v8/test/unittests/compiler-dispatcher/compiler-dispatcher-unittest.cc

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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/compiler-dispatcher/compiler-dispatcher.h"
#include <sstream>
#include "include/v8-platform.h"
#include "src/api.h"
#include "src/base/platform/semaphore.h"
#include "src/compiler-dispatcher/compiler-dispatcher-job.h"
#include "src/compiler-dispatcher/compiler-dispatcher-tracer.h"
#include "src/compiler.h"
#include "src/flags.h"
#include "src/handles.h"
#include "src/objects-inl.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/parsing.h"
#include "src/v8.h"
#include "test/unittests/compiler-dispatcher/compiler-dispatcher-helper.h"
#include "test/unittests/test-utils.h"
#include "testing/gtest/include/gtest/gtest.h"
// V8 is smart enough to know something was already compiled and return compiled
// code straight away. We need a unique name for each test function so that V8
// returns an empty SharedFunctionInfo.
#define _STR(x) #x
#define STR(x) _STR(x)
#define _SCRIPT(fn, a, b, c) a fn b fn c
#define SCRIPT(a, b, c) _SCRIPT("f" STR(__LINE__), a, b, c)
#define TEST_SCRIPT() \
SCRIPT("function g() { var y = 1; function ", \
"(x) { return x * y }; return ", "; } g();")
namespace v8 {
namespace internal {
class CompilerDispatcherTestFlags {
public:
static void SetFlagsForTest() {
CHECK_NULL(save_flags_);
save_flags_ = new SaveFlags();
FLAG_single_threaded = true;
FLAG_ignition = true;
FlagList::EnforceFlagImplications();
FLAG_compiler_dispatcher = true;
}
static void RestoreFlags() {
CHECK_NOT_NULL(save_flags_);
delete save_flags_;
save_flags_ = nullptr;
}
private:
static SaveFlags* save_flags_;
DISALLOW_IMPLICIT_CONSTRUCTORS(CompilerDispatcherTestFlags);
};
SaveFlags* CompilerDispatcherTestFlags::save_flags_ = nullptr;
class CompilerDispatcherTest : public TestWithContext {
public:
CompilerDispatcherTest() = default;
~CompilerDispatcherTest() override = default;
static void SetUpTestCase() {
CompilerDispatcherTestFlags::SetFlagsForTest();
TestWithContext::SetUpTestCase();
}
static void TearDownTestCase() {
TestWithContext::TearDownTestCase();
CompilerDispatcherTestFlags::RestoreFlags();
}
private:
DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherTest);
};
class CompilerDispatcherTestWithoutContext : public v8::TestWithIsolate {
public:
CompilerDispatcherTestWithoutContext() = default;
~CompilerDispatcherTestWithoutContext() override = default;
static void SetUpTestCase() {
CompilerDispatcherTestFlags::SetFlagsForTest();
TestWithContext::SetUpTestCase();
}
static void TearDownTestCase() {
TestWithContext::TearDownTestCase();
CompilerDispatcherTestFlags::RestoreFlags();
}
private:
DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherTestWithoutContext);
};
namespace {
class MockPlatform : public v8::Platform {
public:
MockPlatform() : time_(0.0), time_step_(0.0), idle_task_(nullptr), sem_(0) {}
~MockPlatform() override {
base::LockGuard<base::Mutex> lock(&mutex_);
EXPECT_TRUE(foreground_tasks_.empty());
EXPECT_TRUE(background_tasks_.empty());
EXPECT_TRUE(idle_task_ == nullptr);
}
size_t NumberOfAvailableBackgroundThreads() override { return 1; }
void CallOnBackgroundThread(Task* task,
ExpectedRuntime expected_runtime) override {
base::LockGuard<base::Mutex> lock(&mutex_);
background_tasks_.push_back(task);
}
void CallOnForegroundThread(v8::Isolate* isolate, Task* task) override {
base::LockGuard<base::Mutex> lock(&mutex_);
foreground_tasks_.push_back(task);
}
