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Issue 1477003003: Revert of Tenure descriptor arrays. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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 #include "src/objects.h" 5 #include "src/objects.h"
6 6
7 #include <cmath> 7 #include <cmath>
8 #include <iomanip> 8 #include <iomanip>
9 #include <sstream> 9 #include <sstream>
10 10
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9816 9816
9817 Handle<DescriptorArray> DescriptorArray::Allocate(Isolate* isolate, 9817 Handle<DescriptorArray> DescriptorArray::Allocate(Isolate* isolate,
9818 int number_of_descriptors, 9818 int number_of_descriptors,
9819 int slack) { 9819 int slack) {
9820 DCHECK(0 <= number_of_descriptors); 9820 DCHECK(0 <= number_of_descriptors);
9821 Factory* factory = isolate->factory(); 9821 Factory* factory = isolate->factory();
9822 // Do not use DescriptorArray::cast on incomplete object. 9822 // Do not use DescriptorArray::cast on incomplete object.
9823 int size = number_of_descriptors + slack; 9823 int size = number_of_descriptors + slack;
9824 if (size == 0) return factory->empty_descriptor_array(); 9824 if (size == 0) return factory->empty_descriptor_array();
9825 // Allocate the array of keys. 9825 // Allocate the array of keys.
9826 Handle<FixedArray> result = factory->NewFixedArray(LengthFor(size), TENURED); 9826 Handle<FixedArray> result = factory->NewFixedArray(LengthFor(size));
9827 9827
9828 result->set(kDescriptorLengthIndex, Smi::FromInt(number_of_descriptors)); 9828 result->set(kDescriptorLengthIndex, Smi::FromInt(number_of_descriptors));
9829 result->set(kEnumCacheIndex, Smi::FromInt(0)); 9829 result->set(kEnumCacheIndex, Smi::FromInt(0));
9830 return Handle<DescriptorArray>::cast(result); 9830 return Handle<DescriptorArray>::cast(result);
9831 } 9831 }
9832 9832
9833 9833
9834 void DescriptorArray::ClearEnumCache() { 9834 void DescriptorArray::ClearEnumCache() {
9835 set(kEnumCacheIndex, Smi::FromInt(0)); 9835 set(kEnumCacheIndex, Smi::FromInt(0));
9836 } 9836 }
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18568 if (cell->value() != *new_value) { 18568 if (cell->value() != *new_value) {
18569 cell->set_value(*new_value); 18569 cell->set_value(*new_value);
18570 Isolate* isolate = cell->GetIsolate(); 18570 Isolate* isolate = cell->GetIsolate();
18571 cell->dependent_code()->DeoptimizeDependentCodeGroup( 18571 cell->dependent_code()->DeoptimizeDependentCodeGroup(
18572 isolate, DependentCode::kPropertyCellChangedGroup); 18572 isolate, DependentCode::kPropertyCellChangedGroup);
18573 } 18573 }
18574 } 18574 }
18575 18575
18576 } // namespace internal 18576 } // namespace internal
18577 } // namespace v8 18577 } // namespace v8
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