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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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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95 "function f() {" | 95 "function f() {" |
96 " this.a = 3;" | 96 " this.a = 3;" |
97 " this.b = {};" | 97 " this.b = {};" |
98 " return this;" | 98 " return this;" |
99 "};" | 99 "};" |
100 "var a;" | 100 "var a;" |
101 "for(var i = 0; i < %d; i++) {" | 101 "for(var i = 0; i < %d; i++) {" |
102 " a = new f();" | 102 " a = new f();" |
103 "}" | 103 "}" |
104 "a;"; | 104 "a;"; |
105 i::OS::SNPrintF(test_buf, program, call_count); | 105 i::SNPrintF(test_buf, program, call_count); |
106 v8::Local<v8::Value> res = CompileRun(test_buf.start()); | 106 v8::Local<v8::Value> res = CompileRun(test_buf.start()); |
107 Handle<JSObject> o = | 107 Handle<JSObject> o = |
108 v8::Utils::OpenHandle(*v8::Handle<v8::Object>::Cast(res)); | 108 v8::Utils::OpenHandle(*v8::Handle<v8::Object>::Cast(res)); |
109 | 109 |
110 // The object of class f should have a memento secreted behind it. | 110 // The object of class f should have a memento secreted behind it. |
111 Address memento_address = o->address() + o->map()->instance_size(); | 111 Address memento_address = o->address() + o->map()->instance_size(); |
112 AllocationMemento* memento = | 112 AllocationMemento* memento = |
113 reinterpret_cast<AllocationMemento*>(memento_address + kHeapObjectTag); | 113 reinterpret_cast<AllocationMemento*>(memento_address + kHeapObjectTag); |
114 CHECK_EQ(memento->map(), heap->allocation_memento_map()); | 114 CHECK_EQ(memento->map(), heap->allocation_memento_map()); |
115 | 115 |
116 // Furthermore, how many mementos did we create? The count should match | 116 // Furthermore, how many mementos did we create? The count should match |
117 // call_count. Note, that mementos are allocated during the inobject slack | 117 // call_count. Note, that mementos are allocated during the inobject slack |
118 // tracking phase. | 118 // tracking phase. |
119 AllocationSite* site = memento->GetAllocationSite(); | 119 AllocationSite* site = memento->GetAllocationSite(); |
120 CHECK_EQ(call_count, site->pretenure_create_count()->value()); | 120 CHECK_EQ(call_count, site->pretenure_create_count()->value()); |
121 } | 121 } |
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