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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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| 4661 // object we've reached through the prototype chain. | 4661 // object we've reached through the prototype chain. |
| 4662 cmpq(empty_fixed_array_value, | 4662 cmpq(empty_fixed_array_value, |
| 4663 FieldOperand(rcx, JSObject::kElementsOffset)); | 4663 FieldOperand(rcx, JSObject::kElementsOffset)); |
| 4664 j(not_equal, call_runtime); | 4664 j(not_equal, call_runtime); |
| 4665 | 4665 |
| 4666 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); | 4666 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); |
| 4667 cmpq(rcx, null_value); | 4667 cmpq(rcx, null_value); |
| 4668 j(not_equal, &next); | 4668 j(not_equal, &next); |
| 4669 } | 4669 } |
| 4670 | 4670 |
| 4671 void MacroAssembler::TestJSArrayForAllocationSiteInfo( | 4671 void MacroAssembler::TestJSArrayForAllocationMemento( |
| 4672 Register receiver_reg, | 4672 Register receiver_reg, |
| 4673 Register scratch_reg) { | 4673 Register scratch_reg) { |
| 4674 Label no_info_available; | 4674 Label no_memento_available; |
| 4675 ExternalReference new_space_start = | 4675 ExternalReference new_space_start = |
| 4676 ExternalReference::new_space_start(isolate()); | 4676 ExternalReference::new_space_start(isolate()); |
| 4677 ExternalReference new_space_allocation_top = | 4677 ExternalReference new_space_allocation_top = |
| 4678 ExternalReference::new_space_allocation_top_address(isolate()); | 4678 ExternalReference::new_space_allocation_top_address(isolate()); |
| 4679 | 4679 |
| 4680 lea(scratch_reg, Operand(receiver_reg, | 4680 lea(scratch_reg, Operand(receiver_reg, |
| 4681 JSArray::kSize + AllocationSiteInfo::kSize - kHeapObjectTag)); | 4681 JSArray::kSize + AllocationMemento::kSize - kHeapObjectTag)); |
| 4682 movq(kScratchRegister, new_space_start); | 4682 movq(kScratchRegister, new_space_start); |
| 4683 cmpq(scratch_reg, kScratchRegister); | 4683 cmpq(scratch_reg, kScratchRegister); |
| 4684 j(less, &no_info_available); | 4684 j(less, &no_memento_available); |
| 4685 cmpq(scratch_reg, ExternalOperand(new_space_allocation_top)); | 4685 cmpq(scratch_reg, ExternalOperand(new_space_allocation_top)); |
| 4686 j(greater, &no_info_available); | 4686 j(greater, &no_memento_available); |
| 4687 CompareRoot(MemOperand(scratch_reg, -AllocationSiteInfo::kSize), | 4687 CompareRoot(MemOperand(scratch_reg, -AllocationMemento::kSize), |
| 4688 Heap::kAllocationSiteInfoMapRootIndex); | 4688 Heap::kAllocationMementoMapRootIndex); |
| 4689 bind(&no_info_available); | 4689 bind(&no_memento_available); |
| 4690 } | 4690 } |
| 4691 | 4691 |
| 4692 | 4692 |
| 4693 } } // namespace v8::internal | 4693 } } // namespace v8::internal |
| 4694 | 4694 |
| 4695 #endif // V8_TARGET_ARCH_X64 | 4695 #endif // V8_TARGET_ARCH_X64 |
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