1/* llrintf(), 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_TWENTYTHREE	0x4b000000		/* 2**23 */
25
26#define ZERO		%f10			/* 0.0 */
27#define SIGN_BIT	%f12			/* -0.0 */
28
29ENTRY (__llrintf_vis3)
30	movwtos	%o0, %f1
31	sethi	%hi(TWO_TWENTYTHREE), %o2
32	fzeros	ZERO
33
34	fnegs	ZERO, SIGN_BIT
35
36	movwtos	%o2, %f16
37	fabss	%f1, %f14
38
39	fcmps	%fcc3, %f14, %f16
40
41	fmovsuge %fcc3, ZERO, %f16
42	fands	%f1, SIGN_BIT, SIGN_BIT
43
44	fors	%f16, SIGN_BIT, %f16
45	fadds	%f1, %f16, %f5
46	fsubs	%f5, %f16, %f0
47	fabss	%f0, %f0
48	fors	%f0, SIGN_BIT, %f0
49	fstox	%f0, %f4
50	movstouw %f4, %o0
51	retl
52	 movstouw %f5, %o1
53END (__llrintf_vis3)
54