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2012 Aug 08
1
[LLVMdev] Creating DAGs
...ve also searched the archives of this list.
My question is: Is it possible to create a DAG from an llvm::Module?
I would like to do this independent of a specific architecture using
LLVM IR. In particular, I am interested in using a DAG to compute the
Strahler number (http://en.wikipedia.org/wiki/Strahler_number) of the
graph to determine the minimum number of register needed to evaluate
an expression tree.
I have read through the documentation on SelectionDAG. However, this
seems to require a TargetMachine. Is there a way to create a graph
without a target? This may be a fundamental lack of understa...