1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/traits/next-solver/tait-eq-tait.rs b/tests/ui/traits/next-solver/tait-eq-tait.rs
new file mode 100644
index 000000000..2629a124c
--- /dev/null
+++ b/tests/ui/traits/next-solver/tait-eq-tait.rs
@@ -0,0 +1,18 @@
+// compile-flags: -Znext-solver
+// check-pass
+
+// Not exactly sure if this is the inference behavior we *want*,
+// but it is a side-effect of the lazy normalization of TAITs.
+
+#![feature(type_alias_impl_trait)]
+
+fn mk<T>() -> T {
+    todo!()
+}
+
+fn main() {
+    type Tait = impl Sized;
+    type Tait2 = impl Sized;
+    let x: Tait = 1u32;
+    let y: Tait2 = x;
+}