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[Bug math/14412] Removal of sysdeps/x86_64/fpu/s_sincos.S causes regressions
- From: "neleai at seznam dot cz" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Mon, 29 Apr 2013 16:29:40 +0000
- Subject: [Bug math/14412] Removal of sysdeps/x86_64/fpu/s_sincos.S causes regressions
- Auto-submitted: auto-generated
- References: <bug-14412-131 at http dot sourceware dot org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14412
--- Comment #42 from Ondrej Bilka <neleai at seznam dot cz> 2013-04-29 16:29:40 UTC ---
On Mon, Apr 29, 2013 at 02:48:43PM +0000, bugdal at aerifal dot cx wrote:
> http://sourceware.org/bugzilla/show_bug.cgi?id=14412
>
> --- Comment #41 from Rich Felker <bugdal at aerifal dot cx> 2013-04-29 14:48:43 UTC ---
> Ondrej, the input always has 52 significant bits unless it's denormal. If, due
> to the way you computed the input value, none of them are significant to you,
> then that's your problem.
> sin() and cos() are still required to return the
> correct result assuming all bits of input are significant.
>
Citation needed.
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