[PATCH] D85454: [ARM] Allow vecreduce_add in tail predicated loops

[Dave Green via Phabricator via llvm-commits]

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

I was temped to try to change the MVETailPredication pass to a simpler "if loop has a activelanemask, convert it to a vctp" pass. Here I've just left it as is, but allowed vector reductions through into tail predicated loops.


https://reviews.llvm.org/D85454

Files:
  llvm/lib/Target/ARM/MVETailPredication.cpp
  llvm/test/CodeGen/Thumb2/mve-vecreduce-loops.ll

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