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Unified Diff: test/cctest/test-heap.cc

Issue 1512553002: [cctest] Move most heap related tests to test/cctest/heap and clean wrt IWYU (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fixed compile time error due to missing header file Created 5 years ago
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Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
deleted file mode 100644
index e5aa605c8fa68179becb1fb10a29d5efc7c8ad3e..0000000000000000000000000000000000000000
--- a/test/cctest/test-heap.cc
+++ /dev/null
@@ -1,6450 +0,0 @@
-// Copyright 2012 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// TODO(jochen): Remove this after the setting is turned on globally.
-#define V8_IMMINENT_DEPRECATION_WARNINGS
-
-#include <stdlib.h>
-#include <utility>
-
-#include "src/compilation-cache.h"
-#include "src/context-measure.h"
-#include "src/deoptimizer.h"
-#include "src/execution.h"
-#include "src/factory.h"
-#include "src/global-handles.h"
-#include "src/heap/gc-tracer.h"
-#include "src/heap/memory-reducer.h"
-#include "src/ic/ic.h"
-#include "src/macro-assembler.h"
-#include "src/snapshot/snapshot.h"
-#include "test/cctest/cctest.h"
-#include "test/cctest/heap-tester.h"
-#include "test/cctest/test-feedback-vector.h"
-
-
-namespace v8 {
-namespace internal {
-
-static void CheckMap(Map* map, int type, int instance_size) {
- CHECK(map->IsHeapObject());
-#ifdef DEBUG
- CHECK(CcTest::heap()->Contains(map));
-#endif
- CHECK_EQ(CcTest::heap()->meta_map(), map->map());
- CHECK_EQ(type, map->instance_type());
- CHECK_EQ(instance_size, map->instance_size());
-}
-
-
-TEST(HeapMaps) {
- CcTest::InitializeVM();
- Heap* heap = CcTest::heap();
- CheckMap(heap->meta_map(), MAP_TYPE, Map::kSize);
- CheckMap(heap->heap_number_map(), HEAP_NUMBER_TYPE, HeapNumber::kSize);
-#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \
- CheckMap(heap->type##_map(), SIMD128_VALUE_TYPE, Type::kSize);
- SIMD128_TYPES(SIMD128_TYPE)
-#undef SIMD128_TYPE
- CheckMap(heap->fixed_array_map(), FIXED_ARRAY_TYPE, kVariableSizeSentinel);
- CheckMap(heap->string_map(), STRING_TYPE, kVariableSizeSentinel);
-}
-
-
-static void CheckOddball(Isolate* isolate, Object* obj, const char* string) {
- CHECK(obj->IsOddball());
- Handle<Object> handle(obj, isolate);
- Object* print_string = *Object::ToString(isolate, handle).ToHandleChecked();
- CHECK(String::cast(print_string)->IsUtf8EqualTo(CStrVector(string)));
-}
-
-
-static void CheckSmi(Isolate* isolate, int value, const char* string) {
- Handle<Object> handle(Smi::FromInt(value), isolate);
- Object* print_string = *Object::ToString(isolate, handle).ToHandleChecked();
- CHECK(String::cast(print_string)->IsUtf8EqualTo(CStrVector(string)));
-}
-
-
-static void CheckNumber(Isolate* isolate, double value, const char* string) {
- Handle<Object> number = isolate->factory()->NewNumber(value);
- CHECK(number->IsNumber());
- Handle<Object> print_string =
- Object::ToString(isolate, number).ToHandleChecked();
- CHECK(String::cast(*print_string)->IsUtf8EqualTo(CStrVector(string)));
-}
-
-
-static void CheckFindCodeObject(Isolate* isolate) {
- // Test FindCodeObject
-#define __ assm.
-
- Assembler assm(isolate, NULL, 0);
-
- __ nop(); // supported on all architectures
-
- CodeDesc desc;
- assm.GetCode(&desc);
- Handle<Code> code = isolate->factory()->NewCode(
- desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
- CHECK(code->IsCode());
-
- HeapObject* obj = HeapObject::cast(*code);
- Address obj_addr = obj->address();
-
- for (int i = 0; i < obj->Size(); i += kPointerSize) {
- Object* found = isolate->FindCodeObject(obj_addr + i);
- CHECK_EQ(*code, found);
- }
-
- Handle<Code> copy = isolate->factory()->NewCode(
- desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
- HeapObject* obj_copy = HeapObject::cast(*copy);
- Object* not_right = isolate->FindCodeObject(obj_copy->address() +
- obj_copy->Size() / 2);
- CHECK(not_right != *code);
-}
-
-
-TEST(HandleNull) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- HandleScope outer_scope(isolate);
- LocalContext context;
- Handle<Object> n(static_cast<Object*>(nullptr), isolate);
- CHECK(!n.is_null());
-}
-
-
-TEST(HeapObjects) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
-
- HandleScope sc(isolate);
- Handle<Object> value = factory->NewNumber(1.000123);
- CHECK(value->IsHeapNumber());
- CHECK(value->IsNumber());
- CHECK_EQ(1.000123, value->Number());
-
- value = factory->NewNumber(1.0);
- CHECK(value->IsSmi());
- CHECK(value->IsNumber());
- CHECK_EQ(1.0, value->Number());
-
- value = factory->NewNumberFromInt(1024);
- CHECK(value->IsSmi());
- CHECK(value->IsNumber());
- CHECK_EQ(1024.0, value->Number());
-
- value = factory->NewNumberFromInt(Smi::kMinValue);
- CHECK(value->IsSmi());
- CHECK(value->IsNumber());
- CHECK_EQ(Smi::kMinValue, Handle<Smi>::cast(value)->value());
-
- value = factory->NewNumberFromInt(Smi::kMaxValue);
- CHECK(value->IsSmi());
- CHECK(value->IsNumber());
- CHECK_EQ(Smi::kMaxValue, Handle<Smi>::cast(value)->value());
-
-#if !defined(V8_TARGET_ARCH_64_BIT)
- // TODO(lrn): We need a NumberFromIntptr function in order to test this.
- value = factory->NewNumberFromInt(Smi::kMinValue - 1);
- CHECK(value->IsHeapNumber());
- CHECK(value->IsNumber());
- CHECK_EQ(static_cast<double>(Smi::kMinValue - 1), value->Number());
-#endif
-
- value = factory->NewNumberFromUint(static_cast<uint32_t>(Smi::kMaxValue) + 1);
- CHECK(value->IsHeapNumber());
- CHECK(value->IsNumber());
- CHECK_EQ(static_cast<double>(static_cast<uint32_t>(Smi::kMaxValue) + 1),
- value->Number());
-
- value = factory->NewNumberFromUint(static_cast<uint32_t>(1) << 31);
- CHECK(value->IsHeapNumber());
- CHECK(value->IsNumber());
- CHECK_EQ(static_cast<double>(static_cast<uint32_t>(1) << 31),
- value->Number());
-
- // nan oddball checks
- CHECK(factory->nan_value()->IsNumber());
- CHECK(std::isnan(factory->nan_value()->Number()));
-
- Handle<String> s = factory->NewStringFromStaticChars("fisk hest ");
- CHECK(s->IsString());
- CHECK_EQ(10, s->length());
-
- Handle<String> object_string = Handle<String>::cast(factory->Object_string());
- Handle<JSGlobalObject> global(
- CcTest::i_isolate()->context()->global_object());
- CHECK(Just(true) == JSReceiver::HasOwnProperty(global, object_string));
-
- // Check ToString for oddballs
- CheckOddball(isolate, heap->true_value(), "true");
- CheckOddball(isolate, heap->false_value(), "false");
- CheckOddball(isolate, heap->null_value(), "null");
- CheckOddball(isolate, heap->undefined_value(), "undefined");
-
- // Check ToString for Smis
- CheckSmi(isolate, 0, "0");
- CheckSmi(isolate, 42, "42");
- CheckSmi(isolate, -42, "-42");
-
- // Check ToString for Numbers
- CheckNumber(isolate, 1.1, "1.1");
-
- CheckFindCodeObject(isolate);
-}
-
-
-template <typename T, typename LANE_TYPE, int LANES>
-static void CheckSimdValue(T* value, LANE_TYPE lane_values[LANES],
- LANE_TYPE other_value) {
- // Check against lane_values, and check that all lanes can be set to
- // other_value without disturbing the other lanes.
- for (int i = 0; i < LANES; i++) {
- CHECK_EQ(lane_values[i], value->get_lane(i));
- }
- for (int i = 0; i < LANES; i++) {
- value->set_lane(i, other_value); // change the value
- for (int j = 0; j < LANES; j++) {
- if (i != j)
- CHECK_EQ(lane_values[j], value->get_lane(j));
- else
- CHECK_EQ(other_value, value->get_lane(j));
- }
- value->set_lane(i, lane_values[i]); // restore the lane
- }
- CHECK(value->BooleanValue()); // SIMD values are 'true'.
-}
-
-
-TEST(SimdObjects) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- HandleScope sc(isolate);
-
- // Float32x4
- {
- float lanes[4] = {1, 2, 3, 4};
- float quiet_NaN = std::numeric_limits<float>::quiet_NaN();
- float signaling_NaN = std::numeric_limits<float>::signaling_NaN();
-
- Handle<Float32x4> value = factory->NewFloat32x4(lanes);
- CHECK(value->IsFloat32x4());
- CheckSimdValue<Float32x4, float, 4>(*value, lanes, 3.14f);
-
- // Check special lane values.
- value->set_lane(1, -0.0);
- CHECK_EQ(-0.0f, value->get_lane(1));
- CHECK(std::signbit(value->get_lane(1))); // Sign bit should be preserved.
- value->set_lane(2, quiet_NaN);
- CHECK(std::isnan(value->get_lane(2)));
- value->set_lane(3, signaling_NaN);
- CHECK(std::isnan(value->get_lane(3)));
-
-#ifdef OBJECT_PRINT
- // Check value printing.
- {
- value = factory->NewFloat32x4(lanes);
- std::ostringstream os;
- value->Float32x4Print(os);
- CHECK_EQ("1, 2, 3, 4", os.str());
- }
- {
- float special_lanes[4] = {0, -0.0, quiet_NaN, signaling_NaN};
- value = factory->NewFloat32x4(special_lanes);
- std::ostringstream os;
- value->Float32x4Print(os);
- // Value printing doesn't preserve signed zeroes.
- CHECK_EQ("0, 0, NaN, NaN", os.str());
- }
-#endif // OBJECT_PRINT
- }
- // Int32x4
- {
- int32_t lanes[4] = {1, 2, 3, 4};
-
- Handle<Int32x4> value = factory->NewInt32x4(lanes);
- CHECK(value->IsInt32x4());
- CheckSimdValue<Int32x4, int32_t, 4>(*value, lanes, 3);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Int32x4Print(os);
- CHECK_EQ("1, 2, 3, 4", os.str());
-#endif // OBJECT_PRINT
- }
- // Uint32x4
- {
- uint32_t lanes[4] = {1, 2, 3, 4};
-
- Handle<Uint32x4> value = factory->NewUint32x4(lanes);
- CHECK(value->IsUint32x4());
- CheckSimdValue<Uint32x4, uint32_t, 4>(*value, lanes, 3);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Uint32x4Print(os);
- CHECK_EQ("1, 2, 3, 4", os.str());
-#endif // OBJECT_PRINT
- }
- // Bool32x4
- {
- bool lanes[4] = {true, false, true, false};
-
- Handle<Bool32x4> value = factory->NewBool32x4(lanes);
- CHECK(value->IsBool32x4());
- CheckSimdValue<Bool32x4, bool, 4>(*value, lanes, false);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Bool32x4Print(os);
- CHECK_EQ("true, false, true, false", os.str());
-#endif // OBJECT_PRINT
- }
- // Int16x8
- {
- int16_t lanes[8] = {1, 2, 3, 4, 5, 6, 7, 8};
-
- Handle<Int16x8> value = factory->NewInt16x8(lanes);
- CHECK(value->IsInt16x8());
- CheckSimdValue<Int16x8, int16_t, 8>(*value, lanes, 32767);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Int16x8Print(os);
- CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8", os.str());
-#endif // OBJECT_PRINT
- }
- // Uint16x8
- {
- uint16_t lanes[8] = {1, 2, 3, 4, 5, 6, 7, 8};
-
- Handle<Uint16x8> value = factory->NewUint16x8(lanes);
- CHECK(value->IsUint16x8());
- CheckSimdValue<Uint16x8, uint16_t, 8>(*value, lanes, 32767);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Uint16x8Print(os);
- CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8", os.str());
-#endif // OBJECT_PRINT
- }
- // Bool16x8
- {
- bool lanes[8] = {true, false, true, false, true, false, true, false};
-
- Handle<Bool16x8> value = factory->NewBool16x8(lanes);
- CHECK(value->IsBool16x8());
- CheckSimdValue<Bool16x8, bool, 8>(*value, lanes, false);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Bool16x8Print(os);
- CHECK_EQ("true, false, true, false, true, false, true, false", os.str());
-#endif // OBJECT_PRINT
- }
- // Int8x16
- {
- int8_t lanes[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
-
- Handle<Int8x16> value = factory->NewInt8x16(lanes);
- CHECK(value->IsInt8x16());
- CheckSimdValue<Int8x16, int8_t, 16>(*value, lanes, 127);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Int8x16Print(os);
- CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16", os.str());
-#endif // OBJECT_PRINT
- }
- // Uint8x16
- {
- uint8_t lanes[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
-
- Handle<Uint8x16> value = factory->NewUint8x16(lanes);
- CHECK(value->IsUint8x16());
- CheckSimdValue<Uint8x16, uint8_t, 16>(*value, lanes, 127);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Uint8x16Print(os);
- CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16", os.str());
-#endif // OBJECT_PRINT
- }
- // Bool8x16
- {
- bool lanes[16] = {true, false, true, false, true, false, true, false,
- true, false, true, false, true, false, true, false};
-
- Handle<Bool8x16> value = factory->NewBool8x16(lanes);
- CHECK(value->IsBool8x16());
- CheckSimdValue<Bool8x16, bool, 16>(*value, lanes, false);
-
-#ifdef OBJECT_PRINT
- std::ostringstream os;
- value->Bool8x16Print(os);
- CHECK_EQ(
- "true, false, true, false, true, false, true, false, true, false, "
- "true, false, true, false, true, false",
- os.str());
-#endif // OBJECT_PRINT
- }
-}
-
-
-TEST(Tagging) {
- CcTest::InitializeVM();
- int request = 24;
- CHECK_EQ(request, static_cast<int>(OBJECT_POINTER_ALIGN(request)));
- CHECK(Smi::FromInt(42)->IsSmi());
- CHECK(Smi::FromInt(Smi::kMinValue)->IsSmi());
- CHECK(Smi::FromInt(Smi::kMaxValue)->IsSmi());
-}
-
-
-TEST(GarbageCollection) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
-
- HandleScope sc(isolate);
- // Check GC.
- heap->CollectGarbage(NEW_SPACE);
-
- Handle<JSGlobalObject> global(
- CcTest::i_isolate()->context()->global_object());
- Handle<String> name = factory->InternalizeUtf8String("theFunction");
- Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
- Handle<String> prop_namex = factory->InternalizeUtf8String("theSlotx");
- Handle<String> obj_name = factory->InternalizeUtf8String("theObject");
- Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
- Handle<Smi> twenty_four(Smi::FromInt(24), isolate);
-
- {
- HandleScope inner_scope(isolate);
- // Allocate a function and keep it in global object's property.
- Handle<JSFunction> function = factory->NewFunction(name);
- JSReceiver::SetProperty(global, name, function, SLOPPY).Check();
- // Allocate an object. Unrooted after leaving the scope.
- Handle<JSObject> obj = factory->NewJSObject(function);
- JSReceiver::SetProperty(obj, prop_name, twenty_three, SLOPPY).Check();
- JSReceiver::SetProperty(obj, prop_namex, twenty_four, SLOPPY).Check();
-
- CHECK_EQ(Smi::FromInt(23),
- *Object::GetProperty(obj, prop_name).ToHandleChecked());
- CHECK_EQ(Smi::FromInt(24),
- *Object::GetProperty(obj, prop_namex).ToHandleChecked());
- }
-
- heap->CollectGarbage(NEW_SPACE);
-
- // Function should be alive.
- CHECK(Just(true) == JSReceiver::HasOwnProperty(global, name));
- // Check function is retained.
- Handle<Object> func_value =
- Object::GetProperty(global, name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
-
- {
- HandleScope inner_scope(isolate);
- // Allocate another object, make it reachable from global.
- Handle<JSObject> obj = factory->NewJSObject(function);
- JSReceiver::SetProperty(global, obj_name, obj, SLOPPY).Check();
- JSReceiver::SetProperty(obj, prop_name, twenty_three, SLOPPY).Check();
- }
-
- // After gc, it should survive.
- heap->CollectGarbage(NEW_SPACE);
-
- CHECK(Just(true) == JSReceiver::HasOwnProperty(global, obj_name));
- Handle<Object> obj =
- Object::GetProperty(global, obj_name).ToHandleChecked();
- CHECK(obj->IsJSObject());
- CHECK_EQ(Smi::FromInt(23),
- *Object::GetProperty(obj, prop_name).ToHandleChecked());
-}
-
-
-static void VerifyStringAllocation(Isolate* isolate, const char* string) {
- HandleScope scope(isolate);
- Handle<String> s = isolate->factory()->NewStringFromUtf8(
- CStrVector(string)).ToHandleChecked();
- CHECK_EQ(StrLength(string), s->length());
- for (int index = 0; index < s->length(); index++) {
- CHECK_EQ(static_cast<uint16_t>(string[index]), s->Get(index));
- }
-}
-
-
-TEST(String) {
- CcTest::InitializeVM();
- Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
-
- VerifyStringAllocation(isolate, "a");
- VerifyStringAllocation(isolate, "ab");
- VerifyStringAllocation(isolate, "abc");
- VerifyStringAllocation(isolate, "abcd");
- VerifyStringAllocation(isolate, "fiskerdrengen er paa havet");
-}
-
-
-TEST(LocalHandles) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope scope(CcTest::isolate());
- const char* name = "Kasper the spunky";
- Handle<String> string = factory->NewStringFromAsciiChecked(name);
- CHECK_EQ(StrLength(name), string->length());
-}
-
-
-TEST(GlobalHandles) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- GlobalHandles* global_handles = isolate->global_handles();
-
- Handle<Object> h1;
- Handle<Object> h2;
- Handle<Object> h3;
- Handle<Object> h4;
-
- {
- HandleScope scope(isolate);
-
- Handle<Object> i = factory->NewStringFromStaticChars("fisk");
- Handle<Object> u = factory->NewNumber(1.12344);
-
- h1 = global_handles->Create(*i);
- h2 = global_handles->Create(*u);
- h3 = global_handles->Create(*i);
- h4 = global_handles->Create(*u);
- }
-
- // after gc, it should survive
- heap->CollectGarbage(NEW_SPACE);
-
- CHECK((*h1)->IsString());
- CHECK((*h2)->IsHeapNumber());
- CHECK((*h3)->IsString());
- CHECK((*h4)->IsHeapNumber());
-
- CHECK_EQ(*h3, *h1);
- GlobalHandles::Destroy(h1.location());
- GlobalHandles::Destroy(h3.location());
-
- CHECK_EQ(*h4, *h2);
- GlobalHandles::Destroy(h2.location());
- GlobalHandles::Destroy(h4.location());
-}
-
-
-static bool WeakPointerCleared = false;
-
-static void TestWeakGlobalHandleCallback(
- const v8::WeakCallbackData<v8::Value, void>& data) {
- std::pair<v8::Persistent<v8::Value>*, int>* p =
- reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>(
- data.GetParameter());
- if (p->second == 1234) WeakPointerCleared = true;
- p->first->Reset();
-}
-
-
-TEST(WeakGlobalHandlesScavenge) {
- i::FLAG_stress_compaction = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- GlobalHandles* global_handles = isolate->global_handles();
-
- WeakPointerCleared = false;
-
- Handle<Object> h1;
- Handle<Object> h2;
-
- {
- HandleScope scope(isolate);
-
- Handle<Object> i = factory->NewStringFromStaticChars("fisk");
- Handle<Object> u = factory->NewNumber(1.12344);
-
- h1 = global_handles->Create(*i);
- h2 = global_handles->Create(*u);
- }
-
- std::pair<Handle<Object>*, int> handle_and_id(&h2, 1234);
- GlobalHandles::MakeWeak(h2.location(),
- reinterpret_cast<void*>(&handle_and_id),
- &TestWeakGlobalHandleCallback);
-
- // Scavenge treats weak pointers as normal roots.
- heap->CollectGarbage(NEW_SPACE);
-
- CHECK((*h1)->IsString());
- CHECK((*h2)->IsHeapNumber());
-
- CHECK(!WeakPointerCleared);
- CHECK(!global_handles->IsNearDeath(h2.location()));
- CHECK(!global_handles->IsNearDeath(h1.location()));
-
- GlobalHandles::Destroy(h1.location());
- GlobalHandles::Destroy(h2.location());
-}
-
-
-TEST(WeakGlobalHandlesMark) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- GlobalHandles* global_handles = isolate->global_handles();
-
- WeakPointerCleared = false;
-
- Handle<Object> h1;
- Handle<Object> h2;
-
- {
- HandleScope scope(isolate);
-
- Handle<Object> i = factory->NewStringFromStaticChars("fisk");
- Handle<Object> u = factory->NewNumber(1.12344);
-
- h1 = global_handles->Create(*i);
- h2 = global_handles->Create(*u);
- }
-
- // Make sure the objects are promoted.
- heap->CollectGarbage(OLD_SPACE);
- heap->CollectGarbage(NEW_SPACE);
- CHECK(!heap->InNewSpace(*h1) && !heap->InNewSpace(*h2));
-
- std::pair<Handle<Object>*, int> handle_and_id(&h2, 1234);
- GlobalHandles::MakeWeak(h2.location(),
- reinterpret_cast<void*>(&handle_and_id),
- &TestWeakGlobalHandleCallback);
- CHECK(!GlobalHandles::IsNearDeath(h1.location()));
- CHECK(!GlobalHandles::IsNearDeath(h2.location()));
-
- // Incremental marking potentially marked handles before they turned weak.
- heap->CollectAllGarbage();
-
- CHECK((*h1)->IsString());
-
- CHECK(WeakPointerCleared);
- CHECK(!GlobalHandles::IsNearDeath(h1.location()));
-
- GlobalHandles::Destroy(h1.location());
-}
-
-
-TEST(DeleteWeakGlobalHandle) {
- i::FLAG_stress_compaction = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- GlobalHandles* global_handles = isolate->global_handles();
-
- WeakPointerCleared = false;
-
- Handle<Object> h;
-
- {
- HandleScope scope(isolate);
-
- Handle<Object> i = factory->NewStringFromStaticChars("fisk");
- h = global_handles->Create(*i);
- }
-
- std::pair<Handle<Object>*, int> handle_and_id(&h, 1234);
- GlobalHandles::MakeWeak(h.location(),
- reinterpret_cast<void*>(&handle_and_id),
- &TestWeakGlobalHandleCallback);
-
- // Scanvenge does not recognize weak reference.
- heap->CollectGarbage(NEW_SPACE);
-
- CHECK(!WeakPointerCleared);
-
- // Mark-compact treats weak reference properly.
- heap->CollectGarbage(OLD_SPACE);
-
- CHECK(WeakPointerCleared);
-}
-
-
-TEST(BytecodeArray) {
- static const uint8_t kRawBytes[] = {0xc3, 0x7e, 0xa5, 0x5a};
- static const int kRawBytesSize = sizeof(kRawBytes);
- static const int kFrameSize = 32;
- static const int kParameterCount = 2;
-
- i::FLAG_manual_evacuation_candidates_selection = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- HandleScope scope(isolate);
-
- SimulateFullSpace(heap->old_space());
- Handle<FixedArray> constant_pool = factory->NewFixedArray(5, TENURED);
- for (int i = 0; i < 5; i++) {
- Handle<Object> number = factory->NewHeapNumber(i);
- constant_pool->set(i, *number);
- }
-
- // Allocate and initialize BytecodeArray
- Handle<BytecodeArray> array = factory->NewBytecodeArray(
- kRawBytesSize, kRawBytes, kFrameSize, kParameterCount, constant_pool);
-
- CHECK(array->IsBytecodeArray());
- CHECK_EQ(array->length(), (int)sizeof(kRawBytes));
- CHECK_EQ(array->frame_size(), kFrameSize);
- CHECK_EQ(array->parameter_count(), kParameterCount);
- CHECK_EQ(array->constant_pool(), *constant_pool);
- CHECK_LE(array->address(), array->GetFirstBytecodeAddress());
- CHECK_GE(array->address() + array->BytecodeArraySize(),
- array->GetFirstBytecodeAddress() + array->length());
- for (int i = 0; i < kRawBytesSize; i++) {
- CHECK_EQ(array->GetFirstBytecodeAddress()[i], kRawBytes[i]);
- CHECK_EQ(array->get(i), kRawBytes[i]);
- }
-
- FixedArray* old_constant_pool_address = *constant_pool;
-
- // Perform a full garbage collection and force the constant pool to be on an
- // evacuation candidate.
- Page* evac_page = Page::FromAddress(constant_pool->address());
- evac_page->SetFlag(MemoryChunk::FORCE_EVACUATION_CANDIDATE_FOR_TESTING);
- heap->CollectAllGarbage();
-
- // BytecodeArray should survive.
- CHECK_EQ(array->length(), kRawBytesSize);
- CHECK_EQ(array->frame_size(), kFrameSize);
- for (int i = 0; i < kRawBytesSize; i++) {
- CHECK_EQ(array->get(i), kRawBytes[i]);
- CHECK_EQ(array->GetFirstBytecodeAddress()[i], kRawBytes[i]);
- }
-
- // Constant pool should have been migrated.
