[llvm] [AArch64] Predicate should be NE for CBNZW (PR #150287)

[David Green via llvm-commits]

https://github.com/davemgreen approved this pull request.

I don't think this is triggerable outside of `-enable-implicit-null-checks`, and then you would need an i32 that is used as a pointer. Lets go with this to make sure the code is OK going forward.

LGTM, thanks.

https://github.com/llvm/llvm-project/pull/150287