[PATCH] D98132: [RISCV} Fold (select_cc (setlt X, Y), 0, ne, trueV, falseV) -> (select_cc X, Y, lt, trueV, falseV)

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: asb, luismarques, jrtc27.
Herald added subscribers: StephenFan, vkmr, frasercrmck, evandro, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya.
craig.topper requested review of this revision.
Herald added a subscriber: MaskRay.
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A setcc can be created during LegalizeDAG after select_cc has been
created. This combine will enable us to fold these late setccs.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98132

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/uadd_sat.ll
  llvm/test/CodeGen/RISCV/uadd_sat_plus.ll
  llvm/test/CodeGen/RISCV/usub_sat.ll
  llvm/test/CodeGen/RISCV/usub_sat_plus.ll
  llvm/test/CodeGen/RISCV/xaluo.ll

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