labath added a reviewer: jasonmolenda. labath added a comment. Presumably, this should change how unwind plans are computed. The unwind machinery will treat a `mov %sp, %fp`(whatever is the arm equivalent) as a signal that it should switch to an frame-pointer based unwind. This logic should not kick in if lldb does not think this register is the frame pointer register. You should be able to check this via `image show-unwind`. If that shows some difference then it should be possible to concoct a function where the unwind goes wrong because of this, but that's not necessary -- it should be enough to just check that a reasonable unwind plan is generated.
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