compiler-rt/test/tsan/race_on_mutex2.c

   1 // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 void *Thread(void *x) {
   5   pthread_mutex_lock((pthread_mutex_t*)x);
   6   pthread_mutex_unlock((pthread_mutex_t*)x);
   7   barrier_wait(&barrier);
   8   return 0;
   9 }
  10
  11 int main() {
  12   barrier_init(&barrier, 2);
  13   pthread_mutex_t Mtx;
  14   pthread_mutex_init(&Mtx, 0);
  15   pthread_t t;
  16   pthread_create(&t, 0, Thread, &Mtx);
  17   barrier_wait(&barrier);
  18   pthread_mutex_destroy(&Mtx);
  19   pthread_join(t, 0);
  20   return 0;
  21 }
  22
  23 // CHECK:      WARNING: ThreadSanitizer: data race