From: Scott Robert Ladd <coyote@coyotegulch.com>
To: Richard.Earnshaw@arm.com
Cc: Gabriel Dos Reis <gdr@integrable-solutions.net>,
Karel Gardas <kgardas@objectsecurity.com>,
Alexandre Oliva <aoliva@redhat.com>,
Richard Guenther <rguenth@tat.physik.uni-tuebingen.de>,
gcc@gcc.gnu.org
Subject: Re: std::pow implementation
Date: Wed, 30 Jul 2003 16:25:00 -0000 [thread overview]
Message-ID: <3F27EB99.7090407@coyotegulch.com> (raw)
In-Reply-To: <200307301338.h6UDc2p19569@pc960.cambridge.arm.com>
Richard Earnshaw wrote:
> Profiling doesn't help if the answer comes back as "sometimes"
> (function foo's use of bar is best inlined, function wibble's use of
> bar is best not inlined).
Inlining is an optimization; in all but the most obvious and trivial
cases (e.g., simple assignments), it should be performed by a programmer
*after* profiling, and not before. "Premature optimization is the root
of all evil", according to Hoare and Knuth; in code reviews, I tend to
grumble about people who insist on inlining and using cute tricks, when
they haven't done any analysis as to how their choices affect code
quality and performance.
The programmer, not the compiler, has the responsibility to create an
effective program.
--
Scott Robert Ladd
Coyote Gulch Productions (http://www.coyotegulch.com)
Software Invention for High-Performance Computing
next prev parent reply other threads:[~2003-07-30 16:01 UTC|newest]
Thread overview: 214+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-29 11:57 Richard Guenther
2003-07-29 12:10 ` Gabriel Dos Reis
2003-07-29 12:10 ` Richard Guenther
2003-07-29 12:14 ` Gabriel Dos Reis
2003-07-29 12:25 ` Richard Guenther
2003-07-29 12:38 ` Gabriel Dos Reis
2003-07-29 12:44 ` Richard Guenther
2003-07-29 12:49 ` Gabriel Dos Reis
2003-07-30 5:18 ` Alexandre Oliva
2003-07-30 5:26 ` Gabriel Dos Reis
2003-07-30 6:57 ` Alexandre Oliva
2003-07-30 10:11 ` Gabriel Dos Reis
2003-07-30 11:58 ` Richard Earnshaw
2003-07-30 12:11 ` Gabriel Dos Reis
2003-07-30 12:13 ` Steven Bosscher
2003-07-30 12:23 ` Gabriel Dos Reis
2003-07-30 12:31 ` Steven Bosscher
2003-07-30 12:47 ` Gabriel Dos Reis
2003-07-30 13:06 ` Steven Bosscher
2003-07-30 13:22 ` Gabriel Dos Reis
2003-07-30 12:42 ` Richard Guenther
2003-07-30 12:46 ` Gabriel Dos Reis
2003-07-30 13:01 ` Richard Guenther
2003-07-30 13:26 ` Steven Bosscher
2003-07-30 13:38 ` Richard Guenther
2003-07-30 13:49 ` Gabriel Dos Reis
2003-07-30 13:19 ` Karel Gardas
2003-07-30 13:24 ` Gabriel Dos Reis
2003-07-30 13:41 ` Richard Earnshaw
2003-07-30 13:51 ` Gabriel Dos Reis
2003-07-30 13:51 ` Richard Earnshaw
2003-07-30 13:59 ` Gabriel Dos Reis
2003-07-30 14:08 ` Richard Guenther
2003-07-30 14:19 ` Richard Guenther
2003-07-30 14:24 ` Gabriel Dos Reis
2003-07-30 14:48 ` Richard Guenther
2003-07-30 14:55 ` Gabriel Dos Reis
2003-07-30 15:29 ` Richard Guenther
2003-07-31 0:30 ` Richard B. Kreckel
2003-07-30 14:11 ` Richard Earnshaw
2003-07-30 14:26 ` Gabriel Dos Reis
2003-07-30 16:25 ` Scott Robert Ladd [this message]
