a5bd21d0fe
We must ensure that accesses occur, they do not have any other compiler-visible effects. Bruce found some situations where optimization could remove an access, and provided a patch to use volatile qualifier for the state variables. Since volatile behaviour there is the compiler-specific interpretation of the keyword, use relaxed atomics instead, which gives exactly the desired semantic. Noted by and discussed with: bde Sponsored by: The FreeBSD Foundation MFC after: 1 week |
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