[all-commits] [llvm/llvm-project] 9a7c7f: [Clang][RISCV] Add packed widening add accumulate ...

[陈子昂 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a7c7f2b3a40c32e53dcaf2637087851d694cc60
      https://github.com/llvm/llvm-project/commit/9a7c7f2b3a40c32e53dcaf2637087851d694cc60
  Author: 陈子昂 <2802328816 at qq.com>
  Date:   2026-09-14 (Mon, 14 Sep 2026)

  Changed paths:
    M clang/lib/Headers/riscv_packed_simd.h
    M clang/test/CodeGen/RISCV/rvp-intrinsics.c
    M cross-project-tests/intrinsic-header-tests/riscv_packed_simd.c
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfoP.td
    A llvm/test/CodeGen/RISCV/rvp-widening-add-acc.ll

  Log Message:
  -----------
  [Clang][RISCV] Add packed widening add accumulate intrinsics (#221622)

Add Clang header intrinsics for the RISC-V P-extension packed widening
add accumulate operations:

- __riscv_pwadda_i16x4
- __riscv_pwadda_i32x2
- __riscv_pwaddau_u16x4
- __riscv_pwaddau_u32x2

The header wrappers use generic LLVM IR. RV32 selects the direct
`pwadda.*` / `pwaddau.*` instructions. RV64 lowers the generic IR to the
decomposition specified by the P-extension intrinsic spec, including
`zip16p + pli.h + pm2adda.h/pm2addau.h` for the halfword forms.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications