1 files changed, 55 insertions, 0 deletions
diff --git a/tests/codegen-units/item-collection/generic-functions.rs b/tests/codegen-units/item-collection/generic-functions.rs
new file mode 100644
index 000000000..04383bb8e
--- /dev/null
+++ b/tests/codegen-units/item-collection/generic-functions.rs
@@ -0,0 +1,55 @@
+// compile-flags:-Zprint-mono-items=eager
+
+#![deny(dead_code)]
+#![feature(start)]
+
+fn foo1<T1>(a: T1) -> (T1, u32) {
+    (a, 1)
+}
+
+fn foo2<T1, T2>(a: T1, b: T2) -> (T1, T2) {
+    (a, b)
+}
+
+fn foo3<T1, T2, T3>(a: T1, b: T2, c: T3) -> (T1, T2, T3) {
+    (a, b, c)
+}
+
+// This function should be instantiated even if no used
+//~ MONO_ITEM fn lifetime_only
+pub fn lifetime_only<'a>(a: &'a u32) -> &'a u32 {
+    a
+}
+
+//~ MONO_ITEM fn start
+#[start]
+fn start(_: isize, _: *const *const u8) -> isize {
+    //~ MONO_ITEM fn foo1::<i32>
+    let _ = foo1(2i32);
+    //~ MONO_ITEM fn foo1::<i64>
+    let _ = foo1(2i64);
+    //~ MONO_ITEM fn foo1::<&str>
+    let _ = foo1("abc");
+    //~ MONO_ITEM fn foo1::<char>
+    let _ = foo1('v');
+
+    //~ MONO_ITEM fn foo2::<i32, i32>
+    let _ = foo2(2i32, 2i32);
+    //~ MONO_ITEM fn foo2::<i64, &str>
+    let _ = foo2(2i64, "abc");
+    //~ MONO_ITEM fn foo2::<&str, usize>
+    let _ = foo2("a", 2usize);
+    //~ MONO_ITEM fn foo2::<char, ()>
+    let _ = foo2('v', ());
+
+    //~ MONO_ITEM fn foo3::<i32, i32, i32>
+    let _ = foo3(2i32, 2i32, 2i32);
+    //~ MONO_ITEM fn foo3::<i64, &str, char>
+    let _ = foo3(2i64, "abc", 'c');
+    //~ MONO_ITEM fn foo3::<i16, &str, usize>
+    let _ = foo3(0i16, "a", 2usize);
+    //~ MONO_ITEM fn foo3::<char, (), ()>
+    let _ = foo3('v', (), ());
+
+    0
+}