/* 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 power5

ENTRY_TOCLESS (__isnan, 4)

	CALL_MCOUNT 0

	stfd	fp1,-8(r1)	/* copy FPR to GPR */

	lis	r0,0x7ff0

	nop			/* insure the following is in a different */

	nop			/* dispatch group */

	ld	r4,-8(r1)

	sldi	r0,r0,32	/* const long r0 0x7ff00000 00000000 */

	clrldi	r4,r4,1		/* x = fabs(x) */

	cmpd	cr7,r4,r0	/* if (fabs(x) <= inf) */

	li	r3,0		/* then return 0 */

	blelr+	cr7

	li	r3,1		/* else return 1 */

	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