[PATCH] D70910: [compiler-rt] Add a critical section when flushing gcov counters

[JF Bastien via Phabricator via llvm-commits]

jfb added a comment.

> OK that helps a bit. I still don't understand though: why do you only need to protect flush and nothing else? You're protecting specific variables from being accesses concurrently only though flush, and not through the other paths that access those variables. Are these variables never accessed concurrently from these other functions?

Following up, I'd like to understand this.


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https://reviews.llvm.org/D70910