3c9549a337
Fixing clang-tidy warning. Bug: v8:8015 Change-Id: I41b3d7c41ee9f8ff12f70feddcf38f2c9efc5049 Reviewed-on: https://chromium-review.googlesource.com/1224056 Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Florian Sattler <sattlerf@google.com> Cr-Commit-Position: refs/heads/master@{#55917}
1055 lines
34 KiB
C++
1055 lines
34 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/compiler-dispatcher/compiler-dispatcher.h"
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#include <sstream>
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#include "include/v8-platform.h"
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#include "src/api-inl.h"
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#include "src/ast/ast-value-factory.h"
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#include "src/base/platform/semaphore.h"
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#include "src/base/template-utils.h"
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#include "src/compiler-dispatcher/compiler-dispatcher-job.h"
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#include "src/compiler-dispatcher/compiler-dispatcher-tracer.h"
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#include "src/compiler-dispatcher/unoptimized-compile-job.h"
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#include "src/compiler.h"
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#include "src/flags.h"
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#include "src/handles.h"
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#include "src/objects-inl.h"
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#include "src/parsing/parse-info.h"
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#include "src/parsing/parsing.h"
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#include "src/v8.h"
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#include "test/unittests/test-helpers.h"
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#include "test/unittests/test-utils.h"
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#include "testing/gtest/include/gtest/gtest.h"
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// V8 is smart enough to know something was already compiled and return compiled
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// code straight away. We need a unique name for each test function so that V8
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// returns an empty SharedFunctionInfo.
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#define _STR(x) #x
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#define STR(x) _STR(x)
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#define _SCRIPT(fn, a, b, c) a fn b fn c
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#define SCRIPT(a, b, c) _SCRIPT("f" STR(__LINE__), a, b, c)
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#define TEST_SCRIPT() \
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"function f" STR(__LINE__) "(x, y) { return x * y }; f" STR(__LINE__) ";"
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namespace v8 {
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namespace internal {
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class CompilerDispatcherTestFlags {
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public:
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static void SetFlagsForTest() {
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CHECK_NULL(save_flags_);
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save_flags_ = new SaveFlags();
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FLAG_single_threaded = true;
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FlagList::EnforceFlagImplications();
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FLAG_compiler_dispatcher = true;
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}
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static void RestoreFlags() {
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CHECK_NOT_NULL(save_flags_);
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delete save_flags_;
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save_flags_ = nullptr;
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}
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private:
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static SaveFlags* save_flags_;
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DISALLOW_IMPLICIT_CONSTRUCTORS(CompilerDispatcherTestFlags);
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};
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SaveFlags* CompilerDispatcherTestFlags::save_flags_ = nullptr;
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class CompilerDispatcherTest : public TestWithNativeContext {
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public:
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CompilerDispatcherTest() = default;
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~CompilerDispatcherTest() override = default;
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static void SetUpTestCase() {
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CompilerDispatcherTestFlags::SetFlagsForTest();
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TestWithNativeContext ::SetUpTestCase();
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}
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static void TearDownTestCase() {
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TestWithNativeContext ::TearDownTestCase();
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CompilerDispatcherTestFlags::RestoreFlags();
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}
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private:
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DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherTest);
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};
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namespace {
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class MockPlatform : public v8::Platform {
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public:
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MockPlatform()
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: time_(0.0),
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time_step_(0.0),
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idle_task_(nullptr),
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sem_(0),
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tracing_controller_(V8::GetCurrentPlatform()->GetTracingController()) {}
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~MockPlatform() override {
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base::LockGuard<base::Mutex> lock(&mutex_);
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EXPECT_TRUE(foreground_tasks_.empty());
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EXPECT_TRUE(worker_tasks_.empty());
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EXPECT_TRUE(idle_task_ == nullptr);
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}
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int NumberOfWorkerThreads() override { return 1; }
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std::shared_ptr<TaskRunner> GetForegroundTaskRunner(
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v8::Isolate* isolate) override {
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return std::make_shared<MockForegroundTaskRunner>(this);
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}
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void CallOnWorkerThread(std::unique_ptr<Task> task) override {
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base::LockGuard<base::Mutex> lock(&mutex_);
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worker_tasks_.push_back(std::move(task));
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}
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void CallDelayedOnWorkerThread(std::unique_ptr<Task> task,
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double delay_in_seconds) override {
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UNREACHABLE();
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}
