This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Splitting of virtual definitions (aka. V_MUST_DEF)
- From: Geert Bosch <bosch at gnat dot com>
- To: Brian Booth <bbooth at redhat dot com>
- Cc: GCC-Patches <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 7 Jun 2004 13:29:19 -0400
- Subject: Re: [PATCH] Splitting of virtual definitions (aka. V_MUST_DEF)
- References: <1086615906.16539.14360.camel@toss-off.toronto.redhat.com>
On Jun 7, 2004, at 09:45, Brian Booth wrote:
WITH_PATCH WITHOUT_PATCH
real 48m24.896s 48m18.499s
user 37m57.030s 37m37.460s
sys 6m10.790s 6m5.690s
There is a slow down of about six seconds but I feel that this can be
overcome with future tuning of the optimization passes to take
advantage
of the V_MUST_DEF construct (dse for example).
It is 25 seconds, 20 seconds in user time and 5 for the system.
That seems like a very large increase, which would need some
more justification.
-Geert