xref: /netbsd-src/tests/include/sys/t_bitops.c (revision 8e33eff89e26cf71871ead62f0d5063e1313c33a)
1 /*	$NetBSD: t_bitops.c,v 1.21 2023/07/13 20:39:24 riastradh Exp $ */
2 
3 /*-
4  * Copyright (c) 2011, 2012 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas and Jukka Ruohonen.
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 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_bitops.c,v 1.21 2023/07/13 20:39:24 riastradh Exp $");
33 
34 #include <atf-c.h>
35 
36 #include <sys/cdefs.h>
37 #include <sys/bitops.h>
38 
39 #include <math.h>
40 #include <inttypes.h>
41 #include <stdlib.h>
42 #include <string.h>
43 
44 static const struct {
45 	uint32_t	val;
46 	int		ffs;
47 	int		fls;
48 } bits[] = {
49 
50 	{ 0x00, 0, 0 }, { 0x01, 1, 1 },	{ 0x02, 2, 2 },	{ 0x03, 1, 2 },
51 	{ 0x04, 3, 3 }, { 0x05, 1, 3 },	{ 0x06, 2, 3 },	{ 0x07, 1, 3 },
52 	{ 0x08, 4, 4 }, { 0x09, 1, 4 },	{ 0x0A, 2, 4 },	{ 0x0B, 1, 4 },
53 	{ 0x0C, 3, 4 }, { 0x0D, 1, 4 },	{ 0x0E, 2, 4 },	{ 0x0F, 1, 4 },
54 
55 	{ 0x10, 5, 5 },	{ 0x11, 1, 5 },	{ 0x12, 2, 5 },	{ 0x13, 1, 5 },
56 	{ 0x14, 3, 5 },	{ 0x15, 1, 5 },	{ 0x16, 2, 5 },	{ 0x17, 1, 5 },
57 	{ 0x18, 4, 5 },	{ 0x19, 1, 5 },	{ 0x1A, 2, 5 },	{ 0x1B, 1, 5 },
58 	{ 0x1C, 3, 5 },	{ 0x1D, 1, 5 },	{ 0x1E, 2, 5 },	{ 0x1F, 1, 5 },
59 
60 	{ 0xF0, 5, 8 },	{ 0xF1, 1, 8 },	{ 0xF2, 2, 8 },	{ 0xF3, 1, 8 },
61 	{ 0xF4, 3, 8 },	{ 0xF5, 1, 8 },	{ 0xF6, 2, 8 },	{ 0xF7, 1, 8 },
62 	{ 0xF8, 4, 8 },	{ 0xF9, 1, 8 },	{ 0xFA, 2, 8 },	{ 0xFB, 1, 8 },
63 	{ 0xFC, 3, 8 },	{ 0xFD, 1, 8 },	{ 0xFE, 2, 8 },	{ 0xFF, 1, 8 },
64 
65 };
66 
67 ATF_TC(bitmap_basic);
68 ATF_TC_HEAD(bitmap_basic, tc)
69 {
70 	atf_tc_set_md_var(tc, "descr", "A basic test of __BITMAP_*");
71 }
72 
73 ATF_TC_BODY(bitmap_basic, tc)
74 {
75 	size_t n;
76 
77 	__BITMAP_TYPE(, uint32_t, 65536) bm;
78 	__BITMAP_ZERO(&bm);
79 
80 	ATF_CHECK_EQ_MSG((n = __BITMAP_SIZE(uint32_t, 65536)), 2048,
81 	    "n=%zu", n);
82 
83 	ATF_CHECK_EQ_MSG((n = __BITMAP_SHIFT(uint32_t)), 5, "n=%zu", n);
84 
85 	ATF_CHECK_EQ_MSG((n = __BITMAP_MASK(uint32_t)), 31, "n=%zu", n);
86 
87 	for (size_t i = 0; i < 65536; i += 2)
88 		__BITMAP_SET(i, &bm);
89 
90 	for (size_t i = 0; i < 2048; i++) {
91 		ATF_CHECK_EQ_MSG(bm._b[i], 0x55555555, "bm._b[%zu]=0x%"PRIx32,
92 		    i, bm._b[i]);
93 	}
94 
95 	for (size_t i = 0; i < 65536; i++)
96 		if (i & 1)
97 			ATF_CHECK_MSG(!__BITMAP_ISSET(i, &bm), "i=%zu", i);
98 		else {
99 			ATF_CHECK_MSG(__BITMAP_ISSET(i, &bm), "i=%zu", i);
100 			__BITMAP_CLR(i, &bm);
101 		}
102 
103 	for (size_t i = 0; i < 65536; i += 2)
104 		ATF_CHECK_MSG(!__BITMAP_ISSET(i, &bm), "i=%zu", i);
105 }
106 
107 ATF_TC(fast_divide32);
108 ATF_TC_HEAD(fast_divide32, tc)
109 {
110 	atf_tc_set_md_var(tc, "descr", "A basic test of fast_divide32(3)");
111 }
112 
113 ATF_TC_BODY(fast_divide32, tc)
114 {
115 	uint32_t a, b, q, r, m;
116 	uint8_t i, s1, s2;
117 
118 	a = 0xFFFF;
119 	b = 0x000F;
120 
121 	fast_divide32_prepare(b, &m, &s1, &s2);
122 
123 	q = fast_divide32(a, b, m, s1, s2);
124 	r = fast_remainder32(a, b, m, s1, s2);
125 
126 	ATF_CHECK_EQ_MSG(q, 0x1111,
127 	    "q=%"PRIu32"; a=%"PRIu32" b=%"PRIu32" a/b=%"PRIu32";"
128 	    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
129 	    q, a, b, a / b, m, s1, s2);
130 	ATF_CHECK_EQ_MSG(r, 0,
131 	    "q=%"PRIu32", a=%"PRIu32", b=%"PRIu32", a%%b=%"PRIu32";"
132 	    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
133 	    q, a, b, a % b, m, s1, s2);
134 
135 	for (i = 1; i < __arraycount(bits); i++) {
136 
137 		a = bits[i].val;
138 		b = bits[i].ffs;
139 
140 		fast_divide32_prepare(b, &m, &s1, &s2);
141 
142 		q = fast_divide32(a, b, m, s1, s2);
143 		r = fast_remainder32(a, b, m, s1, s2);
144 
145 		ATF_CHECK_EQ_MSG(q, a / b,
146 		    "q=%"PRIu32"; a=%"PRIu32" b=%"PRIu32" a/b=%"PRIu32";"
