diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc64/ffsll.c')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc64/ffsll.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/ffsll.c b/REORG.TODO/sysdeps/powerpc/powerpc64/ffsll.c new file mode 100644 index 0000000000..ae18f127a0 --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc64/ffsll.c @@ -0,0 +1,37 @@ +/* Find first set bit in a word, counted from least significant end. + For PowerPC. + Copyright (C) 1991-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund (tege@sics.se). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define ffsl __something_else +#include <limits.h> +#include <string.h> + +#undef ffs + +int +__ffsll (long long int x) +{ + int cnt; + + asm ("cntlzd %0,%1" : "=r" (cnt) : "r" (x & -x)); + return 64 - cnt; +} +weak_alias (__ffsll, ffsll) +#undef ffsl +weak_alias (__ffsll, ffsl) |