[llvm] [AArch64] SME implementation for agnostic-ZA functions (PR #120150)

[Paul Walker via llvm-commits]

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@@ -252,6 +260,12 @@ class AArch64FunctionInfo final : public MachineFunctionInfo {
     return PredicateRegForFillSpill;
   }
 
+  Register getSMESaveBufferAddr() const { return SMESaveBufferAddr; };
+  void setSMESaveBufferAddr(Register Reg) { SMESaveBufferAddr = Reg; };
+
+  unsigned getSMESaveBufferUsed() const { return SMESaveBufferUsed; };
+  void setSMESaveBufferUsed(bool Used = true) { SMESaveBufferUsed = Used; };
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paulwalker-arm wrote:

Up to you but I suggest `isSMESaveBufferUsed()`.

https://github.com/llvm/llvm-project/pull/120150