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

src/runtime/runtime-compiler.cc

 // Copyright 2014 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/v8.h"
 
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/deoptimizer.h"
 #include "src/frames.h"
@@ skipping 214 matching lines @@
               (function->shared()->ast_node_count() > 512)
           ? Compiler::CONCURRENT
           : Compiler::NOT_CONCURRENT;
   Handle<Code> result = Handle<Code>::null();
 
   OptimizedCompileJob* job = NULL;
   if (mode == Compiler::CONCURRENT) {
     // Gate the OSR entry with a stack check.
     BackEdgeTable::AddStackCheck(caller_code, pc_offset);
     // Poll already queued compilation jobs.
-    OptimizingCompileDispatcher* dispatcher =
-        isolate->optimizing_compile_dispatcher();
-    if (dispatcher->IsQueuedForOSR(function, ast_id)) {
+    OptimizingCompilerThread* thread = isolate->optimizing_compiler_thread();
+    if (thread->IsQueuedForOSR(function, ast_id)) {
       if (FLAG_trace_osr) {
         PrintF("[OSR - Still waiting for queued: ");
         function->PrintName();
         PrintF(" at AST id %d]\n", ast_id.ToInt());
       }
       return NULL;
     }
 
-    job = dispatcher->FindReadyOSRCandidate(function, ast_id);
+    job = thread->FindReadyOSRCandidate(function, ast_id);
   }
 
   if (job != NULL) {
     if (FLAG_trace_osr) {
       PrintF("[OSR - Found ready: ");
       function->PrintName();
       PrintF(" at AST id %d]\n", ast_id.ToInt());
     }
     result = Compiler::GetConcurrentlyOptimizedCode(job);
   } else if (IsSuitableForOnStackReplacement(isolate, function, caller_code)) {
@@ skipping 61 matching lines @@
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
 
   // First check if this is a real stack overflow.
   StackLimitCheck check(isolate);
   if (check.JsHasOverflowed()) {
     SealHandleScope shs(isolate);
     return isolate->StackOverflow();
   }
 
-  isolate->optimizing_compile_dispatcher()->InstallOptimizedFunctions();
+  isolate->optimizing_compiler_thread()->InstallOptimizedFunctions();
   return (function->IsOptimized()) ? function->code()
                                    : function->shared()->code();
 }
 
 
 bool CodeGenerationFromStringsAllowed(Isolate* isolate,
                                       Handle<Context> context) {
   DCHECK(context->allow_code_gen_from_strings()->IsFalse());
   // Check with callback if set.
   AllowCodeGenerationFromStringsCallback callback =
@@ skipping 97 matching lines @@
   DCHECK(is_valid_language_mode(args.smi_at(4)));
   LanguageMode language_mode = static_cast<LanguageMode>(args.smi_at(4));
   DCHECK(args[5]->IsSmi());
   Handle<SharedFunctionInfo> outer_info(args.at<JSFunction>(2)->shared(),
                                         isolate);
   return CompileGlobalEval(isolate, args.at<String>(1), outer_info,
                            args.at<Object>(3), language_mode, args.smi_at(5));
 }
 }
 }  // namespace v8::internal