1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/write-frozen-dense.js b/js/src/jit-test/tests/basic/write-frozen-dense.js
new file mode 100644
index 000000000..7e09c330b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/write-frozen-dense.js
@@ -0,0 +1,8 @@
+var t = [4];
+var stop;
+Object.freeze(t);
+do {
+    stop = inIon();
+    t[0] = 2;
+    assertEq(t[0], 4);
+} while (!stop);