diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/setelem-hole.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/setelem-hole.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,68 @@
+// Storing a typed value.
+function test1() {
+    var a = [];
+    for (var i=0; i<130; i++) {
+        a[i] = i + 1;
+    }
+    return a;
+}
+
+var arr = test1();
+assertEq(arr.length, 130);
+
+for (var i=0; i<130; i++)
+    assertEq(arr[i], i + 1);
+
+// Storing a Value.
+function getValue(x) {
+    var y = x & 0x3;
+    if (y == 0) return null;
+    if (y == 1) return true;
+    if (y == 2) return 1.23;
+    if (y == 3) return Math;
+    assertEq(0, 1);
+}
+getValue(0);
+getValue(1);
+
+function test2() {
+    var a = [];
+    for (var i=0; i<130; i++) {
+        a[i] = getValue(i);
+    }
+    return a;
+}
+
+var arr = test2();
+assertEq(arr.length, 130);
+
+for (var i=0; i<130; i++)
+    assertEq(arr[i], getValue(i));
+
+// Make sure the length-property is not updated if it's greater than
+// the (new) initialized length.
+function test3(arr, start, end) {
+    for (var i=start; i<end; i++) {
+        arr[i] = 10;
+    }
+}
+var a = new Array(200);
+test3(a, 10, 130);
+assertEq(a.length, 200);
+
+for (var i=10; i<130; i++)
+    assertEq(a[i], 10);
+
+test3(a, 130, 220);
+assertEq(a.length, 220);
+
+// Test constant index.
+function test4() {
+    var a = [0, 1, 2, 3, 4, 5];
+    for (var i=0; i<150; i++) {
+        a[6] = i;
+    }
+    return a;
+}
+var arr = test4();
+assertEq(arr[6], 149);