[scev] Re: Strange IV choices?

[Richard Guenther]

On Tue, 14 Dec 2004, Richard Guenther wrote:

> On Tue, 14 Dec 2004, Steven Bosscher wrote:
>
> > On Dec 14, 2004 04:02 PM, Richard Guenther <rguenth@tat.physik.uni-tuebingen.de> wrote:
> > > No, but does this help the scev analyzer with currently
> > > unknown evolution?
>
> It seems to depend on the level of "indirection" in the C++ class
> hierarchy, if I short-cut one level, it works again.  Are there
> any complexity limits in the scev analyzer?  How would they depend
> on the amount of "local" variables?
>
> I'm slightly confused.  Maybe someone can have a look at the ivopts dump.

"Testcase" (sorry, big) at

http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/perf.iu.ii.gz

Richard.

--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/