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 #include "bb_optimizations.h" 18 #include "dataflow_iterator.h" 19 #include "dataflow_iterator-inl.h" 20 21 namespace art { 22 23 /* 24 * Code Layout pass implementation start. 25 */ 26 bool CodeLayout::Worker(const PassDataHolder* data) const { 27 DCHECK(data != nullptr); 28 const PassMEDataHolder* pass_me_data_holder = down_cast<const PassMEDataHolder*>(data); 29 CompilationUnit* c_unit = pass_me_data_holder->c_unit; 30 DCHECK(c_unit != nullptr); 31 BasicBlock* bb = pass_me_data_holder->bb; 32 DCHECK(bb != nullptr); 33 c_unit->mir_graph->LayoutBlocks(bb); 34 // No need of repeating, so just return false. 35 return false; 36 } 37 38 /* 39 * BasicBlock Combine pass implementation start. 40 */ 41 bool BBCombine::Worker(const PassDataHolder* data) const { 42 DCHECK(data != nullptr); 43 const PassMEDataHolder* pass_me_data_holder = down_cast<const PassMEDataHolder*>(data); 44 CompilationUnit* c_unit = pass_me_data_holder->c_unit; 45 DCHECK(c_unit != nullptr); 46 BasicBlock* bb = pass_me_data_holder->bb; 47 DCHECK(bb != nullptr); 48 c_unit->mir_graph->CombineBlocks(bb); 49 50 // No need of repeating, so just return false. 51 return false; 52 } 53 54 /* 55 * BasicBlock Optimization pass implementation start. 56 */ 57 void BBOptimizations::Start(PassDataHolder* data) const { 58 DCHECK(data != nullptr); 59 CompilationUnit* c_unit = down_cast<PassMEDataHolder*>(data)->c_unit; 60 DCHECK(c_unit != nullptr); 61 /* 62 * This pass has a different ordering depEnding on the suppress exception, 63 * so do the pass here for now: 64 * - Later, the Start should just change the ordering and we can move the extended 65 * creation into the pass driver's main job with a new iterator 66 */ 67 c_unit->mir_graph->BasicBlockOptimization(); 68 } 69 70 } // namespace art 71
