[PATCH] D105853: [ISel] Expand saddsat and ssubsat via asr and xor

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

The X86 vector changes look OK to me - we've reduced usage of variable blends (blendvps/blendvpd) which tends to be a particular bottleneck.


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  https://reviews.llvm.org/D105853/new/

https://reviews.llvm.org/D105853