[PATCH] D155150: [RISCV] Lower VP_CTLZ_ZERO_UNDEF/VP_CTTZ_ZERO_UNDEF/VP_CTLZ by converting to FP and extracting the exponent.

[Liao Chunyu via Phabricator via llvm-commits]

liaolucy updated this revision to Diff 541316.
liaolucy added a comment.

1.skip creating the non-VP node this node if it's a VPOpcode
2.use DAG.getVPZExtOrTrunc
3.rebase
Thanks


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155150/new/

https://reviews.llvm.org/D155150

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/ctlz-vp.ll
  llvm/test/CodeGen/RISCV/rvv/cttz-vp.ll

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