[llvm] [Coverage] Fix atomic mode for certain types of coverage counter updates (PR #204597)

[Roman Beliaev via llvm-commits]

belyaevrd wrote:

> That said, I have no idea we should mark ops as "atomic monotonic" unconditionally.

We only mark opts as atomic when the corresponding Options are used. Are there any other suitable atomic orderings that we should consider?

https://github.com/llvm/llvm-project/pull/204597