--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/gcc-interface/ada-builtin-types.def	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,25 @@
+/* This file contains the type definitions for the builtins exclusively
+   used in the GNU Ada compiler.
+
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* See builtin-types.def for details.  */
+
+DEF_FUNCTION_TYPE_1 (BT_FN_BOOL_BOOL, BT_BOOL, BT_BOOL)
+DEF_FUNCTION_TYPE_2 (BT_FN_BOOL_BOOL_BOOL, BT_BOOL, BT_BOOL, BT_BOOL)