[clang] [Clang] Add `__builtin_reduce_addf` for ordered/unordered fp reductions (PR #176160)

[Timm Baeder via cfe-commits]

================
@@ -2662,6 +2662,14 @@ static ExprResult BuiltinVectorMathConversions(Sema &S, Expr *E) {
   return S.UsualUnaryFPConversions(Res.get());
 }
 
+static QualType GetVectorElementType(ASTContext &Context, QualType VecTy) {
----------------
tbaederr wrote:

```suggestion
static QualType getVectorElementType(ASTContext &Context, QualType VecTy) {
```

https://github.com/llvm/llvm-project/pull/176160