diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug685472.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug685472.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+// |jit-test| error:TypeError
+
+// Binary: cache/js-dbg-64-b7d269a291b6-linux
+// Flags: -m -n -a
+//
+
+function Integer(value, exception) {
+    try {} catch (e) {}
+    new(value = this)(this.value);
+    Math.floor(({})[value.Math, this].abstract)
+}
+new Integer(3, false);