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

[via cfe-commits]

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@@ -243,6 +243,7 @@ AArch64ABIInfo::convertFixedToScalableVectorType(const VectorType *VT) const {
 
     case BuiltinType::SChar:
     case BuiltinType::UChar:
+    case BuiltinType::MFloat8:
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CarolineConcatto wrote:

Is this used by any intrinsic? Can we have test for this? 

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