OLD | NEW |
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 |
(...skipping 61 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
72 handle.Dispose(isolate); | 72 handle.Dispose(isolate); |
73 } | 73 } |
74 | 74 |
75 | 75 |
76 TEST(Weakness) { | 76 TEST(Weakness) { |
77 FLAG_incremental_marking = false; | 77 FLAG_incremental_marking = false; |
78 LocalContext context; | 78 LocalContext context; |
79 Isolate* isolate = GetIsolateFrom(&context); | 79 Isolate* isolate = GetIsolateFrom(&context); |
80 Factory* factory = isolate->factory(); | 80 Factory* factory = isolate->factory(); |
81 Heap* heap = isolate->heap(); | 81 Heap* heap = isolate->heap(); |
82 v8::HandleScope scope; | 82 HandleScope scope(isolate); |
83 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); | 83 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); |
84 GlobalHandles* global_handles = isolate->global_handles(); | 84 GlobalHandles* global_handles = isolate->global_handles(); |
85 | 85 |
86 // Keep global reference to the key. | 86 // Keep global reference to the key. |
87 Handle<Object> key; | 87 Handle<Object> key; |
88 { | 88 { |
89 v8::HandleScope scope; | 89 HandleScope scope(isolate); |
90 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); | 90 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); |
91 Handle<JSObject> object = factory->NewJSObjectFromMap(map); | 91 Handle<JSObject> object = factory->NewJSObjectFromMap(map); |
92 key = global_handles->Create(*object); | 92 key = global_handles->Create(*object); |
93 } | 93 } |
94 CHECK(!global_handles->IsWeak(key.location())); | 94 CHECK(!global_handles->IsWeak(key.location())); |
95 | 95 |
96 // Put entry into weak map. | 96 // Put entry into weak map. |
97 { | 97 { |
98 v8::HandleScope scope; | 98 HandleScope scope(isolate); |
99 PutIntoWeakMap(weakmap, | 99 PutIntoWeakMap(weakmap, |
100 Handle<JSObject>(JSObject::cast(*key)), | 100 Handle<JSObject>(JSObject::cast(*key)), |
101 Handle<Smi>(Smi::FromInt(23), isolate)); | 101 Handle<Smi>(Smi::FromInt(23), isolate)); |
102 } | 102 } |
103 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); | 103 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); |
104 | 104 |
105 // Force a full GC. | 105 // Force a full GC. |
106 heap->CollectAllGarbage(false); | 106 heap->CollectAllGarbage(false); |
107 CHECK_EQ(0, NumberOfWeakCalls); | 107 CHECK_EQ(0, NumberOfWeakCalls); |
108 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); | 108 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); |
109 CHECK_EQ( | 109 CHECK_EQ( |
110 0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); | 110 0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); |
111 | 111 |
112 // Make the global reference to the key weak. | 112 // Make the global reference to the key weak. |
113 { | 113 { |
114 v8::HandleScope scope; | 114 HandleScope scope(isolate); |
115 global_handles->MakeWeak(key.location(), | 115 global_handles->MakeWeak(key.location(), |
116 reinterpret_cast<void*>(1234), | 116 reinterpret_cast<void*>(1234), |
117 NULL, | 117 NULL, |
118 &WeakPointerCallback); | 118 &WeakPointerCallback); |
119 } | 119 } |
120 CHECK(global_handles->IsWeak(key.location())); | 120 CHECK(global_handles->IsWeak(key.location())); |
121 | 121 |
122 // Force a full GC. | 122 // Force a full GC. |
123 // Perform two consecutive GCs because the first one will only clear | 123 // Perform two consecutive GCs because the first one will only clear |
124 // weak references whereas the second one will also clear weak maps. | 124 // weak references whereas the second one will also clear weak maps. |
125 heap->CollectAllGarbage(false); | 125 heap->CollectAllGarbage(false); |
126 CHECK_EQ(1, NumberOfWeakCalls); | 126 CHECK_EQ(1, NumberOfWeakCalls); |
127 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); | 127 CHECK_EQ(1, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); |
128 CHECK_EQ( | 128 CHECK_EQ( |
129 0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); | 129 0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); |
130 heap->CollectAllGarbage(false); | 130 heap->CollectAllGarbage(false); |
131 CHECK_EQ(1, NumberOfWeakCalls); | 131 CHECK_EQ(1, NumberOfWeakCalls); |
