[PATCH] D14745: [tsan] Implement basic GCD interceptors for OS X

[Kuba Brecka via llvm-commits]

kubabrecka updated this revision to Diff 40879.
kubabrecka added a comment.

Simplifying this patch to only add interceptors for dispatch_sync and dispatch_async (and their _f and _barrier variants).  Added more tests to show usage of dispatch_sync and dispatch_async, for cases where we expect no warnings and for cases where TSan finds races.

This patch doesn't need any suppressions (which was a bad idea and didn't work, you were right).  The synchronization is now done on malloc'd contexts (separate for each submitted block/callback).


http://reviews.llvm.org/D14745

Files:
  lib/tsan/rtl/tsan_libdispatch_mac.cc
  test/tsan/Darwin/gcd-async-norace.mm
  test/tsan/Darwin/gcd-async-race.mm
  test/tsan/Darwin/gcd-sync-norace.mm
  test/tsan/Darwin/gcd-sync-race.mm

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