1 files changed, 45 insertions, 0 deletions
diff --git a/ports/sysdeps/aarch64/fpu/s_fma.c b/ports/sysdeps/aarch64/fpu/s_fma.c
new file mode 100644
index 0000000000..b12ade4e40
--- /dev/null
+++ b/ports/sysdeps/aarch64/fpu/s_fma.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 1996-2013 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+
+#ifndef FUNC
+# define FUNC fma
+#endif
+
+#ifndef TYPE
+# define TYPE double
+# define REGS "d"
+#else
+# ifndef REGS
+#  error REGS not defined
+# endif
+#endif
+
+#define __CONCATX(a,b) __CONCAT(a,b)
+
+TYPE
+__CONCATX(__,FUNC) (TYPE x, TYPE y, TYPE z)
+{
+  TYPE result;
+  asm ( "fmadd" "\t%" REGS "0, %" REGS "1, %" REGS "2, %" REGS "3"
+        : "=w" (result) : "w" (x), "w" (y), "w" (z) );
+  return result;
+}
+
+weak_alias (__CONCATX(__,FUNC), FUNC)