[LLVMdev] Program Dependence Graph (PDG) in LLVM
criswell at illinois.edu
Tue Oct 30 07:41:38 PDT 2012
On 10/30/12 3:47 AM, Milad Mohammadi wrote:
> Is there a way to use LLVM to build the visual representation of
> program dependence graph (PDG) of a routine/program?
> From looking at
> it looks like there is an incomplete implementation of PDG in LLVM.
> However, when I search within LLVM3.0 package, I don't find the .cpp/h
> code. So, I also wonder if this code is no longer supported.
No, I don't think we maintain this code anymore, and I'm pretty sure
it's not in mainline LLVM, either.
People are welcome, of course, to get it working again and to contribute
it. Poolalloc has a release_30 branch for LLVM 3.0, and poolalloc
mainline is following LLVM mainline (although compilation sometimes
breaks because we have limited bandwidth for updating our code to handle
LLVM API changes).
If someone were to work on a Program Dependence Graph analysis, they may
wish to examine one of the other pointer analysis implementations for
LLVM (e.g., Hardekopf's Anderson's analysis) to see if it will yield
better results than DSA.
-- John T.
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> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
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