1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/consts/const-eval/ub-uninhabit.rs b/tests/ui/consts/const-eval/ub-uninhabit.rs
index 10edae437..01600f545 100644
--- a/tests/ui/consts/const-eval/ub-uninhabit.rs
+++ b/tests/ui/consts/const-eval/ub-uninhabit.rs
@@ -1,7 +1,10 @@
 // Strip out raw byte dumps to make comparison platform-independent:
 // normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)"
 // normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*a(lloc)?[0-9]+(\+[a-z0-9]+)?─*╼ )+ *│.*" -> "HEX_DUMP"
+#![feature(core_intrinsics)]
+#![feature(never_type)]
 
+use std::intrinsics;
 use std::mem;
 
 #[derive(Copy, Clone)]
@@ -15,11 +18,24 @@ union MaybeUninit<T: Copy> {
 
 const BAD_BAD_BAD: Bar = unsafe { MaybeUninit { uninit: () }.init };
 //~^ ERROR evaluation of constant value failed
+//~| constructing invalid value
 
 const BAD_BAD_REF: &Bar = unsafe { mem::transmute(1usize) };
 //~^ ERROR it is undefined behavior to use this value
+//~| constructing invalid value
 
 const BAD_BAD_ARRAY: [Bar; 1] = unsafe { MaybeUninit { uninit: () }.init };
 //~^ ERROR evaluation of constant value failed
+//~| constructing invalid value
+
+
+const READ_NEVER: () = unsafe {
+    let mem = [0u32; 8];
+    let ptr = mem.as_ptr().cast::<!>();
+    let _val = intrinsics::read_via_copy(ptr);
+    //~^ ERROR evaluation of constant value failed
+    //~| constructing invalid value
+};
+
 
 fn main() {}