[clang] [llvm] Add SME2 builtins for zero { zt0 } (PR #72274)

[Sander de Smalen via cfe-commits]

================
@@ -2746,19 +2746,25 @@ AArch64TargetLowering::EmitFill(MachineInstr &MI, MachineBasicBlock *BB) const {
   return BB;
 }
 
-MachineBasicBlock *AArch64TargetLowering::EmitZTSpillFill(MachineInstr &MI,
-                                                          MachineBasicBlock *BB,
-                                                          bool IsSpill) const {
+MachineBasicBlock *AArch64TargetLowering::EmitZTInstr(MachineInstr &MI,
+                                                      MachineBasicBlock *BB,
+                                                      unsigned Opcode,
+                                                      bool IsZTDest) const {
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sdesmalen-arm wrote:

nit:
```suggestion
                                                      bool Op0IsDef) const {
```

https://github.com/llvm/llvm-project/pull/72274