1 files changed, 11 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-81918.rs b/tests/ui/issues/issue-81918.rs
new file mode 100644
index 000000000..8938b8a6f
--- /dev/null
+++ b/tests/ui/issues/issue-81918.rs
@@ -0,0 +1,11 @@
+// check-pass
+// dont-check-compiler-stdout
+// compile-flags: -Z unpretty=mir-cfg
+
+// This checks that unpretty=mir-cfg does not panic. See #81918.
+
+const TAG: &'static str = "ABCD";
+
+fn main() {
+    if TAG == "" {}
+}