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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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1426 int number_of_slow_used_elements_; | 1426 int number_of_slow_used_elements_; |
1427 int number_of_slow_unused_elements_; | 1427 int number_of_slow_unused_elements_; |
1428 }; | 1428 }; |
1429 | 1429 |
1430 void IncrementSpillStatistics(SpillInformation* info); | 1430 void IncrementSpillStatistics(SpillInformation* info); |
1431 #endif | 1431 #endif |
1432 Object* SlowReverseLookup(Object* value); | 1432 Object* SlowReverseLookup(Object* value); |
1433 | 1433 |
1434 static const uint32_t kMaxGap = 1024; | 1434 static const uint32_t kMaxGap = 1024; |
1435 static const int kMaxFastElementsLength = 5000; | 1435 static const int kMaxFastElementsLength = 5000; |
| 1436 static const int kInitialMaxFastElementArray = 100000; |
1436 static const int kMaxFastProperties = 8; | 1437 static const int kMaxFastProperties = 8; |
1437 static const int kMaxInstanceSize = 255 * kPointerSize; | 1438 static const int kMaxInstanceSize = 255 * kPointerSize; |
1438 // When extending the backing storage for property values, we increase | 1439 // When extending the backing storage for property values, we increase |
1439 // its size by more than the 1 entry necessary, so sequentially adding fields | 1440 // its size by more than the 1 entry necessary, so sequentially adding fields |
1440 // to the same object requires fewer allocations and copies. | 1441 // to the same object requires fewer allocations and copies. |
1441 static const int kFieldsAdded = 3; | 1442 static const int kFieldsAdded = 3; |
1442 | 1443 |
1443 // Layout description. | 1444 // Layout description. |
1444 static const int kPropertiesOffset = HeapObject::kHeaderSize; | 1445 static const int kPropertiesOffset = HeapObject::kHeaderSize; |
1445 static const int kElementsOffset = kPropertiesOffset + kPointerSize; | 1446 static const int kElementsOffset = kPropertiesOffset + kPointerSize; |
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4279 } else { | 4280 } else { |
4280 value &= ~(1 << bit_position); | 4281 value &= ~(1 << bit_position); |
4281 } | 4282 } |
4282 return value; | 4283 return value; |
4283 } | 4284 } |
4284 }; | 4285 }; |
4285 | 4286 |
4286 } } // namespace v8::internal | 4287 } } // namespace v8::internal |
4287 | 4288 |
4288 #endif // V8_OBJECTS_H_ | 4289 #endif // V8_OBJECTS_H_ |
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