Serious performance regression -- some tree optimizer questions

[Ulrich Weigand]

Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> wrote on 12/21/2004
05:27:11 PM:

> > It would appear to be correct to set the CHREC_NO_OVERFLOW flag
> > on the result of chrec_fold_plus, say, if the inputs are either
> > invariant or themselves cannot overflow, and the current data type
> > is also such that the operation to be folded cannot overflow.
>
> yes, I plan to do this now.

Excellent, thanks!


Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

--
  Dr. Ulrich Weigand
  Linux for S/390 Design & Development
  IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
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