[autovect]: Handle indirect_refs in compute_data_dependence_for_loop, add a few more simple dependence tests, and trakc dependence stats

[Daniel Berlin]

On Tue, 2004-11-30 at 19:17 +0200, Dorit Naishlos wrote:
> 
> 
> 
> > Dorit, do I have super powers on this branch? ;-)
> 
> Not that I know of... Lets continue to use the same policy we used for
> lno-branch.
> 
> Daniel - please commit your patch. I'll try to switch the vectorizer to use
> the improved utilities as soon as I can.
> 

Please let me know if it starts causing failures to vectorize when you
do, etc.
I tried to make it match what the vectorizer was doing already, but may
hvae missed something :)