1 files changed, 21 insertions, 0 deletions

diff --git a/tests/codegen/issues/issue-58881.rs b/tests/codegen/issues/issue-58881.rs
new file mode 100644
index 000000000..00f8953d9
--- /dev/null
+++ b/tests/codegen/issues/issue-58881.rs
@@ -0,0 +1,21 @@
+// compile-flags: -C no-prepopulate-passes -Copt-level=0
+//
+// only-x86_64
+// ignore-windows
+
+#![crate_type = "lib"]
+
+extern "C" {
+    fn variadic_fn(_: i32, ...);
+}
+
+#[repr(C)]
+struct Foo(u8);
+#[repr(C)]
+struct Bar(u64, u64, u64);
+
+// Ensure that emit arguments of the correct type.
+pub unsafe fn test_call_variadic() {
+    // CHECK: call void (i32, ...) @variadic_fn(i32 0, i8 {{.*}}, {{%Bar\*|ptr}} {{.*}})
+    variadic_fn(0, Foo(0), Bar(0, 0, 0))
+}