ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL w/o DECL_NAME.

	* ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL
	w/o DECL_NAME.

From-SVN: r232179

gcc/ChangeLog

+2016-01-09  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL
+	w/o DECL_NAME.
+
 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/69167

gcc/ipa-icf.c

@@ -3400,7 +3400,8 @@ sem_item_optimizer::merge_classes (unsigned int prev_class_count)
 
 	sem_item *source = c->members[0];
 
-	if (MAIN_NAME_P (DECL_NAME (source->decl)))
+	if (DECL_NAME (source->decl)
+	    && MAIN_NAME_P (DECL_NAME (source->decl)))
 	  /* If merge via wrappers, picking main as the target can be
 	     problematic.  */
 	  source = c->members[1];