1 files changed, 35 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-41849-variance-req.rs b/src/test/ui/issues/issue-41849-variance-req.rs
new file mode 100644
index 000000000..af081083a
--- /dev/null
+++ b/src/test/ui/issues/issue-41849-variance-req.rs
@@ -0,0 +1,35 @@
+// run-pass
+#![allow(dead_code)]
+// Regression test for #41849.
+
+use std::ops::Mul;
+
+const C: usize = 1;
+const CAPACITY: usize = 1 * C;
+
+struct A<X> {
+    f: [X; CAPACITY],
+}
+
+struct B<T> {
+    f: T,
+}
+
+impl<T> Mul for B<T> {
+    type Output = Self;
+    fn mul(self, _rhs: B<T>) -> Self::Output {
+        self
+    }
+}
+
+impl<T> Mul<usize> for B<T> {
+    type Output = Self;
+    fn mul(self, _rhs: usize) -> Self::Output {
+        self
+    }
+}
+
+fn main() {
+    let a = A { f: [1] };
+    let _ = B { f: a };
+}