1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/mir/enum/with_niche_int_ok.rs b/tests/ui/mir/enum/with_niche_int_ok.rs
new file mode 100644
index 00000000000..9a3ff3a73be
--- /dev/null
+++ b/tests/ui/mir/enum/with_niche_int_ok.rs
@@ -0,0 +1,23 @@
+//@ run-pass
+//@ compile-flags: -C debug-assertions
+
+#[allow(dead_code)]
+#[repr(u16)]
+enum Mix {
+    A,
+    B(u16),
+}
+
+#[allow(dead_code)]
+enum Nested {
+    C(Mix),
+    D,
+    E,
+}
+
+fn main() {
+    let _val: Nested = unsafe { std::mem::transmute::<u32, Nested>(0) };
+    let _val: Nested = unsafe { std::mem::transmute::<u32, Nested>(1) };
+    let _val: Nested = unsafe { std::mem::transmute::<u32, Nested>(2) };
+    let _val: Nested = unsafe { std::mem::transmute::<u32, Nested>(3) };
+}