diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 96003073cd7..9dd5e9c54f3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-08-18  Steven Bosscher  <steven@gcc.gnu.org>
+
+	PR middle-end/54313
+	* dse.c (dse_step7): Don't free kill_on_calls bitmap, it is
+	freed when its obstack is release.
+
 2012-08-18  Andrew Pinski  <pinskia@gmail.com>
 
 	* alloc-pool.c (pool_alloc): Add valgrind markers.
diff --git a/gcc/dse.c b/gcc/dse.c
index 3375808b61d..347d24375f6 100644
--- a/gcc/dse.c
+++ b/gcc/dse.c
@@ -3823,7 +3823,6 @@ dse_step7 (void)
   VEC_free (group_info_t, heap, rtx_group_vec);
   BITMAP_FREE (all_blocks);
   BITMAP_FREE (scratch);
-  BITMAP_FREE (kill_on_calls);
 
   free_alloc_pool (rtx_store_info_pool);
   free_alloc_pool (read_info_pool);