1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/arrays-slow-2.js b/js/src/jit-test/tests/for-of/arrays-slow-2.js
new file mode 100644
index 0000000000..dc4cf4fa79
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/arrays-slow-2.js
@@ -0,0 +1,10 @@
+// Two for-of loops on the same slow array get distinct iterators.
+
+var a = [1, 2, 3];
+a.slow = true;
+var s = '';
+for (var x of a)
+    s += x;
+for (var y of a)
+    s += y;
+assertEq(s, '123123');