1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-27401-dropflag-reinit.rs b/src/test/ui/issues/issue-27401-dropflag-reinit.rs
new file mode 100644
index 000000000..ab54af29b
--- /dev/null
+++ b/src/test/ui/issues/issue-27401-dropflag-reinit.rs
@@ -0,0 +1,26 @@
+// run-pass
+
+// Check that when a `let`-binding occurs in a loop, its associated
+// drop-flag is reinitialized (to indicate "needs-drop" at the end of
+// the owning variable's scope).
+
+struct A<'a>(&'a mut i32);
+
+impl<'a> Drop for A<'a> {
+    fn drop(&mut self) {
+        *self.0 += 1;
+    }
+}
+
+fn main() {
+    let mut cnt = 0;
+    for i in 0..2 {
+        let a = A(&mut cnt);
+        if i == 1 { // Note that
+            break;  //  both this break
+        }           //   and also
+        drop(a);    //    this move of `a`
+        // are necessary to expose the bug
+    }
+    assert_eq!(cnt, 2);
+}