Comment by tialaramex

My favourite weird ABI choice is: Who does what for a barrier? The barrier needs one party to do work for a full fence, but which party that should be doesn't matter... There can be an x86 FENCE over on the store side, or we can put the x86 FENCE on the load. We could do both but that's pointless, so don't do that. However if we do neither we haven't built a barrier and now there's probably a horrible bug.