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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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| 523 | 523 |
| 524 if (details.type() == CONSTANT) { | 524 if (details.type() == CONSTANT) { |
| 525 Handle<Object> constant(descriptors->GetValue(descriptor), masm->isolate()); | 525 Handle<Object> constant(descriptors->GetValue(descriptor), masm->isolate()); |
| 526 __ CmpObject(value_reg, constant); | 526 __ CmpObject(value_reg, constant); |
| 527 __ j(not_equal, miss_label); | 527 __ j(not_equal, miss_label); |
| 528 } else if (representation.IsSmi()) { | 528 } else if (representation.IsSmi()) { |
| 529 __ JumpIfNotSmi(value_reg, miss_label); | 529 __ JumpIfNotSmi(value_reg, miss_label); |
| 530 } else if (representation.IsHeapObject()) { | 530 } else if (representation.IsHeapObject()) { |
| 531 HeapType* field_type = descriptors->GetFieldType(descriptor); | 531 HeapType* field_type = descriptors->GetFieldType(descriptor); |
| 532 if (field_type->IsClass()) { | 532 if (field_type->IsClass()) { |
| 533 __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK); | 533 __ CheckMap(value_reg, field_type->AsClass()->Map(), |
| 534 miss_label, DO_SMI_CHECK); |
| 534 } else { | 535 } else { |
| 535 ASSERT(HeapType::Any()->Is(field_type)); | 536 ASSERT(HeapType::Any()->Is(field_type)); |
| 536 __ JumpIfSmi(value_reg, miss_label); | 537 __ JumpIfSmi(value_reg, miss_label); |
| 537 } | 538 } |
| 538 } else if (representation.IsDouble()) { | 539 } else if (representation.IsDouble()) { |
| 539 Label do_store, heap_number; | 540 Label do_store, heap_number; |
| 540 __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow); | 541 __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow); |
| 541 | 542 |
| 542 __ JumpIfNotSmi(value_reg, &heap_number); | 543 __ JumpIfNotSmi(value_reg, &heap_number); |
| 543 __ SmiUntag(value_reg); | 544 __ SmiUntag(value_reg); |
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| 699 // object and the number of in-object properties is not going to change. | 700 // object and the number of in-object properties is not going to change. |
| 700 index -= object->map()->inobject_properties(); | 701 index -= object->map()->inobject_properties(); |
| 701 | 702 |
| 702 Representation representation = lookup->representation(); | 703 Representation representation = lookup->representation(); |
| 703 ASSERT(!representation.IsNone()); | 704 ASSERT(!representation.IsNone()); |
| 704 if (representation.IsSmi()) { | 705 if (representation.IsSmi()) { |
| 705 __ JumpIfNotSmi(value_reg, miss_label); | 706 __ JumpIfNotSmi(value_reg, miss_label); |
| 706 } else if (representation.IsHeapObject()) { | 707 } else if (representation.IsHeapObject()) { |
| 707 HeapType* field_type = lookup->GetFieldType(); | 708 HeapType* field_type = lookup->GetFieldType(); |
| 708 if (field_type->IsClass()) { | 709 if (field_type->IsClass()) { |
| 709 __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK); | 710 __ CheckMap(value_reg, field_type->AsClass()->Map(), |
| 711 miss_label, DO_SMI_CHECK); |
| 710 } else { | 712 } else { |
| 711 ASSERT(HeapType::Any()->Is(field_type)); | 713 ASSERT(HeapType::Any()->Is(field_type)); |
| 712 __ JumpIfSmi(value_reg, miss_label); | 714 __ JumpIfSmi(value_reg, miss_label); |
| 713 } | 715 } |
| 714 } else if (representation.IsDouble()) { | 716 } else if (representation.IsDouble()) { |
| 715 // Load the double storage. | 717 // Load the double storage. |
| 716 if (index < 0) { | 718 if (index < 0) { |
| 717 int offset = object->map()->instance_size() + (index * kPointerSize); | 719 int offset = object->map()->instance_size() + (index * kPointerSize); |
| 718 __ mov(scratch1, FieldOperand(receiver_reg, offset)); | 720 __ mov(scratch1, FieldOperand(receiver_reg, offset)); |
| 719 } else { | 721 } else { |
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| 829 // Make sure there's no overlap between holder and object registers. | 831 // Make sure there's no overlap between holder and object registers. |
| 830 ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); | 832 ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 831 ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) | 833 ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 832 && !scratch2.is(scratch1)); | 834 && !scratch2.is(scratch1)); |
| 833 | 835 |
| 834 // Keep track of the current object in register reg. | 836 // Keep track of the current object in register reg. |
| 835 Register reg = object_reg; | 837 Register reg = object_reg; |
| 836 int depth = 0; | 838 int depth = 0; |
| 837 | 839 |
| 838 Handle<JSObject> current = Handle<JSObject>::null(); | 840 Handle<JSObject> current = Handle<JSObject>::null(); |
| 839 if (type->IsConstant()) current = Handle<JSObject>::cast(type->AsConstant()); | 841 if (type->IsConstant()) current = |
| 842 Handle<JSObject>::cast(type->AsConstant()->Value()); |
| 840 Handle<JSObject> prototype = Handle<JSObject>::null(); | 843 Handle<JSObject> prototype = Handle<JSObject>::null(); |
| 841 Handle<Map> current_map = receiver_map; | 844 Handle<Map> current_map = receiver_map; |
| 842 Handle<Map> holder_map(holder->map()); | 845 Handle<Map> holder_map(holder->map()); |
| 843 // Traverse the prototype chain and check the maps in the prototype chain for | 846 // Traverse the prototype chain and check the maps in the prototype chain for |
| 844 // fast and global objects or do negative lookup for normal objects. | 847 // fast and global objects or do negative lookup for normal objects. |
| 845 while (!current_map.is_identical_to(holder_map)) { | 848 while (!current_map.is_identical_to(holder_map)) { |
| 846 ++depth; | 849 ++depth; |
| 847 | 850 |
| 848 // Only global objects and objects that do not require access | 851 // Only global objects and objects that do not require access |
| 849 // checks are allowed in stubs. | 852 // checks are allowed in stubs. |
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| 1547 // ----------------------------------- | 1550 // ----------------------------------- |
| 1548 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 1551 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
| 1549 } | 1552 } |
| 1550 | 1553 |
| 1551 | 1554 |
| 1552 #undef __ | 1555 #undef __ |
| 1553 | 1556 |
| 1554 } } // namespace v8::internal | 1557 } } // namespace v8::internal |
| 1555 | 1558 |
| 1556 #endif // V8_TARGET_ARCH_IA32 | 1559 #endif // V8_TARGET_ARCH_IA32 |
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