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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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953 } | 953 } |
954 | 954 |
955 | 955 |
956 TEST(Regression39128) { | 956 TEST(Regression39128) { |
957 // Test case for crbug.com/39128. | 957 // Test case for crbug.com/39128. |
958 CcTest::InitializeVM(); | 958 CcTest::InitializeVM(); |
959 Isolate* isolate = Isolate::Current(); | 959 Isolate* isolate = Isolate::Current(); |
960 Factory* factory = isolate->factory(); | 960 Factory* factory = isolate->factory(); |
961 | 961 |
962 // Increase the chance of 'bump-the-pointer' allocation in old space. | 962 // Increase the chance of 'bump-the-pointer' allocation in old space. |
963 HEAP->CollectAllGarbage(Heap::kNoGCFlags); | 963 HEAP->CollectAllGarbage(Heap::kAbortIncrementalMarkingMask); |
964 | 964 |
965 v8::HandleScope scope(CcTest::isolate()); | 965 v8::HandleScope scope(CcTest::isolate()); |
966 | 966 |
967 // The plan: create JSObject which references objects in new space. | 967 // The plan: create JSObject which references objects in new space. |
968 // Then clone this object (forcing it to go into old space) and check | 968 // Then clone this object (forcing it to go into old space) and check |
969 // that region dirty marks are updated correctly. | 969 // that region dirty marks are updated correctly. |
970 | 970 |
971 // Step 1: prepare a map for the object. We add 1 inobject property to it. | 971 // Step 1: prepare a map for the object. We add 1 inobject property to it. |
972 Handle<JSFunction> object_ctor( | 972 Handle<JSFunction> object_ctor( |
973 Isolate::Current()->native_context()->object_function()); | 973 Isolate::Current()->native_context()->object_function()); |
974 CHECK(object_ctor->has_initial_map()); | 974 CHECK(object_ctor->has_initial_map()); |
975 Handle<Map> object_map(object_ctor->initial_map()); | 975 Handle<Map> object_map(object_ctor->initial_map()); |
976 // Create a map with single inobject property. | 976 // Create a map with single inobject property. |
977 Handle<Map> my_map = factory->CopyMap(object_map, 1); | 977 Handle<Map> my_map = factory->CopyMap(object_map, 1); |
978 int n_properties = my_map->inobject_properties(); | 978 int n_properties = my_map->inobject_properties(); |
979 CHECK_GT(n_properties, 0); | 979 CHECK_GT(n_properties, 0); |
980 | 980 |
981 int object_size = my_map->instance_size(); | 981 int object_size = my_map->instance_size(); |
982 | 982 |
983 // Step 2: allocate a lot of objects so to almost fill new space: we need | 983 // Step 2: allocate a lot of objects so to almost fill new space: we need |
984 // just enough room to allocate JSObject and thus fill the newspace. | 984 // just enough room to allocate JSObject and thus fill the newspace. |
985 | 985 |
986 int allocation_amount = Min(FixedArray::kMaxSize, | 986 int allocation_amount = Min(FixedArray::kMaxSize, |
987 Page::kMaxNonCodeHeapObjectSize); | 987 Page::kMaxNonCodeHeapObjectSize + kPointerSize); |
988 int allocation_len = LenFromSize(allocation_amount); | 988 int allocation_len = LenFromSize(allocation_amount); |
989 NewSpace* new_space = HEAP->new_space(); | 989 NewSpace* new_space = HEAP->new_space(); |
990 Address* top_addr = new_space->allocation_top_address(); | 990 Address* top_addr = new_space->allocation_top_address(); |
991 Address* limit_addr = new_space->allocation_limit_address(); | 991 Address* limit_addr = new_space->allocation_limit_address(); |
992 while ((*limit_addr - *top_addr) > allocation_amount) { | 992 while ((*limit_addr - *top_addr) > allocation_amount) { |
993 CHECK(!HEAP->always_allocate()); | 993 CHECK(!HEAP->always_allocate()); |
994 Object* array = HEAP->AllocateFixedArray(allocation_len)->ToObjectChecked(); | 994 Object* array = HEAP->AllocateFixedArray(allocation_len)->ToObjectChecked(); |
995 CHECK(!array->IsFailure()); | 995 CHECK(!array->IsFailure()); |
996 CHECK(new_space->Contains(array)); | 996 CHECK(new_space->Contains(array)); |
997 } | 997 } |
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3379 " var a = new Array(n);" | 3379 " var a = new Array(n);" |
3380 " for (var i = 0; i < n; i += 100) a[i] = i;" | 3380 " for (var i = 0; i < n; i += 100) a[i] = i;" |
3381 "};" | 3381 "};" |
3382 "f(10 * 1024 * 1024);"); | 3382 "f(10 * 1024 * 1024);"); |
3383 IncrementalMarking* marking = HEAP->incremental_marking(); | 3383 IncrementalMarking* marking = HEAP->incremental_marking(); |
3384 if (marking->IsStopped()) marking->Start(); | 3384 if (marking->IsStopped()) marking->Start(); |
3385 // This big step should be sufficient to mark the whole array. | 3385 // This big step should be sufficient to mark the whole array. |
3386 marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD); | 3386 marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD); |
3387 ASSERT(marking->IsComplete()); | 3387 ASSERT(marking->IsComplete()); |
3388 } | 3388 } |
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