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From: bugzilla-daemon@bugs.ecos.sourceware.org
To: ecos-patches@ecos.sourceware.org
Subject: [Bug 1001539] Single precision floating point math library
Date: Sun, 09 Jun 2013 18:23:00 -0000	[thread overview]
Message-ID: <bug-1001539-104-K5YwP5v19Z@http.bugs.ecos.sourceware.org/> (raw)
In-Reply-To: <bug-1001539-104@http.bugs.ecos.sourceware.org/>

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http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001539

--- Comment #35 from Ilija Kocho <ilijak@siva.com.mk> ---
(In reply to comment #33)
> Created attachment 2255 [details]
> Inline some portable API functions for IEEE only option (incremental)
> 
> Here is a proposal for optimisation of some functions for both space and
> speed. If CYGSEM_LIBM_COMPAT_IEEE_ONLY compatibility option is selected then
> portable API (wrapper) functions became trivial and can be inlined. Inlining

Correction: it's ieee754-api, not portable-api!

> eliminates one step of indirection, producing faster code. The generated
> code in total, is also shorter. At present following portable APIs are
> inlined: atan2/atan2f and hypot/hypotf. The reason for this selection is
> that they are used by basic complex carg/cargf and cabs/cabsf operations
> respectively.
> Inlining option is user selectable and is disabled by default in order to
> preserve backward compatibility
> 
> Here we come to complex number support. My initial intention was to enable
> only basic operations: argument, abs value, conjugation, real and imaginary
> parts (some of them trivial/builtin). However it turned out that complete
> complex library (taken from Newlib) compiled without warnings - almost
> verbatim. Therefore I decided to submit complete complex library as well.
> Most functions are unaltered - hence original copyright banners are
> preserved. The ones that I have altered are (however trivial) different
> enough to publish them under eCos licence. That includes: carg, cabs, conj,
> creal and cimag - all double and float.
> Arguably the complex support could be subject to a separate bug, but IMO it
> fits here well in context of previous paragraph. It is easy to change the
> topic of this bug accordingly.
> 
> Note: This attachment is incremental to 1656+1657+1658 patch collection. It
> does not contain complex functions body. That will be posted in a patch that
> follows.
> 
> Ilija

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  parent reply	other threads:[~2013-06-09 18:23 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-20 19:23 [Bug 1001539] New: " bugzilla-daemon
2012-03-20 19:24 ` [Bug 1001539] " bugzilla-daemon
2012-03-20 19:26 ` bugzilla-daemon
2012-03-20 19:39 ` bugzilla-daemon
2012-03-20 19:39 ` bugzilla-daemon
2012-03-20 19:40 ` bugzilla-daemon
2012-03-20 19:41 ` bugzilla-daemon
2012-03-20 19:43 ` bugzilla-daemon
2012-03-20 19:47 ` bugzilla-daemon
2012-03-21 13:44 ` bugzilla-daemon
2012-03-21 15:56 ` bugzilla-daemon
2012-03-21 18:36 ` bugzilla-daemon
2012-03-21 19:52 ` bugzilla-daemon
2012-03-22 10:24 ` bugzilla-daemon
2012-03-22 10:25 ` bugzilla-daemon
2012-03-22 10:26 ` bugzilla-daemon
2012-03-22 10:27 ` bugzilla-daemon
2012-03-22 10:28 ` bugzilla-daemon
2012-03-22 11:01 ` bugzilla-daemon
2012-03-22 13:42 ` bugzilla-daemon
2012-03-22 18:05 ` bugzilla-daemon
2012-03-22 23:53 ` bugzilla-daemon
2012-08-08 11:48 ` bugzilla-daemon
2013-05-15 20:00 ` bugzilla-daemon
2013-05-16  9:59 ` bugzilla-daemon
2013-06-07  9:17 ` bugzilla-daemon
2013-06-07 12:47 ` bugzilla-daemon
2013-06-07 20:20 ` bugzilla-daemon
2013-06-08 12:24 ` bugzilla-daemon
2013-06-08 15:37 ` bugzilla-daemon
2013-06-08 19:04 ` bugzilla-daemon
2013-06-08 19:08 ` bugzilla-daemon
2013-06-08 19:39 ` bugzilla-daemon
2013-06-09  9:39 ` bugzilla-daemon
2013-06-09  9:42 ` bugzilla-daemon
2013-06-09 18:23 ` bugzilla-daemon [this message]
2013-06-28 15:42 ` bugzilla-daemon
2013-06-28 15:44 ` bugzilla-daemon
2013-06-28 15:46 ` bugzilla-daemon
2013-06-28 15:51 ` bugzilla-daemon
2013-06-28 15:52 ` bugzilla-daemon
2013-06-28 15:53 ` bugzilla-daemon
2013-06-28 15:55 ` bugzilla-daemon
2013-06-28 15:56 ` bugzilla-daemon
2013-06-28 15:57 ` bugzilla-daemon
2013-06-28 15:58 ` bugzilla-daemon
2013-06-28 17:26 ` bugzilla-daemon
2013-08-09 15:44 ` bugzilla-daemon
2013-08-25 15:41 ` bugzilla-daemon
2013-09-24 18:08 ` bugzilla-daemon

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