--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp1y/constexpr-87481.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,16 @@
+// PR c++/87481
+// { dg-do compile { target c++14 } }
+// { dg-options "-fconstexpr-loop-limit=98304 -fconstexpr-ops-limit=131072" } */
+
+constexpr unsigned
+foo ()
+{
+  unsigned int r = 0;
+  for (int i = 0; i < 65536; i++)
+    for (int j = 0; j < 65536; j++)
+      for (int k = 0; k < 65536; k++)	// { dg-error "'constexpr' evaluation operation count exceeds limit of 131072" "" { target *-*-* } 0 }
+	r += (i + j + k);
+  return r;
+}
+
+constexpr auto x = foo ();		// { dg-message "in 'constexpr' expansion of" }