define ART_COMPILER_OPTIMIZING_LOAD_STORE_ELIMINATION_H_ 19 20 #include "optimization.h" 21 22 namespace art { 23 24 class SideEffectsAnalysis; 25 26 class LoadStoreElimination : public HOptimization { 27 public: 28 // Whether or not we should attempt partial Load-store-elimination which 29 // requires additional blocks and predicated instructions. 30 static constexpr bool kEnablePartialLSE = false; 31 32 // Controls whether to enable VLOG(compiler) logs explaining the transforms taking place. 33 static constexpr bool kVerboseLoggingMode = false; 34 35 LoadStoreElimination(HGraph* graph, 36 OptimizingCompilerStats* stats, 37 const char* name = kLoadStoreEliminationPassName) HOptimization(graph,name,stats)38 : HOptimization(graph, name, stats) {} 39 Run()40 bool Run() override { 41 return Run(kEnablePartialLSE); 42 } 43 44 // Exposed for testing. 45 bool Run(bool enable_partial_lse); 46 47 static constexpr const char* kLoadStoreEliminationPassName = "load_store_elimination"; 48 49 private: 50 DISALLOW_COPY_AND_ASSIGN(LoadStoreElimination); 51 }; 52 53 } // namespace art 54 55 #endif // ART_COMPILER_OPTIMIZING_LOAD_STORE_ELIMINATION_H_ 56