1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/where-clauses/where-clauses-unboxed-closures.rs b/src/test/ui/where-clauses/where-clauses-unboxed-closures.rs
new file mode 100644
index 000000000..6964cfa2e
--- /dev/null
+++ b/src/test/ui/where-clauses/where-clauses-unboxed-closures.rs
@@ -0,0 +1,17 @@
+// run-pass
+#![allow(unused_variables)]
+// pretty-expanded FIXME #23616
+
+struct Bencher;
+
+// ICE
+fn warm_up<'a, F>(f: F) where F: Fn(&'a mut Bencher) {
+}
+
+fn main() {
+    // ICE trigger
+    warm_up(|b: &mut Bencher| () );
+
+    // OK
+    warm_up(|b| () );
+}