[PATCH] D94608: [ARM] Tail predication with constant loop bounds

[Dave Green via Phabricator via llvm-commits]

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

The TripCount for a predicated vector loop body will be ceil(ElementCount/Width). This alters the conversion of an active.lane.mask to a VCPT intrinsics to match.


https://reviews.llvm.org/D94608

Files:
  llvm/lib/Target/ARM/MVETailPredication.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/constbound.ll
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/tp-multiple-vpst.ll

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