[llvm] [AArch64] Peephole optimization to remove redundant csel instructions (PR #101483)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

The patch LGTM, with a question related to constraining the regclass.

> The clang-format issue is with a pre-existing comment, and the suggested fix makes the code worse. Should I just mark that whole comment block (or perhaps just paragraph 7?) as `clang-format off`?

Can you rebase over c7c5e05389292da7e5a87e3d1d3ef08021911a53, that should hopefully be enough to fix the formatting.

https://github.com/llvm/llvm-project/pull/101483