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Re: GCC 3.4.0 20040114 + GCC 3.3.2 compile-time performance comparisonon MICO project sources.
- From: Gerald Pfeifer <gp at suse dot de>
- To: Karel Gardas <kgardas at objectsecurity dot com>
- Cc: Eric Christopher <echristo at redhat dot com>,GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Mon, 19 Jan 2004 21:01:35 +0100 (CET)
- Subject: Re: GCC 3.4.0 20040114 + GCC 3.3.2 compile-time performance comparisonon MICO project sources.
- References: <Pine.LNX.4.43.0401192053150.8443-100000@thinkpad.wg-ro-gar1.inext.cz>
On Mon, 19 Jan 2004, Karel Gardas wrote:
> OK, I have thought that the -O0 -g (perhaps) build is the most important
> from compile-time performance view, as it is probably used for
> development...
Just as an example, in DLV (origin of PR8361) I switched to -O1 years
ago because that was _faster_ than -O0 at that time, debugging was still
okay, and test runs with the generated binary were much faster.
-O0 really is not too useful in some contexts.
Gerald
--
Gerald Pfeifer <gp@suse.de> Technical Project Manager, SUSE Linux AG