glibc/sysdeps/ia64/fpu/s_isnan.S
Paul Eggert 581c785bf3 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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

50 lines
1.2 KiB
ArmAsm

/* Test for NaN
Copyright (C) 2000-2022 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
<https://www.gnu.org/licenses/>. */
/*
* isnan(x) returns 1 is x is nan, else 0;
*/
#include <sysdep.h>
#undef ret
ENTRY (__isnan)
{
.mfi
fclass.m p6, p7 = farg0, @nat | @qnan | @snan
;;
}
{
.mib
(p6) mov ret0 = 1
(p7) mov ret0 = 0
br.ret.sptk.many rp
}
END (__isnan)
strong_alias (__isnan, __isnanf)
strong_alias (__isnan, __isnanl)
weak_alias (__isnan, isnan)
weak_alias (__isnanf, isnanf)
weak_alias (__isnanl, isnanl)
hidden_def (__isnan)
hidden_def (__isnanf)
hidden_def (__isnanl)