mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
45 lines
1.3 KiB
ArmAsm
45 lines
1.3 KiB
ArmAsm
/* isnanf(). PowerPC32 version.
|
|
Copyright (C) 2008-2013 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 __isnanf(x) */
|
|
.machine power6
|
|
EALIGN (__isnanf, 4, 0)
|
|
stwu r1,-32(r1)
|
|
cfi_adjust_cfa_offset (32)
|
|
ori r1,r1,0
|
|
stfs fp1,24(r1) /* copy FPR to GPR */
|
|
ori r1,r1,0
|
|
lwz r4,24(r1)
|
|
lis r0,0x7f80 /* const long r0 0x7f800000 */
|
|
clrlwi r4,r4,1 /* x = fabs(x) */
|
|
cmpw cr7,r4,r0 /* if (fabs(x) =< inf) */
|
|
li r3,0 /* then return 0 */
|
|
addi r1,r1,32
|
|
cfi_adjust_cfa_offset (-32)
|
|
blelr+ cr7
|
|
L(NaN):
|
|
li r3,1 /* else return 1 */
|
|
blr
|
|
END (__isnanf)
|
|
|
|
hidden_def (__isnanf)
|
|
weak_alias (__isnanf, isnanf)
|