From: Geoff Keating <geoffk@geoffk.org>
To: Andrew MacLeod <amacleod@redhat.com>
Cc: gcc@gcc.gnu.org
Subject: Re: [tree-ssa][ GC, Virtual operands, and GCing between passes
Date: Tue, 09 Dec 2003 23:43:00 -0000 [thread overview]
Message-ID: <jmzne1y350.fsf@desire.geoffk.org> (raw)
In-Reply-To: <1070998524.17667.2860.camel@p4>
Andrew MacLeod <amacleod@redhat.com> writes:
> Are we sure we want to GC between passes? :-|
>
> since VDEFs and VUSEs are tree nodes, I can't allocate the structure
> which holds them anywhere except GC'd memory can I?
>
> ie
>
> a_3 = VDEF <a_2>
>
> This requires points to 2 trees.
>
> the GC system has to know not to collect the trees I am pointing to in
> the 2 words of the vdef vector.
>
> but I dont want to GC the vdef vector.
Why not?
--
- Geoffrey Keating <geoffk@geoffk.org>
next prev parent reply other threads:[~2003-12-09 23:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-09 20:26 Andrew MacLeod
2003-12-09 23:43 ` Geoff Keating [this message]
2003-12-10 4:46 ` Andrew MacLeod
2003-12-11 17:01 ` Geoff Keating
2003-12-11 17:17 ` Andrew MacLeod
2003-12-11 21:15 ` Geoff Keating
2003-12-11 23:31 ` Andrew MacLeod
2003-12-15 22:05 ` Richard Henderson
2003-12-15 22:46 ` Andrew MacLeod
2003-12-11 19:30 ` law
2003-12-11 23:13 ` Andrew MacLeod
2003-12-12 0:21 ` law
2003-12-12 3:29 ` Andrew MacLeod
2003-12-12 5:24 ` law
2003-12-12 13:38 ` Andrew MacLeod
2003-12-13 6:52 ` law
2003-12-11 14:17 ` Andrew MacLeod
2003-12-10 0:03 ` Jan Hubicka
2003-12-10 0:18 ` Andrew MacLeod
2003-12-10 0:38 ` Jan Hubicka
2003-12-11 19:30 ` law
2003-12-11 14:27 S. Bosscher
2003-12-11 14:34 ` Andrew MacLeod
2003-12-11 15:01 ` Andrew MacLeod
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