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Re: Subject: single-precision "expf" super slow on x86-64??
- From: "Carlos O'Donell" <carlos at systemhalted dot org>
- To: Miles Bader <miles at gnu dot org>
- Cc: Paul Pluzhnikov <ppluzhnikov at google dot com>, libc-help at sourceware dot org
- Date: Wed, 2 May 2012 15:39:09 -0400
- Subject: Re: Subject: single-precision "expf" super slow on x86-64??
- References: <87aa1vjfol.fsf@catnip.gol.com><CALoOobNgpMvgHR6-5Gwa48L7wRsjZ_eTD6w1C75yEAAqfyw8gA@mail.gmail.com><CADCnXoadj1h2EG46DxX7kdoVYpLZ5DmBW9+Qp=a94Zg9E4uwng@mail.gmail.com><CALoOobO=sNHzEM1NgerMGrWmEb3g-rD4jFN3CATwa00vE=TVJA@mail.gmail.com><CADCnXoZ=Ovp-rxSBu5PxeUuZmS0uYdcbaE6TuujaEEa7pHco3g@mail.gmail.com>
On Sun, Apr 29, 2012 at 10:22 PM, Miles Bader <miles@gnu.org> wrote:
> That's the 2.13 code; the current master has replaced the above FPU
> fiddling with some sort of macro... and now the _double_ version of
> the C code does some FPU fiddling too...
>
> Is there a better mailing list to post to? ?I'd be interested some
> maintainer's viewpoint on this stuff...
Miles,
Paul is a maintainer, and so am I :-)
Could you to try again against glibc trunk and see if the issue is
still present?
The community has done a lot of work to fix up libm after the 2.15 release.
If you don't have time to test against glibc trunk please file a bug
in bugzilla and ensure that you mark it with component=math.
Cheers,
Carlos.