Comment by vchuravy

> And dealing with bugs in LLVM is basically a no-go, I've seen this happen in the Julia ecosystem as well.

As one of the folks dealing with LLVM bugs in the Julia ecosystem.

Yes it requires a distinct skillet different from working on the higher-level Julia compiler and yes it can sometimes take ages to merge bugfixes upstream, but we actually have a rather good and productive relationship with upstream and the project would get a lot less done if we decided to get rid of LLVM.

In particular GPU support and HPC support (hello PPC) depends on it.

But this is also why we maintain the stance that people need to build Julia against our patchset/fork and will not invest time in bugs filled against Julia builds that didn't use those patches. This happens in particular with distro builds.