| // Copyright 2013 the V8 project authors. All rights reserved. |
| |
| // Test constant pool array code. |
| |
| #include "src/v8.h" |
| |
| #include "src/factory.h" |
| #include "src/objects.h" |
| #include "test/cctest/cctest.h" |
| |
| using namespace v8::internal; |
| |
| static ConstantPoolArray::Type kTypes[] = { ConstantPoolArray::INT64, |
| ConstantPoolArray::CODE_PTR, |
| ConstantPoolArray::HEAP_PTR, |
| ConstantPoolArray::INT32 }; |
| static ConstantPoolArray::LayoutSection kSmall = |
| ConstantPoolArray::SMALL_SECTION; |
| static ConstantPoolArray::LayoutSection kExtended = |
| ConstantPoolArray::EXTENDED_SECTION; |
| |
| Code* DummyCode(LocalContext* context) { |
| CompileRun("function foo() {};"); |
| i::Handle<i::JSFunction> fun = v8::Utils::OpenHandle( |
| *v8::Local<v8::Function>::Cast( |
| (*context)->Global()->Get(v8_str("foo")))); |
| return fun->code(); |
| } |
| |
| |
| TEST(ConstantPoolSmall) { |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| // Check construction. |
| ConstantPoolArray::NumberOfEntries small(3, 1, 2, 1); |
| Handle<ConstantPoolArray> array = factory->NewConstantPoolArray(small); |
| |
| int expected_counts[] = { 3, 1, 2, 1 }; |
| int expected_first_idx[] = { 0, 3, 4, 6 }; |
| int expected_last_idx[] = { 2, 3, 5, 6 }; |
| for (int i = 0; i < 4; i++) { |
| CHECK_EQ(expected_counts[i], array->number_of_entries(kTypes[i], kSmall)); |
| CHECK_EQ(expected_first_idx[i], array->first_index(kTypes[i], kSmall)); |
| CHECK_EQ(expected_last_idx[i], array->last_index(kTypes[i], kSmall)); |
| } |
| CHECK(!array->is_extended_layout()); |
| |
| // Check getters and setters. |
| int64_t big_number = V8_2PART_UINT64_C(0x12345678, 9ABCDEF0); |
| Handle<Object> object = factory->NewHeapNumber(4.0, IMMUTABLE, TENURED); |
| Code* code = DummyCode(&context); |
| array->set(0, big_number); |
| array->set(1, 0.5); |
| array->set(2, 3e-24); |
| array->set(3, code->entry()); |
| array->set(4, code); |
| array->set(5, *object); |
| array->set(6, 50); |
| CHECK_EQ(big_number, array->get_int64_entry(0)); |
| CHECK_EQ(0.5, array->get_int64_entry_as_double(1)); |
| CHECK_EQ(3e-24, array->get_int64_entry_as_double(2)); |
| CHECK_EQ(code->entry(), array->get_code_ptr_entry(3)); |
| CHECK_EQ(code, array->get_heap_ptr_entry(4)); |
| CHECK_EQ(*object, array->get_heap_ptr_entry(5)); |
| CHECK_EQ(50, array->get_int32_entry(6)); |
| } |
| |
| |
| TEST(ConstantPoolExtended) { |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| // Check construction. |
| ConstantPoolArray::NumberOfEntries small(1, 2, 3, 4); |
| ConstantPoolArray::NumberOfEntries extended(5, 6, 7, 8); |
| Handle<ConstantPoolArray> array = |
| factory->NewExtendedConstantPoolArray(small, extended); |
| |
| // Check small section. |
| int small_counts[] = { 1, 2, 3, 4 }; |
| int small_first_idx[] = { 0, 1, 3, 6 }; |
| int small_last_idx[] = { 0, 2, 5, 9 }; |
| for (int i = 0; i < 4; i++) { |
| CHECK_EQ(small_counts[i], array->number_of_entries(kTypes[i], kSmall)); |
| CHECK_EQ(small_first_idx[i], array->first_index(kTypes[i], kSmall)); |
