1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/layout/big-type-no-err.rs b/src/test/ui/layout/big-type-no-err.rs
new file mode 100644
index 000000000..af8191a9c
--- /dev/null
+++ b/src/test/ui/layout/big-type-no-err.rs
@@ -0,0 +1,13 @@
+// Enormous types are allowed if they are never actually instantiated.
+// run-pass
+trait Foo {
+    type Assoc;
+}
+
+impl Foo for [u16; usize::MAX] {
+    type Assoc = u32;
+}
+
+fn main() {
+    let _a: Option<<[u16; usize::MAX] as Foo>::Assoc> = None;
+}