llvm-project

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// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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#include "test.h"
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void *Thread(void *x) {
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  pthread_mutex_lock((pthread_mutex_t*)x);
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  pthread_mutex_unlock((pthread_mutex_t*)x);
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  barrier_wait(&barrier);
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  return 0;
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}
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int main() {
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  barrier_init(&barrier, 2);
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  pthread_mutex_t Mtx;
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  pthread_mutex_init(&Mtx, 0);
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  pthread_t t;
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  pthread_create(&t, 0, Thread, &Mtx);
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  barrier_wait(&barrier);
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  pthread_mutex_destroy(&Mtx);
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  pthread_join(t, 0);
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  return 0;
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}
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// CHECK:      WARNING: ThreadSanitizer: data race
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