1 files changed, 40 insertions, 0 deletions
diff --git a/tests/ui/abi/issue-28676.rs b/tests/ui/abi/issue-28676.rs
new file mode 100644
index 00000000000..347a840296d
--- /dev/null
+++ b/tests/ui/abi/issue-28676.rs
@@ -0,0 +1,40 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(improper_ctypes)]
+
+// ignore-wasm32-bare no libc to test ffi with
+
+#[derive(Copy, Clone)]
+pub struct Quad {
+    a: u64,
+    b: u64,
+    c: u64,
+    d: u64,
+}
+
+mod rustrt {
+    use super::Quad;
+
+    #[link(name = "rust_test_helpers", kind = "static")]
+    extern "C" {
+        pub fn get_c_many_params(
+            _: *const (),
+            _: *const (),
+            _: *const (),
+            _: *const (),
+            f: Quad,
+        ) -> u64;
+    }
+}
+
+fn test() {
+    unsafe {
+        let null = std::ptr::null();
+        let q = Quad { a: 1, b: 2, c: 3, d: 4 };
+        assert_eq!(rustrt::get_c_many_params(null, null, null, null, q), q.c);
+    }
+}
+
+pub fn main() {
+    test();
+}