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      1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
      2 #include <pthread.h>
      3 #include <stdlib.h>
      4 #include <stdio.h>
      5 #include <unistd.h>
      6 #include <errno.h>
      7 
      8 pthread_mutex_t m;
      9 
     10 void *thr(void *p) {
     11   pthread_mutex_lock(&m);
     12   return 0;
     13 }
     14 
     15 int main() {
     16   pthread_mutexattr_t a;
     17   pthread_mutexattr_init(&a);
     18   pthread_mutexattr_setrobust(&a, PTHREAD_MUTEX_ROBUST);
     19   pthread_mutex_init(&m, &a);
     20   pthread_t th;
     21   pthread_create(&th, 0, thr, 0);
     22   sleep(1);
     23   if (pthread_mutex_lock(&m) != EOWNERDEAD) {
     24     fprintf(stderr, "not EOWNERDEAD\n");
     25     exit(1);
     26   }
     27   pthread_join(th, 0);
     28   fprintf(stderr, "DONE\n");
     29 }
     30 
     31 // This is a correct code, and tsan must not bark.
     32 // CHECK-NOT: WARNING: ThreadSanitizer
     33 // CHECK-NOT: EOWNERDEAD
     34 // CHECK: DONE
     35 // CHECK-NOT: WARNING: ThreadSanitizer
     36 
     37