1/* lrint(), sparc64 vis3 version.
2   Copyright (C) 2012-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#include <sysdep.h>
20
21	/* VIS instructions are used to facilitate the formation of
22	   easier constants, and the propagation of the sign bit.  */
23
24#define TWO_FIFTYTWO	0x43300000		/* 2**52 */
25
26#define ZERO		%f10			/* 0.0 */
27#define SIGN_BIT	%f12			/* -0.0 */
28
29ENTRY (__lrint_vis3)
30	sethi	%hi(TWO_FIFTYTWO), %o2
31	sllx	%o2, 32, %o2
32	fzero	ZERO
33
34	fnegd	ZERO, SIGN_BIT
35	movxtod	%o2, %f16
36	fabsd	%f0, %f14
37
38	fcmpd	%fcc3, %f14, %f16
39
40	fmovduge %fcc3, ZERO, %f16
41	fand	%f0, SIGN_BIT, SIGN_BIT
42
43	for	%f16, SIGN_BIT, %f16
44	faddd	%f0, %f16, %f6
45	fsubd	%f6, %f16, %f0
46	fabsd	%f0, %f0
47	for	%f0, SIGN_BIT, %f0
48	fdtox	%f0, %f4
49	retl
50	 movdtox %f4, %o0
51END (__lrint_vis3)
52