From: Steven Bosscher <stevenb@suse.de>
To: law@redhat.com
Cc: Andrew MacLeod <amacleod@redhat.com>,
gcc-patches <gcc-patches@gcc.gnu.org>,
Diego Novillo <dnovillo@redhat.com>
Subject: Re: Fix a tcb crash and a potential bug on mainline
Date: Fri, 22 Oct 2004 19:33:00 -0000 [thread overview]
Message-ID: <200410222116.12024.stevenb@suse.de> (raw)
In-Reply-To: <1098472364.2915.216.camel@localhost.localdomain>
On Friday 22 October 2004 21:12, Jeffrey A Law wrote:
> I'm pretty sure we don't release PHIs and SSA_NAMEs in that code,
> but it shouldn't be terribly hard to add it in a way that is
> safe (since the unreachable block removal code is used by both
> trees and rtl).
It's cfg-hookized via delete_basic_block (remove_bb in tree-cfg.c),
so it's probably enough to teach remove_bb about this.
> > > Why not allow the PHI node to exist with no arguments.
> >
> > That would work too, I guess.
>
> And I like that a lot better than removing the PHI and leaving
> in references to the result.
Yup.
Gr.
Steven
next prev parent reply other threads:[~2004-10-22 19:15 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-18 21:09 Steven Bosscher
2004-10-18 22:06 ` Andrew MacLeod
2004-10-18 22:18 ` Andrew Pinski
2004-10-19 20:58 ` Jeffrey A Law
2004-10-19 21:29 ` Steven Bosscher
2004-10-19 22:08 ` Jeffrey A Law
2004-10-19 22:27 ` Daniel Berlin
2004-10-19 22:35 ` Jeffrey A Law
2004-10-19 23:08 ` Daniel Berlin
2004-10-19 23:14 ` Daniel Berlin
2004-10-21 2:33 ` Jeffrey A Law
2004-10-19 22:36 ` Steven Bosscher
2004-10-19 22:41 ` Diego Novillo
2004-10-19 23:16 ` Jeffrey A Law
2004-10-20 13:17 ` Andrew MacLeod
2004-10-20 13:32 ` Steven Bosscher
2004-10-20 13:47 ` Andrew MacLeod
2004-10-20 14:30 ` Steven Bosscher
2004-10-20 16:53 ` Andrew MacLeod
2004-10-20 17:33 ` Daniel Berlin
2004-10-22 19:15 ` Jeffrey A Law
2004-10-22 19:33 ` Steven Bosscher [this message]
2004-10-22 19:37 ` Jeffrey A Law
2004-10-22 19:40 ` Steven Bosscher
2004-10-22 21:08 ` Jeffrey A Law
2004-10-24 21:20 ` Steven Bosscher
2004-10-27 16:27 ` Jeffrey A Law
2004-10-22 19:10 ` Jeffrey A Law
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