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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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2389 | 2389 |
2390 // Prune the string table removing all strings only pointed to by the | 2390 // Prune the string table removing all strings only pointed to by the |
2391 // string table. Cannot use string_table() here because the string | 2391 // string table. Cannot use string_table() here because the string |
2392 // table is marked. | 2392 // table is marked. |
2393 StringTable* string_table = heap()->string_table(); | 2393 StringTable* string_table = heap()->string_table(); |
2394 StringTableCleaner v(heap()); | 2394 StringTableCleaner v(heap()); |
2395 string_table->IterateElements(&v); | 2395 string_table->IterateElements(&v); |
2396 string_table->ElementsRemoved(v.PointersRemoved()); | 2396 string_table->ElementsRemoved(v.PointersRemoved()); |
2397 heap()->external_string_table_.Iterate(&v); | 2397 heap()->external_string_table_.Iterate(&v); |
2398 heap()->external_string_table_.CleanUp(); | 2398 heap()->external_string_table_.CleanUp(); |
2399 heap()->error_object_list_.RemoveUnmarked(heap()); | |
2400 | 2399 |
2401 // Process the weak references. | 2400 // Process the weak references. |
2402 MarkCompactWeakObjectRetainer mark_compact_object_retainer; | 2401 MarkCompactWeakObjectRetainer mark_compact_object_retainer; |
2403 heap()->ProcessWeakReferences(&mark_compact_object_retainer); | 2402 heap()->ProcessWeakReferences(&mark_compact_object_retainer); |
2404 | 2403 |
2405 // Remove object groups after marking phase. | 2404 // Remove object groups after marking phase. |
2406 heap()->isolate()->global_handles()->RemoveObjectGroups(); | 2405 heap()->isolate()->global_handles()->RemoveObjectGroups(); |
2407 heap()->isolate()->global_handles()->RemoveImplicitRefGroups(); | 2406 heap()->isolate()->global_handles()->RemoveImplicitRefGroups(); |
2408 | 2407 |
2409 // Flush code from collected candidates. | 2408 // Flush code from collected candidates. |
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3456 | 3455 |
3457 // Update pointer from the native contexts list. | 3456 // Update pointer from the native contexts list. |
3458 updating_visitor.VisitPointer(heap_->native_contexts_list_address()); | 3457 updating_visitor.VisitPointer(heap_->native_contexts_list_address()); |
3459 | 3458 |
3460 heap_->string_table()->Iterate(&updating_visitor); | 3459 heap_->string_table()->Iterate(&updating_visitor); |
3461 | 3460 |
3462 // Update pointers from external string table. | 3461 // Update pointers from external string table. |
3463 heap_->UpdateReferencesInExternalStringTable( | 3462 heap_->UpdateReferencesInExternalStringTable( |
3464 &UpdateReferenceInExternalStringTableEntry); | 3463 &UpdateReferenceInExternalStringTableEntry); |
3465 | 3464 |
3466 // Update pointers in the new error object list. | |
3467 heap_->error_object_list()->UpdateReferences(); | |
3468 | |
3469 if (!FLAG_watch_ic_patching) { | 3465 if (!FLAG_watch_ic_patching) { |
3470 // Update JSFunction pointers from the runtime profiler. | 3466 // Update JSFunction pointers from the runtime profiler. |
3471 heap()->isolate()->runtime_profiler()->UpdateSamplesAfterCompact( | 3467 heap()->isolate()->runtime_profiler()->UpdateSamplesAfterCompact( |
3472 &updating_visitor); | 3468 &updating_visitor); |
3473 } | 3469 } |
3474 | 3470 |
3475 EvacuationWeakObjectRetainer evacuation_object_retainer; | 3471 EvacuationWeakObjectRetainer evacuation_object_retainer; |
3476 heap()->ProcessWeakReferences(&evacuation_object_retainer); | 3472 heap()->ProcessWeakReferences(&evacuation_object_retainer); |
3477 | 3473 |
3478 // Visit invalidated code (we ignored all slots on it) and clear mark-bits | 3474 // Visit invalidated code (we ignored all slots on it) and clear mark-bits |
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4315 while (buffer != NULL) { | 4311 while (buffer != NULL) { |
4316 SlotsBuffer* next_buffer = buffer->next(); | 4312 SlotsBuffer* next_buffer = buffer->next(); |
4317 DeallocateBuffer(buffer); | 4313 DeallocateBuffer(buffer); |
4318 buffer = next_buffer; | 4314 buffer = next_buffer; |
4319 } | 4315 } |
4320 *buffer_address = NULL; | 4316 *buffer_address = NULL; |
4321 } | 4317 } |
4322 | 4318 |
4323 | 4319 |
4324 } } // namespace v8::internal | 4320 } } // namespace v8::internal |
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