xref: /src/tests/include/sys/t_bitops.c

/*	$NetBSD: t_bitops.c,v 1.22 2024/11/01 18:35:12 riastradh Exp $ */

/*-
 * Copyright (c) 2011, 2012 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Christos Zoulas and Jukka Ruohonen.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_bitops.c,v 1.22 2024/11/01 18:35:12 riastradh Exp $");

#include <atf-c.h>

#include <sys/cdefs.h>
#include <sys/bitops.h>

#include <math.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>

static const struct {
	uint32_t	val;
	int		ffs;
	int		fls;
} bits[] = {

	{ 0x00, 0, 0 }, { 0x01, 1, 1 },	{ 0x02, 2, 2 },	{ 0x03, 1, 2 },
	{ 0x04, 3, 3 }, { 0x05, 1, 3 },	{ 0x06, 2, 3 },	{ 0x07, 1, 3 },
	{ 0x08, 4, 4 }, { 0x09, 1, 4 },	{ 0x0A, 2, 4 },	{ 0x0B, 1, 4 },
	{ 0x0C, 3, 4 }, { 0x0D, 1, 4 },	{ 0x0E, 2, 4 },	{ 0x0F, 1, 4 },

	{ 0x10, 5, 5 },	{ 0x11, 1, 5 },	{ 0x12, 2, 5 },	{ 0x13, 1, 5 },
	{ 0x14, 3, 5 },	{ 0x15, 1, 5 },	{ 0x16, 2, 5 },	{ 0x17, 1, 5 },
	{ 0x18, 4, 5 },	{ 0x19, 1, 5 },	{ 0x1A, 2, 5 },	{ 0x1B, 1, 5 },
	{ 0x1C, 3, 5 },	{ 0x1D, 1, 5 },	{ 0x1E, 2, 5 },	{ 0x1F, 1, 5 },

	{ 0xF0, 5, 8 },	{ 0xF1, 1, 8 },	{ 0xF2, 2, 8 },	{ 0xF3, 1, 8 },
	{ 0xF4, 3, 8 },	{ 0xF5, 1, 8 },	{ 0xF6, 2, 8 },	{ 0xF7, 1, 8 },
	{ 0xF8, 4, 8 },	{ 0xF9, 1, 8 },	{ 0xFA, 2, 8 },	{ 0xFB, 1, 8 },
	{ 0xFC, 3, 8 },	{ 0xFD, 1, 8 },	{ 0xFE, 2, 8 },	{ 0xFF, 1, 8 },

};

ATF_TC(bitmap_basic);
ATF_TC_HEAD(bitmap_basic, tc)
{
	atf_tc_set_md_var(tc, "descr", "A basic test of __BITMAP_*");
}

ATF_TC_BODY(bitmap_basic, tc)
{
	size_t n;

	__BITMAP_TYPE(, uint32_t, 65536) bm;
	__BITMAP_ZERO(&bm);

	ATF_CHECK_EQ_MSG((n = __BITMAP_SIZE(uint32_t, 65536)), 2048,
	    "n=%zu", n);

	ATF_CHECK_EQ_MSG((n = __BITMAP_SHIFT(uint32_t)), 5, "n=%zu", n);

	ATF_CHECK_EQ_MSG((n = __BITMAP_MASK(uint32_t)), 31, "n=%zu", n);

	for (size_t i = 0; i < 65536; i += 2)
		__BITMAP_SET(i, &bm);

	for (size_t i = 0; i < 2048; i++) {
		ATF_CHECK_EQ_MSG(bm._b[i], 0x55555555, "bm._b[%zu]=0x%"PRIx32,
		    i, bm._b[i]);
	}

	for (size_t i = 0; i < 65536; i++)
		if (i & 1)
			ATF_CHECK_MSG(!__BITMAP_ISSET(i, &bm), "i=%zu", i);
		else {
			ATF_CHECK_MSG(__BITMAP_ISSET(i, &bm), "i=%zu", i);
			__BITMAP_CLR(i, &bm);
		}

	for (size_t i = 0; i < 65536; i += 2)
		ATF_CHECK_MSG(!__BITMAP_ISSET(i, &bm), "i=%zu", i);
}

ATF_TC(fast_divide32);
ATF_TC_HEAD(fast_divide32, tc)
{
	atf_tc_set_md_var(tc, "descr", "A basic test of fast_divide32(3)");
}

