1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/bug1888346.js b/js/src/jit-test/tests/cacheir/bug1888346.js
new file mode 100644
index 0000000000..8e63d86089
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/bug1888346.js
@@ -0,0 +1,8 @@
+setJitCompilerOption("ion.frequent-bailout-threshold", 1);
+for (let i = 0; i < 49; i++) {
+  (function () {
+    let x = new (function () {})();
+    Object.defineProperty(x, "z", {});
+    x.z;
+  })();
+}