[all-commits] [llvm/llvm-project] fd1dce: [LegalizeTypes][VP] Add splitting support for vp.r...

[vic via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fd1dce35bd595e6330903f58756bca26bec85809
      https://github.com/llvm/llvm-project/commit/fd1dce35bd595e6330903f58756bca26bec85809
  Author: Victor Perez <victor.perez at codeplay.com>
  Date:   2022-01-18 (Tue, 18 Jan 2022)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-fp-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-mask-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/vreductions-fp-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/vreductions-mask-vp.ll

  Log Message:
  -----------
  [LegalizeTypes][VP] Add splitting support for vp.reduction.*

Split vp.reduction.* intrinsics by splitting the vector to reduce in
two halves, perform the reduction operation in each one of them and
accumulate the results of both operations.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D117469