Re: [patch 4/21] fix ARCH_HAS_PREFETCH

H. Peter Anvin (hpa@zytor.com)
Tue, 13 Aug 2002 15:42:05 -0700

Adrian Bunk wrote:
>
> Ah, my misunderstanding:
> "optimize away" didn't mean "completely remove it" but "transform it to
> something semantically equivalent".
>

The thing is that gcc has a special rule that keeps it from optimizing
it into something with less than O(n) time.

-=hpa

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