* trans-mem.c (execute_tm_mark): Release bb_regions.

From-SVN: r193637

gcc/ChangeLog

 2012-11-19  Aldy Hernandez  <aldyh@redhat.com>
 
+	* trans-mem.c (execute_tm_mark): Release bb_regions.
+
+2012-11-19  Aldy Hernandez  <aldyh@redhat.com>
+
 	* trans-mem (collect_bb2reg): Stop scanning at irrevocable blocks.
 	(get_bb_regions_instrumented): Add new traverse_clone argument and
 	use it.

gcc/trans-mem.c

@@ -2840,6 +2840,8 @@ execute_tm_mark (void)
     if (r != NULL)
       expand_block_tm (r, BASIC_BLOCK (i));
 
+  bb_regions.release ();
+
   // Propagate flags from inner transactions outwards.
   propagate_tm_flags_out (all_tm_regions);