Messages in this thread | | | Date | Mon, 9 Sep 2002 01:18:33 +0200 | From | Dave Jones <> | Subject | Re: [PATCH 2.4/2.5] Athlon CFLAGS |
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On Sun, Sep 08, 2002 at 09:28:11PM +0200, Daniel Mehrmann wrote: > Hi Alan, > > i add for the AMD Athlon family some optimize compilerflags. > Gcc 3.1 and 3.2 support more specific Athlon instructions as 3.0 or 2.95x. > This patch for 2.4.19, 2.4.20-pre5 and 2.5.33 set a new "-march" flag: > > Athlon TB/Duron += -march=athlon-tbird > Athlon XP/Athlon4/Duron += -march=athlon-xp > Athlon MP += -march=athlon-mp
I thought these were all just gcc aliases for the same options ? It's been a while since I looked at the gcc option parser, so I've forgotten exactly what happens, but at least you missed the bogus athlon-4 option.
Are the gains between all these options really worth the added complexity ?
Dave
-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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