[PATCH] D94103: [ConstProp] Constant propagation for get.active.lane.mask instrinsics

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: SjoerdMeijer, efriedma, nikic, spatel.
Herald added subscribers: hiraditya, kristof.beyls.
dmgreen requested review of this revision.
Herald added a project: LLVM.

Similar to the Arm VCTP intrinsics, if the operands of an active.lane.mask are both known, the constant lane mask can be calculated. This can come up after unrolling the loops.


https://reviews.llvm.org/D94103

Files:
  llvm/lib/Analysis/ConstantFolding.cpp
  llvm/test/Transforms/InstSimplify/ConstProp/active-lane-mask.ll

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