[all-commits] [llvm/llvm-project] f7aad6: [RISCV] Fold vector shift of sext/zext to widening...

[Piotr Fusik via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f7aad60cd1a538fb1eb5ab861f8c29ddba5283a4
      https://github.com/llvm/llvm-project/commit/f7aad60cd1a538fb1eb5ab861f8c29ddba5283a4
  Author: Piotr Fusik <p.fusik at samsung.com>
  Date:   2025-02-04 (Tue, 04 Feb 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-gather.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-scatter.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vpgather.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vpscatter.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vwsll.ll
    M llvm/test/CodeGen/RISCV/rvv/mgather-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/mscatter-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/vpgather-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/vpscatter-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/vwsll-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/vwsll-vp.ll

  Log Message:
  -----------
  [RISCV] Fold vector shift of sext/zext to widening multiply (#121563)

    (shl (sext X), C) -> (vwmulsu X, 1u << C)
    (shl (zext X), C) -> (vwmulu  X, 1u << C)



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