| CHECK_EQ(small_last_idx[i], array->last_index(kTypes[i], kSmall)); |
| } |
| |
| // Check extended layout. |
| CHECK(array->is_extended_layout()); |
| int extended_counts[] = { 5, 6, 7, 8 }; |
| int extended_first_idx[] = { 10, 15, 21, 28 }; |
| int extended_last_idx[] = { 14, 20, 27, 35 }; |
| for (int i = 0; i < 4; i++) { |
| CHECK_EQ(extended_counts[i], |
| array->number_of_entries(kTypes[i], kExtended)); |
| CHECK_EQ(extended_first_idx[i], array->first_index(kTypes[i], kExtended)); |
| CHECK_EQ(extended_last_idx[i], array->last_index(kTypes[i], kExtended)); |
| } |
| |
| // Check small and large section's don't overlap. |
| int64_t small_section_int64 = V8_2PART_UINT64_C(0x56781234, DEF09ABC); |
| Code* small_section_code_ptr = DummyCode(&context); |
| Handle<Object> small_section_heap_ptr = |
| factory->NewHeapNumber(4.0, IMMUTABLE, TENURED); |
| int32_t small_section_int32 = 0xab12cd45; |
| |
| int64_t extended_section_int64 = V8_2PART_UINT64_C(0x12345678, 9ABCDEF0); |
| Code* extended_section_code_ptr = DummyCode(&context); |
| Handle<Object> extended_section_heap_ptr = |
| factory->NewHeapNumber(5.0, IMMUTABLE, TENURED); |
| int32_t extended_section_int32 = 0xef67ab89; |
| |
| for (int i = array->first_index(ConstantPoolArray::INT64, kSmall); |
| i <= array->last_index(ConstantPoolArray::INT32, kSmall); i++) { |
| if (i <= array->last_index(ConstantPoolArray::INT64, kSmall)) { |
| array->set(i, small_section_int64); |
| } else if (i <= array->last_index(ConstantPoolArray::CODE_PTR, kSmall)) { |
| array->set(i, small_section_code_ptr->entry()); |
| } else if (i <= array->last_index(ConstantPoolArray::HEAP_PTR, kSmall)) { |
| array->set(i, *small_section_heap_ptr); |
| } else { |
| CHECK(i <= array->last_index(ConstantPoolArray::INT32, kSmall)); |
| array->set(i, small_section_int32); |
| } |
| } |
| for (int i = array->first_index(ConstantPoolArray::INT64, kExtended); |
| i <= array->last_index(ConstantPoolArray::INT32, kExtended); i++) { |
| if (i <= array->last_index(ConstantPoolArray::INT64, kExtended)) { |
| array->set(i, extended_section_int64); |
| } else if (i <= array->last_index(ConstantPoolArray::CODE_PTR, kExtended)) { |
| array->set(i, extended_section_code_ptr->entry()); |
| } else if (i <= array->last_index(ConstantPoolArray::HEAP_PTR, kExtended)) { |
| array->set(i, *extended_section_heap_ptr); |
| } else { |
| CHECK(i <= array->last_index(ConstantPoolArray::INT32, kExtended)); |
| array->set(i, extended_section_int32); |
| } |
| } |
| |
| for (int i = array->first_index(ConstantPoolArray::INT64, kSmall); |
| i <= array->last_index(ConstantPoolArray::INT32, kSmall); i++) { |
| if (i <= array->last_index(ConstantPoolArray::INT64, kSmall)) { |
| CHECK_EQ(small_section_int64, array->get_int64_entry(i)); |
| } else if (i <= array->last_index(ConstantPoolArray::CODE_PTR, kSmall)) { |
| CHECK_EQ(small_section_code_ptr->entry(), array->get_code_ptr_entry(i)); |
| } else if (i <= array->last_index(ConstantPoolArray::HEAP_PTR, kSmall)) { |
| CHECK_EQ(*small_section_heap_ptr, array->get_heap_ptr_entry(i)); |
