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From: "carlos at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug math/14412] Removal of sysdeps/x86_64/fpu/s_sincos.S causes regressions
Date: Thu, 25 Apr 2013 23:35:00 -0000 [thread overview]
Message-ID: <bug-14412-131-Lvkp0oY7v8@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-14412-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14412
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |liubov.dmitrieva at gmail
| |dot com, spoyarek at redhat
| |dot com
--- Comment #10 from Carlos O'Donell <carlos at redhat dot com> 2013-04-25 23:35:51 UTC ---
(In reply to comment #9)
> this is critical bug
> it shouldn't be marked as enhancement
If we fix sinf to be fast again it will be imprecise which is a critical bug
for another class of users. There is no implementation that can satisfy all
requirements from all users. At the very least the precise implementation is at
least correct if slow. Therefore this is an enhancement request to make the
implementation fast.
We are working on the possibility of having 3 libm variants, fast, default, and
precise. At that point -ffast-math will select the fast variant and provide a
fast but imprecise implementation.
Until then we need help looking into these performance issues to see if we can
relax the feraiseexcept in some cases or optimize the code to call it less
times.
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next prev parent reply other threads:[~2013-04-25 23:35 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-26 21:08 [Bug math/14412] New: Removal of sysdeps/x86_64/fpu/s_sincos.S causes pdf rendering time regression markus at trippelsdorf dot de
2012-07-26 21:09 ` [Bug math/14412] " markus at trippelsdorf dot de
2012-07-26 21:14 ` markus at trippelsdorf dot de
2012-07-27 6:44 ` aj at suse dot de
2012-07-27 7:18 ` markus at trippelsdorf dot de
2012-07-27 12:33 ` markus at trippelsdorf dot de
2012-07-28 22:15 ` bugdal at aerifal dot cx
2012-08-03 3:51 ` carlos_odonell at mentor dot com
2012-08-09 10:14 ` markus at trippelsdorf dot de
2012-08-19 9:31 ` markus at trippelsdorf dot de
2012-08-19 9:37 ` [Bug math/14412] Removal of sysdeps/x86_64/fpu/s_sincos.S causes regressions markus at trippelsdorf dot de
2012-12-03 22:13 ` davem at davemloft dot net
2012-12-04 0:00 ` carlos at systemhalted dot org
2013-04-25 21:48 ` wbrana at gmail dot com
2013-04-25 23:35 ` carlos at redhat dot com [this message]
2013-04-25 23:58 ` bugdal at aerifal dot cx
2013-04-26 0:14 ` bugdal at aerifal dot cx
2013-04-26 2:55 ` siddhesh at redhat dot com
2013-04-26 3:08 ` bugdal at aerifal dot cx
2013-04-26 3:50 ` siddhesh at redhat dot com
2013-04-26 6:29 ` markus at trippelsdorf dot de
2013-04-26 6:40 ` jakub at redhat dot com
2013-04-26 10:00 ` siddhesh at redhat dot com
2013-04-26 11:31 ` joseph at codesourcery dot com
2013-04-26 11:33 ` joseph at codesourcery dot com
2013-04-26 11:42 ` siddhesh at redhat dot com
2013-04-26 13:52 ` bugdal at aerifal dot cx
2013-04-26 13:55 ` bugdal at aerifal dot cx
2013-04-26 15:07 ` joseph at codesourcery dot com
2013-04-26 15:20 ` wbrana at gmail dot com
2013-04-29 10:29 ` siddhesh at redhat dot com
2013-04-29 10:50 ` wbrana at gmail dot com
2013-04-29 11:55 ` bugdal at aerifal dot cx
2013-04-29 12:32 ` wbrana at gmail dot com
2013-04-29 13:21 ` Ondřej Bílka
2013-04-29 13:21 ` neleai at seznam dot cz
2013-04-29 13:28 ` bugdal at aerifal dot cx
2013-04-29 14:04 ` Ondřej Bílka
2013-04-29 13:32 ` bugdal at aerifal dot cx
2013-04-29 13:36 ` wbrana at gmail dot com
2013-04-29 13:44 ` siddhesh at redhat dot com
2013-04-29 13:51 ` bugdal at aerifal dot cx
2013-04-29 14:04 ` neleai at seznam dot cz
2013-04-29 14:19 ` siddhesh at redhat dot com
2013-04-29 14:29 ` markus at trippelsdorf dot de
2013-04-29 14:48 ` bugdal at aerifal dot cx
2013-04-29 16:29 ` Ondřej Bílka
2013-04-29 16:29 ` neleai at seznam dot cz
2013-04-29 17:30 ` bugdal at aerifal dot cx
2013-04-29 20:58 ` joseph at codesourcery dot com
2013-04-30 5:41 ` siddhesh at redhat dot com
2013-04-30 21:37 ` bugdal at aerifal dot cx
2013-05-01 22:25 ` bugdal at aerifal dot cx
2013-07-16 20:08 ` nshmyrev at yandex dot ru
2013-09-07 6:55 ` carlos at redhat dot com
2014-02-06 18:31 ` jsm28 at gcc dot gnu.org
2014-06-17 18:55 ` fweimer at redhat dot com
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