[llvm-branch-commits] [llvm] [sroa][profcheck] Vector selects have "unknown" branch weights (PR #163319)

[Mircea Trofin via llvm-branch-commits]

mtrofin wrote:

@nikic what's the guidance here - the `undef` is pre-existing. (Happy to patch, too, in a separate PR, but looking for guidance first)

https://github.com/llvm/llvm-project/pull/163319