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

[Kuba Brecka via llvm-commits]

kubabrecka updated this revision to Diff 61908.
kubabrecka added a comment.

Updating patch using Dmitry’s suggestion for simplifying serial and concurrent sync objects.  I’m also simplifying some other stuff:  Removing `sync_object` and `object_to_release`, because they were only used for dispatch groups, but they can now use `is_barrier_block` instead.  Renaming `release_sync_object_in_callback` to `submitted_synchronously`.


http://reviews.llvm.org/D21604

Files:
  lib/tsan/rtl/tsan_libdispatch_mac.cc
  test/tsan/Darwin/gcd-barrier-race.mm
  test/tsan/Darwin/gcd-barrier.mm

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