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5d39821d | 1 | /* The implementation of __ctzhi2. |
83ffe9cd | 2 | Copyright (C) 2003-2023 Free Software Foundation, Inc. |
5d39821d | 3 | |
7ec022b2 | 4 | This file is part of GCC. |
5d39821d | 5 | |
7ec022b2 | 6 | GCC is free software; you can redistribute it and/or modify |
5d39821d | 7 | it under the terms of the GNU General Public License as published by |
748086b7 | 8 | the Free Software Foundation; either version 3, or (at your option) |
5d39821d KH |
9 | any later version. |
10 | ||
7ec022b2 | 11 | GCC is distributed in the hope that it will be useful, |
5d39821d KH |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | Under Section 7 of GPL version 3, you are granted additional |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
5d39821d | 24 | |
846d57c7 KH |
25 | int __ctzhi2 (unsigned short x); |
26 | ||
5d39821d KH |
27 | int |
28 | __ctzhi2 (unsigned short x) | |
29 | { | |
30 | int i; | |
31 | for (i = 0; i < 16; i++) | |
32 | if (x & ((unsigned short) 1 << i)) | |
33 | break; | |
34 | return i; | |
35 | } |