[PATCH] D105445: [InstrProfiling] Use llvm.compiler.used if applicable for Mach-O

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
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Similar to D97585 <https://reviews.llvm.org/D97585>.

D25456 <https://reviews.llvm.org/D25456> used `S_ATTR_LIVE_SUPPORT` to ensure the data variable will be retained
or discarded as a unit with the counter variable, so llvm.compiler.used is
sufficient.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105445

Files:
  compiler-rt/test/profile/Darwin/coverage-linkage.cpp
  compiler-rt/test/profile/Darwin/lit.local.cfg.py
  llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
  llvm/test/Instrumentation/InstrProfiling/profiling.ll

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