132 CHECK_EQ(0, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); | 132 CHECK_EQ(0, ObjectHashTable::cast(weakmap->table())->NumberOfElements()); |
133 CHECK_EQ( | 133 CHECK_EQ( |
134 1, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); | 134 1, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements()); |
135 } | 135 } |
136 | 136 |
137 | 137 |
138 TEST(Shrinking) { | 138 TEST(Shrinking) { |
139 LocalContext context; | 139 LocalContext context; |
140 Isolate* isolate = GetIsolateFrom(&context); | 140 Isolate* isolate = GetIsolateFrom(&context); |
141 Factory* factory = isolate->factory(); | 141 Factory* factory = isolate->factory(); |
142 Heap* heap = isolate->heap(); | 142 Heap* heap = isolate->heap(); |
143 v8::HandleScope scope; | 143 HandleScope scope(isolate); |
144 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); | 144 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); |
145 | 145 |
146 // Check initial capacity. | 146 // Check initial capacity. |
147 CHECK_EQ(32, ObjectHashTable::cast(weakmap->table())->Capacity()); | 147 CHECK_EQ(32, ObjectHashTable::cast(weakmap->table())->Capacity()); |
148 | 148 |
149 // Fill up weak map to trigger capacity change. | 149 // Fill up weak map to trigger capacity change. |
150 { | 150 { |
151 v8::HandleScope scope; | 151 HandleScope scope(isolate); |
152 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); | 152 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); |
153 for (int i = 0; i < 32; i++) { | 153 for (int i = 0; i < 32; i++) { |
154 Handle<JSObject> object = factory->NewJSObjectFromMap(map); | 154 Handle<JSObject> object = factory->NewJSObjectFromMap(map); |
155 PutIntoWeakMap(weakmap, object, Handle<Smi>(Smi::FromInt(i), isolate)); | 155 PutIntoWeakMap(weakmap, object, Handle<Smi>(Smi::FromInt(i), isolate)); |
156 } | 156 } |
157 } | 157 } |
158 | 158 |
159 // Check increased capacity. | 159 // Check increased capacity. |
160 CHECK_EQ(128, ObjectHashTable::cast(weakmap->table())->Capacity()); | 160 CHECK_EQ(128, ObjectHashTable::cast(weakmap->table())->Capacity()); |
161 | 161 |
(...skipping 12 matching lines...) Expand all Loading... |
174 | 174 |
175 | 175 |
176 // Test that weak map values on an evacuation candidate which are not reachable | 176 // Test that weak map values on an evacuation candidate which are not reachable |
177 // by other paths are correctly recorded in the slots buffer. | 177 // by other paths are correctly recorded in the slots buffer. |
178 TEST(Regress2060a) { | 178 TEST(Regress2060a) { |
179 FLAG_always_compact = true; | 179 FLAG_always_compact = true; |
180 LocalContext context; | 180 LocalContext context; |
181 Isolate* isolate = GetIsolateFrom(&context); | 181 Isolate* isolate = GetIsolateFrom(&context); |
182 Factory* factory = isolate->factory(); | 182 Factory* factory = isolate->factory(); |
183 Heap* heap = isolate->heap(); | 183 Heap* heap = isolate->heap(); |
184 v8::HandleScope scope; | 184 HandleScope scope(isolate); |
185 Handle<JSFunction> function = | 185 Handle<JSFunction> function = |
186 factory->NewFunction(factory->function_string(), factory->null_value()); | 186 factory->NewFunction(factory->function_string(), factory->null_value()); |
187 Handle<JSObject> key = factory->NewJSObject(function); | 187 Handle<JSObject> key = factory->NewJSObject(function); |
188 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); | 188 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); |
189 | 189 |
190 // Start second old-space page so that values land on evacuation candidate. | 190 // Start second old-space page so that values land on evacuation candidate. |
191 Page* first_page = heap->old_pointer_space()->anchor()->next_page(); | 191 Page* first_page = heap->old_pointer_space()->anchor()->next_page(); |
192 factory->NewFixedArray(900 * KB / kPointerSize, TENURED); | 192 factory->NewFixedArray(900 * KB / kPointerSize, TENURED); |
193 | 193 |
194 // Fill up weak map with values on an evacuation candidate. | 194 // Fill up weak map with values on an evacuation candidate. |
195 { | 195 { |
196 v8::HandleScope scope; | 196 HandleScope scope(isolate); |
