[PATCH] D21604: [tsan] Add HB edges for GCD barrier blocks

[Dmitry Vyukov via llvm-commits]

dvyukov added a comment.

I've submitted:
http://llvm.org/viewvc/llvm-project?view=revision&revision=273862
It should make these annotations more efficient for some cases (serial queues and concurrent queues with only concurrent tasks).


http://reviews.llvm.org/D21604