OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #ifndef V8_HEAP_MARK_COMPACT_H_ | 5 #ifndef V8_HEAP_MARK_COMPACT_H_ |
6 #define V8_HEAP_MARK_COMPACT_H_ | 6 #define V8_HEAP_MARK_COMPACT_H_ |
7 | 7 |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/heap/spaces.h" | 9 #include "src/heap/spaces.h" |
10 | 10 |
(...skipping 762 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
773 // - Objects reachable due to host application logic like object groups | 773 // - Objects reachable due to host application logic like object groups |
774 // or implicit references' groups. | 774 // or implicit references' groups. |
775 void ProcessEphemeralMarking(ObjectVisitor* visitor, | 775 void ProcessEphemeralMarking(ObjectVisitor* visitor, |
776 bool only_process_harmony_weak_collections); | 776 bool only_process_harmony_weak_collections); |
777 | 777 |
778 // If the call-site of the top optimized code was not prepared for | 778 // If the call-site of the top optimized code was not prepared for |
779 // deoptimization, then treat the maps in the code as strong pointers, | 779 // deoptimization, then treat the maps in the code as strong pointers, |
780 // otherwise a map can die and deoptimize the code. | 780 // otherwise a map can die and deoptimize the code. |
781 void ProcessTopOptimizedFrame(ObjectVisitor* visitor); | 781 void ProcessTopOptimizedFrame(ObjectVisitor* visitor); |
782 | 782 |
| 783 // Retain dying maps for <FLAG_retain_maps_for_n_gc> garbage collections to |
| 784 // increase chances of reusing of map transition tree in future. |
| 785 void RetainMaps(ObjectVisitor* visitor); |
| 786 |
783 // Mark objects reachable (transitively) from objects in the marking | 787 // Mark objects reachable (transitively) from objects in the marking |
784 // stack. This function empties the marking stack, but may leave | 788 // stack. This function empties the marking stack, but may leave |
785 // overflowed objects in the heap, in which case the marking stack's | 789 // overflowed objects in the heap, in which case the marking stack's |
786 // overflow flag will be set. | 790 // overflow flag will be set. |
787 void EmptyMarkingDeque(); | 791 void EmptyMarkingDeque(); |
788 | 792 |
789 // Refill the marking stack with overflowed objects from the heap. This | 793 // Refill the marking stack with overflowed objects from the heap. This |
790 // function either leaves the marking stack full or clears the overflow | 794 // function either leaves the marking stack full or clears the overflow |
791 // flag on the marking stack. | 795 // flag on the marking stack. |
792 void RefillMarkingDeque(); | 796 void RefillMarkingDeque(); |
(...skipping 160 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
953 private: | 957 private: |
954 MarkCompactCollector* collector_; | 958 MarkCompactCollector* collector_; |
955 }; | 959 }; |
956 | 960 |
957 | 961 |
958 const char* AllocationSpaceName(AllocationSpace space); | 962 const char* AllocationSpaceName(AllocationSpace space); |
959 } | 963 } |
960 } // namespace v8::internal | 964 } // namespace v8::internal |
961 | 965 |
962 #endif // V8_HEAP_MARK_COMPACT_H_ | 966 #endif // V8_HEAP_MARK_COMPACT_H_ |
OLD | NEW |