Mircea Trofin a32c2c3808 [NFC] Use Optional<ProfileCount> to model invalid counts ...

ProfileCount could model invalid values, but a user had no indication
that the getCount method could return bogus data. Optional<ProfileCount>
addresses that, because the user must dereference the optional. In
addition, the patch removes concept duplication.

Differential Revision: https://reviews.llvm.org/D113839

2021-11-14 19:03:30 -08:00

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