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Re: New loop unroller broken?

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: Richard Guenther <rguenth at tat dot physik dot uni-tuebingen dot de>
Cc: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, Ulrich Weigand <weigand at i1 dot informatik dot uni-erlangen dot de>, Andrew Pinski <pinskia at physics dot uc dot edu>, gcc mailing list <gcc at gcc dot gnu dot org>
Date: Thu, 22 Jan 2004 12:00:21 -0800
Subject: Re: New loop unroller broken?
References: <200401221847.TAA04312@faui1d.informatik.uni-erlangen.de> <36C99D46-4D0C-11D8-83FB-000393A6D2F2@physics.uc.edu> <20040122194127.GC16240@atrey.karlin.mff.cuni.cz> <Pine.LNX.4.58.0401222056441.1189@goofy>

On Jan 22, 2004, at 11:58, Richard Guenther wrote:

Err - in the case of tree-ssa being merged for 3.5 wouldn't this be useless? I.e. I would expect loop optimizations being done at the tree level in this case. So this looks more appropriate for 3.4 (though maybe 3.4.1).

Not totally as doloop is a target specific optimization really and needs to be done at the rtl level.


Thanks,
Andrew Pinski

References:
- New loop unroller broken?
  - From: Ulrich Weigand
- Re: New loop unroller broken?
  - From: Andrew Pinski
- Re: New loop unroller broken?
  - From: Zdenek Dvorak
- Re: New loop unroller broken?
  - From: Richard Guenther

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