[PATCH] powerpc: tiny memcpy_(to|from)io optimisation

Albrecht Dreß albrecht.dress at arcor.de
Thu Jun 4 04:35:26 EST 2009


Am 03.06.09 16:36 schrieb(en) Kenneth Johansson:
> On an e300 core using the lwzu/stwu is about 20% faster so at least  
> one core prefer that optimization.

Bingo.  The '5200 on my test system has that core.  So "-mcpu=603e"  
should select this strategy!

Cheers, Albrecht.

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