[PATCH] Remove atomic_compare_and_exchange_bool_rel.

[Tulio Magno Quites Machado Filho]

Torvald Riegel <triegel@redhat.com> writes:

> Removing this operation and the matching (unused) catomic_ operation
> seemed to be easier than fixing powerpc's definition of it, only for it
> to be removed anyway in the future.  There were just three call sites of
> it.

OK, but why can't we remove __arch_compare_and_exchange_bool_*_rel from
powerpc[32|64] right now?
AFAICS, they're all unused.

For the record, microblaze seems to have a few unused lines as well.

-- 
Tulio Magno