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1 // Copyright 2012 the V8 project authors. All rights reserved.7 | 1 // Copyright 2012 the V8 project authors. All rights reserved.7 |
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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2792 } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { | 2792 } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { |
2793 DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS); | 2793 DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS); |
2794 Label done; | 2794 Label done; |
2795 __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); | 2795 __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
2796 __ Branch(&done, ne, result, Operand(scratch)); | 2796 __ Branch(&done, ne, result, Operand(scratch)); |
2797 if (info()->IsStub()) { | 2797 if (info()->IsStub()) { |
2798 // A stub can safely convert the hole to undefined only if the array | 2798 // A stub can safely convert the hole to undefined only if the array |
2799 // protector cell contains (Smi) Isolate::kProtectorValid. Otherwise | 2799 // protector cell contains (Smi) Isolate::kProtectorValid. Otherwise |
2800 // it needs to bail out. | 2800 // it needs to bail out. |
2801 __ LoadRoot(result, Heap::kArrayProtectorRootIndex); | 2801 __ LoadRoot(result, Heap::kArrayProtectorRootIndex); |
2802 __ lw(result, FieldMemOperand(result, Cell::kValueOffset)); | 2802 __ lw(result, FieldMemOperand(result, PropertyCell::kValueOffset)); |
2803 DeoptimizeIf(ne, instr, DeoptimizeReason::kHole, result, | 2803 DeoptimizeIf(ne, instr, DeoptimizeReason::kHole, result, |
2804 Operand(Smi::FromInt(Isolate::kProtectorValid))); | 2804 Operand(Smi::FromInt(Isolate::kProtectorValid))); |
2805 } | 2805 } |
2806 __ LoadRoot(result, Heap::kUndefinedValueRootIndex); | 2806 __ LoadRoot(result, Heap::kUndefinedValueRootIndex); |
2807 __ bind(&done); | 2807 __ bind(&done); |
2808 } | 2808 } |
2809 } | 2809 } |
2810 | 2810 |
2811 | 2811 |
2812 void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { | 2812 void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { |
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5414 __ lw(result, FieldMemOperand(scratch, | 5414 __ lw(result, FieldMemOperand(scratch, |
5415 FixedArray::kHeaderSize - kPointerSize)); | 5415 FixedArray::kHeaderSize - kPointerSize)); |
5416 __ bind(deferred->exit()); | 5416 __ bind(deferred->exit()); |
5417 __ bind(&done); | 5417 __ bind(&done); |
5418 } | 5418 } |
5419 | 5419 |
5420 #undef __ | 5420 #undef __ |
5421 | 5421 |
5422 } // namespace internal | 5422 } // namespace internal |
5423 } // namespace v8 | 5423 } // namespace v8 |
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