Use a separate marker value to allocate the arguments object on deoptimzation...

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 629 matching lines @@
 ExternalReference ExternalReference::keyed_lookup_cache_field_offsets() {
   return ExternalReference(KeyedLookupCache::field_offsets_address());
 }
 
 
 ExternalReference ExternalReference::the_hole_value_location() {
   return ExternalReference(Factory::the_hole_value().location());
 }
 
 
+ExternalReference ExternalReference::arguments_marker_location() {
+  return ExternalReference(Factory::arguments_marker().location());
+}
+
+
 ExternalReference ExternalReference::roots_address() {
   return ExternalReference(Heap::roots_address());
 }
 
 
 ExternalReference ExternalReference::address_of_stack_limit() {
   return ExternalReference(StackGuard::address_of_jslimit());
 }
 
 
@@ skipping 276 matching lines @@
     assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
     state_.written_position = state_.current_position;
     written = true;
   }
 
   // Return whether something was written.
   return written;
 }
 
 } }  // namespace v8::internal