re PR ipa/69589 (ICE in initialize_node_lattices, at ipa-cp.c:971)

	PR lto/69589
	* tree.c (need_assembler_name_p): Only record main variant type names.

From-SVN: r234112

gcc/ChangeLog

+2016-03-10  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR lto/69589
+	* tree.c (need_assembler_name_p): Only record main variant type names.
+
 2016-03-10  Christophe Lyon  <christophe.lyon@linaro.org>
 
 	PR target/70113.

gcc/tree.c

@@ -5329,6 +5329,7 @@ need_assembler_name_p (tree decl)
       && TREE_CODE (decl) == TYPE_DECL
       && DECL_NAME (decl)
       && decl == TYPE_NAME (TREE_TYPE (decl))
+      && TYPE_MAIN_VARIANT (TREE_TYPE (decl)) == TREE_TYPE (decl)
       && !TYPE_ARTIFICIAL (TREE_TYPE (decl))
       && (type_with_linkage_p (TREE_TYPE (decl))
 	  || TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE)