re PR c++/60108 ([C++11] ICE in use_thunk, at cp/method.c:340)

	PR c++/60108
	* semantics.c (expand_or_defer_fn_1): Check DECL_DEFAULTED_FN.

From-SVN: r208030

gcc/cp/ChangeLog

 2014-02-21  Jason Merrill  <jason@redhat.com>
 
+	PR c++/60108
+	* semantics.c (expand_or_defer_fn_1): Check DECL_DEFAULTED_FN.
+
 	PR c++/60185
 	* parser.c (cp_parser_default_argument): Clear
 	current_class_ptr/current_class_ref like tsubst_default_argument.

gcc/cp/semantics.c

@@ -3986,7 +3986,7 @@ expand_or_defer_fn_1 (tree fn)
 	     linkage of all functions, and as that causes writes to
 	     the data mapped in from the PCH file, it's advantageous
 	     to mark the functions at this point.  */
-	  if (!DECL_IMPLICIT_INSTANTIATION (fn))
+	  if (!DECL_IMPLICIT_INSTANTIATION (fn) || DECL_DEFAULTED_FN (fn))
 	    {
 	      /* This function must have external linkage, as
 		 otherwise DECL_INTERFACE_KNOWN would have been

gcc/testsuite/g++.dg/cpp0x/defaulted48.C

+// PR c++/60108
+// { dg-require-effective-target c++11 }
+
+template<int> struct A
+{
+  virtual ~A();
+};
+
+template<typename> struct B : A<0>, A<1>
+{
+  ~B() = default;
+};
+
+struct C : B<bool>
+{
+  C() {}
+};