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Issue 201015: Second step in allocating objects in generated code on ARM (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 11 years, 3 months ago
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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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1780 #endif 1780 #endif
1781 1781
1782 // Now allocate the JSObject in new space. 1782 // Now allocate the JSObject in new space.
1783 // rdi: constructor 1783 // rdi: constructor
1784 // rbx: initial map 1784 // rbx: initial map
1785 __ movzxbq(rcx, FieldOperand(rbx, Map::kInstanceSizeOffset)); 1785 __ movzxbq(rcx, FieldOperand(rbx, Map::kInstanceSizeOffset));
1786 __ shl(rcx, Immediate(kPointerSizeLog2)); 1786 __ shl(rcx, Immediate(kPointerSizeLog2));
1787 // Make sure that the maximum heap object size will never cause us 1787 // Make sure that the maximum heap object size will never cause us
1788 // problems here. 1788 // problems here.
1789 ASSERT(Heap::MaxObjectSizeInPagedSpace() >= JSObject::kMaxInstanceSize); 1789 ASSERT(Heap::MaxObjectSizeInPagedSpace() >= JSObject::kMaxInstanceSize);
1790 __ AllocateObjectInNewSpace(rcx, rdx, rcx, no_reg, &generic_stub_call, false); 1790 __ AllocateObjectInNewSpace(rcx,
1791 rdx,
1792 rcx,
1793 no_reg,
1794 &generic_stub_call,
1795 NO_ALLOCATION_FLAGS);
1791 1796
1792 // Allocated the JSObject, now initialize the fields and add the heap tag. 1797 // Allocated the JSObject, now initialize the fields and add the heap tag.
1793 // rbx: initial map 1798 // rbx: initial map
1794 // rdx: JSObject (untagged) 1799 // rdx: JSObject (untagged)
1795 __ movq(Operand(rdx, JSObject::kMapOffset), rbx); 1800 __ movq(Operand(rdx, JSObject::kMapOffset), rbx);
1796 __ Move(rbx, Factory::empty_fixed_array()); 1801 __ Move(rbx, Factory::empty_fixed_array());
1797 __ movq(Operand(rdx, JSObject::kPropertiesOffset), rbx); 1802 __ movq(Operand(rdx, JSObject::kPropertiesOffset), rbx);
1798 __ movq(Operand(rdx, JSObject::kElementsOffset), rbx); 1803 __ movq(Operand(rdx, JSObject::kElementsOffset), rbx);
1799 1804
1800 // rax: argc 1805 // rax: argc
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1864 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); 1869 __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
1865 1870
1866 // Return the generated code. 1871 // Return the generated code.
1867 return GetCode(); 1872 return GetCode();
1868 } 1873 }
1869 1874
1870 1875
1871 #undef __ 1876 #undef __
1872 1877
1873 } } // namespace v8::internal 1878 } } // namespace v8::internal
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