mantognini added a comment.

In D126196#3533678 <https://reviews.llvm.org/D126196#3533678>, @steakhal wrote:

> LGTM;
> So you have used this tool. Could you add some notes somewhere on how to get 
> this to work?
> What is the workflow?
> Is it documented anywhere?
>
> I know that's an unrelated topic, but I might consider using/integrating this 
> stuff into our workflow.

Thanks for the review.

It's kind of underdocumented at the moment. Happy to share here the commands 
I've run. I'm not planning to update a README file at this point as I believe 
`--help` messages from various scripts should be clarified too to avoid 
conflicting/confusing information. Unfortunately, I don't have the bandwidth at 
the moment to do that properly.

Essentially, I've run this to 1) build the docker image, 2) create some docker 
volume for persistent storage, and 3) open a shell in a docker container.

  python3 ./clang/utils/analyzer/SATest.py docker --build-image
  docker volume create --name satest-build
  docker volume create --name satest-install
  python3 ./clang/utils/analyzer/SATest.py docker \
    --build-dir satest-build --clang-dir satest-install --llvm-project-dir 
$(pwd) \
    --shell

Then, in that container, I've run essentially this to generate the reference 
data (mind the final `-r`):

  python /entrypoint.py --build-llvm-only
  cd /projects
  python /scripts/SATest.py build [--projects cxxopts,...] [-j 10] -v -r

Then, to test some changes, I check out the relevant patch and re-run the above 
without `-r` to build and compare the results.

(I guess it should be possible to do all this without manually running commands 
in the container shell, but I haven't figured out how.)

I hope this helps.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D126196/new/

https://reviews.llvm.org/D126196

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