1 files changed, 10 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-6557.rs b/src/test/ui/issues/issue-6557.rs
new file mode 100644
index 000000000..e066aa529
--- /dev/null
+++ b/src/test/ui/issues/issue-6557.rs
@@ -0,0 +1,10 @@
+// check-pass
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+#![feature(box_patterns)]
+#![feature(box_syntax)]
+
+fn foo(box (_x, _y): Box<(isize, isize)>) {}
+
+pub fn main() {}