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1/* Copyright (C) 2000-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <http://www.gnu.org/licenses/>. */
17
18/* Finds the first bit set in an integer. */
19
20#include <sysdep.h>
21
22 .arch ev6
23 .set noreorder
24 .set noat
25
26
27ENTRY(__ffs)
28#ifdef PROF
29 ldgp gp, 0(pv)
30 lda AT, _mcount
31 jsr AT, (AT), _mcount
32 .prologue 1
33#else
34 .prologue 0
35#endif
36
37 zap $16, 0xF0, $16
38 cttz $16, $0
39 addq $0, 1, $0
40 cmoveq $16, 0, $0
41
42 nop
43 nop
44 nop
45 ret
46
47END(__ffs)
48
49weak_alias (__ffs, ffs)
50libc_hidden_def (__ffs)
51libc_hidden_builtin_def (ffs)
52

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