[PATCH] D97408: [RISCV] Teach CleanupVSETVLI to remove 'vsetvli zero, zero, vtype' when the vtype matches the previous vsetvli or vsetivli

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: frasercrmck, evandro, HsiangKai, arcbbb, khchen, rogfer01.
Herald added subscribers: StephenFan, vkmr, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
craig.topper requested review of this revision.
Herald added a subscriber: MaskRay.
Herald added a project: LLVM.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97408

Files:
  llvm/lib/Target/RISCV/RISCVCleanupVSETVLI.cpp
  llvm/test/CodeGen/RISCV/rvv/extractelt-fp-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/extractelt-fp-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/extractelt-int-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/extractelt-int-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-extract.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-insert.ll
  llvm/test/CodeGen/RISCV/rvv/vreductions-int-rv32.ll

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