- CHECK_EQ(array->constant_pool(), *constant_pool);
- CHECK_NE(array->constant_pool(), old_constant_pool_address);
-}
-
-
-static const char* not_so_random_string_table[] = {
- "abstract",
- "boolean",
- "break",
- "byte",
- "case",
- "catch",
- "char",
- "class",
- "const",
- "continue",
- "debugger",
- "default",
- "delete",
- "do",
- "double",
- "else",
- "enum",
- "export",
- "extends",
- "false",
- "final",
- "finally",
- "float",
- "for",
- "function",
- "goto",
- "if",
- "implements",
- "import",
- "in",
- "instanceof",
- "int",
- "interface",
- "long",
- "native",
- "new",
- "null",
- "package",
- "private",
- "protected",
- "public",
- "return",
- "short",
- "static",
- "super",
- "switch",
- "synchronized",
- "this",
- "throw",
- "throws",
- "transient",
- "true",
- "try",
- "typeof",
- "var",
- "void",
- "volatile",
- "while",
- "with",
- 0
-};
-
-
-static void CheckInternalizedStrings(const char** strings) {
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- for (const char* string = *strings; *strings != 0; string = *strings++) {
- HandleScope scope(isolate);
- Handle<String> a =
- isolate->factory()->InternalizeUtf8String(CStrVector(string));
- // InternalizeUtf8String may return a failure if a GC is needed.
- CHECK(a->IsInternalizedString());
- Handle<String> b = factory->InternalizeUtf8String(string);
- CHECK_EQ(*b, *a);
- CHECK(b->IsUtf8EqualTo(CStrVector(string)));
- b = isolate->factory()->InternalizeUtf8String(CStrVector(string));
- CHECK_EQ(*b, *a);
- CHECK(b->IsUtf8EqualTo(CStrVector(string)));
- }
-}
-
-
-TEST(StringTable) {
- CcTest::InitializeVM();
-
- v8::HandleScope sc(CcTest::isolate());
- CheckInternalizedStrings(not_so_random_string_table);
- CheckInternalizedStrings(not_so_random_string_table);
-}
-
-
-TEST(FunctionAllocation) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope sc(CcTest::isolate());
- Handle<String> name = factory->InternalizeUtf8String("theFunction");
- Handle<JSFunction> function = factory->NewFunction(name);
-
- Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
- Handle<Smi> twenty_four(Smi::FromInt(24), isolate);
-
- Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
- Handle<JSObject> obj = factory->NewJSObject(function);
- JSReceiver::SetProperty(obj, prop_name, twenty_three, SLOPPY).Check();
- CHECK_EQ(Smi::FromInt(23),
- *Object::GetProperty(obj, prop_name).ToHandleChecked());
- // Check that we can add properties to function objects.
- JSReceiver::SetProperty(function, prop_name, twenty_four, SLOPPY).Check();
- CHECK_EQ(Smi::FromInt(24),
- *Object::GetProperty(function, prop_name).ToHandleChecked());
-}
-
-
-TEST(ObjectProperties) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope sc(CcTest::isolate());
- Handle<String> object_string(String::cast(CcTest::heap()->Object_string()));
- Handle<Object> object = Object::GetProperty(
- CcTest::i_isolate()->global_object(), object_string).ToHandleChecked();
- Handle<JSFunction> constructor = Handle<JSFunction>::cast(object);
- Handle<JSObject> obj = factory->NewJSObject(constructor);
- Handle<String> first = factory->InternalizeUtf8String("first");
- Handle<String> second = factory->InternalizeUtf8String("second");
-
- Handle<Smi> one(Smi::FromInt(1), isolate);
- Handle<Smi> two(Smi::FromInt(2), isolate);
-
- // check for empty
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, first));
-
- // add first
- JSReceiver::SetProperty(obj, first, one, SLOPPY).Check();
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, first));
-
- // delete first
- CHECK(Just(true) == JSReceiver::DeleteProperty(obj, first, SLOPPY));
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, first));
-
- // add first and then second
- JSReceiver::SetProperty(obj, first, one, SLOPPY).Check();
- JSReceiver::SetProperty(obj, second, two, SLOPPY).Check();
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, first));
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, second));
-
- // delete first and then second
- CHECK(Just(true) == JSReceiver::DeleteProperty(obj, first, SLOPPY));
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, second));
- CHECK(Just(true) == JSReceiver::DeleteProperty(obj, second, SLOPPY));
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, first));
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, second));
-
- // add first and then second
- JSReceiver::SetProperty(obj, first, one, SLOPPY).Check();
- JSReceiver::SetProperty(obj, second, two, SLOPPY).Check();
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, first));
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, second));
-
- // delete second and then first
- CHECK(Just(true) == JSReceiver::DeleteProperty(obj, second, SLOPPY));
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, first));
- CHECK(Just(true) == JSReceiver::DeleteProperty(obj, first, SLOPPY));
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, first));
- CHECK(Just(false) == JSReceiver::HasOwnProperty(obj, second));
-
- // check string and internalized string match
- const char* string1 = "fisk";
- Handle<String> s1 = factory->NewStringFromAsciiChecked(string1);
- JSReceiver::SetProperty(obj, s1, one, SLOPPY).Check();
- Handle<String> s1_string = factory->InternalizeUtf8String(string1);
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, s1_string));
-
- // check internalized string and string match
- const char* string2 = "fugl";
- Handle<String> s2_string = factory->InternalizeUtf8String(string2);
- JSReceiver::SetProperty(obj, s2_string, one, SLOPPY).Check();
- Handle<String> s2 = factory->NewStringFromAsciiChecked(string2);
- CHECK(Just(true) == JSReceiver::HasOwnProperty(obj, s2));
-}
-
-
-TEST(JSObjectMaps) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope sc(CcTest::isolate());
- Handle<String> name = factory->InternalizeUtf8String("theFunction");
- Handle<JSFunction> function = factory->NewFunction(name);
-
- Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
- Handle<JSObject> obj = factory->NewJSObject(function);
- Handle<Map> initial_map(function->initial_map());
-
- // Set a propery
- Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
- JSReceiver::SetProperty(obj, prop_name, twenty_three, SLOPPY).Check();
- CHECK_EQ(Smi::FromInt(23),
- *Object::GetProperty(obj, prop_name).ToHandleChecked());
-
- // Check the map has changed
- CHECK(*initial_map != obj->map());
-}
-
-
-TEST(JSArray) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope sc(CcTest::isolate());
- Handle<String> name = factory->InternalizeUtf8String("Array");
- Handle<Object> fun_obj = Object::GetProperty(
- CcTest::i_isolate()->global_object(), name).ToHandleChecked();
- Handle<JSFunction> function = Handle<JSFunction>::cast(fun_obj);
-
- // Allocate the object.
- Handle<Object> element;
- Handle<JSObject> object = factory->NewJSObject(function);
- Handle<JSArray> array = Handle<JSArray>::cast(object);
- // We just initialized the VM, no heap allocation failure yet.
- JSArray::Initialize(array, 0);
-
- // Set array length to 0.
- JSArray::SetLength(array, 0);
- CHECK_EQ(Smi::FromInt(0), array->length());
- // Must be in fast mode.
- CHECK(array->HasFastSmiOrObjectElements());
-
- // array[length] = name.
- JSReceiver::SetElement(isolate, array, 0, name, SLOPPY).Check();
- CHECK_EQ(Smi::FromInt(1), array->length());
- element = i::Object::GetElement(isolate, array, 0).ToHandleChecked();
- CHECK_EQ(*element, *name);
-
- // Set array length with larger than smi value.
- JSArray::SetLength(array, static_cast<uint32_t>(Smi::kMaxValue) + 1);
-
- uint32_t int_length = 0;
- CHECK(array->length()->ToArrayIndex(&int_length));
- CHECK_EQ(static_cast<uint32_t>(Smi::kMaxValue) + 1, int_length);
- CHECK(array->HasDictionaryElements()); // Must be in slow mode.
-
- // array[length] = name.
- JSReceiver::SetElement(isolate, array, int_length, name, SLOPPY).Check();
- uint32_t new_int_length = 0;
- CHECK(array->length()->ToArrayIndex(&new_int_length));
- CHECK_EQ(static_cast<double>(int_length), new_int_length - 1);
- element = Object::GetElement(isolate, array, int_length).ToHandleChecked();
- CHECK_EQ(*element, *name);
- element = Object::GetElement(isolate, array, 0).ToHandleChecked();
- CHECK_EQ(*element, *name);
-}
-
-
-TEST(JSObjectCopy) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- v8::HandleScope sc(CcTest::isolate());
- Handle<String> object_string(String::cast(CcTest::heap()->Object_string()));
- Handle<Object> object = Object::GetProperty(
- CcTest::i_isolate()->global_object(), object_string).ToHandleChecked();
- Handle<JSFunction> constructor = Handle<JSFunction>::cast(object);
- Handle<JSObject> obj = factory->NewJSObject(constructor);
- Handle<String> first = factory->InternalizeUtf8String("first");
- Handle<String> second = factory->InternalizeUtf8String("second");
-
- Handle<Smi> one(Smi::FromInt(1), isolate);
- Handle<Smi> two(Smi::FromInt(2), isolate);
-
- JSReceiver::SetProperty(obj, first, one, SLOPPY).Check();
- JSReceiver::SetProperty(obj, second, two, SLOPPY).Check();
-
- JSReceiver::SetElement(isolate, obj, 0, first, SLOPPY).Check();
- JSReceiver::SetElement(isolate, obj, 1, second, SLOPPY).Check();
-
- // Make the clone.
- Handle<Object> value1, value2;
- Handle<JSObject> clone = factory->CopyJSObject(obj);
- CHECK(!clone.is_identical_to(obj));
-
- value1 = Object::GetElement(isolate, obj, 0).ToHandleChecked();
- value2 = Object::GetElement(isolate, clone, 0).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
- value1 = Object::GetElement(isolate, obj, 1).ToHandleChecked();
- value2 = Object::GetElement(isolate, clone, 1).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
-
- value1 = Object::GetProperty(obj, first).ToHandleChecked();
- value2 = Object::GetProperty(clone, first).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
- value1 = Object::GetProperty(obj, second).ToHandleChecked();
- value2 = Object::GetProperty(clone, second).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
-
- // Flip the values.
- JSReceiver::SetProperty(clone, first, two, SLOPPY).Check();
- JSReceiver::SetProperty(clone, second, one, SLOPPY).Check();
-
- JSReceiver::SetElement(isolate, clone, 0, second, SLOPPY).Check();
- JSReceiver::SetElement(isolate, clone, 1, first, SLOPPY).Check();
-
- value1 = Object::GetElement(isolate, obj, 1).ToHandleChecked();
- value2 = Object::GetElement(isolate, clone, 0).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
- value1 = Object::GetElement(isolate, obj, 0).ToHandleChecked();
- value2 = Object::GetElement(isolate, clone, 1).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
-
- value1 = Object::GetProperty(obj, second).ToHandleChecked();
- value2 = Object::GetProperty(clone, first).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
- value1 = Object::GetProperty(obj, first).ToHandleChecked();
- value2 = Object::GetProperty(clone, second).ToHandleChecked();
- CHECK_EQ(*value1, *value2);
-}
-
-
-TEST(StringAllocation) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
-
- const unsigned char chars[] = { 0xe5, 0xa4, 0xa7 };
- for (int length = 0; length < 100; length++) {
- v8::HandleScope scope(CcTest::isolate());
- char* non_one_byte = NewArray<char>(3 * length + 1);
- char* one_byte = NewArray<char>(length + 1);
- non_one_byte[3 * length] = 0;
- one_byte[length] = 0;
- for (int i = 0; i < length; i++) {
- one_byte[i] = 'a';
- non_one_byte[3 * i] = chars[0];
- non_one_byte[3 * i + 1] = chars[1];
- non_one_byte[3 * i + 2] = chars[2];
- }
- Handle<String> non_one_byte_sym = factory->InternalizeUtf8String(
- Vector<const char>(non_one_byte, 3 * length));
- CHECK_EQ(length, non_one_byte_sym->length());
- Handle<String> one_byte_sym =
- factory->InternalizeOneByteString(OneByteVector(one_byte, length));
- CHECK_EQ(length, one_byte_sym->length());
- Handle<String> non_one_byte_str =
- factory->NewStringFromUtf8(Vector<const char>(non_one_byte, 3 * length))
- .ToHandleChecked();
- non_one_byte_str->Hash();
- CHECK_EQ(length, non_one_byte_str->length());
- Handle<String> one_byte_str =
- factory->NewStringFromUtf8(Vector<const char>(one_byte, length))
- .ToHandleChecked();
- one_byte_str->Hash();
- CHECK_EQ(length, one_byte_str->length());
- DeleteArray(non_one_byte);
- DeleteArray(one_byte);
- }
-}
-
-
-static int ObjectsFoundInHeap(Heap* heap, Handle<Object> objs[], int size) {
- // Count the number of objects found in the heap.
- int found_count = 0;
- HeapIterator iterator(heap);
- for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
- for (int i = 0; i < size; i++) {
- if (*objs[i] == obj) {
- found_count++;
- }
- }
- }
- return found_count;
-}
-
-
-TEST(Iteration) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
-
- // Array of objects to scan haep for.
- const int objs_count = 6;
- Handle<Object> objs[objs_count];
- int next_objs_index = 0;
-
- // Allocate a JS array to OLD_SPACE and NEW_SPACE
- objs[next_objs_index++] = factory->NewJSArray(10);
- objs[next_objs_index++] =
- factory->NewJSArray(10, FAST_HOLEY_ELEMENTS, Strength::WEAK, TENURED);
-
- // Allocate a small string to OLD_DATA_SPACE and NEW_SPACE
- objs[next_objs_index++] = factory->NewStringFromStaticChars("abcdefghij");
- objs[next_objs_index++] =
- factory->NewStringFromStaticChars("abcdefghij", TENURED);
-
- // Allocate a large string (for large object space).
- int large_size = Page::kMaxRegularHeapObjectSize + 1;
- char* str = new char[large_size];
- for (int i = 0; i < large_size - 1; ++i) str[i] = 'a';
- str[large_size - 1] = '\0';
- objs[next_objs_index++] = factory->NewStringFromAsciiChecked(str, TENURED);
- delete[] str;
-
- // Add a Map object to look for.
- objs[next_objs_index++] = Handle<Map>(HeapObject::cast(*objs[0])->map());
-
- CHECK_EQ(objs_count, next_objs_index);
- CHECK_EQ(objs_count, ObjectsFoundInHeap(CcTest::heap(), objs, objs_count));
-}
-
-
-UNINITIALIZED_TEST(TestCodeFlushing) {
- // If we do not flush code this test is invalid.
- if (!FLAG_flush_code) return;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_optimize_for_size = false;
- v8::Isolate::CreateParams create_params;
- create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
- v8::Isolate* isolate = v8::Isolate::New(create_params);
- i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
- isolate->Enter();
- Factory* factory = i_isolate->factory();
- {
- v8::HandleScope scope(isolate);
- v8::Context::New(isolate)->Enter();
- const char* source =
- "function foo() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo()";
- Handle<String> foo_name = factory->InternalizeUtf8String("foo");
-
- // This compile will add the code to the compilation cache.
- {
- v8::HandleScope scope(isolate);
- CompileRun(source);
- }
-
- // Check function is compiled.
- Handle<Object> func_value = Object::GetProperty(i_isolate->global_object(),
- foo_name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
- CHECK(function->shared()->is_compiled());
-
- // The code will survive at least two GCs.
- i_isolate->heap()->CollectAllGarbage();
- i_isolate->heap()->CollectAllGarbage();
- CHECK(function->shared()->is_compiled());
-
- // Simulate several GCs that use full marking.
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- i_isolate->heap()->CollectAllGarbage();
- }
-
- // foo should no longer be in the compilation cache
- CHECK(!function->shared()->is_compiled() || function->IsOptimized());
- CHECK(!function->is_compiled() || function->IsOptimized());
- // Call foo to get it recompiled.
- CompileRun("foo()");
- CHECK(function->shared()->is_compiled());
- CHECK(function->is_compiled());
- }
- isolate->Exit();
- isolate->Dispose();
-}
-
-
-TEST(TestCodeFlushingPreAged) {
- // If we do not flush code this test is invalid.
- if (!FLAG_flush_code) return;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_optimize_for_size = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
- const char* source = "function foo() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo()";
- Handle<String> foo_name = factory->InternalizeUtf8String("foo");
-
- // Compile foo, but don't run it.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun(source);
- }
-
- // Check function is compiled.
- Handle<Object> func_value =
- Object::GetProperty(isolate->global_object(), foo_name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
- CHECK(function->shared()->is_compiled());
-
- // The code has been run so will survive at least one GC.
- CcTest::heap()->CollectAllGarbage();
- CHECK(function->shared()->is_compiled());
-
- // The code was only run once, so it should be pre-aged and collected on the
- // next GC.
- CcTest::heap()->CollectAllGarbage();
- CHECK(!function->shared()->is_compiled() || function->IsOptimized());
-
- // Execute the function again twice, and ensure it is reset to the young age.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun("foo();"
- "foo();");
- }
-
- // The code will survive at least two GC now that it is young again.
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CHECK(function->shared()->is_compiled());
-
- // Simulate several GCs that use full marking.
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- CcTest::heap()->CollectAllGarbage();
- }
-
- // foo should no longer be in the compilation cache
- CHECK(!function->shared()->is_compiled() || function->IsOptimized());
- CHECK(!function->is_compiled() || function->IsOptimized());
- // Call foo to get it recompiled.
- CompileRun("foo()");
- CHECK(function->shared()->is_compiled());
- CHECK(function->is_compiled());
-}
-
-
-TEST(TestCodeFlushingIncremental) {
- // If we do not flush code this test is invalid.
- if (!FLAG_flush_code) return;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_optimize_for_size = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
- const char* source = "function foo() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo()";
- Handle<String> foo_name = factory->InternalizeUtf8String("foo");
-
- // This compile will add the code to the compilation cache.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun(source);
- }
-
- // Check function is compiled.
- Handle<Object> func_value =
- Object::GetProperty(isolate->global_object(), foo_name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
- CHECK(function->shared()->is_compiled());
-
- // The code will survive at least two GCs.
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CHECK(function->shared()->is_compiled());
-
- // Simulate several GCs that use incremental marking.
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
- }
- CHECK(!function->shared()->is_compiled() || function->IsOptimized());
- CHECK(!function->is_compiled() || function->IsOptimized());
-
- // This compile will compile the function again.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun("foo();");
- }
-
- // Simulate several GCs that use incremental marking but make sure
- // the loop breaks once the function is enqueued as a candidate.
- for (int i = 0; i < kAgingThreshold; i++) {
- SimulateIncrementalMarking(CcTest::heap());
- if (!function->next_function_link()->IsUndefined()) break;
- CcTest::heap()->CollectAllGarbage();
- }
-
- // Force optimization while incremental marking is active and while
- // the function is enqueued as a candidate.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun("%OptimizeFunctionOnNextCall(foo); foo();");
- }
-
- // Simulate one final GC to make sure the candidate queue is sane.
- CcTest::heap()->CollectAllGarbage();
- CHECK(function->shared()->is_compiled() || !function->IsOptimized());
- CHECK(function->is_compiled() || !function->IsOptimized());
-}
-
-
-TEST(TestCodeFlushingIncrementalScavenge) {
- // If we do not flush code this test is invalid.
- if (!FLAG_flush_code) return;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_optimize_for_size = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
- const char* source = "var foo = function() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo();"
- "var bar = function() {"
- " var x = 23;"
- "};"
- "bar();";
- Handle<String> foo_name = factory->InternalizeUtf8String("foo");
- Handle<String> bar_name = factory->InternalizeUtf8String("bar");
-
- // Perfrom one initial GC to enable code flushing.
- CcTest::heap()->CollectAllGarbage();
-
- // This compile will add the code to the compilation cache.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun(source);
- }
-
- // Check functions are compiled.
- Handle<Object> func_value =
- Object::GetProperty(isolate->global_object(), foo_name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
- CHECK(function->shared()->is_compiled());
- Handle<Object> func_value2 =
- Object::GetProperty(isolate->global_object(), bar_name).ToHandleChecked();
- CHECK(func_value2->IsJSFunction());
- Handle<JSFunction> function2 = Handle<JSFunction>::cast(func_value2);
- CHECK(function2->shared()->is_compiled());
-
- // Clear references to functions so that one of them can die.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun("foo = 0; bar = 0;");
- }
-
- // Bump the code age so that flushing is triggered while the function
- // object is still located in new-space.
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- function->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- function2->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- // Simulate incremental marking so that the functions are enqueued as
- // code flushing candidates. Then kill one of the functions. Finally
- // perform a scavenge while incremental marking is still running.
- SimulateIncrementalMarking(CcTest::heap());
- *function2.location() = NULL;
- CcTest::heap()->CollectGarbage(NEW_SPACE, "test scavenge while marking");
-
- // Simulate one final GC to make sure the candidate queue is sane.
- CcTest::heap()->CollectAllGarbage();
- CHECK(!function->shared()->is_compiled() || function->IsOptimized());
- CHECK(!function->is_compiled() || function->IsOptimized());
-}
-
-
-TEST(TestCodeFlushingIncrementalAbort) {
- // If we do not flush code this test is invalid.
- if (!FLAG_flush_code) return;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_optimize_for_size = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
- v8::HandleScope scope(CcTest::isolate());
- const char* source = "function foo() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo()";
- Handle<String> foo_name = factory->InternalizeUtf8String("foo");
-
- // This compile will add the code to the compilation cache.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun(source);
- }
-
- // Check function is compiled.
- Handle<Object> func_value =
- Object::GetProperty(isolate->global_object(), foo_name).ToHandleChecked();
- CHECK(func_value->IsJSFunction());
- Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
- CHECK(function->shared()->is_compiled());
-
- // The code will survive at least two GCs.
- heap->CollectAllGarbage();
- heap->CollectAllGarbage();
- CHECK(function->shared()->is_compiled());
-
- // Bump the code age so that flushing is triggered.
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- function->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- // Simulate incremental marking so that the function is enqueued as
- // code flushing candidate.
- SimulateIncrementalMarking(heap);
-
- // Enable the debugger and add a breakpoint while incremental marking
- // is running so that incremental marking aborts and code flushing is
- // disabled.
- int position = 0;
- Handle<Object> breakpoint_object(Smi::FromInt(0), isolate);
- EnableDebugger(CcTest::isolate());
- isolate->debug()->SetBreakPoint(function, breakpoint_object, &position);
- isolate->debug()->ClearAllBreakPoints();
- DisableDebugger(CcTest::isolate());
-
- // Force optimization now that code flushing is disabled.
- { v8::HandleScope scope(CcTest::isolate());
- CompileRun("%OptimizeFunctionOnNextCall(foo); foo();");
- }
-
- // Simulate one final GC to make sure the candidate queue is sane.
- heap->CollectAllGarbage();
- CHECK(function->shared()->is_compiled() || !function->IsOptimized());
- CHECK(function->is_compiled() || !function->IsOptimized());
-}
-
-
-TEST(CompilationCacheCachingBehavior) {
- // If we do not flush code, or have the compilation cache turned off, this
- // test is invalid.
- if (!FLAG_flush_code || !FLAG_compilation_cache) {
- return;
- }
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
- CompilationCache* compilation_cache = isolate->compilation_cache();
- LanguageMode language_mode =
- construct_language_mode(FLAG_use_strict, FLAG_use_strong);
-
- v8::HandleScope scope(CcTest::isolate());
- const char* raw_source =
- "function foo() {"
- " var x = 42;"
- " var y = 42;"
- " var z = x + y;"
- "};"
- "foo()";
- Handle<String> source = factory->InternalizeUtf8String(raw_source);
- Handle<Context> native_context = isolate->native_context();
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(raw_source);
- }
-
- // On first compilation, only a hash is inserted in the code cache. We can't
- // find that value.
- MaybeHandle<SharedFunctionInfo> info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(info.is_null());
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(raw_source);
- }
-
- // On second compilation, the hash is replaced by a real cache entry mapping
- // the source to the shared function info containing the code.
- info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(!info.is_null());
-
- heap->CollectAllGarbage();
-
- // On second compilation, the hash is replaced by a real cache entry mapping
- // the source to the shared function info containing the code.
- info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(!info.is_null());
-
- while (!info.ToHandleChecked()->code()->IsOld()) {
- info.ToHandleChecked()->code()->MakeOlder(NO_MARKING_PARITY);
- }
-
- heap->CollectAllGarbage();
- // Ensure code aging cleared the entry from the cache.
- info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(info.is_null());
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(raw_source);
- }
-
- // On first compilation, only a hash is inserted in the code cache. We can't
- // find that value.
- info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(info.is_null());
-
- for (int i = 0; i < CompilationCacheTable::kHashGenerations; i++) {
- compilation_cache->MarkCompactPrologue();
- }
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(raw_source);
- }
-
- // If we aged the cache before caching the script, ensure that we didn't cache
- // on next compilation.
- info = compilation_cache->LookupScript(
- source, Handle<Object>(), 0, 0,
- v8::ScriptOriginOptions(false, true, false), native_context,
- language_mode);
- CHECK(info.is_null());
-}
-
-
-static void OptimizeEmptyFunction(const char* name) {
- HandleScope scope(CcTest::i_isolate());
- EmbeddedVector<char, 256> source;
- SNPrintF(source,
- "function %s() { return 0; }"
- "%s(); %s();"
- "%%OptimizeFunctionOnNextCall(%s);"
- "%s();",
- name, name, name, name, name);
- CompileRun(source.start());
-}
-
-
-// Count the number of native contexts in the weak list of native contexts.
