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- /* mculib libgcc routines of Andes NDS32 cpu for GNU compiler
- Copyright (C) 2012-2022 Free Software Foundation, Inc.
- Contributed by Andes Technology Corporation.
- This file is part of GCC.
- GCC is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
- GCC 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 General Public
- License for more details.
- Under Section 7 of GPL version 3, you are granted additional
- permissions described in the GCC Runtime Library Exception, version
- 3.1, as published by the Free Software Foundation.
- You should have received a copy of the GNU General Public License and
- a copy of the GCC Runtime Library Exception along with this program;
- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- <http://www.gnu.org/licenses/>. */
- int
- __clzsi2 (int val)
- {
- int i = 32;
- int j = 16;
- int temp;
- for (; j; j >>= 1)
- {
- if (temp = val >> j)
- {
- if (j == 1)
- {
- return (i - 2);
- }
- else
- {
- i -= j;
- val = temp;
- }
- }
- }
- return (i - val);
- }
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