[PATCH] D76708: [ARM][LowOverheadLoops] Add horizontal reduction support

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: SjoerdMeijer, dmgreen.
Herald added subscribers: hiraditya, kristof.beyls.
samparker added a parent revision: D76683: [ARM][MVE] Add HorizontalReduction flag.

Add a bit more logic into the 'FalseLaneZeros' tracking to enable horizontal reductions and also make the VADDV variants validForTailPredication.


https://reviews.llvm.org/D76708

Files:
  llvm/lib/Target/ARM/ARMInstrMVE.td
  llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/vaddv.mir

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