[llvm] [AArch64] New pass for code layout optimizations. (PR #184434)

[David Green via llvm-commits]

davemgreen wrote:

Thanks - Whilst I am still sceptical of aligning functions - that sounds like you are just getting benefit from randomly aligning ever 1/n functions - the other technical issues looks OK to me now. If you can get someone else at Apple to agree that this should be enabled then it looks OK to me.

The build is failing because of a missing STATISTICS header I believe.

https://github.com/llvm/llvm-project/pull/184434