6bd1d3c280
Merge the outer_scope_info and feedback_metadata fields on SharedFunctionInfo. outer_scope_info is only used during parsing, and feedback_metadata is only available after compilation, so the two never exist at the same time. Thus, they can share a field slot. The exception is un-compiling and re-compiling a function, where we need the outer_scope_info again. Fortunately, the outer_scope_info can be re-calculated from the SFI's scope_info. Bug: v8:7606 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I6b97fefe859e89df75ad870da4a0bfa4b869772a Reviewed-on: https://chromium-review.googlesource.com/992432 Reviewed-by: Igor Sheludko <ishell@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#52454}
96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
// Copyright 2017 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/optimizing-compile-dispatcher.h"
|
|
|
|
#include "src/base/atomic-utils.h"
|
|
#include "src/base/platform/semaphore.h"
|
|
#include "src/compiler.h"
|
|
#include "src/handles.h"
|
|
#include "src/isolate.h"
|
|
#include "src/objects-inl.h"
|
|
#include "src/optimized-compilation-info.h"
|
|
#include "src/parsing/parse-info.h"
|
|
#include "test/unittests/test-helpers.h"
|
|
#include "test/unittests/test-utils.h"
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
typedef TestWithNativeContext OptimizingCompileDispatcherTest;
|
|
|
|
namespace {
|
|
|
|
class BlockingCompilationJob : public OptimizedCompilationJob {
|
|
public:
|
|
BlockingCompilationJob(Isolate* isolate, Handle<JSFunction> function)
|
|
: OptimizedCompilationJob(isolate->stack_guard()->real_climit(), &info_,
|
|
"BlockingCompilationJob",
|
|
State::kReadyToExecute),
|
|
shared_(function->shared()),
|
|
zone_(isolate->allocator(), ZONE_NAME),
|
|
info_(&zone_, function->GetIsolate(), shared_, function),
|
|
blocking_(false),
|
|
semaphore_(0) {}
|
|
~BlockingCompilationJob() override = default;
|
|
|
|
bool IsBlocking() const { return blocking_.Value(); }
|
|
void Signal() { semaphore_.Signal(); }
|
|
|
|
// OptimiziedCompilationJob implementation.
|
|
Status PrepareJobImpl(Isolate* isolate) override { UNREACHABLE(); }
|
|
|
|
Status ExecuteJobImpl() override {
|
|
blocking_.SetValue(true);
|
|
semaphore_.Wait();
|
|
blocking_.SetValue(false);
|
|
return SUCCEEDED;
|
|
}
|
|
|
|
Status FinalizeJobImpl(Isolate* isolate) override { return SUCCEEDED; }
|
|
|
|
private:
|
|
Handle<SharedFunctionInfo> shared_;
|
|
Zone zone_;
|
|
OptimizedCompilationInfo info_;
|
|
base::AtomicValue<bool> blocking_;
|
|
base::Semaphore semaphore_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(BlockingCompilationJob);
|
|
};
|
|
|
|
} // namespace
|
|
|
|
TEST_F(OptimizingCompileDispatcherTest, Construct) {
|
|
OptimizingCompileDispatcher dispatcher(i_isolate());
|
|
ASSERT_TRUE(OptimizingCompileDispatcher::Enabled());
|
|
ASSERT_TRUE(dispatcher.IsQueueAvailable());
|
|
}
|
|
|
|
TEST_F(OptimizingCompileDispatcherTest, NonBlockingFlush) {
|
|
Handle<JSFunction> fun =
|
|
RunJS<JSFunction>("function f() { function g() {}; return g;}; f();");
|
|
BlockingCompilationJob* job = new BlockingCompilationJob(i_isolate(), fun);
|
|
|
|
OptimizingCompileDispatcher dispatcher(i_isolate());
|
|
ASSERT_TRUE(OptimizingCompileDispatcher::Enabled());
|
|
ASSERT_TRUE(dispatcher.IsQueueAvailable());
|
|
dispatcher.QueueForOptimization(job);
|
|
|
|
// Busy-wait for the job to run on a background thread.
|
|
while (!job->IsBlocking()) {
|
|
}
|
|
|
|
// Should not block.
|
|
dispatcher.Flush(BlockingBehavior::kDontBlock);
|
|
|
|
// Unblock the job & finish.
|
|
job->Signal();
|
|
dispatcher.Stop();
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace v8
|