[PATCH] D109726: [X86] Improve `matchBinaryShuffle()`'s `BLEND` lowering with per-element all-zero/all-ones knowledge

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 373240.
lebedev.ri edited the summary of this revision.
lebedev.ri added a comment.

@RKSimon thank you for taking a look!
Rebased, refactored.

I do think it would be nice to handle this in general demandedelts,
but i'm currently just not seeing how we can do that.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109726/new/

https://reviews.llvm.org/D109726

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/insertelement-ones.ll

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