1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/unsafe/ranged_ints3_match.rs b/src/test/ui/unsafe/ranged_ints3_match.rs
new file mode 100644
index 000000000..d9fcf0bd6
--- /dev/null
+++ b/src/test/ui/unsafe/ranged_ints3_match.rs
@@ -0,0 +1,22 @@
+// revisions: mirunsafeck thirunsafeck
+// [thirunsafeck]compile-flags: -Z thir-unsafeck
+
+#![feature(rustc_attrs)]
+
+use std::cell::Cell;
+
+#[rustc_layout_scalar_valid_range_start(1)]
+#[repr(transparent)]
+pub(crate) struct NonZero<T>(pub(crate) T);
+fn main() {
+    let mut x = unsafe { NonZero(Cell::new(1)) };
+    match x {
+        NonZero(ref x) => { x }
+        //~^ ERROR borrow of layout constrained field with interior mutability
+    };
+
+    let mut y = unsafe { NonZero(42) };
+    match y { NonZero(ref y) => { y } }; // OK, type of `y` is freeze
+    match y { NonZero(ref mut y) => { y } };
+    //~^ ERROR mutation of layout constrained field
+}