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[rust.git] / src / test / ui / consts / const_discriminant.rs

diff --git a/src/test/ui/consts/const_discriminant.rs b/src/test/ui/consts/const_discriminant.rs
index a47f6af02965b63c7eeaca87683439beeca17fb7..f623c5101f4cd7cf00dd048f37cb33fb5b07aaf8 100644 (file)
--- a/src/test/ui/consts/const_discriminant.rs
+++ b/src/test/ui/consts/const_discriminant.rs
@@ -25,6 +25,13 @@ enum SingleVariant {
 
 const TEST_V: Discriminant<SingleVariant> = discriminant(&SingleVariant::V);
 
+pub const TEST_VOID: () = {
+    // This is UB, but CTFE does not check validity so it does not detect this.
+    // This is a regression test for https://github.com/rust-lang/rust/issues/89765.
+    unsafe { std::mem::discriminant(&*(&() as *const () as *const Void)); };
+};
+
+
 fn main() {
     assert_eq!(TEST_A, TEST_A_OTHER);
     assert_eq!(TEST_A, discriminant(black_box(&Test::A(17))));