[llvm] [LLVM][CodeGen][SVE] rev(whilelo(a, b)) -> whilehi(b, a). (PR #88294)

[Graham Hunter via llvm-commits]

https://github.com/huntergr-arm approved this pull request.

Hadn't appreciated that whilegt and friends counted backwards from the last element, but it makes sense. LGTM.

https://github.com/llvm/llvm-project/pull/88294