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Re: Great example of why "everything is a tree" sucks

From: Jeff Law <law at redhat dot com>
To: "Joseph S. Myers" <joseph at codesourcery dot com>, Steven Bosscher <stevenb dot gcc at gmail dot com>
Cc: Richard Biener <richard dot guenther at gmail dot com>, Diego Novillo <dnovillo at google dot com>, Jakub Jelinek <jakub at redhat dot com>, GCC <gcc at gcc dot gnu dot org>
Date: Wed, 13 Nov 2013 09:22:07 -0700
Subject: Re: Great example of why "everything is a tree" sucks
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References: <528288B3 dot 8010109 at redhat dot com> <20131112203509 dot GC27813 at tucnak dot zalov dot cz> <CAD_=9DQRZy92RCJEopO=XHMj9+eDHQ0MW1g__ZaFNNrWQW=QNg at mail dot gmail dot com> <CAFiYyc38jGfAaWwo5OWTxmQnNeP9=f5McGrW_3HCNJotvbBtKQ at mail dot gmail dot com> <CABu31nOpcf1EivKXYy-i4Czm84aSv+hOYhrSPpefzNVTjjNW0Q at mail dot gmail dot com> <Pine dot LNX dot 4 dot 64 dot 1311131544060 dot 24404 at digraph dot polyomino dot org dot uk>

On 11/13/13 08:59, Joseph S. Myers wrote:

On Wed, 13 Nov 2013, Steven Bosscher wrote:

Really the best place to start IMHO would be to evict 'tree' from the
front ends. That would really be a step towards making the front ends
independent of the rest of the compiler, and it would simplify changes
towards static 'tree' types.


  From a C perspective, a useful change that would facilitate moving the IR
away from tree would be moving most of fold to operate on GIMPLE instead
of on trees (that is, rewriting it as GIMPLE optimizations; I don't think
this can be a mechanical refactoring).

[ ... ]

Yes. That is most certainly part of "the plan". Andrew, myself andothers have discussed it extensively. It's a lot of work, but gettingthe tree folder disentangled from the gimple optimizers is definitely onthe hit list.


jeff

Follow-Ups:
- Re: Great example of why "everything is a tree" sucks
  - From: Joseph S. Myers

References:
- Great example of why "everything is a tree" sucks
  - From: Jeff Law
- Re: Great example of why "everything is a tree" sucks
  - From: Jakub Jelinek
- Re: Great example of why "everything is a tree" sucks
  - From: Diego Novillo
- Re: Great example of why "everything is a tree" sucks
  - From: Richard Biener
- Re: Great example of why "everything is a tree" sucks
  - From: Steven Bosscher
- Re: Great example of why "everything is a tree" sucks
  - From: Joseph S. Myers

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