void CallDelayedOnForegroundThread(v8::Isolate* isolate, Task* task,
double delay_in_seconds) override {
UNREACHABLE();
}
void CallIdleOnForegroundThread(v8::Isolate* isolate,
IdleTask* task) override {
base::LockGuard<base::Mutex> lock(&mutex_);
ASSERT_TRUE(idle_task_ == nullptr);
idle_task_ = task;
}
bool IdleTasksEnabled(v8::Isolate* isolate) override { return true; }
double MonotonicallyIncreasingTime() override {
time_ += time_step_;
return time_;
}
void RunIdleTask(double deadline_in_seconds, double time_step) {
time_step_ = time_step;
IdleTask* task;
{
base::LockGuard<base::Mutex> lock(&mutex_);
task = idle_task_;
ASSERT_TRUE(idle_task_ != nullptr);
idle_task_ = nullptr;
}
task->Run(deadline_in_seconds);
delete task;
}
bool IdleTaskPending() {
base::LockGuard<base::Mutex> lock(&mutex_);
return idle_task_;
}
bool BackgroundTasksPending() {
base::LockGuard<base::Mutex> lock(&mutex_);
return !background_tasks_.empty();
}
bool ForegroundTasksPending() {
base::LockGuard<base::Mutex> lock(&mutex_);
return !foreground_tasks_.empty();
}
void RunBackgroundTasksAndBlock(Platform* platform) {
std::vector<Task*> tasks;
{
base::LockGuard<base::Mutex> lock(&mutex_);
tasks.swap(background_tasks_);
}
platform->CallOnBackgroundThread(new TaskWrapper(this, tasks, true),
kShortRunningTask);
sem_.Wait();
}
void RunBackgroundTasks(Platform* platform) {
std::vector<Task*> tasks;
{
base::LockGuard<base::Mutex> lock(&mutex_);
tasks.swap(background_tasks_);
}
platform->CallOnBackgroundThread(new TaskWrapper(this, tasks, false),
kShortRunningTask);
}
void RunForegroundTasks() {
std::vector<Task*> tasks;
{
base::LockGuard<base::Mutex> lock(&mutex_);
tasks.swap(foreground_tasks_);
}
for (auto& task : tasks) {
task->Run();
delete task;
}
}
void ClearBackgroundTasks() {
std::vector<Task*> tasks;
{
base::LockGuard<base::Mutex> lock(&mutex_);
tasks.swap(background_tasks_);
}
for (auto& task : tasks) {
delete task;
}
}
void ClearForegroundTasks() {
std::vector<Task*> tasks;
{
base::LockGuard<base::Mutex> lock(&mutex_);
tasks.swap(foreground_tasks_);
}
for (auto& task : tasks) {
delete task;
}
}
void ClearIdleTask() {
base::LockGuard<base::Mutex> lock(&mutex_);
ASSERT_TRUE(idle_task_ != nullptr);
delete idle_task_;
idle_task_ = nullptr;
}
private:
class TaskWrapper : public Task {
public:
TaskWrapper(MockPlatform* platform, const std::vector<Task*>& tasks,
bool signal)
: platform_(platform), tasks_(tasks), signal_(signal) {}
~TaskWrapper() = default;
void Run() override {
for (auto& task : tasks_) {
task->Run();
delete task;
}
if (signal_) platform_->sem_.Signal();
}
private:
MockPlatform* platform_;
std::vector<Task*> tasks_;
bool signal_;
DISALLOW_COPY_AND_ASSIGN(TaskWrapper);
};
double time_;
double time_step_;
// Protects all *_tasks_.
base::Mutex mutex_;
IdleTask* idle_task_;
std::vector<Task*> background_tasks_;
std::vector<Task*> foreground_tasks_;
base::Semaphore sem_;
DISALLOW_COPY_AND_ASSIGN(MockPlatform);
};
const char test_script[] = "(x) { x*x; }";
} // namespace
TEST_F(CompilerDispatcherTest, Construct) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
}
TEST_F(CompilerDispatcherTest, IsEnqueued) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
dispatcher.AbortAll(CompilerDispatcher::BlockingBehavior::kBlock);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, FinishNow) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(shared->is_compiled());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(dispatcher.FinishNow(shared));
// Finishing removes the SFI from the queue.
