[clang] [Clang][Interp] Diagnose use sizeless vector type as the argument of `__builtin_vectorelements` (PR #99794)

[via cfe-commits]

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@@ -2735,6 +2736,13 @@ inline bool InvalidDeclRef(InterpState &S, CodePtr OpPC,
   return CheckDeclRef(S, OpPC, DR);
 }
 
+inline bool SizelessVectorElementSize(InterpState &S, CodePtr OpPC) {
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yronglin wrote:

Thanks, agree 100%, it should keeps same behavior with https://github.com/llvm/llvm-project/blob/c8c0b18b5d58415b79ea13b62eee70c130c26a0a/clang/lib/AST/ExprConstant.cpp#L14080-L14092 .

https://github.com/llvm/llvm-project/pull/99794