[clang] [AArch64] Refactor implementation of FP8 types (NFC) (PR #118969)

[via cfe-commits]

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@@ -529,6 +531,9 @@ llvm::Type *CodeGenTypes::ConvertType(QualType T) {
       }
     case BuiltinType::SveCount:
       return llvm::TargetExtType::get(getLLVMContext(), "aarch64.svcount");
+    case BuiltinType::MFloat8:
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CarolineConcatto wrote:

What is the  difference between this change and before.
It looks like both are generation a vector of: <Info.EC x i8>. But in this case Info.EC  is replaced by 1.

Do we need case BuiltinType::MFloat8? Why the changes are not enough for the scalar type?

https://github.com/llvm/llvm-project/pull/118969