1// SPDX-License-Identifier: GPL-2.0
2const unsigned char __clz_tab[] = {
3 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
4 5, 5, 5, 5, 5, 5, 5, 5,
5 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6 6, 6, 6, 6, 6, 6, 6, 6,
7 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
8 7, 7, 7, 7, 7, 7, 7, 7,
9 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
10 7, 7, 7, 7, 7, 7, 7, 7,
11 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
12 8, 8, 8, 8, 8, 8, 8, 8,
13 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
14 8, 8, 8, 8, 8, 8, 8, 8,
15 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
16 8, 8, 8, 8, 8, 8, 8, 8,
17 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
18 8, 8, 8, 8, 8, 8, 8, 8,
19};
20

source code of linux/lib/clz_tab.c