[PATCH] D117469: [LegalizeTypes][VP] Add splitting support for vp.reduction.*

[Victor Perez via Phabricator via llvm-commits]

victor-eds created this revision.
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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.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117469

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

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