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RE: [patch] tuning gcc for Intel Core2
- From: "Meissner, Michael" <michael dot meissner at amd dot com>
- To: "H. J. Lu" <hjl at lucon dot org>, "Vladimir Makarov" <vmakarov at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org, jh at suse dot cz
- Date: Tue, 12 Dec 2006 13:54:34 -0500
- Subject: RE: [patch] tuning gcc for Intel Core2
> -----Original Message-----
> Given that rep_movl_optimal improves 176.gcc significantly with the
> old memory fuctions and doesn't have no significant negative impact
> with optimized memory functions, I think we should turn it on for
> m_GENERIC64. We can always fine tune rep_movl_optimal later.
Have you measured the performance on AMD systems with the old/new memory
functions? Generic is supposed to be a compromise between all of the
major x86/x86_64 platforms.