[llvm] [AArch64] Peek through freeze in setcc if it has one_use, and is comparing against a constant (PR #153897)

[Craig Topper via llvm-commits]

topperc wrote:

I think brcond was treated specially because a branch on poison is undefined behavior. I don't know if you can do this for arbitrary setcc uses.

https://github.com/llvm/llvm-project/pull/153897