--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgomp/testsuite/libgomp.c/pr80809-3.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+/* PR middle-end/80809 */
+/* { dg-do run } */
+
+__attribute__((noinline, noclone)) void
+foo (int x)
+{
+  int i, v[x], w[16];
+  for (i = 0; i < x; i++)
+    v[i] = i;
+  for (i = 0; i < 16; i++)
+    w[i] = 0;
+#pragma omp parallel
+#pragma omp single
+  {
+    int z[x];
+    for (i = 0; i < x; i++)
+      z[0] = 0;
+    for (i = 0; i < 16; i++)
+#pragma omp task firstprivate (z) firstprivate (v)
+      {
+	int j;
+	for (j = 0; j < x; j++)
+	  z[j] = i;
+	for (j = 0; j < x; j++)
+	  v[j] += z[j];
+	for (j = 0; j < x; j++)
+	  w[i] += v[j];
+      }
+  }
+  for (i = 0; i < 16; i++)
+    if (w[i] != (x - 1) * x / 2 + x * i)
+      __builtin_abort ();
+}
+
+int
+main ()
+{
+  foo (4);
+  foo (27);
+  foo (196);
+  return 0;
+}