1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs
new file mode 100644
index 000000000..191caa78f
--- /dev/null
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs
@@ -0,0 +1,15 @@
+// run-pass
+
+use std::fmt;
+
+struct Array<T>(T);
+
+impl<T: fmt::Debug, const N: usize> fmt::Debug for Array<[T; N]> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_list().entries((&self.0 as &[T]).iter()).finish()
+    }
+}
+
+fn main() {
+    assert_eq!(format!("{:?}", Array([1, 2, 3])), "[1, 2, 3]");
+}