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CC: GLS at MIT-AI, (BUG LISPM) at MIT-AI

    RMS@MIT-AI 02/24/79 00:25:04
    The optimizer is called by some of the individual optimizers to avoid
    this problem.  If some neglect to do so, they can be fixed.
    It can't be done bottom-up without being a separate
    pass.  I don't think that's worth it.
Having all appropriate optimizers which test subforms first call
OPTIMIZE on those subforms should work fine.  That makes the
organization effectively bottom-up, though there may be some
redundant tests which determine that an already-optimized form
need not be optimized again.  I agree that a separate pass probably
is not worth it.