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void CallOnForegroundThread(v8::Isolate* isolate, Task* task) override {
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base::LockGuard<base::Mutex> lock(&mutex_);
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foreground_tasks_.push_back(std::unique_ptr<Task>(task));
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}
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void CallDelayedOnForegroundThread(v8::Isolate* isolate, Task* task,
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double delay_in_seconds) override {
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UNREACHABLE();
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}
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void CallIdleOnForegroundThread(v8::Isolate* isolate,
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IdleTask* task) override {
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base::LockGuard<base::Mutex> lock(&mutex_);
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ASSERT_TRUE(idle_task_ == nullptr);
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idle_task_ = task;
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}
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bool IdleTasksEnabled(v8::Isolate* isolate) override { return true; }
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double MonotonicallyIncreasingTime() override {
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time_ += time_step_;
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return time_;
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}
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double CurrentClockTimeMillis() override {
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return time_ * base::Time::kMillisecondsPerSecond;
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}
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v8::TracingController* GetTracingController() override {
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return tracing_controller_;
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}
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void RunIdleTask(double deadline_in_seconds, double time_step) {
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time_step_ = time_step;
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IdleTask* task;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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task = idle_task_;
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ASSERT_TRUE(idle_task_ != nullptr);
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idle_task_ = nullptr;
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}
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task->Run(deadline_in_seconds);
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delete task;
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}
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bool IdleTaskPending() {
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base::LockGuard<base::Mutex> lock(&mutex_);
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return idle_task_;
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}
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bool WorkerTasksPending() {
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base::LockGuard<base::Mutex> lock(&mutex_);
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return !worker_tasks_.empty();
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}
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bool ForegroundTasksPending() {
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base::LockGuard<base::Mutex> lock(&mutex_);
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return !foreground_tasks_.empty();
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}
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void RunWorkerTasksAndBlock(Platform* platform) {
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std::vector<std::unique_ptr<Task>> tasks;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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tasks.swap(worker_tasks_);
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}
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platform->CallOnWorkerThread(
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base::make_unique<TaskWrapper>(this, std::move(tasks), true));
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sem_.Wait();
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}
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void RunWorkerTasks(Platform* platform) {
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std::vector<std::unique_ptr<Task>> tasks;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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tasks.swap(worker_tasks_);
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}
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platform->CallOnWorkerThread(
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base::make_unique<TaskWrapper>(this, std::move(tasks), false));
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}
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void RunForegroundTasks() {
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std::vector<std::unique_ptr<Task>> tasks;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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tasks.swap(foreground_tasks_);
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}
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for (auto& task : tasks) {
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task->Run();
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// Reset |task| before running the next one.
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task.reset();
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}
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}
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void ClearWorkerTasks() {
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std::vector<std::unique_ptr<Task>> tasks;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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tasks.swap(worker_tasks_);
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}
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}
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void ClearForegroundTasks() {
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std::vector<std::unique_ptr<Task>> tasks;
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{
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base::LockGuard<base::Mutex> lock(&mutex_);
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tasks.swap(foreground_tasks_);
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}
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}
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void ClearIdleTask() {
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base::LockGuard<base::Mutex> lock(&mutex_);
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ASSERT_TRUE(idle_task_ != nullptr);
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delete idle_task_;
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idle_task_ = nullptr;
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}
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private:
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class TaskWrapper : public Task {
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public:
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TaskWrapper(MockPlatform* platform,
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std::vector<std::unique_ptr<Task>> tasks, bool signal)
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: platform_(platform), tasks_(std::move(tasks)), signal_(signal) {}
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~TaskWrapper() = default;
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void Run() override {
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for (auto& task : tasks_) {
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task->Run();
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// Reset |task| before running the next one.
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task.reset();
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}
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if (signal_) platform_->sem_.Signal();
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}
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private:
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MockPlatform* platform_;
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std::vector<std::unique_ptr<Task>> tasks_;
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bool signal_;
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DISALLOW_COPY_AND_ASSIGN(TaskWrapper);
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};
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class MockForegroundTaskRunner final : public TaskRunner {
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public:
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explicit MockForegroundTaskRunner(MockPlatform* platform)
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: platform_(platform) {}
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void PostTask(std::unique_ptr<v8::Task> task) override {
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base::LockGuard<base::Mutex> lock(&platform_->mutex_);
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platform_->foreground_tasks_.push_back(std::move(task));
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}
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void PostDelayedTask(std::unique_ptr<Task> task,
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double delay_in_seconds) override {
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UNREACHABLE();
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};
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void PostIdleTask(std::unique_ptr<IdleTask> task) override {
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DCHECK(IdleTasksEnabled());
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base::LockGuard<base::Mutex> lock(&platform_->mutex_);
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ASSERT_TRUE(platform_->idle_task_ == nullptr);
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platform_->idle_task_ = task.release();
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}
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bool IdleTasksEnabled() override { return true; };
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private:
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MockPlatform* platform_;
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};
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double time_;
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double time_step_;
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// Protects all *_tasks_.
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base::Mutex mutex_;
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IdleTask* idle_task_;
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std::vector<std::unique_ptr<Task>> worker_tasks_;
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std::vector<std::unique_ptr<Task>> foreground_tasks_;
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base::Semaphore sem_;
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v8::TracingController* tracing_controller_;
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DISALLOW_COPY_AND_ASSIGN(MockPlatform);
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};
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} // namespace
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TEST_F(CompilerDispatcherTest, Construct) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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}
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TEST_F(CompilerDispatcherTest, IsEnqueued) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
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Handle<JSFunction> f = RunJS<JSFunction>(script);
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(dispatcher.IsEnqueued(shared));
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dispatcher.AbortAll(BlockingBehavior::kBlock);
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(platform.IdleTaskPending());
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platform.ClearIdleTask();
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}
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TEST_F(CompilerDispatcherTest, FinishNow) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
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Handle<JSFunction> f = RunJS<JSFunction>(script);
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(shared->is_compiled());
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(dispatcher.FinishNow(shared));
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// Finishing removes the SFI from the queue.
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(shared->is_compiled());
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ASSERT_TRUE(platform.IdleTaskPending());
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platform.ClearIdleTask();
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}
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TEST_F(CompilerDispatcherTest, FinishAllNow) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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constexpr int num_funcs = 2;
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Handle<JSFunction> f[num_funcs];
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Handle<SharedFunctionInfo> shared[num_funcs];
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for (int i = 0; i < num_funcs; ++i) {
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std::stringstream ss;
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ss << 'f' << STR(__LINE__) << '_' << i;
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std::string func_name = ss.str();
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std::string script("function f" + func_name + "(x, y) { return x * y }; f" +
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func_name + ";");
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f[i] = RunJS<JSFunction>(script.c_str());
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shared[i] = Handle<SharedFunctionInfo>(f[i]->shared(), i_isolate());
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ASSERT_FALSE(shared[i]->is_compiled());
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ASSERT_TRUE(dispatcher.Enqueue(shared[i]));
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}
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dispatcher.FinishAllNow();
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for (int i = 0; i < num_funcs; ++i) {
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// Finishing removes the SFI from the queue.
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ASSERT_FALSE(dispatcher.IsEnqueued(shared[i]));
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ASSERT_TRUE(shared[i]->is_compiled());
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}
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platform.ClearIdleTask();
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platform.ClearWorkerTasks();
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}
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TEST_F(CompilerDispatcherTest, IdleTask) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
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Handle<JSFunction> f = RunJS<JSFunction>(script);
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(platform.IdleTaskPending());
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(platform.IdleTaskPending());
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// Since time doesn't progress on the MockPlatform, this is enough idle time
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// to finish compiling the function.
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platform.RunIdleTask(1000.0, 0.0);
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(shared->is_compiled());
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}
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TEST_F(CompilerDispatcherTest, IdleTaskSmallIdleTime) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
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Handle<JSFunction> f = RunJS<JSFunction>(script);
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(platform.IdleTaskPending());
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(platform.IdleTaskPending());
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// The job should be scheduled for the main thread.
