[all-commits] [llvm/llvm-project] d065b0: [RISCV] Optimize vp.load with an all-ones mask

[Fraser Cormack via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d065b03801d93551dcb4cbc6d74e804775c7ed03
      https://github.com/llvm/llvm-project/commit/d065b03801d93551dcb4cbc6d74e804775c7ed03
  Author: Fraser Cormack <fraser at codeplay.com>
  Date:   2021-11-02 (Tue, 02 Nov 2021)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vpload.ll
    M llvm/test/CodeGen/RISCV/rvv/vpload.ll

  Log Message:
  -----------
  [RISCV] Optimize vp.load with an all-ones mask

Similar to D110206, this patch optimizes unmasked vp.load intrinsics to
avoid the need of a vmset instruction to set the mask. It does so by
selecting a riscv_vle intrinsic rather than a riscv_vle_mask intrinsic.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D113022