diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/absd.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/absd.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+var do_abs = function(x) {
+    return Math.abs(x);
+}
+var i;
+for (i=0;i<50;i++)
+    do_abs(-1.5);
+assertEq(do_abs(-2.5), 2.5);