Re: amd64 bitops fix for -Os

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Oct 29, 2005, Alexandre Oliva <[email protected]> wrote:

> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171672

> In teh find_first_zero_bit case, this comes at pretty much no cost,
> since we already test size for non-zero, but we used to do that
> adjusting it from bits to words; changing it should have no visible
> effect on performance.

I forgot to mention that this approach to fix the problem was
suggested by Al Viro.  Sorry, Al.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux