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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 // 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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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1321 return heap; | 1321 return heap; |
1322 } | 1322 } |
1323 | 1323 |
1324 | 1324 |
1325 Isolate* HeapObject::GetIsolate() { | 1325 Isolate* HeapObject::GetIsolate() { |
1326 return GetHeap()->isolate(); | 1326 return GetHeap()->isolate(); |
1327 } | 1327 } |
1328 | 1328 |
1329 | 1329 |
1330 Map* HeapObject::map() { | 1330 Map* HeapObject::map() { |
| 1331 #ifdef DEBUG |
| 1332 // Clear mark potentially added by PathTracer. |
| 1333 uintptr_t raw_value = |
| 1334 map_word().ToRawValue() & ~static_cast<uintptr_t>(PathTracer::kMarkTag); |
| 1335 return MapWord::FromRawValue(raw_value).ToMap(); |
| 1336 #else |
1331 return map_word().ToMap(); | 1337 return map_word().ToMap(); |
| 1338 #endif |
1332 } | 1339 } |
1333 | 1340 |
1334 | 1341 |
1335 void HeapObject::set_map(Map* value) { | 1342 void HeapObject::set_map(Map* value) { |
1336 set_map_word(MapWord::FromMap(value)); | 1343 set_map_word(MapWord::FromMap(value)); |
1337 if (value != NULL) { | 1344 if (value != NULL) { |
1338 // TODO(1600) We are passing NULL as a slot because maps can never be on | 1345 // TODO(1600) We are passing NULL as a slot because maps can never be on |
1339 // evacuation candidate. | 1346 // evacuation candidate. |
1340 value->GetHeap()->incremental_marking()->RecordWrite(this, NULL, value); | 1347 value->GetHeap()->incremental_marking()->RecordWrite(this, NULL, value); |
1341 } | 1348 } |
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6837 #undef READ_SHORT_FIELD | 6844 #undef READ_SHORT_FIELD |
6838 #undef WRITE_SHORT_FIELD | 6845 #undef WRITE_SHORT_FIELD |
6839 #undef READ_BYTE_FIELD | 6846 #undef READ_BYTE_FIELD |
6840 #undef WRITE_BYTE_FIELD | 6847 #undef WRITE_BYTE_FIELD |
6841 #undef NOBARRIER_READ_BYTE_FIELD | 6848 #undef NOBARRIER_READ_BYTE_FIELD |
6842 #undef NOBARRIER_WRITE_BYTE_FIELD | 6849 #undef NOBARRIER_WRITE_BYTE_FIELD |
6843 | 6850 |
6844 } } // namespace v8::internal | 6851 } } // namespace v8::internal |
6845 | 6852 |
6846 #endif // V8_OBJECTS_INL_H_ | 6853 #endif // V8_OBJECTS_INL_H_ |
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