On Fri, Jun 08, 2018 at 01:45:13PM +0200, Gabriel Paubert wrote:
> On Fri, Jun 08, 2018 at 10:20:41AM +, Christophe Leroy wrote:
> > + rlwinm. r8, r9, 0, 0xff00
> > + beq 20f
> > + rlwinm. r8, r9, 0, 0x00ff
> > + beq 21f
> > + rlwinm. r8, r9, 0, 0xff00
> > + beq
On Fri, Jun 08, 2018 at 10:20:41AM +, Christophe Leroy wrote:
> The generic implementation of strlen() reads strings byte per byte.
>
> This patch implements strlen() in assembly based on a read of entire
> words, in the same spirit as what some other arches and glibc do.
>
> On a 8xx the tim
The generic implementation of strlen() reads strings byte per byte.
This patch implements strlen() in assembly based on a read of entire
words, in the same spirit as what some other arches and glibc do.
On a 8xx the time spent in strlen is reduced by 2/3 for long strings.
strlen() selftest on an
