diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug756781.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug756781.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+function AddTestCase( description, expect, actual ) {
+  new TestCase( SECTION, description, expect, actual );
+}
+function TestCase(n, d, e, a) {}
+var SECTION = "String/match-004.js";
+re = /0./;
+s = 10203040506070809000;
+Number.prototype.match = String.prototype.match;
+AddRegExpCases(  re, "re = " + re , s, String(s), 1, ["02"]);
+AddRegExpCases(  re, re, s, ["02"]);
+function AddRegExpCases(
+  regexp, str_regexp, string, str_string, index, matches_array ) {
+  if ( regexp.exec(string) == null || matches_array == null ) {
+    AddTestCase( string.match(regexp) );
+  }
+  AddTestCase( string.match(regexp).input );
+  gczeal(4);
+}
+