diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/ia64/memchr.S | 3 |
2 files changed, 8 insertions, 1 deletions
@@ -1,3 +1,9 @@ +2009-11-09 H.J. Lu <hongjiu.lu@intel.com> + + [BZ #10162] + * sysdeps/ia64/memchr.S: Use a simple loop on data shorter than + software pipeline. + 2009-11-09 Mike Frysinger <vapier@gentoo.org> * sysdeps/unix/sysv/linux/i386/fallocate.c: Include errno.h. diff --git a/sysdeps/ia64/memchr.S b/sysdeps/ia64/memchr.S index cd062b2..e721e17 100644 --- a/sysdeps/ia64/memchr.S +++ b/sysdeps/ia64/memchr.S @@ -71,7 +71,8 @@ ENTRY(__memchr) cmp.ne p7, p0 = r0, r0 // clear p7 extr.u chr = in1, 0, 8 // chr = (unsigned char) in1 mov len = in2 - cmp.gtu p6, p0 = 16, in2 // use a simple loop for short + // use a simple loop on data shorter than software pipeline + cmp.gtu p6, p0 = ((MEMLAT + 1) * 8), in2 (p6) br.cond.spnt .srchfew ;; // searches sub loopcnt = 8, tmp // loopcnt = 8 - tmp cmp.eq p6, p0 = tmp, r0 |