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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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1320 for (HeapObject* heap_object = cell_iterator.Next(); | 1320 for (HeapObject* heap_object = cell_iterator.Next(); |
1321 heap_object != NULL; | 1321 heap_object != NULL; |
1322 heap_object = cell_iterator.Next()) { | 1322 heap_object = cell_iterator.Next()) { |
1323 if (heap_object->IsJSGlobalPropertyCell()) { | 1323 if (heap_object->IsJSGlobalPropertyCell()) { |
1324 JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(heap_object); | 1324 JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(heap_object); |
1325 Address value_address = cell->ValueAddress(); | 1325 Address value_address = cell->ValueAddress(); |
1326 scavenge_visitor.VisitPointer(reinterpret_cast<Object**>(value_address)); | 1326 scavenge_visitor.VisitPointer(reinterpret_cast<Object**>(value_address)); |
1327 } | 1327 } |
1328 } | 1328 } |
1329 | 1329 |
| 1330 // Copy objects reachable from the code flushing candidates list. |
| 1331 MarkCompactCollector* collector = mark_compact_collector(); |
| 1332 if (collector->is_code_flushing_enabled()) { |
| 1333 collector->code_flusher()->IteratePointersToFromSpace(&scavenge_visitor); |
| 1334 } |
| 1335 |
1330 // Scavenge object reachable from the native contexts list directly. | 1336 // Scavenge object reachable from the native contexts list directly. |
1331 scavenge_visitor.VisitPointer(BitCast<Object**>(&native_contexts_list_)); | 1337 scavenge_visitor.VisitPointer(BitCast<Object**>(&native_contexts_list_)); |
1332 | 1338 |
1333 new_space_front = DoScavenge(&scavenge_visitor, new_space_front); | 1339 new_space_front = DoScavenge(&scavenge_visitor, new_space_front); |
1334 isolate_->global_handles()->IdentifyNewSpaceWeakIndependentHandles( | 1340 isolate_->global_handles()->IdentifyNewSpaceWeakIndependentHandles( |
1335 &IsUnscavengedHeapObject); | 1341 &IsUnscavengedHeapObject); |
1336 isolate_->global_handles()->IterateNewSpaceWeakIndependentRoots( | 1342 isolate_->global_handles()->IterateNewSpaceWeakIndependentRoots( |
1337 &scavenge_visitor); | 1343 &scavenge_visitor); |
1338 new_space_front = DoScavenge(&scavenge_visitor, new_space_front); | 1344 new_space_front = DoScavenge(&scavenge_visitor, new_space_front); |
1339 | 1345 |
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5535 | 5541 |
5536 | 5542 |
5537 bool Heap::LookupSymbolIfExists(String* string, String** symbol) { | 5543 bool Heap::LookupSymbolIfExists(String* string, String** symbol) { |
5538 if (string->IsSymbol()) { | 5544 if (string->IsSymbol()) { |
5539 *symbol = string; | 5545 *symbol = string; |
5540 return true; | 5546 return true; |
5541 } | 5547 } |
5542 return symbol_table()->LookupSymbolIfExists(string, symbol); | 5548 return symbol_table()->LookupSymbolIfExists(string, symbol); |
5543 } | 5549 } |
5544 | 5550 |
| 5551 |
5545 void Heap::ZapFromSpace() { | 5552 void Heap::ZapFromSpace() { |
5546 NewSpacePageIterator it(new_space_.FromSpaceStart(), | 5553 NewSpacePageIterator it(new_space_.FromSpaceStart(), |
5547 new_space_.FromSpaceEnd()); | 5554 new_space_.FromSpaceEnd()); |
5548 while (it.has_next()) { | 5555 while (it.has_next()) { |
5549 NewSpacePage* page = it.next(); | 5556 NewSpacePage* page = it.next(); |
5550 for (Address cursor = page->area_start(), limit = page->area_end(); | 5557 for (Address cursor = page->area_start(), limit = page->area_end(); |
5551 cursor < limit; | 5558 cursor < limit; |
5552 cursor += kPointerSize) { | 5559 cursor += kPointerSize) { |
5553 Memory::Address_at(cursor) = kFromSpaceZapValue; | 5560 Memory::Address_at(cursor) = kFromSpaceZapValue; |
5554 } | 5561 } |
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7360 static_cast<int>(object_sizes_last_time_[index])); | 7367 static_cast<int>(object_sizes_last_time_[index])); |
7361 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT) | 7368 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT) |
7362 #undef ADJUST_LAST_TIME_OBJECT_COUNT | 7369 #undef ADJUST_LAST_TIME_OBJECT_COUNT |
7363 | 7370 |
7364 memcpy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); | 7371 memcpy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); |
7365 memcpy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); | 7372 memcpy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); |
7366 ClearObjectStats(); | 7373 ClearObjectStats(); |
7367 } | 7374 } |
7368 | 7375 |
7369 } } // namespace v8::internal | 7376 } } // namespace v8::internal |
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