re PR c++/66216 (Defaulted Operators and constructors not working with aligned attribute)

	PR c++/66216
	* class.c (finish_struct): Call fixup_attribute_variants.

From-SVN: r225087

gcc/cp/ChangeLog

 2015-06-26  Jason Merrill  <jason@redhat.com>
 
+	PR c++/66216
+	* class.c (finish_struct): Call fixup_attribute_variants.
+
 	PR c++/66684
 	* typeck2.c (merge_exception_specifiers): Allow different
 	noexcept-specifiers if we've had errors.

gcc/cp/class.c

@@ -6820,6 +6820,7 @@ finish_struct (tree t, tree attributes)
   unreverse_member_declarations (t);
 
   cplus_decl_attributes (&t, attributes, (int) ATTR_FLAG_TYPE_IN_PLACE);
+  fixup_attribute_variants (t);
 
   /* Nadger the current location so that diagnostics point to the start of
      the struct, not the end.  */

gcc/testsuite/g++.dg/ext/attrib52.C

+// PR c++/66216
+// { dg-do compile { target c++11 } }
+// { dg-options "" }
+
+class CMymy
+{
+  unsigned char _a;
+  unsigned char _b;
+public:
+  constexpr CMymy() : _a(), _b() {}
+
+  constexpr CMymy(const CMymy &) = default;
+  CMymy &operator=(const CMymy &) = default;
+
+} __attribute__((aligned(2)));