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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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| 100 continue; | 100 continue; |
| 101 } | 101 } |
| 102 HDummyUse* dummy = new(graph()->zone()) HDummyUse(operand); | 102 HDummyUse* dummy = new(graph()->zone()) HDummyUse(operand); |
| 103 dummy->InsertBefore(instr); | 103 dummy->InsertBefore(instr); |
| 104 last_dummy = dummy; | 104 last_dummy = dummy; |
| 105 } | 105 } |
| 106 if (last_dummy == NULL) last_dummy = graph()->GetConstant1(); | 106 if (last_dummy == NULL) last_dummy = graph()->GetConstant1(); |
| 107 instr->DeleteAndReplaceWith(last_dummy); | 107 instr->DeleteAndReplaceWith(last_dummy); |
| 108 continue; | 108 continue; |
| 109 } | 109 } |
| 110 if (instr->IsSoftDeoptimize()) { | 110 if (instr->IsDeoptimize()) { |
| 111 ASSERT(block->IsDeoptimizing()); | 111 ASSERT(block->IsDeoptimizing()); |
| 112 nullify = true; | 112 nullify = true; |
| 113 } | 113 } |
| 114 } | 114 } |
| 115 } | 115 } |
| 116 } | 116 } |
| 117 | 117 |
| 118 | 118 |
| 119 void HPropagateDeoptimizingMarkPhase::Run() { | 119 void HPropagateDeoptimizingMarkPhase::Run() { |
| 120 // Skip this phase if there is nothing to be done anyway. | 120 // Skip this phase if there is nothing to be done anyway. |
| 121 if (!graph()->has_soft_deoptimize()) return; | 121 if (!graph()->has_soft_deoptimize()) return; |
| 122 MarkAsDeoptimizing(); | 122 MarkAsDeoptimizing(); |
| 123 NullifyUnreachableInstructions(); | 123 NullifyUnreachableInstructions(); |
| 124 } | 124 } |
| 125 | 125 |
| 126 } } // namespace v8::internal | 126 } } // namespace v8::internal |
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