-int CountNativeContexts() {
- int count = 0;
- Object* object = CcTest::heap()->native_contexts_list();
- while (!object->IsUndefined()) {
- count++;
- object = Context::cast(object)->get(Context::NEXT_CONTEXT_LINK);
- }
- return count;
-}
-
-
-// Count the number of user functions in the weak list of optimized
-// functions attached to a native context.
-static int CountOptimizedUserFunctions(v8::Local<v8::Context> context) {
- int count = 0;
- Handle<Context> icontext = v8::Utils::OpenHandle(*context);
- Object* object = icontext->get(Context::OPTIMIZED_FUNCTIONS_LIST);
- while (object->IsJSFunction() &&
- !JSFunction::cast(object)->shared()->IsBuiltin()) {
- count++;
- object = JSFunction::cast(object)->next_function_link();
- }
- return count;
-}
-
-
-TEST(TestInternalWeakLists) {
- FLAG_always_opt = false;
- FLAG_allow_natives_syntax = true;
- v8::V8::Initialize();
-
- // Some flags turn Scavenge collections into Mark-sweep collections
- // and hence are incompatible with this test case.
- if (FLAG_gc_global || FLAG_stress_compaction) return;
- FLAG_retain_maps_for_n_gc = 0;
-
- static const int kNumTestContexts = 10;
-
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
- v8::Local<v8::Context> ctx[kNumTestContexts];
- if (!isolate->use_crankshaft()) return;
-
- CHECK_EQ(0, CountNativeContexts());
-
- // Create a number of global contests which gets linked together.
- for (int i = 0; i < kNumTestContexts; i++) {
- ctx[i] = v8::Context::New(CcTest::isolate());
-
- // Collect garbage that might have been created by one of the
- // installed extensions.
- isolate->compilation_cache()->Clear();
- heap->CollectAllGarbage();
-
- CHECK_EQ(i + 1, CountNativeContexts());
-
- ctx[i]->Enter();
-
- // Create a handle scope so no function objects get stuck in the outer
- // handle scope.
- HandleScope scope(isolate);
- CHECK_EQ(0, CountOptimizedUserFunctions(ctx[i]));
- OptimizeEmptyFunction("f1");
- CHECK_EQ(1, CountOptimizedUserFunctions(ctx[i]));
- OptimizeEmptyFunction("f2");
- CHECK_EQ(2, CountOptimizedUserFunctions(ctx[i]));
- OptimizeEmptyFunction("f3");
- CHECK_EQ(3, CountOptimizedUserFunctions(ctx[i]));
- OptimizeEmptyFunction("f4");
- CHECK_EQ(4, CountOptimizedUserFunctions(ctx[i]));
- OptimizeEmptyFunction("f5");
- CHECK_EQ(5, CountOptimizedUserFunctions(ctx[i]));
-
- // Remove function f1, and
- CompileRun("f1=null");
-
- // Scavenge treats these references as strong.
- for (int j = 0; j < 10; j++) {
- CcTest::heap()->CollectGarbage(NEW_SPACE);
- CHECK_EQ(5, CountOptimizedUserFunctions(ctx[i]));
- }
-
- // Mark compact handles the weak references.
- isolate->compilation_cache()->Clear();
- heap->CollectAllGarbage();
- CHECK_EQ(4, CountOptimizedUserFunctions(ctx[i]));
-
- // Get rid of f3 and f5 in the same way.
- CompileRun("f3=null");
- for (int j = 0; j < 10; j++) {
- CcTest::heap()->CollectGarbage(NEW_SPACE);
- CHECK_EQ(4, CountOptimizedUserFunctions(ctx[i]));
- }
- CcTest::heap()->CollectAllGarbage();
- CHECK_EQ(3, CountOptimizedUserFunctions(ctx[i]));
- CompileRun("f5=null");
- for (int j = 0; j < 10; j++) {
- CcTest::heap()->CollectGarbage(NEW_SPACE);
- CHECK_EQ(3, CountOptimizedUserFunctions(ctx[i]));
- }
- CcTest::heap()->CollectAllGarbage();
- CHECK_EQ(2, CountOptimizedUserFunctions(ctx[i]));
-
- ctx[i]->Exit();
- }
-
- // Force compilation cache cleanup.
- CcTest::heap()->NotifyContextDisposed(true);
- CcTest::heap()->CollectAllGarbage();
-
- // Dispose the native contexts one by one.
- for (int i = 0; i < kNumTestContexts; i++) {
- // TODO(dcarney): is there a better way to do this?
- i::Object** unsafe = reinterpret_cast<i::Object**>(*ctx[i]);
- *unsafe = CcTest::heap()->undefined_value();
- ctx[i].Clear();
-
- // Scavenge treats these references as strong.
- for (int j = 0; j < 10; j++) {
- CcTest::heap()->CollectGarbage(i::NEW_SPACE);
- CHECK_EQ(kNumTestContexts - i, CountNativeContexts());
- }
-
- // Mark compact handles the weak references.
- CcTest::heap()->CollectAllGarbage();
- CHECK_EQ(kNumTestContexts - i - 1, CountNativeContexts());
- }
-
- CHECK_EQ(0, CountNativeContexts());
-}
-
-
-// Count the number of native contexts in the weak list of native contexts
-// causing a GC after the specified number of elements.
-static int CountNativeContextsWithGC(Isolate* isolate, int n) {
- Heap* heap = isolate->heap();
- int count = 0;
- Handle<Object> object(heap->native_contexts_list(), isolate);
- while (!object->IsUndefined()) {
- count++;
- if (count == n) heap->CollectAllGarbage();
- object =
- Handle<Object>(Context::cast(*object)->get(Context::NEXT_CONTEXT_LINK),
- isolate);
- }
- return count;
-}
-
-
-// Count the number of user functions in the weak list of optimized
-// functions attached to a native context causing a GC after the
-// specified number of elements.
-static int CountOptimizedUserFunctionsWithGC(v8::Local<v8::Context> context,
- int n) {
- int count = 0;
- Handle<Context> icontext = v8::Utils::OpenHandle(*context);
- Isolate* isolate = icontext->GetIsolate();
- Handle<Object> object(icontext->get(Context::OPTIMIZED_FUNCTIONS_LIST),
- isolate);
- while (object->IsJSFunction() &&
- !Handle<JSFunction>::cast(object)->shared()->IsBuiltin()) {
- count++;
- if (count == n) isolate->heap()->CollectAllGarbage();
- object = Handle<Object>(
- Object::cast(JSFunction::cast(*object)->next_function_link()),
- isolate);
- }
- return count;
-}
-
-
-TEST(TestInternalWeakListsTraverseWithGC) {
- FLAG_always_opt = false;
- FLAG_allow_natives_syntax = true;
- v8::V8::Initialize();
-
- static const int kNumTestContexts = 10;
-
- Isolate* isolate = CcTest::i_isolate();
- HandleScope scope(isolate);
- v8::Local<v8::Context> ctx[kNumTestContexts];
- if (!isolate->use_crankshaft()) return;
-
- CHECK_EQ(0, CountNativeContexts());
-
- // Create an number of contexts and check the length of the weak list both
- // with and without GCs while iterating the list.
- for (int i = 0; i < kNumTestContexts; i++) {
- ctx[i] = v8::Context::New(CcTest::isolate());
- CHECK_EQ(i + 1, CountNativeContexts());
- CHECK_EQ(i + 1, CountNativeContextsWithGC(isolate, i / 2 + 1));
- }
-
- ctx[0]->Enter();
-
- // Compile a number of functions the length of the weak list of optimized
- // functions both with and without GCs while iterating the list.
- CHECK_EQ(0, CountOptimizedUserFunctions(ctx[0]));
- OptimizeEmptyFunction("f1");
- CHECK_EQ(1, CountOptimizedUserFunctions(ctx[0]));
- CHECK_EQ(1, CountOptimizedUserFunctionsWithGC(ctx[0], 1));
- OptimizeEmptyFunction("f2");
- CHECK_EQ(2, CountOptimizedUserFunctions(ctx[0]));
- CHECK_EQ(2, CountOptimizedUserFunctionsWithGC(ctx[0], 1));
- OptimizeEmptyFunction("f3");
- CHECK_EQ(3, CountOptimizedUserFunctions(ctx[0]));
- CHECK_EQ(3, CountOptimizedUserFunctionsWithGC(ctx[0], 1));
- OptimizeEmptyFunction("f4");
- CHECK_EQ(4, CountOptimizedUserFunctions(ctx[0]));
- CHECK_EQ(4, CountOptimizedUserFunctionsWithGC(ctx[0], 2));
- OptimizeEmptyFunction("f5");
- CHECK_EQ(5, CountOptimizedUserFunctions(ctx[0]));
- CHECK_EQ(5, CountOptimizedUserFunctionsWithGC(ctx[0], 4));
-
- ctx[0]->Exit();
-}
-
-
-TEST(TestSizeOfRegExpCode) {
- if (!FLAG_regexp_optimization) return;
-
- v8::V8::Initialize();
-
- Isolate* isolate = CcTest::i_isolate();
- HandleScope scope(isolate);
-
- LocalContext context;
-
- // Adjust source below and this check to match
- // RegExpImple::kRegExpTooLargeToOptimize.
- CHECK_EQ(i::RegExpImpl::kRegExpTooLargeToOptimize, 20 * KB);
-
- // Compile a regexp that is much larger if we are using regexp optimizations.
- CompileRun(
- "var reg_exp_source = '(?:a|bc|def|ghij|klmno|pqrstu)';"
- "var half_size_reg_exp;"
- "while (reg_exp_source.length < 20 * 1024) {"
- " half_size_reg_exp = reg_exp_source;"
- " reg_exp_source = reg_exp_source + reg_exp_source;"
- "}"
- // Flatten string.
- "reg_exp_source.match(/f/);");
-
- // Get initial heap size after several full GCs, which will stabilize
- // the heap size and return with sweeping finished completely.
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- MarkCompactCollector* collector = CcTest::heap()->mark_compact_collector();
- if (collector->sweeping_in_progress()) {
- collector->EnsureSweepingCompleted();
- }
- int initial_size = static_cast<int>(CcTest::heap()->SizeOfObjects());
-
- CompileRun("'foo'.match(reg_exp_source);");
- CcTest::heap()->CollectAllGarbage();
- int size_with_regexp = static_cast<int>(CcTest::heap()->SizeOfObjects());
-
- CompileRun("'foo'.match(half_size_reg_exp);");
- CcTest::heap()->CollectAllGarbage();
- int size_with_optimized_regexp =
- static_cast<int>(CcTest::heap()->SizeOfObjects());
-
- int size_of_regexp_code = size_with_regexp - initial_size;
-
- // On some platforms the debug-code flag causes huge amounts of regexp code
- // to be emitted, breaking this test.
- if (!FLAG_debug_code) {
- CHECK_LE(size_of_regexp_code, 1 * MB);
- }
-
- // Small regexp is half the size, but compiles to more than twice the code
- // due to the optimization steps.
- CHECK_GE(size_with_optimized_regexp,
- size_with_regexp + size_of_regexp_code * 2);
-}
-
-
-HEAP_TEST(TestSizeOfObjects) {
- v8::V8::Initialize();
-
- // Get initial heap size after several full GCs, which will stabilize
- // the heap size and return with sweeping finished completely.
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- CcTest::heap()->CollectAllGarbage();
- MarkCompactCollector* collector = CcTest::heap()->mark_compact_collector();
- if (collector->sweeping_in_progress()) {
- collector->EnsureSweepingCompleted();
- }
- int initial_size = static_cast<int>(CcTest::heap()->SizeOfObjects());
-
- {
- // Allocate objects on several different old-space pages so that
- // concurrent sweeper threads will be busy sweeping the old space on
- // subsequent GC runs.
- AlwaysAllocateScope always_allocate(CcTest::i_isolate());
- int filler_size = static_cast<int>(FixedArray::SizeFor(8192));
- for (int i = 1; i <= 100; i++) {
- CcTest::heap()->AllocateFixedArray(8192, TENURED).ToObjectChecked();
- CHECK_EQ(initial_size + i * filler_size,
- static_cast<int>(CcTest::heap()->SizeOfObjects()));
- }
- }
-
- // The heap size should go back to initial size after a full GC, even
- // though sweeping didn't finish yet.
- CcTest::heap()->CollectAllGarbage();
-
- // Normally sweeping would not be complete here, but no guarantees.
-
- CHECK_EQ(initial_size, static_cast<int>(CcTest::heap()->SizeOfObjects()));
-
- // Waiting for sweeper threads should not change heap size.
- if (collector->sweeping_in_progress()) {
- collector->EnsureSweepingCompleted();
- }
- CHECK_EQ(initial_size, static_cast<int>(CcTest::heap()->SizeOfObjects()));
-}
-
-
-TEST(TestAlignmentCalculations) {
- // Maximum fill amounts are consistent.
- int maximum_double_misalignment = kDoubleSize - kPointerSize;
- int maximum_simd128_misalignment = kSimd128Size - kPointerSize;
- int max_word_fill = Heap::GetMaximumFillToAlign(kWordAligned);
- CHECK_EQ(0, max_word_fill);
- int max_double_fill = Heap::GetMaximumFillToAlign(kDoubleAligned);
- CHECK_EQ(maximum_double_misalignment, max_double_fill);
- int max_double_unaligned_fill = Heap::GetMaximumFillToAlign(kDoubleUnaligned);
- CHECK_EQ(maximum_double_misalignment, max_double_unaligned_fill);
- int max_simd128_unaligned_fill =
- Heap::GetMaximumFillToAlign(kSimd128Unaligned);
- CHECK_EQ(maximum_simd128_misalignment, max_simd128_unaligned_fill);
-
- Address base = static_cast<Address>(NULL);
- int fill = 0;
-
- // Word alignment never requires fill.
- fill = Heap::GetFillToAlign(base, kWordAligned);
- CHECK_EQ(0, fill);
- fill = Heap::GetFillToAlign(base + kPointerSize, kWordAligned);
- CHECK_EQ(0, fill);
-
- // No fill is required when address is double aligned.
- fill = Heap::GetFillToAlign(base, kDoubleAligned);
- CHECK_EQ(0, fill);
- // Fill is required if address is not double aligned.
- fill = Heap::GetFillToAlign(base + kPointerSize, kDoubleAligned);
- CHECK_EQ(maximum_double_misalignment, fill);
- // kDoubleUnaligned has the opposite fill amounts.
- fill = Heap::GetFillToAlign(base, kDoubleUnaligned);
- CHECK_EQ(maximum_double_misalignment, fill);
- fill = Heap::GetFillToAlign(base + kPointerSize, kDoubleUnaligned);
- CHECK_EQ(0, fill);
-
- // 128 bit SIMD types have 2 or 4 possible alignments, depending on platform.
- fill = Heap::GetFillToAlign(base, kSimd128Unaligned);
- CHECK_EQ((3 * kPointerSize) & kSimd128AlignmentMask, fill);
- fill = Heap::GetFillToAlign(base + kPointerSize, kSimd128Unaligned);
- CHECK_EQ((2 * kPointerSize) & kSimd128AlignmentMask, fill);
- fill = Heap::GetFillToAlign(base + 2 * kPointerSize, kSimd128Unaligned);
- CHECK_EQ(kPointerSize, fill);
- fill = Heap::GetFillToAlign(base + 3 * kPointerSize, kSimd128Unaligned);
- CHECK_EQ(0, fill);
-}
-
-
-static HeapObject* NewSpaceAllocateAligned(int size,
- AllocationAlignment alignment) {
- Heap* heap = CcTest::heap();
- AllocationResult allocation =
- heap->new_space()->AllocateRawAligned(size, alignment);
- HeapObject* obj = NULL;
- allocation.To(&obj);
- heap->CreateFillerObjectAt(obj->address(), size);
- return obj;
-}
-
-
-// Get new space allocation into the desired alignment.
-static Address AlignNewSpace(AllocationAlignment alignment, int offset) {
- Address* top_addr = CcTest::heap()->new_space()->allocation_top_address();
- int fill = Heap::GetFillToAlign(*top_addr, alignment);
- if (fill) {
- NewSpaceAllocateAligned(fill + offset, kWordAligned);
- }
- return *top_addr;
-}
-
-
-TEST(TestAlignedAllocation) {
- // Double misalignment is 4 on 32-bit platforms, 0 on 64-bit ones.
- const intptr_t double_misalignment = kDoubleSize - kPointerSize;
- Address* top_addr = CcTest::heap()->new_space()->allocation_top_address();
- Address start;
- HeapObject* obj;
- HeapObject* filler;
- if (double_misalignment) {
- // Allocate a pointer sized object that must be double aligned at an
- // aligned address.
- start = AlignNewSpace(kDoubleAligned, 0);
- obj = NewSpaceAllocateAligned(kPointerSize, kDoubleAligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment));
- // There is no filler.
- CHECK_EQ(kPointerSize, *top_addr - start);
-
- // Allocate a second pointer sized object that must be double aligned at an
- // unaligned address.
- start = AlignNewSpace(kDoubleAligned, kPointerSize);
- obj = NewSpaceAllocateAligned(kPointerSize, kDoubleAligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment));
- // There is a filler object before the object.
- filler = HeapObject::FromAddress(start);
- CHECK(obj != filler && filler->IsFiller() &&
- filler->Size() == kPointerSize);
- CHECK_EQ(kPointerSize + double_misalignment, *top_addr - start);
-
- // Similarly for kDoubleUnaligned.
- start = AlignNewSpace(kDoubleUnaligned, 0);
- obj = NewSpaceAllocateAligned(kPointerSize, kDoubleUnaligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment, kPointerSize));
- CHECK_EQ(kPointerSize, *top_addr - start);
- start = AlignNewSpace(kDoubleUnaligned, kPointerSize);
- obj = NewSpaceAllocateAligned(kPointerSize, kDoubleUnaligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment, kPointerSize));
- // There is a filler object before the object.
- filler = HeapObject::FromAddress(start);
- CHECK(obj != filler && filler->IsFiller() &&
- filler->Size() == kPointerSize);
- CHECK_EQ(kPointerSize + double_misalignment, *top_addr - start);
- }
-
- // Now test SIMD alignment. There are 2 or 4 possible alignments, depending
- // on platform.
- start = AlignNewSpace(kSimd128Unaligned, 0);
- obj = NewSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is no filler.
- CHECK_EQ(kPointerSize, *top_addr - start);
- start = AlignNewSpace(kSimd128Unaligned, kPointerSize);
- obj = NewSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is a filler object before the object.
- filler = HeapObject::FromAddress(start);
- CHECK(obj != filler && filler->IsFiller() &&
- filler->Size() == kSimd128Size - kPointerSize);
- CHECK_EQ(kPointerSize + kSimd128Size - kPointerSize, *top_addr - start);
-
- if (double_misalignment) {
- // Test the 2 other alignments possible on 32 bit platforms.
- start = AlignNewSpace(kSimd128Unaligned, 2 * kPointerSize);
- obj = NewSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is a filler object before the object.
- filler = HeapObject::FromAddress(start);
- CHECK(obj != filler && filler->IsFiller() &&
- filler->Size() == 2 * kPointerSize);
- CHECK_EQ(kPointerSize + 2 * kPointerSize, *top_addr - start);
- start = AlignNewSpace(kSimd128Unaligned, 3 * kPointerSize);
- obj = NewSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is a filler object before the object.
- filler = HeapObject::FromAddress(start);
- CHECK(obj != filler && filler->IsFiller() &&
- filler->Size() == kPointerSize);
- CHECK_EQ(kPointerSize + kPointerSize, *top_addr - start);
- }
-}
-
-
-static HeapObject* OldSpaceAllocateAligned(int size,
- AllocationAlignment alignment) {
- Heap* heap = CcTest::heap();
- AllocationResult allocation =
- heap->old_space()->AllocateRawAligned(size, alignment);
- HeapObject* obj = NULL;
- allocation.To(&obj);
- heap->CreateFillerObjectAt(obj->address(), size);
- return obj;
-}
-
-
-// Get old space allocation into the desired alignment.
-static Address AlignOldSpace(AllocationAlignment alignment, int offset) {
- Address* top_addr = CcTest::heap()->old_space()->allocation_top_address();
- int fill = Heap::GetFillToAlign(*top_addr, alignment);
- int allocation = fill + offset;
- if (allocation) {
- OldSpaceAllocateAligned(allocation, kWordAligned);
- }
- Address top = *top_addr;
- // Now force the remaining allocation onto the free list.
- CcTest::heap()->old_space()->EmptyAllocationInfo();
- return top;
-}
-
-
-// Test the case where allocation must be done from the free list, so filler
-// may precede or follow the object.
-TEST(TestAlignedOverAllocation) {
- // Double misalignment is 4 on 32-bit platforms, 0 on 64-bit ones.
- const intptr_t double_misalignment = kDoubleSize - kPointerSize;
- Address start;
- HeapObject* obj;
- HeapObject* filler1;
- HeapObject* filler2;
- if (double_misalignment) {
- start = AlignOldSpace(kDoubleAligned, 0);
- obj = OldSpaceAllocateAligned(kPointerSize, kDoubleAligned);
- // The object is aligned, and a filler object is created after.
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment));
- filler1 = HeapObject::FromAddress(start + kPointerSize);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kPointerSize);
- // Try the opposite alignment case.
- start = AlignOldSpace(kDoubleAligned, kPointerSize);
- obj = OldSpaceAllocateAligned(kPointerSize, kDoubleAligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment));
- filler1 = HeapObject::FromAddress(start);
- CHECK(obj != filler1);
- CHECK(filler1->IsFiller());
- CHECK(filler1->Size() == kPointerSize);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kPointerSize);
-
- // Similarly for kDoubleUnaligned.
- start = AlignOldSpace(kDoubleUnaligned, 0);
- obj = OldSpaceAllocateAligned(kPointerSize, kDoubleUnaligned);
- // The object is aligned, and a filler object is created after.
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment, kPointerSize));
- filler1 = HeapObject::FromAddress(start + kPointerSize);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kPointerSize);
- // Try the opposite alignment case.
- start = AlignOldSpace(kDoubleUnaligned, kPointerSize);
- obj = OldSpaceAllocateAligned(kPointerSize, kDoubleUnaligned);
- CHECK(IsAddressAligned(obj->address(), kDoubleAlignment, kPointerSize));
- filler1 = HeapObject::FromAddress(start);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kPointerSize);
- }
-
- // Now test SIMD alignment. There are 2 or 4 possible alignments, depending
- // on platform.
- start = AlignOldSpace(kSimd128Unaligned, 0);
- obj = OldSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is a filler object after the object.
- filler1 = HeapObject::FromAddress(start + kPointerSize);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kSimd128Size - kPointerSize);
- start = AlignOldSpace(kSimd128Unaligned, kPointerSize);
- obj = OldSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There is a filler object before the object.
- filler1 = HeapObject::FromAddress(start);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kSimd128Size - kPointerSize);
-
- if (double_misalignment) {
- // Test the 2 other alignments possible on 32 bit platforms.
- start = AlignOldSpace(kSimd128Unaligned, 2 * kPointerSize);
- obj = OldSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There are filler objects before and after the object.
- filler1 = HeapObject::FromAddress(start);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == 2 * kPointerSize);
- filler2 = HeapObject::FromAddress(start + 3 * kPointerSize);
- CHECK(obj != filler2 && filler2->IsFiller() &&
- filler2->Size() == kPointerSize);
- start = AlignOldSpace(kSimd128Unaligned, 3 * kPointerSize);
- obj = OldSpaceAllocateAligned(kPointerSize, kSimd128Unaligned);
- CHECK(IsAddressAligned(obj->address(), kSimd128Alignment, kPointerSize));
- // There are filler objects before and after the object.
- filler1 = HeapObject::FromAddress(start);
- CHECK(obj != filler1 && filler1->IsFiller() &&
- filler1->Size() == kPointerSize);
- filler2 = HeapObject::FromAddress(start + 2 * kPointerSize);
- CHECK(obj != filler2 && filler2->IsFiller() &&
- filler2->Size() == 2 * kPointerSize);
- }
-}
-
-
-TEST(TestSizeOfObjectsVsHeapIteratorPrecision) {
- CcTest::InitializeVM();
- HeapIterator iterator(CcTest::heap());
- intptr_t size_of_objects_1 = CcTest::heap()->SizeOfObjects();
- intptr_t size_of_objects_2 = 0;
- for (HeapObject* obj = iterator.next();
- obj != NULL;
- obj = iterator.next()) {
- if (!obj->IsFreeSpace()) {
- size_of_objects_2 += obj->Size();
- }
- }
- // Delta must be within 5% of the larger result.
- // TODO(gc): Tighten this up by distinguishing between byte
- // arrays that are real and those that merely mark free space
- // on the heap.
- if (size_of_objects_1 > size_of_objects_2) {
- intptr_t delta = size_of_objects_1 - size_of_objects_2;
- PrintF("Heap::SizeOfObjects: %" V8_PTR_PREFIX "d, "
- "Iterator: %" V8_PTR_PREFIX "d, "
- "delta: %" V8_PTR_PREFIX "d\n",
- size_of_objects_1, size_of_objects_2, delta);
- CHECK_GT(size_of_objects_1 / 20, delta);
- } else {
- intptr_t delta = size_of_objects_2 - size_of_objects_1;
- PrintF("Heap::SizeOfObjects: %" V8_PTR_PREFIX "d, "
- "Iterator: %" V8_PTR_PREFIX "d, "
- "delta: %" V8_PTR_PREFIX "d\n",
- size_of_objects_1, size_of_objects_2, delta);
- CHECK_GT(size_of_objects_2 / 20, delta);
- }
-}
-
-
-static void FillUpNewSpace(NewSpace* new_space) {
- // Fill up new space to the point that it is completely full. Make sure
- // that the scavenger does not undo the filling.
