This is the mail archive of the
glibc-bugs@sourceware.org
mailing list for the glibc project.
[Bug math/5781] Slow sine function for special values on AMD64 - second attempt
- From: "joseph at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 21 Feb 2008 17:09:30 -0000
- Subject: [Bug math/5781] Slow sine function for special values on AMD64 - second attempt
- References: <20080221091038.5781.grugh@centrum.cz>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From joseph at codesourcery dot com 2008-02-21 17:09 -------
Subject: Re: Slow sine function for special values on AMD64
- second attempt
On Thu, 21 Feb 2008, jakub at redhat dot com wrote:
> which ensures <= 0.5ulp error. Trigonometric etc. functions are
> computed using floating point computations, but if the possible error
> from that is too high, it uses slower multiprecision computation to
> guarantee ultimate precise result. Guess you just picked some worst-case
> values.
Note that the crlibm developers were willing to contribute their code, an
advantage of which is *much* better worst-case performance.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=5781
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.