Adding 'isolates' argument to LOG to get rid of multiple TLS fetches in profiling.

src/jsregexp.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 99 matching lines @@
 
 
 Handle<Object> RegExpImpl::Compile(Handle<JSRegExp> re,
                                    Handle<String> pattern,
                                    Handle<String> flag_str) {
   Isolate* isolate = re->GetIsolate();
   JSRegExp::Flags flags = RegExpFlagsFromString(flag_str);
   CompilationCache* compilation_cache = isolate->compilation_cache();
   Handle<FixedArray> cached = compilation_cache->LookupRegExp(pattern, flags);
   bool in_cache = !cached.is_null();
-  LOG(RegExpCompileEvent(re, in_cache));
+  LOG(isolate, RegExpCompileEvent(re, in_cache));
 
   Handle<Object> result;
   if (in_cache) {
     re->set_data(*cached);
     return re;
   }
   pattern = FlattenGetString(pattern);
   CompilationZoneScope zone_scope(DELETE_ON_EXIT);
   PostponeInterruptsScope postpone(isolate);
   RegExpCompileData parse_result;
@@ skipping 5226 matching lines @@
   }
 
   return compiler.Assemble(&macro_assembler,
                            node,
                            data->capture_count,
                            pattern);
 }
 
 
 }}  // namespace v8::internal