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ASSERT_EQ(dispatcher.jobs_.size(), 1u);
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ASSERT_EQ(UnoptimizedCompileJob::Status::kInitial,
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dispatcher.jobs_.begin()->second->status());
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// Only grant a little idle time and have time advance beyond it in one step.
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platform.RunIdleTask(2.0, 1.0);
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ASSERT_TRUE(dispatcher.IsEnqueued(shared));
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ASSERT_FALSE(shared->is_compiled());
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ASSERT_TRUE(platform.IdleTaskPending());
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// The job should be still scheduled for the main thread, but ready for
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// parsing.
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ASSERT_EQ(dispatcher.jobs_.size(), 1u);
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ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
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dispatcher.jobs_.begin()->second->status());
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// Now grant a lot of idle time and freeze time.
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platform.RunIdleTask(1000.0, 0.0);
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(shared->is_compiled());
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ASSERT_FALSE(platform.IdleTaskPending());
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}
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TEST_F(CompilerDispatcherTest, IdleTaskException) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, 50);
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std::string func_name("f" STR(__LINE__));
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std::string script("function " + func_name + "(x) { var a = ");
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for (int i = 0; i < 500; i++) {
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// Alternate + and - to avoid n-ary operation nodes.
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script += "'x' + 'x' - ";
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}
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script += " 'x'; }; " + func_name + ";";
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Handle<JSFunction> f = RunJS<JSFunction>(script.c_str());
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(platform.IdleTaskPending());
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(platform.IdleTaskPending());
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// Since time doesn't progress on the MockPlatform, this is enough idle time
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// to finish compiling the function.
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platform.RunIdleTask(1000.0, 0.0);
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_FALSE(shared->is_compiled());
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ASSERT_FALSE(i_isolate()->has_pending_exception());
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}
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TEST_F(CompilerDispatcherTest, CompileOnBackgroundThread) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
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Handle<JSFunction> f = RunJS<JSFunction>(script);
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Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
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ASSERT_FALSE(platform.IdleTaskPending());
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ASSERT_TRUE(dispatcher.Enqueue(shared));
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ASSERT_TRUE(platform.IdleTaskPending());
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ASSERT_EQ(dispatcher.jobs_.size(), 1u);
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ASSERT_EQ(UnoptimizedCompileJob::Status::kInitial,
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dispatcher.jobs_.begin()->second->status());
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// Make compiling super expensive, and advance job as much as possible on the
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// foreground thread.
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dispatcher.tracer_->RecordCompile(50000.0, 1);
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platform.RunIdleTask(10.0, 0.0);
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ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
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dispatcher.jobs_.begin()->second->status());
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ASSERT_TRUE(dispatcher.IsEnqueued(shared));
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ASSERT_FALSE(shared->is_compiled());
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ASSERT_FALSE(platform.IdleTaskPending());
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ASSERT_TRUE(platform.WorkerTasksPending());
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platform.RunWorkerTasksAndBlock(V8::GetCurrentPlatform());
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ASSERT_TRUE(platform.IdleTaskPending());
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ASSERT_FALSE(platform.WorkerTasksPending());
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ASSERT_EQ(UnoptimizedCompileJob::Status::kCompiled,
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dispatcher.jobs_.begin()->second->status());
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// Now grant a lot of idle time and freeze time.
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platform.RunIdleTask(1000.0, 0.0);
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ASSERT_FALSE(dispatcher.IsEnqueued(shared));
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ASSERT_TRUE(shared->is_compiled());
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ASSERT_FALSE(platform.IdleTaskPending());
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}
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TEST_F(CompilerDispatcherTest, FinishNowWithWorkerTask) {
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MockPlatform platform;
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CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
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const char script[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f = RunJS<JSFunction>(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_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
// 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(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_FALSE(shared->is_compiled());
|
|
ASSERT_FALSE(platform.IdleTaskPending());
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
|
|
// This does not block, but races with the FinishNow() call below.
|
|
platform.RunWorkerTasks(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.WorkerTasksPending());
|
|
}
|
|
|
|
TEST_F(CompilerDispatcherTest, IdleTaskMultipleJobs) {
|
|
MockPlatform platform;
|
|
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
|
|
|
|
const char script1[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f1 = RunJS<JSFunction>(script1);
|
|
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
|
|
|
|
const char script2[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f2 = RunJS<JSFunction>(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 " + func_name + "(x) { var a = ");
|
|
for (int i = 0; i < 500; i++) {
|
|
// Alternate + and - to avoid n-ary operation nodes.
