diff --git a/library/core/src/ops/bit.rs b/library/core/src/ops/bit.rs
index 255f6cb7933..7c664226fc2 100644
--- a/library/core/src/ops/bit.rs
+++ b/library/core/src/ops/bit.rs
@@ -68,6 +68,17 @@ macro_rules! not_impl {
 
 not_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
 
+#[stable(feature = "not_never", since = "1.60.0")]
+#[rustc_const_unstable(feature = "const_ops", issue = "90080")]
+impl const Not for ! {
+    type Output = !;
+
+    #[inline]
+    fn not(self) -> ! {
+        match self {}
+    }
+}
+
 /// The bitwise AND operator `&`.
 ///
 /// Note that `Rhs` is `Self` by default, but this is not mandatory.
diff --git a/library/core/tests/ops.rs b/library/core/tests/ops.rs
index aa79dbac8f3..0c81cba35b3 100644
--- a/library/core/tests/ops.rs
+++ b/library/core/tests/ops.rs
@@ -232,3 +232,9 @@ fn deref_on_ref() {
     let y = deref(&mut x);
     assert_eq!(y, 4);
 }
+
+#[test]
+#[allow(unreachable_code)]
+fn test_not_never() {
+    if !return () {}
+}
diff --git a/src/test/ui/reachable/expr_unary.rs b/src/test/ui/reachable/expr_unary.rs
index e229d22ebc7..190c7447dcc 100644
--- a/src/test/ui/reachable/expr_unary.rs
+++ b/src/test/ui/reachable/expr_unary.rs
@@ -5,8 +5,8 @@
 #![deny(unreachable_code)]
 
 fn foo() {
-    let x: ! = ! { return; }; //~ ERROR unreachable
-    //~| ERROR cannot apply unary operator `!` to type `!`
+    let x: ! = * { return; }; //~ ERROR unreachable
+    //~| ERROR type `!` cannot be dereferenced
 }
 
 fn main() { }
diff --git a/src/test/ui/reachable/expr_unary.stderr b/src/test/ui/reachable/expr_unary.stderr
index 063d841c25e..0a763087c6f 100644
--- a/src/test/ui/reachable/expr_unary.stderr
+++ b/src/test/ui/reachable/expr_unary.stderr
@@ -1,13 +1,13 @@
-error[E0600]: cannot apply unary operator `!` to type `!`
+error[E0614]: type `!` cannot be dereferenced
   --> $DIR/expr_unary.rs:8:16
    |
-LL |     let x: ! = ! { return; };
-   |                ^^^^^^^^^^^^^ cannot apply unary operator `!`
+LL |     let x: ! = * { return; };
+   |                ^^^^^^^^^^^^^
 
 error: unreachable expression
   --> $DIR/expr_unary.rs:8:16
    |
-LL |     let x: ! = ! { return; };
+LL |     let x: ! = * { return; };
    |                ^^^^------^^^
    |                |   |
    |                |   any code following this expression is unreachable
@@ -21,4 +21,4 @@ LL | #![deny(unreachable_code)]
 
 error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0600`.
+For more information about this error, try `rustc --explain E0614`.