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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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573 rax, | 573 rax, |
574 rcx, | 574 rcx, |
575 rbx, | 575 rbx, |
576 rax, | 576 rax, |
577 NULL, | 577 NULL, |
578 &slow); | 578 &slow); |
579 __ IncrementCounter(&Counters::keyed_load_generic_smi, 1); | 579 __ IncrementCounter(&Counters::keyed_load_generic_smi, 1); |
580 __ ret(0); | 580 __ ret(0); |
581 | 581 |
582 __ bind(&check_pixel_array); | 582 __ bind(&check_pixel_array); |
583 // Check whether the elements object is a pixel array. | 583 GenerateFastPixelArrayLoad(masm, |
584 // rdx: receiver | 584 rdx, |
585 // rax: key | 585 rax, |
586 __ movq(rcx, FieldOperand(rdx, JSObject::kElementsOffset)); | 586 rcx, |
587 __ SmiToInteger32(rbx, rax); // Used on both directions of next branch. | 587 rbx, |
588 __ CompareRoot(FieldOperand(rcx, HeapObject::kMapOffset), | 588 rax, |
589 Heap::kPixelArrayMapRootIndex); | 589 &check_number_dictionary, |
590 __ j(not_equal, &check_number_dictionary); | 590 NULL, |
591 __ cmpl(rbx, FieldOperand(rcx, PixelArray::kLengthOffset)); | 591 &slow); |
592 __ j(above_equal, &slow); | |
593 __ movq(rax, FieldOperand(rcx, PixelArray::kExternalPointerOffset)); | |
594 __ movzxbq(rax, Operand(rax, rbx, times_1, 0)); | |
595 __ Integer32ToSmi(rax, rax); | |
596 __ ret(0); | |
597 | 592 |
598 __ bind(&check_number_dictionary); | 593 __ bind(&check_number_dictionary); |
599 // Check whether the elements is a number dictionary. | 594 // Check whether the elements is a number dictionary. |
600 // rdx: receiver | 595 // rdx: receiver |
601 // rax: key | 596 // rax: key |
602 // rbx: key as untagged int32 | 597 // rbx: key as untagged int32 |
603 // rcx: elements | 598 // rcx: elements |
604 __ CompareRoot(FieldOperand(rcx, HeapObject::kMapOffset), | 599 __ CompareRoot(FieldOperand(rcx, HeapObject::kMapOffset), |
605 Heap::kHashTableMapRootIndex); | 600 Heap::kHashTableMapRootIndex); |
606 __ j(not_equal, &slow); | 601 __ j(not_equal, &slow); |
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1703 } | 1698 } |
1704 | 1699 |
1705 void PatchInlinedSmiCode(Address address) { | 1700 void PatchInlinedSmiCode(Address address) { |
1706 UNIMPLEMENTED(); | 1701 UNIMPLEMENTED(); |
1707 } | 1702 } |
1708 | 1703 |
1709 | 1704 |
1710 } } // namespace v8::internal | 1705 } } // namespace v8::internal |
1711 | 1706 |
1712 #endif // V8_TARGET_ARCH_X64 | 1707 #endif // V8_TARGET_ARCH_X64 |
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