Johannes Doerfert 994bb6eb7d [OpenMP][NFC] Provide a new remark and documentation ...

If a GPU function is externally reachable we give up trying to find the
(unique) kernel it is called from. This can hinder optimizations. Emit a
remark and explain mitigation strategies.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D93439

2020-12-17 14:38:26 -06:00

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