| } else { |
| CHECK(i <= array->last_index(ConstantPoolArray::INT32, kSmall)); |
| CHECK_EQ(small_section_int32, array->get_int32_entry(i)); |
| } |
| } |
| for (int i = array->first_index(ConstantPoolArray::INT64, kExtended); |
| i <= array->last_index(ConstantPoolArray::INT32, kExtended); i++) { |
| if (i <= array->last_index(ConstantPoolArray::INT64, kExtended)) { |
| CHECK_EQ(extended_section_int64, array->get_int64_entry(i)); |
| } else if (i <= array->last_index(ConstantPoolArray::CODE_PTR, kExtended)) { |
| CHECK_EQ(extended_section_code_ptr->entry(), |
| array->get_code_ptr_entry(i)); |
| } else if (i <= array->last_index(ConstantPoolArray::HEAP_PTR, kExtended)) { |
| CHECK_EQ(*extended_section_heap_ptr, array->get_heap_ptr_entry(i)); |
| } else { |
| CHECK(i <= array->last_index(ConstantPoolArray::INT32, kExtended)); |
| CHECK_EQ(extended_section_int32, array->get_int32_entry(i)); |
| } |
| } |
| } |
| |
| |
| static void CheckIterator(Handle<ConstantPoolArray> array, |
| ConstantPoolArray::Type type, |
| int expected_indexes[], |
| int count) { |
| int i = 0; |
| ConstantPoolArray::Iterator iter(*array, type); |
| while (!iter.is_finished()) { |
| CHECK_EQ(expected_indexes[i++], iter.next_index()); |
| } |
| CHECK_EQ(count, i); |
| } |
| |
| |
| TEST(ConstantPoolIteratorSmall) { |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| ConstantPoolArray::NumberOfEntries small(1, 5, 2, 0); |
| Handle<ConstantPoolArray> array = factory->NewConstantPoolArray(small); |
| |
| int expected_int64_indexs[] = { 0 }; |
| CheckIterator(array, ConstantPoolArray::INT64, expected_int64_indexs, 1); |
| int expected_code_indexs[] = { 1, 2, 3, 4, 5 }; |
| CheckIterator(array, ConstantPoolArray::CODE_PTR, expected_code_indexs, 5); |
| int expected_heap_indexs[] = { 6, 7 }; |
| CheckIterator(array, ConstantPoolArray::HEAP_PTR, expected_heap_indexs, 2); |
| int expected_int32_indexs[1]; |
| CheckIterator(array, ConstantPoolArray::INT32, expected_int32_indexs, 0); |
| } |
| |
| |
| TEST(ConstantPoolIteratorExtended) { |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| ConstantPoolArray::NumberOfEntries small(1, 0, 0, 4); |
| ConstantPoolArray::NumberOfEntries extended(5, 0, 3, 0); |
| Handle<ConstantPoolArray> array = |
| factory->NewExtendedConstantPoolArray(small, extended); |
| |
| int expected_int64_indexs[] = { 0, 5, 6, 7, 8, 9 }; |
| CheckIterator(array, ConstantPoolArray::INT64, expected_int64_indexs, 6); |
| int expected_code_indexs[1]; |
| CheckIterator(array, ConstantPoolArray::CODE_PTR, expected_code_indexs, 0); |
| int expected_heap_indexs[] = { 10, 11, 12 }; |
| CheckIterator(array, ConstantPoolArray::HEAP_PTR, expected_heap_indexs, 3); |
| int expected_int32_indexs[] = { 1, 2, 3, 4 }; |
| CheckIterator(array, ConstantPoolArray::INT32, expected_int32_indexs, 4); |
| } |
| |
| |
| TEST(ConstantPoolPreciseGC) { |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Heap* heap = isolate->heap(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| ConstantPoolArray::NumberOfEntries small(1, 0, 0, 1); |
