[flang-commits] [PATCH] D129316: Shift intrinsics

[Tarun Prabhu via Phabricator via flang-commits]

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This patch implements support for lowering the Shift intrinsics in Fortran 2008.

The SHIFTL, SHIFTR and SHIFTA intrinsics take an integer argument I and a SHIFT argument.

If SHIFT < 0, the intrinsics will always return 0
If SHIFT >= BIT_SIZE(I), the intrinsics will always return 0

The DSHIFTL and DSHIFTR intrinsics are implemented using calls to SHIFTL and SHIFTR as described in the standard.


https://reviews.llvm.org/D129316

Files:
  flang/lib/Lower/IntrinsicCall.cpp
  flang/test/Lower/Intrinsics/dshiftl.f90
  flang/test/Lower/Intrinsics/dshiftr.f90
  flang/test/Lower/Intrinsics/shifta.f90
  flang/test/Lower/Intrinsics/shiftl.f90
  flang/test/Lower/Intrinsics/shiftr.f90

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