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, FinishAllNow) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
constexpr int num_funcs = 2;
Handle<JSFunction> f[num_funcs];
Handle<SharedFunctionInfo> shared[num_funcs];
for (int i = 0; i < num_funcs; ++i) {
std::stringstream ss;
ss << 'f' << STR(__LINE__) << '_' << i;
std::string func_name = ss.str();
std::string script("function g() { function " + func_name +
"(x) { var a = 'x'; }; return " + func_name +
"; } g();");
f[i] = Handle<JSFunction>::cast(test::RunJS(isolate(), script.c_str()));
shared[i] = Handle<SharedFunctionInfo>(f[i]->shared(), i_isolate());
ASSERT_FALSE(shared[i]->is_compiled());
ASSERT_TRUE(dispatcher.Enqueue(shared[i]));
}
dispatcher.FinishAllNow();
for (int i = 0; i < num_funcs; ++i) {
// Finishing removes the SFI from the queue.
ASSERT_FALSE(dispatcher.IsEnqueued(shared[i]));
ASSERT_TRUE(shared[i]->is_compiled());
}
platform.ClearIdleTask();
platform.ClearBackgroundTasks();
}
TEST_F(CompilerDispatcherTest, IdleTask) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
// Since time doesn't progress on the MockPlatform, this is enough idle time
// to finish compiling the function.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
}
TEST_F(CompilerDispatcherTest, IdleTaskSmallIdleTime) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
// The job should be scheduled for the main thread.
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Only grant a little idle time and have time advance beyond it in one step.
platform.RunIdleTask(2.0, 1.0);
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_TRUE(platform.IdleTaskPending());
// The job should be still scheduled for the main thread, but ready for
// parsing.
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToParse);
// Now grant a lot of idle time and freeze time.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
}
TEST_F(CompilerDispatcherTest, IdleTaskException) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, 50);
std::string func_name("f" STR(__LINE__));
std::string script("function g() { function " + func_name + "(x) { var a = ");
for (int i = 0; i < 1000; i++) {
script += "'x' + ";
}
script += " 'x'; }; return " + func_name + "; } g();";
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script.c_str()));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
// Since time doesn't progress on the MockPlatform, this is enough idle time
// to finish compiling the function.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(i_isolate()->has_pending_exception());
}
TEST_F(CompilerDispatcherTest, CompileOnBackgroundThread) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.RunBackgroundTasksAndBlock(V8::GetCurrentPlatform());
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_FALSE(platform.BackgroundTasksPending());
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kCompiled);
// Now grant a lot of idle time and freeze time.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
}
TEST_F(CompilerDispatcherTest, FinishNowWithBackgroundTask) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
// This does not block, but races with the FinishNow() call below.
platform.RunBackgroundTasks(V8::GetCurrentPlatform());
ASSERT_TRUE(dispatcher.FinishNow(shared));
// Finishing removes the SFI from the queue.
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
if (platform.IdleTaskPending()) platform.ClearIdleTask();
ASSERT_FALSE(platform.BackgroundTasksPending());
}
TEST_F(CompilerDispatcherTest, IdleTaskMultipleJobs) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script1[] = TEST_SCRIPT();
Handle<JSFunction> f1 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script1));
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
const char script2[] = TEST_SCRIPT();
Handle<JSFunction> f2 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script2));
Handle<SharedFunctionInfo> shared2(f2->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared1));
ASSERT_TRUE(dispatcher.Enqueue(shared2));
ASSERT_TRUE(platform.IdleTaskPending());
// Since time doesn't progress on the MockPlatform, this is enough idle time
// to finish compiling the function.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared1));
ASSERT_FALSE(dispatcher.IsEnqueued(shared2));
ASSERT_TRUE(shared1->is_compiled());
ASSERT_TRUE(shared2->is_compiled());
}
TEST_F(CompilerDispatcherTest, FinishNowException) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, 50);
std::string func_name("f" STR(__LINE__));
std::string script("function g() { function " + func_name + "(x) { var a = ");
for (int i = 0; i < 1000; i++) {
script += "'x' + ";
}
script += " 'x'; }; return " + func_name + "; } g();";
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script.c_str()));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_FALSE(dispatcher.FinishNow(shared));
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_TRUE(i_isolate()->has_pending_exception());
i_isolate()->clear_pending_exception();
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, AsyncAbortAllPendingBackgroundTask) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
// The background task hasn't yet started, so we can just cancel it.
