--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp2a/paren-init23.C	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,19 @@
+// PR c++/93790 - wrong paren-init of aggregates interference.
+// { dg-do compile { target c++20 } }
+
+struct S {
+  int i;
+};
+const S& s(1);
+
+struct A {
+  int i;
+  A(int);
+};
+const A& a(1);
+
+struct B {
+  int i;
+  B(int) = delete;
+};
+const B& b(1); // { dg-error "use of deleted function" }