Serious performance regression -- some tree optimizer questions

[Ulrich Weigand]

Steven Bosscher <stevenb@suse.de> wrote on 12/18/2004 01:18:04 AM:

> When I last looked at mgrid for AMD64, I found -fno-tree-pre to
> be very helpful.

Thanks for the tip; I can see how it might make a difference e.g.
with register pressure in some cases.  Unfortunately it hadn't
much effect on my platform ...

Bye,
Ulrich

--
  Dr. Ulrich Weigand
  Linux for S/390 Design & Development
  IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
  Phone: +49-7031/16-3727   ---   Email: Ulrich.Weigand@de.ibm.com