From: Geoff Keating <geoffk@geoffk.org>
To: Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Cc: "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: [tree-ssa] Garbage collector x bb annotations
Date: Wed, 08 Oct 2003 21:32:00 -0000 [thread overview]
Message-ID: <jmoewrza7x.fsf@desire.geoffk.org> (raw)
In-Reply-To: <20031008135344.GB18809@atrey.karlin.mff.cuni.cz>
Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> writes:
> Hello,
>
> > > I have just run into the following problem: dom_children get released by
> > > ggc_collect call in tree-ssa-pre. Allocating them by ggc seems wrong to
> > > me, since basic block annotations are allocated from obstack and
> > > invisible to garbage collector.
> > >
> > Yeah. But there's more than that, unfortunately. All the fields in
> > struct bb_ann_d are ggc allocated. The real solution would be to
> > finally convert basic blocks to ggc. Volunteers?
>
> I may try (I need it anyway for tree-ssa-cfg branch). The whole issue
> is however quite ugly as this combines basically all allocation
> mechanisms that are available in gcc (basic blocks themselves are pool
> allocated).
It's not that ugly to make the fix, you simply have to throw out all
those other allocation mechanisms and use ggc.
--
- Geoffrey Keating <geoffk@geoffk.org>
next prev parent reply other threads:[~2003-10-08 21:32 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-06 22:31 Zdenek Dvorak
2003-10-07 2:53 ` Daniel Berlin
2003-10-08 13:27 ` Diego Novillo
2003-10-08 13:53 ` Zdenek Dvorak
2003-10-08 14:02 ` Diego Novillo
2003-10-08 14:17 ` Daniel Berlin
2003-10-08 21:30 ` Geoff Keating
2003-10-08 22:34 ` Daniel Berlin
2003-10-08 22:49 ` Geoff Keating
2003-10-09 14:42 ` Zdenek Dvorak
2003-10-08 21:32 ` Geoff Keating [this message]
2003-10-08 21:37 ` Zdenek Dvorak
2003-10-08 22:58 ` Geoff Keating
2003-10-08 23:01 ` Daniel Berlin
2003-10-09 0:03 ` David Edelsohn
2003-10-08 23:05 ` Zdenek Dvorak
2003-10-08 23:10 ` Daniel Berlin
2003-10-08 23:12 ` Zdenek Dvorak
2003-10-09 3:31 ` Jeff Sturm
2003-10-08 13:58 S. Bosscher
2003-10-08 14:03 ` Diego Novillo
2003-10-08 14:03 S. Bosscher
2003-10-08 14:19 ` Daniel Berlin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jmoewrza7x.fsf@desire.geoffk.org \
--to=geoffk@geoffk.org \
--cc=gcc@gcc.gnu.org \
--cc=rakdver@atrey.karlin.mff.cuni.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).