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Issue 751643005: Reland of "Enable inobject double fields unboxing for 64-bit archs." (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fixes Created 6 years 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 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/base/atomicops.h" 7 #include "src/base/atomicops.h"
8 #include "src/base/bits.h" 8 #include "src/base/bits.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/compilation-cache.h" 10 #include "src/compilation-cache.h"
(...skipping 2746 matching lines...) Expand 10 before | Expand all | Expand 10 after
2757 InobjectPropertiesHelper helper(src->map()); 2757 InobjectPropertiesHelper helper(src->map());
2758 bool has_only_tagged_fields = helper.all_fields_tagged(); 2758 bool has_only_tagged_fields = helper.all_fields_tagged();
2759 #endif 2759 #endif
2760 for (int remaining = size / kPointerSize; remaining > 0; remaining--) { 2760 for (int remaining = size / kPointerSize; remaining > 0; remaining--) {
2761 Object* value = Memory::Object_at(src_slot); 2761 Object* value = Memory::Object_at(src_slot);
2762 2762
2763 Memory::Object_at(dst_slot) = value; 2763 Memory::Object_at(dst_slot) = value;
2764 2764
2765 #if V8_DOUBLE_FIELDS_UNBOXING 2765 #if V8_DOUBLE_FIELDS_UNBOXING
2766 if (!may_contain_raw_values && 2766 if (!may_contain_raw_values &&
2767 (has_only_tagged_fields || helper.IsTagged(src_slot - src_addr))) 2767 (has_only_tagged_fields ||
2768 helper.IsTagged(static_cast<int>(src_slot - src_addr))))
2768 #else 2769 #else
2769 if (!may_contain_raw_values) 2770 if (!may_contain_raw_values)
2770 #endif 2771 #endif
2771 { 2772 {
2772 RecordMigratedSlot(value, dst_slot); 2773 RecordMigratedSlot(value, dst_slot);
2773 } 2774 }
2774 2775
2775 src_slot += kPointerSize; 2776 src_slot += kPointerSize;
2776 dst_slot += kPointerSize; 2777 dst_slot += kPointerSize;
2777 } 2778 }
(...skipping 1632 matching lines...) Expand 10 before | Expand all | Expand 10 after
4410 SlotsBuffer* buffer = *buffer_address; 4411 SlotsBuffer* buffer = *buffer_address;
4411 while (buffer != NULL) { 4412 while (buffer != NULL) {
4412 SlotsBuffer* next_buffer = buffer->next(); 4413 SlotsBuffer* next_buffer = buffer->next();
4413 DeallocateBuffer(buffer); 4414 DeallocateBuffer(buffer);
4414 buffer = next_buffer; 4415 buffer = next_buffer;
4415 } 4416 }
4416 *buffer_address = NULL; 4417 *buffer_address = NULL;
4417 } 4418 }
4418 } 4419 }
4419 } // namespace v8::internal 4420 } // namespace v8::internal
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