about summary refs log tree commit diff
path: root/sysdeps/x86_64/fpu/s_fmax.S
diff options
context:
space:
mode:
authorAndreas Jaeger <aj@suse.de>2002-07-06 15:07:30 +0000
committerAndreas Jaeger <aj@suse.de>2002-07-06 15:07:30 +0000
commit9359218f0fa991ee10df00cfdc4fc1822c9d9597 (patch)
tree9850632a6d8c6587f9b2adc0288b4994ea87c2ea /sysdeps/x86_64/fpu/s_fmax.S
parentaeb25823d8ef62566bef76351cc318673f3f36c7 (diff)
downloadglibc-9359218f0fa991ee10df00cfdc4fc1822c9d9597.tar.gz
glibc-9359218f0fa991ee10df00cfdc4fc1822c9d9597.tar.xz
glibc-9359218f0fa991ee10df00cfdc4fc1822c9d9597.zip
Update.
2002-07-06  Andreas Jaeger  <aj@suse.de>

	* sysdeps/x86_64/fpu/bits/mathinline.h: New.
	* sysdeps/x86_64/fpu/s_copysign.S: New.
	* sysdeps/x86_64/fpu/s_copysignf.S: New.
	* sysdeps/x86_64/fpu/s_copysignl.S: New.
	* sysdeps/x86_64/fpu/s_finitel.S: New.
	* sysdeps/x86_64/fpu/s_fmax.S: New.
	* sysdeps/x86_64/fpu/s_fmaxf.S: New.
	* sysdeps/x86_64/fpu/s_fmaxl.S: New.
	* sysdeps/x86_64/fpu/s_fmin.S: New.
	* sysdeps/x86_64/fpu/s_fminf.S: New.
	* sysdeps/x86_64/fpu/s_fminl.S: New.
Diffstat (limited to 'sysdeps/x86_64/fpu/s_fmax.S')
-rw-r--r--sysdeps/x86_64/fpu/s_fmax.S36
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_fmax.S b/sysdeps/x86_64/fpu/s_fmax.S
new file mode 100644
index 0000000000..b55d6f84ce
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_fmax.S
@@ -0,0 +1,36 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmax)
+	ucomisd	%xmm0, %xmm1
+	jp	1f		// jump if unordered
+	maxsd	%xmm1, %xmm0
+	jmp	2f
+
+1:	ucomisd	%xmm1, %xmm1	// Is xmm1 a NaN?
+	jp	2f		// then return xmm0
+	movsd	%xmm1, %xmm0	// otherwise return xmm1
+
+2:	ret
+END(__fmax)
+weak_alias (__fmax, fmax)