1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/array-push-length-overflow.js b/js/src/jit-test/tests/ion/array-push-length-overflow.js
new file mode 100644
index 0000000000..4f7ef485a0
--- /dev/null
+++ b/js/src/jit-test/tests/ion/array-push-length-overflow.js
@@ -0,0 +1,14 @@
+function maybeSetLength(arr, b) {
+    with(this) {};
+    if (b)
+        arr.length = 0x7fffffff;
+}
+function test() {
+    var arr = [];
+    for (var i=0; i<2000; i++) {
+        maybeSetLength(arr, i > 1500);
+        var res = arr.push(2);
+        assertEq(res, i > 1500 ? 0x80000000 : i + 1);
+    }
+}
+test();