Deopt marked code at safe deoptimization point when pretenuring.

src/objects-inl.h

 // 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 1379 matching lines @@
 
 
 inline void AllocationSite::IncrementMementoCreateCount() {
   ASSERT(FLAG_allocation_site_pretenuring);
   int value = memento_create_count();
   set_memento_create_count(value + 1);
 }
 
 
 inline bool AllocationSite::DigestPretenuringFeedback() {
-  bool decision_made = false;
+  bool decision_changed = false;
   int create_count = memento_create_count();
   if (create_count >= kPretenureMinimumCreated) {
     int found_count = memento_found_count();
     double ratio = static_cast<double>(found_count) / create_count;
     if (FLAG_trace_track_allocation_sites) {
       PrintF("AllocationSite: %p (created, found, ratio) (%d, %d, %f)\n",
              static_cast<void*>(this), create_count, found_count, ratio);
     }
     int current_mode = GetPretenureMode();
     PretenureDecision result = ratio >= kPretenureRatio
         ? kTenure
         : kDontTenure;
     set_pretenure_decision(result);
-    decision_made = true;
     if (current_mode != GetPretenureMode()) {
-      dependent_code()->DeoptimizeDependentCodeGroup(
+      decision_changed = true;
+      dependent_code()->MarkCodeForDeoptimization(
           GetIsolate(),
           DependentCode::kAllocationSiteTenuringChangedGroup);
     }
   }
 
   // Clear feedback calculation fields until the next gc.
   set_memento_found_count(0);
   set_memento_create_count(0);
-  return decision_made;
+  return decision_changed;
 }
 
 
 void JSObject::EnsureCanContainHeapObjectElements(Handle<JSObject> object) {
   object->ValidateElements();
   ElementsKind elements_kind = object->map()->elements_kind();
   if (!IsFastObjectElementsKind(elements_kind)) {
     if (IsFastHoleyElementsKind(elements_kind)) {
       TransitionElementsKind(object, FAST_HOLEY_ELEMENTS);
     } else {
@@ skipping 5055 matching lines @@
 #undef WRITE_UINT32_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_