[PATCH] D75689: [VectorCombine] fold extract-extract-op with different extraction indexes

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

getShuffleCost already takes an Index value (default = 0) that I meant to use for this kind of thing (its currently just used for subvector insertion/extraction), so either 'tweaking' SK_Broadcast to use Index or replacing it with a SK_Splat mode would be relatively painless.


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  https://reviews.llvm.org/D75689/new/

https://reviews.llvm.org/D75689