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-rw-r--r--sysdeps/alpha/alphaev67/ffs.S51
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+/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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/>. */
+
+/* Finds the first bit set in an integer. */
+
+#include <sysdep.h>
+
+ .arch ev6
+ .set noreorder
+ .set noat
+
+
+ENTRY(__ffs)
+#ifdef PROF
+ ldgp gp, 0(pv)
+ lda AT, _mcount
+ jsr AT, (AT), _mcount
+ .prologue 1
+#else
+ .prologue 0
+#endif
+
+ zap $16, 0xF0, $16
+ cttz $16, $0
+ addq $0, 1, $0
+ cmoveq $16, 0, $0
+
+ nop
+ nop
+ nop
+ ret
+
+END(__ffs)
+
+weak_alias (__ffs, ffs)
+libc_hidden_def (__ffs)
+libc_hidden_builtin_def (ffs)