- Heap* heap = new_space->heap();
- Isolate* isolate = heap->isolate();
- Factory* factory = isolate->factory();
- HandleScope scope(isolate);
- AlwaysAllocateScope always_allocate(isolate);
- intptr_t available = new_space->Capacity() - new_space->Size();
- intptr_t number_of_fillers = (available / FixedArray::SizeFor(32)) - 1;
- for (intptr_t i = 0; i < number_of_fillers; i++) {
- CHECK(heap->InNewSpace(*factory->NewFixedArray(32, NOT_TENURED)));
- }
-}
-
-
-TEST(GrowAndShrinkNewSpace) {
- CcTest::InitializeVM();
- Heap* heap = CcTest::heap();
- NewSpace* new_space = heap->new_space();
-
- if (heap->ReservedSemiSpaceSize() == heap->InitialSemiSpaceSize() ||
- heap->MaxSemiSpaceSize() == heap->InitialSemiSpaceSize()) {
- // The max size cannot exceed the reserved size, since semispaces must be
- // always within the reserved space. We can't test new space growing and
- // shrinking if the reserved size is the same as the minimum (initial) size.
- return;
- }
-
- // Explicitly growing should double the space capacity.
- intptr_t old_capacity, new_capacity;
- old_capacity = new_space->TotalCapacity();
- new_space->Grow();
- new_capacity = new_space->TotalCapacity();
- CHECK(2 * old_capacity == new_capacity);
-
- old_capacity = new_space->TotalCapacity();
- FillUpNewSpace(new_space);
- new_capacity = new_space->TotalCapacity();
- CHECK(old_capacity == new_capacity);
-
- // Explicitly shrinking should not affect space capacity.
- old_capacity = new_space->TotalCapacity();
- new_space->Shrink();
- new_capacity = new_space->TotalCapacity();
- CHECK(old_capacity == new_capacity);
-
- // Let the scavenger empty the new space.
- heap->CollectGarbage(NEW_SPACE);
- CHECK_LE(new_space->Size(), old_capacity);
-
- // Explicitly shrinking should halve the space capacity.
- old_capacity = new_space->TotalCapacity();
- new_space->Shrink();
- new_capacity = new_space->TotalCapacity();
- CHECK(old_capacity == 2 * new_capacity);
-
- // Consecutive shrinking should not affect space capacity.
- old_capacity = new_space->TotalCapacity();
- new_space->Shrink();
- new_space->Shrink();
- new_space->Shrink();
- new_capacity = new_space->TotalCapacity();
- CHECK(old_capacity == new_capacity);
-}
-
-
-TEST(CollectingAllAvailableGarbageShrinksNewSpace) {
- CcTest::InitializeVM();
- Heap* heap = CcTest::heap();
- if (heap->ReservedSemiSpaceSize() == heap->InitialSemiSpaceSize() ||
- heap->MaxSemiSpaceSize() == heap->InitialSemiSpaceSize()) {
- // The max size cannot exceed the reserved size, since semispaces must be
- // always within the reserved space. We can't test new space growing and
- // shrinking if the reserved size is the same as the minimum (initial) size.
- return;
- }
-
- v8::HandleScope scope(CcTest::isolate());
- NewSpace* new_space = heap->new_space();
- intptr_t old_capacity, new_capacity;
- old_capacity = new_space->TotalCapacity();
- new_space->Grow();
- new_capacity = new_space->TotalCapacity();
- CHECK(2 * old_capacity == new_capacity);
- FillUpNewSpace(new_space);
- heap->CollectAllAvailableGarbage();
- new_capacity = new_space->TotalCapacity();
- CHECK(old_capacity == new_capacity);
-}
-
-
-static int NumberOfGlobalObjects() {
- int count = 0;
- HeapIterator iterator(CcTest::heap());
- for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
- if (obj->IsJSGlobalObject()) count++;
- }
- return count;
-}
-
-
-// Test that we don't embed maps from foreign contexts into
-// optimized code.
-TEST(LeakNativeContextViaMap) {
- i::FLAG_allow_natives_syntax = true;
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope outer_scope(isolate);
- v8::Persistent<v8::Context> ctx1p;
- v8::Persistent<v8::Context> ctx2p;
- {
- v8::HandleScope scope(isolate);
- ctx1p.Reset(isolate, v8::Context::New(isolate));
- ctx2p.Reset(isolate, v8::Context::New(isolate));
- v8::Local<v8::Context>::New(isolate, ctx1p)->Enter();
- }
-
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(2, NumberOfGlobalObjects());
-
- {
- v8::HandleScope inner_scope(isolate);
- CompileRun("var v = {x: 42}");
- v8::Local<v8::Context> ctx1 = v8::Local<v8::Context>::New(isolate, ctx1p);
- v8::Local<v8::Context> ctx2 = v8::Local<v8::Context>::New(isolate, ctx2p);
- v8::Local<v8::Value> v =
- ctx1->Global()->Get(ctx1, v8_str("v")).ToLocalChecked();
- ctx2->Enter();
- CHECK(ctx2->Global()->Set(ctx2, v8_str("o"), v).FromJust());
- v8::Local<v8::Value> res = CompileRun(
- "function f() { return o.x; }"
- "for (var i = 0; i < 10; ++i) f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- CHECK_EQ(42, res->Int32Value(ctx2).FromJust());
- CHECK(ctx2->Global()
- ->Set(ctx2, v8_str("o"), v8::Int32::New(isolate, 0))
- .FromJust());
- ctx2->Exit();
- v8::Local<v8::Context>::New(isolate, ctx1)->Exit();
- ctx1p.Reset();
- isolate->ContextDisposedNotification();
- }
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(1, NumberOfGlobalObjects());
- ctx2p.Reset();
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(0, NumberOfGlobalObjects());
-}
-
-
-// Test that we don't embed functions from foreign contexts into
-// optimized code.
-TEST(LeakNativeContextViaFunction) {
- i::FLAG_allow_natives_syntax = true;
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope outer_scope(isolate);
- v8::Persistent<v8::Context> ctx1p;
- v8::Persistent<v8::Context> ctx2p;
- {
- v8::HandleScope scope(isolate);
- ctx1p.Reset(isolate, v8::Context::New(isolate));
- ctx2p.Reset(isolate, v8::Context::New(isolate));
- v8::Local<v8::Context>::New(isolate, ctx1p)->Enter();
- }
-
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(2, NumberOfGlobalObjects());
-
- {
- v8::HandleScope inner_scope(isolate);
- CompileRun("var v = function() { return 42; }");
- v8::Local<v8::Context> ctx1 = v8::Local<v8::Context>::New(isolate, ctx1p);
- v8::Local<v8::Context> ctx2 = v8::Local<v8::Context>::New(isolate, ctx2p);
- v8::Local<v8::Value> v =
- ctx1->Global()->Get(ctx1, v8_str("v")).ToLocalChecked();
- ctx2->Enter();
- CHECK(ctx2->Global()->Set(ctx2, v8_str("o"), v).FromJust());
- v8::Local<v8::Value> res = CompileRun(
- "function f(x) { return x(); }"
- "for (var i = 0; i < 10; ++i) f(o);"
- "%OptimizeFunctionOnNextCall(f);"
- "f(o);");
- CHECK_EQ(42, res->Int32Value(ctx2).FromJust());
- CHECK(ctx2->Global()
- ->Set(ctx2, v8_str("o"), v8::Int32::New(isolate, 0))
- .FromJust());
- ctx2->Exit();
- ctx1->Exit();
- ctx1p.Reset();
- isolate->ContextDisposedNotification();
- }
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(1, NumberOfGlobalObjects());
- ctx2p.Reset();
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(0, NumberOfGlobalObjects());
-}
-
-
-TEST(LeakNativeContextViaMapKeyed) {
- i::FLAG_allow_natives_syntax = true;
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope outer_scope(isolate);
- v8::Persistent<v8::Context> ctx1p;
- v8::Persistent<v8::Context> ctx2p;
- {
- v8::HandleScope scope(isolate);
- ctx1p.Reset(isolate, v8::Context::New(isolate));
- ctx2p.Reset(isolate, v8::Context::New(isolate));
- v8::Local<v8::Context>::New(isolate, ctx1p)->Enter();
- }
-
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(2, NumberOfGlobalObjects());
-
- {
- v8::HandleScope inner_scope(isolate);
- CompileRun("var v = [42, 43]");
- v8::Local<v8::Context> ctx1 = v8::Local<v8::Context>::New(isolate, ctx1p);
- v8::Local<v8::Context> ctx2 = v8::Local<v8::Context>::New(isolate, ctx2p);
- v8::Local<v8::Value> v =
- ctx1->Global()->Get(ctx1, v8_str("v")).ToLocalChecked();
- ctx2->Enter();
- CHECK(ctx2->Global()->Set(ctx2, v8_str("o"), v).FromJust());
- v8::Local<v8::Value> res = CompileRun(
- "function f() { return o[0]; }"
- "for (var i = 0; i < 10; ++i) f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- CHECK_EQ(42, res->Int32Value(ctx2).FromJust());
- CHECK(ctx2->Global()
- ->Set(ctx2, v8_str("o"), v8::Int32::New(isolate, 0))
- .FromJust());
- ctx2->Exit();
- ctx1->Exit();
- ctx1p.Reset();
- isolate->ContextDisposedNotification();
- }
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(1, NumberOfGlobalObjects());
- ctx2p.Reset();
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(0, NumberOfGlobalObjects());
-}
-
-
-TEST(LeakNativeContextViaMapProto) {
- i::FLAG_allow_natives_syntax = true;
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope outer_scope(isolate);
- v8::Persistent<v8::Context> ctx1p;
- v8::Persistent<v8::Context> ctx2p;
- {
- v8::HandleScope scope(isolate);
- ctx1p.Reset(isolate, v8::Context::New(isolate));
- ctx2p.Reset(isolate, v8::Context::New(isolate));
- v8::Local<v8::Context>::New(isolate, ctx1p)->Enter();
- }
-
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(2, NumberOfGlobalObjects());
-
- {
- v8::HandleScope inner_scope(isolate);
- CompileRun("var v = { y: 42}");
- v8::Local<v8::Context> ctx1 = v8::Local<v8::Context>::New(isolate, ctx1p);
- v8::Local<v8::Context> ctx2 = v8::Local<v8::Context>::New(isolate, ctx2p);
- v8::Local<v8::Value> v =
- ctx1->Global()->Get(ctx1, v8_str("v")).ToLocalChecked();
- ctx2->Enter();
- CHECK(ctx2->Global()->Set(ctx2, v8_str("o"), v).FromJust());
- v8::Local<v8::Value> res = CompileRun(
- "function f() {"
- " var p = {x: 42};"
- " p.__proto__ = o;"
- " return p.x;"
- "}"
- "for (var i = 0; i < 10; ++i) f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- CHECK_EQ(42, res->Int32Value(ctx2).FromJust());
- CHECK(ctx2->Global()
- ->Set(ctx2, v8_str("o"), v8::Int32::New(isolate, 0))
- .FromJust());
- ctx2->Exit();
- ctx1->Exit();
- ctx1p.Reset();
- isolate->ContextDisposedNotification();
- }
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(1, NumberOfGlobalObjects());
- ctx2p.Reset();
- CcTest::heap()->CollectAllAvailableGarbage();
- CHECK_EQ(0, NumberOfGlobalObjects());
-}
-
-
-TEST(InstanceOfStubWriteBarrier) {
- i::FLAG_allow_natives_syntax = true;
-#ifdef VERIFY_HEAP
- i::FLAG_verify_heap = true;
-#endif
-
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft()) return;
- if (i::FLAG_force_marking_deque_overflows) return;
- v8::HandleScope outer_scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(
- "function foo () { }"
- "function mkbar () { return new (new Function(\"\")) (); }"
- "function f (x) { return (x instanceof foo); }"
- "function g () { f(mkbar()); }"
- "f(new foo()); f(new foo());"
- "%OptimizeFunctionOnNextCall(f);"
- "f(new foo()); g();");
- }
-
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- marking->Stop();
- CcTest::heap()->StartIncrementalMarking();
-
- i::Handle<JSFunction> f = i::Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CHECK(f->IsOptimized());
-
- while (!Marking::IsBlack(Marking::MarkBitFrom(f->code())) &&
- !marking->IsStopped()) {
- // Discard any pending GC requests otherwise we will get GC when we enter
- // code below.
- marking->Step(MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
- }
-
- CHECK(marking->IsMarking());
-
- {
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Object> global = CcTest::global();
- v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(
- global->Get(ctx, v8_str("g")).ToLocalChecked());
- g->Call(ctx, global, 0, nullptr).ToLocalChecked();
- }
-
- CcTest::heap()->incremental_marking()->set_should_hurry(true);
- CcTest::heap()->CollectGarbage(OLD_SPACE);
-}
-
-
-TEST(PrototypeTransitionClearing) {
- if (FLAG_never_compact) return;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- CompileRun("var base = {};");
- i::Handle<JSReceiver> baseObject =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(
- CcTest::global()->Get(ctx, v8_str("base")).ToLocalChecked()));
-
- int initialTransitions =
- TransitionArray::NumberOfPrototypeTransitionsForTest(baseObject->map());
-
- CompileRun(
- "var live = [];"
- "for (var i = 0; i < 10; i++) {"
- " var object = {};"
- " var prototype = {};"
- " object.__proto__ = prototype;"
- " if (i >= 3) live.push(object, prototype);"
- "}");
-
- // Verify that only dead prototype transitions are cleared.
- CHECK_EQ(
- initialTransitions + 10,
- TransitionArray::NumberOfPrototypeTransitionsForTest(baseObject->map()));
- CcTest::heap()->CollectAllGarbage();
- const int transitions = 10 - 3;
- CHECK_EQ(
- initialTransitions + transitions,
- TransitionArray::NumberOfPrototypeTransitionsForTest(baseObject->map()));
-
- // Verify that prototype transitions array was compacted.
- FixedArray* trans =
- TransitionArray::GetPrototypeTransitions(baseObject->map());
- for (int i = initialTransitions; i < initialTransitions + transitions; i++) {
- int j = TransitionArray::kProtoTransitionHeaderSize + i;
- CHECK(trans->get(j)->IsWeakCell());
- CHECK(WeakCell::cast(trans->get(j))->value()->IsMap());
- }
-
- // Make sure next prototype is placed on an old-space evacuation candidate.
- Handle<JSObject> prototype;
- PagedSpace* space = CcTest::heap()->old_space();
- {
- AlwaysAllocateScope always_allocate(isolate);
- SimulateFullSpace(space);
- prototype = factory->NewJSArray(32 * KB, FAST_HOLEY_ELEMENTS,
- Strength::WEAK, TENURED);
- }
-
- // Add a prototype on an evacuation candidate and verify that transition
- // clearing correctly records slots in prototype transition array.
- i::FLAG_always_compact = true;
- Handle<Map> map(baseObject->map());
- CHECK(!space->LastPage()->Contains(
- TransitionArray::GetPrototypeTransitions(*map)->address()));
- CHECK(space->LastPage()->Contains(prototype->address()));
-}
-
-
-TEST(ResetSharedFunctionInfoCountersDuringIncrementalMarking) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
-#ifdef VERIFY_HEAP
- i::FLAG_verify_heap = true;
-#endif
-
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft()) return;
- v8::HandleScope outer_scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(
- "function f () {"
- " var s = 0;"
- " for (var i = 0; i < 100; i++) s += i;"
- " return s;"
- "}"
- "f(); f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- }
- i::Handle<JSFunction> f = i::Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
- CHECK(f->IsOptimized());
-
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- marking->Stop();
- CcTest::heap()->StartIncrementalMarking();
- // The following calls will increment CcTest::heap()->global_ic_age().
- CcTest::isolate()->ContextDisposedNotification();
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
- CHECK_EQ(CcTest::heap()->global_ic_age(), f->shared()->ic_age());
- CHECK_EQ(0, f->shared()->opt_count());
- CHECK_EQ(0, f->shared()->code()->profiler_ticks());
-}
-
-
-TEST(ResetSharedFunctionInfoCountersDuringMarkSweep) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
-#ifdef VERIFY_HEAP
- i::FLAG_verify_heap = true;
-#endif
-
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft()) return;
- v8::HandleScope outer_scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(
- "function f () {"
- " var s = 0;"
- " for (var i = 0; i < 100; i++) s += i;"
- " return s;"
- "}"
- "f(); f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- }
- i::Handle<JSFunction> f = i::Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CHECK(f->IsOptimized());
-
- CcTest::heap()->incremental_marking()->Stop();
-
- // The following two calls will increment CcTest::heap()->global_ic_age().
- CcTest::isolate()->ContextDisposedNotification();
- CcTest::heap()->CollectAllGarbage();
-
- CHECK_EQ(CcTest::heap()->global_ic_age(), f->shared()->ic_age());
- CHECK_EQ(0, f->shared()->opt_count());
- CHECK_EQ(0, f->shared()->code()->profiler_ticks());
-}
-
-
-HEAP_TEST(GCFlags) {
- CcTest::InitializeVM();
- Heap* heap = CcTest::heap();
-
- heap->set_current_gc_flags(Heap::kNoGCFlags);
- CHECK_EQ(Heap::kNoGCFlags, heap->current_gc_flags_);
-
- // Set the flags to check whether we appropriately resets them after the GC.
- heap->set_current_gc_flags(Heap::kAbortIncrementalMarkingMask);
- heap->CollectAllGarbage(Heap::kReduceMemoryFootprintMask);
- CHECK_EQ(Heap::kNoGCFlags, heap->current_gc_flags_);
-
- MarkCompactCollector* collector = heap->mark_compact_collector();
- if (collector->sweeping_in_progress()) {
- collector->EnsureSweepingCompleted();
- }
-
- IncrementalMarking* marking = heap->incremental_marking();
- marking->Stop();
- heap->StartIncrementalMarking(Heap::kReduceMemoryFootprintMask);
- CHECK_NE(0, heap->current_gc_flags_ & Heap::kReduceMemoryFootprintMask);
-
- heap->CollectGarbage(NEW_SPACE);
- // NewSpace scavenges should not overwrite the flags.
- CHECK_NE(0, heap->current_gc_flags_ & Heap::kReduceMemoryFootprintMask);
-
- heap->CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
- CHECK_EQ(Heap::kNoGCFlags, heap->current_gc_flags_);
-}
-
-
-TEST(IdleNotificationFinishMarking) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- SimulateFullSpace(CcTest::heap()->old_space());
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- marking->Stop();
- CcTest::heap()->StartIncrementalMarking();
-
- CHECK_EQ(CcTest::heap()->gc_count(), 0);
-
- // TODO(hpayer): We cannot write proper unit test right now for heap.
- // The ideal test would call kMaxIdleMarkingDelayCounter to test the
- // marking delay counter.
-
- // Perform a huge incremental marking step but don't complete marking.
- intptr_t bytes_processed = 0;
- do {
- bytes_processed =
- marking->Step(1 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD,
- IncrementalMarking::FORCE_MARKING,
- IncrementalMarking::DO_NOT_FORCE_COMPLETION);
- CHECK(!marking->IsIdleMarkingDelayCounterLimitReached());
- } while (bytes_processed);
-
- // The next invocations of incremental marking are not going to complete
- // marking
- // since the completion threshold is not reached
- for (size_t i = 0; i < IncrementalMarking::kMaxIdleMarkingDelayCounter - 2;
- i++) {
- marking->Step(1 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD,
- IncrementalMarking::FORCE_MARKING,
- IncrementalMarking::DO_NOT_FORCE_COMPLETION);
- CHECK(!marking->IsIdleMarkingDelayCounterLimitReached());
- }
-
- marking->SetWeakClosureWasOverApproximatedForTesting(true);
-
- // The next idle notification has to finish incremental marking.
- const double kLongIdleTime = 1000.0;
- CcTest::isolate()->IdleNotificationDeadline(
- (v8::base::TimeTicks::HighResolutionNow().ToInternalValue() /
- static_cast<double>(v8::base::Time::kMicrosecondsPerSecond)) +
- kLongIdleTime);
- CHECK_EQ(CcTest::heap()->gc_count(), 1);
-}
-
-
-// Test that HAllocateObject will always return an object in new-space.
-TEST(OptimizedAllocationAlwaysInNewSpace) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- SimulateFullSpace(CcTest::heap()->new_space());
- AlwaysAllocateScope always_allocate(CcTest::i_isolate());
- v8::Local<v8::Value> res = CompileRun(
- "function c(x) {"
- " this.x = x;"
- " for (var i = 0; i < 32; i++) {"
- " this['x' + i] = x;"
- " }"
- "}"
- "function f(x) { return new c(x); };"
- "f(1); f(2); f(3);"
- "%OptimizeFunctionOnNextCall(f);"
- "f(4);");
-
- CHECK_EQ(4, res.As<v8::Object>()
- ->GetRealNamedProperty(ctx, v8_str("x"))
- .ToLocalChecked()
- ->Int32Value(ctx)
- .FromJust());
-
- i::Handle<JSReceiver> o =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res));
-
- CHECK(CcTest::heap()->InNewSpace(*o));
-}
-
-
-TEST(OptimizedPretenuringAllocationFolding) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array();"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [[{}], [1.1]];"
- " }"
- " return elements[number_elements-1]"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- v8::Local<v8::Value> int_array =
- v8::Object::Cast(*res)->Get(ctx, v8_str("0")).ToLocalChecked();
- i::Handle<JSObject> int_array_handle = i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(int_array)));
- v8::Local<v8::Value> double_array =
- v8::Object::Cast(*res)->Get(ctx, v8_str("1")).ToLocalChecked();
- i::Handle<JSObject> double_array_handle = i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(double_array)));
-
- i::Handle<JSReceiver> o =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res));
- CHECK(CcTest::heap()->InOldSpace(*o));
- CHECK(CcTest::heap()->InOldSpace(*int_array_handle));
- CHECK(CcTest::heap()->InOldSpace(int_array_handle->elements()));
- CHECK(CcTest::heap()->InOldSpace(*double_array_handle));
- CHECK(CcTest::heap()->InOldSpace(double_array_handle->elements()));
-}
-
-
-TEST(OptimizedPretenuringObjectArrayLiterals) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
-
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [{}, {}, {}];"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
-
- CHECK(CcTest::heap()->InOldSpace(o->elements()));
- CHECK(CcTest::heap()->InOldSpace(*o));
-}
-
-
-TEST(OptimizedPretenuringMixedInObjectProperties) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
-
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = {a: {c: 2.2, d: {}}, b: 1.1};"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
-
- CHECK(CcTest::heap()->InOldSpace(*o));
- FieldIndex idx1 = FieldIndex::ForPropertyIndex(o->map(), 0);
- FieldIndex idx2 = FieldIndex::ForPropertyIndex(o->map(), 1);
- CHECK(CcTest::heap()->InOldSpace(o->RawFastPropertyAt(idx1)));
- if (!o->IsUnboxedDoubleField(idx2)) {
- CHECK(CcTest::heap()->InOldSpace(o->RawFastPropertyAt(idx2)));
- } else {
- CHECK_EQ(1.1, o->RawFastDoublePropertyAt(idx2));
- }
-
- JSObject* inner_object =
- reinterpret_cast<JSObject*>(o->RawFastPropertyAt(idx1));
- CHECK(CcTest::heap()->InOldSpace(inner_object));
- if (!inner_object->IsUnboxedDoubleField(idx1)) {
- CHECK(CcTest::heap()->InOldSpace(inner_object->RawFastPropertyAt(idx1)));
- } else {
- CHECK_EQ(2.2, inner_object->RawFastDoublePropertyAt(idx1));
- }
- CHECK(CcTest::heap()->InOldSpace(inner_object->RawFastPropertyAt(idx2)));
-}
-
-
-TEST(OptimizedPretenuringDoubleArrayProperties) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
-
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = {a: 1.1, b: 2.2};"
- " }"
- " return elements[i - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
-
- CHECK(CcTest::heap()->InOldSpace(*o));
- CHECK(CcTest::heap()->InOldSpace(o->properties()));
-}
-
-
-TEST(OptimizedPretenuringdoubleArrayLiterals) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
-
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [1.1, 2.2, 3.3];"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
-
- CHECK(CcTest::heap()->InOldSpace(o->elements()));
- CHECK(CcTest::heap()->InOldSpace(*o));
-}
-
-
-TEST(OptimizedPretenuringNestedMixedArrayLiterals) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = 100;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [[{}, {}, {}], [1.1, 2.2, 3.3]];"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();");
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- v8::Local<v8::Value> int_array =
- v8::Object::Cast(*res)->Get(ctx, v8_str("0")).ToLocalChecked();
- i::Handle<JSObject> int_array_handle = i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(int_array)));
- v8::Local<v8::Value> double_array =
- v8::Object::Cast(*res)->Get(ctx, v8_str("1")).ToLocalChecked();
- i::Handle<JSObject> double_array_handle = i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(double_array)));
-
- Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
- CHECK(CcTest::heap()->InOldSpace(*o));
- CHECK(CcTest::heap()->InOldSpace(*int_array_handle));
- CHECK(CcTest::heap()->InOldSpace(int_array_handle->elements()));
- CHECK(CcTest::heap()->InOldSpace(*double_array_handle));
- CHECK(CcTest::heap()->InOldSpace(double_array_handle->elements()));
-}
-
-
-TEST(OptimizedPretenuringNestedObjectLiterals) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [[{}, {}, {}],[{}, {}, {}]];"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- v8::Local<v8::Value> int_array_1 =
- v8::Object::Cast(*res)->Get(ctx, v8_str("0")).ToLocalChecked();
- Handle<JSObject> int_array_handle_1 = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(int_array_1)));
- v8::Local<v8::Value> int_array_2 =
- v8::Object::Cast(*res)->Get(ctx, v8_str("1")).ToLocalChecked();
- Handle<JSObject> int_array_handle_2 = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(int_array_2)));
-
- Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
- CHECK(CcTest::heap()->InOldSpace(*o));
- CHECK(CcTest::heap()->InOldSpace(*int_array_handle_1));
- CHECK(CcTest::heap()->InOldSpace(int_array_handle_1->elements()));
- CHECK(CcTest::heap()->InOldSpace(*int_array_handle_2));
- CHECK(CcTest::heap()->InOldSpace(int_array_handle_2->elements()));
-}
-
-
-TEST(OptimizedPretenuringNestedDoubleLiterals) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Grow new space unitl maximum capacity reached.
