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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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111 phi->ClearFlag(HValue::kIsLive); | 111 phi->ClearFlag(HValue::kIsLive); |
112 } | 112 } |
113 } | 113 } |
114 } | 114 } |
115 | 115 |
116 // Process phis separately to avoid simultaneously mutating the phi list. | 116 // Process phis separately to avoid simultaneously mutating the phi list. |
117 while (!worklist.is_empty()) { | 117 while (!worklist.is_empty()) { |
118 HPhi* phi = worklist.RemoveLast(); | 118 HPhi* phi = worklist.RemoveLast(); |
119 HBasicBlock* block = phi->block(); | 119 HBasicBlock* block = phi->block(); |
120 phi->DeleteAndReplaceWith(NULL); | 120 phi->DeleteAndReplaceWith(NULL); |
121 block->RecordDeletedPhi(phi->merged_index()); | 121 if (phi->HasMergedIndex()) { |
| 122 block->RecordDeletedPhi(phi->merged_index()); |
| 123 } |
122 } | 124 } |
123 } | 125 } |
124 | 126 |
125 } } // namespace v8::internal | 127 } } // namespace v8::internal |
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