147 		    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
148 		    q, a, b, a / b, m, s1, s2);
149 		ATF_CHECK_EQ_MSG(r, a % b,
150 		    "q=%"PRIu32", a=%"PRIu32", b=%"PRIu32", a%%b=%"PRIu32";"
151 		    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
152 		    q, a, b, a % b, m, s1, s2);
153 	}
154 }
155 
156 ATF_TC(ffsfls);
157 ATF_TC_HEAD(ffsfls, tc)
158 {
159 	atf_tc_set_md_var(tc, "descr", "Test ffs32(3)-family for correctness");
160 }
161 
162 ATF_TC_BODY(ffsfls, tc)
163 {
164 	uint8_t i;
165 	int n, m;
166 
167 	ATF_CHECK_EQ_MSG((n = ffs32(0)), 0x00, "n=%d", n);
168 	ATF_CHECK_EQ_MSG((n = fls32(0)), 0x00, "n=%d", n);
169 	ATF_CHECK_EQ_MSG((n = ffs64(0)), 0x00, "n=%d", n);
170 	ATF_CHECK_EQ_MSG((n = fls64(0)), 0x00, "n=%d", n);
171 
172 	ATF_CHECK_EQ_MSG((n = ffs32(UINT32_MAX)), 0x01, "n=%d", n);
173 	ATF_CHECK_EQ_MSG((n = fls32(UINT32_MAX)), 0x20, "n=%d", n);
174 	ATF_CHECK_EQ_MSG((n = ffs64(UINT64_MAX)), 0x01, "n=%d", n);
175 	ATF_CHECK_EQ_MSG((n = fls64(UINT64_MAX)), 0x40, "n=%d", n);
176 
177 	for (i = 1; i < __arraycount(bits); i++) {
178 
179 		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val)), (m = bits[i].ffs),
180 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
181 		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val)), (m = bits[i].fls),
182 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
183 		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val)), (m = bits[i].ffs),
184 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
185 		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val)), (m = bits[i].fls),
186 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
187 
188 		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val << 1)),
189 		    (m = bits[i].ffs + 1),
190 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
191 		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val << 1)),
192 		    (m = bits[i].fls + 1),
193 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
194 		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val << 1)),
195 		    (m = bits[i].ffs + 1),
196 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
197 		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val << 1)),
198 		    (m = bits[i].fls + 1),
199 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
200 
201 		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val << 9)),
202 		    (m = bits[i].ffs + 9),
203 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
204 		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val << 9)),
205 		    (m = bits[i].fls + 9),
206 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
207 		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val << 9)),
208 		    (m = bits[i].ffs + 9),
209 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
210 		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val << 9)),
211 		    (m = bits[i].fls + 9),
212 		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
213 	}
214 }
215 
216 ATF_TC(ilog2_32bit);
217 ATF_TC_HEAD(ilog2_32bit, tc)
218 {
219 	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for 32bit variable");
220 }
221 
222 ATF_TC_BODY(ilog2_32bit, tc)
223 {
224 	int i, L;
225 	uint32_t x;
226 
227 	for (i = 0; i < 32; i++) {
228 		x = 1U << i;
229 		ATF_CHECK_EQ_MSG((L = ilog2(x)), i, "i=%d x=0x%"PRIx32" L=%d",
230 		    i, x, L);
231 	}
232 }
233 
234 ATF_TC(ilog2_64bit);
235 ATF_TC_HEAD(ilog2_64bit, tc)
236 {
237 	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for 64bit variable");
238 }
239 
240 ATF_TC_BODY(ilog2_64bit, tc)
241 {
242 	int i, L;
243 	uint64_t x;
244 
245 	for (i = 0; i < 64; i++) {
246 		x = (uint64_t)1 << i;
247 		ATF_CHECK_EQ_MSG((L = ilog2(x)), i, "i=%d x=0x%"PRIx64" L=%d",
248 		    i, x, L);
249 	}
250 }
251 
252 ATF_TC(ilog2_const);
253 ATF_TC_HEAD(ilog2_const, tc)
