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From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Announcing GNAT version 3.12p for Linux and Sparc Solaris
Date: 1999/10/31
Date: 1999-10-31T00:00:00+00:00	[thread overview]
Message-ID: <7vhilv$91k$1@nnrp1.deja.com> (raw)
In-Reply-To: MAHS3.31$rV4.3386@typhoon.nyu.edu

In article <MAHS3.31$rV4.3386@typhoon.nyu.edu>,
  kenner@lab.ultra.nyu.edu (Richard Kenner) wrote:
> (2) Debug the resulting compiler by runing ACVC and various
> other tes suites.  This will undoubtably uncover not just bugs
> in the two steps above but also bugs in other GCC changes
> (including the new optimizers) that only affect Ada code.

Or, probably more likely, only show up (so far) in Ada code.
We apply a rather strenuous set of tests to any new version of
GNAT, including the ACVC tests, and of course in the process,
any new version of GCC is rather thoroughly tested. Quite often
this testing has shown up bugs which can indeed appear in GNU C
or G++ programs, but have not shown up so far. That's not so
suprising, the main core of the GCC code generator is pretty
reliable at this stage, so code generation bugs do not show
up often in any case, and when they do, it is often in fairly
obscure cases. What can happen is that GNAT tends to use a
specific feature of GCC more aggressively than GNU C, e.g.
nested procedures, which are allowed in GNU C, but FAR more
frequently used in GNAT!

Robert Dewar
Ada Core Technologies


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  reply	other threads:[~1999-10-31  0:00 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-10-19  0:00 Announcing GNAT version 3.12p for Linux and Sparc Solaris Robert Dewar
1999-10-19  0:00 ` Vincent Marciante
1999-10-21  0:00   ` Tim Erickson
1999-10-22  0:00     ` mitch
1999-10-23  0:00       ` Tim Erickson
1999-10-23  0:00         ` Kent Paul Dolan
1999-10-23  0:00           ` Aidan Skinner
1999-10-24  0:00           ` David Botton
1999-10-24  0:00             ` Robert Dewar
1999-10-24  0:00               ` Tim Erickson
1999-10-23  0:00     ` Robert Dewar
1999-10-23  0:00       ` Tim Erickson
1999-10-20  0:00 ` mitch
1999-10-20  0:00 ` bourguet
1999-10-21  0:00 ` Andrew Lynch
1999-10-21  0:00 ` Alfred Hilscher
1999-10-21  0:00 ` Robert Dewar
1999-10-21  0:00   ` Jeff Creem
1999-10-23  0:00     ` Robert Dewar
1999-10-21  0:00 ` Jean-Pierre Rosen
1999-10-21  0:00   ` Aidan Skinner
1999-10-23  0:00     ` Robert Dewar
1999-10-24  0:00       ` Aidan Skinner
1999-10-24  0:00         ` Ada and OS/2 Robert Dewar
1999-10-22  0:00 ` Announcing GNAT version 3.12p for Linux and Sparc Solaris Chris Morgan
1999-10-23  0:00 ` James E. Hopper
1999-10-24  0:00   ` Matthew Heaney
1999-10-24  0:00     ` James E. Hopper
1999-10-26  0:00       ` Ronald Cole
1999-10-27  0:00         ` Robert Dewar
1999-10-28  0:00           ` Vladimir Olensky
1999-10-30  0:00       ` Richard Kenner
1999-10-31  0:00         ` Robert Dewar [this message]
1999-10-24  0:00     ` Robert Dewar
1999-10-24  0:00     ` Samuel Tardieu
1999-10-24  0:00   ` James E. Hopper
1999-10-25  0:00     ` Samuel Tardieu
1999-10-26  0:00     ` Robert Dewar
1999-10-26  0:00       ` James E. Hopper
1999-10-27  0:00         ` Robert Dewar
1999-10-27  0:00           ` Jean-Pierre Rosen
1999-10-28  0:00 ` Robert Dewar
1999-10-28  0:00   ` David Botton
1999-10-29  0:00   ` Ted Dennison
1999-10-31  0:00     ` Robert Dewar
1999-10-31  0:00   ` GNAT 3.12p NT/Win98 Was: " Vladimir Olensky
1999-11-01  0:00     ` Vladimir Olensky
1999-11-02  0:00     ` Robert Dewar
1999-11-02  0:00       ` Vladimir Olensky
1999-11-01  0:00 ` Announcing GNAT version 3.12p for HPUX Robert Dewar
1999-11-01  0:00   ` Announcing GNAT version 3.12p for Powermac Robert Dewar
1999-11-01  0:00   ` Announcing GNAT version 3.12p for Solaris x86 Robert Dewar
1999-11-01  0:00   ` Announcing GNAT version 3.12p for Power PC AIX Robert Dewar
1999-11-01  0:00   ` Announcing GNAT version 3.12p for Powermac Robert Dewar
1999-11-01  0:00     ` David Botton
1999-11-01  0:00   ` Announcing GNAT version 3.12p for HPUX Robert Dewar
1999-11-03  0:00 ` Announcing GNAT version 3.12p for DEC Unix Robert Dewar
1999-11-03  0:00 ` Announcing GNAT version 3.12p for OS/2 Robert Dewar
1999-11-02  0:00   ` Vincent Marciante
1999-11-03  0:00     ` Tim Erickson
1999-11-03  0:00   ` Bill Eriksson
1999-11-03  0:00   ` Alfred Hilscher
1999-11-03  0:00   ` Larry Kilgallen
1999-11-03  0:00     ` Robert Dewar
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