1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/rust/compile/issue-3551.rs b/gcc/testsuite/rust/compile/issue-3551.rs
new file mode 100644
index 0000000..6d6a812
--- /dev/null
+++ b/gcc/testsuite/rust/compile/issue-3551.rs
@@ -0,0 +1,15 @@
+#[lang = "sized"]
+pub trait Sized {}
+
+#[lang = "fn_once"]
+pub trait FnOnce<Args> {
+    #[lang = "fn_once_output"]
+    type Output;
+
+    extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
+}
+
+struct Bug {
+    a: [(); (|| 0)()],
+    // { dg-error "calls in constants are limited to constant functions, tuple structs and tuple variants" "" { target *-*-* } .-1 }
+}