glibc/sysdeps/i386/i686/fpu/s_fminl.S
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

60 lines
1.5 KiB
ArmAsm

/* Compute minimum of two numbers, regarding NaN as missing argument.
Copyright (C) 1997-2021 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 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
<https://www.gnu.org/licenses/>. */
#include <libm-alias-ldouble.h>
#include <sysdep.h>
.text
ENTRY(__fminl)
fldt 4(%esp) // x
fldt 16(%esp) // x : y
fucomi %st(1), %st
jp 2f
fcmovnb %st(1), %st
fstp %st(1)
ret
2: // Unordered.
fucomi %st(0), %st
jp 3f
// st(1) is a NaN; st(0) is not. Test if st(1) is signaling.
testb $0x40, 11(%esp)
jz 4f
fstp %st(1)
ret
3: // st(0) is a NaN; st(1) may or may not be.
fxch
fucomi %st(0), %st
jp 4f
// st(1) is a NaN; st(0) is not. Test if st(1) is signaling.
testb $0x40, 23(%esp)
jz 4f
fstp %st(1)
ret
4: // Both arguments are NaNs, or one is a signaling NaN.
faddp
ret
END(__fminl)
libm_alias_ldouble (__fmin, fmin)