re PR c++/58674 ([c++11] ICE with template using declaration)

/cp
2014-01-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58674
	* pt.c (instantiate_template_1): Check for error_mark_node the second
	argument too.

/testsuite
2014-01-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58674
	* g++.dg/cpp0x/pr58674.C: New.

From-SVN: r207275

gcc/cp/ChangeLog

+2014-01-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/58674
+	* pt.c (instantiate_template_1): Check for error_mark_node the second
+	argument too.
+
 2014-01-29  Jason Merrill  <jason@redhat.com>
 
 	PR c++/59916

gcc/cp/pt.c

@@ -15258,6 +15258,9 @@ instantiate_template_1 (tree tmpl, tree orig_args, tsubst_flags_t complain)
       return NULL_TREE;
     }
 
+  if (targ_ptr == error_mark_node)
+    return error_mark_node;
+
   /* Check to see if we already have this specialization.  */
   gen_tmpl = most_general_template (tmpl);
   if (tmpl != gen_tmpl)

gcc/testsuite/ChangeLog

+2014-01-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/58674
+	* g++.dg/cpp0x/pr58674.C: New.
+
 2014-01-28  Kirill Yukhin  <kirill.yukhin@intel.com>
 
         PR target/59617

gcc/testsuite/g++.dg/cpp0x/pr58674.C

+// PR c++/58674
+// { dg-do compile { target c++11 } }
+
+template<int> struct A {};
+
+template<int N> using B = A<N>;
+
+template<typename T> struct C
+{
+  B<T::i> b;  // { dg-error "not usable" }
+};
+
+struct X
+{
+  static const int i;
+};
+
+C<X> c;