Add "isolate" argument to LOG macro to avoid TLS fetches.

src/ia32/stub-cache-ia32.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 982 matching lines @@
     if (save_at_depth == depth) {
       __ mov(Operand(esp, kPointerSize), reg);
     }
 
     // Go to the next object in the prototype chain.
     current = prototype;
   }
   ASSERT(current == holder);
 
   // Log the check depth.
-  LOG(IntEvent("check-maps-depth", depth + 1));
+  LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
 
   // Check the holder map.
   __ cmp(FieldOperand(reg, HeapObject::kMapOffset),
          Immediate(Handle<Map>(holder->map())));
   __ j(not_equal, miss, not_taken);
 
   // Perform security check for access to the global object.
   ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded());
   if (holder->IsJSGlobalProxy()) {
     __ CheckAccessGlobalProxy(reg, scratch1, miss);
@@ skipping 2651 matching lines @@
 
   return GetCode(flags);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32