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-rw-r--r--tests/ui/binding/match-join.rs20
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/binding/match-join.rs b/tests/ui/binding/match-join.rs
new file mode 100644
index 00000000000..60f2a458489
--- /dev/null
+++ b/tests/ui/binding/match-join.rs
@@ -0,0 +1,20 @@
+// run-pass
+#![allow(unused_mut)]
+fn foo<T>(y: Option<T>) {
+    let mut x: isize;
+    let mut rs: Vec<isize> = Vec::new();
+    /* tests that x doesn't get put in the precondition for the
+       entire if expression */
+
+    if true {
+    } else {
+        match y {
+          None::<T> => x = 17,
+          _ => x = 42
+        }
+        rs.push(x);
+    }
+    return;
+}
+
+pub fn main() { println!("hello"); foo::<isize>(Some::<isize>(5)); }