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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" |
(...skipping 10 matching lines...) Expand all Loading... |
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::map<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 |
| 34 bool ReachableFrom(Node* const sink, Node* const source); |
33 | 35 |
34 CommonOperatorBuilder* common() const { return common_; } | 36 CommonOperatorBuilder* common() const { return common_; } |
35 Graph* graph() const { return graph_; } | 37 Graph* graph() const { return graph_; } |
36 | 38 |
37 CommonOperatorBuilder* common_; | 39 CommonOperatorBuilder* common_; |
38 Graph* graph_; | 40 Graph* graph_; |
39 Merges merges_; | 41 Merges merges_; |
40 }; | 42 }; |
41 | 43 |
42 } // namespace compiler | 44 } // namespace compiler |
43 } // namespace internal | 45 } // namespace internal |
44 } // namespace v8 | 46 } // namespace v8 |
45 | 47 |
46 #endif // V8_COMPILER_SELECT_LOWERING_H_ | 48 #endif // V8_COMPILER_SELECT_LOWERING_H_ |
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