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From: Steven Bosscher <stevenb@suse.de>
To: Andrew MacLeod <amacleod@redhat.com>
Cc: Jeff Law <law@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: Wed, 20 Oct 2004 14:30:00 -0000	[thread overview]
Message-ID: <200410201559.15021.stevenb@suse.de> (raw)
In-Reply-To: <1098279673.5695.3937.camel@pain>

On Wednesday 20 October 2004 15:41, Andrew MacLeod wrote:
> Why doesnt cleanup_control_flow actually follow the flow from entry to
> exit instead of FOR_EACH_BB?

I'm asking myself that each time I see FOR_{EACH,ALL}_BB.

>  Does it have to do something in blocks
> that are unreachable?

No.

>  Or is it just an attempt to avoid using a visited
> bitmap?

And a stack for backtracking.

I've been thinking for some time now about implementing FOR_EACH_BB_DFS
(and perhaps other visiting orders) using some iterator.  You think that
would be a good idea?

Gr.
Steven

  reply	other threads:[~2004-10-20 13:58 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 [this message]
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
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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