[LLVMdev] Creating and implementing an analysis group out of tree

[Eli Bendersky]

On Thu, Jun 12, 2014 at 1:10 PM, Jeremy Salwen <jeremysalwen at gmail.com>
wrote:

> Hello all,
>
> I'm trying to follow the guide http://llvm.org/docs/WritingAnLLVMPass.html
> to build an some passes and analysis groups out of tree. However, I'm
> having some trouble with crashes when I try to follow the guide.
> The first section provides a very useful example of what the whole .cpp
> file should look like for the HelloWorld pass.  Obviously it's a bit more
> complex to write the whole setup with an analysis group, an analysis pass,
> and a transform pass that uses the analysis, but example code would be
> extremely helpful, and could serve as a good starting point for anyone who
> wants to do something similar.  Is there anywhere i could find such example
> code, perhaps as part of a project, that demonstrates how to define and use
> an analysis group out of tree?
>

It's not entirely clear which part you're having a problem with. If it's
creating an analysis group, there should be samples within the LLVM source
code. If it's building out-of-tree, take a look at
https://github.com/eliben/llvm-clang-samples -- it's a repository with a
bunch of LLVM/Clang samples, all built out of tree. It keeps pretty close
track to ToT, as well as having branches for prior releases (3.3 and 3.4,
for now).

Eli
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