--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/coroutines/torture/alloc-04-overload-del-use-two-args.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,60 @@
+//  { dg-do run }
+
+/* check that we use the deallocation function with two args when both
+   are available.  */
+
+#define PROVIDE_NEW_SZT
+#define PROVIDE_DEL_VP
+#define PROVIDE_DEL_VP_SZT
+
+#include "../coro1-allocators.h"
+
+int used_ovl_new = 0;
+int used_ovl_del = 0;
+int used_ovl_del_2arg = 0;
+
+struct coro1
+f (int v) noexcept
+{
+  PRINT ("coro1: about to return");
+  co_return;
+}
+
+int main ()
+{
+  // Nest a scope so that we can inspect the flags after the DTORs run.
+  {
+  PRINT ("main: create coro1");
+  struct coro1 x = f (5);
+
+  if (used_ovl_new != 1)
+    {
+      PRINT ("main: apparently used the wrong op new...");
+      abort ();
+    }
+
+  PRINT ("main: got coro1 - resuming");
+  if (x.handle.done())
+    abort();
+  x.handle.resume();
+  PRINT ("main: after resume");
+  if (!x.handle.done())
+    {
+      PRINT ("main: apparently not done...");
+      abort ();
+    }
+  }
+  if (used_ovl_del != 0)
+    {
+      PRINT ("main: wrong call to overloaded operator delete 1 arg");
+      abort ();
+    }
+
+  if (used_ovl_del_2arg != 1)
+    {
+      PRINT ("main: failed to call overloaded operator delete 2 args");
+      abort ();
+    }
+  PRINT ("main: returning");
+  return 0;
+}