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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 1975 // A Smi is not an instance of anything. | 1975 // A Smi is not an instance of anything. |
| 1976 __ JumpIfSmi(object, &false_result); | 1976 __ JumpIfSmi(object, &false_result); |
| 1977 | 1977 |
| 1978 // This is the inlined call site instanceof cache. The two occurences of the | 1978 // This is the inlined call site instanceof cache. The two occurences of the |
| 1979 // hole value will be patched to the last map/result pair generated by the | 1979 // hole value will be patched to the last map/result pair generated by the |
| 1980 // instanceof stub. | 1980 // instanceof stub. |
| 1981 Label cache_miss; | 1981 Label cache_miss; |
| 1982 Register map = ToRegister(instr->TempAt(0)); | 1982 Register map = ToRegister(instr->TempAt(0)); |
| 1983 __ mov(map, FieldOperand(object, HeapObject::kMapOffset)); | 1983 __ mov(map, FieldOperand(object, HeapObject::kMapOffset)); |
| 1984 __ bind(deferred->map_check()); // Label for calculating code patching. | 1984 __ bind(deferred->map_check()); // Label for calculating code patching. |
| 1985 __ cmp(map, factory()->the_hole_value()); // Patched to cached map. | 1985 Handle<JSGlobalPropertyCell> cache_cell = |
| 1986 factory()->NewJSGlobalPropertyCell(factory()->the_hole_value()); |
| 1987 __ cmp(map, Operand::Cell(cache_cell)); // Patched to cached map. |
| 1986 __ j(not_equal, &cache_miss, Label::kNear); | 1988 __ j(not_equal, &cache_miss, Label::kNear); |
| 1987 __ mov(eax, factory()->the_hole_value()); // Patched to either true or false. | 1989 __ mov(eax, factory()->the_hole_value()); // Patched to either true or false. |
| 1988 __ jmp(&done); | 1990 __ jmp(&done); |
| 1989 | 1991 |
| 1990 // The inlined call site cache did not match. Check for null and string | 1992 // The inlined call site cache did not match. Check for null and string |
| 1991 // before calling the deferred code. | 1993 // before calling the deferred code. |
| 1992 __ bind(&cache_miss); | 1994 __ bind(&cache_miss); |
| 1993 // Null is not an instance of anything. | 1995 // Null is not an instance of anything. |
| 1994 __ cmp(object, factory()->null_value()); | 1996 __ cmp(object, factory()->null_value()); |
| 1995 __ j(equal, &false_result); | 1997 __ j(equal, &false_result); |
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| 4631 this, pointers, Safepoint::kLazyDeopt); | 4633 this, pointers, Safepoint::kLazyDeopt); |
| 4632 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); | 4634 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); |
| 4633 } | 4635 } |
| 4634 | 4636 |
| 4635 | 4637 |
| 4636 #undef __ | 4638 #undef __ |
| 4637 | 4639 |
| 4638 } } // namespace v8::internal | 4640 } } // namespace v8::internal |
| 4639 | 4641 |
| 4640 #endif // V8_TARGET_ARCH_IA32 | 4642 #endif // V8_TARGET_ARCH_IA32 |
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