dispatcher.AbortAll(CompilerDispatcher::BlockingBehavior::kDontBlock);
ASSERT_FALSE(platform.ForegroundTasksPending());
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
platform.RunBackgroundTasksAndBlock(V8::GetCurrentPlatform());
if (platform.IdleTaskPending()) platform.ClearIdleTask();
ASSERT_FALSE(platform.BackgroundTasksPending());
ASSERT_FALSE(platform.ForegroundTasksPending());
}
TEST_F(CompilerDispatcherTest, AsyncAbortAllRunningBackgroundTask) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script1[] = TEST_SCRIPT();
Handle<JSFunction> f1 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script1));
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
const char script2[] = TEST_SCRIPT();
Handle<JSFunction> f2 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script2));
Handle<SharedFunctionInfo> shared2(f2->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared1));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared1));
ASSERT_FALSE(shared1->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
// Kick off background tasks and freeze them.
dispatcher.block_for_testing_.SetValue(true);
platform.RunBackgroundTasks(V8::GetCurrentPlatform());
// Busy loop until the background task started running.
while (dispatcher.block_for_testing_.Value()) {
}
dispatcher.AbortAll(CompilerDispatcher::BlockingBehavior::kDontBlock);
ASSERT_TRUE(platform.ForegroundTasksPending());
// We can't schedule new tasks while we're aborting.
ASSERT_FALSE(dispatcher.Enqueue(shared2));
// Run the first AbortTask. Since the background job is still pending, it
// can't do anything.
platform.RunForegroundTasks();
{
base::LockGuard<base::Mutex> lock(&dispatcher.mutex_);
ASSERT_TRUE(dispatcher.abort_);
}
// Release background task.
dispatcher.semaphore_for_testing_.Signal();
// Busy loop until the background task scheduled another AbortTask task.
while (!platform.ForegroundTasksPending()) {
}
platform.RunForegroundTasks();
ASSERT_TRUE(dispatcher.jobs_.empty());
{
base::LockGuard<base::Mutex> lock(&dispatcher.mutex_);
ASSERT_FALSE(dispatcher.abort_);
}
ASSERT_TRUE(platform.IdleTaskPending());
platform.RunIdleTask(5.0, 1.0);
ASSERT_FALSE(platform.BackgroundTasksPending());
ASSERT_FALSE(platform.ForegroundTasksPending());
// Now it's possible to enqueue new functions again.
ASSERT_TRUE(dispatcher.Enqueue(shared2));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_FALSE(platform.BackgroundTasksPending());
ASSERT_FALSE(platform.ForegroundTasksPending());
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, FinishNowDuringAbortAll) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 1u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
// Kick off background tasks and freeze them.
dispatcher.block_for_testing_.SetValue(true);
platform.RunBackgroundTasks(V8::GetCurrentPlatform());
// Busy loop until the background task started running.
while (dispatcher.block_for_testing_.Value()) {
}
dispatcher.AbortAll(CompilerDispatcher::BlockingBehavior::kDontBlock);
ASSERT_TRUE(platform.ForegroundTasksPending());
// Run the first AbortTask. Since the background job is still pending, it
// can't do anything.
platform.RunForegroundTasks();
{
base::LockGuard<base::Mutex> lock(&dispatcher.mutex_);
ASSERT_TRUE(dispatcher.abort_);
}
// While the background thread holds on to a job, it is still enqueud.
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
// Release background task.
dispatcher.semaphore_for_testing_.Signal();
// Force the compilation to finish, even while aborting.
ASSERT_TRUE(dispatcher.FinishNow(shared));
ASSERT_TRUE(dispatcher.jobs_.empty());
// Busy wait for the background task to finish.
for (;;) {
base::LockGuard<base::Mutex> lock(&dispatcher.mutex_);
if (dispatcher.num_background_tasks_ == 0) {
break;
}
}
ASSERT_TRUE(platform.ForegroundTasksPending());
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_FALSE(platform.BackgroundTasksPending());
platform.RunForegroundTasks();
{
base::LockGuard<base::Mutex> lock(&dispatcher.mutex_);
ASSERT_FALSE(dispatcher.abort_);
}
platform.ClearForegroundTasks();
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, MemoryPressure) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
// Can't enqueue tasks under memory pressure.
dispatcher.MemoryPressureNotification(v8::MemoryPressureLevel::kCritical,
true);
ASSERT_FALSE(dispatcher.Enqueue(shared));
dispatcher.MemoryPressureNotification(v8::MemoryPressureLevel::kNone, true);
ASSERT_TRUE(dispatcher.Enqueue(shared));
// Memory pressure cancels current jobs.
