[PATCH] New early loop unrolling pass

[Richard Guenther]

On Sun, Apr 27, 2008 at 2:13 PM, Dominique Dhumieres <dominiq@lps.ens.fr> wrote:
> Richard,
>
>
>  > I re-bootstrapped and tested the following which I'll apply tomorrow
>  > if there are no objections.
>
>  I have applied the new patch and it still yields worse execution time
>  for the optimized variants of induct.f90.

Of course, the patch didn't change.  I don't consider this a
show-stopper as it obviously
just exposes bugs in the vectorizer or its cost model.  There is
plenty of time to address
this during stage1/2 or ignore it.  It would be helpful if you could
provide a reduced
runtime testcase with just one loop that shows this regression.

Thanks,
Richard.