re PR c++/62232 (-Wnon-virtual-dtor shouldn't warn on final classes)

/cp
2014-09-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/62232
	* class.c (finish_struct_1): Do not -Wnon-virtual-dtor warn
	for final class types.

/testsuite
2014-09-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/62232
	* g++.dg/cpp0x/Wdtor1.C: New.

From-SVN: r215351

gcc/cp/ChangeLog

+2014-09-18  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/62232
+	* class.c (finish_struct_1): Do not -Wnon-virtual-dtor warn
+	for final class types.
+
 2014-09-15  Jason Merrill  <jason@redhat.com>
 
 	* pt.c (lookup_template_class_1): Splice out abi_tag attribute if

gcc/cp/class.c

@@ -6506,7 +6506,8 @@ finish_struct_1 (tree t)
   /* This warning does not make sense for Java classes, since they
      cannot have destructors.  */
   if (!TYPE_FOR_JAVA (t) && warn_nonvdtor
-      && TYPE_POLYMORPHIC_P (t) && accessible_nvdtor_p (t))
+      && TYPE_POLYMORPHIC_P (t) && accessible_nvdtor_p (t)
+      && !CLASSTYPE_FINAL (t))
     warning (OPT_Wnon_virtual_dtor,
 	     "%q#T has virtual functions and accessible"
 	     " non-virtual destructor", t);

gcc/testsuite/ChangeLog

+2014-09-18  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/62232
+	* g++.dg/cpp0x/Wdtor1.C: New.
+
 2014-09-18  Joseph Myers  <joseph@codesourcery.com>
 
 	* gcc.dg/torture/float128-exact-underflow.c: New test.

gcc/testsuite/g++.dg/cpp0x/Wdtor1.C

+// PR c++/62232
+// { dg-do compile { target c++11 } }
+// { dg-options "-Wnon-virtual-dtor" }
+
+class base
+{
+protected:
+  ~base () {}
+  virtual void foo (){};
+};
+class derive final : public base
+{
+};