--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp1z/decomp52.C	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,14 @@
+// DR 2289
+// PR c++/94553
+// { dg-do compile { target c++17 } }
+// A structured binding must be unique in its declarative region.
+
+void
+f ()
+{
+  int arr[1] = { 1 };
+  struct A { };
+  auto [A] = arr; // { dg-error "redeclared as different kind of entity" }
+  auto [B] = arr;
+  struct B { }; // { dg-error "redeclared as different kind of entity" }
+}