[all-commits] [llvm/llvm-project] 2a7ca3: [RISCV] Remove codegen for vp_ctlz, vp_cttz, vp_ct...

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2a7ca3a3fa46c544704e9ca6d8006b110af652ab
      https://github.com/llvm/llvm-project/commit/2a7ca3a3fa46c544704e9ca6d8006b110af652ab
  Author: Luke Lau <luke at igalia.com>
  Date:   2026-04-02 (Thu, 02 Apr 2026)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
    M llvm/test/CodeGen/RISCV/rvv/ctlz-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/ctpop-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/cttz-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-ctlz-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-ctpop-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-cttz-vp.ll

  Log Message:
  -----------
  [RISCV] Remove codegen for vp_ctlz, vp_cttz, vp_ctpop (#189904)

Part of the work to remove trivial VP intrinsics from the RISC-V
backend, see
https://discourse.llvm.org/t/rfc-remove-codegen-support-for-trivial-vp-intrinsics-in-the-risc-v-backend/87999

This splits off 3 intrinsics from #179622.

Note that vp.cttz is the elementwise version, not vp.cttz.elts.



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