Ellis Hoag a699b2f1c0 [InstrProf] Mark counters as used in debug correlation mode
In debug info correlation mode we do not emit the data globals so we
need to explicitly mark the counter globals as used so they don't get
stripped.

Reviewed By: kyulee

Differential Revision: https://reviews.llvm.org/D115981
2021-12-30 14:50:45 -08:00
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