1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/testsuite/rust/compile/macro52.rs b/gcc/testsuite/rust/compile/macro52.rs
new file mode 100644
index 0000000..31002eb
--- /dev/null
+++ b/gcc/testsuite/rust/compile/macro52.rs
@@ -0,0 +1,11 @@
+macro_rules! multi {
+    ($( $a:ident )? $( + $b:ident )?) => {
+        {
+            $( let $a: u32 )?;
+        }
+    }
+}
+
+pub fn foo() {
+    multi!(_a);
+}