[PATCH] D100684: [X86][CostModel] X86TTIImpl::getMemoryOpCost(): rewrite vector handling again

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Thank you for replying!

In D100684#2754152 <https://reviews.llvm.org/D100684#2754152>, @RKSimon wrote:

> IIRC the need for those interleaved costs was because we couldn't determine accurate 'lane crossing' vs 'non lane crossing' general shuffle costs - now that we have access to the shuffle mask it might be possible to recognise these a little better.

So the comment is that i should first try to costmodel generic shuffles? (`X86TTIImpl::getShuffleCost()`)


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https://reviews.llvm.org/D100684