This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: [BusyBox] Re: Long term code compactness regression
- To: jh at suse dot cz, pcarlini at unitus dot it
- Subject: Re: [BusyBox] Re: Long term code compactness regression
- From: mike stump <mrs at windriver dot com>
- Date: Tue, 30 Oct 2001 11:49:21 -0800 (PST)
- Cc: gcc at gcc dot gnu dot org
> Date: Sun, 28 Oct 2001 19:54:15 +0100
> From: Paolo Carlini <pcarlini@unitus.it>
> To: Jan Hubicka <jh@suse.cz>
> CC: gcc@gcc.gnu.org
> Jan, sorry for my pedantry, but I have ready at hand a very short
> and basic c++ testcode (reduced from the Haney tests) which today is
> 2 times (!) slower than one week ago on i686 (-O2)... Do you have
> time to look a little bit at it? Here it is (PR4714 for some more
> details):
Have you binary searched the changes and identified the change that
blew performance? If not, that would be a big help in identifying
what went wrong. If you have, it helps to name the patch that blew
performance in this type of email.