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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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| 2927 __ lea(rcx, | 2927 __ lea(rcx, |
| 2928 Operand( | 2928 Operand( |
| 2929 rbx, index.reg, index.scale, DescriptorArray::kFirstOffset)); | 2929 rbx, index.reg, index.scale, DescriptorArray::kFirstOffset)); |
| 2930 // Calculate location of the first key name. | 2930 // Calculate location of the first key name. |
| 2931 __ addq(rbx, Immediate(DescriptorArray::kFirstOffset)); | 2931 __ addq(rbx, Immediate(DescriptorArray::kFirstOffset)); |
| 2932 // Loop through all the keys in the descriptor array. If one of these is the | 2932 // Loop through all the keys in the descriptor array. If one of these is the |
| 2933 // internalized string "valueOf" the result is false. | 2933 // internalized string "valueOf" the result is false. |
| 2934 __ jmp(&entry); | 2934 __ jmp(&entry); |
| 2935 __ bind(&loop); | 2935 __ bind(&loop); |
| 2936 __ movq(rdx, FieldOperand(rbx, 0)); | 2936 __ movq(rdx, FieldOperand(rbx, 0)); |
| 2937 __ Cmp(rdx, FACTORY->value_of_string()); | 2937 __ Cmp(rdx, isolate()->factory()->value_of_string()); |
| 2938 __ j(equal, if_false); | 2938 __ j(equal, if_false); |
| 2939 __ addq(rbx, Immediate(DescriptorArray::kDescriptorSize * kPointerSize)); | 2939 __ addq(rbx, Immediate(DescriptorArray::kDescriptorSize * kPointerSize)); |
| 2940 __ bind(&entry); | 2940 __ bind(&entry); |
| 2941 __ cmpq(rbx, rcx); | 2941 __ cmpq(rbx, rcx); |
| 2942 __ j(not_equal, &loop); | 2942 __ j(not_equal, &loop); |
| 2943 | 2943 |
| 2944 __ bind(&done); | 2944 __ bind(&done); |
| 2945 // Reload map as register rbx was used as temporary above. | 2945 // Reload map as register rbx was used as temporary above. |
| 2946 __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset)); | 2946 __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset)); |
| 2947 | 2947 |
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| 4859 *context_length = 0; | 4859 *context_length = 0; |
| 4860 return previous_; | 4860 return previous_; |
| 4861 } | 4861 } |
| 4862 | 4862 |
| 4863 | 4863 |
| 4864 #undef __ | 4864 #undef __ |
| 4865 | 4865 |
| 4866 } } // namespace v8::internal | 4866 } } // namespace v8::internal |
| 4867 | 4867 |
| 4868 #endif // V8_TARGET_ARCH_X64 | 4868 #endif // V8_TARGET_ARCH_X64 |
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