Create AllocationSite objects, pointed to by AllocationSiteInfo.

src/builtins.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 192 matching lines @@
 
   JSArray* array;
   if (CalledAsConstructor(isolate)) {
     array = JSArray::cast((*args)[0]);
     // Initialize elements and length in case later allocations fail so that the
     // array object is initialized in a valid state.
     MaybeObject* maybe_array = array->Initialize(0);
     if (maybe_array->IsFailure()) return maybe_array;
 
     AllocationSiteInfo* info = AllocationSiteInfo::FindForJSObject(array);
-    ElementsKind to_kind = array->GetElementsKind();
-    if (info != NULL && info->GetElementsKindPayload(&to_kind)) {
+    if (info != NULL && info->site_is_valid()) {
+      AllocationSite* site = info->allocation_site_casted();
+      ElementsKind to_kind = site->GetElementsKindPayload();
       if (IsMoreGeneralElementsKindTransition(array->GetElementsKind(),
                                               to_kind)) {
         // We have advice that we should change the elements kind
         if (FLAG_trace_track_allocation_sites) {
           PrintF("AllocationSiteInfo: pre-transitioning array %p(%s->%s)\n",
                  reinterpret_cast<void*>(array),
                  ElementsKindToString(array->GetElementsKind()),
                  ElementsKindToString(to_kind));
         }
 
@@ skipping 1599 matching lines @@
   return Handle<Code>(code_address);                        \
 }
 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C)
 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A)
 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A)
 #undef DEFINE_BUILTIN_ACCESSOR_C
 #undef DEFINE_BUILTIN_ACCESSOR_A
 
 
 } }  // namespace v8::internal