/* Round to int floating-point values.  PowerPC64 version.

   Copyright (C) 2004-2018 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/>.  */

/* This has been coded in assembler because GCC makes such a mess of it

   when it's coded in C.  */

#include <sysdep.h>

#include <math_ldbl_opt.h>

#include <libm-alias-double.h>

	.section	".toc","aw"

.LC0:	/* 2**52 */

	.tc FD_43300000_0[TC],0x4330000000000000

	.section	".text"

ENTRY (__rint, 4)

	CALL_MCOUNT 0

	lfd	fp13,.LC0@toc(2)

	fabs	fp0,fp1

	fsub	fp12,fp13,fp13	/* generate 0.0  */

	fcmpu	cr7,fp0,fp13	/* if (fabs(x) > TWO52)  */

	fcmpu	cr6,fp1,fp12	/* if (x > 0.0)  */

	bnl	cr7,.L10

	bng	cr6,.L4

	fadd	fp1,fp1,fp13	/* x+= TWO52;  */

	fsub	fp1,fp1,fp13	/* x-= TWO52;  */

	fabs	fp1,fp1		/* if (x == 0.0)  */

	blr			/* x = 0.0; */

.L4:

	bnllr	cr6		/* if (x < 0.0)  */

	fsub	fp1,fp1,fp13	/* x-= TWO52;  */

	fadd	fp1,fp1,fp13	/* x+= TWO52;  */

	fnabs	fp1,fp1		/* if (x == 0.0)  */

	blr			/* x = -0.0; */

.L10:

	/* Ensure sNaN input is converted to qNaN.  */

	fcmpu	cr7,fp1,fp1

	beqlr	cr7

	fadd	fp1,fp1,fp1

	blr

	END (__rint)

libm_alias_double (__rint, rint)