Pretenure call new support.

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 1456 matching lines @@
   ASSERT(!IsZombie());
   Initialize();
   set_pretenure_decision(kZombie);
 }
 
 
 // Heuristic: We only need to create allocation site info if the boilerplate
 // elements kind is the initial elements kind.
 AllocationSiteMode AllocationSite::GetMode(
     ElementsKind boilerplate_elements_kind) {
-  if (IsFastSmiElementsKind(boilerplate_elements_kind)) {
+  if (FLAG_pretenuring_call_new ||
+      IsFastSmiElementsKind(boilerplate_elements_kind)) {
     return TRACK_ALLOCATION_SITE;
   }
 
   return DONT_TRACK_ALLOCATION_SITE;
 }
 
 
 AllocationSiteMode AllocationSite::GetMode(ElementsKind from,
                                            ElementsKind to) {
-  if (IsFastSmiElementsKind(from) &&
-      IsMoreGeneralElementsKindTransition(from, to)) {
+  if (FLAG_pretenuring_call_new ||
+      (IsFastSmiElementsKind(from) &&
+       IsMoreGeneralElementsKindTransition(from, to))) {
     return TRACK_ALLOCATION_SITE;
   }
 
   return DONT_TRACK_ALLOCATION_SITE;
 }
 
 
 inline bool AllocationSite::CanTrack(InstanceType type) {
   if (FLAG_allocation_site_pretenuring) {
     return type == JS_ARRAY_TYPE ||
@@ skipping 5284 matching lines @@
 #undef READ_UINT32_FIELD
 #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_