This is the mail archive of the
mailing list for the glibc project.
Re: RFC: remove the "tile" architecture from glibc
On Mon, 4 Dec 2017, John Paul Adrian Glaubitz wrote:
> > Note there is at least one open bug for m68k glibc
> > <https://sourceware.org/bugzilla/show_bug.cgi?id=13742> concerning use of
> > fsincos instructions that are documented as inaccurate for large inputs.
> > I would not be entirely confident that emulators accurately reflect the
> > levels of accuracy or inaccuracy of such instructions in hardware.
> I have real hardware running, so I can help with this issue. Thanks
> for pointing me at the issue.
If there is a real problem here then the simplest fix may simply be
avoiding m68k-specific implementations of these functions and using the
generic ones instead (as was done on x86 / x86_64 some years ago).
(libm-test-ulps for m68k hasn't been updated since 2015. You'd need to
update it before the libm testsuite can usefully identify other problems
that may be present.)
Joseph S. Myers