Optimize functions on a second thread.

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 36 matching lines @@
 #include "jsregexp.h"
 #include "json-parser.h"
 #include "liveedit.h"
 #include "liveobjectlist-inl.h"
 #include "misc-intrinsics.h"
 #include "parser.h"
 #include "platform.h"
 #include "runtime-profiler.h"
 #include "runtime.h"
 #include "scopeinfo.h"
-#include "smart-array-pointer.h"
+#include "smart-pointers.h"
 #include "string-search.h"
 #include "stub-cache.h"
 #include "v8threads.h"
 #include "vm-state-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 #define RUNTIME_ASSERT(value) \
@@ skipping 8217 matching lines @@
   if (FLAG_trace_opt) {
     PrintF("[failed to optimize ");
     function->PrintName();
     PrintF(": optimized compilation failed]\n");
   }
   function->ReplaceCode(function->shared()->code());
   return function->code();
 }
 
 
+RUNTIME_FUNCTION(MaybeObject*, Runtime_ParallelRecompile) {
+  HandleScope handle_scope(isolate);
+  ASSERT(FLAG_parallel_recompilation);
+  Compiler::RecompileParallel(args.at<JSFunction>(0));
+  return *isolate->factory()->undefined_value();
+}
+
+
 class ActivationsFinder : public ThreadVisitor {
  public:
   explicit ActivationsFinder(JSFunction* function)
       : function_(function), has_activations_(false) {}
 
   void VisitThread(Isolate* isolate, ThreadLocalTop* top) {
     if (has_activations_) return;
 
     for (JavaScriptFrameIterator it(isolate, top); !it.done(); it.Advance()) {
       JavaScriptFrame* frame = it.frame();
@@ skipping 174 matching lines @@
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOptimizationStatus) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 1);
   // The least significant bit (after untagging) indicates whether the
   // function is currently optimized, regardless of reason.
   if (!V8::UseCrankshaft()) {
     return Smi::FromInt(4);  // 4 == "never".
   }
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
+  if (FLAG_parallel_recompilation) {
+    if (function->IsMarkedForLazyRecompilation()) {
+      return Smi::FromInt(5);
+    }
+  }
   if (FLAG_always_opt) {
     // We may have always opt, but that is more best-effort than a real
     // promise, so we still say "no" if it is not optimized.
     return function->IsOptimized() ? Smi::FromInt(3)   // 3 == "always".
                                    : Smi::FromInt(2);  // 2 == "no".
   }
   return function->IsOptimized() ? Smi::FromInt(1)   // 1 == "yes".
                                  : Smi::FromInt(2);  // 2 == "no".
 }
 
@@ skipping 5206 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal