1 files changed, 40 insertions, 0 deletions

diff --git a/tests/codegen-llvm/issues/issue-73258.rs b/tests/codegen-llvm/issues/issue-73258.rs
new file mode 100644
index 00000000000..936a7554496
--- /dev/null
+++ b/tests/codegen-llvm/issues/issue-73258.rs
@@ -0,0 +1,40 @@
+//@ compile-flags: -Copt-level=3
+
+#![crate_type = "lib"]
+
+// Adapted from <https://github.com/rust-lang/rust/issues/73258#issue-637346014>
+
+#[derive(Clone, Copy)]
+#[repr(u8)]
+pub enum Foo {
+    A,
+    B,
+    C,
+    D,
+}
+
+// CHECK-LABEL: @issue_73258(
+#[no_mangle]
+pub unsafe fn issue_73258(ptr: *const Foo) -> Foo {
+    // CHECK-NOT: icmp
+    // CHECK-NOT: call
+    // CHECK-NOT: br
+    // CHECK-NOT: select
+
+    // CHECK: %[[R:.+]] = load i8
+    // CHECK-SAME: !range !
+
+    // CHECK-NOT: icmp
+    // CHECK-NOT: call
+    // CHECK-NOT: br
+    // CHECK-NOT: select
+
+    // CHECK: ret i8 %[[R]]
+
+    // CHECK-NOT: icmp
+    // CHECK-NOT: call
+    // CHECK-NOT: br
+    // CHECK-NOT: select
+    let k: Option<Foo> = Some(ptr.read());
+    return k.unwrap();
+}