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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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617 // from being flushed. | 617 // from being flushed. |
618 void PrepareThreadForCodeFlushing(Isolate* isolate, ThreadLocalTop* top); | 618 void PrepareThreadForCodeFlushing(Isolate* isolate, ThreadLocalTop* top); |
619 | 619 |
620 void PrepareForCodeFlushing(); | 620 void PrepareForCodeFlushing(); |
621 | 621 |
622 // Marking operations for objects reachable from roots. | 622 // Marking operations for objects reachable from roots. |
623 void MarkLiveObjects(); | 623 void MarkLiveObjects(); |
624 | 624 |
625 void AfterMarking(); | 625 void AfterMarking(); |
626 | 626 |
| 627 // Marks the object black and pushes it on the marking stack. |
| 628 // This is for non-incremental marking. |
627 INLINE(void MarkObject(HeapObject* obj, MarkBit mark_bit)); | 629 INLINE(void MarkObject(HeapObject* obj, MarkBit mark_bit)); |
628 | 630 |
| 631 // Marks the object black. This is for non-incremental marking. |
629 INLINE(void SetMark(HeapObject* obj, MarkBit mark_bit)); | 632 INLINE(void SetMark(HeapObject* obj, MarkBit mark_bit)); |
630 | 633 |
| 634 // Clears the cache of ICs related to this map. |
| 635 INLINE(void ClearCacheOnMap(Map* map)); |
| 636 |
631 void ProcessNewlyMarkedObject(HeapObject* obj); | 637 void ProcessNewlyMarkedObject(HeapObject* obj); |
632 | 638 |
633 // Creates back pointers for all map transitions, stores them in | 639 // Creates back pointers for all map transitions, stores them in |
634 // the prototype field. The original prototype pointers are restored | 640 // the prototype field. The original prototype pointers are restored |
635 // in ClearNonLiveTransitions(). All JSObject maps | 641 // in ClearNonLiveTransitions(). All JSObject maps |
636 // connected by map transitions have the same prototype object, which | 642 // connected by map transitions have the same prototype object, which |
637 // is why we can use this field temporarily for back pointers. | 643 // is why we can use this field temporarily for back pointers. |
638 void CreateBackPointers(); | 644 void CreateBackPointers(); |
639 | 645 |
640 // Mark a Map and its DescriptorArray together, skipping transitions. | 646 // Mark a Map and its DescriptorArray together, skipping transitions. |
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747 | 753 |
748 friend class Heap; | 754 friend class Heap; |
749 }; | 755 }; |
750 | 756 |
751 | 757 |
752 const char* AllocationSpaceName(AllocationSpace space); | 758 const char* AllocationSpaceName(AllocationSpace space); |
753 | 759 |
754 } } // namespace v8::internal | 760 } } // namespace v8::internal |
755 | 761 |
756 #endif // V8_MARK_COMPACT_H_ | 762 #endif // V8_MARK_COMPACT_H_ |
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