1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/mir/alignment/misaligned_mut_borrow.rs b/tests/ui/mir/alignment/misaligned_mut_borrow.rs
new file mode 100644
index 00000000000..bba20edecfd
--- /dev/null
+++ b/tests/ui/mir/alignment/misaligned_mut_borrow.rs
@@ -0,0 +1,12 @@
+//@ run-fail
+//@ ignore-i686-pc-windows-msvc: #112480
+//@ compile-flags: -C debug-assertions
+//@ error-pattern: misaligned pointer dereference: address must be a multiple of 0x4 but is
+
+fn main() {
+    let mut x = [0u32; 2];
+    let ptr = x.as_mut_ptr();
+    unsafe {
+        let _ptr = &mut (*(ptr.byte_add(1)));
+    }
+}