[PATCH] D100851: [DAGCombiner] Support all-ones/all-zeros SPLAT_VECTOR in more combines

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck created this revision.
frasercrmck added reviewers: david-arm, junparser, sdesmalen, kmclaughlin, craig.topper, efriedma, paulwalker-arm, ctetreau.
Herald added subscribers: ecnelises, luismarques, apazos, sameer.abuasal, s.egerton, Jim, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, jrtc27, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
frasercrmck requested review of this revision.
Herald added subscribers: llvm-commits, MaskRay.
Herald added a project: LLVM.

This patch adds incrementally-better support for SPLAT_VECTOR in a
handful of vector combines by changing a few more
isBuildVectorAllOnes/isBuildVectorAllZeros to the equivalent
isConstantSplatVectorAllOnes/Zeros calls.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100851

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/RISCV/rvv/vdiv-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vdiv-sdnode-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vor-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vor-sdnode-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vrem-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vrem-sdnode-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vselect-fp-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vselect-fp-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vselect-int-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vselect-int-rv64.ll

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