1 files changed, 21 insertions, 0 deletions
diff --git a/tests/run-make/wasm-custom-sections-opt/foo.rs b/tests/run-make/wasm-custom-sections-opt/foo.rs
new file mode 100644
index 00000000000..9af7728b7f3
--- /dev/null
+++ b/tests/run-make/wasm-custom-sections-opt/foo.rs
@@ -0,0 +1,21 @@
+#![crate_type = "cdylib"]
+#![deny(warnings)]
+
+#[link_section = "foo"]
+pub static A: [u8; 2] = [1, 2];
+
+// make sure this is in another CGU
+pub mod another {
+    #[link_section = "foo"]
+    pub static FOO: [u8; 2] = [3, 4];
+
+    pub fn foo() {}
+}
+
+#[no_mangle]
+pub extern fn foo() {
+    // This will import `another::foo` through ThinLTO passes, and it better not
+    // also accidentally import the `FOO` custom section into this module as
+    // well
+    another::foo();
+}