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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_COMPILER_SELECT_LOWERING_H_ | 5 #ifndef V8_COMPILER_SELECT_LOWERING_H_ |
| 6 #define V8_COMPILER_SELECT_LOWERING_H_ | 6 #define V8_COMPILER_SELECT_LOWERING_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 | 9 |
| 10 #include "src/compiler/graph-reducer.h" | 10 #include "src/compiler/graph-reducer.h" |
| 11 #include "src/zone-allocator.h" | 11 #include "src/zone-allocator.h" |
| 12 | 12 |
| 13 namespace v8 { | 13 namespace v8 { |
| 14 namespace internal { | 14 namespace internal { |
| 15 namespace compiler { | 15 namespace compiler { |
| 16 | 16 |
| 17 // Forward declarations. | 17 // Forward declarations. |
| 18 class CommonOperatorBuilder; | 18 class CommonOperatorBuilder; |
| 19 class Graph; | 19 class Graph; |
| 20 | 20 |
| 21 | 21 |
| 22 // Lowers Select nodes to diamonds. | 22 // Lowers Select nodes to diamonds. |
| 23 class SelectLowering FINAL : public Reducer { | 23 class SelectLowering final : public Reducer { |
| 24 public: | 24 public: |
| 25 SelectLowering(Graph* graph, CommonOperatorBuilder* common); | 25 SelectLowering(Graph* graph, CommonOperatorBuilder* common); |
| 26 ~SelectLowering(); | 26 ~SelectLowering(); |
| 27 | 27 |
| 28 Reduction Reduce(Node* node) OVERRIDE; | 28 Reduction Reduce(Node* node) override; |
| 29 | 29 |
| 30 private: | 30 private: |
| 31 typedef std::multimap<Node*, Node*, std::less<Node*>, | 31 typedef std::multimap<Node*, Node*, std::less<Node*>, |
| 32 zone_allocator<std::pair<Node* const, Node*>>> Merges; | 32 zone_allocator<std::pair<Node* const, Node*>>> Merges; |
| 33 | 33 |
| 34 bool ReachableFrom(Node* const sink, Node* const source); | 34 bool ReachableFrom(Node* const sink, Node* const source); |
| 35 | 35 |
| 36 CommonOperatorBuilder* common() const { return common_; } | 36 CommonOperatorBuilder* common() const { return common_; } |
| 37 Graph* graph() const { return graph_; } | 37 Graph* graph() const { return graph_; } |
| 38 | 38 |
| 39 CommonOperatorBuilder* common_; | 39 CommonOperatorBuilder* common_; |
| 40 Graph* graph_; | 40 Graph* graph_; |
| 41 Merges merges_; | 41 Merges merges_; |
| 42 }; | 42 }; |
| 43 | 43 |
| 44 } // namespace compiler | 44 } // namespace compiler |
| 45 } // namespace internal | 45 } // namespace internal |
| 46 } // namespace v8 | 46 } // namespace v8 |
| 47 | 47 |
| 48 #endif // V8_COMPILER_SELECT_LOWERING_H_ | 48 #endif // V8_COMPILER_SELECT_LOWERING_H_ |
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