[llvm-dev] How to submit a patch?

Eric Christopher via llvm-dev llvm-dev at lists.llvm.org
Thu May 9 13:52:23 PDT 2019

On Thu, May 9, 2019 at 12:54 PM Praveen Velliengiri via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Hi all,
> I'm new to llvm development and I have basic (beginner level) questions regarding the workflow of the llvm project. I want to clarify that the following steps is the workflow of the llvm project to prepare and submit a patch.
>  Clone the git repo (master) and create a branch named "test branch".
>  Make changes to the "test branch" and git fetch all the changes from remote origin to local master.
>  Rebase the "test branch" onto the local master.
>  Merge the test branch to master then start building and testing the master branch.
>  If nothing breaks, then I can create a diff file by git show HEAD -U999999 > mypatch.patch from the "master"
>  Upload the patch in the differential and submit for review.

This looks ok to me. There's also the directions at:

> Am I missing something? If so, please let me know, it will very helpful for me to start :) If you have any suggestions I would happy to hear from you.
> LLVM is a fast moving, how often I need to fetch, rebase and build. In my machine building takes about 40 minutes is there any efficient way around this?

"Recently" is probably just fine, and yeah. LLVM takes a bit to build.
Depending on platform there are probably some ways to speed it up


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