Allocation site pretenuring.

src/heap-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 466 matching lines @@
   }
 }
 
 
 void Heap::ScavengePointer(HeapObject** p) {
   ScavengeObject(p, *p);
 }
 
 
 void Heap::UpdateAllocationSiteFeedback(HeapObject* object) {
+  Heap* heap = object->GetHeap();
   if (FLAG_allocation_site_pretenuring &&
+      heap->new_space_high_promotion_mode_active_ &&
       AllocationSite::CanTrack(object->map()->instance_type())) {
     AllocationMemento* memento = AllocationMemento::FindForHeapObject(
-        object, true);
+        object, heap, true);
     if (memento != NULL) {
       ASSERT(memento->IsValid());
       bool add_to_scratchpad =
           memento->GetAllocationSite()->IncrementMementoFoundCount();
-      Heap* heap = object->GetIsolate()->heap();
       if (add_to_scratchpad && heap->allocation_sites_scratchpad_length <
               kAllocationSiteScratchpadSize) {
         heap->allocation_sites_scratchpad[
             heap->allocation_sites_scratchpad_length++] =
                 memento->GetAllocationSite();
       }
     }
   }
 }
 
@@ skipping 311 matching lines @@
 #ifdef DEBUG
   Isolate* isolate = Isolate::Current();
   isolate->heap()->disallow_allocation_failure_ = old_state_;
 #endif
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_