Optimize KeyedStoreGeneric for Smi arrays.

src/serialize.cc

 // Copyright 2011 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 476 matching lines @@
       42,
       "power_double_int_function");
   Add(ExternalReference::store_buffer_top(isolate).address(),
       UNCLASSIFIED,
       43,
       "store_buffer_top");
   Add(ExternalReference::arguments_marker_location(isolate).address(),
       UNCLASSIFIED,
       44,
       "Factory::arguments_marker().location()");
+  Add(ExternalReference::address_of_canonical_non_hole_nan().address(),
+      UNCLASSIFIED,
+      45,
+      "canonical_nan");
 }
 
 
 ExternalReferenceEncoder::ExternalReferenceEncoder()
     : encodings_(Match),
       isolate_(Isolate::Current()) {
   ExternalReferenceTable* external_references =
       ExternalReferenceTable::instance(isolate_);
   for (int i = 0; i < external_references->size(); ++i) {
     Put(external_references->address(i), i);
@@ skipping 1050 matching lines @@
       fullness_[space] = RoundUp(fullness_[space], Page::kPageSize);
     }
   }
   int allocation_address = fullness_[space];
   fullness_[space] = allocation_address + size;
   return allocation_address;
 }
 
 
 } }  // namespace v8::internal