|
|
script += "'x' + 'x' - ";
|
|
}
|
|
script += " 'x'; }; " + func_name + ";";
|
|
Handle<JSFunction> f = RunJS<JSFunction>(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, AsyncAbortAllPendingWorkerTask) {
|
|
MockPlatform platform;
|
|
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
|
|
|
|
const char script[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f = RunJS<JSFunction>(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_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
// 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(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_FALSE(shared->is_compiled());
|
|
ASSERT_FALSE(platform.IdleTaskPending());
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
|
|
// The background task hasn't yet started, so we can just cancel it.
|
|
dispatcher.AbortAll(BlockingBehavior::kDontBlock);
|
|
ASSERT_FALSE(platform.ForegroundTasksPending());
|
|
|
|
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_FALSE(shared->is_compiled());
|
|
|
|
platform.RunWorkerTasksAndBlock(V8::GetCurrentPlatform());
|
|
|
|
if (platform.IdleTaskPending()) platform.ClearIdleTask();
|
|
ASSERT_FALSE(platform.WorkerTasksPending());
|
|
ASSERT_FALSE(platform.ForegroundTasksPending());
|
|
}
|
|
|
|
TEST_F(CompilerDispatcherTest, AsyncAbortAllRunningWorkerTask) {
|
|
MockPlatform platform;
|
|
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
|
|
|
|
const char script1[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f1 = RunJS<JSFunction>(script1);
|
|
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
|
|
|
|
const char script2[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f2 = RunJS<JSFunction>(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_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
// 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(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared1));
|
|
ASSERT_FALSE(shared1->is_compiled());
|
|
ASSERT_FALSE(platform.IdleTaskPending());
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
|
|
// Kick off background tasks and freeze them.
|
|
dispatcher.block_for_testing_.SetValue(true);
|
|
platform.RunWorkerTasks(V8::GetCurrentPlatform());
|
|
|
|
// Busy loop until the background task started running.
|
|
while (dispatcher.block_for_testing_.Value()) {
|
|
}
|
|
dispatcher.AbortAll(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.WorkerTasksPending());
|
|
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.WorkerTasksPending());
|
|
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 = RunJS<JSFunction>(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_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
// 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(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_FALSE(shared->is_compiled());
|
|
ASSERT_FALSE(platform.IdleTaskPending());
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
|
|
// Kick off background tasks and freeze them.
|
|
dispatcher.block_for_testing_.SetValue(true);
|
|
platform.RunWorkerTasks(V8::GetCurrentPlatform());
|
|
|
|
// Busy loop until the background task started running.
|
|
while (dispatcher.block_for_testing_.Value()) {
|
|
}
|
|
dispatcher.AbortAll(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_worker_tasks_ == 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
ASSERT_TRUE(platform.ForegroundTasksPending());
|
|
ASSERT_TRUE(platform.IdleTaskPending());
|
|
ASSERT_FALSE(platform.WorkerTasksPending());
|
|
|
|
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 = RunJS<JSFunction>(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 = default;
|
|
|
|
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 = RunJS<JSFunction>(script);
|
|
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
|
|
|
|
ASSERT_TRUE(dispatcher.Enqueue(shared));
|
|
base::Semaphore sem(0);
|
|
V8::GetCurrentPlatform()->CallOnWorkerThread(
|
|
base::make_unique<PressureNotificationTask>(i_isolate(), &dispatcher,
|
|
&sem));
|
|
|
|
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 = RunJS<JSFunction>(script);
|
|
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
|
|
std::unique_ptr<CompilerDispatcherJob> job(
|
|
new UnoptimizedCompileJob(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.WorkerTasksPending());
|
|
}
|
|
|
|
TEST_F(CompilerDispatcherTest, EnqueueAndStep) {
|
|
MockPlatform platform;
|
|
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
|
|
|
|
const char script[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f = RunJS<JSFunction>(script);
|
|
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
|
|
|
|
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_TRUE(dispatcher.EnqueueAndStep(shared));
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
|
|
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(platform.IdleTaskPending());
|
|
platform.ClearIdleTask();
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
platform.ClearWorkerTasks();
|
|
}
|
|
|
|
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 script[] = "function lazy() { return 42; }; lazy;";
|
|
Handle<JSFunction> f = RunJS<JSFunction>(script);
|
|
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.
