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Issue 237963016: Revert "Implement structural function and array types" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 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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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()->Map(), 533 __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
534 miss_label, DO_SMI_CHECK);
535 } else { 534 } else {
536 ASSERT(HeapType::Any()->Is(field_type)); 535 ASSERT(HeapType::Any()->Is(field_type));
537 __ JumpIfSmi(value_reg, miss_label); 536 __ JumpIfSmi(value_reg, miss_label);
538 } 537 }
539 } else if (representation.IsDouble()) { 538 } else if (representation.IsDouble()) {
540 Label do_store, heap_number; 539 Label do_store, heap_number;
541 __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow); 540 __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow);
542 541
543 __ JumpIfNotSmi(value_reg, &heap_number); 542 __ JumpIfNotSmi(value_reg, &heap_number);
544 __ SmiUntag(value_reg); 543 __ SmiUntag(value_reg);
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700 // object and the number of in-object properties is not going to change. 699 // object and the number of in-object properties is not going to change.
701 index -= object->map()->inobject_properties(); 700 index -= object->map()->inobject_properties();
702 701
703 Representation representation = lookup->representation(); 702 Representation representation = lookup->representation();
704 ASSERT(!representation.IsNone()); 703 ASSERT(!representation.IsNone());
705 if (representation.IsSmi()) { 704 if (representation.IsSmi()) {
706 __ JumpIfNotSmi(value_reg, miss_label); 705 __ JumpIfNotSmi(value_reg, miss_label);
707 } else if (representation.IsHeapObject()) { 706 } else if (representation.IsHeapObject()) {
708 HeapType* field_type = lookup->GetFieldType(); 707 HeapType* field_type = lookup->GetFieldType();
709 if (field_type->IsClass()) { 708 if (field_type->IsClass()) {
710 __ CheckMap(value_reg, field_type->AsClass()->Map(), 709 __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
711 miss_label, DO_SMI_CHECK);
712 } else { 710 } else {
713 ASSERT(HeapType::Any()->Is(field_type)); 711 ASSERT(HeapType::Any()->Is(field_type));
714 __ JumpIfSmi(value_reg, miss_label); 712 __ JumpIfSmi(value_reg, miss_label);
715 } 713 }
716 } else if (representation.IsDouble()) { 714 } else if (representation.IsDouble()) {
717 // Load the double storage. 715 // Load the double storage.
718 if (index < 0) { 716 if (index < 0) {
719 int offset = object->map()->instance_size() + (index * kPointerSize); 717 int offset = object->map()->instance_size() + (index * kPointerSize);
720 __ mov(scratch1, FieldOperand(receiver_reg, offset)); 718 __ mov(scratch1, FieldOperand(receiver_reg, offset));
721 } else { 719 } else {
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831 // Make sure there's no overlap between holder and object registers. 829 // Make sure there's no overlap between holder and object registers.
832 ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); 830 ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg));
833 ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) 831 ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg)
834 && !scratch2.is(scratch1)); 832 && !scratch2.is(scratch1));
835 833
836 // Keep track of the current object in register reg. 834 // Keep track of the current object in register reg.
837 Register reg = object_reg; 835 Register reg = object_reg;
838 int depth = 0; 836 int depth = 0;
839 837
840 Handle<JSObject> current = Handle<JSObject>::null(); 838 Handle<JSObject> current = Handle<JSObject>::null();
841 if (type->IsConstant()) current = 839 if (type->IsConstant()) current = Handle<JSObject>::cast(type->AsConstant());
842 Handle<JSObject>::cast(type->AsConstant()->Value());
843 Handle<JSObject> prototype = Handle<JSObject>::null(); 840 Handle<JSObject> prototype = Handle<JSObject>::null();
844 Handle<Map> current_map = receiver_map; 841 Handle<Map> current_map = receiver_map;
845 Handle<Map> holder_map(holder->map()); 842 Handle<Map> holder_map(holder->map());
846 // Traverse the prototype chain and check the maps in the prototype chain for 843 // Traverse the prototype chain and check the maps in the prototype chain for
847 // fast and global objects or do negative lookup for normal objects. 844 // fast and global objects or do negative lookup for normal objects.
848 while (!current_map.is_identical_to(holder_map)) { 845 while (!current_map.is_identical_to(holder_map)) {
849 ++depth; 846 ++depth;
850 847
851 // Only global objects and objects that do not require access 848 // Only global objects and objects that do not require access
852 // checks are allowed in stubs. 849 // checks are allowed in stubs.
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1550 // ----------------------------------- 1547 // -----------------------------------
1551 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); 1548 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
1552 } 1549 }
1553 1550
1554 1551
1555 #undef __ 1552 #undef __
1556 1553
1557 } } // namespace v8::internal 1554 } } // namespace v8::internal
1558 1555
1559 #endif // V8_TARGET_ARCH_IA32 1556 #endif // V8_TARGET_ARCH_IA32
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