[PATCH] Recent libm additions

Dima Pasechnik dimpase+freebsd at gmail.com
Mon Jul 16 12:18:00 UTC 2018

Julia's libm is https://github.com/JuliaMath/openlibm (or http://openlibm.org/)

The do try merging latest from freebsd (msun), although it seems not
the very latest.
(see e.g. https://github.com/JuliaMath/openlibm/pull/118)

I did try installing the master git branch of openlibm on FreeBSD 11.1
with clang,
it builds and passes all tests they have.

Does it make sense to contribute there more tests (if any --- they seem to have
quite a list), to clear
suspicions about precision?

On Sun, Jul 15, 2018 at 10:03 PM Matthew Macy <mat.macy at gmail.com> wrote:
> On Sun, Jul 15, 2018 at 12:43 PM, Montgomery-Smith, Stephen
> <stephen at missouri.edu> wrote:
> > On 07/15/2018 02:09 PM, Warner Losh wrote:
> >> I'm not saying that he has a lock. I'm saying he's are domain expert and
> >> many mistakes can be avoided by talking to him.
> >>
> >> I'm saying we have history here, and that history, while poorly documented,
> >> wasn't followed. To the extent it is poorly documented, we should fix that.
> >>
> >> Warner
> >>
> > I agree that we should document the process.  Maybe also include
> > freebsd-numerics@ on these discussions, as that is why it was created.
> >
> > But I'm really glad these changes were committed.  I have found the
> > people tend to drag their feet a lot on numerics issues.
> >
> > Has anyone done an analysis of the OpenBSD powl functions from an
> > accuracy point of view?  That is, to test how many ULP of error these
> > functions have?  If not, I could give it a go, although not for several
> > months because life is very busy.
> They're also used by Julia. You might ask there first.
> -M
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