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[Attributor] Recompute dependences once a fixpoint is reached
Needs ReviewPublic

Authored by jdoerfert on Jun 13 2019, 10:54 PM.



We use dependences to determine what attributes can be manifested and if
(deep) wrappers are needed. To improve these decisions we allow to
eliminate spurious dependences at the end by running a final iteration
of updates after a fixpoint was reached.