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

[Sander de Smalen via llvm-commits]

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@@ -1308,6 +1307,26 @@ AArch64EpilogueEmitter::AArch64EpilogueEmitter(MachineFunction &MF,
   SEHEpilogueStartI = MBB.end();
 }
 
+void AArch64EpilogueEmitter::moveSPBelowFP(MachineBasicBlock::iterator MBBI,
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sdesmalen-arm wrote:

I find this name a little confusing, can you name it `deallocateStackSpace` instead and pass in base register `AArch64::FP` as a parameter to the function?

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