If cti_optimize_from_ret fires but finds it has no work to do, it currently just returns. This means that it will fire again the next time even though there is still likely to be no work to do. This may cause slow downs since cti_optimize_from_ret is a stub call.
Created attachment 111719 [details] the patch
Comment on attachment 111719 [details] the patch r=me
Landed in http://trac.webkit.org/changeset/97940