[flang-commits] [PATCH] D129584: Lower F08 bit-population count intrinsics

[Tarun Prabhu via Phabricator via flang-commits]

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This patch implements lowering for the Fortran 2008 bit-population count intrinsics POPCNT and POPPAR.

POPCNT is lowered by re-implementing the algorithms from flang/Common/bit-population-count.h <https://github.com/llvm/llvm-project/blob/main/flang/include/flang/Common/bit-population-count.h> directly into MLIR.

POPVAR is implemented in terms of POPCNT.


https://reviews.llvm.org/D129584

Files:
  flang/lib/Lower/IntrinsicCall.cpp
  flang/test/Evaluate/fold-popcnt.f90
  flang/test/Lower/Intrinsics/popcnt.f90
  flang/test/Lower/Intrinsics/poppar.f90

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