[PATCH] D48725: [SLP] Vectorize bit-parallel operations with SWAR.

[Clement Courbet via Phabricator via llvm-commits]

courbet added a comment.

In https://reviews.llvm.org/D48725#1147990, @courbet wrote:

> In https://reviews.llvm.org/D48725#1147898, @ABataev wrote:
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> >
>




>> 2. You need to update the cost model for this kind of transformation.
> 
> Thanks. This is my first change to the SLP vectorizer, do you have any pointers to documentation on how to do this ?

Actually since I only do load/store now I think this already covers it: `X86TTIImpl::getMemoryOpCost`. Am I right ?


Repository:
  rL LLVM

https://reviews.llvm.org/D48725