--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/epiphany/epiphany_intrinsics.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,27 @@
+/* Epiphany intrinsic functions
+   Copyright (C) 2011-2017 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define __builtin_epiphany_fmadd(a, b, c) __builtin_fmaf (b, c, a)
+#define __builtin_epiphany_fmsub(a, b, c) __builtin_fmaf (-(b), c, a)