[llvm] [AArch64] Fix case of 0 dynamic alloc when stack probing (PR #74806)

[Momchil Velikov via llvm-commits]

momchil-velikov wrote:

Thanks for fining that!
The patch LGTM.

How about just changing the final  `str xzr, [sp]` to `ldr xzr, [sp]` ? Thoughts?


https://github.com/llvm/llvm-project/pull/74806