Jakub's Recommendations for ia32 Support
Ulrich Drepper
drepper at redhat.com
Wed Feb 4 16:50:37 UTC 2009
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Pádraig Brady wrote:
> -march=i686 is better than i586, but is it the best.
> I though -march=prescott was optimal for atom?
The Atom core has nothing to do with the Core2 or P4 or any other core.
Whoever told you Prescott is optimal doesn't know what s/he's talking
about. All cores after the i586 are out-of-order cores, the Atom is an
in-order. This should show you how silly that statement is.
We are still waiting for Intel to disclose the details about the
micro-architecture. There is no backend support in gcc yet.
- --
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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