--- sql/sql_select.cc	2009-07-13 16:12:07.000000000 -0700
+++ sql/sql_select.cc.studio	2009-12-02 03:27:24.449272132 -0800
@@ -82,6 +82,7 @@
 		      double record_count,double read_time);
 static uint cache_record_length(JOIN *join,uint index);
 static double prev_record_reads(JOIN *join, uint idx, table_map found_ref);
+#pragma opt 2 (prev_record_reads)
 static bool get_best_combination(JOIN *join);
 static store_key *get_store_key(THD *thd,
 				KEYUSE *keyuse, table_map used_tables,