[llvm] [SCEV] Apply loop guards to End in computeMaxBECountForLT (PR #116187)

[David Sherwood via llvm-commits]

david-arm wrote:

Hmm, that's also my bad for being too eager to accept before the pre-commit results. :) No worries - I'll take a look again once you've updated the patch!

https://github.com/llvm/llvm-project/pull/116187