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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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| 638 JSArrayBuilder* array_builder) { | 638 JSArrayBuilder* array_builder) { |
| 639 // Smi check and range check on the input arg. | 639 // Smi check and range check on the input arg. |
| 640 HValue* constant_one = graph()->GetConstant1(); | 640 HValue* constant_one = graph()->GetConstant1(); |
| 641 HValue* constant_zero = graph()->GetConstant0(); | 641 HValue* constant_zero = graph()->GetConstant0(); |
| 642 | 642 |
| 643 HInstruction* elements = Add<HArgumentsElements>(false); | 643 HInstruction* elements = Add<HArgumentsElements>(false); |
| 644 HInstruction* argument = AddInstruction( | 644 HInstruction* argument = AddInstruction( |
| 645 new(zone()) HAccessArgumentsAt(elements, constant_one, constant_zero)); | 645 new(zone()) HAccessArgumentsAt(elements, constant_one, constant_zero)); |
| 646 | 646 |
| 647 HConstant* max_alloc_length = | 647 HConstant* max_alloc_length = |
| 648 Add<HConstant>(JSObject::kInitialMaxFastElementArray); | 648 Add<HConstant>(JSObject::InitialMaxFastElementArray(isolate()->heap())); |
| 649 const int initial_capacity = JSArray::kPreallocatedArrayElements; | 649 const int initial_capacity = JSArray::kPreallocatedArrayElements; |
| 650 HConstant* initial_capacity_node = New<HConstant>(initial_capacity); | 650 HConstant* initial_capacity_node = New<HConstant>(initial_capacity); |
| 651 AddInstruction(initial_capacity_node); | 651 AddInstruction(initial_capacity_node); |
| 652 | 652 |
| 653 HInstruction* checked_arg = Add<HBoundsCheck>(argument, max_alloc_length); | 653 HInstruction* checked_arg = Add<HBoundsCheck>(argument, max_alloc_length); |
| 654 IfBuilder if_builder(this); | 654 IfBuilder if_builder(this); |
| 655 if_builder.If<HCompareNumericAndBranch>(checked_arg, constant_zero, | 655 if_builder.If<HCompareNumericAndBranch>(checked_arg, constant_zero, |
| 656 Token::EQ); | 656 Token::EQ); |
| 657 if_builder.Then(); | 657 if_builder.Then(); |
| 658 Push(initial_capacity_node); // capacity | 658 Push(initial_capacity_node); // capacity |
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| 1095 return js_function; | 1095 return js_function; |
| 1096 } | 1096 } |
| 1097 | 1097 |
| 1098 | 1098 |
| 1099 Handle<Code> FastNewClosureStub::GenerateCode() { | 1099 Handle<Code> FastNewClosureStub::GenerateCode() { |
| 1100 return DoGenerateCode(this); | 1100 return DoGenerateCode(this); |
| 1101 } | 1101 } |
| 1102 | 1102 |
| 1103 | 1103 |
| 1104 } } // namespace v8::internal | 1104 } } // namespace v8::internal |
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