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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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534 // See the comment in SetExpectedNofProperties. | 534 // See the comment in SetExpectedNofProperties. |
535 if (shared->live_objects_may_exist()) return; | 535 if (shared->live_objects_may_exist()) return; |
536 | 536 |
537 // If no properties are added in the constructor, they are more likely | 537 // If no properties are added in the constructor, they are more likely |
538 // to be added later. | 538 // to be added later. |
539 if (estimate == 0) estimate = 2; | 539 if (estimate == 0) estimate = 2; |
540 | 540 |
541 // TODO(yangguo): check whether those heuristics are still up-to-date. | 541 // TODO(yangguo): check whether those heuristics are still up-to-date. |
542 // We do not shrink objects that go into a snapshot (yet), so we adjust | 542 // We do not shrink objects that go into a snapshot (yet), so we adjust |
543 // the estimate conservatively. | 543 // the estimate conservatively. |
544 if (Serializer::enabled()) { | 544 if (Serializer::enabled(shared->GetIsolate())) { |
545 estimate += 2; | 545 estimate += 2; |
546 } else if (FLAG_clever_optimizations) { | 546 } else if (FLAG_clever_optimizations) { |
547 // Inobject slack tracking will reclaim redundant inobject space later, | 547 // Inobject slack tracking will reclaim redundant inobject space later, |
548 // so we can afford to adjust the estimate generously. | 548 // so we can afford to adjust the estimate generously. |
549 estimate += 8; | 549 estimate += 8; |
550 } else { | 550 } else { |
551 estimate += 3; | 551 estimate += 3; |
552 } | 552 } |
553 | 553 |
554 shared->set_expected_nof_properties(estimate); | 554 shared->set_expected_nof_properties(estimate); |
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1302 AllowHandleDereference allow_deref; | 1302 AllowHandleDereference allow_deref; |
1303 bool tracing_on = info()->IsStub() | 1303 bool tracing_on = info()->IsStub() |
1304 ? FLAG_trace_hydrogen_stubs | 1304 ? FLAG_trace_hydrogen_stubs |
1305 : (FLAG_trace_hydrogen && | 1305 : (FLAG_trace_hydrogen && |
1306 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); | 1306 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); |
1307 return (tracing_on && | 1307 return (tracing_on && |
1308 OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); | 1308 OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); |
1309 } | 1309 } |
1310 | 1310 |
1311 } } // namespace v8::internal | 1311 } } // namespace v8::internal |
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