1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/slice-redefine-length.js b/js/src/jit-test/tests/arguments/slice-redefine-length.js
new file mode 100644
index 0000000000..9b776064d7
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/slice-redefine-length.js
@@ -0,0 +1,19 @@
+function foo() {
+  arguments.length = 2;
+  var args = Array.prototype.slice.call(arguments);
+  return bar(args);
+}
+
+function bar(args) {
+  var result = 0;
+  for (var x of args) {
+    result += x;
+  }
+  return result;
+}
+
+var sum = 0;
+for (var i = 0; i < 100; i++) {
+  sum += foo(1, 2, 3, 4, 5, 6);
+}
+assertEq(sum, 300);