1 files changed, 14 insertions, 0 deletions
diff --git a/tests/codegen/internalize-closures.rs b/tests/codegen/internalize-closures.rs
new file mode 100644
index 00000000000..ab3dc3fba5e
--- /dev/null
+++ b/tests/codegen/internalize-closures.rs
@@ -0,0 +1,14 @@
+// compile-flags: -C no-prepopulate-passes -Zmir-opt-level=0
+
+pub fn main() {
+
+    // We want to make sure that closures get 'internal' linkage instead of
+    // 'weak_odr' when they are not shared between codegen units
+    // FIXME(eddyb) `legacy` mangling uses `{{closure}}`, while `v0`
+    // uses `{closure#0}`, switch to the latter once `legacy` is gone.
+    // CHECK-LABEL: ; internalize_closures::main::{{.*}}closure
+    // CHECK-NEXT: ; Function Attrs:
+    // CHECK-NEXT: define internal
+    let c = |x:i32| { x + 1 };
+    let _ = c(1);
+}