[llvm] [SLP][REVEC] Initial commits. (PR #98269)

[Alexey Bataev via llvm-commits]

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@@ -12195,7 +12211,8 @@ Value *BoUpSLP::vectorizeOperand(TreeEntry *E, unsigned NodeIdx,
         return ShuffleBuilder.finalize(std::nullopt);
       };
       Value *V = vectorizeTree(VE, PostponedPHIs);
-      if (VF != cast<FixedVectorType>(V->getType())->getNumElements()) {
+      if ((VF * getNumElements(VL[0]->getType())) !=
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alexey-bataev wrote:

Drop extra parens

https://github.com/llvm/llvm-project/pull/98269