--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgomp/testsuite/libgomp.c/lock-3.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,60 @@
+/* { dg-do run { target *-*-linux* } } */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+#include <pthread.h>
+#include <omp.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+pthread_barrier_t bar;
+omp_nest_lock_t lock;
+
+void *tf (void *p)
+{
+  int l;
+  if (p)
+    {
+      if (omp_test_nest_lock (&lock) != 1)
+	abort ();
+      if (omp_test_nest_lock (&lock) != 2)
+	abort ();
+    }
+  pthread_barrier_wait (&bar);
+  if (!p && omp_test_nest_lock (&lock) != 0)
+    abort ();
+  pthread_barrier_wait (&bar);
+  if (p)
+    {
+      if (omp_test_nest_lock (&lock) != 3)
+	abort ();
+      omp_unset_nest_lock (&lock);
+      omp_unset_nest_lock (&lock);
+      omp_unset_nest_lock (&lock);
+    }
+  pthread_barrier_wait (&bar);
+  if (!p)
+    {
+      if (omp_test_nest_lock (&lock) != 1)
+	abort ();
+      if (omp_test_nest_lock (&lock) != 2)
+	abort ();
+      omp_unset_nest_lock (&lock);
+      omp_unset_nest_lock (&lock);
+    }
+  return NULL;
+}
+
+int
+main (void)
+{
+  pthread_t th;
+  omp_init_nest_lock (&lock);
+  pthread_barrier_init (&bar, NULL, 2);
+  pthread_create (&th, NULL, tf, NULL);
+  tf ("");
+  pthread_join (th, NULL);
+  omp_destroy_nest_lock (&lock);
+  return 0;
+}