[all-commits] [llvm/llvm-project] ececa8: [RISCV][VLOPT] Add support for vrgather (#148249)

Mikhail R. Gadelha via All-commits all-commits at lists.llvm.org
Wed Jul 16 13:25:48 PDT 2025


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ececa877083fcbe19aa0394b280630b9d807cd6d
      https://github.com/llvm/llvm-project/commit/ececa877083fcbe19aa0394b280630b9d807cd6d
  Author: Mikhail R. Gadelha <mikhail at igalia.com>
  Date:   2025-07-16 (Wed, 16 Jul 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVVLOptimizer.cpp
    M llvm/test/CodeGen/RISCV/rvv/vl-opt-instrs.ll
    M llvm/test/CodeGen/RISCV/rvv/vl-opt-op-info.mir

  Log Message:
  -----------
  [RISCV][VLOPT] Add support for vrgather (#148249)

This PR adds support for the vrgather.vi, vrgather.vx, vrgather.vv,
vrgatherei16.vv instructions in the RISC-V VLOptimizer.

To support vrgatherei16.vv I also needed to add support for it in
getOperandLog2EEW.



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