1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/const-generics/overlapping_impls.rs b/tests/ui/const-generics/overlapping_impls.rs
new file mode 100644
index 000000000..e599eadd8
--- /dev/null
+++ b/tests/ui/const-generics/overlapping_impls.rs
@@ -0,0 +1,36 @@
+// check-pass
+#![allow(incomplete_features)]
+#![feature(adt_const_params)]
+#![feature(generic_const_exprs)]
+use std::marker::PhantomData;
+
+struct Foo<const I: i32, const J: i32> {}
+
+const ONE: i32 = 1;
+const TWO: i32 = 2;
+
+impl<const I: i32> Foo<I, ONE> {
+    pub fn foo() {}
+}
+
+impl<const I: i32> Foo<I, TWO> {
+    pub fn foo() {}
+}
+
+
+pub struct Foo2<const P: Protocol, T> {
+    _marker: PhantomData<T>,
+}
+
+#[derive(PartialEq, Eq)]
+pub enum Protocol {
+    Variant1,
+    Variant2,
+}
+
+pub trait Bar {}
+
+impl<T> Bar for Foo2<{ Protocol::Variant1 }, T> {}
+impl<T> Bar for Foo2<{ Protocol::Variant2 }, T> {}
+
+fn main() {}