Try to preallocate the scratch registers used for inlined keyed loads...

src/codegen-inl.h

 // 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 25 matching lines @@
 
 
 void DeferredCode::SetEntryFrame(Result* arg) {
   ASSERT(generator()->has_valid_frame());
   generator()->frame()->Push(arg);
   enter()->set_entry_frame(new VirtualFrame(generator()->frame()));
   *arg = generator()->frame()->Pop();
 }
 
 
+void DeferredCode::SetEntryFrame(Result* arg0, Result* arg1) {
+  ASSERT(generator()->has_valid_frame());
+  generator()->frame()->Push(arg0);
+  generator()->frame()->Push(arg1);
+  enter()->set_entry_frame(new VirtualFrame(generator()->frame()));
+  *arg1 = generator()->frame()->Pop();
+  *arg0 = generator()->frame()->Pop();
+}
+
+
 // -----------------------------------------------------------------------------
 // Support for "structured" code comments.
 //
 // By selecting matching brackets in disassembler output,
 // code segments can be identified more easily.
 
 #ifdef DEBUG
 
 class Comment BASE_EMBEDDED {
  public:
@@ skipping 19 matching lines @@
  public:
   Comment(MacroAssembler*, const char*)  {}
 };
 
 #endif  // DEBUG
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODEGEN_INL_H_