Ellis Hoag 9c35303981 [InstrProf][NFC] Fix warning by removing typecast
This fixes a warning about comparing mismatched types. Since `mmap()` already returns a `void *` use that as the pointer type for comparison.

Reviewed By: kyulee, zequanwu

Differential Revision: https://reviews.llvm.org/D120945
2022-03-04 10:48:25 -08:00
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