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Re: [rtl-optimization] Improve Data Prefetch for IA-64
- From: Gerald Pfeifer <gerald at pfeifer dot com>
- To: James E Wilson <wilson at specifixinc dot com>
- Cc: Steven Bosscher <stevenb at suse dot de>, gcc-patches at gcc dot gnu dot org,gcc at gcc dot gnu dot org
- Date: Sun, 3 Apr 2005 23:07:03 +0200 (CEST)
- Subject: Re: [rtl-optimization] Improve Data Prefetch for IA-64
- References: <20050326012212.DCE335B9AC@ds20.nudt.edu.cn> <200503260217.58801.stevenb@suse.de><42489B64.3080301@specifixinc.com>
On Mon, 28 Mar 2005, James E Wilson wrote:
> Steven Bosscher wrote:
>> OK, so I know this is not a popular subject, but can we *please* stop
>> working on loop.c and focus on getting the new RTL and tree loop passes
>> to do what we want?
> I don't think anyone is objecting to this. [...]
> I would however make a distinction here between new development work and
> maintenance. It would be better if new development work happened in the new
> loop optimizer. However, we still need to do maintenance work in loop.c.
...and since Canqun reported 2.5% improvement on SPEC CFP2000 on ia64 with
his current patch, I really think we should consider it.
We all know how hard it is to get this kind of improvement on any of the
SPECs -- and in fact improving the current optimizers will make raise the
bar for the new ones. ;-)
Question is: who is going review/potentially approve this patch?
Gerald