- while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
- CcTest::heap()->new_space()->Grow();
- }
-
- i::ScopedVector<char> source(1024);
- i::SNPrintF(
- source,
- "var number_elements = %d;"
- "var elements = new Array(number_elements);"
- "function f() {"
- " for (var i = 0; i < number_elements; i++) {"
- " elements[i] = [[1.1, 1.2, 1.3],[2.1, 2.2, 2.3]];"
- " }"
- " return elements[number_elements - 1];"
- "};"
- "f(); gc();"
- "f(); f();"
- "%%OptimizeFunctionOnNextCall(f);"
- "f();",
- AllocationSite::kPretenureMinimumCreated);
-
- v8::Local<v8::Value> res = CompileRun(source.start());
-
- v8::Local<v8::Value> double_array_1 =
- v8::Object::Cast(*res)->Get(ctx, v8_str("0")).ToLocalChecked();
- i::Handle<JSObject> double_array_handle_1 = i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(double_array_1)));
- v8::Local<v8::Value> double_array_2 =
- v8::Object::Cast(*res)->Get(ctx, v8_str("1")).ToLocalChecked();
- i::Handle<JSObject> double_array_handle_2 = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(double_array_2)));
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
- CHECK(CcTest::heap()->InOldSpace(*o));
- CHECK(CcTest::heap()->InOldSpace(*double_array_handle_1));
- CHECK(CcTest::heap()->InOldSpace(double_array_handle_1->elements()));
- CHECK(CcTest::heap()->InOldSpace(*double_array_handle_2));
- CHECK(CcTest::heap()->InOldSpace(double_array_handle_2->elements()));
-}
-
-
-// Test regular array literals allocation.
-TEST(OptimizedAllocationArrayLiterals) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
- if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- v8::Local<v8::Value> res = CompileRun(
- "function f() {"
- " var numbers = new Array(1, 2, 3);"
- " numbers[0] = 3.14;"
- " return numbers;"
- "};"
- "f(); f(); f();"
- "%OptimizeFunctionOnNextCall(f);"
- "f();");
- CHECK_EQ(static_cast<int>(3.14), v8::Object::Cast(*res)
- ->Get(ctx, v8_str("0"))
- .ToLocalChecked()
- ->Int32Value(ctx)
- .FromJust());
-
- i::Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
-
- CHECK(CcTest::heap()->InNewSpace(o->elements()));
-}
-
-
-static int CountMapTransitions(Map* map) {
- return TransitionArray::NumberOfTransitions(map->raw_transitions());
-}
-
-
-// Test that map transitions are cleared and maps are collected with
-// incremental marking as well.
-TEST(Regress1465) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_trace_incremental_marking = true;
- i::FLAG_retain_maps_for_n_gc = 0;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- static const int transitions_count = 256;
-
- CompileRun("function F() {}");
- {
- AlwaysAllocateScope always_allocate(CcTest::i_isolate());
- for (int i = 0; i < transitions_count; i++) {
- EmbeddedVector<char, 64> buffer;
- SNPrintF(buffer, "var o = new F; o.prop%d = %d;", i, i);
- CompileRun(buffer.start());
- }
- CompileRun("var root = new F;");
- }
-
- i::Handle<JSReceiver> root =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(
- CcTest::global()->Get(ctx, v8_str("root")).ToLocalChecked()));
-
- // Count number of live transitions before marking.
- int transitions_before = CountMapTransitions(root->map());
- CompileRun("%DebugPrint(root);");
- CHECK_EQ(transitions_count, transitions_before);
-
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- // Count number of live transitions after marking. Note that one transition
- // is left, because 'o' still holds an instance of one transition target.
- int transitions_after = CountMapTransitions(root->map());
- CompileRun("%DebugPrint(root);");
- CHECK_EQ(1, transitions_after);
-}
-
-
-#ifdef DEBUG
-static void AddTransitions(int transitions_count) {
- AlwaysAllocateScope always_allocate(CcTest::i_isolate());
- for (int i = 0; i < transitions_count; i++) {
- EmbeddedVector<char, 64> buffer;
- SNPrintF(buffer, "var o = new F; o.prop%d = %d;", i, i);
- CompileRun(buffer.start());
- }
-}
-
-
-static i::Handle<JSObject> GetByName(const char* name) {
- return i::Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(
- CcTest::global()
- ->Get(CcTest::isolate()->GetCurrentContext(), v8_str(name))
- .ToLocalChecked())));
-}
-
-
-static void AddPropertyTo(
- int gc_count, Handle<JSObject> object, const char* property_name) {
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Handle<String> prop_name = factory->InternalizeUtf8String(property_name);
- Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
- i::FLAG_gc_interval = gc_count;
- i::FLAG_gc_global = true;
- i::FLAG_retain_maps_for_n_gc = 0;
- CcTest::heap()->set_allocation_timeout(gc_count);
- JSReceiver::SetProperty(object, prop_name, twenty_three, SLOPPY).Check();
-}
-
-
-TEST(TransitionArrayShrinksDuringAllocToZero) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- static const int transitions_count = 10;
- CompileRun("function F() { }");
- AddTransitions(transitions_count);
- CompileRun("var root = new F;");
- Handle<JSObject> root = GetByName("root");
-
- // Count number of live transitions before marking.
- int transitions_before = CountMapTransitions(root->map());
- CHECK_EQ(transitions_count, transitions_before);
-
- // Get rid of o
- CompileRun("o = new F;"
- "root = new F");
- root = GetByName("root");
- AddPropertyTo(2, root, "funny");
- CcTest::heap()->CollectGarbage(NEW_SPACE);
-
- // Count number of live transitions after marking. Note that one transition
- // is left, because 'o' still holds an instance of one transition target.
- int transitions_after = CountMapTransitions(
- Map::cast(root->map()->GetBackPointer()));
- CHECK_EQ(1, transitions_after);
-}
-
-
-TEST(TransitionArrayShrinksDuringAllocToOne) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- static const int transitions_count = 10;
- CompileRun("function F() {}");
- AddTransitions(transitions_count);
- CompileRun("var root = new F;");
- Handle<JSObject> root = GetByName("root");
-
- // Count number of live transitions before marking.
- int transitions_before = CountMapTransitions(root->map());
- CHECK_EQ(transitions_count, transitions_before);
-
- root = GetByName("root");
- AddPropertyTo(2, root, "funny");
- CcTest::heap()->CollectGarbage(NEW_SPACE);
-
- // Count number of live transitions after marking. Note that one transition
- // is left, because 'o' still holds an instance of one transition target.
- int transitions_after = CountMapTransitions(
- Map::cast(root->map()->GetBackPointer()));
- CHECK_EQ(2, transitions_after);
-}
-
-
-TEST(TransitionArrayShrinksDuringAllocToOnePropertyFound) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- static const int transitions_count = 10;
- CompileRun("function F() {}");
- AddTransitions(transitions_count);
- CompileRun("var root = new F;");
- Handle<JSObject> root = GetByName("root");
-
- // Count number of live transitions before marking.
- int transitions_before = CountMapTransitions(root->map());
- CHECK_EQ(transitions_count, transitions_before);
-
- root = GetByName("root");
- AddPropertyTo(0, root, "prop9");
- CcTest::i_isolate()->heap()->CollectGarbage(OLD_SPACE);
-
- // Count number of live transitions after marking. Note that one transition
- // is left, because 'o' still holds an instance of one transition target.
- int transitions_after = CountMapTransitions(
- Map::cast(root->map()->GetBackPointer()));
- CHECK_EQ(1, transitions_after);
-}
-
-
-TEST(TransitionArraySimpleToFull) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- static const int transitions_count = 1;
- CompileRun("function F() {}");
- AddTransitions(transitions_count);
- CompileRun("var root = new F;");
- Handle<JSObject> root = GetByName("root");
-
- // Count number of live transitions before marking.
- int transitions_before = CountMapTransitions(root->map());
- CHECK_EQ(transitions_count, transitions_before);
-
- CompileRun("o = new F;"
- "root = new F");
- root = GetByName("root");
- CHECK(TransitionArray::IsSimpleTransition(root->map()->raw_transitions()));
- AddPropertyTo(2, root, "happy");
-
- // Count number of live transitions after marking. Note that one transition
- // is left, because 'o' still holds an instance of one transition target.
- int transitions_after = CountMapTransitions(
- Map::cast(root->map()->GetBackPointer()));
- CHECK_EQ(1, transitions_after);
-}
-#endif // DEBUG
-
-
-TEST(Regress2143a) {
- i::FLAG_incremental_marking = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- // Prepare a map transition from the root object together with a yet
- // untransitioned root object.
- CompileRun("var root = new Object;"
- "root.foo = 0;"
- "root = new Object;");
-
- SimulateIncrementalMarking(CcTest::heap());
-
- // Compile a StoreIC that performs the prepared map transition. This
- // will restart incremental marking and should make sure the root is
- // marked grey again.
- CompileRun("function f(o) {"
- " o.foo = 0;"
- "}"
- "f(new Object);"
- "f(root);");
-
- // This bug only triggers with aggressive IC clearing.
- CcTest::heap()->AgeInlineCaches();
-
- // Explicitly request GC to perform final marking step and sweeping.
- CcTest::heap()->CollectAllGarbage();
-
- Handle<JSReceiver> root = v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(
- CcTest::global()
- ->Get(CcTest::isolate()->GetCurrentContext(), v8_str("root"))
- .ToLocalChecked()));
-
- // The root object should be in a sane state.
- CHECK(root->IsJSObject());
- CHECK(root->map()->IsMap());
-}
-
-
-TEST(Regress2143b) {
- i::FLAG_incremental_marking = true;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- // Prepare a map transition from the root object together with a yet
- // untransitioned root object.
- CompileRun("var root = new Object;"
- "root.foo = 0;"
- "root = new Object;");
-
- SimulateIncrementalMarking(CcTest::heap());
-
- // Compile an optimized LStoreNamedField that performs the prepared
- // map transition. This will restart incremental marking and should
- // make sure the root is marked grey again.
- CompileRun("function f(o) {"
- " o.foo = 0;"
- "}"
- "f(new Object);"
- "f(new Object);"
- "%OptimizeFunctionOnNextCall(f);"
- "f(root);"
- "%DeoptimizeFunction(f);");
-
- // This bug only triggers with aggressive IC clearing.
- CcTest::heap()->AgeInlineCaches();
-
- // Explicitly request GC to perform final marking step and sweeping.
- CcTest::heap()->CollectAllGarbage();
-
- Handle<JSReceiver> root = v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(
- CcTest::global()
- ->Get(CcTest::isolate()->GetCurrentContext(), v8_str("root"))
- .ToLocalChecked()));
-
- // The root object should be in a sane state.
- CHECK(root->IsJSObject());
- CHECK(root->map()->IsMap());
-}
-
-
-TEST(ReleaseOverReservedPages) {
- if (FLAG_never_compact) return;
- i::FLAG_trace_gc = true;
- // The optimizer can allocate stuff, messing up the test.
- i::FLAG_crankshaft = false;
- i::FLAG_always_opt = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
- v8::HandleScope scope(CcTest::isolate());
- static const int number_of_test_pages = 20;
-
- // Prepare many pages with low live-bytes count.
- PagedSpace* old_space = heap->old_space();
- CHECK_EQ(1, old_space->CountTotalPages());
- for (int i = 0; i < number_of_test_pages; i++) {
- AlwaysAllocateScope always_allocate(isolate);
- SimulateFullSpace(old_space);
- factory->NewFixedArray(1, TENURED);
- }
- CHECK_EQ(number_of_test_pages + 1, old_space->CountTotalPages());
-
- // Triggering one GC will cause a lot of garbage to be discovered but
- // even spread across all allocated pages.
- heap->CollectAllGarbage(Heap::kFinalizeIncrementalMarkingMask,
- "triggered for preparation");
- CHECK_GE(number_of_test_pages + 1, old_space->CountTotalPages());
-
- // Triggering subsequent GCs should cause at least half of the pages
- // to be released to the OS after at most two cycles.
- heap->CollectAllGarbage(Heap::kFinalizeIncrementalMarkingMask,
- "triggered by test 1");
- CHECK_GE(number_of_test_pages + 1, old_space->CountTotalPages());
- heap->CollectAllGarbage(Heap::kFinalizeIncrementalMarkingMask,
- "triggered by test 2");
- CHECK_GE(number_of_test_pages + 1, old_space->CountTotalPages() * 2);
-
- // Triggering a last-resort GC should cause all pages to be released to the
- // OS so that other processes can seize the memory. If we get a failure here
- // where there are 2 pages left instead of 1, then we should increase the
- // size of the first page a little in SizeOfFirstPage in spaces.cc. The
- // first page should be small in order to reduce memory used when the VM
- // boots, but if the 20 small arrays don't fit on the first page then that's
- // an indication that it is too small.
- heap->CollectAllAvailableGarbage("triggered really hard");
- CHECK_EQ(1, old_space->CountTotalPages());
-}
-
-static int forced_gc_counter = 0;
-
-void MockUseCounterCallback(v8::Isolate* isolate,
- v8::Isolate::UseCounterFeature feature) {
- isolate->GetCurrentContext();
- if (feature == v8::Isolate::kForcedGC) {
- forced_gc_counter++;
- }
-}
-
-
-TEST(CountForcedGC) {
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::HandleScope scope(CcTest::isolate());
-
- isolate->SetUseCounterCallback(MockUseCounterCallback);
-
- forced_gc_counter = 0;
- const char* source = "gc();";
- CompileRun(source);
- CHECK_GT(forced_gc_counter, 0);
-}
-
-
-#ifdef OBJECT_PRINT
-TEST(PrintSharedFunctionInfo) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- const char* source = "f = function() { return 987654321; }\n"
- "g = function() { return 123456789; }\n";
- CompileRun(source);
- i::Handle<JSFunction> g = i::Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("g")).ToLocalChecked())));
-
- OFStream os(stdout);
- g->shared()->Print(os);
- os << std::endl;
-}
-#endif // OBJECT_PRINT
-
-
-TEST(IncrementalMarkingPreservesMonomorphicCallIC) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Value> fun1, fun2;
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- {
- CompileRun("function fun() {};");
- fun1 = CcTest::global()->Get(ctx, v8_str("fun")).ToLocalChecked();
- }
-
- {
- CompileRun("function fun() {};");
- fun2 = CcTest::global()->Get(ctx, v8_str("fun")).ToLocalChecked();
- }
-
- // Prepare function f that contains type feedback for the two closures.
- CHECK(CcTest::global()->Set(ctx, v8_str("fun1"), fun1).FromJust());
- CHECK(CcTest::global()->Set(ctx, v8_str("fun2"), fun2).FromJust());
- CompileRun("function f(a, b) { a(); b(); } f(fun1, fun2);");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- Handle<TypeFeedbackVector> feedback_vector(f->shared()->feedback_vector());
- FeedbackVectorHelper feedback_helper(feedback_vector);
-
- int expected_slots = 2;
- CHECK_EQ(expected_slots, feedback_helper.slot_count());
- int slot1 = 0;
- int slot2 = 1;
- CHECK(feedback_vector->Get(feedback_helper.slot(slot1))->IsWeakCell());
- CHECK(feedback_vector->Get(feedback_helper.slot(slot2))->IsWeakCell());
-
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CHECK(!WeakCell::cast(feedback_vector->Get(feedback_helper.slot(slot1)))
- ->cleared());
- CHECK(!WeakCell::cast(feedback_vector->Get(feedback_helper.slot(slot2)))
- ->cleared());
-}
-
-
-static Code* FindFirstIC(Code* code, Code::Kind kind) {
- int mask = RelocInfo::ModeMask(RelocInfo::CODE_TARGET) |
- RelocInfo::ModeMask(RelocInfo::CODE_TARGET_WITH_ID);
- for (RelocIterator it(code, mask); !it.done(); it.next()) {
- RelocInfo* info = it.rinfo();
- Code* target = Code::GetCodeFromTargetAddress(info->target_address());
- if (target->is_inline_cache_stub() && target->kind() == kind) {
- return target;
- }
- }
- return NULL;
-}
-
-
-static void CheckVectorIC(Handle<JSFunction> f, int slot_index,
- InlineCacheState desired_state) {
- Handle<TypeFeedbackVector> vector =
- Handle<TypeFeedbackVector>(f->shared()->feedback_vector());
- FeedbackVectorHelper helper(vector);
- FeedbackVectorSlot slot = helper.slot(slot_index);
- if (vector->GetKind(slot) == FeedbackVectorSlotKind::LOAD_IC) {
- LoadICNexus nexus(vector, slot);
- CHECK(nexus.StateFromFeedback() == desired_state);
- } else {
- CHECK_EQ(FeedbackVectorSlotKind::KEYED_LOAD_IC, vector->GetKind(slot));
- KeyedLoadICNexus nexus(vector, slot);
- CHECK(nexus.StateFromFeedback() == desired_state);
- }
-}
-
-
-static void CheckVectorICCleared(Handle<JSFunction> f, int slot_index) {
- Handle<TypeFeedbackVector> vector =
- Handle<TypeFeedbackVector>(f->shared()->feedback_vector());
- FeedbackVectorSlot slot(slot_index);
- LoadICNexus nexus(vector, slot);
- CHECK(IC::IsCleared(&nexus));
-}
-
-
-TEST(ICInBuiltInIsClearedAppropriately) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- Handle<JSFunction> apply;
- {
- LocalContext env;
- v8::Local<v8::Value> res = CompileRun("Function.apply");
- i::Handle<JSReceiver> maybe_apply =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res));
- apply = i::Handle<JSFunction>::cast(maybe_apply);
- i::Handle<TypeFeedbackVector> vector(apply->shared()->feedback_vector());
- FeedbackVectorHelper feedback_helper(vector);
- CHECK_EQ(1, feedback_helper.slot_count());
- CheckVectorIC(apply, 0, UNINITIALIZED);
- CompileRun(
- "function b(a1, a2, a3) { return a1 + a2 + a3; }"
- "function fun(bar) { bar.apply({}, [1, 2, 3]); };"
- "fun(b); fun(b)");
- CheckVectorIC(apply, 0, MONOMORPHIC);
- }
-
- // Fire context dispose notification.
- CcTest::isolate()->ContextDisposedNotification();
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- // The IC in apply has been cleared, ready to learn again.
- CheckVectorIC(apply, 0, PREMONOMORPHIC);
-}
-
-
-TEST(IncrementalMarkingPreservesMonomorphicConstructor) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Prepare function f that contains a monomorphic IC for object
- // originating from the same native context.
- CompileRun(
- "function fun() { this.x = 1; };"
- "function f(o) { return new o(); } f(fun); f(fun);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- Handle<TypeFeedbackVector> vector(f->shared()->feedback_vector());
- CHECK(vector->Get(FeedbackVectorSlot(0))->IsWeakCell());
-
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CHECK(vector->Get(FeedbackVectorSlot(0))->IsWeakCell());
-}
-
-
-TEST(IncrementalMarkingClearsMonomorphicConstructor) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Value> fun1;
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 1; };");
- fun1 = env->Global()->Get(env.local(), v8_str("fun")).ToLocalChecked();
- }
-
- // Prepare function f that contains a monomorphic constructor for object
- // originating from a different native context.
- CHECK(CcTest::global()->Set(ctx, v8_str("fun1"), fun1).FromJust());
- CompileRun(
- "function fun() { this.x = 1; };"
- "function f(o) { return new o(); } f(fun1); f(fun1);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
-
- Handle<TypeFeedbackVector> vector(f->shared()->feedback_vector());
- CHECK(vector->Get(FeedbackVectorSlot(0))->IsWeakCell());
-
- // Fire context dispose notification.
- CcTest::isolate()->ContextDisposedNotification();
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CHECK_EQ(*TypeFeedbackVector::UninitializedSentinel(isolate),
- vector->Get(FeedbackVectorSlot(0)));
-}
-
-
-TEST(IncrementalMarkingPreservesMonomorphicIC) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
- // Prepare function f that contains a monomorphic IC for object
- // originating from the same native context.
- CompileRun("function fun() { this.x = 1; }; var obj = new fun();"
- "function f(o) { return o.x; } f(obj); f(obj);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CheckVectorIC(f, 0, MONOMORPHIC);
-
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CheckVectorIC(f, 0, MONOMORPHIC);
-}
-
-
-TEST(IncrementalMarkingClearsMonomorphicIC) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Value> obj1;
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 1; }; var obj = new fun();");
- obj1 = env->Global()->Get(env.local(), v8_str("obj")).ToLocalChecked();
- }
-
- // Prepare function f that contains a monomorphic IC for object
- // originating from a different native context.
- CHECK(CcTest::global()->Set(ctx, v8_str("obj1"), obj1).FromJust());
- CompileRun("function f(o) { return o.x; } f(obj1); f(obj1);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CheckVectorIC(f, 0, MONOMORPHIC);
-
- // Fire context dispose notification.
- CcTest::isolate()->ContextDisposedNotification();
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CheckVectorICCleared(f, 0);
-}
-
-
-TEST(IncrementalMarkingPreservesPolymorphicIC) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Value> obj1, obj2;
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 1; }; var obj = new fun();");
- obj1 = env->Global()->Get(env.local(), v8_str("obj")).ToLocalChecked();
- }
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 2; }; var obj = new fun();");
- obj2 = env->Global()->Get(env.local(), v8_str("obj")).ToLocalChecked();
- }
-
- // Prepare function f that contains a polymorphic IC for objects
- // originating from two different native contexts.
- CHECK(CcTest::global()->Set(ctx, v8_str("obj1"), obj1).FromJust());
- CHECK(CcTest::global()->Set(ctx, v8_str("obj2"), obj2).FromJust());
- CompileRun("function f(o) { return o.x; } f(obj1); f(obj1); f(obj2);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CheckVectorIC(f, 0, POLYMORPHIC);
-
- // Fire context dispose notification.
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CheckVectorIC(f, 0, POLYMORPHIC);
-}
-
-
-TEST(IncrementalMarkingClearsPolymorphicIC) {
- if (i::FLAG_always_opt) return;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::Local<v8::Value> obj1, obj2;
- v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 1; }; var obj = new fun();");
- obj1 = env->Global()->Get(env.local(), v8_str("obj")).ToLocalChecked();
- }
-
- {
- LocalContext env;
- CompileRun("function fun() { this.x = 2; }; var obj = new fun();");
- obj2 = env->Global()->Get(env.local(), v8_str("obj")).ToLocalChecked();
- }
-
- // Prepare function f that contains a polymorphic IC for objects
- // originating from two different native contexts.
- CHECK(CcTest::global()->Set(ctx, v8_str("obj1"), obj1).FromJust());
- CHECK(CcTest::global()->Set(ctx, v8_str("obj2"), obj2).FromJust());
- CompileRun("function f(o) { return o.x; } f(obj1); f(obj1); f(obj2);");
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
-
- CheckVectorIC(f, 0, POLYMORPHIC);
-
- // Fire context dispose notification.
- CcTest::isolate()->ContextDisposedNotification();
- SimulateIncrementalMarking(CcTest::heap());
- CcTest::heap()->CollectAllGarbage();
-
- CheckVectorICCleared(f, 0);
-}
-
-
-class SourceResource : public v8::String::ExternalOneByteStringResource {
- public:
- explicit SourceResource(const char* data)
- : data_(data), length_(strlen(data)) { }
-
- virtual void Dispose() {
- i::DeleteArray(data_);
- data_ = NULL;
- }
-
- const char* data() const { return data_; }
-
- size_t length() const { return length_; }
-
- bool IsDisposed() { return data_ == NULL; }
-
- private:
- const char* data_;
- size_t length_;
-};
-
-
-void ReleaseStackTraceDataTest(v8::Isolate* isolate, const char* source,
- const char* accessor) {
- // Test that the data retained by the Error.stack accessor is released
- // after the first time the accessor is fired. We use external string
- // to check whether the data is being released since the external string
- // resource's callback is fired when the external string is GC'ed.
- i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
- v8::HandleScope scope(isolate);
- SourceResource* resource = new SourceResource(i::StrDup(source));
- {
- v8::HandleScope scope(isolate);
- v8::Local<v8::Context> ctx = isolate->GetCurrentContext();
- v8::Local<v8::String> source_string =
- v8::String::NewExternalOneByte(isolate, resource).ToLocalChecked();
- i_isolate->heap()->CollectAllAvailableGarbage();
- v8::Script::Compile(ctx, source_string)
- .ToLocalChecked()
- ->Run(ctx)
- .ToLocalChecked();
- CHECK(!resource->IsDisposed());
- }
- // i_isolate->heap()->CollectAllAvailableGarbage();
- CHECK(!resource->IsDisposed());
-
- CompileRun(accessor);
- i_isolate->heap()->CollectAllAvailableGarbage();
-
- // External source has been released.
- CHECK(resource->IsDisposed());
- delete resource;
-}
-
-
-UNINITIALIZED_TEST(ReleaseStackTraceData) {
- if (i::FLAG_always_opt) {
- // TODO(ulan): Remove this once the memory leak via code_next_link is fixed.
- // See: https://codereview.chromium.org/181833004/
- return;
- }
- FLAG_use_ic = false; // ICs retain objects.
