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Issue 15700007: Refacturing BuildEmitDeepCopy. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 6 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 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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492 492
493 // Nothing to do, just change the map. 493 // Nothing to do, just change the map.
494 494
495 if_builder.Else(); 495 if_builder.Else();
496 496
497 HInstruction* elements = AddLoadElements(js_array); 497 HInstruction* elements = AddLoadElements(js_array);
498 498
499 HInstruction* elements_length = 499 HInstruction* elements_length =
500 AddInstruction(new(zone) HFixedArrayBaseLength(elements)); 500 AddInstruction(new(zone) HFixedArrayBaseLength(elements));
501 501
502 HValue* new_elements = 502 HValue* new_elements = BuildAllocateElementsAndInitializeElementsHeader(
503 BuildAllocateAndInitializeElements(context(), to_kind, elements_length); 503 context(), to_kind, elements_length);
504 504
505 BuildCopyElements(context(), elements, 505 BuildCopyElements(context(), elements,
506 casted_stub()->from_kind(), new_elements, 506 casted_stub()->from_kind(), new_elements,
507 to_kind, array_length, elements_length); 507 to_kind, array_length, elements_length);
508 508
509 AddStore(js_array, HObjectAccess::ForElementsPointer(), new_elements); 509 AddStore(js_array, HObjectAccess::ForElementsPointer(), new_elements);
510 510
511 if_builder.End(); 511 if_builder.End();
512 512
513 AddStore(js_array, HObjectAccess::ForMap(), map); 513 AddStore(js_array, HObjectAccess::ForMap(), map);
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670 ? graph()->GetConstant1() 670 ? graph()->GetConstant1()
671 : graph()->GetConstantUndefined(); 671 : graph()->GetConstantUndefined();
672 } 672 }
673 673
674 674
675 Handle<Code> CompareNilICStub::GenerateCode() { 675 Handle<Code> CompareNilICStub::GenerateCode() {
676 return DoGenerateCode(this); 676 return DoGenerateCode(this);
677 } 677 }
678 678
679 } } // namespace v8::internal 679 } } // namespace v8::internal
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