[PATCH] membar for sparc64

[Ulrich Drepper]

Jakub Jelinek <jakub@redhat.com> writes:

> stbar is deprecated and is doing something else (stbar is functionally
> equivalent to membar #StoreStore, ie. something like Alpha wmb).
> So, I've defined MEMORY_BARRIER to be something like Alpha mb and introduced
> READ_MEMORY_BARRIER which ensures Load->Load ordering.

Thanks, I've added the patch.

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