Add missing smi check in IC for nonexistent properties....

src/arm/stub-cache-arm.cc

 // Copyright 2006-2009 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 1402 matching lines @@
   // ----------- S t a t e -------------
   //  -- r2    : name
   //  -- lr    : return address
   //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
   // Load receiver.
   __ ldr(r0, MemOperand(sp, 0));
 
+  // Check that receiver is not a smi.
+  __ tst(r0, Operand(kSmiTagMask));
+  __ b(eq, &miss);

[antonm, 2010/04/20 11:28:38]

drive by comment: there is BranchOnSmi macro

+
   // Check the maps of the full prototype chain.
   CheckPrototypes(object, r0, last, r3, r1, name, &miss);
 
   // If the last object in the prototype chain is a global object,
   // check that the global property cell is empty.
   if (last->IsGlobalObject()) {
     Object* cell = GenerateCheckPropertyCell(masm(),
                                              GlobalObject::cast(last),
                                              name,
                                              r1,
@@ skipping 518 matching lines @@
   __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal