Re: [PATCH] speed up on find_first_bit for i386 (let compiler dothe work)

From: Linus Torvalds
Date: Thu Jul 28 2005 - 12:28:27 EST

On Thu, 28 Jul 2005, Maciej W. Rozycki wrote:
> Since you're considering GCC-generated code for ffs(), ffz() and friends,
> how about trying __builtin_ffs(), __builtin_clz() and __builtin_ctz() as
> apropriate?

Please don't. Try again in three years when everybody has them.

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