[all-commits] [llvm/llvm-project] fd8b2d: [flang] lower RANK intrinsic (#93694)

[jeanPerier via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fd8b2d2046508c027ccf0fffb50d665c8355997a
      https://github.com/llvm/llvm-project/commit/fd8b2d2046508c027ccf0fffb50d665c8355997a
  Author: jeanPerier <jperier at nvidia.com>
  Date:   2024-05-30 (Thu, 30 May 2024)

  Changed paths:
    M flang/include/flang/Optimizer/Builder/HLFIRTools.h
    M flang/include/flang/Optimizer/Dialect/FIROps.td
    M flang/lib/Lower/ConvertExprToHLFIR.cpp
    M flang/lib/Optimizer/Builder/HLFIRTools.cpp
    M flang/lib/Optimizer/CodeGen/CodeGen.cpp
    M flang/lib/Optimizer/Dialect/FIROps.cpp
    M flang/test/Fir/convert-to-llvm.fir

  Log Message:
  -----------
  [flang] lower RANK intrinsic (#93694)

First commit is reviewed in
https://github.com/llvm/llvm-project/pull/93682.

Lower RANK using fir.box_rank. This patches updates fir.box_rank to
accept box reference, this avoids the need of generating an assumed-rank
fir.load just for the sake of reading ALLOCATABLE/POINTER rank. The
fir.load would generate a "dynamic" memcpy that is hard to optimize
without further knowledge. A read effect is conditionally given to the
operation.



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