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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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| 1000 STATIC_ASSERT(initial_capacity >= 0); | 1000 STATIC_ASSERT(initial_capacity >= 0); |
| 1001 | 1001 |
| 1002 __ LoadInitialArrayMap(array_function, scratch2, scratch1, false); | 1002 __ LoadInitialArrayMap(array_function, scratch2, scratch1, false); |
| 1003 | 1003 |
| 1004 // Allocate the JSArray object together with space for a fixed array with the | 1004 // Allocate the JSArray object together with space for a fixed array with the |
| 1005 // requested elements. | 1005 // requested elements. |
| 1006 int size = JSArray::kSize; | 1006 int size = JSArray::kSize; |
| 1007 if (initial_capacity > 0) { | 1007 if (initial_capacity > 0) { |
| 1008 size += FixedArray::SizeFor(initial_capacity); | 1008 size += FixedArray::SizeFor(initial_capacity); |
| 1009 } | 1009 } |
| 1010 __ AllocateInNewSpace(size, | 1010 __ Allocate(size, result, scratch2, scratch3, gc_required, TAG_OBJECT); |
| 1011 result, | |
| 1012 scratch2, | |
| 1013 scratch3, | |
| 1014 gc_required, | |
| 1015 TAG_OBJECT); | |
| 1016 | 1011 |
| 1017 // Allocated the JSArray. Now initialize the fields except for the elements | 1012 // Allocated the JSArray. Now initialize the fields except for the elements |
| 1018 // array. | 1013 // array. |
| 1019 // result: JSObject | 1014 // result: JSObject |
| 1020 // scratch1: initial map | 1015 // scratch1: initial map |
| 1021 // scratch2: start of next object | 1016 // scratch2: start of next object |
| 1022 __ mov(FieldOperand(result, JSObject::kMapOffset), scratch1); | 1017 __ mov(FieldOperand(result, JSObject::kMapOffset), scratch1); |
| 1023 Factory* factory = masm->isolate()->factory(); | 1018 Factory* factory = masm->isolate()->factory(); |
| 1024 __ mov(FieldOperand(result, JSArray::kPropertiesOffset), | 1019 __ mov(FieldOperand(result, JSArray::kPropertiesOffset), |
| 1025 factory->empty_fixed_array()); | 1020 factory->empty_fixed_array()); |
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| 1585 __ IncrementCounter(counters->string_ctor_cached_number(), 1); | 1580 __ IncrementCounter(counters->string_ctor_cached_number(), 1); |
| 1586 __ bind(&argument_is_string); | 1581 __ bind(&argument_is_string); |
| 1587 // ----------- S t a t e ------------- | 1582 // ----------- S t a t e ------------- |
| 1588 // -- ebx : argument converted to string | 1583 // -- ebx : argument converted to string |
| 1589 // -- edi : constructor function | 1584 // -- edi : constructor function |
| 1590 // -- esp[0] : return address | 1585 // -- esp[0] : return address |
| 1591 // ----------------------------------- | 1586 // ----------------------------------- |
| 1592 | 1587 |
| 1593 // Allocate a JSValue and put the tagged pointer into eax. | 1588 // Allocate a JSValue and put the tagged pointer into eax. |
| 1594 Label gc_required; | 1589 Label gc_required; |
| 1595 __ AllocateInNewSpace(JSValue::kSize, | 1590 __ Allocate(JSValue::kSize, |
| 1596 eax, // Result. | 1591 eax, // Result. |
| 1597 ecx, // New allocation top (we ignore it). | 1592 ecx, // New allocation top (we ignore it). |
| 1598 no_reg, | 1593 no_reg, |
| 1599 &gc_required, | 1594 &gc_required, |
| 1600 TAG_OBJECT); | 1595 TAG_OBJECT); |
| 1601 | 1596 |
| 1602 // Set the map. | 1597 // Set the map. |
| 1603 __ LoadGlobalFunctionInitialMap(edi, ecx); | 1598 __ LoadGlobalFunctionInitialMap(edi, ecx); |
| 1604 if (FLAG_debug_code) { | 1599 if (FLAG_debug_code) { |
| 1605 __ cmpb(FieldOperand(ecx, Map::kInstanceSizeOffset), | 1600 __ cmpb(FieldOperand(ecx, Map::kInstanceSizeOffset), |
| 1606 JSValue::kSize >> kPointerSizeLog2); | 1601 JSValue::kSize >> kPointerSizeLog2); |
| 1607 __ Assert(equal, "Unexpected string wrapper instance size"); | 1602 __ Assert(equal, "Unexpected string wrapper instance size"); |
| 1608 __ cmpb(FieldOperand(ecx, Map::kUnusedPropertyFieldsOffset), 0); | 1603 __ cmpb(FieldOperand(ecx, Map::kUnusedPropertyFieldsOffset), 0); |
| 1609 __ Assert(equal, "Unexpected unused properties of string wrapper"); | 1604 __ Assert(equal, "Unexpected unused properties of string wrapper"); |
| 1610 } | 1605 } |
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| 1856 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); | 1851 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); |
| 1857 generator.Generate(); | 1852 generator.Generate(); |
| 1858 } | 1853 } |
| 1859 | 1854 |
| 1860 | 1855 |
| 1861 #undef __ | 1856 #undef __ |
| 1862 } | 1857 } |
| 1863 } // namespace v8::internal | 1858 } // namespace v8::internal |
| 1864 | 1859 |
| 1865 #endif // V8_TARGET_ARCH_IA32 | 1860 #endif // V8_TARGET_ARCH_IA32 |
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