[llvm] [AArch64] Stack probing for function prologues (PR #66524)

[Momchil Velikov via llvm-commits]

momchil-velikov wrote:

> I'm still waiting for some reply to https://reviews.llvm.org/D158084#4593014 before I continue reviewing.

I've now refactored to share between Windows and non-Windows the part that determines the probe size and whether the stack probing is enabled.

https://github.com/llvm/llvm-project/pull/66524