[clang] [AArch64] Enable vscale_range with +sme (PR #124466)

[Amara Emerson via cfe-commits]

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@@ -708,7 +708,7 @@ AArch64TargetInfo::getVScaleRange(const LangOptions &LangOpts) const {
     return std::pair<unsigned, unsigned>(
         LangOpts.VScaleMin ? LangOpts.VScaleMin : 1, LangOpts.VScaleMax);
 
-  if (hasFeature("sve"))
+  if (hasFeature("sve") || hasFeature("sme"))
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aemerson wrote:

I agree for SME-only platforms it seems fine. But what's the meaning of vscale_range when you have a CPU that has both? At that point do we need to disambiguate the different potential vscale_range's for VL & SVL?

https://github.com/llvm/llvm-project/pull/124466