diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug756240.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug756240.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+function f() {
+  var x = 10;
+  var g = function(x, Int8Array, arr, f) {
+    for (var i = 0; i < 10; ++i) {
+      gc();
+    }
+  }
+  for (var i = 0; i < 10; ++i) {
+    g(100 * i + x);
+  }
+}
+f();