2003-07-30 13:59 ` Richard Guenther
2003-07-30 14:01 ` Gabriel Dos Reis
2003-07-30 15:45 ` Scott Robert Ladd
2003-07-30 16:50 ` Richard Earnshaw
2003-07-30 16:57 ` Gabriel Dos Reis
2003-07-30 17:42 ` Richard Earnshaw
2003-07-30 18:06 ` Gabriel Dos Reis
2003-07-30 17:02 ` Scott Robert Ladd
2003-07-30 19:31 ` tm_gccmail
2003-07-30 17:32 ` Joe Buck
2003-07-30 6:13 ` gcc do not consider the head file change when compiling??? Mojx
2003-07-30 12:09 ` Gerald Pfeifer
2003-07-30 18:20 ` Zack Weinberg
2003-07-29 12:53 ` std::pow implementation Steven Bosscher
2003-07-29 12:53 ` Gabriel Dos Reis
2003-07-29 12:58 ` Richard Guenther
2003-07-29 12:59 ` Steven Bosscher
2003-07-29 13:05 ` Paolo Carlini
2003-07-29 13:22 ` Richard Guenther
2003-07-29 13:36 ` Steven Bosscher
2003-07-29 14:14 ` Richard Guenther
2003-07-29 14:22 ` Richard Guenther
2003-07-29 13:00 ` Andrew Pinski
2003-07-29 13:28 ` Richard Guenther
2003-07-29 13:59 ` Andrew Pinski
2003-07-29 14:17 ` Gabriel Dos Reis
2003-07-29 13:14 ` Gabriel Dos Reis
2003-07-29 13:14 ` Steven Bosscher
2003-07-29 14:08 ` Gabriel Dos Reis
2003-07-29 14:24 ` Steven Bosscher
2003-07-29 14:24 ` Gabriel Dos Reis
2003-07-29 14:31 ` Gabriel Dos Reis
2003-07-29 14:40 ` Steven Bosscher
2003-07-29 15:11 ` Gabriel Dos Reis
2003-07-29 15:37 ` Michael Matz
2003-07-29 15:59 ` Gabriel Dos Reis
2003-07-29 15:59 ` Michael Matz
2003-07-29 16:05 ` Gabriel Dos Reis
2003-07-29 16:20 ` Rob Taylor
2003-07-29 14:36 ` Gabriel Dos Reis
2003-07-29 15:24 ` Richard Guenther
2003-07-29 16:30 ` Gabriel Dos Reis
2003-07-29 18:35 ` Richard Guenther
2003-07-29 14:51 ` Gabriel Dos Reis
2003-07-29 15:33 ` Steven Bosscher
2003-07-30 5:24 ` Alexandre Oliva
2003-07-30 5:33 ` Gabriel Dos Reis
2003-07-30 6:38 ` Alexandre Oliva
2003-07-30 10:32 ` Gabriel Dos Reis
2003-07-30 10:33 ` Alexandre Oliva
2003-07-30 10:46 ` Gabriel Dos Reis
2003-07-30 11:57 ` Alexandre Oliva
2003-07-30 12:20 ` Gabriel Dos Reis
2003-07-30 15:50 ` Scott Robert Ladd
2003-07-30 15:53 ` Steven Bosscher
2003-07-30 15:53 ` Richard Guenther
2003-07-30 16:01 ` Gabriel Dos Reis
2003-07-30 16:09 ` Steven Bosscher
2003-07-30 16:39 ` Gabriel Dos Reis
2003-07-30 16:17 ` Richard Guenther
2003-07-30 16:24 ` Steven Bosscher
2003-08-04 16:55 ` Bernd Schmidt
2003-08-04 17:08 ` Alexandre Oliva
2003-07-30 10:37 ` Steven Bosscher
2003-07-30 11:31 ` Gabriel Dos Reis
2003-07-30 15:44 ` Scott Robert Ladd
2003-07-30 17:10 ` Joe Buck
2003-07-30 17:32 ` Richard Guenther
2003-07-30 18:22 ` Daniel Berlin
2003-07-30 19:08 ` Richard Guenther
2003-07-30 19:12 ` Daniel Berlin
2003-07-30 17:06 ` Joe Buck
2003-07-30 17:26 ` Gabriel Dos Reis
2003-07-29 19:58 ` Neil Booth
2003-07-29 20:14 ` Gabriel Dos Reis
2003-07-29 20:33 ` Richard Guenther
2003-07-29 20:49 ` Gabriel Dos Reis
2003-07-30 12:55 Stephan T. Lavavej
2003-07-30 12:59 ` Gabriel Dos Reis
2003-07-30 13:13 Martin Reinecke
2003-07-30 13:30 ` Gabriel Dos Reis
2003-07-30 13:40 ` Martin Reinecke
2003-07-30 13:46 ` Andrew Pinski
2003-07-30 13:47 ` Steven Bosscher