| Handle<ConstantPoolArray> array = factory->NewConstantPoolArray(small); |
| |
| // Check that the store buffer knows which entries are pointers and which are |
| // not. To do this, make non-pointer entries which look like new space |
| // pointers but are actually invalid and ensure the GC doesn't try to move |
| // them. |
| Handle<HeapObject> object = factory->NewHeapNumber(4.0); |
| Object* raw_ptr = *object; |
| // If interpreted as a pointer, this should be right inside the heap number |
| // which will cause a crash when trying to lookup the 'map' pointer. |
| intptr_t invalid_ptr = reinterpret_cast<intptr_t>(raw_ptr) + kInt32Size; |
| int32_t invalid_ptr_int32 = static_cast<int32_t>(invalid_ptr); |
| int64_t invalid_ptr_int64 = static_cast<int64_t>(invalid_ptr); |
| array->set(0, invalid_ptr_int64); |
| array->set(1, invalid_ptr_int32); |
| |
| // Ensure we perform a scan on scavenge for the constant pool's page. |
| MemoryChunk::FromAddress(array->address())->set_scan_on_scavenge(true); |
| heap->CollectGarbage(NEW_SPACE); |
| |
| // Check the object was moved by GC. |
| CHECK_NE(*object, raw_ptr); |
| |
| // Check the non-pointer entries weren't changed. |
| CHECK_EQ(invalid_ptr_int64, array->get_int64_entry(0)); |
| CHECK_EQ(invalid_ptr_int32, array->get_int32_entry(1)); |
| } |
| |
| |
| TEST(ConstantPoolCompacting) { |
| if (i::FLAG_never_compact) return; |
| i::FLAG_always_compact = true; |
| LocalContext context; |
| Isolate* isolate = CcTest::i_isolate(); |
| Heap* heap = isolate->heap(); |
| Factory* factory = isolate->factory(); |
| v8::HandleScope scope(context->GetIsolate()); |
| |
| ConstantPoolArray::NumberOfEntries small(0, 0, 1, 0); |
| ConstantPoolArray::NumberOfEntries extended(0, 0, 1, 0); |
| Handle<ConstantPoolArray> array = |
| factory->NewExtendedConstantPoolArray(small, extended); |
| |
| // Start a second old-space page so that the heap pointer added to the |
| // constant pool array ends up on the an evacuation candidate page. |
| Page* first_page = heap->old_data_space()->anchor()->next_page(); |
| { |
| HandleScope scope(isolate); |
| Handle<HeapObject> temp = |
| factory->NewFixedDoubleArray(900 * KB / kDoubleSize, TENURED); |
| CHECK(heap->InOldDataSpace(temp->address())); |
| Handle<HeapObject> heap_ptr = |
| factory->NewHeapNumber(5.0, IMMUTABLE, TENURED); |
| CHECK(heap->InOldDataSpace(heap_ptr->address())); |
| CHECK(!first_page->Contains(heap_ptr->address())); |
| array->set(0, *heap_ptr); |
| array->set(1, *heap_ptr); |
| } |
| |
| // Check heap pointers are correctly updated on GC. |
| Object* old_ptr = array->get_heap_ptr_entry(0); |
| Handle<Object> object(old_ptr, isolate); |
| CHECK_EQ(old_ptr, *object); |
| CHECK_EQ(old_ptr, array->get_heap_ptr_entry(1)); |
| |
| // Force compacting garbage collection. |
| CHECK(FLAG_always_compact); |
| heap->CollectAllGarbage(Heap::kNoGCFlags); |
| |
| CHECK_NE(old_ptr, *object); |
| CHECK_EQ(*object, array->get_heap_ptr_entry(0)); |
| CHECK_EQ(*object, array->get_heap_ptr_entry(1)); |
| } |