OLD | NEW |
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_HEAP_HEAP_INL_H_ | 5 #ifndef V8_HEAP_HEAP_INL_H_ |
6 #define V8_HEAP_HEAP_INL_H_ | 6 #define V8_HEAP_HEAP_INL_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 | 9 |
10 #include "src/base/platform/platform.h" | 10 #include "src/base/platform/platform.h" |
(...skipping 641 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
652 | 652 |
653 void Heap::ExternalStringTable::ShrinkNewStrings(int position) { | 653 void Heap::ExternalStringTable::ShrinkNewStrings(int position) { |
654 new_space_strings_.Rewind(position); | 654 new_space_strings_.Rewind(position); |
655 #ifdef VERIFY_HEAP | 655 #ifdef VERIFY_HEAP |
656 if (FLAG_verify_heap) { | 656 if (FLAG_verify_heap) { |
657 Verify(); | 657 Verify(); |
658 } | 658 } |
659 #endif | 659 #endif |
660 } | 660 } |
661 | 661 |
662 // static | |
663 int DescriptorLookupCache::Hash(Object* source, Name* name) { | |
664 DCHECK(name->IsUniqueName()); | |
665 // Uses only lower 32 bits if pointers are larger. | |
666 uint32_t source_hash = | |
667 static_cast<uint32_t>(reinterpret_cast<uintptr_t>(source)) >> | |
668 kPointerSizeLog2; | |
669 uint32_t name_hash = name->hash_field(); | |
670 return (source_hash ^ name_hash) % kLength; | |
671 } | |
672 | |
673 int DescriptorLookupCache::Lookup(Map* source, Name* name) { | |
674 int index = Hash(source, name); | |
675 Key& key = keys_[index]; | |
676 if ((key.source == source) && (key.name == name)) return results_[index]; | |
677 return kAbsent; | |
678 } | |
679 | |
680 | |
681 void DescriptorLookupCache::Update(Map* source, Name* name, int result) { | |
682 DCHECK(result != kAbsent); | |
683 int index = Hash(source, name); | |
684 Key& key = keys_[index]; | |
685 key.source = source; | |
686 key.name = name; | |
687 results_[index] = result; | |
688 } | |
689 | |
690 | |
691 void Heap::ClearInstanceofCache() { | 662 void Heap::ClearInstanceofCache() { |
692 set_instanceof_cache_function(Smi::FromInt(0)); | 663 set_instanceof_cache_function(Smi::FromInt(0)); |
693 } | 664 } |
694 | 665 |
695 Oddball* Heap::ToBoolean(bool condition) { | 666 Oddball* Heap::ToBoolean(bool condition) { |
696 return condition ? true_value() : false_value(); | 667 return condition ? true_value() : false_value(); |
697 } | 668 } |
698 | 669 |
699 | 670 |
700 void Heap::CompletelyClearInstanceofCache() { | 671 void Heap::CompletelyClearInstanceofCache() { |
(...skipping 80 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
781 | 752 |
782 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) { | 753 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) { |
783 for (Object** current = start; current < end; current++) { | 754 for (Object** current = start; current < end; current++) { |
784 CHECK((*current)->IsSmi()); | 755 CHECK((*current)->IsSmi()); |
785 } | 756 } |
786 } | 757 } |
787 } // namespace internal | 758 } // namespace internal |
788 } // namespace v8 | 759 } // namespace v8 |
789 | 760 |
790 #endif // V8_HEAP_HEAP_INL_H_ | 761 #endif // V8_HEAP_HEAP_INL_H_ |
OLD | NEW |