From b29d7166f2dd2e975e5d2eff5674b7bd10bac5c3 Mon Sep 17 00:00:00 2001
From: Bram van den Heuvel <bram@vandenheuvel.online>
Date: Tue, 9 Feb 2021 14:42:04 +0100
Subject: [PATCH] Add a regression test for #32498

---
 src/test/ui/generics/issue-32498.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/test/ui/generics/issue-32498.rs

diff --git a/src/test/ui/generics/issue-32498.rs b/src/test/ui/generics/issue-32498.rs
new file mode 100644
index 0000000000000..1b54401097ea9
--- /dev/null
+++ b/src/test/ui/generics/issue-32498.rs
@@ -0,0 +1,16 @@
+// run-pass
+#![allow(dead_code)]
+
+// Making sure that no overflow occurs.
+
+struct L<T> {
+    n: Option<T>,
+}
+type L8<T> = L<L<L<L<L<L<L<L<T>>>>>>>>;
+type L64<T> = L8<L8<L8<L8<T>>>>;
+
+fn main() {
+    use std::mem::size_of;
+    assert_eq!(size_of::<L64<L64<()>>>(), 1);
+    assert_eq!(size_of::<L<L64<L64<()>>>>(), 1);
+}