hw-doloop.c (reorg_loops): Release the bitmap obstack.

2014-01-07  Dan Xio Qiang <ziyan01@163.com>

        * hw-doloop.c (reorg_loops): Release the bitmap obstack.

From-SVN: r206416

gcc/ChangeLog

+2014-01-07  Dan Xio Qiang <ziyan01@163.com>
+
+	* hw-doloop.c (reorg_loops): Release the bitmap obstack.
+
 2014-01-07  John David Anglin  <danglin@gcc.gnu.org>
 
 	PR target/59652
@@ -78,7 +82,7 @@
 	* doc/implement-c.texi: Mention that other integer types are
 	permitted as bit-field types in strictly conforming mode.
 
-2014-01-02  Felix Yang  <fei.yang0953@gmail.com>
+2014-01-06  Felix Yang  <fei.yang0953@gmail.com>
 
 	* modulo-sched.c (schedule_reg_moves): Clear distance1_uses if it
 	is newly allocated.

gcc/hw-doloop.c

@@ -661,6 +661,7 @@ reorg_loops (bool do_reorder, struct hw_doloop_hooks *hooks)
     }
 
   free_loops (loops);
+  bitmap_obstack_release (&loop_stack);
 
   if (dump_file)
     print_rtl (dump_file, get_insns ());