Revert of Reland "Remove support for thread-based recompilation"

src/isolate.cc

 // Copyright 2012 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 <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/v8.h"
@@ skipping 1718 matching lines @@
       random_number_generator_(NULL),
       store_buffer_hash_set_1_address_(NULL),
       store_buffer_hash_set_2_address_(NULL),
       serializer_enabled_(enable_serializer),
       has_fatal_error_(false),
       initialized_from_snapshot_(false),
       cpu_profiler_(NULL),
       heap_profiler_(NULL),
       function_entry_hook_(NULL),
       deferred_handles_head_(NULL),
-      optimizing_compile_dispatcher_(NULL),
+      optimizing_compiler_thread_(NULL),
       stress_deopt_count_(0),
       next_optimization_id_(0),
 #if TRACE_MAPS
       next_unique_sfi_id_(0),
 #endif
       use_counter_callback_(NULL),
       basic_block_profiler_(NULL) {
   {
     base::LockGuard<base::Mutex> lock_guard(thread_data_table_mutex_.Pointer());
     CHECK(thread_data_table_);
@@ skipping 76 matching lines @@
 
 
 void Isolate::Deinit() {
   TRACE_ISOLATE(deinit);
 
   debug()->Unload();
 
   FreeThreadResources();
 
   if (concurrent_recompilation_enabled()) {
-    optimizing_compile_dispatcher_->Stop();
-    delete optimizing_compile_dispatcher_;
-    optimizing_compile_dispatcher_ = NULL;
+    optimizing_compiler_thread_->Stop();
+    delete optimizing_compiler_thread_;
+    optimizing_compiler_thread_ = NULL;
   }
 
   if (heap_.mark_compact_collector()->sweeping_in_progress()) {
     heap_.mark_compact_collector()->EnsureSweepingCompleted();
   }
 
   DumpAndResetCompilationStats();
 
   if (FLAG_print_deopt_stress) {
     PrintF(stdout, "=== Stress deopt counter: %u\n", stress_deopt_count_);
@@ skipping 277 matching lines @@
   // TODO(yangguo): move this to ResourceConstraints::ConfigureDefaults
   // once ResourceConstraints becomes an argument to the Isolate constructor.
   if (max_available_threads_ < 1) {
     // Choose the default between 1 and 4.
     max_available_threads_ =
         Max(Min(base::SysInfo::NumberOfProcessors(), 4), 1);
   }
 
   if (FLAG_trace_hydrogen || FLAG_trace_hydrogen_stubs) {
     PrintF("Concurrent recompilation has been disabled for tracing.\n");
-  } else if (OptimizingCompileDispatcher::Enabled(max_available_threads_)) {
-    optimizing_compile_dispatcher_ = new OptimizingCompileDispatcher(this);
+  } else if (OptimizingCompilerThread::Enabled(max_available_threads_)) {
+    optimizing_compiler_thread_ = new OptimizingCompilerThread(this);
+    optimizing_compiler_thread_->Start();
   }
 
   // Initialize runtime profiler before deserialization, because collections may
   // occur, clearing/updating ICs.
   runtime_profiler_ = new RuntimeProfiler(this);
 
   // If we are deserializing, read the state into the now-empty heap.
   if (!create_heap_objects) {
     des->Deserialize(this);
   }
@@ skipping 510 matching lines @@
   if (prev_ && prev_->Intercept(flag)) return true;
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 } }  // namespace v8::internal