254 {
255 	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for constant");
256 }
257 
258 ATF_TC_BODY(ilog2_const, tc)
259 {
260 	int L;
261 
262 	/*
263 	 * These inlines test __builtin_constant_p() part of ilog2()
264 	 * at compile time, so don't change it to loop.  PR lib/49745
265 	 */
266 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000001ULL)), 0, "L=%d", L);
267 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000002ULL)), 1, "L=%d", L);
268 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000004ULL)), 2, "L=%d", L);
269 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000008ULL)), 3, "L=%d", L);
270 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000010ULL)), 4, "L=%d", L);
271 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000020ULL)), 5, "L=%d", L);
272 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000040ULL)), 6, "L=%d", L);
273 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000080ULL)), 7, "L=%d", L);
274 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000100ULL)), 8, "L=%d", L);
275 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000200ULL)), 9, "L=%d", L);
276 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000400ULL)), 10, "L=%d", L);
277 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000800ULL)), 11, "L=%d", L);
278 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000001000ULL)), 12, "L=%d", L);
279 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000002000ULL)), 13, "L=%d", L);
280 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000004000ULL)), 14, "L=%d", L);
281 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000008000ULL)), 15, "L=%d", L);
282 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000010000ULL)), 16, "L=%d", L);
283 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000020000ULL)), 17, "L=%d", L);
284 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000040000ULL)), 18, "L=%d", L);
285 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000080000ULL)), 19, "L=%d", L);
286 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000100000ULL)), 20, "L=%d", L);
287 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000200000ULL)), 21, "L=%d", L);
288 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000400000ULL)), 22, "L=%d", L);
289 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000800000ULL)), 23, "L=%d", L);
290 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000001000000ULL)), 24, "L=%d", L);
291 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000002000000ULL)), 25, "L=%d", L);
292 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000004000000ULL)), 26, "L=%d", L);
293 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000008000000ULL)), 27, "L=%d", L);
294 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000010000000ULL)), 28, "L=%d", L);
295 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000020000000ULL)), 29, "L=%d", L);
296 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000040000000ULL)), 30, "L=%d", L);
297 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000080000000ULL)), 31, "L=%d", L);
298 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000100000000ULL)), 32, "L=%d", L);
299 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000200000000ULL)), 33, "L=%d", L);
300 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000400000000ULL)), 34, "L=%d", L);
301 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000800000000ULL)), 35, "L=%d", L);
302 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000001000000000ULL)), 36, "L=%d", L);
303 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000002000000000ULL)), 37, "L=%d", L);
304 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000004000000000ULL)), 38, "L=%d", L);
