[LLVMdev] Accessing Dominator Tree

[david.dewey at comcast.net]

Hello, 



I am working on a project that requires me to perform some analysis on a bitcode file outside the existing LLVM analysis frameworks (opt, etc.).  In what I am doing, I need to be able to access the dominator tree for a given function.  Is there a way I can instantiate a DominatorTree object outside the existing analysis frameworks? 



I have tried several things all along the lines of: 



DominatorTree DT; 

DT.getBase().recalculate(F); 



Everything I have tried results in an assertion failure when trying to access the front() of what I assume is the DominatorTree: 



Assertion failed: !empty() && "Called front() on empty list!" 



If anyone has an example of how to do this, I would really appreciate it. 



Thanks, 



David 
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