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  int Global;
       9  pthread_mutex_t mtx;
      10  
      11  void *Thread1(void *x) {
      12    barrier_wait(&barrier);
      13    pthread_mutex_lock(&mtx);
      14    Global++;
      15    pthread_mutex_unlock(&mtx);
      16    return NULL;
      17  }
      18  
      19  void *Thread2(void *x) {
      20    Global--;
      21    barrier_wait(&barrier);
      22    return NULL;/* { dg-output ".*" } */
      23  
      24  }
      25  
      26  int main() {
      27    barrier_init(&barrier, 2);
      28    pthread_mutex_init(&mtx, 0);
      29    pthread_t t[2];
      30    pthread_create(&t[0], NULL, Thread1, NULL);
      31    pthread_create(&t[1], NULL, Thread2, NULL);
      32    pthread_join(t[0], NULL);
      33    pthread_join(t[1], NULL);
      34    pthread_mutex_destroy(&mtx);
      35    return 0;
      36  }
      37  
      38  /* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
      39  /* { dg-output "  Read of size 4 at 0x\[0-9a-f\]+ by thread T1 \\(mutexes: write M\[0-9\]\\):.*" } */
      40  /* { dg-output "  Previous write of size 4 at 0x\[0-9a-f\]+ by thread T2:.*" } */
      41  /* { dg-output "  Mutex M\[0-9\] \\(0x.*\\) created at:.*" } */
      42  /* { dg-output "    #0 pthread_mutex_init.*" } */
      43  /* { dg-output "    #1 main (.*mutexset1.c|\\?{2}):\[0-9]+.*" } */