llvm dev - May 2009 - [LLVMdev] Post-dominator data.

This is surely a simple question, but it appears that  
PostDominatorTree does not provide an interface to get at post  
dominator data.  Also, it is not a concrete subclass of DominatorTree,  
as is presented in the doxygen page and the commented source.  Any way  
to get post-dom data without hacking it into PostDominatorTree?

Is our post-dom pass solid? I thought it's fair expensive so we avoid  
using it.

Evan

Sent from my iPhone

On May 29, 2009, at 6:14 PM, mgill404 at ucla.edu wrote:
> This is surely a simple question, but it appears that
> PostDominatorTree does not provide an interface to get at post
> dominator data.  Also, it is not a concrete subclass of DominatorTree,
> as is presented in the doxygen page and the commented source.  Any way
> to get post-dom data without hacking it into PostDominatorTree?
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

On Sat, May 30, 2009 at 3:54 PM, Evan Cheng<evan.cheng at apple.com>
wrote:
> Is our post-dom pass solid? I thought it's fair expensive so we avoid
> using it.
Our "post-dom pass" is just the dom pass with a boolean set the other
way. I don't see how it could be significantly more expensive.  I
don't think any in-tree passes use it, though.

-Eli