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

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jul 14 02:29:34 PDT 2021

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RKSimon added a comment.

X86 already custom lowers a couple of add/subsat types so adding a couple of other cases would be fine. Annoyingly we don't have a vXi64 ashr until AVX512....


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

https://reviews.llvm.org/D105853

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