diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/fannkuch.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/fannkuch.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+function fannkuch() {
+   var count = Array(8);
+   var r = 8;
+   var done = 0;
+   while (done < 40) {
+      // write-out the first 30 permutations
+      done += r;
+      while (r != 1) { count[r - 1] = r; r--; }
+      while (true) {
+         count[r] = count[r] - 1;
+         if (count[r] > 0) break;
+         r++;
+      }
+   }
+   return done;
+}
+assertEq(fannkuch(), 41);