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Diffstat (limited to 'sysdeps/powerpc/powerpc64/ffsll.c')
-rw-r--r--sysdeps/powerpc/powerpc64/ffsll.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/ffsll.c b/sysdeps/powerpc/powerpc64/ffsll.c
new file mode 100644
index 0000000000..3a0018955e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/ffsll.c
@@ -0,0 +1,38 @@
+/* Find first set bit in a word, counted from least significant end.
+ For PowerPC.
+ Copyright (C) 1991, 1992, 1997, 1998, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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)