dispatcher.MemoryPressureNotification(v8::MemoryPressureLevel::kCritical,
true);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
platform.ClearIdleTask();
}
namespace {
class PressureNotificationTask : public CancelableTask {
public:
PressureNotificationTask(Isolate* isolate, CompilerDispatcher* dispatcher,
base::Semaphore* sem)
: CancelableTask(isolate), dispatcher_(dispatcher), sem_(sem) {}
~PressureNotificationTask() override {}
void RunInternal() override {
dispatcher_->MemoryPressureNotification(v8::MemoryPressureLevel::kCritical,
false);
sem_->Signal();
}
private:
CompilerDispatcher* dispatcher_;
base::Semaphore* sem_;
DISALLOW_COPY_AND_ASSIGN(PressureNotificationTask);
};
} // namespace
TEST_F(CompilerDispatcherTest, MemoryPressureFromBackground) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_TRUE(dispatcher.Enqueue(shared));
base::Semaphore sem(0);
V8::GetCurrentPlatform()->CallOnBackgroundThread(
new PressureNotificationTask(i_isolate(), &dispatcher, &sem),
v8::Platform::kShortRunningTask);
sem.Wait();
// A memory pressure task is pending, and running it will cancel the job.
ASSERT_TRUE(platform.ForegroundTasksPending());
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
platform.RunForegroundTasks();
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_FALSE(shared->is_compiled());
// Since the AbortAll() call is made from a task, AbortAll thinks that there
// is at least one task running, and fires of an AbortTask to be safe.
ASSERT_TRUE(platform.ForegroundTasksPending());
platform.RunForegroundTasks();
ASSERT_FALSE(platform.ForegroundTasksPending());
platform.ClearIdleTask();
}
TEST_F(CompilerDispatcherTest, EnqueueJob) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
std::unique_ptr<CompilerDispatcherJob> job(
new CompilerDispatcherJob(i_isolate(), dispatcher.tracer_.get(), shared,
dispatcher.max_stack_size_));
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
dispatcher.Enqueue(std::move(job));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
ASSERT_FALSE(platform.BackgroundTasksPending());
}
TEST_F(CompilerDispatcherTest, EnqueueWithoutSFI) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
ASSERT_TRUE(dispatcher.jobs_.empty());
ASSERT_TRUE(dispatcher.shared_to_job_id_.empty());
std::unique_ptr<test::FinishCallback> callback(new test::FinishCallback());
std::unique_ptr<test::ScriptResource> resource(
new test::ScriptResource(test_script, strlen(test_script)));
ASSERT_TRUE(callback->result() == nullptr);
ASSERT_TRUE(dispatcher.Enqueue(CreateSource(i_isolate(), resource.get()), 0,
static_cast<int>(resource->length()), SLOPPY,
1, false, false, false, false, 0,
callback.get(), nullptr));
ASSERT_TRUE(!dispatcher.jobs_.empty());
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToParse);
ASSERT_TRUE(dispatcher.shared_to_job_id_.empty());
ASSERT_TRUE(callback->result() == nullptr);
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.ClearBackgroundTasks();
}
TEST_F(CompilerDispatcherTest, EnqueueAndStep) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), script));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.EnqueueAndStep(shared));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToParse);
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.ClearBackgroundTasks();
}
TEST_F(CompilerDispatcherTest, EnqueueParsed) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char source[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), source));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
Handle<Script> script(Script::cast(shared->script()), i_isolate());
Reland of land: [Parse] ParseInfo owns the parsing Zone. (patchset #1 id:1 of https://codereview.chromium.org/2683733002/ ) Reason for revert: False alarm, bot hiccup Original issue's description: > Revert of Reland: [Parse] ParseInfo owns the parsing Zone. (patchset #7 id:140001 of https://codereview.chromium.org/2632123006/ ) > > Reason for revert: > Speculative revert because of revert needed for https://codereview.chromium.org/2632123006 > > Original issue's description: > > Reland: [Parse] ParseInfo owns the parsing Zone. > > > > Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is > > in preperation for enabling background compilation jobs for inner functions > > share the AST in the outer-function's parse zone memory (read-only), with the > > and zone being released when all compilation jobs have completed. > > > > BUG=v8:5203,v8:5215 > > > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Original-Commit-Position: refs/heads/master@{#42993} > > Committed: https://chromium.googlesource.com/v8/v8/+/14fb337200d5da09c77438ddd40bea935b1dc823 > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Commit-Position: refs/heads/master@{#42996} > > Committed: https://chromium.googlesource.com/v8/v8/+/9e7d5a6065470ca03411d4c8dbc61d1be5c3f84a > > TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org > # Skipping CQ checks because original CL landed less than 1 days ago. > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=v8:5203,v8:5215 > > Review-Url: https://codereview.chromium.org/2683733002 > Cr-Commit-Position: refs/heads/master@{#43008} > Committed: https://chromium.googlesource.com/v8/v8/+/9fe08ec067051c5b46e694568bd01c6dba44cc4d TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=v8:5203,v8:5215 Review-Url: https://codereview.chromium.org/2679303003 Cr-Commit-Position: refs/heads/master@{#43015}
2017-02-07 20:46:47 +00:00
ParseInfo parse_info(shared);
ASSERT_TRUE(Compiler::ParseAndAnalyze(&parse_info, i_isolate()));
std::shared_ptr<DeferredHandles> handles;
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.Enqueue(script, shared, parse_info.literal(),
parse_info.zone_shared(), handles, handles));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kAnalyzed);
ASSERT_TRUE(platform.IdleTaskPending());
platform.ClearIdleTask();
ASSERT_FALSE(platform.BackgroundTasksPending());
}
TEST_F(CompilerDispatcherTest, EnqueueAndStepParsed) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char source[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), source));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
Handle<Script> script(Script::cast(shared->script()), i_isolate());
Reland of land: [Parse] ParseInfo owns the parsing Zone. (patchset #1 id:1 of https://codereview.chromium.org/2683733002/ ) Reason for revert: False alarm, bot hiccup Original issue's description: > Revert of Reland: [Parse] ParseInfo owns the parsing Zone. (patchset #7 id:140001 of https://codereview.chromium.org/2632123006/ ) > > Reason for revert: > Speculative revert because of revert needed for https://codereview.chromium.org/2632123006 > > Original issue's description: > > Reland: [Parse] ParseInfo owns the parsing Zone. > > > > Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is > > in preperation for enabling background compilation jobs for inner functions > > share the AST in the outer-function's parse zone memory (read-only), with the > > and zone being released when all compilation jobs have completed. > > > > BUG=v8:5203,v8:5215 > > > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Original-Commit-Position: refs/heads/master@{#42993} > > Committed: https://chromium.googlesource.com/v8/v8/+/14fb337200d5da09c77438ddd40bea935b1dc823 > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Commit-Position: refs/heads/master@{#42996} > > Committed: https://chromium.googlesource.com/v8/v8/+/9e7d5a6065470ca03411d4c8dbc61d1be5c3f84a > > TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org > # Skipping CQ checks because original CL landed less than 1 days ago. > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=v8:5203,v8:5215 > > Review-Url: https://codereview.chromium.org/2683733002 > Cr-Commit-Position: refs/heads/master@{#43008} > Committed: https://chromium.googlesource.com/v8/v8/+/9fe08ec067051c5b46e694568bd01c6dba44cc4d TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=v8:5203,v8:5215 Review-Url: https://codereview.chromium.org/2679303003 Cr-Commit-Position: refs/heads/master@{#43015}
2017-02-07 20:46:47 +00:00
ParseInfo parse_info(shared);
ASSERT_TRUE(Compiler::ParseAndAnalyze(&parse_info, i_isolate()));
std::shared_ptr<DeferredHandles> handles;
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.EnqueueAndStep(script, shared, parse_info.literal(),
parse_info.zone_shared(), handles,
handles));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.ClearIdleTask();
platform.ClearBackgroundTasks();
}
TEST_F(CompilerDispatcherTest, CompileParsedOutOfScope) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char source[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), source));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
Handle<Script> script(Script::cast(shared->script()), i_isolate());
{
HandleScope scope(i_isolate()); // Create handles scope for parsing.