- FLAG_concurrent_recompilation = false;
- v8::Isolate::CreateParams create_params;
- create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
- v8::Isolate* isolate = v8::Isolate::New(create_params);
- {
- v8::Isolate::Scope isolate_scope(isolate);
- v8::HandleScope handle_scope(isolate);
- v8::Context::New(isolate)->Enter();
- static const char* source1 = "var error = null; "
- /* Normal Error */ "try { "
- " throw new Error(); "
- "} catch (e) { "
- " error = e; "
- "} ";
- static const char* source2 = "var error = null; "
- /* Stack overflow */ "try { "
- " (function f() { f(); })(); "
- "} catch (e) { "
- " error = e; "
- "} ";
- static const char* source3 = "var error = null; "
- /* Normal Error */ "try { "
- /* as prototype */ " throw new Error(); "
- "} catch (e) { "
- " error = {}; "
- " error.__proto__ = e; "
- "} ";
- static const char* source4 = "var error = null; "
- /* Stack overflow */ "try { "
- /* as prototype */ " (function f() { f(); })(); "
- "} catch (e) { "
- " error = {}; "
- " error.__proto__ = e; "
- "} ";
- static const char* getter = "error.stack";
- static const char* setter = "error.stack = 0";
-
- ReleaseStackTraceDataTest(isolate, source1, setter);
- ReleaseStackTraceDataTest(isolate, source2, setter);
- // We do not test source3 and source4 with setter, since the setter is
- // supposed to (untypically) write to the receiver, not the holder. This is
- // to emulate the behavior of a data property.
-
- ReleaseStackTraceDataTest(isolate, source1, getter);
- ReleaseStackTraceDataTest(isolate, source2, getter);
- ReleaseStackTraceDataTest(isolate, source3, getter);
- ReleaseStackTraceDataTest(isolate, source4, getter);
- }
- isolate->Dispose();
-}
-
-
-TEST(Regress159140) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- LocalContext env;
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Perform one initial GC to enable code flushing.
- heap->CollectAllGarbage();
-
- // Prepare several closures that are all eligible for code flushing
- // because all reachable ones are not optimized. Make sure that the
- // optimized code object is directly reachable through a handle so
- // that it is marked black during incremental marking.
- Handle<Code> code;
- {
- HandleScope inner_scope(isolate);
- CompileRun("function h(x) {}"
- "function mkClosure() {"
- " return function(x) { return x + 1; };"
- "}"
- "var f = mkClosure();"
- "var g = mkClosure();"
- "f(1); f(2);"
- "g(1); g(2);"
- "h(1); h(2);"
- "%OptimizeFunctionOnNextCall(f); f(3);"
- "%OptimizeFunctionOnNextCall(h); h(3);");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("f")).ToLocalChecked())));
- CHECK(f->is_compiled());
- CompileRun("f = null;");
-
- Handle<JSFunction> g = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("g")).ToLocalChecked())));
- CHECK(g->is_compiled());
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- g->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- code = inner_scope.CloseAndEscape(Handle<Code>(f->code()));
- }
-
- // Simulate incremental marking so that the functions are enqueued as
- // code flushing candidates. Then optimize one function. Finally
- // finish the GC to complete code flushing.
- SimulateIncrementalMarking(heap);
- CompileRun("%OptimizeFunctionOnNextCall(g); g(3);");
- heap->CollectAllGarbage();
-
- // Unoptimized code is missing and the deoptimizer will go ballistic.
- CompileRun("g('bozo');");
-}
-
-
-TEST(Regress165495) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Perform one initial GC to enable code flushing.
- heap->CollectAllGarbage();
-
- // Prepare an optimized closure that the optimized code map will get
- // populated. Then age the unoptimized code to trigger code flushing
- // but make sure the optimized code is unreachable.
- {
- HandleScope inner_scope(isolate);
- LocalContext env;
- CompileRun("function mkClosure() {"
- " return function(x) { return x + 1; };"
- "}"
- "var f = mkClosure();"
- "f(1); f(2);"
- "%OptimizeFunctionOnNextCall(f); f(3);");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("f")).ToLocalChecked())));
- CHECK(f->is_compiled());
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- f->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- CompileRun("f = null;");
- }
-
- // Simulate incremental marking so that unoptimized code is flushed
- // even though it still is cached in the optimized code map.
- SimulateIncrementalMarking(heap);
- heap->CollectAllGarbage();
-
- // Make a new closure that will get code installed from the code map.
- // Unoptimized code is missing and the deoptimizer will go ballistic.
- CompileRun("var g = mkClosure(); g('bozo');");
-}
-
-
-TEST(Regress169209) {
- i::FLAG_stress_compaction = false;
- i::FLAG_allow_natives_syntax = true;
-
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Perform one initial GC to enable code flushing.
- heap->CollectAllGarbage();
-
- // Prepare a shared function info eligible for code flushing for which
- // the unoptimized code will be replaced during optimization.
- Handle<SharedFunctionInfo> shared1;
- {
- HandleScope inner_scope(isolate);
- LocalContext env;
- CompileRun("function f() { return 'foobar'; }"
- "function g(x) { if (x) f(); }"
- "f();"
- "g(false);"
- "g(false);");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("f")).ToLocalChecked())));
- CHECK(f->is_compiled());
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- f->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- shared1 = inner_scope.CloseAndEscape(handle(f->shared(), isolate));
- }
-
- // Prepare a shared function info eligible for code flushing that will
- // represent the dangling tail of the candidate list.
- Handle<SharedFunctionInfo> shared2;
- {
- HandleScope inner_scope(isolate);
- LocalContext env;
- CompileRun("function flushMe() { return 0; }"
- "flushMe(1);");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
- *v8::Local<v8::Function>::Cast(CcTest::global()
- ->Get(env.local(), v8_str("flushMe"))
- .ToLocalChecked())));
- CHECK(f->is_compiled());
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- f->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- shared2 = inner_scope.CloseAndEscape(handle(f->shared(), isolate));
- }
-
- // Simulate incremental marking and collect code flushing candidates.
- SimulateIncrementalMarking(heap);
- CHECK(shared1->code()->gc_metadata() != NULL);
-
- // Optimize function and make sure the unoptimized code is replaced.
-#ifdef DEBUG
- FLAG_stop_at = "f";
-#endif
- CompileRun("%OptimizeFunctionOnNextCall(g);"
- "g(false);");
-
- // Finish garbage collection cycle.
- heap->CollectAllGarbage();
- CHECK(shared1->code()->gc_metadata() == NULL);
-}
-
-
-TEST(Regress169928) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_crankshaft = false;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- LocalContext env;
- Factory* factory = isolate->factory();
- v8::HandleScope scope(CcTest::isolate());
-
- // Some flags turn Scavenge collections into Mark-sweep collections
- // and hence are incompatible with this test case.
- if (FLAG_gc_global || FLAG_stress_compaction) return;
-
- // Prepare the environment
- CompileRun("function fastliteralcase(literal, value) {"
- " literal[0] = value;"
- " return literal;"
- "}"
- "function get_standard_literal() {"
- " var literal = [1, 2, 3];"
- " return literal;"
- "}"
- "obj = fastliteralcase(get_standard_literal(), 1);"
- "obj = fastliteralcase(get_standard_literal(), 1.5);"
- "obj = fastliteralcase(get_standard_literal(), 2);");
-
- // prepare the heap
- v8::Local<v8::String> mote_code_string =
- v8_str("fastliteralcase(mote, 2.5);");
-
- v8::Local<v8::String> array_name = v8_str("mote");
- CHECK(CcTest::global()
- ->Set(env.local(), array_name, v8::Int32::New(CcTest::isolate(), 0))
- .FromJust());
-
- // First make sure we flip spaces
- CcTest::heap()->CollectGarbage(NEW_SPACE);
-
- // Allocate the object.
- Handle<FixedArray> array_data = factory->NewFixedArray(2, NOT_TENURED);
- array_data->set(0, Smi::FromInt(1));
- array_data->set(1, Smi::FromInt(2));
-
- AllocateAllButNBytes(CcTest::heap()->new_space(),
- JSArray::kSize + AllocationMemento::kSize +
- kPointerSize);
-
- Handle<JSArray> array =
- factory->NewJSArrayWithElements(array_data, FAST_SMI_ELEMENTS);
-
- CHECK_EQ(Smi::FromInt(2), array->length());
- CHECK(array->HasFastSmiOrObjectElements());
-
- // We need filler the size of AllocationMemento object, plus an extra
- // fill pointer value.
- HeapObject* obj = NULL;
- AllocationResult allocation =
- CcTest::heap()->new_space()->AllocateRawUnaligned(
- AllocationMemento::kSize + kPointerSize);
- CHECK(allocation.To(&obj));
- Address addr_obj = obj->address();
- CcTest::heap()->CreateFillerObjectAt(
- addr_obj, AllocationMemento::kSize + kPointerSize);
-
- // Give the array a name, making sure not to allocate strings.
- v8::Local<v8::Object> array_obj = v8::Utils::ToLocal(array);
- CHECK(CcTest::global()->Set(env.local(), array_name, array_obj).FromJust());
-
- // This should crash with a protection violation if we are running a build
- // with the bug.
- AlwaysAllocateScope aa_scope(isolate);
- v8::Script::Compile(env.local(), mote_code_string)
- .ToLocalChecked()
- ->Run(env.local())
- .ToLocalChecked();
-}
-
-
-#ifdef DEBUG
-TEST(Regress513507) {
- i::FLAG_flush_optimized_code_cache = false;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_gc_global = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- LocalContext env;
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Prepare function whose optimized code map we can use.
- Handle<SharedFunctionInfo> shared;
- {
- HandleScope inner_scope(isolate);
- CompileRun("function f() { return 1 }"
- "f(); %OptimizeFunctionOnNextCall(f); f();");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("f")).ToLocalChecked())));
- shared = inner_scope.CloseAndEscape(handle(f->shared(), isolate));
- CompileRun("f = null");
- }
-
- // Prepare optimized code that we can use.
- Handle<Code> code;
- {
- HandleScope inner_scope(isolate);
- CompileRun("function g() { return 2 }"
- "g(); %OptimizeFunctionOnNextCall(g); g();");
-
- Handle<JSFunction> g = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("g")).ToLocalChecked())));
- code = inner_scope.CloseAndEscape(handle(g->code(), isolate));
- if (!code->is_optimized_code()) return;
- }
-
- Handle<TypeFeedbackVector> vector = handle(shared->feedback_vector());
- Handle<LiteralsArray> lit =
- LiteralsArray::New(isolate, vector, shared->num_literals(), TENURED);
- Handle<Context> context(isolate->context());
-
- // Add the new code several times to the optimized code map and also set an
- // allocation timeout so that expanding the code map will trigger a GC.
- heap->set_allocation_timeout(5);
- FLAG_gc_interval = 1000;
- for (int i = 0; i < 10; ++i) {
- BailoutId id = BailoutId(i);
- SharedFunctionInfo::AddToOptimizedCodeMap(shared, context, code, lit, id);
- }
-}
-#endif // DEBUG
-
-
-TEST(Regress514122) {
- i::FLAG_flush_optimized_code_cache = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- LocalContext env;
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Perfrom one initial GC to enable code flushing.
- CcTest::heap()->CollectAllGarbage();
-
- // Prepare function whose optimized code map we can use.
- Handle<SharedFunctionInfo> shared;
- {
- HandleScope inner_scope(isolate);
- CompileRun("function f() { return 1 }"
- "f(); %OptimizeFunctionOnNextCall(f); f();");
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("f")).ToLocalChecked())));
- shared = inner_scope.CloseAndEscape(handle(f->shared(), isolate));
- CompileRun("f = null");
- }
-
- // Prepare optimized code that we can use.
- Handle<Code> code;
- {
- HandleScope inner_scope(isolate);
- CompileRun("function g() { return 2 }"
- "g(); %OptimizeFunctionOnNextCall(g); g();");
-
- Handle<JSFunction> g = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()->Get(env.local(), v8_str("g")).ToLocalChecked())));
- code = inner_scope.CloseAndEscape(handle(g->code(), isolate));
- if (!code->is_optimized_code()) return;
- }
-
- Handle<TypeFeedbackVector> vector = handle(shared->feedback_vector());
- Handle<LiteralsArray> lit =
- LiteralsArray::New(isolate, vector, shared->num_literals(), TENURED);
- Handle<Context> context(isolate->context());
-
- // Add the code several times to the optimized code map.
- for (int i = 0; i < 3; ++i) {
- HandleScope inner_scope(isolate);
- BailoutId id = BailoutId(i);
- SharedFunctionInfo::AddToOptimizedCodeMap(shared, context, code, lit, id);
- }
- shared->optimized_code_map()->Print();
-
- // Add the code with a literals array to be evacuated.
- Page* evac_page;
- {
- HandleScope inner_scope(isolate);
- AlwaysAllocateScope always_allocate(isolate);
- // Make sure literal is placed on an old-space evacuation candidate.
- SimulateFullSpace(heap->old_space());
-
- // Make sure there the number of literals is > 0.
- Handle<LiteralsArray> lit =
- LiteralsArray::New(isolate, vector, 23, TENURED);
-
- evac_page = Page::FromAddress(lit->address());
- BailoutId id = BailoutId(100);
- SharedFunctionInfo::AddToOptimizedCodeMap(shared, context, code, lit, id);
- }
-
- // Heap is ready, force {lit_page} to become an evacuation candidate and
- // simulate incremental marking to enqueue optimized code map.
- FLAG_manual_evacuation_candidates_selection = true;
- evac_page->SetFlag(MemoryChunk::FORCE_EVACUATION_CANDIDATE_FOR_TESTING);
- SimulateIncrementalMarking(heap);
-
- // No matter whether reachable or not, {boomer} is doomed.
- Handle<Object> boomer(shared->optimized_code_map(), isolate);
-
- // Add the code several times to the optimized code map. This will leave old
- // copies of the optimized code map unreachable but still marked.
- for (int i = 3; i < 6; ++i) {
- HandleScope inner_scope(isolate);
- BailoutId id = BailoutId(i);
- SharedFunctionInfo::AddToOptimizedCodeMap(shared, context, code, lit, id);
- }
-
- // Trigger a GC to flush out the bug.
- heap->CollectGarbage(i::OLD_SPACE, "fire in the hole");
- boomer->Print();
-}
-
-
-TEST(Regress513496) {
- i::FLAG_flush_optimized_code_cache = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Perfrom one initial GC to enable code flushing.
- CcTest::heap()->CollectAllGarbage();
-
- // Prepare an optimized closure with containing an inlined function. Then age
- // the inlined unoptimized code to trigger code flushing but make sure the
- // outer optimized code is kept in the optimized code map.
- Handle<SharedFunctionInfo> shared;
- {
- LocalContext context;
- HandleScope inner_scope(isolate);
- CompileRun(
- "function g(x) { return x + 1 }"
- "function mkClosure() {"
- " return function(x) { return g(x); };"
- "}"
- "var f = mkClosure();"
- "f(1); f(2);"
- "%OptimizeFunctionOnNextCall(f); f(3);");
-
- Handle<JSFunction> g = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
- *v8::Local<v8::Function>::Cast(CcTest::global()
- ->Get(context.local(), v8_str("g"))
- .ToLocalChecked())));
- CHECK(g->shared()->is_compiled());
- const int kAgingThreshold = 6;
- for (int i = 0; i < kAgingThreshold; i++) {
- g->shared()->code()->MakeOlder(static_cast<MarkingParity>(i % 2));
- }
-
- Handle<JSFunction> f = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
- *v8::Local<v8::Function>::Cast(CcTest::global()
- ->Get(context.local(), v8_str("f"))
- .ToLocalChecked())));
- CHECK(f->is_compiled());
- shared = inner_scope.CloseAndEscape(handle(f->shared(), isolate));
- CompileRun("f = null");
- }
-
- // Lookup the optimized code and keep it alive.
- CodeAndLiterals result = shared->SearchOptimizedCodeMap(
- isolate->context()->native_context(), BailoutId::None());
- Handle<Code> optimized_code(result.code, isolate);
-
- // Finish a full GC cycle so that the unoptimized code of 'g' is flushed even
- // though the optimized code for 'f' is reachable via the optimized code map.
- heap->CollectAllGarbage();
-
- // Make a new closure that will get code installed from the code map.
- // Unoptimized code is missing and the deoptimizer will go ballistic.
- CompileRun("var h = mkClosure(); h('bozo');");
-}
-
-
-TEST(LargeObjectSlotRecording) {
- FLAG_manual_evacuation_candidates_selection = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope scope(isolate);
-
- // Create an object on an evacuation candidate.
- SimulateFullSpace(heap->old_space());
- Handle<FixedArray> lit = isolate->factory()->NewFixedArray(4, TENURED);
- Page* evac_page = Page::FromAddress(lit->address());
- evac_page->SetFlag(MemoryChunk::FORCE_EVACUATION_CANDIDATE_FOR_TESTING);
- FixedArray* old_location = *lit;
-
- // Allocate a large object.
- int size = Max(1000000, Page::kMaxRegularHeapObjectSize + KB);
- CHECK(size > Page::kMaxRegularHeapObjectSize);
- Handle<FixedArray> lo = isolate->factory()->NewFixedArray(size, TENURED);
- CHECK(heap->lo_space()->Contains(*lo));
-
- // Start incremental marking to active write barrier.
- SimulateIncrementalMarking(heap, false);
- heap->incremental_marking()->AdvanceIncrementalMarking(
- 10000000, 10000000, IncrementalMarking::IdleStepActions());
-
- // Create references from the large object to the object on the evacuation
- // candidate.
- const int kStep = size / 10;
- for (int i = 0; i < size; i += kStep) {
- lo->set(i, *lit);
- CHECK(lo->get(i) == old_location);
- }
-
- // Move the evaucation candidate object.
- CcTest::heap()->CollectAllGarbage();
-
- // Verify that the pointers in the large object got updated.
- for (int i = 0; i < size; i += kStep) {
- CHECK_EQ(lo->get(i), *lit);
- CHECK(lo->get(i) != old_location);
- }
-}
-
-
-class DummyVisitor : public ObjectVisitor {
- public:
- void VisitPointers(Object** start, Object** end) override {}
-};
-
-
-TEST(DeferredHandles) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- v8::HandleScope scope(reinterpret_cast<v8::Isolate*>(isolate));
- HandleScopeData* data = isolate->handle_scope_data();
- Handle<Object> init(heap->empty_string(), isolate);
- while (data->next < data->limit) {
- Handle<Object> obj(heap->empty_string(), isolate);
- }
- // An entire block of handles has been filled.
- // Next handle would require a new block.
- CHECK(data->next == data->limit);
-
- DeferredHandleScope deferred(isolate);
- DummyVisitor visitor;
- isolate->handle_scope_implementer()->Iterate(&visitor);
- delete deferred.Detach();
-}
-
-
-TEST(IncrementalMarkingStepMakesBigProgressWithLargeObjects) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("function f(n) {"
- " var a = new Array(n);"
- " for (var i = 0; i < n; i += 100) a[i] = i;"
- "};"
- "f(10 * 1024 * 1024);");
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- if (marking->IsStopped()) {
- CcTest::heap()->StartIncrementalMarking();
- }
- // This big step should be sufficient to mark the whole array.
- marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
- CHECK(marking->IsComplete() ||
- marking->IsReadyToOverApproximateWeakClosure());
-}
-
-
-TEST(DisableInlineAllocation) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("function test() {"
- " var x = [];"
- " for (var i = 0; i < 10; i++) {"
- " x[i] = [ {}, [1,2,3], [1,x,3] ];"
- " }"
- "}"
- "function run() {"
- " %OptimizeFunctionOnNextCall(test);"
- " test();"
- " %DeoptimizeFunction(test);"
- "}");
-
- // Warm-up with inline allocation enabled.
- CompileRun("test(); test(); run();");
-
- // Run test with inline allocation disabled.
- CcTest::heap()->DisableInlineAllocation();
- CompileRun("run()");
-
- // Run test with inline allocation re-enabled.
- CcTest::heap()->EnableInlineAllocation();
- CompileRun("run()");
-}
-
-
-static int AllocationSitesCount(Heap* heap) {
- int count = 0;
- for (Object* site = heap->allocation_sites_list();
- !(site->IsUndefined());
- site = AllocationSite::cast(site)->weak_next()) {
- count++;
- }
- return count;
-}
-
-
-TEST(EnsureAllocationSiteDependentCodesProcessed) {
- if (i::FLAG_always_opt || !i::FLAG_crankshaft) return;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
- GlobalHandles* global_handles = isolate->global_handles();
-
- if (!isolate->use_crankshaft()) return;
-
- // The allocation site at the head of the list is ours.
- Handle<AllocationSite> site;
- {
- LocalContext context;
- v8::HandleScope scope(context->GetIsolate());
-
- int count = AllocationSitesCount(heap);
- CompileRun("var bar = function() { return (new Array()); };"
- "var a = bar();"
- "bar();"
- "bar();");
-
- // One allocation site should have been created.
- int new_count = AllocationSitesCount(heap);
- CHECK_EQ(new_count, (count + 1));
- site = Handle<AllocationSite>::cast(
- global_handles->Create(
- AllocationSite::cast(heap->allocation_sites_list())));
-
- CompileRun("%OptimizeFunctionOnNextCall(bar); bar();");
-
- CHECK_EQ(DependentCode::kAllocationSiteTransitionChangedGroup,
- site->dependent_code()->group());
- CHECK_EQ(1, site->dependent_code()->count());
- CHECK(site->dependent_code()->object_at(0)->IsWeakCell());
- Code* function_bar = Code::cast(
- WeakCell::cast(site->dependent_code()->object_at(0))->value());
- Handle<JSFunction> bar_handle = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()
- ->Get(context.local(), v8_str("bar"))
- .ToLocalChecked())));
- CHECK_EQ(bar_handle->code(), function_bar);
- }
-
- // Now make sure that a gc should get rid of the function, even though we
- // still have the allocation site alive.
- for (int i = 0; i < 4; i++) {
- heap->CollectAllGarbage();
- }
-
- // The site still exists because of our global handle, but the code is no
- // longer referred to by dependent_code().
- CHECK(site->dependent_code()->object_at(0)->IsWeakCell() &&
- WeakCell::cast(site->dependent_code()->object_at(0))->cleared());
-}
-
-
-TEST(CellsInOptimizedCodeAreWeak) {
- if (i::FLAG_always_opt || !i::FLAG_crankshaft) return;
- i::FLAG_weak_embedded_objects_in_optimized_code = true;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
-
- if (!isolate->use_crankshaft()) return;
- HandleScope outer_scope(heap->isolate());
- Handle<Code> code;
- {
- LocalContext context;
- HandleScope scope(heap->isolate());
-
- CompileRun("bar = (function() {"
- " function bar() {"
- " return foo(1);"
- " };"
- " var foo = function(x) { with (x) { return 1 + x; } };"
- " bar(foo);"
- " bar(foo);"
- " bar(foo);"
- " %OptimizeFunctionOnNextCall(bar);"
- " bar(foo);"
- " return bar;})();");
-
- Handle<JSFunction> bar = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
- *v8::Local<v8::Function>::Cast(CcTest::global()
- ->Get(context.local(), v8_str("bar"))
- .ToLocalChecked())));
- code = scope.CloseAndEscape(Handle<Code>(bar->code()));
- }
-
- // Now make sure that a gc should get rid of the function
- for (int i = 0; i < 4; i++) {
- heap->CollectAllGarbage();
- }
-
- CHECK(code->marked_for_deoptimization());
-}
-
-
-TEST(ObjectsInOptimizedCodeAreWeak) {
- if (i::FLAG_always_opt || !i::FLAG_crankshaft) return;
- i::FLAG_weak_embedded_objects_in_optimized_code = true;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
-
- if (!isolate->use_crankshaft()) return;
- HandleScope outer_scope(heap->isolate());
- Handle<Code> code;
- {
- LocalContext context;
- HandleScope scope(heap->isolate());
-
- CompileRun("function bar() {"
- " return foo(1);"
- "};"
- "function foo(x) { with (x) { return 1 + x; } };"
- "bar();"
- "bar();"
- "bar();"
- "%OptimizeFunctionOnNextCall(bar);"
- "bar();");
-
- Handle<JSFunction> bar = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
- *v8::Local<v8::Function>::Cast(CcTest::global()
- ->Get(context.local(), v8_str("bar"))
- .ToLocalChecked())));
- code = scope.CloseAndEscape(Handle<Code>(bar->code()));
- }
-
- // Now make sure that a gc should get rid of the function
- for (int i = 0; i < 4; i++) {
- heap->CollectAllGarbage();
- }
-
- CHECK(code->marked_for_deoptimization());
-}
-
-
-TEST(NoWeakHashTableLeakWithIncrementalMarking) {
- if (i::FLAG_always_opt || !i::FLAG_crankshaft) return;
- if (!i::FLAG_incremental_marking) return;
- i::FLAG_weak_embedded_objects_in_optimized_code = true;
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_compilation_cache = false;
- i::FLAG_retain_maps_for_n_gc = 0;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
-
- // Do not run for no-snap builds.
- if (!i::Snapshot::HaveASnapshotToStartFrom(isolate)) return;
-
- v8::internal::Heap* heap = CcTest::heap();
-
- // Get a clean slate regarding optimized functions on the heap.
