diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testCondSwitch3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testCondSwitch3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+
+var C1 = 1;
+
+function f(x) {
+    var s = "";
+
+    switch(x) {
+    case 0:
+        s += "0";
+    case C1:
+        s += "1";
+    }
+    return s;
+}
+
+assertEq(f(0), "01");
+assertEq(f(1), "1");
+assertEq(f(2), "");
+
+assertEq(f(true), "");
+assertEq(f(Math), "");
+