Re: dataflow branch merging plans

["Zack Weinberg" <zackw@panix.com>]

Steven Bosscher wrote:
>
> I also seem to recall I said that Zack has done all the good work on
> genautomata, and I think it's pretty much generally agreed that the
> algorithms you originally used to implement genautomata left some
> rather large room for improvement.

I don't know exactly what Steven is thinking of when he says this, but
I consider my contributions to genautomata to be quite minimal.  I
split genautomata out of genattrtab (in aid of removing dependencies
on tm.h, IIRC), and I was able to demonstrate *why* DFA pipeline
descriptions make genattrtab run so slowly[1], but I was not able to
fix it.  I also seem to have ripped out a bunch of unused code from
both, and tightened up the emitted data tables.  I did not make any
major algorithmic contributions to genattrtab/genautomata, and I
haven't touched the scheduler proper at all (that I can remember).

zw

[1] http://gcc.gnu.org/ml/gcc-patches/2006-01/msg00399.html