ASSERT_FALSE(shared->is_compiled());
ParseInfo parse_info(shared);
ASSERT_TRUE(parsing::ParseAny(&parse_info, i_isolate()));
DeferredHandleScope handles_scope(i_isolate());
{ ASSERT_TRUE(Compiler::Analyze(&parse_info, i_isolate())); }
std::shared_ptr<DeferredHandles> compilation_handles(
handles_scope.Detach());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(
script, shared, parse_info.literal(), parse_info.zone_shared(),
parse_info.deferred_handles(), compilation_handles));
ASSERT_TRUE(platform.IdleTaskPending());
}
// Exit the handles scope and destroy ParseInfo before running the idle task.
// Since time doesn't progress on the MockPlatform, this is enough idle time
// to finish compiling the function.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
}
namespace {
const char kExtensionSource[] = "native function Dummy();";
class MockNativeFunctionExtension : public Extension {
public:
MockNativeFunctionExtension()
: Extension("mock-extension", kExtensionSource), function_(&Dummy) {}
virtual v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate(
v8::Isolate* isolate, v8::Local<v8::String> name) {
return v8::FunctionTemplate::New(isolate, function_);
}
static void Dummy(const v8::FunctionCallbackInfo<v8::Value>& args) { return; }
private:
v8::FunctionCallback function_;
DISALLOW_COPY_AND_ASSIGN(MockNativeFunctionExtension);
};
} // namespace
TEST_F(CompilerDispatcherTestWithoutContext, CompileExtensionWithoutContext) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
Local<v8::Context> context = v8::Context::New(isolate());
MockNativeFunctionExtension extension;
Handle<String> script_str =
i_isolate()
->factory()
->NewStringFromUtf8(CStrVector(kExtensionSource))
.ToHandleChecked();
Handle<Script> script = i_isolate()->factory()->NewScript(script_str);
script->set_type(Script::TYPE_EXTENSION);
Handle<SharedFunctionInfo> shared;
{
v8::Context::Scope scope(context);
ParseInfo parse_info(script);
parse_info.set_extension(&extension);
ASSERT_TRUE(parsing::ParseAny(&parse_info, i_isolate()));
Handle<FixedArray> shared_infos_array(i_isolate()->factory()->NewFixedArray(
parse_info.max_function_literal_id() + 1));
parse_info.script()->set_shared_function_infos(*shared_infos_array);
DeferredHandleScope handles_scope(i_isolate());
{ ASSERT_TRUE(Compiler::Analyze(&parse_info, i_isolate())); }
std::shared_ptr<DeferredHandles> compilation_handles(
handles_scope.Detach());
shared = i_isolate()->factory()->NewSharedFunctionInfoForLiteral(
parse_info.literal(), script);
parse_info.set_shared_info(shared);
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(
script, shared, parse_info.literal(), parse_info.zone_shared(),
parse_info.deferred_handles(), compilation_handles));
ASSERT_TRUE(platform.IdleTaskPending());
}
// Exit the context scope before running the idle task.
// Since time doesn't progress on the MockPlatform, this is enough idle time
// to finish compiling the function.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(shared->is_compiled());
}
TEST_F(CompilerDispatcherTest, CompileLazyFinishesDispatcherJob) {
// Use the real dispatcher so that CompileLazy checks the same one for
// enqueued functions.
CompilerDispatcher* dispatcher = i_isolate()->compiler_dispatcher();
const char source[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), source));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
ASSERT_FALSE(shared->is_compiled());
ASSERT_FALSE(dispatcher->IsEnqueued(shared));
ASSERT_TRUE(dispatcher->Enqueue(shared));
ASSERT_TRUE(dispatcher->IsEnqueued(shared));
// Now force the function to run and ensure CompileLazy finished and dequeues
// it from the dispatcher.
test::RunJS(isolate(), "g()();");
ASSERT_TRUE(shared->is_compiled());
ASSERT_FALSE(dispatcher->IsEnqueued(shared));
}
TEST_F(CompilerDispatcherTest, CompileLazy2FinishesDispatcherJob) {
// Use the real dispatcher so that CompileLazy checks the same one for
// enqueued functions.
