lto-symtab.c (lto_symtab_merge_decls_2): Silence warning on DECL_ARTIFICAL symbols.

	* lto-symtab.c (lto_symtab_merge_decls_2): Silence warning on
	DECL_ARTIFICAL symbols.

From-SVN: r221770

gcc/lto/ChangeLog

 2015-03-26  Jan Hubicka  <hubicka@ucw.cz>
 
+	* lto-symtab.c (lto_symtab_merge_decls_2): Silence warning on
+	DECL_ARTIFICAL symbols.
+
+2015-03-26  Jan Hubicka  <hubicka@ucw.cz>
+
 	PR lto/65536
 	* lto.c (unify_scc): Revert location cache when unification
 	suceeded.

gcc/lto/lto-symtab.c

@@ -473,7 +473,8 @@ lto_symtab_merge_decls_2 (symtab_node *first, bool diagnosed_p)
     if (TREE_PUBLIC (e->decl))
       {
 	if (!lto_symtab_merge (prevailing, e)
-	    && !diagnosed_p)
+	    && !diagnosed_p
+	    && !DECL_ARTIFICIAL (e->decl))
 	  mismatches.safe_push (e->decl);
       }
   if (mismatches.is_empty ())