From: Steven Bosscher <stevenb@suse.de>
To: "Ben Elliston" <bje@au1.ibm.com>,
Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Cc: gcc@gcc.gnu.org
Subject: Re: loop unswitching is sensitive to edge order
Date: Sat, 25 Sep 2004 14:40:00 -0000 [thread overview]
Message-ID: <200409251355.07344.stevenb@suse.de> (raw)
In-Reply-To: <87isa2podz.fsf@au.ibm.com>
On Saturday 25 September 2004 13:40, Ben Elliston wrote:
> Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> writes:
> > > The following patch of yours seems to add some code that is sensitive
> > > to the order of edges in the bb edge list. Am I right?
> >
> > I do not know, since I do not understand what you mean. What problem
> > do you see with the code?
>
> My edges-in-vectors patch breaks when integrated with your patch. I
> was able to fix that breakage by modifying my code so that new
> elements are inserted at the head of the vector and that vector order
> is maintained when elements are removed (ie. it emulates the behaviour
> of the existing pred and succ linked lists).
>
> My understanding is that none of the code in GCC should depend on the
> order of edges in their containers. This is the first time I've
> encountered such behaviour.
Can you post your merge patch so everyone can see what is going on?
Gr.
Steven
prev parent reply other threads:[~2004-09-25 11:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-25 13:22 Ben Elliston
2004-09-25 13:40 ` Zdenek Dvorak
2004-09-25 13:47 ` Ben Elliston
2004-09-25 14:12 ` Zdenek Dvorak
2004-09-25 15:14 ` Ben Elliston
2004-09-25 14:40 ` Steven Bosscher [this message]
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=200409251355.07344.stevenb@suse.de \
--to=stevenb@suse.de \
--cc=bje@au1.ibm.com \
--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).