--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgomp/testsuite/libgomp.c/thread-limit-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-set-target-env-var OMP_THREAD_LIMIT "6" } */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <omp.h>
+
+int
+main ()
+{
+  if (omp_get_thread_limit () != 6)
+    return 0;
+  omp_set_dynamic (0);
+  omp_set_nested (1);
+  #pragma omp parallel num_threads (3)
+  if (omp_get_num_threads () != 3)
+    abort ();
+  #pragma omp parallel num_threads (3)
+  if (omp_get_num_threads () != 3)
+    abort ();
+  #pragma omp parallel num_threads (8)
+  if (omp_get_num_threads () > 6)
+    abort ();
+  #pragma omp parallel num_threads (6)
+  if (omp_get_num_threads () != 6)
+    abort ();
+  int cnt = 0;
+  #pragma omp parallel num_threads (5)
+  #pragma omp parallel num_threads (5)
+  #pragma omp parallel num_threads (2)
+  {
+    int v;
+    #pragma omp atomic capture
+    v = ++cnt;
+    if (v > 6)
+      abort ();
+    usleep (10000);
+    #pragma omp atomic
+    --cnt;
+  }
+  return 0;
+}