https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124124
--- Comment #18 from Torbjorn SVENSSON <azoff at gcc dot gnu.org> ---
(In reply to Tomasz Kamiński from comment #16)
> For reference `check_v3_target_atomic_cmpxchg_word` check if atomic
> opeations works on pointer (which I assume are 32bit on the target), and
> `{dg-add-options libatomic}` should link libatomic if it is required for
> 64bit atomic support, which I think is not handled correctly in this case.
Pointers are 32bit for arm-none-eabi yes.
