diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/gc/bug-961877.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/gc/bug-961877.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+g = Function("", "for (var i = 0; i < 0; ++i) { eval('this.arg'+0 +'=arg'+0); }");
+Math.abs(undefined);
+gczeal(2,300);
+evaluate("\
+var toFloat32 = (function() {\
+    var f32 = new Float32Array(1);\
+    function f(x) f32[0] = x;\
+    return f;\
+})();\
+for (var i = 0; i < 64; ++i) {\
+    var p = Math.pow(2, i) + 1;\
+    g(toFloat32(p));\
+    toFloat32(-p);\
+}");