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SubjectRe: [patch 4/21] fix ARCH_HAS_PREFETCH

On Sun, 11 Aug 2002, Andrew Morton wrote:
>
> It's actually a special-case inside the compiler to not optimise
> away such constructs.

I thought that special case was removed long ago, because it is untenable
in C++ etc (where such empty loops happen due to various abstraction
issues, and not optimizing them away is just silly).

But testing shows that you're right at least for 2.95 and 2.96. Argh

Linus

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