Bookkeeping for allocation site pretenuring

src/heap-inl.h

Index: src/heap-inl.h
diff --git a/src/heap-inl.h b/src/heap-inl.h
index 9d57c995ca0a566f40de9848491743655b3dd9b7..2d4b10ed1f3eaa42de6402f8fce370da94db2ed0 100644
--- a/src/heap-inl.h
+++ b/src/heap-inl.h
@@ -483,6 +483,18 @@ void Heap::ScavengePointer(HeapObject** p) {
 }
 
 
+void Heap::UpdateAllocationSiteFeedback(HeapObject* object) {
+  if (FLAG_allocation_site_pretenuring && object->IsJSObject()) {
+    AllocationMemento* memento = AllocationMemento::FindForJSObject(
+        JSObject::cast(object), true);
+    if (memento != NULL) {
+      ASSERT(memento->IsValid());
+      memento->GetAllocationSite()->IncrementMementoFoundCount();
+    }
+  }
+}
+
+
 void Heap::ScavengeObject(HeapObject** p, HeapObject* object) {
   ASSERT(object->GetIsolate()->heap()->InFromSpace(object));
 
@@ -501,12 +513,7 @@ void Heap::ScavengeObject(HeapObject** p, HeapObject* object) {
     return;
   }
 
-  if (FLAG_trace_track_allocation_sites && object->IsJSObject()) {
-    if (AllocationMemento::FindForJSObject(JSObject::cast(object), true) !=
-        NULL) {
-      object->GetIsolate()->heap()->allocation_mementos_found_++;
-    }
-  }
+  UpdateAllocationSiteFeedback(object);
 
   // AllocationMementos are unrooted and shouldn't survive a scavenge
   ASSERT(object->map() != object->GetHeap()->allocation_memento_map());