[clang] [Clang][AArch64] Require SVE or SSVE for scalable types. (PR #91356)

[Paul Walker via cfe-commits]

================
@@ -8982,11 +8982,18 @@ void Sema::CheckVariableDeclarationType(VarDecl *NewVD) 
{
     const FunctionDecl *FD = cast<FunctionDecl>(CurContext);
     llvm::StringMap<bool> CallerFeatureMap;
     Context.getFunctionFeatureMap(CallerFeatureMap, FD);
-    if (!Builtin::evaluateRequiredTargetFeatures(
-        "sve", CallerFeatureMap)) {
-      Diag(NewVD->getLocation(), diag::err_sve_vector_in_non_sve_target) << T;
-      NewVD->setInvalidDecl();
-      return;
----------------
paulwalker-arm wrote:

Is dropping the immediate return upon setting up a diagnostic intentional?

https://github.com/llvm/llvm-project/pull/91356
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