[Bug libgomp/79784] Synchronization overhead is thrashing on Aarch64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79784

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I should note I have seen some scalability issues with GOMP compared to LLVM's
openmp implementation on ThunderX 2 CN99xx (and on ThunderX 1 CN88xx).  I don't
know if this is related to this or not because I have not start to debugged
that yet.  Also this was reported to me by a few other folks too.