/* isnan().  PowerPC32 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

EALIGN (__isnan, 4, 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.  */

#ifndef __isnan

strong_alias (__isnan, __isnanf)

hidden_def (__isnanf)

weak_alias (__isnanf, isnanf)

#endif

#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