[PATCH] Fix PR80048

[Richard Biener]

Bootstrapped / tested on x86_64-unknown-linux-gnu, applied.

Richard.

2017-03-17  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/80048
        * sese.c (free_sese_info): Properly release rename_map and
        copied_bb_map elements.

Index: gcc/sese.c
===================================================================
--- gcc/sese.c  (revision 246188)
+++ gcc/sese.c  (working copy)
@@ -199,11 +199,11 @@ free_sese_info (sese_info_p region)
   region->loop_nest.release ();
 
   for (rename_map_t::iterator it = region->rename_map->begin ();
-       it != region->rename_map->begin (); ++it)
+       it != region->rename_map->end (); ++it)
     (*it).second.release ();
 
   for (bb_map_t::iterator it = region->copied_bb_map->begin ();
-       it != region->copied_bb_map->begin (); ++it)
+       it != region->copied_bb_map->end (); ++it)
     (*it).second.release ();
 
   delete region->rename_map;