[PATCH] D104809: [SLPVectorizer] Fix crash in vectorizeChainsInBlock for scalable vector.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added a comment.

I think it is better to change `buildTree_rec` function and check that if `S.getOpcode() == Instruction::ExtractElement && cast<ExtractElementInst>(S.getMainOp())->getVectorOperandType()->isScalalableVectorType()` then make it a gather node. Also, need to update `getEntryCost` function to filter out such extractelements from `isGatherShuffledEntry` function call and consider them as just simple gathers.


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  https://reviews.llvm.org/D104809/new/

https://reviews.llvm.org/D104809