--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp2a/range-for4.C	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,27 @@
+// P0614R1
+// { dg-do run }
+// { dg-options "-std=c++2a" }
+
+int
+main ()
+{
+  int a[] = { 1, 2, 3, 4, 5 };
+
+  for (int i = 1; auto x : a)
+    if (i++ != x)
+      __builtin_abort ();
+
+  int i;
+  for (i = 1; auto x : a)
+    if (i++ != x)
+      __builtin_abort ();
+
+  i = 0;
+  for (i++; auto x : a)
+    if (i != 1)
+      __builtin_abort ();
+
+  for (int s[] = { 1, 1, 1 }; auto x : s)
+    if (x != 1)
+      __builtin_abort ();
+}