[PATCH 00/23] Add remaining CORE-MATH binary32 implementations to libm

[Paul Zimmermann]

> > I'm currently[*] seeing ULP failures for atan, atan2, asin, and acos
> > when passed PI-related constants, for example:
> >
> > FAIL: math/test-double-acospi
> > FAIL: math/test-double-asinpi
> > FAIL: math/test-double-atan2pi
> > FAIL: math/test-double-atanpi
> > FAIL: math/test-float-acospi
> > FAIL: math/test-float-asinpi
> > FAIL: math/test-float-atan2pi
> > FAIL: math/test-float-atanpi
> > . . .
> >
> > ... on s390, ppc64le, and i686.
> >
> > The results are all "saw 1 expected 0 ULPs".
> >
> > Could these be related to this patch set?
> >
> > [*] while syncing glibc to Fedora Rawhide, at least.  The i686 ci/cd
> > trybot is not seeing ULP problems.
> 
> Yes, these functions are not expected to be correctly rounded, and as
> they are newly added, many architectures do not have ulps bounds for
> them yet.

however, this is unrelated to the "Add remaining CORE-MATH binary32 implementations"
patchset, since these functions do not yet use the CORE-MATH implementations.
This will have to wait after the 2.41 release.

Paul