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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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122 // edi: constructor | 122 // edi: constructor |
123 // eax: initial map | 123 // eax: initial map |
124 __ CmpInstanceType(eax, JS_FUNCTION_TYPE); | 124 __ CmpInstanceType(eax, JS_FUNCTION_TYPE); |
125 __ j(equal, &rt_call); | 125 __ j(equal, &rt_call); |
126 | 126 |
127 // Now allocate the JSObject on the heap. | 127 // Now allocate the JSObject on the heap. |
128 // edi: constructor | 128 // edi: constructor |
129 // eax: initial map | 129 // eax: initial map |
130 __ movzx_b(edi, FieldOperand(eax, Map::kInstanceSizeOffset)); | 130 __ movzx_b(edi, FieldOperand(eax, Map::kInstanceSizeOffset)); |
131 __ shl(edi, kPointerSizeLog2); | 131 __ shl(edi, kPointerSizeLog2); |
132 // Make sure that the maximum heap object size will never cause us | |
133 // problem here, because it is always greater than the maximum | |
134 // instance size that can be represented in a byte. | |
135 ASSERT(Heap::MaxObjectSizeInPagedSpace() >= JSObject::kMaxInstanceSize); | |
136 __ AllocateObjectInNewSpace(edi, | 132 __ AllocateObjectInNewSpace(edi, |
137 ebx, | 133 ebx, |
138 edi, | 134 edi, |
139 no_reg, | 135 no_reg, |
140 &rt_call, | 136 &rt_call, |
141 NO_ALLOCATION_FLAGS); | 137 NO_ALLOCATION_FLAGS); |
142 // Allocated the JSObject, now initialize the fields. | 138 // Allocated the JSObject, now initialize the fields. |
143 // eax: initial map | 139 // eax: initial map |
144 // ebx: JSObject | 140 // ebx: JSObject |
145 // edi: start of next object | 141 // edi: start of next object |
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186 __ sub(edx, Operand(ecx)); | 182 __ sub(edx, Operand(ecx)); |
187 // Done if no extra properties are to be allocated. | 183 // Done if no extra properties are to be allocated. |
188 __ j(zero, &allocated); | 184 __ j(zero, &allocated); |
189 __ Assert(positive, "Property allocation count failed."); | 185 __ Assert(positive, "Property allocation count failed."); |
190 | 186 |
191 // Scale the number of elements by pointer size and add the header for | 187 // Scale the number of elements by pointer size and add the header for |
192 // FixedArrays to the start of the next object calculation from above. | 188 // FixedArrays to the start of the next object calculation from above. |
193 // ebx: JSObject | 189 // ebx: JSObject |
194 // edi: start of next object (will be start of FixedArray) | 190 // edi: start of next object (will be start of FixedArray) |
195 // edx: number of elements in properties array | 191 // edx: number of elements in properties array |
196 ASSERT(Heap::MaxObjectSizeInPagedSpace() > | |
197 (FixedArray::kHeaderSize + 255*kPointerSize)); | |
198 __ AllocateObjectInNewSpace(FixedArray::kHeaderSize, | 192 __ AllocateObjectInNewSpace(FixedArray::kHeaderSize, |
199 times_pointer_size, | 193 times_pointer_size, |
200 edx, | 194 edx, |
201 edi, | 195 edi, |
202 ecx, | 196 ecx, |
203 no_reg, | 197 no_reg, |
204 &undo_allocation, | 198 &undo_allocation, |
205 RESULT_CONTAINS_TOP); | 199 RESULT_CONTAINS_TOP); |
206 | 200 |
207 // Initialize the FixedArray. | 201 // Initialize the FixedArray. |
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774 // Dont adapt arguments. | 768 // Dont adapt arguments. |
775 // ------------------------------------------- | 769 // ------------------------------------------- |
776 __ bind(&dont_adapt_arguments); | 770 __ bind(&dont_adapt_arguments); |
777 __ jmp(Operand(edx)); | 771 __ jmp(Operand(edx)); |
778 } | 772 } |
779 | 773 |
780 | 774 |
781 #undef __ | 775 #undef __ |
782 | 776 |
783 } } // namespace v8::internal | 777 } } // namespace v8::internal |
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