[PATCH] D80597: [TTI] New target hook emitGetActiveLaneMask

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer created this revision.
SjoerdMeijer added reviewers: efriedma, fhahn, samparker, rogfer01, simoll, lebedev.ri, Ayal, vkmr.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

This is split off from D79100 <https://reviews.llvm.org/D79100> and adds a new target hook emitGetActiveLaneMask that can be queried to check if the intrinsic @llvm.get.active.lane.mask() is supported by the backend and if it should be emitted for a given loop.


https://reviews.llvm.org/D80597

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.h

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