1 files changed, 25 insertions, 0 deletions
diff --git a/tests/codegen/some-global-nonnull.rs b/tests/codegen/some-global-nonnull.rs
new file mode 100644
index 000000000..59c47de41
--- /dev/null
+++ b/tests/codegen/some-global-nonnull.rs
@@ -0,0 +1,25 @@
+// compile-flags: -O
+
+#![crate_type = "lib"]
+
+// CHECK-LABEL: @test
+// CHECK-NEXT: start:
+// CHECK-NEXT: tail call void @ext_fn0()
+#[no_mangle]
+pub fn test() {
+    test_inner(Some(inner0));
+}
+
+fn test_inner(f_maybe: Option<fn()>) {
+    if let Some(f) = f_maybe {
+        f();
+    }
+}
+
+fn inner0() {
+    unsafe { ext_fn0() };
+}
+
+extern "C" {
+    fn ext_fn0();
+}