[llvm] [SLP][REVEC] Make ShuffleCostEstimator and ShuffleInstructionBuilder support vector instructions. (PR #99499)

[Alexey Bataev via llvm-commits]

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@@ -14061,7 +14061,17 @@ Value *BoUpSLP::vectorizeTree(
               CloneGEP->takeName(GEP);
             Ex = CloneGEP;
           } else {
-            Ex = Builder.CreateExtractElement(Vec, Lane);
+            if (auto *VecTy = dyn_cast<FixedVectorType>(Scalar->getType())) {
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alexey-bataev wrote:

`else if` looks natural here

https://github.com/llvm/llvm-project/pull/99499