tree 5fd2640cad5384e3e4314a4cb7ac02143319b501
parent d88fb5996ef11ba9e153c805533eb4c8f0ee10ec
author Kuba Mracek <mracek@apple.com> 1480022694 +0000
committer Kuba Brecka <jbrecka@apple.com> 1480100034 -0800

[tsan] Add support for GCD dispatch_suspend and dispatch_resume

GCD queues can be suspended and resumed with dispatch_suspend and dispatch_resume. We need to add synchronization between the call to dispatch_resume and any subsequent executions of blocks in the queue that was resumed. We already have an Acquire(q) before the block executes, so this patch just adds the Release(q) in an interceptor of dispatch_resume.

Differential Revision: https://reviews.llvm.org/D27112


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@287902 91177308-0d34-0410-b5e6-96231b3b80d8