1 files changed, 53 insertions, 0 deletions
diff --git a/tests/codegen-units/partitioning/extern-generic.rs b/tests/codegen-units/partitioning/extern-generic.rs
new file mode 100644
index 00000000000..638ec079a0b
--- /dev/null
+++ b/tests/codegen-units/partitioning/extern-generic.rs
@@ -0,0 +1,53 @@
+//
+// We specify incremental here because we want to test the partitioning for
+// incremental compilation
+// incremental
+// compile-flags:-Zprint-mono-items=eager -Zshare-generics=y
+
+#![allow(dead_code)]
+#![crate_type="lib"]
+
+// aux-build:cgu_generic_function.rs
+extern crate cgu_generic_function;
+
+//~ MONO_ITEM fn user @@ extern_generic[Internal]
+fn user() {
+    let _ = cgu_generic_function::foo("abc");
+}
+
+mod mod1 {
+    use cgu_generic_function;
+
+    //~ MONO_ITEM fn mod1::user @@ extern_generic-mod1[Internal]
+    fn user() {
+        let _ = cgu_generic_function::foo("abc");
+    }
+
+    mod mod1 {
+        use cgu_generic_function;
+
+        //~ MONO_ITEM fn mod1::mod1::user @@ extern_generic-mod1-mod1[Internal]
+        fn user() {
+            let _ = cgu_generic_function::foo("abc");
+        }
+    }
+}
+
+mod mod2 {
+    use cgu_generic_function;
+
+    //~ MONO_ITEM fn mod2::user @@ extern_generic-mod2[Internal]
+    fn user() {
+        let _ = cgu_generic_function::foo("abc");
+    }
+}
+
+mod mod3 {
+    //~ MONO_ITEM fn mod3::non_user @@ extern_generic-mod3[Internal]
+    fn non_user() {}
+}
+
+// Make sure the two generic functions from the extern crate get instantiated
+// once for the current crate
+//~ MONO_ITEM fn cgu_generic_function::foo::<&str> @@ cgu_generic_function-in-extern_generic.volatile[External]
+//~ MONO_ITEM fn cgu_generic_function::bar::<&str> @@ cgu_generic_function-in-extern_generic.volatile[External]