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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><div><p class=MsoNormal><span style='color:#1F497D'>> </span>Are you sure this is correct? One worklist treats the entry block as already analyzed, the other doesn't. One starts with no blocks enqueued, the other effectively has <i>all</i> blocks enqueued because of the iterators.<o:p></o:p></p></div><div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Well, the patch keeps all tests passing.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>How can we trigger the supposed difference in their behaviour?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Anyway, the version that “effectively has <i>all</i> blocks enqueued because of the iterators” had<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";color:#1F497D'> worklist.enqueueSuccessors(&cfg.getEntry());<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>called immediately upon the creation.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>What would be the point of enqueuing blocks onto a list that already has all blocks enqueued?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:#1F497D'>></span> Why doesn't enqueueSuccessors use enqueueBlock?<o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks for spotting that! Attaching the updated patch.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:#1F497D'>></span> Since this is only used by classes in the same component of Clang, it might make sense to put even the header in the lib/ directory. That way it doesn't show up when other people build tools on top of Clang. Then again, it is a generally reusable component.<o:p></o:p></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Yes, I think it is as generally reusable as PostOrderCFGView it builds upon (which is, similarly, only used by classes in the same component).<o:p></o:p></span></p></div></body></html>