re PR c++/58639 (ICE on self-referential struct member)

	PR c++/58639
	* call.c (build_aggr_conv): Reject value-initialization of reference.

From-SVN: r207166

gcc/cp/ChangeLog

 2014-01-27  Jason Merrill  <jason@redhat.com>
 
+	PR c++/58639
+	* call.c (build_aggr_conv): Reject value-initialization of reference.
+
 	PR c++/58812
 	PR c++/58651
 	* call.c (convert_like_real): Give helpful error about excess braces

gcc/cp/call.c

@@ -894,6 +894,9 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
 
       if (i < CONSTRUCTOR_NELTS (ctor))
 	val = CONSTRUCTOR_ELT (ctor, i)->value;
+      else if (TREE_CODE (ftype) == REFERENCE_TYPE)
+	/* Value-initialization of reference is ill-formed.  */
+	return NULL;
       else
 	{
 	  if (empty_ctor == NULL_TREE)

gcc/testsuite/g++.dg/cpp0x/initlist78.C

+// PR c++/58639
+// { dg-require-effective-target c++11 }
+
+struct node {
+  node &parent;
+};
+
+struct vector {
+  node n;
+};
+
+vector v({});			// { dg-error "" }