Re: [PATCH v2] Add bit operations util header

From: Florian Weimer <fweimer(at)bfk(dot)de>
To: Jeremy Kerr <jk(at)ozlabs(dot)org>
Cc: <pgsql-hackers(at)postgresql(dot)org>, Atsushi Ogawa <a_ogawa(at)hi-ho(dot)ne(dot)jp>
Subject: Re: [PATCH v2] Add bit operations util header
Date: 2009-06-03 09:54:37
Message-ID: 82k53t3an6.fsf@mid.bfk.de
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* Jeremy Kerr:

> +#if defined(__GNUC__) && \
> + (defined(__ppc__) || defined(__powerpc__) || \
> + defined(__ppc64__) || defined (__powerpc64__))

If you require GCC anyway, you can use __builtin_clz instead.
(It's been available since GCC 4.1 at least.)

--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99

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