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Issue 1062163005: track global accesses to constant types (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: comment out STORE_TO_INITIALIZED_ENTRY Created 5 years, 8 months ago
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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 #ifndef V8_OBJECTS_H_ 5 #ifndef V8_OBJECTS_H_
6 #define V8_OBJECTS_H_ 6 #define V8_OBJECTS_H_
7 7
8 #include <iosfwd> 8 #include <iosfwd>
9 9
10 #include "src/allocation.h" 10 #include "src/allocation.h"
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9816 9816
9817 9817
9818 class PropertyCell : public HeapObject { 9818 class PropertyCell : public HeapObject {
9819 public: 9819 public:
9820 // [value]: value of the global property. 9820 // [value]: value of the global property.
9821 DECL_ACCESSORS(value, Object) 9821 DECL_ACCESSORS(value, Object)
9822 // [dependent_code]: dependent code that depends on the type of the global 9822 // [dependent_code]: dependent code that depends on the type of the global
9823 // property. 9823 // property.
9824 DECL_ACCESSORS(dependent_code, DependentCode) 9824 DECL_ACCESSORS(dependent_code, DependentCode)
9825 9825
9826 PropertyCellConstantType GetConstantType();
9827
9826 // Computes the new type of the cell's contents for the given value, but 9828 // Computes the new type of the cell's contents for the given value, but
9827 // without actually modifying the details. 9829 // without actually modifying the details.
9828 static PropertyCellType UpdatedType(Handle<PropertyCell> cell, 9830 static PropertyCellType UpdatedType(Handle<PropertyCell> cell,
9829 Handle<Object> value, 9831 Handle<Object> value,
9830 PropertyDetails details); 9832 PropertyDetails details);
9831 static Handle<Object> UpdateCell(Handle<NameDictionary> dictionary, int entry, 9833 static Handle<Object> UpdateCell(Handle<NameDictionary> dictionary, int entry,
9832 Handle<Object> value, 9834 Handle<Object> value,
9833 PropertyDetails details); 9835 PropertyDetails details);
9834 9836
9835 static Handle<PropertyCell> InvalidateEntry(Handle<NameDictionary> dictionary, 9837 static Handle<PropertyCell> InvalidateEntry(Handle<NameDictionary> dictionary,
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11091 } else { 11093 } else {
11092 value &= ~(1 << bit_position); 11094 value &= ~(1 << bit_position);
11093 } 11095 }
11094 return value; 11096 return value;
11095 } 11097 }
11096 }; 11098 };
11097 11099
11098 } } // namespace v8::internal 11100 } } // namespace v8::internal
11099 11101
11100 #endif // V8_OBJECTS_H_ 11102 #endif // V8_OBJECTS_H_
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