[PATCH] D103144: [X86][Costmodel] Load/store v2i16 VF=2 interleaving costs

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In D103144#2783028 <https://reviews.llvm.org/D103144#2783028>, @lebedev.ri wrote:

> Sidenote, i'm still unsure whether we should specify that Zen 3 has `FeatureFastVariableShuffle`.
> Byte-wise variable shuffle is fast, but some are ucoded.

Yes, in hindsight this feature flag needs splitting into FeatureFastVariableCrossLaneShuffle + FeatureFastVariablePerLaneShuffle,


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https://reviews.llvm.org/D103144