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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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1762 // rbx: initial map | 1762 // rbx: initial map |
1763 __ CmpInstanceType(rbx, JS_FUNCTION_TYPE); | 1763 __ CmpInstanceType(rbx, JS_FUNCTION_TYPE); |
1764 __ Assert(not_equal, "Function constructed by construct stub."); | 1764 __ Assert(not_equal, "Function constructed by construct stub."); |
1765 #endif | 1765 #endif |
1766 | 1766 |
1767 // Now allocate the JSObject in new space. | 1767 // Now allocate the JSObject in new space. |
1768 // rdi: constructor | 1768 // rdi: constructor |
1769 // rbx: initial map | 1769 // rbx: initial map |
1770 __ movzxbq(rcx, FieldOperand(rbx, Map::kInstanceSizeOffset)); | 1770 __ movzxbq(rcx, FieldOperand(rbx, Map::kInstanceSizeOffset)); |
1771 __ shl(rcx, Immediate(kPointerSizeLog2)); | 1771 __ shl(rcx, Immediate(kPointerSizeLog2)); |
1772 __ AllocateObjectInNewSpace(rcx, | 1772 __ AllocateInNewSpace(rcx, |
1773 rdx, | 1773 rdx, |
1774 rcx, | 1774 rcx, |
1775 no_reg, | 1775 no_reg, |
1776 &generic_stub_call, | 1776 &generic_stub_call, |
1777 NO_ALLOCATION_FLAGS); | 1777 NO_ALLOCATION_FLAGS); |
1778 | 1778 |
1779 // Allocated the JSObject, now initialize the fields and add the heap tag. | 1779 // Allocated the JSObject, now initialize the fields and add the heap tag. |
1780 // rbx: initial map | 1780 // rbx: initial map |
1781 // rdx: JSObject (untagged) | 1781 // rdx: JSObject (untagged) |
1782 __ movq(Operand(rdx, JSObject::kMapOffset), rbx); | 1782 __ movq(Operand(rdx, JSObject::kMapOffset), rbx); |
1783 __ Move(rbx, Factory::empty_fixed_array()); | 1783 __ Move(rbx, Factory::empty_fixed_array()); |
1784 __ movq(Operand(rdx, JSObject::kPropertiesOffset), rbx); | 1784 __ movq(Operand(rdx, JSObject::kPropertiesOffset), rbx); |
1785 __ movq(Operand(rdx, JSObject::kElementsOffset), rbx); | 1785 __ movq(Operand(rdx, JSObject::kElementsOffset), rbx); |
1786 | 1786 |
1787 // rax: argc | 1787 // rax: argc |
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1851 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); | 1851 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
1852 | 1852 |
1853 // Return the generated code. | 1853 // Return the generated code. |
1854 return GetCode(); | 1854 return GetCode(); |
1855 } | 1855 } |
1856 | 1856 |
1857 | 1857 |
1858 #undef __ | 1858 #undef __ |
1859 | 1859 |
1860 } } // namespace v8::internal | 1860 } } // namespace v8::internal |
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