Nicolas Geoffray | 26a25ef | 2014-09-30 13:54:09 +0100 | [diff] [blame] | 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_PREPARE_FOR_REGISTER_ALLOCATION_H_ |
| 18 | #define ART_COMPILER_OPTIMIZING_PREPARE_FOR_REGISTER_ALLOCATION_H_ |
| 19 | |
| 20 | #include "nodes.h" |
| 21 | |
| 22 | namespace art { |
| 23 | |
| 24 | /** |
| 25 | * A simplification pass over the graph before doing register allocation. |
| 26 | * For example it changes uses of null checks and bounds checks to the original |
| 27 | * objects, to avoid creating a live range for these checks. |
| 28 | */ |
Nicolas Geoffray | 360231a | 2014-10-08 21:07:48 +0100 | [diff] [blame] | 29 | class PrepareForRegisterAllocation : public HGraphDelegateVisitor { |
Nicolas Geoffray | 26a25ef | 2014-09-30 13:54:09 +0100 | [diff] [blame] | 30 | public: |
Nicolas Geoffray | 360231a | 2014-10-08 21:07:48 +0100 | [diff] [blame] | 31 | explicit PrepareForRegisterAllocation(HGraph* graph) : HGraphDelegateVisitor(graph) {} |
Nicolas Geoffray | 26a25ef | 2014-09-30 13:54:09 +0100 | [diff] [blame] | 32 | |
| 33 | void Run(); |
| 34 | |
| 35 | private: |
Alexandre Rames | 2ed20af | 2015-03-06 13:55:35 +0000 | [diff] [blame] | 36 | void VisitNullCheck(HNullCheck* check) OVERRIDE; |
| 37 | void VisitDivZeroCheck(HDivZeroCheck* check) OVERRIDE; |
| 38 | void VisitBoundsCheck(HBoundsCheck* check) OVERRIDE; |
| 39 | void VisitBoundType(HBoundType* bound_type) OVERRIDE; |
| 40 | void VisitClinitCheck(HClinitCheck* check) OVERRIDE; |
| 41 | void VisitCondition(HCondition* condition) OVERRIDE; |
Nicolas Geoffray | 26a25ef | 2014-09-30 13:54:09 +0100 | [diff] [blame] | 42 | |
| 43 | DISALLOW_COPY_AND_ASSIGN(PrepareForRegisterAllocation); |
| 44 | }; |
| 45 | |
| 46 | } // namespace art |
| 47 | |
| 48 | #endif // ART_COMPILER_OPTIMIZING_PREPARE_FOR_REGISTER_ALLOCATION_H_ |