diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug649937.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug649937.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,21 @@
+// Binary: cache/js-dbg-64-a3eeee8f7803-linux
+// Flags: -m -n
+//
+var i = 0;
+var gTestcases = new Array;
+var gTc = gTestcases;
+function TestCase(n, d, e, a) {
+  this.description=d;
+  gTestcases[gTc++]=this;
+}
+function writeTestCaseResult( expect, actual, string ) {};
+new TestCase;
+test();
+function test() {
+  for ( gTc=0 ; ; ) {
+    i++;
+    if (i > 20) { break; }
+    gTestcases[gTc].description+=" )";
+    gTestcases=[1,];
+  }
+}