197 for (int i = 0; i < 32; i++) { | 197 for (int i = 0; i < 32; i++) { |
198 Handle<JSObject> object = factory->NewJSObject(function, TENURED); | 198 Handle<JSObject> object = factory->NewJSObject(function, TENURED); |
199 CHECK(!heap->InNewSpace(object->address())); | 199 CHECK(!heap->InNewSpace(object->address())); |
200 CHECK(!first_page->Contains(object->address())); | 200 CHECK(!first_page->Contains(object->address())); |
201 PutIntoWeakMap(weakmap, key, object); | 201 PutIntoWeakMap(weakmap, key, object); |
202 } | 202 } |
203 } | 203 } |
204 | 204 |
205 // Force compacting garbage collection. | 205 // Force compacting garbage collection. |
206 CHECK(FLAG_always_compact); | 206 CHECK(FLAG_always_compact); |
207 heap->CollectAllGarbage(Heap::kNoGCFlags); | 207 heap->CollectAllGarbage(Heap::kNoGCFlags); |
208 } | 208 } |
209 | 209 |
210 | 210 |
211 // Test that weak map keys on an evacuation candidate which are reachable by | 211 // Test that weak map keys on an evacuation candidate which are reachable by |
212 // other strong paths are correctly recorded in the slots buffer. | 212 // other strong paths are correctly recorded in the slots buffer. |
213 TEST(Regress2060b) { | 213 TEST(Regress2060b) { |
214 FLAG_always_compact = true; | 214 FLAG_always_compact = true; |
215 #ifdef VERIFY_HEAP | 215 #ifdef VERIFY_HEAP |
216 FLAG_verify_heap = true; | 216 FLAG_verify_heap = true; |
217 #endif | 217 #endif |
218 | 218 |
219 LocalContext context; | 219 LocalContext context; |
220 Isolate* isolate = GetIsolateFrom(&context); | 220 Isolate* isolate = GetIsolateFrom(&context); |
221 Factory* factory = isolate->factory(); | 221 Factory* factory = isolate->factory(); |
222 Heap* heap = isolate->heap(); | 222 Heap* heap = isolate->heap(); |
223 v8::HandleScope scope; | 223 HandleScope scope(isolate); |
224 Handle<JSFunction> function = | 224 Handle<JSFunction> function = |
225 factory->NewFunction(factory->function_string(), factory->null_value()); | 225 factory->NewFunction(factory->function_string(), factory->null_value()); |
226 | 226 |
227 // Start second old-space page so that keys land on evacuation candidate. | 227 // Start second old-space page so that keys land on evacuation candidate. |
228 Page* first_page = heap->old_pointer_space()->anchor()->next_page(); | 228 Page* first_page = heap->old_pointer_space()->anchor()->next_page(); |
229 factory->NewFixedArray(900 * KB / kPointerSize, TENURED); | 229 factory->NewFixedArray(900 * KB / kPointerSize, TENURED); |
230 | 230 |
231 // Fill up weak map with keys on an evacuation candidate. | 231 // Fill up weak map with keys on an evacuation candidate. |
232 Handle<JSObject> keys[32]; | 232 Handle<JSObject> keys[32]; |
233 for (int i = 0; i < 32; i++) { | 233 for (int i = 0; i < 32; i++) { |
234 keys[i] = factory->NewJSObject(function, TENURED); | 234 keys[i] = factory->NewJSObject(function, TENURED); |
235 CHECK(!heap->InNewSpace(keys[i]->address())); | 235 CHECK(!heap->InNewSpace(keys[i]->address())); |
236 CHECK(!first_page->Contains(keys[i]->address())); | 236 CHECK(!first_page->Contains(keys[i]->address())); |
237 } | 237 } |
238 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); | 238 Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate); |
239 for (int i = 0; i < 32; i++) { | 239 for (int i = 0; i < 32; i++) { |
240 PutIntoWeakMap(weakmap, | 240 PutIntoWeakMap(weakmap, |
241 keys[i], | 241 keys[i], |
242 Handle<Smi>(Smi::FromInt(i), isolate)); | 242 Handle<Smi>(Smi::FromInt(i), isolate)); |
243 } | 243 } |
244 | 244 |
245 // Force compacting garbage collection. The subsequent collections are used | 245 // Force compacting garbage collection. The subsequent collections are used |
246 // to verify that key references were actually updated. | 246 // to verify that key references were actually updated. |
247 CHECK(FLAG_always_compact); | 247 CHECK(FLAG_always_compact); |
248 heap->CollectAllGarbage(Heap::kNoGCFlags); | 248 heap->CollectAllGarbage(Heap::kNoGCFlags); |
249 heap->CollectAllGarbage(Heap::kNoGCFlags); | 249 heap->CollectAllGarbage(Heap::kNoGCFlags); |
250 heap->CollectAllGarbage(Heap::kNoGCFlags); | 250 heap->CollectAllGarbage(Heap::kNoGCFlags); |
251 } | 251 } |
OLD | NEW |