[llvm] [AArch64] Optimise MOVI + CMGT to CMGE (PR #74499)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Sounds great. are you interested in adding slt 1 while you are here?
https://godbolt.org/z/oW8MKnKqf

https://github.com/llvm/llvm-project/pull/74499