--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp2a/range-for17.C	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,30 @@
+// PR c++/87152
+// { dg-do run }
+// { dg-options "-std=c++2a" }
+
+struct A { int i; long long j; } a[64];
+
+template<typename>
+void foo ()
+{
+  A b = { 1, 2 };
+  for (auto & [ u, v ] : a)
+    {
+      u = 2;
+      v = 3;
+    }
+
+  for (auto [x, y] = b; auto [ u, v ] : a)
+    if (y + u != x + v)
+      __builtin_abort ();
+
+  for (auto [x, y] = b; auto & [ u, v ] : a)
+    if (y + u != x + v)
+      __builtin_abort ();
+}
+
+int
+main ()
+{
+  foo<int>();
+}