mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 21:20:18 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
57 lines
1.6 KiB
ArmAsm
57 lines
1.6 KiB
ArmAsm
/* isnan(). PowerPC64 version.
|
|
Copyright (C) 2008-2018 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 <sysdep.h>
|
|
#include <math_ldbl_opt.h>
|
|
|
|
/* int __isnan(x) */
|
|
.machine power4
|
|
ENTRY_TOCLESS (__isnan, 4)
|
|
CALL_MCOUNT 0
|
|
mffs fp0
|
|
mtfsb0 4*cr6+lt /* reset_fpscr_bit (FPSCR_VE) */
|
|
fcmpu cr7,fp1,fp1
|
|
mtfsf 255,fp0
|
|
li r3,0
|
|
beqlr+ cr7 /* (x == x) then not a NAN */
|
|
li r3,1 /* else must be a NAN */
|
|
blr
|
|
END (__isnan)
|
|
|
|
hidden_def (__isnan)
|
|
weak_alias (__isnan, isnan)
|
|
|
|
/* It turns out that the 'double' version will also always work for
|
|
single-precision. */
|
|
strong_alias (__isnan, __isnanf)
|
|
hidden_def (__isnanf)
|
|
weak_alias (__isnanf, isnanf)
|
|
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__isnan, __isnanl)
|
|
weak_alias (__isnan, isnanl)
|
|
#endif
|
|
|
|
#if !IS_IN (libm)
|
|
# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
|
|
compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
|
|
compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
|
|
# endif
|
|
#endif
|
|
|