re PR c++/57041 (ICE in lookup_field_1, at cp/search.c:376 (with dot-prefixed…

re PR c++/57041 (ICE in lookup_field_1, at cp/search.c:376 (with dot-prefixed structure initialisation))

	PR c++/57041
	* decl.c (reshape_init_class): Handle error_mark_node.

From-SVN: r198844

gcc/cp/ChangeLog

 2013-05-13  Jason Merrill  <jason@redhat.com>
 
+	PR c++/57041
+	* decl.c (reshape_init_class): Handle error_mark_node.
+
 	PR c++/57254
 	* typeck.c (merge_types): Propagate ref-qualifier
 	in METHOD_TYPE case.

gcc/cp/decl.c

@@ -5200,6 +5200,9 @@ reshape_init_class (tree type, reshape_iter *d, bool first_initializer_p,
       /* Handle designated initializers, as an extension.  */
       if (d->cur->index)
 	{
+	  if (d->cur->index == error_mark_node)
+	    return error_mark_node;
+
 	  if (TREE_CODE (d->cur->index) == INTEGER_CST)
 	    {
 	      if (complain & tf_error)

gcc/testsuite/g++.dg/ext/desig6.C

+// PR c++/57041
+// { dg-options "-std=gnu++11" }
+// { dg-prune-output "error:" }
+
+template<typename T>
+union u {
+  T a;
+  char b;
+};
+
+template<typename T>
+u<T> make_u(T t) {
+  return { .a = t };
+}
+
+int main() {
+  return make_u<int>(1).a;
+}