Johannes Doerfert 26d02b0f28 [Attributor] AANoRecurse check all call sites for norecurse ...

If all call sites are in `norecurse` functions we can derive `norecurse`
as the ReversePostOrderFunctionAttrsPass does. This should make
ReversePostOrderFunctionAttrsLegacyPass obsolete once the Attributor is
enabled.

Reviewed By: uenoku

Differential Revision: https://reviews.llvm.org/D72017

2020-02-02 23:57:17 -06:00

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