Add a compare stub on ARM.

src/serialize.cc

 // Copyright 2006-2008 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 693 matching lines @@
       11,
       "add_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::SUB).address(),
       UNCLASSIFIED,
       12,
       "sub_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::MUL).address(),
       UNCLASSIFIED,
       13,
       "mul_two_doubles");
+  Add(ExternalReference::compare_doubles().address(),
+      UNCLASSIFIED,
+      14,
+      "compare_doubles");
 #endif
 }
 
 
 ExternalReferenceEncoder::ExternalReferenceEncoder()
     : encodings_(Match) {
   ExternalReferenceTable* external_references =
       ExternalReferenceTable::instance();
   for (int i = 0; i < external_references->size(); ++i) {
     Put(external_references->address(i), i);
@@ skipping 903 matching lines @@
         ASSERT(index < large_objects_.length());
       }
       return large_objects_[index];  // s.page_offset() is ignored.
   }
   UNREACHABLE();
   return NULL;
 }
 
 
 } }  // namespace v8::internal