[PATCH] D132517: [AArch64][DAGCombine] Fix a bug in performBuildVectorCombine where it could produce an invalid EXTRACT_SUBVECTOR

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

> Something like this will produce an invalid extract_subvector:

Could you attach a test case?


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  https://reviews.llvm.org/D132517/new/

https://reviews.llvm.org/D132517