re PR c++/79143 ([new inheriting constructors] inheriting constructor fails with…

re PR c++/79143 ([new inheriting constructors] inheriting constructor fails with brace initialization)

	PR c++/79143
	* pt.c (instantiate_class_template_1): Copy CLASSTYPE_NON_AGGREGATE
	from pattern to type.

	* g++.dg/cpp1z/pr79143.C: New test.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r245315

gcc/cp/ChangeLog

+2017-02-09  Jakub Jelinek  <jakub@redhat.com>
+	    Jason Merrill  <jason@redhat.com>
+
+	PR c++/79143
+	* pt.c (instantiate_class_template_1): Copy CLASSTYPE_NON_AGGREGATE
+	from pattern to type.
+
 2017-02-09  Jason Merrill  <jason@redhat.com>
 
 	PR c++/79316 - default argument in deduction guide

gcc/cp/pt.c

@@ -10253,6 +10253,7 @@ instantiate_class_template_1 (tree type)
   TYPE_PACKED (type) = TYPE_PACKED (pattern);
   SET_TYPE_ALIGN (type, TYPE_ALIGN (pattern));
   TYPE_USER_ALIGN (type) = TYPE_USER_ALIGN (pattern);
+  CLASSTYPE_NON_AGGREGATE (type) = CLASSTYPE_NON_AGGREGATE (pattern);
   if (ANON_AGGR_TYPE_P (pattern))
     SET_ANON_AGGR_TYPE_P (type);
   if (CLASSTYPE_VISIBILITY_SPECIFIED (pattern))

gcc/testsuite/ChangeLog

+2017-02-09  Jakub Jelinek  <jakub@redhat.com>
+	    Jason Merrill  <jason@redhat.com>
+
+	PR c++/79143
+	* g++.dg/cpp1z/pr79143.C: New test.
+
 2017-02-09  Jan Hubicka  <hubicka@ucw.cz>
 
 	* gcc.dg/loop-unswitch-2.c: Update testcase.

gcc/testsuite/g++.dg/cpp1z/pr79143.C

+// PR c++/79143
+// { dg-do compile }
+// { dg-options "-std=c++1z" }
+
+struct base {
+  base (int, int) {}
+};
+
+template<class>
+struct derived : base {
+  using base::base;
+};
+
+template<class>
+struct derived2 : base {
+  derived2 (int x, int y) : base (x, y) {}
+};
+
+int
+main ()
+{
+  base (13, 42);
+  derived<int> (13, 42);
+  derived2<int> (13, 42);
+  base{13, 42};
+  derived<int>{13, 42}; // { dg-bogus "too many initializers" }
+  derived2<int>{13, 42};
+}