1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/testArrayBufferByteLength.js b/js/src/jit-test/tests/ion/testArrayBufferByteLength.js
new file mode 100644
index 0000000000..bf5fc49833
--- /dev/null
+++ b/js/src/jit-test/tests/ion/testArrayBufferByteLength.js
@@ -0,0 +1,20 @@
+// |jit-test| --ion-warmup-threshold=50
+
+var ArrayBufferByteLength = getSelfHostedValue("ArrayBufferByteLength");
+
+function testBasic() {
+  var arr = [1, 2, 3];
+  var tarr = new Int32Array(arr);
+  var abuf = tarr.buffer;
+
+  var arrLength = arr.length;
+  var bytesPerElement = Int32Array.BYTES_PER_ELEMENT;
+
+  var f = function() {
+    assertEq(ArrayBufferByteLength(abuf), arrLength * bytesPerElement);
+  };
+  do {
+    f();
+  } while (!inIon());
+}
+testBasic();