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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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| 267 return (FLAG_use_gvn && FLAG_use_allocation_folding) || | 267 return (FLAG_use_gvn && FLAG_use_allocation_folding) || |
| 268 reinterpret_cast<Map*>(elements()) != | 268 reinterpret_cast<Map*>(elements()) != |
| 269 GetHeap()->one_pointer_filler_map(); | 269 GetHeap()->one_pointer_filler_map(); |
| 270 } | 270 } |
| 271 | 271 |
| 272 | 272 |
| 273 void JSObject::JSObjectVerify() { | 273 void JSObject::JSObjectVerify() { |
| 274 VerifyHeapPointer(properties()); | 274 VerifyHeapPointer(properties()); |
| 275 VerifyHeapPointer(elements()); | 275 VerifyHeapPointer(elements()); |
| 276 | 276 |
| 277 if (GetElementsKind() == NON_STRICT_ARGUMENTS_ELEMENTS) { | 277 if (GetElementsKind() == SLOPPY_ARGUMENTS_ELEMENTS) { |
| 278 CHECK(this->elements()->IsFixedArray()); | 278 CHECK(this->elements()->IsFixedArray()); |
| 279 CHECK_GE(this->elements()->length(), 2); | 279 CHECK_GE(this->elements()->length(), 2); |
| 280 } | 280 } |
| 281 | 281 |
| 282 if (HasFastProperties()) { | 282 if (HasFastProperties()) { |
| 283 CHECK_EQ(map()->unused_property_fields(), | 283 CHECK_EQ(map()->unused_property_fields(), |
| 284 (map()->inobject_properties() + properties()->length() - | 284 (map()->inobject_properties() + properties()->length() - |
| 285 map()->NextFreePropertyIndex())); | 285 map()->NextFreePropertyIndex())); |
| 286 DescriptorArray* descriptors = map()->instance_descriptors(); | 286 DescriptorArray* descriptors = map()->instance_descriptors(); |
| 287 for (int i = 0; i < map()->NumberOfOwnDescriptors(); i++) { | 287 for (int i = 0; i < map()->NumberOfOwnDescriptors(); i++) { |
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| 1046 info->number_of_fast_used_elements_ += e->length(); | 1046 info->number_of_fast_used_elements_ += e->length(); |
| 1047 break; | 1047 break; |
| 1048 } | 1048 } |
| 1049 case DICTIONARY_ELEMENTS: { | 1049 case DICTIONARY_ELEMENTS: { |
| 1050 SeededNumberDictionary* dict = element_dictionary(); | 1050 SeededNumberDictionary* dict = element_dictionary(); |
| 1051 info->number_of_slow_used_elements_ += dict->NumberOfElements(); | 1051 info->number_of_slow_used_elements_ += dict->NumberOfElements(); |
| 1052 info->number_of_slow_unused_elements_ += | 1052 info->number_of_slow_unused_elements_ += |
| 1053 dict->Capacity() - dict->NumberOfElements(); | 1053 dict->Capacity() - dict->NumberOfElements(); |
| 1054 break; | 1054 break; |
| 1055 } | 1055 } |
| 1056 case NON_STRICT_ARGUMENTS_ELEMENTS: | 1056 case SLOPPY_ARGUMENTS_ELEMENTS: |
| 1057 break; | 1057 break; |
| 1058 } | 1058 } |
| 1059 } | 1059 } |
| 1060 | 1060 |
| 1061 | 1061 |
| 1062 void JSObject::SpillInformation::Clear() { | 1062 void JSObject::SpillInformation::Clear() { |
| 1063 number_of_objects_ = 0; | 1063 number_of_objects_ = 0; |
| 1064 number_of_objects_with_fast_properties_ = 0; | 1064 number_of_objects_with_fast_properties_ = 0; |
| 1065 number_of_objects_with_fast_elements_ = 0; | 1065 number_of_objects_with_fast_elements_ = 0; |
| 1066 number_of_fast_used_fields_ = 0; | 1066 number_of_fast_used_fields_ = 0; |
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| 1150 for (int i = 0; i < number_of_transitions(); ++i) { | 1150 for (int i = 0; i < number_of_transitions(); ++i) { |
| 1151 if (!CheckOneBackPointer(current_map, GetTarget(i))) return false; | 1151 if (!CheckOneBackPointer(current_map, GetTarget(i))) return false; |
| 1152 } | 1152 } |
| 1153 return true; | 1153 return true; |
| 1154 } | 1154 } |
| 1155 | 1155 |
| 1156 | 1156 |
| 1157 #endif // DEBUG | 1157 #endif // DEBUG |
| 1158 | 1158 |
| 1159 } } // namespace v8::internal | 1159 } } // namespace v8::internal |
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