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 "base/macros.h" 21 #include "optimization.h" 22 23 namespace art HIDDEN { 24 25 class SideEffectsAnalysis; 26 27 class LoadStoreElimination : public HOptimization { 28 public: 29 // Whether or not we should attempt partial Load-store-elimination which 30 // requires additional blocks and predicated instructions. 31 static constexpr bool kEnablePartialLSE = false; 32 33 // Controls whether to enable VLOG(compiler) logs explaining the transforms taking place. 34 static constexpr bool kVerboseLoggingMode = false; 35 36 LoadStoreElimination(HGraph* graph, 37 OptimizingCompilerStats* stats, 38 const char* name = kLoadStoreEliminationPassName) HOptimization(graph,name,stats)39 : HOptimization(graph, name, stats) {} 40 Run()41 bool Run() override { 42 return Run(kEnablePartialLSE); 43 } 44 45 // Exposed for testing. 46 bool Run(bool enable_partial_lse); 47 48 static constexpr const char* kLoadStoreEliminationPassName = "load_store_elimination"; 49 50 private: 51 DISALLOW_COPY_AND_ASSIGN(LoadStoreElimination); 52 }; 53 54 } // namespace art 55 56 #endif // ART_COMPILER_OPTIMIZING_LOAD_STORE_ELIMINATION_H_ 57