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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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734 // stored as a smi. | 734 // stored as a smi. |
735 // result: JSObject | 735 // result: JSObject |
736 // scratch1: elements array | 736 // scratch1: elements array |
737 // scratch2: start of next object | 737 // scratch2: start of next object |
738 __ mov(FieldOperand(scratch1, JSObject::kMapOffset), | 738 __ mov(FieldOperand(scratch1, JSObject::kMapOffset), |
739 Factory::fixed_array_map()); | 739 Factory::fixed_array_map()); |
740 __ mov(FieldOperand(scratch1, Array::kLengthOffset), Immediate(holes)); | 740 __ mov(FieldOperand(scratch1, Array::kLengthOffset), Immediate(holes)); |
741 | 741 |
742 // Fill the FixedArray with the hole value. Inline the code if short. | 742 // Fill the FixedArray with the hole value. Inline the code if short. |
743 // Reconsider loop unfolding if kPreallocatedArrayElements gets changed. | 743 // Reconsider loop unfolding if kPreallocatedArrayElements gets changed. |
744 static const int kLoopUnfoldLimit = 4 | 744 static const int kLoopUnfoldLimit = 4; |
745 ASSERT(kPreallocatedArrayElements <= kLoopUnfoldLimit); | 745 ASSERT(kPreallocatedArrayElements <= kLoopUnfoldLimit); |
746 if (holes <= kLoopUnfoldLimit) { | 746 if (holes <= kLoopUnfoldLimit) { |
747 // Use a scratch register here to have only one reloc info when unfolding | 747 // Use a scratch register here to have only one reloc info when unfolding |
748 // the loop. | 748 // the loop. |
749 __ mov(scratch3, Factory::the_hole_value()); | 749 __ mov(scratch3, Factory::the_hole_value()); |
750 for (int i = 0; i < holes; i++) { | 750 for (int i = 0; i < holes; i++) { |
751 __ mov(FieldOperand(scratch1, | 751 __ mov(FieldOperand(scratch1, |
752 FixedArray::kHeaderSize + i * kPointerSize), | 752 FixedArray::kHeaderSize + i * kPointerSize), |
753 scratch3); | 753 scratch3); |
754 } | 754 } |
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1229 // Dont adapt arguments. | 1229 // Dont adapt arguments. |
1230 // ------------------------------------------- | 1230 // ------------------------------------------- |
1231 __ bind(&dont_adapt_arguments); | 1231 __ bind(&dont_adapt_arguments); |
1232 __ jmp(Operand(edx)); | 1232 __ jmp(Operand(edx)); |
1233 } | 1233 } |
1234 | 1234 |
1235 | 1235 |
1236 #undef __ | 1236 #undef __ |
1237 | 1237 |
1238 } } // namespace v8::internal | 1238 } } // namespace v8::internal |
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