[PATCH] D106051: [ARM] Extend more reductions during lowering

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: samtebbs, SjoerdMeijer, NickGuy, ostannard, simon_tatham.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
dmgreen requested review of this revision.
Herald added a project: LLVM.

This relaxes the VMLAV and VADDV reduction recognition code to handle smaller than legal types, extending them as needed. This was already handled for some reductions, this extends that to more types in a more generic way. If a smaller than legal value is found it is extended to the legal type as needed.


https://reviews.llvm.org/D106051

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/test/CodeGen/Thumb2/mve-vecreduce-add.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-addpred.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-mla.ll
  llvm/test/CodeGen/Thumb2/mve-vecreduce-mlapred.ll

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