2003-07-30 14:32 ` Martin Reinecke
2003-07-30 13:53 ` Gabriel Dos Reis
2003-07-30 14:14 ` Martin Reinecke
2003-07-30 14:33 ` Gabriel Dos Reis
2003-07-30 15:27 ` Martin Reinecke
2003-07-30 15:42 ` Gabriel Dos Reis
2003-07-30 17:38 ` Martin Reinecke
2003-08-04 12:55 ` Theodore Papadopoulo
2003-08-04 13:11 ` Gabriel Dos Reis
2003-08-04 14:32 ` Theodore Papadopoulo
2003-08-04 14:50 ` Gabriel Dos Reis
2003-08-04 14:58 ` Daniel Berlin
2003-07-30 15:56 ` Scott Robert Ladd
2003-07-30 16:16 ` Steven Bosscher
2003-07-30 16:47 ` Scott Robert Ladd
2003-07-30 13:25 Robert Dewar
2003-07-30 13:52 Robert Dewar
2003-07-30 14:02 ` Richard Guenther
2003-07-30 13:56 Robert Dewar
2003-07-30 14:04 ` Richard Guenther
2003-07-30 14:08 ` Gabriel Dos Reis
2003-07-31 2:10 ` Alexandre Oliva
2003-07-31 2:46 ` Gabriel Dos Reis
2003-07-31 6:49 ` Alexandre Oliva
2003-07-31 7:58 ` Gabriel Dos Reis
2003-07-31 8:14 ` Gabriel Dos Reis
2003-07-30 14:04 Robert Dewar
2003-07-30 14:10 ` Gabriel Dos Reis
2003-07-30 14:05 Robert Dewar
2003-07-30 14:14 ` Gabriel Dos Reis
2003-07-30 14:11 Robert Dewar
2003-07-30 14:29 ` Richard Guenther
2003-07-30 14:18 Robert Dewar
2003-07-30 14:31 ` Richard Earnshaw
2003-07-30 14:36 ` Richard Guenther
2003-07-30 14:21 Robert Dewar
2003-07-30 14:44 ` Gabriel Dos Reis
2003-07-30 14:51 ` Paolo Carlini
2003-07-30 16:59 ` Joe Buck
2003-07-30 17:35 ` Richard Earnshaw
2003-07-30 14:25 Robert Dewar
2003-07-30 14:49 ` Gabriel Dos Reis
2003-07-30 16:06 Richard Guenther
2003-07-30 16:37 ` Martin Reinecke
2003-07-30 16:08 Robert Dewar
2003-07-30 16:36 Robert Dewar
2003-07-30 16:49 ` Gabriel Dos Reis
2003-07-30 16:55 ` Scott Robert Ladd
2003-07-30 19:21 ` Felix Lee
2003-07-30 21:49 Robert Dewar
2003-07-30 22:28 Robert Dewar
2003-07-30 22:49 Robert Dewar
2003-07-31 10:19 Martin Reinecke
2003-07-31 10:38 ` Gabriel Dos Reis
2003-07-31 10:54 Richard Guenther
2003-07-31 11:08 ` Gabriel Dos Reis
2003-07-31 11:31 ` Rob Taylor
2003-07-31 14:13 ` Scott Robert Ladd
2003-07-31 14:44 ` Gabriel Dos Reis
2003-07-31 17:24 ` Steven Bosscher
2003-07-31 18:45 ` Scott Robert Ladd
2003-07-31 11:50 Robert Dewar
2003-07-31 12:05 Robert Dewar
2003-07-31 13:00 ` Gabriel Dos Reis
2003-08-04 17:03 Robert Dewar
2003-08-04 17:23 ` Joe Buck
2003-08-04 18:05 ` Richard Earnshaw
2003-08-04 18:15 ` Gabriel Dos Reis
2003-08-04 19:00 ` Bernd Schmidt
2003-08-04 19:12 ` Richard Guenther
2003-08-04 17:33 Robert Dewar
2003-08-04 17:36 ` Joe Buck
2003-08-04 17:38 ` Gabriel Dos Reis
2003-08-04 22:28 ` Mark Hahn
2003-08-04 22:49 ` tm_gccmail
2003-08-04 17:43 Robert Dewar
2003-08-04 17:53 ` Gabriel Dos Reis
2003-08-04 17:48 Robert Dewar
2003-08-04 17:57 ` Gabriel Dos Reis
2003-08-04 18:14 ` Joe Buck
2003-08-04 18:08 Robert Dewar
2003-08-04 18:17 ` Gabriel Dos Reis
2003-08-04 18:21 Robert Dewar
2003-08-04 18:22 Robert Dewar
2003-08-04 18:29 ` Gabriel Dos Reis
2003-08-04 18:42 Robert Dewar
2003-08-04 18:46 ` Gabriel Dos Reis
2003-08-04 22:57 Robert Dewar
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