[PATCH] D70330: [profile] Fix file contention causing dropped counts on Windows under -fprofile-generate

[Hans Wennborg via Phabricator via llvm-commits]

hans added a comment.

Hmm, the test looks more like a unit test for lprofOpenFileEx() rather than something that tests profile merging.

The other tests in profile/ are more like integration tests. Would it be possible to write one for this case also? For example, could we have a test program that spawns N subprocesses, which each call some function, and then we check that the profile data reflects that the function's entry count is N?


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  https://reviews.llvm.org/D70330/new/

https://reviews.llvm.org/D70330