|
|
RunJS("lazy();");
|
|
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 = RunJS<JSFunction>(source2);
|
|
Handle<SharedFunctionInfo> shared2(lazy2->shared(), i_isolate());
|
|
ASSERT_FALSE(shared2->is_compiled());
|
|
|
|
const char source1[] = "function lazy1() { return lazy2(); }; lazy1;";
|
|
Handle<JSFunction> lazy1 = RunJS<JSFunction>(source1);
|
|
Handle<SharedFunctionInfo> shared1(lazy1->shared(), i_isolate());
|
|
ASSERT_FALSE(shared1->is_compiled());
|
|
|
|
ASSERT_TRUE(dispatcher->Enqueue(shared1));
|
|
ASSERT_TRUE(dispatcher->Enqueue(shared2));
|
|
|
|
RunJS("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 script[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f = RunJS<JSFunction>(script);
|
|
Handle<SharedFunctionInfo> shared(f->shared(), i_isolate());
|
|
|
|
ASSERT_FALSE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_TRUE(dispatcher.EnqueueAndStep(shared));
|
|
ASSERT_TRUE(dispatcher.IsEnqueued(shared));
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
// EnqueueAndStep of the same function again (shouldn't step the job.
|
|
ASSERT_TRUE(dispatcher.EnqueueAndStep(shared));
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
|
|
ASSERT_TRUE(platform.IdleTaskPending());
|
|
ASSERT_TRUE(platform.WorkerTasksPending());
|
|
platform.ClearIdleTask();
|
|
platform.ClearWorkerTasks();
|
|
}
|
|
|
|
TEST_F(CompilerDispatcherTest, CompileMultipleOnBackgroundThread) {
|
|
MockPlatform platform;
|
|
CompilerDispatcher dispatcher(i_isolate(), &platform, FLAG_stack_size);
|
|
|
|
const char script1[] = TEST_SCRIPT();
|
|
Handle<JSFunction> f1 = RunJS<JSFunction>(script1);
|
|
Handle<SharedFunctionInfo> shared1(f1->shared(), i_isolate());
|
|
const char script2[] = TEST_SCRIPT();
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|
Handle<JSFunction> f2 = RunJS<JSFunction>(script2);
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Handle<SharedFunctionInfo> shared2(f2->shared(), i_isolate());
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|
|
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ASSERT_FALSE(platform.IdleTaskPending());
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|
ASSERT_TRUE(dispatcher.Enqueue(shared1));
|
|
ASSERT_TRUE(dispatcher.Enqueue(shared2));
|
|
ASSERT_TRUE(platform.IdleTaskPending());
|
|
|
|
ASSERT_EQ(dispatcher.jobs_.size(), 2u);
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kInitial,
|
|
(++dispatcher.jobs_.begin())->second->status());
|
|
|
|
// 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_EQ(UnoptimizedCompileJob::Status::kPrepared,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kPrepared,
|
|
(++dispatcher.jobs_.begin())->second->status());
|
|
|
|
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.WorkerTasksPending());
|
|
|
|
platform.RunWorkerTasksAndBlock(V8::GetCurrentPlatform());
|
|
|
|
ASSERT_TRUE(platform.IdleTaskPending());
|
|
ASSERT_FALSE(platform.WorkerTasksPending());
|
|
ASSERT_EQ(dispatcher.jobs_.size(), 2u);
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kCompiled,
|
|
dispatcher.jobs_.begin()->second->status());
|
|
ASSERT_EQ(UnoptimizedCompileJob::Status::kCompiled,
|
|
(++dispatcher.jobs_.begin())->second->status());
|
|
|
|
// 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());
|
|
}
|
|
|
|
#undef _STR
|
|
#undef STR
|
|
#undef _SCRIPT
|
|
#undef SCRIPT
|
|
#undef TEST_SCRIPT
|
|
|
|
} // namespace internal
|
|
} // namespace v8
|