b8761260dc
Bug: v8:11074 Change-Id: I7b34b6a647bf9ad317bdb97a344739302f892957 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519184 Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#70997}
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
// Copyright 2017 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/optimizing-compile-dispatcher.h"
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#include "src/api/api-inl.h"
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#include "src/base/atomic-utils.h"
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#include "src/base/platform/semaphore.h"
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#include "src/codegen/compiler.h"
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#include "src/codegen/optimized-compilation-info.h"
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#include "src/execution/isolate.h"
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#include "src/execution/local-isolate.h"
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#include "src/handles/handles.h"
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#include "src/heap/local-heap.h"
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#include "src/objects/objects-inl.h"
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#include "src/parsing/parse-info.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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namespace v8 {
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namespace internal {
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using OptimizingCompileDispatcherTest = TestWithNativeContext;
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namespace {
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class BlockingCompilationJob : public OptimizedCompilationJob {
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public:
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BlockingCompilationJob(Isolate* isolate, Handle<JSFunction> function)
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: OptimizedCompilationJob(&info_, "BlockingCompilationJob",
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State::kReadyToExecute),
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shared_(function->shared(), isolate),
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zone_(isolate->allocator(), ZONE_NAME),
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info_(&zone_, isolate, shared_, function, CodeKind::TURBOFAN),
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blocking_(false),
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semaphore_(0) {}
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~BlockingCompilationJob() override = default;
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BlockingCompilationJob(const BlockingCompilationJob&) = delete;
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BlockingCompilationJob& operator=(const BlockingCompilationJob&) = delete;
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bool IsBlocking() const { return blocking_.Value(); }
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void Signal() { semaphore_.Signal(); }
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// OptimiziedCompilationJob implementation.
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Status PrepareJobImpl(Isolate* isolate) override { UNREACHABLE(); }
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Status ExecuteJobImpl(RuntimeCallStats* stats,
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LocalIsolate* local_isolate) override {
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blocking_.SetValue(true);
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semaphore_.Wait();
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blocking_.SetValue(false);
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return SUCCEEDED;
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}
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Status FinalizeJobImpl(Isolate* isolate) override { return SUCCEEDED; }
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private:
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Handle<SharedFunctionInfo> shared_;
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Zone zone_;
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OptimizedCompilationInfo info_;
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base::AtomicValue<bool> blocking_;
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base::Semaphore semaphore_;
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};
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} // namespace
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TEST_F(OptimizingCompileDispatcherTest, Construct) {
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OptimizingCompileDispatcher dispatcher(i_isolate());
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ASSERT_TRUE(OptimizingCompileDispatcher::Enabled());
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ASSERT_TRUE(dispatcher.IsQueueAvailable());
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}
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TEST_F(OptimizingCompileDispatcherTest, NonBlockingFlush) {
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Handle<JSFunction> fun =
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RunJS<JSFunction>("function f() { function g() {}; return g;}; f();");
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IsCompiledScope is_compiled_scope;
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ASSERT_TRUE(
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Compiler::Compile(fun, Compiler::CLEAR_EXCEPTION, &is_compiled_scope));
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BlockingCompilationJob* job = new BlockingCompilationJob(i_isolate(), fun);
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OptimizingCompileDispatcher dispatcher(i_isolate());
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ASSERT_TRUE(OptimizingCompileDispatcher::Enabled());
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ASSERT_TRUE(dispatcher.IsQueueAvailable());
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dispatcher.QueueForOptimization(job);
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// Busy-wait for the job to run on a background thread.
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while (!job->IsBlocking()) {
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}
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// Should not block.
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dispatcher.Flush(BlockingBehavior::kDontBlock);
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// Unblock the job & finish.
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job->Signal();
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dispatcher.Stop();
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}
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} // namespace internal
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} // namespace v8
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