re PR c++/65071 (ICE on valid, sizeof...() of template template parameter pack in return type)

/cp
2015-07-14  Andrea Azzarone  <azzaronea@gmail.com>

	PR c++/65071
	* parser.c (cp_parser_sizeof_pack): Also consider template template
	parameters.

/testsuite
2015-07-14  Andrea Azzarone  <azzaronea@gmail.com>

	PR c++/65071
	* g++.dg/cpp0x/vt-65071.C: New.

From-SVN: r225793

gcc/cp/ChangeLog

+2015-07-14  Andrea Azzarone  <azzaronea@gmail.com>
+
+	PR c++/65071
+	* parser.c (cp_parser_sizeof_pack): Also consider template template
+	parameters.
+
 2015-07-14  Jason Merrill  <jason@redhat.com>
 
 	* call.c (build_new_method_call_1): Call reshape_init.

gcc/cp/parser.c

@@ -24468,7 +24468,7 @@ cp_parser_sizeof_pack (cp_parser *parser)
   if (expr == error_mark_node)
     cp_parser_name_lookup_error (parser, name, expr, NLE_NULL,
 				 token->location);
-  if (TREE_CODE (expr) == TYPE_DECL)
+  if (TREE_CODE (expr) == TYPE_DECL || TREE_CODE (expr) == TEMPLATE_DECL)
     expr = TREE_TYPE (expr);
   else if (TREE_CODE (expr) == CONST_DECL)
     expr = DECL_INITIAL (expr);

gcc/testsuite/ChangeLog

+2015-07-14  Andrea Azzarone  <azzaronea@gmail.com>
+
+	PR c++/65071
+	* g++.dg/cpp0x/vt-65071.C: New.
+
 2015-07-14  Sandra Loosemore  <sandra@codesourcery.com>
 	    Cesar Philippidis  <cesar@codesourcery.com>
 	    Chung-Lin Tang  <cltang@codesourcery.com>

gcc/testsuite/g++.dg/cpp0x/vt-65071.C

+// PR c++/65071
+// { dg-do compile { target c++11 } }
+
+template<int> struct S {};
+
+template<template<int> class... T, int N>
+S<sizeof...(T)> foo(T<N>...);
+
+auto x = foo(S<2>{});