1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/static/static-mut-requires-unsafe.rs b/tests/ui/static/static-mut-requires-unsafe.rs
new file mode 100644
index 00000000000..ea3ba095007
--- /dev/null
+++ b/tests/ui/static/static-mut-requires-unsafe.rs
@@ -0,0 +1,10 @@
+// revisions: mir thir
+// [thir]compile-flags: -Z thir-unsafeck
+
+static mut a: isize = 3;
+
+fn main() {
+    a += 3;         //~ ERROR: requires unsafe
+    a = 4;          //~ ERROR: requires unsafe
+    let _b = a;     //~ ERROR: requires unsafe
+}