diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug995826.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug995826.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,5 @@
+function f(x) {
+        return Math.round(-Math.tan(x > 0))
+}
+f(2)
+assertEq(f(-1), -0);