[platform] Implement a worker pool

src/libplatform/worker-thread.cc

Index: src/libplatform/worker-thread.cc
diff --git a/src/hydrogen-load-elimination.h b/src/libplatform/worker-thread.cc
similarity index 80%
copy from src/hydrogen-load-elimination.h
copy to src/libplatform/worker-thread.cc
index ef6f71fa11388555b5090161ada485d835019db9..6ac20a4c258f3be89e07f3c00868f94554cfc2e3 100644
--- a/src/hydrogen-load-elimination.h
+++ b/src/libplatform/worker-thread.cc
@@ -25,26 +25,28 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_HYDROGEN_LOAD_ELIMINATION_H_
-#define V8_HYDROGEN_LOAD_ELIMINATION_H_
+#include "worker-thread.h"
 
-#include "hydrogen.h"
+// TODO(jochen): We should have our own version of checks.h.
+#include "../checks.h"
+#include "../../include/v8-platform.h"
+#include "task-queue.h"
 
 namespace v8 {
 namespace internal {
 
-class HLoadEliminationPhase : public HPhase {
- public:
-  explicit HLoadEliminationPhase(HGraph* graph)
-      : HPhase("H_Load elimination", graph) { }
+WorkerThread::WorkerThread(TaskQueue* queue)
+    : Thread("V8 WorkerThread"), queue_(queue) {}
 
-  void Run();
 
- private:
-  void EliminateLoads(HBasicBlock* block);
-};
+WorkerThread::~WorkerThread() {}
 
 
-} }  // namespace v8::internal
+void WorkerThread::Run() {
+  while (Task* task = queue_->GetNext()) {
+    task->Run();
+    delete task;
+  }
+}
 
-#endif  // V8_HYDROGEN_LOAD_ELIMINATION_H_
+} }  // namespace v8::internal