From 13de732df5d6988a4377247c04b64efed080cae0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jana=20D=C3=B6nszelmann?= <jana@donsz.nl>
Date: Mon, 8 Dec 2025 11:47:25 +0100
Subject: [PATCH] add test for symbol mangling issue

---
 tests/ui/eii/same-symbol.rs         | 29 +++++++++++++++++++++++++++++
 tests/ui/eii/same-symbol.run.stdout |  2 ++
 2 files changed, 31 insertions(+)
 create mode 100644 tests/ui/eii/same-symbol.rs
 create mode 100644 tests/ui/eii/same-symbol.run.stdout

diff --git a/tests/ui/eii/same-symbol.rs b/tests/ui/eii/same-symbol.rs
new file mode 100644
index 000000000000..d24e5c4266bb
--- /dev/null
+++ b/tests/ui/eii/same-symbol.rs
@@ -0,0 +1,29 @@
+//@ run-pass
+//@ check-run-results
+//@ ignore-backends: gcc
+#![feature(extern_item_impls)]
+
+pub mod a {
+    #[eii(foo)]
+    pub fn foo();
+}
+
+pub mod b {
+    #[eii(foo)]
+    pub fn foo();
+}
+
+#[a::foo]
+fn a_foo_impl() {
+    println!("foo1");
+}
+
+#[b::foo]
+fn b_foo_impl() {
+    println!("foo2");
+}
+
+fn main() {
+    a::foo();
+    b::foo();
+}
diff --git a/tests/ui/eii/same-symbol.run.stdout b/tests/ui/eii/same-symbol.run.stdout
new file mode 100644
index 000000000000..873ddc86a9d5
--- /dev/null
+++ b/tests/ui/eii/same-symbol.run.stdout
@@ -0,0 +1,2 @@
+foo1
+foo1