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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_FLOW_GRAPH_H_ | 5 #ifndef VM_FLOW_GRAPH_H_ |
6 #define VM_FLOW_GRAPH_H_ | 6 #define VM_FLOW_GRAPH_H_ |
7 | 7 |
8 #include "vm/growable_array.h" | 8 #include "vm/growable_array.h" |
9 #include "vm/parser.h" | 9 #include "vm/parser.h" |
10 | 10 |
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49 return postorder_; | 49 return postorder_; |
50 } | 50 } |
51 const GrowableArray<BlockEntryInstr*>& reverse_postorder() const { | 51 const GrowableArray<BlockEntryInstr*>& reverse_postorder() const { |
52 return reverse_postorder_; | 52 return reverse_postorder_; |
53 } | 53 } |
54 | 54 |
55 intptr_t max_virtual_register_number() const { | 55 intptr_t max_virtual_register_number() const { |
56 return current_ssa_temp_index(); | 56 return current_ssa_temp_index(); |
57 } | 57 } |
58 | 58 |
59 GraphEntryInstr* graph_entry() const { | |
60 return graph_entry_; | |
61 } | |
62 | |
63 // Operations on the flow graph. | 59 // Operations on the flow graph. |
64 void ComputeSSA(); | 60 void ComputeSSA(); |
65 | 61 |
66 // TODO(zerny): Once the SSA is feature complete this should be removed. | 62 // TODO(zerny): Once the SSA is feature complete this should be removed. |
67 void Bailout(const char* reason) const; | 63 void Bailout(const char* reason) const; |
68 | 64 |
69 private: | 65 private: |
70 void DiscoverBlocks(); | 66 void DiscoverBlocks(); |
71 | 67 |
72 // SSA transformation methods and fields. | 68 // SSA transformation methods and fields. |
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111 const intptr_t stack_local_count_; | 107 const intptr_t stack_local_count_; |
112 GraphEntryInstr* graph_entry_; | 108 GraphEntryInstr* graph_entry_; |
113 GrowableArray<BlockEntryInstr*> preorder_; | 109 GrowableArray<BlockEntryInstr*> preorder_; |
114 GrowableArray<BlockEntryInstr*> postorder_; | 110 GrowableArray<BlockEntryInstr*> postorder_; |
115 GrowableArray<BlockEntryInstr*> reverse_postorder_; | 111 GrowableArray<BlockEntryInstr*> reverse_postorder_; |
116 }; | 112 }; |
117 | 113 |
118 } // namespace dart | 114 } // namespace dart |
119 | 115 |
120 #endif // VM_FLOW_GRAPH_H_ | 116 #endif // VM_FLOW_GRAPH_H_ |
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