re PR c++/58672 ([c++11] ICE with thread_local and variable of broken class)

	PR c++/58672
	* decl2.c (handle_tls_init): Handle null init fn.

From-SVN: r207363

gcc/cp/ChangeLog

 2014-01-31  Jason Merrill  <jason@redhat.com>
 
+	PR c++/58672
+	* decl2.c (handle_tls_init): Handle null init fn.
+
 	PR c++/55800
 	* decl2.c (get_tls_init_fn): Copy DECL_EXTERNAL from the variable.
 

gcc/cp/decl2.c

@@ -4036,6 +4036,8 @@ handle_tls_init (void)
       if (TREE_PUBLIC (var))
 	{
           tree single_init_fn = get_tls_init_fn (var);
+	  if (single_init_fn == NULL_TREE)
+	    continue;
 	  cgraph_node *alias
 	    = cgraph_same_body_alias (cgraph_get_create_node (fn),
 				      single_init_fn, fn);

gcc/testsuite/g++.dg/tls/thread_local-ice2.C

+// PR c++/58672
+// { dg-options "-std=c++11" }
+// { dg-require-effective-target tls }
+
+struct A
+{
+  A(int);
+  i;				// { dg-error "" }
+};
+
+thread_local A a(0);