- i::Deoptimizer::DeoptimizeAll(isolate);
- heap->CollectAllGarbage();
-
- if (!isolate->use_crankshaft()) return;
- HandleScope outer_scope(heap->isolate());
- for (int i = 0; i < 3; i++) {
- SimulateIncrementalMarking(heap);
- {
- LocalContext context;
- HandleScope scope(heap->isolate());
- EmbeddedVector<char, 256> source;
- SNPrintF(source,
- "function bar%d() {"
- " return foo%d(1);"
- "};"
- "function foo%d(x) { with (x) { return 1 + x; } };"
- "bar%d();"
- "bar%d();"
- "bar%d();"
- "%%OptimizeFunctionOnNextCall(bar%d);"
- "bar%d();",
- i, i, i, i, i, i, i, i);
- CompileRun(source.start());
- }
- heap->CollectAllGarbage();
- }
- int elements = 0;
- if (heap->weak_object_to_code_table()->IsHashTable()) {
- WeakHashTable* t = WeakHashTable::cast(heap->weak_object_to_code_table());
- elements = t->NumberOfElements();
- }
- CHECK_EQ(0, elements);
-}
-
-
-static Handle<JSFunction> OptimizeDummyFunction(v8::Isolate* isolate,
- const char* name) {
- EmbeddedVector<char, 256> source;
- SNPrintF(source,
- "function %s() { return 0; }"
- "%s(); %s();"
- "%%OptimizeFunctionOnNextCall(%s);"
- "%s();", name, name, name, name, name);
- CompileRun(source.start());
- i::Handle<JSFunction> fun = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()
- ->Get(isolate->GetCurrentContext(), v8_str(name))
- .ToLocalChecked())));
- return fun;
-}
-
-
-static int GetCodeChainLength(Code* code) {
- int result = 0;
- while (code->next_code_link()->IsCode()) {
- result++;
- code = Code::cast(code->next_code_link());
- }
- return result;
-}
-
-
-TEST(NextCodeLinkIsWeak) {
- i::FLAG_always_opt = false;
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
-
- if (!isolate->use_crankshaft()) return;
- HandleScope outer_scope(heap->isolate());
- Handle<Code> code;
- heap->CollectAllAvailableGarbage();
- int code_chain_length_before, code_chain_length_after;
- {
- HandleScope scope(heap->isolate());
- Handle<JSFunction> mortal =
- OptimizeDummyFunction(CcTest::isolate(), "mortal");
- Handle<JSFunction> immortal =
- OptimizeDummyFunction(CcTest::isolate(), "immortal");
- CHECK_EQ(immortal->code()->next_code_link(), mortal->code());
- code_chain_length_before = GetCodeChainLength(immortal->code());
- // Keep the immortal code and let the mortal code die.
- code = scope.CloseAndEscape(Handle<Code>(immortal->code()));
- CompileRun("mortal = null; immortal = null;");
- }
- heap->CollectAllAvailableGarbage();
- // Now mortal code should be dead.
- code_chain_length_after = GetCodeChainLength(*code);
- CHECK_EQ(code_chain_length_before - 1, code_chain_length_after);
-}
-
-
-static Handle<Code> DummyOptimizedCode(Isolate* isolate) {
- i::byte buffer[i::Assembler::kMinimalBufferSize];
- MacroAssembler masm(isolate, buffer, sizeof(buffer),
- v8::internal::CodeObjectRequired::kYes);
- CodeDesc desc;
- masm.Push(isolate->factory()->undefined_value());
- masm.Drop(1);
- masm.GetCode(&desc);
- Handle<Object> undefined(isolate->heap()->undefined_value(), isolate);
- Handle<Code> code = isolate->factory()->NewCode(
- desc, Code::ComputeFlags(Code::OPTIMIZED_FUNCTION), undefined);
- CHECK(code->IsCode());
- return code;
-}
-
-
-TEST(NextCodeLinkIsWeak2) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
-
- if (!isolate->use_crankshaft()) return;
- HandleScope outer_scope(heap->isolate());
- heap->CollectAllAvailableGarbage();
- Handle<Context> context(Context::cast(heap->native_contexts_list()), isolate);
- Handle<Code> new_head;
- Handle<Object> old_head(context->get(Context::OPTIMIZED_CODE_LIST), isolate);
- {
- HandleScope scope(heap->isolate());
- Handle<Code> immortal = DummyOptimizedCode(isolate);
- Handle<Code> mortal = DummyOptimizedCode(isolate);
- mortal->set_next_code_link(*old_head);
- immortal->set_next_code_link(*mortal);
- context->set(Context::OPTIMIZED_CODE_LIST, *immortal);
- new_head = scope.CloseAndEscape(immortal);
- }
- heap->CollectAllAvailableGarbage();
- // Now mortal code should be dead.
- CHECK_EQ(*old_head, new_head->next_code_link());
-}
-
-
-static bool weak_ic_cleared = false;
-
-static void ClearWeakIC(
- const v8::WeakCallbackInfo<v8::Persistent<v8::Object>>& data) {
- printf("clear weak is called\n");
- weak_ic_cleared = true;
- data.GetParameter()->Reset();
-}
-
-
-TEST(WeakFunctionInConstructor) {
- if (i::FLAG_always_opt) return;
- i::FLAG_stress_compaction = false;
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- LocalContext env;
- v8::HandleScope scope(isolate);
- CompileRun(
- "function createObj(obj) {"
- " return new obj();"
- "}");
- i::Handle<JSFunction> createObj = Handle<JSFunction>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
- CcTest::global()
- ->Get(env.local(), v8_str("createObj"))
- .ToLocalChecked())));
-
- v8::Persistent<v8::Object> garbage;
- {
- v8::HandleScope scope(isolate);
- const char* source =
- " (function() {"
- " function hat() { this.x = 5; }"
- " createObj(hat);"
- " createObj(hat);"
- " return hat;"
- " })();";
- garbage.Reset(isolate, CompileRun(env.local(), source)
- .ToLocalChecked()
- ->ToObject(env.local())
- .ToLocalChecked());
- }
- weak_ic_cleared = false;
- garbage.SetWeak(&garbage, &ClearWeakIC, v8::WeakCallbackType::kParameter);
- Heap* heap = CcTest::i_isolate()->heap();
- heap->CollectAllGarbage();
- CHECK(weak_ic_cleared);
-
- // We've determined the constructor in createObj has had it's weak cell
- // cleared. Now, verify that one additional call with a new function
- // allows monomorphicity.
- Handle<TypeFeedbackVector> feedback_vector = Handle<TypeFeedbackVector>(
- createObj->shared()->feedback_vector(), CcTest::i_isolate());
- for (int i = 0; i < 20; i++) {
- Object* slot_value = feedback_vector->Get(FeedbackVectorSlot(0));
- CHECK(slot_value->IsWeakCell());
- if (WeakCell::cast(slot_value)->cleared()) break;
- heap->CollectAllGarbage();
- }
-
- Object* slot_value = feedback_vector->Get(FeedbackVectorSlot(0));
- CHECK(slot_value->IsWeakCell() && WeakCell::cast(slot_value)->cleared());
- CompileRun(
- "function coat() { this.x = 6; }"
- "createObj(coat);");
- slot_value = feedback_vector->Get(FeedbackVectorSlot(0));
- CHECK(slot_value->IsWeakCell() && !WeakCell::cast(slot_value)->cleared());
-}
-
-
-// Checks that the value returned by execution of the source is weak.
-void CheckWeakness(const char* source) {
- i::FLAG_stress_compaction = false;
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- LocalContext env;
- v8::HandleScope scope(isolate);
- v8::Persistent<v8::Object> garbage;
- {
- v8::HandleScope scope(isolate);
- garbage.Reset(isolate, CompileRun(env.local(), source)
- .ToLocalChecked()
- ->ToObject(env.local())
- .ToLocalChecked());
- }
- weak_ic_cleared = false;
- garbage.SetWeak(&garbage, &ClearWeakIC, v8::WeakCallbackType::kParameter);
- Heap* heap = CcTest::i_isolate()->heap();
- heap->CollectAllGarbage();
- CHECK(weak_ic_cleared);
-}
-
-
-// Each of the following "weak IC" tests creates an IC that embeds a map with
-// the prototype pointing to _proto_ and checks that the _proto_ dies on GC.
-TEST(WeakMapInMonomorphicLoadIC) {
- CheckWeakness("function loadIC(obj) {"
- " return obj.name;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " loadIC(obj);"
- " loadIC(obj);"
- " loadIC(obj);"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInPolymorphicLoadIC) {
- CheckWeakness(
- "function loadIC(obj) {"
- " return obj.name;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " loadIC(obj);"
- " loadIC(obj);"
- " loadIC(obj);"
- " var poly = Object.create(proto);"
- " poly.x = true;"
- " loadIC(poly);"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInMonomorphicKeyedLoadIC) {
- CheckWeakness("function keyedLoadIC(obj, field) {"
- " return obj[field];"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " keyedLoadIC(obj, 'name');"
- " keyedLoadIC(obj, 'name');"
- " keyedLoadIC(obj, 'name');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInPolymorphicKeyedLoadIC) {
- CheckWeakness(
- "function keyedLoadIC(obj, field) {"
- " return obj[field];"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " keyedLoadIC(obj, 'name');"
- " keyedLoadIC(obj, 'name');"
- " keyedLoadIC(obj, 'name');"
- " var poly = Object.create(proto);"
- " poly.x = true;"
- " keyedLoadIC(poly, 'name');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInMonomorphicStoreIC) {
- CheckWeakness("function storeIC(obj, value) {"
- " obj.name = value;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " storeIC(obj, 'x');"
- " storeIC(obj, 'x');"
- " storeIC(obj, 'x');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInPolymorphicStoreIC) {
- CheckWeakness(
- "function storeIC(obj, value) {"
- " obj.name = value;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " storeIC(obj, 'x');"
- " storeIC(obj, 'x');"
- " storeIC(obj, 'x');"
- " var poly = Object.create(proto);"
- " poly.x = true;"
- " storeIC(poly, 'x');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInMonomorphicKeyedStoreIC) {
- CheckWeakness("function keyedStoreIC(obj, field, value) {"
- " obj[field] = value;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " keyedStoreIC(obj, 'x');"
- " keyedStoreIC(obj, 'x');"
- " keyedStoreIC(obj, 'x');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInPolymorphicKeyedStoreIC) {
- CheckWeakness(
- "function keyedStoreIC(obj, field, value) {"
- " obj[field] = value;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " keyedStoreIC(obj, 'x');"
- " keyedStoreIC(obj, 'x');"
- " keyedStoreIC(obj, 'x');"
- " var poly = Object.create(proto);"
- " poly.x = true;"
- " keyedStoreIC(poly, 'x');"
- " return proto;"
- " })();");
-}
-
-
-TEST(WeakMapInMonomorphicCompareNilIC) {
- CheckWeakness("function compareNilIC(obj) {"
- " return obj == null;"
- "}"
- " (function() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " compareNilIC(obj);"
- " compareNilIC(obj);"
- " compareNilIC(obj);"
- " return proto;"
- " })();");
-}
-
-
-Handle<JSFunction> GetFunctionByName(Isolate* isolate, const char* name) {
- Handle<String> str = isolate->factory()->InternalizeUtf8String(name);
- Handle<Object> obj =
- Object::GetProperty(isolate->global_object(), str).ToHandleChecked();
- return Handle<JSFunction>::cast(obj);
-}
-
-
-void CheckIC(Code* code, Code::Kind kind, SharedFunctionInfo* shared,
- int slot_index, InlineCacheState state) {
- if (kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC ||
- kind == Code::CALL_IC) {
- TypeFeedbackVector* vector = shared->feedback_vector();
- FeedbackVectorSlot slot(slot_index);
- if (kind == Code::LOAD_IC) {
- LoadICNexus nexus(vector, slot);
- CHECK_EQ(nexus.StateFromFeedback(), state);
- } else if (kind == Code::KEYED_LOAD_IC) {
- KeyedLoadICNexus nexus(vector, slot);
- CHECK_EQ(nexus.StateFromFeedback(), state);
- } else if (kind == Code::CALL_IC) {
- CallICNexus nexus(vector, slot);
- CHECK_EQ(nexus.StateFromFeedback(), state);
- }
- } else {
- Code* ic = FindFirstIC(code, kind);
- CHECK(ic->is_inline_cache_stub());
- CHECK(ic->ic_state() == state);
- }
-}
-
-
-TEST(MonomorphicStaysMonomorphicAfterGC) {
- if (FLAG_always_opt) return;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(
- "function loadIC(obj) {"
- " return obj.name;"
- "}"
- "function testIC() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " loadIC(obj);"
- " loadIC(obj);"
- " loadIC(obj);"
- " return proto;"
- "};");
- Handle<JSFunction> loadIC = GetFunctionByName(isolate, "loadIC");
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("(testIC())");
- }
- heap->CollectAllGarbage();
- CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, MONOMORPHIC);
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("(testIC())");
- }
- CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, MONOMORPHIC);
-}
-
-
-TEST(PolymorphicStaysPolymorphicAfterGC) {
- if (FLAG_always_opt) return;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- v8::HandleScope scope(CcTest::isolate());
- CompileRun(
- "function loadIC(obj) {"
- " return obj.name;"
- "}"
- "function testIC() {"
- " var proto = {'name' : 'weak'};"
- " var obj = Object.create(proto);"
- " loadIC(obj);"
- " loadIC(obj);"
- " loadIC(obj);"
- " var poly = Object.create(proto);"
- " poly.x = true;"
- " loadIC(poly);"
- " return proto;"
- "};");
- Handle<JSFunction> loadIC = GetFunctionByName(isolate, "loadIC");
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("(testIC())");
- }
- heap->CollectAllGarbage();
- CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, POLYMORPHIC);
- {
- v8::HandleScope scope(CcTest::isolate());
- CompileRun("(testIC())");
- }
- CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, POLYMORPHIC);
-}
-
-
-TEST(WeakCell) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
- v8::internal::Factory* factory = isolate->factory();
-
- HandleScope outer_scope(isolate);
- Handle<WeakCell> weak_cell1;
- {
- HandleScope inner_scope(isolate);
- Handle<HeapObject> value = factory->NewFixedArray(1, NOT_TENURED);
- weak_cell1 = inner_scope.CloseAndEscape(factory->NewWeakCell(value));
- }
-
- Handle<FixedArray> survivor = factory->NewFixedArray(1, NOT_TENURED);
- Handle<WeakCell> weak_cell2;
- {
- HandleScope inner_scope(isolate);
- weak_cell2 = inner_scope.CloseAndEscape(factory->NewWeakCell(survivor));
- }
- CHECK(weak_cell1->value()->IsFixedArray());
- CHECK_EQ(*survivor, weak_cell2->value());
- heap->CollectGarbage(NEW_SPACE);
- CHECK(weak_cell1->value()->IsFixedArray());
- CHECK_EQ(*survivor, weak_cell2->value());
- heap->CollectGarbage(NEW_SPACE);
- CHECK(weak_cell1->value()->IsFixedArray());
- CHECK_EQ(*survivor, weak_cell2->value());
- heap->CollectAllAvailableGarbage();
- CHECK(weak_cell1->cleared());
- CHECK_EQ(*survivor, weak_cell2->value());
-}
-
-
-TEST(WeakCellsWithIncrementalMarking) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- v8::internal::Heap* heap = CcTest::heap();
- v8::internal::Factory* factory = isolate->factory();
-
- const int N = 16;
- HandleScope outer_scope(isolate);
- Handle<FixedArray> survivor = factory->NewFixedArray(1, NOT_TENURED);
- Handle<WeakCell> weak_cells[N];
-
- for (int i = 0; i < N; i++) {
- HandleScope inner_scope(isolate);
- Handle<HeapObject> value =
- i == 0 ? survivor : factory->NewFixedArray(1, NOT_TENURED);
- Handle<WeakCell> weak_cell = factory->NewWeakCell(value);
- CHECK(weak_cell->value()->IsFixedArray());
- IncrementalMarking* marking = heap->incremental_marking();
- if (marking->IsStopped()) {
- heap->StartIncrementalMarking();
- }
- marking->Step(128, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
- heap->CollectGarbage(NEW_SPACE);
- CHECK(weak_cell->value()->IsFixedArray());
- weak_cells[i] = inner_scope.CloseAndEscape(weak_cell);
- }
- heap->CollectAllGarbage();
- CHECK_EQ(*survivor, weak_cells[0]->value());
- for (int i = 1; i < N; i++) {
- CHECK(weak_cells[i]->cleared());
- }
-}
-
-
-#ifdef DEBUG
-TEST(AddInstructionChangesNewSpacePromotion) {
- i::FLAG_allow_natives_syntax = true;
- i::FLAG_expose_gc = true;
- i::FLAG_stress_compaction = true;
- i::FLAG_gc_interval = 1000;
- CcTest::InitializeVM();
- if (!i::FLAG_allocation_site_pretenuring) return;
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- LocalContext env;
- CompileRun(
- "function add(a, b) {"
- " return a + b;"
- "}"
- "add(1, 2);"
- "add(\"a\", \"b\");"
- "var oldSpaceObject;"
- "gc();"
- "function crash(x) {"
- " var object = {a: null, b: null};"
- " var result = add(1.5, x | 0);"
- " object.a = result;"
- " oldSpaceObject = object;"
- " return object;"
- "}"
- "crash(1);"
- "crash(1);"
- "%OptimizeFunctionOnNextCall(crash);"
- "crash(1);");
-
- v8::Local<v8::Object> global = CcTest::global();
- v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(
- global->Get(env.local(), v8_str("crash")).ToLocalChecked());
- v8::Local<v8::Value> args1[] = {v8_num(1)};
- heap->DisableInlineAllocation();
- heap->set_allocation_timeout(1);
- g->Call(env.local(), global, 1, args1).ToLocalChecked();
- heap->CollectAllGarbage();
-}
-
-
-void OnFatalErrorExpectOOM(const char* location, const char* message) {
- // Exit with 0 if the location matches our expectation.
- exit(strcmp(location, "CALL_AND_RETRY_LAST"));
-}
-
-
-TEST(CEntryStubOOM) {
- i::FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- CcTest::isolate()->SetFatalErrorHandler(OnFatalErrorExpectOOM);
-
- v8::Local<v8::Value> result = CompileRun(
- "%SetFlags('--gc-interval=1');"
- "var a = [];"
- "a.__proto__ = [];"
- "a.unshift(1)");
-
- CHECK(result->IsNumber());
-}
-
-#endif // DEBUG
-
-
-static void InterruptCallback357137(v8::Isolate* isolate, void* data) { }
-
-
-static void RequestInterrupt(const v8::FunctionCallbackInfo<v8::Value>& args) {
- CcTest::isolate()->RequestInterrupt(&InterruptCallback357137, NULL);
-}
-
-
-UNINITIALIZED_TEST(Regress538257) {
- i::FLAG_manual_evacuation_candidates_selection = true;
- v8::Isolate::CreateParams create_params;
- // Set heap limits.
- create_params.constraints.set_max_semi_space_size(1 * Page::kPageSize / MB);
- create_params.constraints.set_max_old_space_size(6 * Page::kPageSize / MB);
- create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
- v8::Isolate* isolate = v8::Isolate::New(create_params);
- isolate->Enter();
- {
- i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
- HandleScope handle_scope(i_isolate);
- PagedSpace* old_space = i_isolate->heap()->old_space();
- const int kMaxObjects = 10000;
- const int kFixedArrayLen = 512;
- Handle<FixedArray> objects[kMaxObjects];
- for (int i = 0; (i < kMaxObjects) && old_space->CanExpand(Page::kPageSize);
- i++) {
- objects[i] = i_isolate->factory()->NewFixedArray(kFixedArrayLen, TENURED);
- Page::FromAddress(objects[i]->address())
- ->SetFlag(MemoryChunk::FORCE_EVACUATION_CANDIDATE_FOR_TESTING);
- }
- SimulateFullSpace(old_space);
- i_isolate->heap()->CollectGarbage(OLD_SPACE);
- // If we get this far, we've successfully aborted compaction. Any further
- // allocations might trigger OOM.
- }
- isolate->Exit();
- isolate->Dispose();
-}
-
-
-TEST(Regress357137) {
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope hscope(isolate);
- v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
- global->Set(
- v8::String::NewFromUtf8(isolate, "interrupt", v8::NewStringType::kNormal)
- .ToLocalChecked(),
- v8::FunctionTemplate::New(isolate, RequestInterrupt));
- v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
- CHECK(!context.IsEmpty());
- v8::Context::Scope cscope(context);
-
- v8::Local<v8::Value> result = CompileRun(
- "var locals = '';"
- "for (var i = 0; i < 512; i++) locals += 'var v' + i + '= 42;';"
- "eval('function f() {' + locals + 'return function() { return v0; }; }');"
- "interrupt();" // This triggers a fake stack overflow in f.
- "f()()");
- CHECK_EQ(42.0, result->ToNumber(context).ToLocalChecked()->Value());
-}
-
-
-TEST(Regress507979) {
- const int kFixedArrayLen = 10;
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- HandleScope handle_scope(isolate);
-
- Handle<FixedArray> o1 = isolate->factory()->NewFixedArray(kFixedArrayLen);
- Handle<FixedArray> o2 = isolate->factory()->NewFixedArray(kFixedArrayLen);
- CHECK(heap->InNewSpace(o1->address()));
- CHECK(heap->InNewSpace(o2->address()));
-
- HeapIterator it(heap, i::HeapIterator::kFilterUnreachable);
-
- // Replace parts of an object placed before a live object with a filler. This
- // way the filler object shares the mark bits with the following live object.
- o1->Shrink(kFixedArrayLen - 1);
-
- for (HeapObject* obj = it.next(); obj != NULL; obj = it.next()) {
- // Let's not optimize the loop away.
- CHECK(obj->address() != nullptr);
- }
-}
-
-
-TEST(ArrayShiftSweeping) {
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
-
- v8::Local<v8::Value> result = CompileRun(
- "var array = new Array(400);"
- "var tmp = new Array(1000);"
- "array[0] = 10;"
- "gc();"
- "gc();"
- "array.shift();"
- "array;");
-
- Handle<JSObject> o = Handle<JSObject>::cast(
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(result)));
- CHECK(heap->InOldSpace(o->elements()));
- CHECK(heap->InOldSpace(*o));
- Page* page = Page::FromAddress(o->elements()->address());
- CHECK(page->parallel_sweeping_state().Value() <=
- MemoryChunk::kSweepingFinalize ||
- Marking::IsBlack(Marking::MarkBitFrom(o->elements())));
-}
-
-
-UNINITIALIZED_TEST(PromotionQueue) {
- i::FLAG_expose_gc = true;
- i::FLAG_max_semi_space_size = 2 * (Page::kPageSize / MB);
- i::FLAG_min_semi_space_size = i::FLAG_max_semi_space_size;
- v8::Isolate::CreateParams create_params;
- create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
- v8::Isolate* isolate = v8::Isolate::New(create_params);
- i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
- {
- v8::Isolate::Scope isolate_scope(isolate);
- v8::HandleScope handle_scope(isolate);
- v8::Context::New(isolate)->Enter();
- Heap* heap = i_isolate->heap();
- NewSpace* new_space = heap->new_space();
-
- // In this test we will try to overwrite the promotion queue which is at the
- // end of to-space. To actually make that possible, we need at least two
- // semi-space pages and take advantage of fragmentation.
- // (1) Use a semi-space consisting of two pages.
- // (2) Create a few small long living objects and call the scavenger to
- // move them to the other semi-space.
- // (3) Create a huge object, i.e., remainder of first semi-space page and
- // create another huge object which should be of maximum allocatable memory
- // size of the second semi-space page.
- // (4) Call the scavenger again.
- // What will happen is: the scavenger will promote the objects created in
- // (2) and will create promotion queue entries at the end of the second
- // semi-space page during the next scavenge when it promotes the objects to
- // the old generation. The first allocation of (3) will fill up the first
- // semi-space page. The second allocation in (3) will not fit into the
- // first semi-space page, but it will overwrite the promotion queue which
- // are in the second semi-space page. If the right guards are in place, the
- // promotion queue will be evacuated in that case.
-
-
- CHECK(new_space->IsAtMaximumCapacity());
- CHECK(i::FLAG_min_semi_space_size * MB == new_space->TotalCapacity());
-
- // Call the scavenger two times to get an empty new space
- heap->CollectGarbage(NEW_SPACE);
- heap->CollectGarbage(NEW_SPACE);
-
- // First create a few objects which will survive a scavenge, and will get
- // promoted to the old generation later on. These objects will create
- // promotion queue entries at the end of the second semi-space page.
- const int number_handles = 12;
- Handle<FixedArray> handles[number_handles];
- for (int i = 0; i < number_handles; i++) {
- handles[i] = i_isolate->factory()->NewFixedArray(1, NOT_TENURED);
- }
-
- heap->CollectGarbage(NEW_SPACE);
- CHECK(i::FLAG_min_semi_space_size * MB == new_space->TotalCapacity());
-
- // Fill-up the first semi-space page.
- FillUpOnePage(new_space);
-
- // Create a small object to initialize the bump pointer on the second
- // semi-space page.
- Handle<FixedArray> small =
- i_isolate->factory()->NewFixedArray(1, NOT_TENURED);
- CHECK(heap->InNewSpace(*small));
-
- // Fill-up the second semi-space page.
- FillUpOnePage(new_space);
-
- // This scavenge will corrupt memory if the promotion queue is not
- // evacuated.
- heap->CollectGarbage(NEW_SPACE);
- }
- isolate->Dispose();
-}
-
-
-TEST(Regress388880) {
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
-
- Handle<Map> map1 = Map::Create(isolate, 1);
- Handle<Map> map2 =
- Map::CopyWithField(map1, factory->NewStringFromStaticChars("foo"),
- HeapType::Any(isolate), NONE, Representation::Tagged(),
- OMIT_TRANSITION).ToHandleChecked();
-
- int desired_offset = Page::kPageSize - map1->instance_size();
-
- // Allocate padding objects in old pointer space so, that object allocated
- // afterwards would end at the end of the page.
- SimulateFullSpace(heap->old_space());
- int padding_size = desired_offset - Page::kObjectStartOffset;
- CreatePadding(heap, padding_size, TENURED);
-
- Handle<JSObject> o = factory->NewJSObjectFromMap(map1, TENURED);
- o->set_properties(*factory->empty_fixed_array());
-
- // Ensure that the object allocated where we need it.
- Page* page = Page::FromAddress(o->address());
- CHECK_EQ(desired_offset, page->Offset(o->address()));
-
- // Now we have an object right at the end of the page.
-
- // Enable incremental marking to trigger actions in Heap::AdjustLiveBytes()
- // that would cause crash.
