1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/typedarray-length.js b/js/src/jit-test/tests/ion/typedarray-length.js
new file mode 100644
index 0000000000..6c2e1ceec3
--- /dev/null
+++ b/js/src/jit-test/tests/ion/typedarray-length.js
@@ -0,0 +1,24 @@
+function detachArrayBufferEventually(arr, i)
+{
+  with (arr)
+  {
+    // prevent inlining
+  }
+
+  if (i === 2000)
+    detachArrayBuffer(arr.buffer);
+}
+
+function test()
+{
+  var buf = new ArrayBuffer(1000);
+  var ta = new Int8Array(buf);
+
+  for (var i = 0; i < 2500; i++)
+  {
+    detachArrayBufferEventually(ta, i);
+    assertEq(ta.length, i >= 2000 ? 0 : 1000);
+  }
+}
+
+test();