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Hi, EveryOne: I am travelling CFG with MachineFunction. So I want to sure it. (Preccessors' Number) < MachineBasicBlock's Number < (Successors's Number), Is it really? best regards. ___________________________________________________________ 好玩贺卡等你发，邮箱贺卡全新上线！ http://card.mail.cn.yahoo.com/ -------------- next part -------------- An HTML attachment was scr...

On Dec 3, 2009, at 9:52 PM, 任坤 wrote: > Hi, EveryOne: > > I am travelling CFG with MachineFunction. So I want to sure it. > (Preccessors' Number) < MachineBasicBlock's Number < (Successors's Number), Is it really? > Hi 任坤, I can't say for sure, though I don't think we make assurances that this is the case. If you want to traverse the CFG, there should be better ways to perform this. What order do you...

On Dec 3, 2009, at 9:52 PM, 任坤 wrote: > I am travelling CFG with MachineFunction. So I want to sure it. > (Preccessors' Number) < MachineBasicBlock's Number < (Successors's Number), Is it really? If the CFG contains loops, how could this be possible? Anyway, no you can't use MBB numbers for that. Perhaps you need the MachineDominatorTree analysis? Regards, /jakob