1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/external-arguments-set-length.js b/js/src/jit-test/tests/arguments/external-arguments-set-length.js
new file mode 100644
index 0000000000..85ac8a5481
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/external-arguments-set-length.js
@@ -0,0 +1,14 @@
+function foo(x,y) {
+    arguments.length = 3;
+    return bar(arguments);
+}
+
+function bar(x) {
+    return x.length + arguments.length;
+}
+
+var sum = 0;
+for (var i = 0; i < 100; i++) {
+    sum += foo(1,2);
+}
+assertEq(sum, 400);