1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/traits/inductive-overflow/simultaneous.rs b/tests/ui/traits/inductive-overflow/simultaneous.rs
new file mode 100644
index 000000000..40ac92146
--- /dev/null
+++ b/tests/ui/traits/inductive-overflow/simultaneous.rs
@@ -0,0 +1,20 @@
+// Regression test for #33344, initial version. This example allowed
+// arbitrary trait bounds to be synthesized.
+
+trait Tweedledum: IntoIterator {}
+trait Tweedledee: IntoIterator {}
+
+impl<T: Tweedledum> Tweedledee for T {}
+impl<T: Tweedledee> Tweedledum for T {}
+
+trait Combo: IntoIterator {}
+impl<T: Tweedledee + Tweedledum> Combo for T {}
+
+fn is_ee<T: Combo>(t: T) {
+    t.into_iter();
+}
+
+fn main() {
+    is_ee(4);
+    //~^ ERROR overflow evaluating the requirement `{integer}: Tweedle
+}