ATF_TC_BODY(fast_divide32, tc)
{
	uint32_t a, b, q, r, m;
	uint8_t i, s1, s2;

	a = 0xFFFF;
	b = 0x000F;

	fast_divide32_prepare(b, &m, &s1, &s2);

	q = fast_divide32(a, b, m, s1, s2);
	r = fast_remainder32(a, b, m, s1, s2);

	ATF_CHECK_EQ_MSG(q, 0x1111,
	    "q=%"PRIu32"; a=%"PRIu32" b=%"PRIu32" a/b=%"PRIu32";"
	    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
	    q, a, b, a / b, m, s1, s2);
	ATF_CHECK_EQ_MSG(r, 0,
	    "q=%"PRIu32", a=%"PRIu32", b=%"PRIu32", a%%b=%"PRIu32";"
	    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
	    q, a, b, a % b, m, s1, s2);

	for (i = 1; i < __arraycount(bits); i++) {

		a = bits[i].val;
		b = bits[i].ffs;

		fast_divide32_prepare(b, &m, &s1, &s2);

		q = fast_divide32(a, b, m, s1, s2);
		r = fast_remainder32(a, b, m, s1, s2);

		ATF_CHECK_EQ_MSG(q, a / b,
		    "q=%"PRIu32"; a=%"PRIu32" b=%"PRIu32" a/b=%"PRIu32";"
		    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
		    q, a, b, a / b, m, s1, s2);
		ATF_CHECK_EQ_MSG(r, a % b,
		    "q=%"PRIu32", a=%"PRIu32", b=%"PRIu32", a%%b=%"PRIu32";"
		    " m=%"PRIu32" s1=%"PRIu8" s2=%"PRIu8,
		    q, a, b, a % b, m, s1, s2);
	}
}

ATF_TC(ffsfls);
ATF_TC_HEAD(ffsfls, tc)
{
	atf_tc_set_md_var(tc, "descr", "Test ffs32(3)-family for correctness");
}

ATF_TC_BODY(ffsfls, tc)
{
	uint8_t i;
	int n, m;

	ATF_CHECK_EQ_MSG((n = ffs(0)), 0x00, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = ffsl(0)), 0x00, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = ffsll(0)), 0x00, "n=%d", n);

	ATF_CHECK_EQ_MSG((n = ffs32(0)), 0x00, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = fls32(0)), 0x00, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = ffs64(0)), 0x00, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = fls64(0)), 0x00, "n=%d", n);

	ATF_CHECK_EQ_MSG((n = ffs(UINT_MAX)), 0x01, "n=%d\n", n);
	ATF_CHECK_EQ_MSG((n = ffsl(ULONG_MAX)), 0x01, "n=%d\n", n);
	ATF_CHECK_EQ_MSG((n = ffsll(ULLONG_MAX)), 0x01, "n=%d\n", n);

	ATF_CHECK_EQ_MSG((n = ffs((unsigned)INT_MAX + 1)),
	    CHAR_BIT*sizeof(int),
	    "n=%d\n", n);
	ATF_CHECK_EQ_MSG((n = ffsl((unsigned long)LONG_MAX + 1)),
	    CHAR_BIT*sizeof(long),
	    "n=%d\n", n);
	ATF_CHECK_EQ_MSG((n = ffsll((unsigned long long)LLONG_MAX + 1)),
	    CHAR_BIT*sizeof(long long),
	    "n=%d\n", n);

	ATF_CHECK_EQ_MSG((n = ffs32(UINT32_MAX)), 0x01, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = fls32(UINT32_MAX)), 0x20, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = ffs64(UINT64_MAX)), 0x01, "n=%d", n);
	ATF_CHECK_EQ_MSG((n = fls64(UINT64_MAX)), 0x40, "n=%d", n);

	for (i = 0; i < CHAR_BIT*sizeof(long long); i++) {
		if (i < CHAR_BIT*sizeof(int)) {
			ATF_CHECK_EQ_MSG((n = ffs(1U << i)), i + 1, "n=%d", n);
		}
		if (i < CHAR_BIT*sizeof(long)) {
			ATF_CHECK_EQ_MSG((n = ffsl(1UL << i)), i + 1,
			    "n=%d", n);
		}
		if (i < CHAR_BIT*sizeof(long long)) {
			ATF_CHECK_EQ_MSG((n = ffsll(1ULL << i)), i + 1,
			    "n=%d", n);
		}
		if (i < CHAR_BIT*sizeof(int32_t)) {
			ATF_CHECK_EQ_MSG((n = ffs32((uint32_t)1 << i)), i + 1,
			    "n=%d", n);
		}
		if (i < CHAR_BIT*sizeof(int64_t)) {
			ATF_CHECK_EQ_MSG((n = ffs64((uint64_t)1 << i)), i + 1,
			    "n=%d", n);
		}
	}

