[llvm] [llvm-dwp] Fix FoundCUUnit problem on soft-stop with DWARF5 (PR #169783)

[David Blaikie via llvm-commits]

dwblaikie wrote:

> Thanks for the review! I've added a test case to cover this scenario, using .fill to force a Type Unit offset overflow.
> 
> But I'm worried this might cause CI failures on some LLVM developers' machines due to disk exhaustion, since this test adds an additional 8GB of disk space (4GB dwo + 4GB dwp).

Yep - could you show the behavior of the test case (just running the command line tools manually) before and after this patch, and include those commands/results in the patch description? (then probably drop the test case from this, so we don't create more huge files on test machine - I think we already do have /some/ of this sort of testing, perhaps if we put this testing in the same file, it'd ensure one giant file was deleted before we created the next, and the one test file could be disabled on machines that find this cost too high, etc? Could you go find the other tests that already do this and see if we could group them all into one file, then maybe we could keep this new one?)

https://github.com/llvm/llvm-project/pull/169783