Re: [PATCH] trivial: the memset operation on a automatic array variable should be optimized out by data initialization

From: Benjamin LaHaise
Date: Sun Jun 24 2007 - 19:23:39 EST


On Sun, Jun 24, 2007 at 03:15:17PM -0700, Arjan van de Ven wrote:
> we should just alias our memset to the __builtin one, and then provide a
> generic one from lib/ for the cases gcc needs to do a fallback.

The last time I checked, gcc generated horrible badly performing code for
builtin memset/memcpy() when -Os is specified.

-ben
--
"Time is of no importance, Mr. President, only life is important."
Don't Email: <zyntrop@xxxxxxxxx>.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/