--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/torture/pr90313.cc	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,33 @@
+// { dg-do run }
+
+#include <stddef.h>
+
+namespace std {
+  template<typename T, size_t N> struct array {
+    T elems[N];
+    const T &operator[](size_t i) const { return elems[i]; }
+  };
+}
+
+using Coordinates = std::array<double, 3>;
+
+Coordinates map(const Coordinates &c, size_t level)
+{
+  Coordinates result{ c[1], c[2], c[0] };
+
+  if (level != 0)
+    result = map (result, level - 1);
+
+  return result;
+}
+
+int main()
+{
+  Coordinates vecOfCoordinates = { 1.0, 2.0, 3.0 };
+
+  auto result = map(vecOfCoordinates, 1);
+  if (result[0] != 3 || result[1] != 1 || result[2] != 2)
+    __builtin_abort ();
+
+  return 0;
+}