1  /* { dg-shouldfail "tsan" } */
       2  /* { dg-additional-options "-ldl" } */
       3  
       4  #include <pthread.h>
       5  #include "tsan_barrier.h"
       6  
       7  static pthread_barrier_t barrier;
       8  struct bitfield
       9  {
      10    int a:10;
      11    int b:10;
      12  } Global;
      13  
      14  void *Thread1(void *x) {
      15    barrier_wait(&barrier);
      16    Global.a = 42;
      17    return x;
      18  }
      19  
      20  int main() {
      21    barrier_init(&barrier, 2);
      22    pthread_t t;
      23    pthread_create(&t, 0, Thread1, 0);
      24    Global.b = 43;
      25    barrier_wait(&barrier);
      26    pthread_join(t, 0);
      27    return Global.a;
      28  }
      29  
      30  /* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */