[llvm] [InstCombine] add control for SimplifyDemandedVectorElts depth limit (PR #113717)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

What is the depth cutoff that you plan to use? And do you have a sharable test case demonstrating the compile-time issue?

I'm not opposed to having the option, but at the same time it would be nice to address the issue upstream, as other people may also encounter the issue.

https://github.com/llvm/llvm-project/pull/113717