<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Hi,</div><div><br></div><div>I know when a pass needs other passes, it will use something like this: "AU.addRequired<LoopInfo>();". But this is usually used for the analysis passes.</div><div>When a pass needs another transform pass, can it call it automatically?</div><div>For example:</div><div>Some loop optimizations may need loop-simplify, I need add -loop-simplify before calling these passes manually, or they can call the pass -loop-simplify automatically?</div><div><br></div><div><br>Thank you <br>Regards, <br> <br>Hanbing LI </div></div></body></html>