First implementation of allocation elimination in Hydrogen.

src/factory.cc

 // Copyright 2013 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
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 Handle<JSObject> Factory::NewJSObjectFromMap(Handle<Map> map,
                                              PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObjectFromMap(*map, pretenure),
       JSObject);
 }
 
 
+Handle<JSObject> Factory::NewJSObjectFromMapForDeoptimizer(
+    Handle<Map> map, PretenureFlag pretenure) {
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateJSObjectFromMapForDeoptimizer(*map, pretenure),
+      JSObject);
+}
+
+
 Handle<JSArray> Factory::NewJSArray(int capacity,
                                     ElementsKind elements_kind,
                                     PretenureFlag pretenure) {
   if (capacity != 0) {
     elements_kind = GetHoleyElementsKind(elements_kind);
   }
   CALL_HEAP_FUNCTION(isolate(),
                      isolate()->heap()->AllocateJSArrayAndStorage(
                          elements_kind,
                          0,
@@ skipping 565 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal