From: "Richard W.M. Jones" <rich@annexia.org>
To: Dario Teixeira <darioteixeira@yahoo.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Re: Binary logarithm of a power of 2
Date: Sat, 28 May 2011 16:58:40 +0100 [thread overview]
Message-ID: <20110528155839.GA9002@annexia.org> (raw)
In-Reply-To: <165028.34675.qm@web111509.mail.gq1.yahoo.com>
On Fri, May 27, 2011 at 11:04:16AM -0700, Dario Teixeira wrote:
> Note that __builtin_ctz actually translates into a single opcode where
> available (BSFL in x86_64), and I expect that a modern CPU will do a
> decent job with it. Therefore, despite that a C-based solution will
> most likely prevent inlining (right?), it may be hard to beat...
It's long been on my OCaml wishlist (along with a 'return' statement)
to be able to use inline asm.
Rich.
--
Richard Jones
Red Hat
next prev parent reply other threads:[~2011-05-28 15:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-26 15:51 [Caml-list] " Dario Teixeira
2011-05-26 19:28 ` Goswin von Brederlow
2011-05-27 11:50 ` Dario Teixeira
2011-05-27 13:26 ` [Caml-list] " Sylvain Le Gall
2011-05-27 17:15 ` Xavier Leroy
2011-05-27 18:04 ` Dario Teixeira
2011-05-27 18:37 ` Till Varoquaux
2011-05-27 18:46 ` Till Varoquaux
2011-05-28 0:28 ` Harrison, John R
2011-05-28 15:58 ` Richard W.M. Jones [this message]
2011-05-28 16:04 ` Edgar Friendly
2011-05-28 17:50 ` Matteo Frigo
[not found] ` <BANLkTimtMZvoBKHznBYH91czci=YdiRcog@mail.gmail.com>
2011-05-28 21:13 ` Fwd: " Johannes
2011-05-30 11:48 ` Jean-Christophe Filliâtre
2011-05-27 17:21 Dario Teixeira
2011-05-28 5:29 ` Gabriel Kerneis
2011-05-28 16:17 ` Norman Hardy
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