[llvm] [VFABI] Create FunctionType for vector functions (PR #75058)

[Paul Walker via llvm-commits]

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@@ -195,6 +195,13 @@ static constexpr char const *MappingsAttrName = "vector-function-abi-variant";
 /// the presence of the attribute (see InjectTLIMappings).
 void getVectorVariantNames(const CallInst &CI,
                            SmallVectorImpl<std::string> &VariantMappings);
+
+/// Returns a vectorized FunctionType that was previously found in
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paulwalker-arm wrote:

Whilst we know there's a link to TLI I don't think it's relevant to the function's description.  What about "Constructs a function type by applying vector function information to the type of a matching scalar function."?

https://github.com/llvm/llvm-project/pull/75058