--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/ext/constexpr-attr-cleanup1.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,30 @@
+// { dg-do compile { target c++2a } }
+
+constexpr void
+cleanup (int *x)
+{
+  if (x)
+    asm ("");		// { dg-error "inline assembly is not a constant expression" }
+}			// { dg-message "only unevaluated inline assembly is allowed in a 'constexpr' function" "" { target *-*-* } .-1 }
+
+constexpr void
+cleanup2 (int *x)
+{
+}
+
+constexpr bool
+foo ()
+{
+  int a __attribute__((cleanup (cleanup))) = 1;	// { dg-message "in 'constexpr' expansion of" }
+  return true;
+}
+
+constexpr bool
+bar ()
+{
+  int a __attribute__((cleanup (cleanup2))) = 1;
+  return true;
+}
+
+constexpr auto x = foo ();	// { dg-message "in 'constexpr' expansion of" }
+constexpr auto y = bar ();