[all-commits] [llvm/llvm-project] 3e5faf: [RISCV][llvm] Select splat_vector(constant) with P...

[Brandon Wu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3e5fafdc223a937f371d22dc05d4ab8398b13f3f
      https://github.com/llvm/llvm-project/commit/3e5fafdc223a937f371d22dc05d4ab8398b13f3f
  Author: Brandon Wu <songwu0813 at gmail.com>
  Date:   2025-11-20 (Thu, 20 Nov 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfoP.td
    M llvm/test/CodeGen/RISCV/rvp-ext-rv32.ll
    M llvm/test/CodeGen/RISCV/rvp-ext-rv64.ll

  Log Message:
  -----------
  [RISCV][llvm] Select splat_vector(constant) with PLI (#168204)

Default DAG combiner combine BUILD_VECTOR with same elements to
SPLAT_VECTOR, we can just map constant splat to PLI if possible.



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