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- marking->Stop();
- CcTest::heap()->StartIncrementalMarking();
- CHECK(marking->IsMarking());
-
- // Now everything is set up for crashing in JSObject::MigrateFastToFast()
- // when it calls heap->AdjustLiveBytes(...).
- JSObject::MigrateToMap(o, map2);
-}
-
-
-TEST(Regress3631) {
- i::FLAG_expose_gc = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- IncrementalMarking* marking = CcTest::heap()->incremental_marking();
- v8::Local<v8::Value> result = CompileRun(
- "var weak_map = new WeakMap();"
- "var future_keys = [];"
- "for (var i = 0; i < 50; i++) {"
- " var key = {'k' : i + 0.1};"
- " weak_map.set(key, 1);"
- " future_keys.push({'x' : i + 0.2});"
- "}"
- "weak_map");
- if (marking->IsStopped()) {
- CcTest::heap()->StartIncrementalMarking();
- }
- // Incrementally mark the backing store.
- Handle<JSReceiver> obj =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(result));
- Handle<JSWeakCollection> weak_map(reinterpret_cast<JSWeakCollection*>(*obj));
- while (!Marking::IsBlack(
- Marking::MarkBitFrom(HeapObject::cast(weak_map->table()))) &&
- !marking->IsStopped()) {
- marking->Step(MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
- }
- // Stash the backing store in a handle.
- Handle<Object> save(weak_map->table(), isolate);
- // The following line will update the backing store.
- CompileRun(
- "for (var i = 0; i < 50; i++) {"
- " weak_map.set(future_keys[i], i);"
- "}");
- heap->incremental_marking()->set_should_hurry(true);
- heap->CollectGarbage(OLD_SPACE);
-}
-
-
-TEST(Regress442710) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
-
- HandleScope sc(isolate);
- Handle<JSGlobalObject> global(
- CcTest::i_isolate()->context()->global_object());
- Handle<JSArray> array = factory->NewJSArray(2);
-
- Handle<String> name = factory->InternalizeUtf8String("testArray");
- JSReceiver::SetProperty(global, name, array, SLOPPY).Check();
- CompileRun("testArray[0] = 1; testArray[1] = 2; testArray.shift();");
- heap->CollectGarbage(OLD_SPACE);
-}
-
-
-HEAP_TEST(NumberStringCacheSize) {
- // Test that the number-string cache has not been resized in the snapshot.
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- if (!isolate->snapshot_available()) return;
- Heap* heap = isolate->heap();
- CHECK_EQ(Heap::kInitialNumberStringCacheSize * 2,
- heap->number_string_cache()->length());
-}
-
-
-TEST(Regress3877) {
- CcTest::InitializeVM();
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Factory* factory = isolate->factory();
- HandleScope scope(isolate);
- CompileRun("function cls() { this.x = 10; }");
- Handle<WeakCell> weak_prototype;
- {
- HandleScope inner_scope(isolate);
- v8::Local<v8::Value> result = CompileRun("cls.prototype");
- Handle<JSReceiver> proto =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(result));
- weak_prototype = inner_scope.CloseAndEscape(factory->NewWeakCell(proto));
- }
- CHECK(!weak_prototype->cleared());
- CompileRun(
- "var a = { };"
- "a.x = new cls();"
- "cls.prototype = null;");
- for (int i = 0; i < 4; i++) {
- heap->CollectAllGarbage();
- }
- // The map of a.x keeps prototype alive
- CHECK(!weak_prototype->cleared());
- // Change the map of a.x and make the previous map garbage collectable.
- CompileRun("a.x.__proto__ = {};");
- for (int i = 0; i < 4; i++) {
- heap->CollectAllGarbage();
- }
- CHECK(weak_prototype->cleared());
-}
-
-
-Handle<WeakCell> AddRetainedMap(Isolate* isolate, Heap* heap) {
- HandleScope inner_scope(isolate);
- Handle<Map> map = Map::Create(isolate, 1);
- v8::Local<v8::Value> result =
- CompileRun("(function () { return {x : 10}; })();");
- Handle<JSReceiver> proto =
- v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(result));
- Map::SetPrototype(map, proto);
- heap->AddRetainedMap(map);
- return inner_scope.CloseAndEscape(Map::WeakCellForMap(map));
-}
-
-
-void CheckMapRetainingFor(int n) {
- FLAG_retain_maps_for_n_gc = n;
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- Handle<WeakCell> weak_cell = AddRetainedMap(isolate, heap);
- CHECK(!weak_cell->cleared());
- for (int i = 0; i < n; i++) {
- heap->CollectGarbage(OLD_SPACE);
- }
- CHECK(!weak_cell->cleared());
- heap->CollectGarbage(OLD_SPACE);
- CHECK(weak_cell->cleared());
-}
-
-
-TEST(MapRetaining) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- CheckMapRetainingFor(FLAG_retain_maps_for_n_gc);
- CheckMapRetainingFor(0);
- CheckMapRetainingFor(1);
- CheckMapRetainingFor(7);
-}
-
-
-TEST(RegressArrayListGC) {
- FLAG_retain_maps_for_n_gc = 1;
- FLAG_incremental_marking = 0;
- FLAG_gc_global = true;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- AddRetainedMap(isolate, heap);
- Handle<Map> map = Map::Create(isolate, 1);
- heap->CollectGarbage(OLD_SPACE);
- // Force GC in old space on next addition of retained map.
- Map::WeakCellForMap(map);
- SimulateFullSpace(CcTest::heap()->new_space());
- for (int i = 0; i < 10; i++) {
- heap->AddRetainedMap(map);
- }
- heap->CollectGarbage(OLD_SPACE);
-}
-
-
-#ifdef DEBUG
-TEST(PathTracer) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- v8::Local<v8::Value> result = CompileRun("'abc'");
- Handle<Object> o = v8::Utils::OpenHandle(*result);
- CcTest::i_isolate()->heap()->TracePathToObject(*o);
-}
-#endif // DEBUG
-
-
-TEST(WritableVsImmortalRoots) {
- for (int i = 0; i < Heap::kStrongRootListLength; ++i) {
- Heap::RootListIndex root_index = static_cast<Heap::RootListIndex>(i);
- bool writable = Heap::RootCanBeWrittenAfterInitialization(root_index);
- bool immortal = Heap::RootIsImmortalImmovable(root_index);
- // A root value can be writable, immortal, or neither, but not both.
- CHECK(!immortal || !writable);
- }
-}
-
-
-static void TestRightTrimFixedTypedArray(i::ExternalArrayType type,
- int initial_length,
- int elements_to_trim) {
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Factory* factory = isolate->factory();
- Heap* heap = isolate->heap();
-
- Handle<FixedTypedArrayBase> array =
- factory->NewFixedTypedArray(initial_length, type, true);
- int old_size = array->size();
- heap->RightTrimFixedArray<Heap::CONCURRENT_TO_SWEEPER>(*array,
- elements_to_trim);
-
- // Check that free space filler is at the right place and did not smash the
- // array header.
- CHECK(array->IsFixedArrayBase());
- CHECK_EQ(initial_length - elements_to_trim, array->length());
- int new_size = array->size();
- if (new_size != old_size) {
- // Free space filler should be created in this case.
- Address next_obj_address = array->address() + array->size();
- CHECK(HeapObject::FromAddress(next_obj_address)->IsFiller());
- }
- heap->CollectAllAvailableGarbage();
-}
-
-
-TEST(Regress472513) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- // The combination of type/initial_length/elements_to_trim triggered
- // typed array header smashing with free space filler (crbug/472513).
-
- // 64-bit cases.
- TestRightTrimFixedTypedArray(i::kExternalUint8Array, 32, 6);
- TestRightTrimFixedTypedArray(i::kExternalUint8Array, 32 - 7, 6);
- TestRightTrimFixedTypedArray(i::kExternalUint16Array, 16, 6);
- TestRightTrimFixedTypedArray(i::kExternalUint16Array, 16 - 3, 6);
- TestRightTrimFixedTypedArray(i::kExternalUint32Array, 8, 6);
- TestRightTrimFixedTypedArray(i::kExternalUint32Array, 8 - 1, 6);
-
- // 32-bit cases.
- TestRightTrimFixedTypedArray(i::kExternalUint8Array, 16, 3);
- TestRightTrimFixedTypedArray(i::kExternalUint8Array, 16 - 3, 3);
- TestRightTrimFixedTypedArray(i::kExternalUint16Array, 8, 3);
- TestRightTrimFixedTypedArray(i::kExternalUint16Array, 8 - 1, 3);
- TestRightTrimFixedTypedArray(i::kExternalUint32Array, 4, 3);
-}
-
-
-TEST(WeakFixedArray) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
-
- Handle<HeapNumber> number = CcTest::i_isolate()->factory()->NewHeapNumber(1);
- Handle<WeakFixedArray> array = WeakFixedArray::Add(Handle<Object>(), number);
- array->Remove(number);
- array->Compact<WeakFixedArray::NullCallback>();
- WeakFixedArray::Add(array, number);
-}
-
-
-TEST(PreprocessStackTrace) {
- // Do not automatically trigger early GC.
- FLAG_gc_interval = -1;
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- v8::TryCatch try_catch(CcTest::isolate());
- CompileRun("throw new Error();");
- CHECK(try_catch.HasCaught());
- Isolate* isolate = CcTest::i_isolate();
- Handle<Object> exception = v8::Utils::OpenHandle(*try_catch.Exception());
- Handle<Name> key = isolate->factory()->stack_trace_symbol();
- Handle<Object> stack_trace =
- JSObject::GetProperty(exception, key).ToHandleChecked();
- Handle<Object> code =
- Object::GetElement(isolate, stack_trace, 3).ToHandleChecked();
- CHECK(code->IsCode());
-
- isolate->heap()->CollectAllAvailableGarbage("stack trace preprocessing");
-
- Handle<Object> pos =
- Object::GetElement(isolate, stack_trace, 3).ToHandleChecked();
- CHECK(pos->IsSmi());
-
- Handle<JSArray> stack_trace_array = Handle<JSArray>::cast(stack_trace);
- int array_length = Smi::cast(stack_trace_array->length())->value();
- for (int i = 0; i < array_length; i++) {
- Handle<Object> element =
- Object::GetElement(isolate, stack_trace, i).ToHandleChecked();
- CHECK(!element->IsCode());
- }
-}
-
-
-static bool utils_has_been_collected = false;
-
-static void UtilsHasBeenCollected(
- const v8::WeakCallbackInfo<v8::Persistent<v8::Object>>& data) {
- utils_has_been_collected = true;
- data.GetParameter()->Reset();
-}
-
-
-TEST(BootstrappingExports) {
- // Expose utils object and delete it to observe that it is indeed
- // being garbage-collected.
- FLAG_expose_natives_as = "utils";
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- LocalContext env;
-
- if (Snapshot::HaveASnapshotToStartFrom(CcTest::i_isolate())) return;
-
- utils_has_been_collected = false;
-
- v8::Persistent<v8::Object> utils;
-
- {
- v8::HandleScope scope(isolate);
- v8::Local<v8::String> name = v8_str("utils");
- utils.Reset(isolate, CcTest::global()
- ->Get(env.local(), name)
- .ToLocalChecked()
- ->ToObject(env.local())
- .ToLocalChecked());
- CHECK(CcTest::global()->Delete(env.local(), name).FromJust());
- }
-
- utils.SetWeak(&utils, UtilsHasBeenCollected,
- v8::WeakCallbackType::kParameter);
-
- CcTest::heap()->CollectAllAvailableGarbage("fire weak callbacks");
-
- CHECK(utils_has_been_collected);
-}
-
-
-TEST(Regress1878) {
- FLAG_allow_natives_syntax = true;
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope scope(isolate);
- v8::Local<v8::Function> constructor = v8::Utils::CallableToLocal(
- CcTest::i_isolate()->internal_array_function());
- LocalContext env;
- CHECK(CcTest::global()
- ->Set(env.local(), v8_str("InternalArray"), constructor)
- .FromJust());
-
- v8::TryCatch try_catch(isolate);
-
- CompileRun(
- "var a = Array();"
- "for (var i = 0; i < 1000; i++) {"
- " var ai = new InternalArray(10000);"
- " if (%HaveSameMap(ai, a)) throw Error();"
- " if (!%HasFastObjectElements(ai)) throw Error();"
- "}"
- "for (var i = 0; i < 1000; i++) {"
- " var ai = new InternalArray(10000);"
- " if (%HaveSameMap(ai, a)) throw Error();"
- " if (!%HasFastObjectElements(ai)) throw Error();"
- "}");
-
- CHECK(!try_catch.HasCaught());
-}
-
-
-void AllocateInSpace(Isolate* isolate, size_t bytes, AllocationSpace space) {
- CHECK(bytes >= FixedArray::kHeaderSize);
- CHECK(bytes % kPointerSize == 0);
- Factory* factory = isolate->factory();
- HandleScope scope(isolate);
- AlwaysAllocateScope always_allocate(isolate);
- int elements =
- static_cast<int>((bytes - FixedArray::kHeaderSize) / kPointerSize);
- Handle<FixedArray> array = factory->NewFixedArray(
- elements, space == NEW_SPACE ? NOT_TENURED : TENURED);
- CHECK((space == NEW_SPACE) == isolate->heap()->InNewSpace(*array));
- CHECK_EQ(bytes, static_cast<size_t>(array->Size()));
-}
-
-
-TEST(NewSpaceAllocationCounter) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- size_t counter1 = heap->NewSpaceAllocationCounter();
- heap->CollectGarbage(NEW_SPACE);
- const size_t kSize = 1024;
- AllocateInSpace(isolate, kSize, NEW_SPACE);
- size_t counter2 = heap->NewSpaceAllocationCounter();
- CHECK_EQ(kSize, counter2 - counter1);
- heap->CollectGarbage(NEW_SPACE);
- size_t counter3 = heap->NewSpaceAllocationCounter();
- CHECK_EQ(0U, counter3 - counter2);
- // Test counter overflow.
- size_t max_counter = -1;
- heap->set_new_space_allocation_counter(max_counter - 10 * kSize);
- size_t start = heap->NewSpaceAllocationCounter();
- for (int i = 0; i < 20; i++) {
- AllocateInSpace(isolate, kSize, NEW_SPACE);
- size_t counter = heap->NewSpaceAllocationCounter();
- CHECK_EQ(kSize, counter - start);
- start = counter;
- }
-}
-
-
-TEST(OldSpaceAllocationCounter) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- size_t counter1 = heap->OldGenerationAllocationCounter();
- heap->CollectGarbage(NEW_SPACE);
- heap->CollectGarbage(NEW_SPACE);
- const size_t kSize = 1024;
- AllocateInSpace(isolate, kSize, OLD_SPACE);
- size_t counter2 = heap->OldGenerationAllocationCounter();
- // TODO(ulan): replace all CHECK_LE with CHECK_EQ after v8:4148 is fixed.
- CHECK_LE(kSize, counter2 - counter1);
- heap->CollectGarbage(NEW_SPACE);
- size_t counter3 = heap->OldGenerationAllocationCounter();
- CHECK_EQ(0u, counter3 - counter2);
- AllocateInSpace(isolate, kSize, OLD_SPACE);
- heap->CollectGarbage(OLD_SPACE);
- size_t counter4 = heap->OldGenerationAllocationCounter();
- CHECK_LE(kSize, counter4 - counter3);
- // Test counter overflow.
- size_t max_counter = -1;
- heap->set_old_generation_allocation_counter(max_counter - 10 * kSize);
- size_t start = heap->OldGenerationAllocationCounter();
- for (int i = 0; i < 20; i++) {
- AllocateInSpace(isolate, kSize, OLD_SPACE);
- size_t counter = heap->OldGenerationAllocationCounter();
- CHECK_LE(kSize, counter - start);
- start = counter;
- }
-}
-
-
-TEST(NewSpaceAllocationThroughput) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- GCTracer* tracer = heap->tracer();
- int time1 = 100;
- size_t counter1 = 1000;
- tracer->SampleAllocation(time1, counter1, 0);
- int time2 = 200;
- size_t counter2 = 2000;
- tracer->SampleAllocation(time2, counter2, 0);
- size_t throughput =
- tracer->NewSpaceAllocationThroughputInBytesPerMillisecond();
- CHECK_EQ((counter2 - counter1) / (time2 - time1), throughput);
- int time3 = 1000;
- size_t counter3 = 30000;
- tracer->SampleAllocation(time3, counter3, 0);
- throughput = tracer->NewSpaceAllocationThroughputInBytesPerMillisecond();
- CHECK_EQ((counter3 - counter1) / (time3 - time1), throughput);
-}
-
-
-TEST(NewSpaceAllocationThroughput2) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- GCTracer* tracer = heap->tracer();
- int time1 = 100;
- size_t counter1 = 1000;
- tracer->SampleAllocation(time1, counter1, 0);
- int time2 = 200;
- size_t counter2 = 2000;
- tracer->SampleAllocation(time2, counter2, 0);
- size_t throughput =
- tracer->NewSpaceAllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ((counter2 - counter1) / (time2 - time1), throughput);
- int time3 = 1000;
- size_t counter3 = 30000;
- tracer->SampleAllocation(time3, counter3, 0);
- throughput = tracer->NewSpaceAllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ((counter3 - counter1) / (time3 - time1), throughput);
-}
-
-
-static void CheckLeak(const v8::FunctionCallbackInfo<v8::Value>& args) {
- Isolate* isolate = CcTest::i_isolate();
- Object* message =
- *reinterpret_cast<Object**>(isolate->pending_message_obj_address());
- CHECK(message->IsTheHole());
-}
-
-
-TEST(MessageObjectLeak) {
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope scope(isolate);
- v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
- global->Set(
- v8::String::NewFromUtf8(isolate, "check", v8::NewStringType::kNormal)
- .ToLocalChecked(),
- v8::FunctionTemplate::New(isolate, CheckLeak));
- v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
- v8::Context::Scope cscope(context);
-
- const char* test =
- "try {"
- " throw 'message 1';"
- "} catch (e) {"
- "}"
- "check();"
- "L: try {"
- " throw 'message 2';"
- "} finally {"
- " break L;"
- "}"
- "check();";
- CompileRun(test);
-
- const char* flag = "--turbo-filter=*";
- FlagList::SetFlagsFromString(flag, StrLength(flag));
- FLAG_always_opt = true;
- FLAG_turbo_try_finally = true;
-
- CompileRun(test);
-}
-
-
-static void CheckEqualSharedFunctionInfos(
- const v8::FunctionCallbackInfo<v8::Value>& args) {
- Handle<Object> obj1 = v8::Utils::OpenHandle(*args[0]);
- Handle<Object> obj2 = v8::Utils::OpenHandle(*args[1]);
- Handle<JSFunction> fun1 = Handle<JSFunction>::cast(obj1);
- Handle<JSFunction> fun2 = Handle<JSFunction>::cast(obj2);
- CHECK(fun1->shared() == fun2->shared());
-}
-
-
-static void RemoveCodeAndGC(const v8::FunctionCallbackInfo<v8::Value>& args) {
- Isolate* isolate = CcTest::i_isolate();
- Handle<Object> obj = v8::Utils::OpenHandle(*args[0]);
- Handle<JSFunction> fun = Handle<JSFunction>::cast(obj);
- fun->ReplaceCode(*isolate->builtins()->CompileLazy());
- fun->shared()->ReplaceCode(*isolate->builtins()->CompileLazy());
- isolate->heap()->CollectAllAvailableGarbage("remove code and gc");
-}
-
-
-TEST(CanonicalSharedFunctionInfo) {
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope scope(isolate);
- v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
- global->Set(isolate, "check", v8::FunctionTemplate::New(
- isolate, CheckEqualSharedFunctionInfos));
- global->Set(isolate, "remove",
- v8::FunctionTemplate::New(isolate, RemoveCodeAndGC));
- v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
- v8::Context::Scope cscope(context);
- CompileRun(
- "function f() { return function g() {}; }"
- "var g1 = f();"
- "remove(f);"
- "var g2 = f();"
- "check(g1, g2);");
-
- CompileRun(
- "function f() { return (function() { return function g() {}; })(); }"
- "var g1 = f();"
- "remove(f);"
- "var g2 = f();"
- "check(g1, g2);");
-}
-
-
-TEST(OldGenerationAllocationThroughput) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- GCTracer* tracer = heap->tracer();
- int time1 = 100;
- size_t counter1 = 1000;
- tracer->SampleAllocation(time1, 0, counter1);
- int time2 = 200;
- size_t counter2 = 2000;
- tracer->SampleAllocation(time2, 0, counter2);
- size_t throughput =
- tracer->OldGenerationAllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ((counter2 - counter1) / (time2 - time1), throughput);
- int time3 = 1000;
- size_t counter3 = 30000;
- tracer->SampleAllocation(time3, 0, counter3);
- throughput =
- tracer->OldGenerationAllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ((counter3 - counter1) / (time3 - time1), throughput);
-}
-
-
-TEST(AllocationThroughput) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = isolate->heap();
- GCTracer* tracer = heap->tracer();
- int time1 = 100;
- size_t counter1 = 1000;
- tracer->SampleAllocation(time1, counter1, counter1);
- int time2 = 200;
- size_t counter2 = 2000;
- tracer->SampleAllocation(time2, counter2, counter2);
- size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ(2 * (counter2 - counter1) / (time2 - time1), throughput);
- int time3 = 1000;
- size_t counter3 = 30000;
- tracer->SampleAllocation(time3, counter3, counter3);
- throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
- CHECK_EQ(2 * (counter3 - counter1) / (time3 - time1), throughput);
-}
-
-
-TEST(ContextMeasure) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- LocalContext context;
-
- int size_upper_limit = 0;
- int count_upper_limit = 0;
- HeapIterator it(CcTest::heap());
- for (HeapObject* obj = it.next(); obj != NULL; obj = it.next()) {
- size_upper_limit += obj->Size();
- count_upper_limit++;
- }
-
- ContextMeasure measure(*isolate->native_context());
-
- PrintF("Context size : %d bytes\n", measure.Size());
- PrintF("Context object count: %d\n", measure.Count());
-
- CHECK_LE(1000, measure.Count());
- CHECK_LE(50000, measure.Size());
-
- CHECK_LE(measure.Count(), count_upper_limit);
- CHECK_LE(measure.Size(), size_upper_limit);
-}
-
-
-TEST(ScriptIterator) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = CcTest::heap();
- LocalContext context;
-
- heap->CollectAllGarbage();
-
- int script_count = 0;
- {
- HeapIterator it(heap);
- for (HeapObject* obj = it.next(); obj != NULL; obj = it.next()) {
- if (obj->IsScript()) script_count++;
- }
- }
-
- {
- Script::Iterator iterator(isolate);
- while (iterator.Next()) script_count--;
- }
-
- CHECK_EQ(0, script_count);
-}
-
-
-TEST(SharedFunctionInfoIterator) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Isolate* isolate = CcTest::i_isolate();
- Heap* heap = CcTest::heap();
- LocalContext context;
-
- heap->CollectAllGarbage();
- heap->CollectAllGarbage();
-
- int sfi_count = 0;
- {
- HeapIterator it(heap);
- for (HeapObject* obj = it.next(); obj != NULL; obj = it.next()) {
- if (!obj->IsSharedFunctionInfo()) continue;
- sfi_count++;
- }
- }
-
- {
- SharedFunctionInfo::Iterator iterator(isolate);
- while (iterator.Next()) sfi_count--;
- }
-
- CHECK_EQ(0, sfi_count);
-}
-
-
-template <typename T>
-static UniqueId MakeUniqueId(const Persistent<T>& p) {
- return UniqueId(reinterpret_cast<uintptr_t>(*v8::Utils::OpenPersistent(p)));
-}
-
-
-TEST(Regress519319) {
- CcTest::InitializeVM();
- v8::Isolate* isolate = CcTest::isolate();
- v8::HandleScope scope(isolate);
- Heap* heap = CcTest::heap();
- LocalContext context;
-
- v8::Persistent<Value> parent;
- v8::Persistent<Value> child;
-
- parent.Reset(isolate, v8::Object::New(isolate));
- child.Reset(isolate, v8::Object::New(isolate));
-
- SimulateFullSpace(heap->old_space());
- heap->CollectGarbage(OLD_SPACE);
- {
- UniqueId id = MakeUniqueId(parent);
- isolate->SetObjectGroupId(parent, id);
- isolate->SetReferenceFromGroup(id, child);
- }
- // The CollectGarbage call above starts sweeper threads.
- // The crash will happen if the following two functions
- // are called before sweeping finishes.
- heap->StartIncrementalMarking();
- heap->FinalizeIncrementalMarkingIfComplete("test");
-}
-
-
-HEAP_TEST(TestMemoryReducerSampleJsCalls) {
- CcTest::InitializeVM();
- v8::HandleScope scope(CcTest::isolate());
- Heap* heap = CcTest::heap();
- Isolate* isolate = CcTest::i_isolate();
- MemoryReducer* memory_reducer = heap->memory_reducer_;
- memory_reducer->SampleAndGetJsCallsPerMs(0);
- isolate->IncrementJsCallsFromApiCounter();
- isolate->IncrementJsCallsFromApiCounter();
- isolate->IncrementJsCallsFromApiCounter();
- double calls_per_ms = memory_reducer->SampleAndGetJsCallsPerMs(1);
- CheckDoubleEquals(3, calls_per_ms);
-
- calls_per_ms = memory_reducer->SampleAndGetJsCallsPerMs(2);
- CheckDoubleEquals(0, calls_per_ms);
-
- isolate->IncrementJsCallsFromApiCounter();
- isolate->IncrementJsCallsFromApiCounter();
- isolate->IncrementJsCallsFromApiCounter();
- isolate->IncrementJsCallsFromApiCounter();
- calls_per_ms = memory_reducer->SampleAndGetJsCallsPerMs(4);
- CheckDoubleEquals(2, calls_per_ms);
-}
-
-
-} // namespace internal
-} // namespace v8
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