Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/ui/consts/validate_never_arrays.rs b/tests/ui/consts/validate_never_arrays.rs
new file mode 100644
index 000000000..f96ca6839
--- /dev/null
+++ b/tests/ui/consts/validate_never_arrays.rs
@@ -0,0 +1,12 @@
+// 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(never_type)]
+
+const _: &[!; 1] = unsafe { &*(1_usize as *const [!; 1]) }; //~ ERROR undefined behavior
+const _: &[!; 0] = unsafe { &*(1_usize as *const [!; 0]) }; // ok
+const _: &[!] = unsafe { &*(1_usize as *const [!; 0]) }; // ok
+const _: &[!] = unsafe { &*(1_usize as *const [!; 1]) }; //~ ERROR undefined behavior
+const _: &[!] = unsafe { &*(1_usize as *const [!; 42]) }; //~ ERROR undefined behavior
+
+fn main() {}