/* finite().  PowerPC32/POWER7 version.

   Copyright (C) 2010-2018 Free Software Foundation, Inc.

   Contributed by Luis Machado <luisgpm@br.ibm.com>.

   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 __finite(x)  */

	.section    .rodata.cst8,"aM",@progbits,8

	.align 3

.LC0:   /* 1.0 */

	.quad	    0x3ff0000000000000

	.section    ".text"

	.type	    __finite, @function

	.machine    power7

ENTRY (__finite)

#ifdef SHARED

	mflr	r11

	cfi_register(lr,r11)

	SETUP_GOT_ACCESS(r9,got_label)

	addis	r9,r9,.LC0-got_label@ha

	lfd	fp0,.LC0-got_label@l(r9)

	mtlr	r11

	cfi_same_value (lr)

#else

	lis	r9,.LC0@ha

	lfd	fp0,.LC0@l(r9)

#endif

	ftdiv	cr7,fp1,fp0

	li	r3,1

	bflr	30

	/* We have -INF/+INF/NaN or a denormal.  */

	stwu	r1,-16(r1)    /* Allocate stack space.  */

	stfd    fp1,8(r1)     /* Transfer FP to GPR's.  */

	ori	2,2,0	      /* Force a new dispatch group.  */

	lhz	r0,8+HISHORT(r1) /* Fetch the upper 16 bits of the FP value

				    (biased exponent and sign bit).  */

	clrlwi	r0,r0,17      /* r0 = abs(r0).  */

	addi	r1,r1,16      /* Reset the stack pointer.  */

	cmpwi	cr7,r0,0x7ff0 /* r4 == 0x7ff0?.  */

	bltlr	cr7	      /* LT means we have a denormal.  */

	li	r3,0

	blr

	END (__finite)

hidden_def (__finite)

weak_alias (__finite, finite)

/* It turns out that the 'double' version will also always work for

   single-precision.  */

strong_alias (__finite, __finitef)

hidden_def (__finitef)

weak_alias (__finitef, finitef)

#ifdef NO_LONG_DOUBLE

strong_alias (__finite, __finitel)

weak_alias (__finite, finitel)

#endif

#if IS_IN (libm)

# if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)

compat_symbol (libm, finite, finitel, GLIBC_2_0)

# endif

# if LONG_DOUBLE_COMPAT (libm, GLIBC_2_1)

compat_symbol (libm, __finite, __finitel, GLIBC_2_1)

# endif

#else

# if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)

compat_symbol (libc, __finite, __finitel, GLIBC_2_0);

compat_symbol (libc, finite, finitel, GLIBC_2_0);

# endif

#endif