[PATCH] D21927: [tsan] Synchronize leaving a GCD group with notifications

Kuba Brecka via llvm-commits llvm-commits at lists.llvm.org
Fri Jul 1 07:09:21 PDT 2016

kubabrecka created this revision.
kubabrecka added reviewers: dvyukov, kcc, glider.
kubabrecka added subscribers: llvm-commits, zaks.anna, dcoughlin.
kubabrecka added a project: Sanitizers.
Herald added a subscriber: kubabrecka.

In the patch that introduced support for GCD barrier blocks, I removed releasing a group when leaving it (in dispatch_group_leave).  However, this is necessary to synchronize leaving a group and a notification callback (dispatch_group_notify).  Adding this back, simplifying dispatch_group_notify_f and adding a test case.



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