From: Per Abrahamsen <abraham@dina.kvl.dk>
To: gcc@gcc.gnu.org
Subject: Re: GCC beaten by ICC in stupid trig test!
Date: Tue, 16 Mar 2004 08:45:00 -0000 [thread overview]
Message-ID: <rj8yi19o5r.fsf@sheridan.dina.kvl.dk> (raw)
In-Reply-To: <20040315160650.7DFD7F2D9C@nile.gnat.com>
dewar@gnat.com (Robert Dewar) writes:
> Indeed if any programmer writes sin**2+cos**2, one can assume that the
> intention is precisely to get the computed value that may not be 1.0. If
> the programmer wants 1.0, they can write it explicitly!
Not really, the sin**2+cos**2 may often be more readable, and may be
hidden behind some inlined functions.
Please do not assume that "real arithmetic" optimizations have already
been performed by the programmer by hand. And please do not
discourage people from implementing them. If you must, insist they
are only enabled by a flag for use by those of us who want the
compiler to do such optimizations.
next prev parent reply other threads:[~2004-03-16 8:45 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-15 16:06 Robert Dewar
2004-03-16 8:45 ` Per Abrahamsen [this message]
2004-03-17 0:09 ` Robert Dewar
2004-03-17 0:36 ` Scott Robert Ladd
2004-03-17 5:53 ` Gabriel Dos Reis
2004-03-17 7:21 ` Robert Dewar
2004-03-17 9:10 ` Gabriel Dos Reis
2004-03-21 16:55 ` Robert Dewar
2004-03-23 19:38 ` Joe Buck
2004-03-23 19:58 ` Gabriel Dos Reis
2004-03-23 20:49 ` Laurent GUERBY
2004-03-24 8:17 ` Toon Moene
2004-03-24 13:50 ` Robert Dewar
2004-03-24 18:25 ` Paul Koning
2004-03-24 18:51 ` Robert Dewar
2004-03-25 18:18 ` Per Abrahamsen
2004-03-27 1:26 ` Robert Dewar
2004-03-24 18:56 ` Joe Buck
2004-03-24 19:10 ` Robert Dewar
2004-03-24 19:14 ` Richard Guenther
2004-03-24 19:39 ` Paul Brook
2004-03-24 19:45 ` Dave Korn
2004-03-24 20:57 ` Paul Brook
2004-03-25 6:14 ` Robert Dewar
2004-03-25 18:32 ` Scott Robert Ladd
2004-03-27 1:28 ` Robert Dewar
2004-03-17 14:51 ` Per Abrahamsen
2004-03-17 15:18 ` Gabriel Dos Reis
2004-03-17 16:05 ` Per Abrahamsen
2004-03-16 12:14 ` Scott Robert Ladd
2004-03-17 0:19 ` Robert Dewar
-- strict thread matches above, loose matches on Subject: below --
2004-03-25 16:51 Wolfgang Bangerth
2004-03-24 19:04 Bradley Lucier
2004-03-24 19:29 ` Joe Buck
2004-03-24 19:43 ` Bradley Lucier
2004-03-24 19:50 ` Joe Buck
2004-03-24 23:48 ` Toon Moene
2004-03-25 0:02 ` Toon Moene
2004-03-25 0:11 ` Roger Sayle
2004-03-25 5:56 ` Scott Robert Ladd
2004-03-25 6:07 ` Bradley Lucier
2004-03-25 8:18 ` Robert Dewar
2004-03-25 16:15 ` Roger Sayle
2004-03-25 16:36 ` David Edelsohn
2004-03-25 17:09 ` Scott Robert Ladd
2004-03-25 17:47 ` David Edelsohn
2004-03-25 18:03 ` Scott Robert Ladd
2004-03-26 1:29 ` Toon Moene
2004-03-27 0:23 ` Daniel Egger
2004-03-27 0:50 ` Laurent GUERBY
2004-03-27 0:55 ` Joe Buck
2004-03-27 0:58 ` Laurent GUERBY
2004-03-27 1:16 ` Joe Buck
2004-03-25 5:36 ` Gabriel Dos Reis
2004-03-25 8:46 ` Robert Dewar
2004-03-25 5:34 ` Gabriel Dos Reis
2004-03-25 7:24 ` Robert Dewar
2004-03-25 8:28 ` Gabriel Dos Reis
2004-03-25 18:19 ` Per Abrahamsen
2004-03-24 20:14 ` Paul Koning
2004-03-24 21:00 ` Joe Buck
2004-03-24 22:20 ` Dale Johannesen
2004-03-24 21:07 ` Joseph S. Myers
2004-03-24 21:38 ` Joe Buck
2004-03-24 21:44 ` Joe Buck
2004-03-24 22:49 ` Joseph S. Myers
2004-03-24 22:19 ` Richard Guenther
2004-03-24 22:21 ` Dale Johannesen
2004-03-25 7:29 ` Robert Dewar
2004-03-14 23:40 GCC viciously beaten by ICC in " Scott Robert Ladd
2004-03-15 0:12 ` GCC beaten by ICC in stupid " Andrew Pinski
2004-03-15 0:32 ` Paolo Carlini
2004-03-15 1:31 ` Scott Robert Ladd
2004-03-15 2:36 ` Scott Robert Ladd
2004-03-15 11:25 ` Paolo Carlini
2004-03-15 11:31 ` Paolo Carlini
2004-03-15 13:29 ` Zdenek Dvorak
2004-03-15 13:42 ` Paolo Carlini
2004-03-15 13:51 ` Zdenek Dvorak
2004-03-15 13:55 ` Paolo Carlini
2004-03-15 14:00 ` Zdenek Dvorak
2004-03-15 14:05 ` Joseph S. Myers
2004-03-15 14:13 ` Paolo Carlini
2004-03-15 14:18 ` Zdenek Dvorak
2004-03-15 14:29 ` Segher Boessenkool
2004-03-15 14:28 ` Joseph S. Myers
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