1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/cross_inference_pattern_bug_no_type.rs b/src/test/ui/type-alias-impl-trait/cross_inference_pattern_bug_no_type.rs
new file mode 100644
index 000000000..328096d44
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/cross_inference_pattern_bug_no_type.rs
@@ -0,0 +1,13 @@
+// known-bug: #96572
+// compile-flags: --edition=2021 --crate-type=lib
+// rustc-env:RUST_BACKTRACE=0
+
+// tracked in https://github.com/rust-lang/rust/issues/96572
+
+#![feature(type_alias_impl_trait)]
+
+fn main() {
+    type T = impl Copy;  // error: unconstrained opaque type
+    let foo: T = (1u32, 2u32);
+    let (a, b) = foo; // removing this line makes the code compile
+}