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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 // 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 #include "src/hydrogen-dce.h" | 5 #include "src/hydrogen-dce.h" |
| 6 #include "src/v8.h" | |
| 7 | 6 |
| 8 namespace v8 { | 7 namespace v8 { |
| 9 namespace internal { | 8 namespace internal { |
| 10 | 9 |
| 11 void HDeadCodeEliminationPhase::MarkLive( | 10 void HDeadCodeEliminationPhase::MarkLive( |
| 12 HValue* instr, ZoneList<HValue*>* worklist) { | 11 HValue* instr, ZoneList<HValue*>* worklist) { |
| 13 if (instr->CheckFlag(HValue::kIsLive)) return; // Already live. | 12 if (instr->CheckFlag(HValue::kIsLive)) return; // Already live. |
| 14 | 13 |
| 15 if (FLAG_trace_dead_code_elimination) PrintLive(NULL, instr); | 14 if (FLAG_trace_dead_code_elimination) PrintLive(NULL, instr); |
| 16 | 15 |
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| 97 HBasicBlock* block = phi->block(); | 96 HBasicBlock* block = phi->block(); |
| 98 phi->DeleteAndReplaceWith(NULL); | 97 phi->DeleteAndReplaceWith(NULL); |
| 99 if (phi->HasMergedIndex()) { | 98 if (phi->HasMergedIndex()) { |
| 100 block->RecordDeletedPhi(phi->merged_index()); | 99 block->RecordDeletedPhi(phi->merged_index()); |
| 101 } | 100 } |
| 102 } | 101 } |
| 103 } | 102 } |
| 104 | 103 |
| 105 } // namespace internal | 104 } // namespace internal |
| 106 } // namespace v8 | 105 } // namespace v8 |
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