305 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000008000000000ULL)), 39, "L=%d", L);
306 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000010000000000ULL)), 40, "L=%d", L);
307 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000020000000000ULL)), 41, "L=%d", L);
308 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000040000000000ULL)), 42, "L=%d", L);
309 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000080000000000ULL)), 43, "L=%d", L);
310 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000100000000000ULL)), 44, "L=%d", L);
311 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000200000000000ULL)), 45, "L=%d", L);
312 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000400000000000ULL)), 46, "L=%d", L);
313 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000800000000000ULL)), 47, "L=%d", L);
314 	ATF_CHECK_EQ_MSG((L = ilog2(0x0001000000000000ULL)), 48, "L=%d", L);
315 	ATF_CHECK_EQ_MSG((L = ilog2(0x0002000000000000ULL)), 49, "L=%d", L);
316 	ATF_CHECK_EQ_MSG((L = ilog2(0x0004000000000000ULL)), 50, "L=%d", L);
317 	ATF_CHECK_EQ_MSG((L = ilog2(0x0008000000000000ULL)), 51, "L=%d", L);
318 	ATF_CHECK_EQ_MSG((L = ilog2(0x0010000000000000ULL)), 52, "L=%d", L);
319 	ATF_CHECK_EQ_MSG((L = ilog2(0x0020000000000000ULL)), 53, "L=%d", L);
320 	ATF_CHECK_EQ_MSG((L = ilog2(0x0040000000000000ULL)), 54, "L=%d", L);
321 	ATF_CHECK_EQ_MSG((L = ilog2(0x0080000000000000ULL)), 55, "L=%d", L);
322 	ATF_CHECK_EQ_MSG((L = ilog2(0x0100000000000000ULL)), 56, "L=%d", L);
323 	ATF_CHECK_EQ_MSG((L = ilog2(0x0200000000000000ULL)), 57, "L=%d", L);
324 	ATF_CHECK_EQ_MSG((L = ilog2(0x0400000000000000ULL)), 58, "L=%d", L);
325 	ATF_CHECK_EQ_MSG((L = ilog2(0x0800000000000000ULL)), 59, "L=%d", L);
326 	ATF_CHECK_EQ_MSG((L = ilog2(0x1000000000000000ULL)), 60, "L=%d", L);
327 	ATF_CHECK_EQ_MSG((L = ilog2(0x2000000000000000ULL)), 61, "L=%d", L);
328 	ATF_CHECK_EQ_MSG((L = ilog2(0x4000000000000000ULL)), 62, "L=%d", L);
329 	ATF_CHECK_EQ_MSG((L = ilog2(0x8000000000000000ULL)), 63, "L=%d", L);
330 
331 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000003ULL)), 1, "L=%d", L);
332 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000007ULL)), 2, "L=%d", L);
333 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000000fULL)), 3, "L=%d", L);
334 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000001fULL)), 4, "L=%d", L);
335 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000003fULL)), 5, "L=%d", L);
336 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000007fULL)), 6, "L=%d", L);
337 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000000ffULL)), 7, "L=%d", L);
338 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000001ffULL)), 8, "L=%d", L);
339 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000003ffULL)), 9, "L=%d", L);
340 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000007ffULL)), 10, "L=%d", L);
341 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000fffULL)), 11, "L=%d", L);
342 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000001fffULL)), 12, "L=%d", L);
343 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000003fffULL)), 13, "L=%d", L);
344 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000007fffULL)), 14, "L=%d", L);
345 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000ffffULL)), 15, "L=%d", L);
346 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000001ffffULL)), 16, "L=%d", L);
347 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000003ffffULL)), 17, "L=%d", L);
348 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000007ffffULL)), 18, "L=%d", L);
349 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000fffffULL)), 19, "L=%d", L);
350 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000001fffffULL)), 20, "L=%d", L);
