Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/mir-opt/uninhabited_enum.rs b/tests/mir-opt/uninhabited_enum.rs
new file mode 100644
index 000000000..19db54815
--- /dev/null
+++ b/tests/mir-opt/uninhabited_enum.rs
@@ -0,0 +1,19 @@
+#![feature(never_type)]
+
+pub enum Void {}
+
+// EMIT_MIR uninhabited_enum.process_never.SimplifyLocals-final.after.mir
+#[no_mangle]
+pub fn process_never(input: *const !) {
+   let _input = unsafe { &*input };
+}
+
+// EMIT_MIR uninhabited_enum.process_void.SimplifyLocals-final.after.mir
+#[no_mangle]
+pub fn process_void(input: *const Void) {
+   let _input = unsafe { &*input };
+   // In the future, this should end with `unreachable`, but we currently only do
+   // unreachability analysis for `!`.
+}
+
+fn main() {}