[llvm] [NFC][Scalarizer][TargetTransformInfo] Add `isVectorIntrinsicWithOverloadTypeAtArg` api (PR #114849)

[Finn Plummer via llvm-commits]

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@@ -152,7 +152,8 @@ bool isVectorIntrinsicWithScalarOpAtArg(Intrinsic::ID ID,
 
 /// Identifies if the vector form of the intrinsic is overloaded on the type of
 /// the operand at index \p OpdIdx, or on the return type if \p OpdIdx is -1.
-bool isVectorIntrinsicWithOverloadTypeAtArg(Intrinsic::ID ID, int OpdIdx);
+bool isVectorIntrinsicWithOverloadTypeAtArg(
+    Intrinsic::ID ID, int OpdIdx, const TargetTransformInfo *TTI = nullptr);
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inbelic wrote:

Could also do with an `std::optional` pointer here, not sure on what is preferred.

https://github.com/llvm/llvm-project/pull/114849