1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/libm-i387/i686/s_fmaxf.S b/sysdeps/libm-i387/i686/s_fmaxf.S
new file mode 100644
index 0000000000..ad948d0b62
--- /dev/null
+++ b/sysdeps/libm-i387/i686/s_fmaxf.S
@@ -0,0 +1,40 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmaxf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fxch
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fmaxf)
+weak_alias (__fmaxf, fmaxf)