[clang] [llvm] [Clang][LLVM] Implement single-single vectors MOP4{A/S} (PR #127797)

[via cfe-commits]

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@@ -376,6 +376,24 @@ let SMETargetGuard = "sme2" in {
 // Outer product and accumulate/subtract
 //
 
+multiclass MOP4<string name, string n, string t, string i, string wide, list<ImmCheck> checks> {
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Lukacma wrote:

```suggestion
multiclass MOP4<string mode, string za, string t, string i, string wide, list<ImmCheck> checks> {
```

https://github.com/llvm/llvm-project/pull/127797