	for (i = 1; i < __arraycount(bits); i++) {

		ATF_CHECK_EQ_MSG((n = ffs(bits[i].val)), (m = bits[i].ffs),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsl(bits[i].val)), (m = bits[i].ffs),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsll(bits[i].val)), (m = bits[i].ffs),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);

		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val)), (m = bits[i].ffs),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val)), (m = bits[i].fls),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val)), (m = bits[i].ffs),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val)), (m = bits[i].fls),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);

		ATF_CHECK_EQ_MSG((n = ffs(bits[i].val << 1)),
		    (m = bits[i].ffs + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsl(bits[i].val << 1)),
		    (m = bits[i].ffs + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsll(bits[i].val << 1)),
		    (m = bits[i].ffs + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);

		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val << 1)),
		    (m = bits[i].ffs + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val << 1)),
		    (m = bits[i].fls + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val << 1)),
		    (m = bits[i].ffs + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val << 1)),
		    (m = bits[i].fls + 1),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);

		ATF_CHECK_EQ_MSG((n = ffs(bits[i].val << 9)),
		    (m = bits[i].ffs + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsl(bits[i].val << 9)),
		    (m = bits[i].ffs + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffsll(bits[i].val << 9)),
		    (m = bits[i].ffs + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);

		ATF_CHECK_EQ_MSG((n = ffs32(bits[i].val << 9)),
		    (m = bits[i].ffs + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls32(bits[i].val << 9)),
		    (m = bits[i].fls + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = ffs64(bits[i].val << 9)),
		    (m = bits[i].ffs + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
		ATF_CHECK_EQ_MSG((n = fls64(bits[i].val << 9)),
		    (m = bits[i].fls + 9),
		    "[i=%"PRIu8"] n=%d m=%d", i, n, m);
	}
}

ATF_TC(ilog2_32bit);
ATF_TC_HEAD(ilog2_32bit, tc)
{
	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for 32bit variable");
}

ATF_TC_BODY(ilog2_32bit, tc)
{
	int i, L;
	uint32_t x;

	for (i = 0; i < 32; i++) {
		x = 1U << i;
		ATF_CHECK_EQ_MSG((L = ilog2(x)), i, "i=%d x=0x%"PRIx32" L=%d",
		    i, x, L);
	}
}

ATF_TC(ilog2_64bit);
ATF_TC_HEAD(ilog2_64bit, tc)
{
	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for 64bit variable");
}

ATF_TC_BODY(ilog2_64bit, tc)
{
	int i, L;
	uint64_t x;

	for (i = 0; i < 64; i++) {
		x = (uint64_t)1 << i;
		ATF_CHECK_EQ_MSG((L = ilog2(x)), i, "i=%d x=0x%"PRIx64" L=%d",
		    i, x, L);
	}
}

ATF_TC(ilog2_const);
ATF_TC_HEAD(ilog2_const, tc)
{
	atf_tc_set_md_var(tc, "descr", "Test ilog2(3) for constant");
}

ATF_TC_BODY(ilog2_const, tc)
{
	int L;

