tree-ssa-tail-merge.c (stmt_local_def): Return false if the statement could throw.

	* tree-ssa-tail-merge.c (stmt_local_def): Return false if the statement
	could throw.

From-SVN: r205196

gcc/ChangeLog

+2013-11-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* tree-ssa-tail-merge.c (stmt_local_def): Return false if the statement
+	could throw.
+
 2013-11-21  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/53976

gcc/tree-ssa-tail-merge.c

@@ -309,6 +309,7 @@ stmt_local_def (gimple stmt)
   def_operand_p def_p;
 
   if (gimple_has_side_effects (stmt)
+      || stmt_could_throw_p (stmt)
       || gimple_vdef (stmt) != NULL_TREE)
     return false;