[llvm] [AArch64][SME] Support `aarch64-split-sve-objects` with VLAs/realignment (PR #163816)

[Gaëtan Bossu via llvm-commits]

================
@@ -3512,14 +3512,13 @@ define i32 @svecc_call_dynamic_alloca(<4 x i16> %P0, i32 %P1, i32 %P2, <vscale x
 ;
 ; CHECK64-LABEL: svecc_call_dynamic_alloca:
----------------
gbossu wrote:

Nit: It would be nice to add a small comment with the expected behaviour for each function whose CHECK lines change. E.g. We are expected a stack size of X and spill/reloads at these places.

https://github.com/llvm/llvm-project/pull/163816