[LLVMdev] applying a pass only on execution paths
Alexandru Ionut Diaconescu
cyrusthevirus001x at yahoo.com
Tue Mar 12 08:32:55 PDT 2013
I have a pass that is analyzing the entire module (using runOnFunction()). But I want to apply it on each execution path.
assume I have to divide my module into functions by constructing a
CallGraph and then divide every function into instructions by
construction CFG-s in the nodes of the previous mentioned CallGraph. I
assume that the execution paths from a node that I choose are all the
paths finishing in the CallGraph leaves (I should be able to communicate
between CFG-s). From that node I can see all the paths by using a graph
Is there a possibility to replace the runOnFunction() /
runOnModule() method with something user defined, like
runOnExecutionPath() ? And if so, there is in LLVM a structure that is
appropriate to store execution paths?
Another possibility can be to use getAnalysis<CallGraph> or getAnalysis<CFG>? I am confused.
Thank you a lot for any advice !
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