--- /dev/null
+extern "C" void abort ();
+
+int check;
+int f1() { check |= 1; return 1; }
+int f2() { check |= 2; return 11; }
+int f3() { check |= 4; return 2; }
+
+int a[12];
+
+int main()
+{
+ #pragma omp for
+ for (int i = f1(); i <= f2(); i += f3())
+ a[i] = 1;
+
+ for (int i = 0; i < 12; ++i)
+ if (a[i] != (i & 1))
+ abort ();
+}