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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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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2578 Object* value, | 2578 Object* value, |
2579 WriteBarrierMode mode) { | 2579 WriteBarrierMode mode) { |
2580 DCHECK(map() != GetHeap()->fixed_cow_array_map()); | 2580 DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
2581 DCHECK(index >= 0 && index < this->length()); | 2581 DCHECK(index >= 0 && index < this->length()); |
2582 int offset = kHeaderSize + index * kPointerSize; | 2582 int offset = kHeaderSize + index * kPointerSize; |
2583 WRITE_FIELD(this, offset, value); | 2583 WRITE_FIELD(this, offset, value); |
2584 CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); | 2584 CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); |
2585 } | 2585 } |
2586 | 2586 |
2587 | 2587 |
2588 void FixedArray::NoIncrementalWriteBarrierSet(FixedArray* array, | |
2589 int index, | |
2590 Object* value) { | |
2591 DCHECK(array->map() != array->GetHeap()->fixed_cow_array_map()); | |
2592 DCHECK(index >= 0 && index < array->length()); | |
2593 int offset = kHeaderSize + index * kPointerSize; | |
2594 WRITE_FIELD(array, offset, value); | |
2595 Heap* heap = array->GetHeap(); | |
2596 if (heap->InNewSpace(value)) { | |
2597 heap->RecordWrite(array->address(), offset); | |
2598 } | |
2599 } | |
2600 | |
2601 | |
2602 void FixedArray::NoWriteBarrierSet(FixedArray* array, | 2588 void FixedArray::NoWriteBarrierSet(FixedArray* array, |
2603 int index, | 2589 int index, |
2604 Object* value) { | 2590 Object* value) { |
2605 DCHECK(array->map() != array->GetHeap()->fixed_cow_array_map()); | 2591 DCHECK(array->map() != array->GetHeap()->fixed_cow_array_map()); |
2606 DCHECK(index >= 0 && index < array->length()); | 2592 DCHECK(index >= 0 && index < array->length()); |
2607 DCHECK(!array->GetHeap()->InNewSpace(value)); | 2593 DCHECK(!array->GetHeap()->InNewSpace(value)); |
2608 WRITE_FIELD(array, kHeaderSize + index * kPointerSize, value); | 2594 WRITE_FIELD(array, kHeaderSize + index * kPointerSize, value); |
2609 } | 2595 } |
2610 | 2596 |
2611 | 2597 |
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7870 #undef WRITE_INT64_FIELD | 7856 #undef WRITE_INT64_FIELD |
7871 #undef READ_BYTE_FIELD | 7857 #undef READ_BYTE_FIELD |
7872 #undef WRITE_BYTE_FIELD | 7858 #undef WRITE_BYTE_FIELD |
7873 #undef NOBARRIER_READ_BYTE_FIELD | 7859 #undef NOBARRIER_READ_BYTE_FIELD |
7874 #undef NOBARRIER_WRITE_BYTE_FIELD | 7860 #undef NOBARRIER_WRITE_BYTE_FIELD |
7875 | 7861 |
7876 } // namespace internal | 7862 } // namespace internal |
7877 } // namespace v8 | 7863 } // namespace v8 |
7878 | 7864 |
7879 #endif // V8_OBJECTS_INL_H_ | 7865 #endif // V8_OBJECTS_INL_H_ |
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