1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/regions/issue-5243.rs b/src/test/ui/regions/issue-5243.rs
new file mode 100644
index 00000000000..c511d45f02d
--- /dev/null
+++ b/src/test/ui/regions/issue-5243.rs
@@ -0,0 +1,17 @@
+// run-pass
+#![allow(dead_code)]
+// Check that merely having lifetime parameters is not
+// enough for codegen to consider this as non-monomorphic,
+// which led to various assertions and failures in turn.
+
+// pretty-expanded FIXME #23616
+
+struct S<'a> {
+    v: &'a isize
+}
+
+fn f<'lt>(_s: &'lt S<'lt>) {}
+
+pub fn main() {
+    f(& S { v: &42 });
+}