--- gcc/function.c	(/gcc-local/trunk)	(revision 30596)
+++ gcc/function.c	(/gcc-local/export-ddg)	(revision 30596)
@@ -5497,6 +5500,7 @@ rest_of_handle_thread_prologue_and_epilo
      scheduling to operate in the epilogue.  */
 
   thread_prologue_and_epilogue_insns ();
+  delete_unreachable_blocks ();
   return 0;
 }
--- gcc/cfgexpand.c	(/gcc-local/trunk)	(revision 30596)
+++ gcc/cfgexpand.c	(/gcc-local/export-ddg)	(revision 30596)
@@ -2003,7 +2004,7 @@ struct tree_opt_pass pass_expand =
   PROP_gimple_leh | PROP_cfg,           /* properties_required */
   PROP_rtl,                             /* properties_provided */
   PROP_trees,				/* properties_destroyed */
-  0,                                    /* todo_flags_start */
-  TODO_dump_func,                       /* todo_flags_finish */
+  TODO_no_verify_trees,                 /* todo_flags_start */
+  TODO_dump_func|TODO_no_verify_trees,	/* todo_flags_finish */
   'r'					/* letter */
 };