1 files changed, 28 insertions, 0 deletions
diff --git a/tests/codegen/option-as-slice.rs b/tests/codegen/option-as-slice.rs
new file mode 100644
index 000000000..d5077dbf6
--- /dev/null
+++ b/tests/codegen/option-as-slice.rs
@@ -0,0 +1,28 @@
+// compile-flags: -O
+// only-x86_64
+
+#![crate_type = "lib"]
+#![feature(option_as_slice)]
+
+extern crate core;
+
+use core::num::NonZeroU64;
+use core::option::Option;
+
+// CHECK-LABEL: @u64_opt_as_slice
+#[no_mangle]
+pub fn u64_opt_as_slice(o: &Option<u64>) -> &[u64] {
+    // CHECK: start:
+    // CHECK-NOT: select
+    // CHECK: ret
+    o.as_slice()
+}
+
+// CHECK-LABEL: @nonzero_u64_opt_as_slice
+#[no_mangle]
+pub fn nonzero_u64_opt_as_slice(o: &Option<NonZeroU64>) -> &[NonZeroU64] {
+    // CHECK: start:
+    // CHECK-NOT: select
+    // CHECK: ret
+    o.as_slice()
+}