diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug700127.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug700127.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+// Binary: cache/js-dbg-64-921e1db5cf11-linux
+// Flags: -m -n -a
+//
+
+function addThis() {}
+function Integer( value ) {
+  try {
+    checkValue( value )
+  } catch (e) {  }
+}
+function checkValue( value ) {
+  if ( addThis() != value || value )
+        throw value='foo';
+  return value;
+}
+Integer( 3 );
+Integer( NaN );