1/* llrint(), sparc32 v9 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 (__llrint_vis3)
30	sethi	%hi(TWO_FIFTYTWO), %o2
31	sllx	%o0, 32, %o0
32
33	or	%o0, %o1, %o0
34	fzero	ZERO
35
36	movxtod	%o0, %f0
37	sllx	%o2, 32, %o2
38	fnegd	ZERO, SIGN_BIT
39
40	movxtod	%o2, %f16
41	fabsd	%f0, %f14
42
43	fcmpd	%fcc3, %f14, %f16
44
45	fmovduge %fcc3, ZERO, %f16
46	fand	%f0, SIGN_BIT, SIGN_BIT
47
48	for	%f16, SIGN_BIT, %f16
49	faddd	%f0, %f16, %f6
50	fsubd	%f6, %f16, %f0
51	fabsd	%f0, %f0
52	for	%f0, SIGN_BIT, %f0
53	fdtox	%f0, %f4
54	movstouw %f4, %o0
55	retl
56	 movstouw %f5, %o1
57END (__llrint_vis3)
58