	/*
	 * These inlines test __builtin_constant_p() part of ilog2()
	 * at compile time, so don't change it to loop.  PR lib/49745
	 */
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000001ULL)), 0, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000002ULL)), 1, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000004ULL)), 2, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000008ULL)), 3, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000010ULL)), 4, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000020ULL)), 5, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000040ULL)), 6, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000080ULL)), 7, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000100ULL)), 8, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000200ULL)), 9, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000400ULL)), 10, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000800ULL)), 11, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000001000ULL)), 12, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000002000ULL)), 13, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000004000ULL)), 14, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000008000ULL)), 15, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000010000ULL)), 16, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000020000ULL)), 17, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000040000ULL)), 18, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000080000ULL)), 19, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000100000ULL)), 20, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000200000ULL)), 21, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000400000ULL)), 22, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000800000ULL)), 23, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000001000000ULL)), 24, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000002000000ULL)), 25, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000004000000ULL)), 26, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000008000000ULL)), 27, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000010000000ULL)), 28, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000020000000ULL)), 29, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000040000000ULL)), 30, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000080000000ULL)), 31, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000100000000ULL)), 32, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000200000000ULL)), 33, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000400000000ULL)), 34, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000800000000ULL)), 35, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000001000000000ULL)), 36, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000002000000000ULL)), 37, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000004000000000ULL)), 38, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000008000000000ULL)), 39, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000010000000000ULL)), 40, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000020000000000ULL)), 41, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000040000000000ULL)), 42, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000080000000000ULL)), 43, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000100000000000ULL)), 44, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000200000000000ULL)), 45, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000400000000000ULL)), 46, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000800000000000ULL)), 47, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0001000000000000ULL)), 48, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0002000000000000ULL)), 49, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0004000000000000ULL)), 50, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0008000000000000ULL)), 51, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0010000000000000ULL)), 52, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0020000000000000ULL)), 53, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0040000000000000ULL)), 54, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0080000000000000ULL)), 55, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0100000000000000ULL)), 56, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0200000000000000ULL)), 57, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0400000000000000ULL)), 58, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0800000000000000ULL)), 59, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x1000000000000000ULL)), 60, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x2000000000000000ULL)), 61, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x4000000000000000ULL)), 62, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x8000000000000000ULL)), 63, "L=%d", L);

	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000003ULL)), 1, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000007ULL)), 2, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000000fULL)), 3, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000001fULL)), 4, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000003fULL)), 5, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000007fULL)), 6, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000000ffULL)), 7, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000001ffULL)), 8, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000003ffULL)), 9, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000007ffULL)), 10, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000000fffULL)), 11, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000001fffULL)), 12, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000003fffULL)), 13, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000007fffULL)), 14, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000000ffffULL)), 15, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000001ffffULL)), 16, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000003ffffULL)), 17, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000007ffffULL)), 18, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000000fffffULL)), 19, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000001fffffULL)), 20, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000003fffffULL)), 21, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000007fffffULL)), 22, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000000ffffffULL)), 23, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000001ffffffULL)), 24, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000003ffffffULL)), 25, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000007ffffffULL)), 26, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000000fffffffULL)), 27, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000001fffffffULL)), 28, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000003fffffffULL)), 29, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000007fffffffULL)), 30, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000000ffffffffULL)), 31, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000001ffffffffULL)), 32, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000003ffffffffULL)), 33, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000007ffffffffULL)), 34, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000000fffffffffULL)), 35, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000001fffffffffULL)), 36, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000003fffffffffULL)), 37, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000007fffffffffULL)), 38, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000000ffffffffffULL)), 39, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000001ffffffffffULL)), 40, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000003ffffffffffULL)), 41, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000007ffffffffffULL)), 42, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00000fffffffffffULL)), 43, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00001fffffffffffULL)), 44, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00003fffffffffffULL)), 45, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00007fffffffffffULL)), 46, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0000ffffffffffffULL)), 47, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0001ffffffffffffULL)), 48, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0003ffffffffffffULL)), 49, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0007ffffffffffffULL)), 50, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x000fffffffffffffULL)), 51, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x001fffffffffffffULL)), 52, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x003fffffffffffffULL)), 53, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x007fffffffffffffULL)), 54, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x00ffffffffffffffULL)), 55, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x01ffffffffffffffULL)), 56, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x03ffffffffffffffULL)), 57, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x07ffffffffffffffULL)), 58, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x0fffffffffffffffULL)), 59, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x1fffffffffffffffULL)), 60, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x3fffffffffffffffULL)), 61, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0x7fffffffffffffffULL)), 62, "L=%d", L);
	ATF_CHECK_EQ_MSG((L = ilog2(0xffffffffffffffffULL)), 63, "L=%d", L);
}

ATF_TP_ADD_TCS(tp)
{

	ATF_TP_ADD_TC(tp, bitmap_basic);
	ATF_TP_ADD_TC(tp, fast_divide32);
	ATF_TP_ADD_TC(tp, ffsfls);
	ATF_TP_ADD_TC(tp, ilog2_32bit);
	ATF_TP_ADD_TC(tp, ilog2_64bit);
	ATF_TP_ADD_TC(tp, ilog2_const);

	return atf_no_error();
}