1 files changed, 13 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-43250.rs b/src/test/ui/issues/issue-43250.rs
new file mode 100644
index 000000000..24d70d296
--- /dev/null
+++ b/src/test/ui/issues/issue-43250.rs
@@ -0,0 +1,13 @@
+fn main() {
+    let mut y;
+    const C: u32 = 0;
+    macro_rules! m {
+        ($a:expr) => {
+            let $a = 0;
+        }
+    }
+    m!(y);
+    //~^ ERROR arbitrary expressions aren't allowed in patterns
+    m!(C);
+    //~^ ERROR arbitrary expressions aren't allowed in patterns
+}