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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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1775 } | 1775 } |
1776 | 1776 |
1777 bool result_saved = false; // Is the result saved to the stack? | 1777 bool result_saved = false; // Is the result saved to the stack? |
1778 | 1778 |
1779 // Emit code to evaluate all the non-constant subexpressions and to store | 1779 // Emit code to evaluate all the non-constant subexpressions and to store |
1780 // them into the newly cloned array. | 1780 // them into the newly cloned array. |
1781 for (int i = 0; i < length; i++) { | 1781 for (int i = 0; i < length; i++) { |
1782 Expression* subexpr = subexprs->at(i); | 1782 Expression* subexpr = subexprs->at(i); |
1783 // If the subexpression is a literal or a simple materialized literal it | 1783 // If the subexpression is a literal or a simple materialized literal it |
1784 // is already set in the cloned array. | 1784 // is already set in the cloned array. |
1785 if (subexpr->AsLiteral() != NULL || | 1785 if (CompileTimeValue::IsCompileTimeValue(subexpr)) continue; |
1786 CompileTimeValue::IsCompileTimeValue(subexpr)) { | |
1787 continue; | |
1788 } | |
1789 | 1786 |
1790 if (!result_saved) { | 1787 if (!result_saved) { |
1791 __ push(eax); // array literal. | 1788 __ push(eax); // array literal. |
1792 __ push(Immediate(Smi::FromInt(expr->literal_index()))); | 1789 __ push(Immediate(Smi::FromInt(expr->literal_index()))); |
1793 result_saved = true; | 1790 result_saved = true; |
1794 } | 1791 } |
1795 VisitForAccumulatorValue(subexpr); | 1792 VisitForAccumulatorValue(subexpr); |
1796 | 1793 |
1797 if (IsFastObjectElementsKind(constant_elements_kind)) { | 1794 if (IsFastObjectElementsKind(constant_elements_kind)) { |
1798 // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they | 1795 // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they |
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4921 *stack_depth = 0; | 4918 *stack_depth = 0; |
4922 *context_length = 0; | 4919 *context_length = 0; |
4923 return previous_; | 4920 return previous_; |
4924 } | 4921 } |
4925 | 4922 |
4926 #undef __ | 4923 #undef __ |
4927 | 4924 |
4928 } } // namespace v8::internal | 4925 } } // namespace v8::internal |
4929 | 4926 |
4930 #endif // V8_TARGET_ARCH_IA32 | 4927 #endif // V8_TARGET_ARCH_IA32 |
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