1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/chalkify/generic_impls.rs b/src/test/ui/chalkify/generic_impls.rs
new file mode 100644
index 000000000..d70c6f805
--- /dev/null
+++ b/src/test/ui/chalkify/generic_impls.rs
@@ -0,0 +1,18 @@
+// compile-flags: -Z chalk
+
+trait Foo { }
+
+impl<T> Foo for (T, u32) { }
+
+fn gimme<F: Foo>() { }
+
+fn foo<T>() {
+    gimme::<(T, u32)>();
+    gimme::<(Option<T>, u32)>();
+    gimme::<(Option<T>, f32)>(); //~ ERROR
+}
+
+fn main() {
+    gimme::<(i32, u32)>();
+    gimme::<(i32, f32)>(); //~ ERROR
+}