constexpr.c (cxx_eval_call_expression): Don't add this call to the hash table if !depth_ok.

	* constexpr.c (cxx_eval_call_expression): Don't add this call to
	the hash table if !depth_ok.

From-SVN: r226256

gcc/cp/ChangeLog

+2015-07-27  Jason Merrill  <jason@redhat.com>
+
+	* constexpr.c (cxx_eval_call_expression): Don't add this call to
+	the hash table if !depth_ok.
+
 2015-07-27  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/66555

gcc/cp/constexpr.c

@@ -1289,7 +1289,7 @@ cxx_eval_call_expression (const constexpr_ctx *ctx, tree t,
   tree result = NULL_TREE;
 
   constexpr_call *entry = NULL;
-  if (!non_constant_args)
+  if (depth_ok && !non_constant_args)
     {
       new_call.hash = iterative_hash_template_arg
 	(new_call.bindings, constexpr_fundef_hasher::hash (new_call.fundef));