1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/abi/foreign/foreign-fn-with-byval.rs b/src/test/ui/abi/foreign/foreign-fn-with-byval.rs
new file mode 100644
index 000000000..f366b6ee1
--- /dev/null
+++ b/src/test/ui/abi/foreign/foreign-fn-with-byval.rs
@@ -0,0 +1,30 @@
+// run-pass
+#![allow(improper_ctypes)]
+
+// ignore-wasm32-bare no libc to test ffi with
+
+#[derive(Copy, Clone)]
+pub struct S {
+    x: u64,
+    y: u64,
+    z: u64,
+}
+
+#[link(name = "rust_test_helpers", kind = "static")]
+extern "C" {
+    pub fn get_x(x: S) -> u64;
+    pub fn get_y(x: S) -> u64;
+    pub fn get_z(x: S) -> u64;
+}
+
+#[inline(never)]
+fn indirect_call(func: unsafe extern "C" fn(s: S) -> u64, s: S) -> u64 {
+    unsafe { func(s) }
+}
+
+fn main() {
+    let s = S { x: 1, y: 2, z: 3 };
+    assert_eq!(s.x, indirect_call(get_x, s));
+    assert_eq!(s.y, indirect_call(get_y, s));
+    assert_eq!(s.z, indirect_call(get_z, s));
+}