From: dewar@gnat.com (Robert Dewar)
Subject: Re: Ada Compilers
Date: 21 May 2002 18:47:10 -0700
Date: 2002-05-22T01:47:11+00:00 [thread overview]
Message-ID: <5ee5b646.0205211747.1ccd4566@posting.google.com> (raw)
In-Reply-To: afb6d339.0205211331.30124c52@posting.google.com
gab@rational.com (Greg Bek) wrote in message news:<afb6d339.0205211331.30124c52@posting.google.com>...
> sum of products will never overflow. It then discovers that
> the resulting matrix is never used, so it throws out the entire
> matrix multiplication. The surrounding timing loop is now
> timing a null operation.
Right, in one case where GNAT was being compared with another
compiler on this test, both versions were testing the time for
this null loop, and because of an oddity, GNAT took longer.
So we fixed it and then it took shorter. Wonderful, but nothing
at all to do with the intent of the test. The PIWG tests are
very poorly written from this point of view.
next prev parent reply other threads:[~2002-05-22 1:47 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-15 18:55 Ada Compilers David Rasmussen
2002-05-15 19:32 ` Marin David Condic
2002-05-15 20:45 ` Jacob Sparre Andersen
2002-05-15 21:00 ` Marin David Condic
2002-05-15 21:38 ` Pascal Obry
2002-05-15 22:35 ` Kai Schuelke
2002-05-16 10:27 ` Preben Randhol
2002-05-16 10:37 ` Dmitry A. Kazakov
2002-05-16 13:51 ` Martin Dowie
2002-05-16 15:06 ` Ted Dennison
2002-05-17 1:22 ` Robert Dewar
2002-05-17 14:56 ` Ted Dennison
2002-05-17 1:23 ` Robert Dewar
2002-05-16 16:59 ` Pascal Obry
2002-05-16 18:50 ` Kai Schuelke
2002-05-17 1:19 ` Robert Dewar
2002-05-17 13:38 ` [off-topic] "free" Wes Groleau
2002-05-17 14:51 ` Preben Randhol
2002-05-16 15:03 ` Ada Compilers Fraser Wilson
2002-05-16 15:19 ` Florian Weimer
2002-05-16 1:07 ` Florian Weimer
2002-05-16 13:16 ` Marin David Condic
2002-05-17 22:12 ` David Rasmussen
2002-05-19 21:14 ` Jacob Sparre Andersen
2002-05-20 13:28 ` Marin David Condic
2002-05-21 21:31 ` Greg Bek
2002-05-22 1:47 ` Robert Dewar [this message]
2002-05-22 13:52 ` Marin David Condic
2002-05-23 11:01 ` John R. Strohm
2002-05-23 13:29 ` Marin David Condic
2002-05-23 15:50 ` Ted Dennison
2002-05-23 16:39 ` Larry Kilgallen
2002-05-16 2:09 ` Steve Doiel
2002-05-16 10:33 ` Preben Randhol
2002-05-16 10:34 ` Preben Randhol
2002-05-16 11:25 ` David Rasmussen
2002-05-16 12:31 ` Preben Randhol
2002-05-16 13:25 ` David Rasmussen
2002-05-16 13:42 ` Steve Doiel
2002-05-16 14:37 ` David Rasmussen
2002-05-16 19:12 ` Preben Randhol
2002-05-17 15:08 ` Ted Dennison
2002-05-16 13:30 ` Marin David Condic
2002-05-17 8:51 ` Preben Randhol
2002-05-16 17:03 ` Pascal Obry
2002-05-17 15:11 ` Ted Dennison
2002-05-17 16:25 ` Pascal Obry
2002-05-18 7:07 ` Simon Wright
2002-05-18 7:57 ` Pascal Obry
2002-05-19 2:50 ` David Botton
2002-05-17 17:40 ` Preben Randhol
2002-05-18 10:44 ` Jerry van Dijk
2002-05-20 16:55 ` Ted Dennison
2002-05-20 18:47 ` Jerry van Dijk
-- strict thread matches above, loose matches on Subject: below --
2012-11-24 15:55 Ada compilers arkavae
2012-11-24 18:56 ` Niklas Holsti
2012-11-24 18:57 ` Gautier write-only
2005-06-03 18:55 ADA compilers Patty
2005-06-03 19:04 ` Pascal Obry
2005-06-03 19:12 ` Patty
2005-06-03 19:21 ` Dmitry A. Kazakov
2005-06-03 20:37 ` Björn Lundin
2005-06-03 20:25 ` Jeff C
2005-06-03 20:31 ` Keith Thompson
2005-06-03 20:36 ` Björn Lundin
2005-06-04 5:29 ` Jeffrey Carter
2005-06-04 6:32 ` Martin Krischik
2002-05-20 17:39 Ada Compilers David Humphris
[not found] <mailman.1021886521.4259.comp.lang.ada@ada.eu.org>
2002-05-20 16:46 ` Ted Dennison
1997-11-13 0:00 Nathan A. Barclay
1997-11-13 0:00 ` bklungle
1996-06-16 0:00 ADA Compilers A REILLY
1996-06-18 0:00 ` Jon S Anthony
1993-03-14 12:34 Ada Compilers David Leslie Garrard
1991-04-19 15:22 ADA COMPILERS douglassalter@ajpo.sei.cmu.edu,
1990-01-17 18:49 ADA compilers John Ostlund
1989-11-15 23:18 Ada Promises Doug Schmidt
1989-11-16 22:45 ` Ada compilers William Thomas Wolfe, 2847
[not found] <1989Sep <3161@amelia.nas.nasa.gov>
1989-09-29 13:47 ` Ada Compilers Robert Cousins
1989-09-15 20:35 Kelvin W. Edwards
1989-04-11 17:01 ada compilers Kjartan R. Gudmundsson
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