1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/bug1653972.js b/js/src/jit-test/tests/warp/bug1653972.js
new file mode 100644
index 0000000000..953bb0077f
--- /dev/null
+++ b/js/src/jit-test/tests/warp/bug1653972.js
@@ -0,0 +1,11 @@
+function maybeSetLength(arr, b) {
+    if (b) {
+        arr.length = 0x8000_1111;
+    }
+}
+var arr = [];
+for (var i = 0; i < 1600; i++) {
+    maybeSetLength(arr, i > 1500);
+    arr.push(2);
+}
+assertEq(arr.length, 0x8000_1112);