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Re: Effect of -fno-reorder-blocks?
- From: Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>
- To: jh at suse dot cz
- Cc: hans-peter dot nilsson at axis dot com, dnovillo at redhat dot com, aj at suse dot de, gcc at gcc dot gnu dot org
- Date: Mon, 18 Nov 2002 21:49:26 +0100
- Subject: Re: Effect of -fno-reorder-blocks?
> Date: Mon, 18 Nov 2002 20:21:37 +0100
> From: Jan Hubicka <jh@suse.cz>
I (H-P) wrote:
> > the SPEC95 result seems is
> > conclusive; if -fno-reorder-blocks really was of any *general*
> > positive effect (i.e. if the code conditioned by
> > flag_reorder_blocks caused general pessimization), it should be
> > visible in those results.
> P4's trace cache should be, theoretically, completely immune about the
> code layout, so it is not best testing platform.
It's a P3, says Diego's page. Not that I know if it matters...
brgds, H-P