CompilerDispatcher* dispatcher = i_isolate()->compiler_dispatcher();
const char source2[] = "function lazy2() { return 42; }; lazy2;";
Handle<JSFunction> lazy2 =
Handle<JSFunction>::cast(test::RunJS(isolate(), source2));
Handle<SharedFunctionInfo> shared2(lazy2->shared(), i_isolate());
ASSERT_FALSE(shared2->is_compiled());
const char source1[] = "function lazy1() { return lazy2(); }; lazy1;";
Handle<JSFunction> lazy1 =
Handle<JSFunction>::cast(test::RunJS(isolate(), source1));
Handle<SharedFunctionInfo> shared1(lazy1->shared(), i_isolate());
ASSERT_FALSE(shared1->is_compiled());
ASSERT_TRUE(dispatcher->Enqueue(shared1));
ASSERT_TRUE(dispatcher->Enqueue(shared2));
test::RunJS(isolate(), "lazy1();");
ASSERT_TRUE(shared1->is_compiled());
ASSERT_TRUE(shared2->is_compiled());
ASSERT_FALSE(dispatcher->IsEnqueued(shared1));
ASSERT_FALSE(dispatcher->IsEnqueued(shared2));
}
TEST_F(CompilerDispatcherTest, EnqueueAndStepTwice) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char source[] = TEST_SCRIPT();
Handle<JSFunction> f =
Handle<JSFunction>::cast(test::RunJS(isolate(), source));
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
Handle<Script> script(Script::cast(shared->script()), i_isolate());
ParseInfo parse_info(shared);
ASSERT_TRUE(Compiler::ParseAndAnalyze(&parse_info, i_isolate()));
std::shared_ptr<DeferredHandles> handles;
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.EnqueueAndStep(script, shared, parse_info.literal(),
parse_info.zone_shared(), handles,
handles));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
// EnqueueAndStep of the same function again (either already parsed or for
// compile and parse) shouldn't step the job.
ASSERT_TRUE(dispatcher.EnqueueAndStep(script, shared, parse_info.literal(),
parse_info.zone_shared(), handles,
handles));
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.EnqueueAndStep(shared));
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.ClearIdleTask();
platform.ClearBackgroundTasks();
}
TEST_F(CompilerDispatcherTest, CompileMultipleOnBackgroundThread) {
MockPlatform platform;
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
const char script1[] = TEST_SCRIPT();
Handle<JSFunction> f1 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script1));
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
const char script2[] = TEST_SCRIPT();
Handle<JSFunction> f2 =
Handle<JSFunction>::cast(test::RunJS(isolate(), script2));
Handle<SharedFunctionInfo> shared2(f2->shared(), i_isolate());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(dispatcher.Enqueue(shared1));
ASSERT_TRUE(dispatcher.Enqueue(shared2));
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_EQ(dispatcher.jobs_.size(), 2u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kInitial);
ASSERT_TRUE((++dispatcher.jobs_.begin())->second->status() ==
CompileJobStatus::kInitial);
// Make compiling super expensive, and advance job as much as possible on the
// foreground thread.
dispatcher.tracer_->RecordCompile(50000.0, 1);
platform.RunIdleTask(10.0, 0.0);
ASSERT_EQ(dispatcher.jobs_.size(), 2u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE((++dispatcher.jobs_.begin())->second->status() ==
CompileJobStatus::kReadyToCompile);
ASSERT_TRUE(dispatcher.IsEnqueued(shared1));
ASSERT_TRUE(dispatcher.IsEnqueued(shared2));
ASSERT_FALSE(shared1->is_compiled());
ASSERT_FALSE(shared2->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
ASSERT_TRUE(platform.BackgroundTasksPending());
platform.RunBackgroundTasksAndBlock(V8::GetCurrentPlatform());
ASSERT_TRUE(platform.IdleTaskPending());
ASSERT_FALSE(platform.BackgroundTasksPending());
ASSERT_EQ(dispatcher.jobs_.size(), 2u);
ASSERT_TRUE(dispatcher.jobs_.begin()->second->status() ==
CompileJobStatus::kCompiled);
ASSERT_TRUE((++dispatcher.jobs_.begin())->second->status() ==
CompileJobStatus::kCompiled);
// Now grant a lot of idle time and freeze time.
platform.RunIdleTask(1000.0, 0.0);
ASSERT_FALSE(dispatcher.IsEnqueued(shared1));
ASSERT_FALSE(dispatcher.IsEnqueued(shared2));
ASSERT_TRUE(shared1->is_compiled());
ASSERT_TRUE(shared2->is_compiled());
ASSERT_FALSE(platform.IdleTaskPending());
}
} // namespace internal
} // namespace v8