351 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000003fffffULL)), 21, "L=%d", L);
352 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000007fffffULL)), 22, "L=%d", L);
353 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000ffffffULL)), 23, "L=%d", L);
354 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000001ffffffULL)), 24, "L=%d", L);
355 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000003ffffffULL)), 25, "L=%d", L);
356 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000007ffffffULL)), 26, "L=%d", L);
357 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000fffffffULL)), 27, "L=%d", L);
358 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000001fffffffULL)), 28, "L=%d", L);
359 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000003fffffffULL)), 29, "L=%d", L);
360 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000007fffffffULL)), 30, "L=%d", L);
361 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000ffffffffULL)), 31, "L=%d", L);
362 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000001ffffffffULL)), 32, "L=%d", L);
363 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000003ffffffffULL)), 33, "L=%d", L);
364 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000007ffffffffULL)), 34, "L=%d", L);
365 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000fffffffffULL)), 35, "L=%d", L);
366 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000001fffffffffULL)), 36, "L=%d", L);
367 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000003fffffffffULL)), 37, "L=%d", L);
368 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000007fffffffffULL)), 38, "L=%d", L);
369 	ATF_CHECK_EQ_MSG((L = ilog2(0x000000ffffffffffULL)), 39, "L=%d", L);
370 	ATF_CHECK_EQ_MSG((L = ilog2(0x000001ffffffffffULL)), 40, "L=%d", L);
371 	ATF_CHECK_EQ_MSG((L = ilog2(0x000003ffffffffffULL)), 41, "L=%d", L);
372 	ATF_CHECK_EQ_MSG((L = ilog2(0x000007ffffffffffULL)), 42, "L=%d", L);
373 	ATF_CHECK_EQ_MSG((L = ilog2(0x00000fffffffffffULL)), 43, "L=%d", L);
374 	ATF_CHECK_EQ_MSG((L = ilog2(0x00001fffffffffffULL)), 44, "L=%d", L);
375 	ATF_CHECK_EQ_MSG((L = ilog2(0x00003fffffffffffULL)), 45, "L=%d", L);
376 	ATF_CHECK_EQ_MSG((L = ilog2(0x00007fffffffffffULL)), 46, "L=%d", L);
377 	ATF_CHECK_EQ_MSG((L = ilog2(0x0000ffffffffffffULL)), 47, "L=%d", L);
378 	ATF_CHECK_EQ_MSG((L = ilog2(0x0001ffffffffffffULL)), 48, "L=%d", L);
379 	ATF_CHECK_EQ_MSG((L = ilog2(0x0003ffffffffffffULL)), 49, "L=%d", L);
380 	ATF_CHECK_EQ_MSG((L = ilog2(0x0007ffffffffffffULL)), 50, "L=%d", L);
381 	ATF_CHECK_EQ_MSG((L = ilog2(0x000fffffffffffffULL)), 51, "L=%d", L);
382 	ATF_CHECK_EQ_MSG((L = ilog2(0x001fffffffffffffULL)), 52, "L=%d", L);
383 	ATF_CHECK_EQ_MSG((L = ilog2(0x003fffffffffffffULL)), 53, "L=%d", L);
384 	ATF_CHECK_EQ_MSG((L = ilog2(0x007fffffffffffffULL)), 54, "L=%d", L);
385 	ATF_CHECK_EQ_MSG((L = ilog2(0x00ffffffffffffffULL)), 55, "L=%d", L);
386 	ATF_CHECK_EQ_MSG((L = ilog2(0x01ffffffffffffffULL)), 56, "L=%d", L);
387 	ATF_CHECK_EQ_MSG((L = ilog2(0x03ffffffffffffffULL)), 57, "L=%d", L);
388 	ATF_CHECK_EQ_MSG((L = ilog2(0x07ffffffffffffffULL)), 58, "L=%d", L);
389 	ATF_CHECK_EQ_MSG((L = ilog2(0x0fffffffffffffffULL)), 59, "L=%d", L);
390 	ATF_CHECK_EQ_MSG((L = ilog2(0x1fffffffffffffffULL)), 60, "L=%d", L);
391 	ATF_CHECK_EQ_MSG((L = ilog2(0x3fffffffffffffffULL)), 61, "L=%d", L);
392 	ATF_CHECK_EQ_MSG((L = ilog2(0x7fffffffffffffffULL)), 62, "L=%d", L);
393 	ATF_CHECK_EQ_MSG((L = ilog2(0xffffffffffffffffULL)), 63, "L=%d", L);
394 }
395 
396 ATF_TP_ADD_TCS(tp)
397 {
398 
399 	ATF_TP_ADD_TC(tp, bitmap_basic);
400 	ATF_TP_ADD_TC(tp, fast_divide32);
401 	ATF_TP_ADD_TC(tp, ffsfls);
402 	ATF_TP_ADD_TC(tp, ilog2_32bit);
403 	ATF_TP_ADD_TC(tp, ilog2_64bit);
404 	ATF_TP_ADD_TC(tp, ilog2_const);
405 
406 	return atf_no_error();
407 }
408