[PATCH] powerpc: power7 strncmp optimization

[Ryan S. Arnold]

On Mon, Aug 22, 2011 at 4:00 PM, Will Schmidt <will_schmidt@vnet.ibm.com> wrote:
>
> Reposting.  This patch has been checked into the ibm/2.13/master branch,
> commit a7e0baec8c61a6bdf3b8fcb4ccb725477254f1d3
> and has been running string in our internal testing, etc.
>
> Hi,
>  The following code change provides a throughput boost to the 64-bit
> power7 strncmp code of approx 15%.  The 32-bit throughput is not notably
> affected by this change, so the change to the 32-bit code is done to
> keep the two files in sync with each other.
>
> 2011-08-04  Will Schmidt  <will_schmidt@vnet.ibm.com>
>
>        * sysdeps/powerpc/powerpc32/power7/strncmp.S: Adjust the alignment
>        and add nop instructions for throughput optimization.
>        * sysdeps/powerpc/powerpc64/power7/strncmp.S: Adjust the alignment
>        and nop instructions for throughput optimization.

Ack!

Please consider this patch for commit.

Ryan S. Arnold