[all-commits] [llvm/llvm-project] 1a5bc7: Fix flaky test: signal_in_mutex_lock.cpp (#92587)

[Julian Lettner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1a5bc7c895ddeafa0e1d269da67bbeafcd8bc1a4
      https://github.com/llvm/llvm-project/commit/1a5bc7c895ddeafa0e1d269da67bbeafcd8bc1a4
  Author: Julian Lettner <yln at users.noreply.github.com>
  Date:   2024-05-17 (Fri, 17 May 2024)

  Changed paths:
    M compiler-rt/test/tsan/signal_in_mutex_lock.cpp

  Log Message:
  -----------
  Fix flaky test: signal_in_mutex_lock.cpp (#92587)

Fix flaky test: the spawned thread keeps spinning
on `sampler_mutex` which may be released before
the thread is terminated based on termination
ordering.

My understanding of C++ semantics are that the
program here is invalid: the destructors of global
variables are invoked at the time of program
termination, and it is the responsibility of the
program to ensure that invoking those destructors
is safe.

rdar://126768628



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