[PATCH] D119759: [RISCV] Match shufflevector corresponding to slideup.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: frasercrmck, khchen, rogfer01.
Herald added subscribers: VincentWu, luke957, achieveartificialintelligence, vkmr, evandro, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, edward-jones, zzheng, jrtc27, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
craig.topper requested review of this revision.
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Herald added a project: LLVM.

This generalizes isElementRotate to work when there's only a single
slide needed. I've removed matchShuffleAsSlideDown which is now
redundant.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D119759

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-shuffles.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int-shuffles.ll

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