Add missing entry.

From-SVN: r192527

gcc/ChangeLog

+2012-10-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR rtl-optimization/54870
+	* tree.h (TREE_ADDRESSABLE): Document special usage on SSA_NAME.
+	* cfgexpand.c (update_alias_info_with_stack_vars ): Set it on the
+	SSA_NAME pointer that points to a partition if there is at least
+	one variable with it set in the partition.
+	* dse.c (local_variable_can_escape): New predicate.
+	(can_escape): Call it.
+	* gimplify.c (mark_addressable): If this is a partitioned decl, also
+	mark the SSA_NAME pointer that points to a partition.
+
 2012-10-16  Steven Bosscher  <steven@gcc.gnu.org>
 
 	* df-problems.c (df_kill_notes): Split up in two functions.