From: Eric Botcazou <ebotcazou@adacore.com>
To: "Joseph S. Myers" <joseph@codesourcery.com>
Cc: gcc-patches@gcc.gnu.org,
Richard Guenther <richard.guenther@gmail.com>,
Xinliang David Li <davidxl@google.com>,
Jan Hubicka <hubicka@ucw.cz>
Subject: Re: [google]: initialize language field for clone function struct
Date: Wed, 04 May 2011 11:01:00 -0000 [thread overview]
Message-ID: <201105041229.28161.ebotcazou@adacore.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1105041013350.25186@digraph.polyomino.org.uk>
> That's what we should phase out. The eventual aim should be for (a)
> folding on GIMPLE (gimple-fold etc. - working with SSA not combined trees)
> as an optimization and (b) folding done by front ends only when required
> for language semantics (e.g. constant expressions). If you want to
> optimize type sizes, look at where they are located in the GIMPLE IR, as a
> property of the IR rather than as a hook checking global state.
In Ada we simply don't want to emit raw type sizes in the GIMPLE IR, they are
just too heavy to be manipulated up to there, even for moderately complex
code. That's why we need them to be folded as soon as possible, and even
factored out of the GENERIC IR into functions when they are self-referential.
--
Eric Botcazou
next prev parent reply other threads:[~2011-05-04 10:30 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-30 1:34 Xinliang David Li
2011-05-02 22:13 ` Xinliang David Li
2011-05-03 10:55 ` Jan Hubicka
2011-05-03 16:15 ` Xinliang David Li
2011-05-03 16:46 ` Jan Hubicka
2011-05-03 18:55 ` Eric Botcazou
2011-05-03 19:07 ` Joseph S. Myers
2011-05-03 19:16 ` Nathan Froyd
2011-05-03 19:51 ` Joseph S. Myers
2011-05-03 20:05 ` Nathan Froyd
2011-05-03 19:52 ` Eric Botcazou
2011-05-03 20:09 ` Joseph S. Myers
2011-05-03 20:36 ` Eric Botcazou
2011-05-03 21:27 ` Joseph S. Myers
2011-05-04 8:53 ` Eric Botcazou
2011-05-04 17:27 ` Tom Tromey
2011-05-04 9:52 ` Richard Guenther
2011-05-04 10:02 ` Eric Botcazou
2011-05-04 10:30 ` Joseph S. Myers
2011-05-04 11:01 ` Eric Botcazou [this message]
2011-05-04 11:50 ` Richard Kenner
2011-05-04 12:23 ` Diego Novillo
2011-05-04 12:27 ` Richard Kenner
2011-05-04 12:31 ` Diego Novillo
2011-05-04 13:16 ` Michael Matz
2011-05-04 13:22 ` Nathan Froyd
2011-05-04 13:26 ` Diego Novillo
2011-05-04 13:39 ` Richard Kenner
2011-05-04 11:19 ` Richard Guenther
2011-05-04 12:00 ` Michael Matz
2011-05-04 12:08 ` Richard Guenther
2011-05-04 15:33 ` Eric Botcazou
2011-05-04 16:05 ` Richard Guenther
2011-05-04 17:22 ` Eric Botcazou
2011-05-05 9:07 ` Richard Guenther
2011-05-05 9:25 ` Eric Botcazou
2011-05-05 9:44 ` Richard Guenther
2011-05-05 10:22 ` Eric Botcazou
2011-05-05 11:03 ` Richard Guenther
2011-05-05 11:59 ` Eric Botcazou
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