t_vis.c revision 1.2 
1/*	$NetBSD: t_vis.c,v 1.2 2025/11/16 12:43:25 nia Exp $	*/
2
3/*-
4 * Copyright (c) 2025 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nia Alarie.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <atf-c.h>
33#include <string.h>
34#include <stdio.h>
35#include "vis_types.h"
36#include "vis_proto.h"
37
38ATF_TC(vis_test_addsub);
39
40ATF_TC_HEAD(vis_test_addsub, tc)
41{
42	atf_tc_set_md_var(tc, "descr", "Test 32-bit packed add/subtract");
43}
44
45ATF_TC_BODY(vis_test_addsub, tc)
46{
47	vis_d64 v1, v2, v3;
48	vis_f32 f1, f2;
49	vis_u32 u1, u2;
50
51	v1 = vis_to_double(8, 16);
52	v2 = vis_to_double(16, 8);
53
54	v3 = vis_fpadd32(v1, v2);
55
56	f1 = vis_read_lo(v3);
57	memcpy(&u1, &f1, sizeof(f1));
58	f2 = vis_read_hi(v3);
59	memcpy(&u2, &f2, sizeof(f2));
60
61	ATF_REQUIRE(u1 == 24 && u2 == 24);
62
63	v2 = vis_to_double(4, 4);
64	v3 = vis_fpsub32(v3, v2);
65
66	f1 = vis_read_lo(v3);
67	memcpy(&u1, &f1, sizeof(f1));
68	f2 = vis_read_hi(v3);
69	memcpy(&u2, &f2, sizeof(f2));
70
71	ATF_REQUIRE(u1 == 20 && u2 == 20);
72}
73
74ATF_TC(vis_test_bitwise);
75
76ATF_TC_HEAD(vis_test_bitwise, tc)
77{
78	atf_tc_set_md_var(tc, "descr", "Test 32-bit packed bitwise");
79}
80
81ATF_TC_BODY(vis_test_bitwise, tc)
82{
83	static vis_u8 testbytes1[8] = { 1, 0, 1, 1, 1, 0, 1, 1 };
84	static vis_u8 testbytes2[8] = { 1, 1, 0, 1, 1, 1, 0, 1 };
85	static vis_u8 test_and[8] = { 1, 0, 0, 1, 1, 0, 0, 1 };
86	static vis_u8 test_or[8] = { 1, 1, 1, 1, 1, 1, 1, 1 };
87	static vis_u8 test_zero[8] = { 0 };
88	static vis_u64 test_ones = 0xffffffffffffffff;
89	double v1, v2, v3;
90
91	memcpy(&v1, testbytes1, sizeof(v1));
92	memcpy(&v2, testbytes2, sizeof(v2));
93
94	v3 = vis_fand(v1, v2);
95
96	ATF_REQUIRE(memcmp(&v3, test_and, sizeof(v3)) == 0);
97
98	v3 = vis_fone();
99
100	ATF_REQUIRE(memcmp(&v3, &test_ones, sizeof(v3)) == 0);
101
102	v3 = vis_for(v1, v2);
103
104	ATF_REQUIRE(memcmp(&v3, test_or, sizeof(v3)) == 0);
105
106	v3 = vis_fzero();
107
108	ATF_REQUIRE(memcmp(&v3, test_zero, sizeof(v3)) == 0);
109}
110
111ATF_TC(vis_test_fcmpeq16);
112
113ATF_TC_HEAD(vis_test_fcmpeq16, tc)
114{
115	atf_tc_set_md_var(tc, "descr", "Test 16-bit packed compare");
116}
117
118ATF_TC_BODY(vis_test_fcmpeq16, tc)
119{
120	static vis_u16 testshort1[4] = { 16000, 16000, 16000, 16000 };
121	static vis_u16 testshort2[4] = { 32000, 16000, 32000, 16000 };
122	static vis_u16 testshort3[4] = { 48000, 48000, 48000, 48000 };
123	vis_d64 v1, v2, v3;
124
125	memcpy(&v1, testshort1, sizeof(v1));
126	memcpy(&v2, testshort2, sizeof(v2));
127	memcpy(&v3, testshort3, sizeof(v3));
128
129	ATF_REQUIRE((!!vis_fcmpeq16(v1, v2)) != 0);
130	ATF_REQUIRE((!!vis_fcmpeq16(v1, v3)) == 0);
131	ATF_REQUIRE((!!vis_fcmpne16(v1, v3)) != 0);
132}
133
134ATF_TC(vis_test_fcmpeq32);
135
136ATF_TC_HEAD(vis_test_fcmpeq32, tc)
137{
138	atf_tc_set_md_var(tc, "descr", "Test 32-bit packed compare");
139}
140
141ATF_TC_BODY(vis_test_fcmpeq32, tc)
142{
143	static vis_u32 testlong1[2] = { 16000, 16000 };
144	static vis_u32 testlong2[2] = { 32000, 16000 };
145	static vis_u32 testlong3[2] = { 48000, 48000 };
146	vis_d64 v1, v2, v3;
147
148	memcpy(&v1, testlong1, sizeof(v1));
149	memcpy(&v2, testlong2, sizeof(v2));
150	memcpy(&v3, testlong3, sizeof(v3));
151
152	ATF_REQUIRE((!!vis_fcmpeq32(v1, v2)) != 0);
153	ATF_REQUIRE((!!vis_fcmpeq32(v1, v3)) == 0);
154	ATF_REQUIRE((!!vis_fcmpne32(v1, v3)) != 0);
155}
156
157ATF_TP_ADD_TCS(tp)
158{
159	ATF_TP_ADD_TC(tp, vis_test_addsub);
160	ATF_TP_ADD_TC(tp, vis_test_bitwise);
161	ATF_TP_ADD_TC(tp, vis_test_fcmpeq16);
162	ATF_TP_ADD_TC(tp, vis_test_fcmpeq32);
163
164	return atf_no_error();
165}
166