On Jun 6, 2008, at 5:36 PM, Quincey Morris wrote:
A little inner voice insists on asking, though, how we know some future version of the compiler might not optimize '[data self]' upwards before the loop, if it decides that nothing inside the loop references anything non-local:
This won't happen because each message expression -- just as with function-call expressions -- is a sequence point. The compiler can't know what side-effects [data self] might have, so it can't re-order the invocation to elsewhere.
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