From: Joseph Myers <joseph@codesourcery.com>
To: Martin Sebor <msebor@gmail.com>
Cc: Alexander Monakov <amonakov@ispras.ru>,
Gcc Patch List <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] clarify documentation of -Q --help=optimizers
Date: Thu, 05 Nov 2015 17:11:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.10.1511051707030.26133@digraph.polyomino.org.uk> (raw)
In-Reply-To: <563B7CA1.6080801@gmail.com>
On Thu, 5 Nov 2015, Martin Sebor wrote:
> optimiziation. We seem to have consensus that even though there
> might be exceptions (do we know what some of them are?) the vast
> majority optimizations that have -fxxx options are in fact not
> performed at -O0. I think reflecting that in the output is more
> helpful than implying otherwise.
There are several options marked Optimization that are actually matters of
language semantics that I don't think have anything to do with -O options,
e.g. -fexceptions and -fcx-limited-range. The Optimization tag really
just means that it's saved and restored under certain circumstances.
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2015-11-05 17:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <56299713.6040204@gmail.com>
2015-10-23 3:56 ` Martin Sebor
2015-11-02 21:48 ` [PING] " Martin Sebor
2015-11-03 10:19 ` Alexander Monakov
2015-11-04 23:52 ` Martin Sebor
2015-11-05 0:54 ` Joseph Myers
2015-11-05 10:48 ` Alexander Monakov
2015-11-05 15:58 ` Martin Sebor
2015-11-05 17:09 ` Segher Boessenkool
2015-11-05 21:04 ` Martin Sebor
2015-11-05 23:30 ` Segher Boessenkool
2015-11-06 1:25 ` Martin Sebor
2015-11-05 17:11 ` Joseph Myers [this message]
2015-11-05 17:47 ` Martin Sebor
2015-11-05 18:07 ` Joseph Myers
2015-11-05 18:45 ` Martin Sebor
2015-11-05 18:47 ` Joseph Myers
2015-11-05 1:09 ` Sandra Loosemore
2015-11-05 2:40 ` Martin Sebor
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