[llvm] [LV] Support scalable interleave groups for factors 3, 5, 6 and 7 (PR #141865)

[Ramkumar Ramachandra via llvm-commits]

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@@ -3217,6 +3217,62 @@ static Value *createBitOrPointerCast(IRBuilderBase &Builder, Value *V,
   return Builder.CreateBitOrPointerCast(CastVal, DstVTy);
 }
 
+static Intrinsic::ID getInterleaveIntrinsicID(unsigned Factor) {
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artagnon wrote:

Maybe put this in VectorUtils?

https://github.com/llvm/llvm-project/pull/141865