From: "Joseph S. Myers" <jsm28@cam.ac.uk>
To: mike stump <mrs@windriver.com>
Cc: <rth@redhat.com>, <dewar@gnat.com>, <gcc@gcc.gnu.org>
Subject: Re: Loop unroll fixes
Date: Tue, 18 Sep 2001 12:34:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.33.0109182015080.1098-100000@kern.srcf.societies.cam.ac.uk> (raw)
In-Reply-To: <200109181852.LAA22164@kankakee.wrs.com>
On Tue, 18 Sep 2001, mike stump wrote:
> I think that all changes to gcc should come with at least one testcase
> that actually demonstrates why the change was a good idea. If the
In the case of some code cleanup and reorganisation patches (that don't
change user-visible behaviour), of course, there aren't appropriate
testcases (apart possibly from a reduction of the number of warnings
during bootstrap, or an improvement in compile-time performance).
> An non-example would be 112 thousand lines of customer proprietary
> code which changes any time almost anything is played with. Been
> there, done that, not that hard, just time consuming to trim the
> testcase and sanitize it.
A harder case might be where the bug was shown up by a small testcase from
a proprietary testsuite (see e.g.
<URL: http://gcc.gnu.org/ml/gcc-patches/1998-11/msg00257.html >). Do we
have any legal guidance on what is and is not safe to do in such cases?
--
Joseph S. Myers
jsm28@cam.ac.uk
next prev parent reply other threads:[~2001-09-18 12:34 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-18 11:54 mike stump
2001-09-18 12:34 ` Joseph S. Myers [this message]
2001-09-19 11:28 ` Joe Buck
2001-09-24 9:31 ` law
-- strict thread matches above, loose matches on Subject: below --
2001-10-10 1:12 Wolfgang Bangerth
2001-10-10 1:16 ` Mark Mitchell
2001-10-10 5:14 ` Franz Sirl
2001-10-10 11:08 ` Mark Mitchell
2001-09-18 17:36 Richard Kenner
2001-09-18 10:47 Benjamin Kosnik
2001-09-18 4:16 Richard Kenner
[not found] <200109142021.QAA26236@makai.watson.ibm.com>
2001-09-15 8:57 ` Bernd Schmidt
2001-09-17 13:16 ` Richard Henderson
2001-09-17 14:24 ` Joe Buck
2001-09-17 15:11 ` Richard Henderson
2001-09-17 17:22 ` Mark Mitchell
2001-09-18 2:19 ` Joseph S. Myers
[not found] <Pine.LNX.4.33.0109141957550.29416-100000@host140.cambridge.redhat.com>
2001-09-14 14:36 ` David Edelsohn
2001-09-13 16:35 Zoltan Hidvegi
2001-09-13 18:58 ` David Edelsohn
2001-09-13 23:50 ` Jim Wilson
2001-09-14 6:55 ` Daniel Berlin
2001-09-14 12:15 ` Joseph S. Myers
2001-09-14 16:45 ` Jim Wilson
2001-09-14 20:11 ` David Edelsohn
2001-09-14 22:23 ` Jim Wilson
2001-09-15 2:42 ` Bernd Schmidt
2001-09-14 21:16 ` Daniel Berlin
2001-09-14 9:41 ` David Edelsohn
2001-09-14 10:46 ` Bernd Schmidt
2001-09-14 11:47 ` David Edelsohn
2001-09-14 17:54 ` Jim Wilson
2001-09-14 18:35 ` David Edelsohn
2001-09-14 19:56 ` Jim Wilson
2001-09-15 2:56 ` Joseph S. Myers
2001-10-04 6:46 ` Franz Sirl
2001-10-04 7:40 ` Mark Mitchell
2001-10-04 20:46 ` Jim Wilson
2001-10-04 20:51 ` Mark Mitchell
2001-10-04 23:10 ` Zoltan Hidvegi
2001-10-10 0:05 ` Mark Mitchell
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