================

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ccotter wrote:

I've updated the annotations to note simulation is not (currently) supported. 
Locking a pthread mutex in simulation mode needs direct access to the mutex to 
detect when the mutex is already held by someone else, and putting that thread 
to sleep in the SimScheduler, instead of blocking on the mutex (and thus 
deadlocking, since no other thread would be given a chance to run). 

https://github.com/llvm/llvm-project/pull/183200
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