[llvm] [SCEV] Pass loop pred branch as context instruction to getMinTrailingZ. (PR #160941)

[Nikita Popov via llvm-commits]

https://github.com/nikic approved this pull request.

LGTM. Agree that we shouldn't rewrite pointers with casts to add the divisibility information, so this seems like the best we can do...

https://github.com/llvm/llvm-project/pull/160941