[all-commits] [llvm/llvm-project] 46caad: [flang][cuda] Do not produce data transfer in offl...

[Valentin Clement (バレンタイン クレメン) via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 46caad52ac14cefd6f9cf3188863818e330f3844
      https://github.com/llvm/llvm-project/commit/46caad52ac14cefd6f9cf3188863818e330f3844
  Author: Valentin Clement (バレンタイン クレメン) <clementval at gmail.com>
  Date:   2025-07-08 (Tue, 08 Jul 2025)

  Changed paths:
    M flang/include/flang/Optimizer/Builder/CUFCommon.h
    M flang/include/flang/Support/Fortran-features.h
    M flang/lib/Lower/Bridge.cpp
    M flang/lib/Optimizer/Builder/CUFCommon.cpp
    M flang/lib/Semantics/assignment.cpp
    M flang/lib/Semantics/assignment.h
    M flang/lib/Semantics/check-cuda.cpp
    M flang/lib/Semantics/check-cuda.h
    M flang/test/Lower/CUDA/cuda-data-transfer.cuf
    M flang/tools/bbc/bbc.cpp

  Log Message:
  -----------
  [flang][cuda] Do not produce data transfer in offloaded do concurrent (#147435)

If a `do concurrent` loop is offloaded then there should be no CUDA data
transfer in it. Update the semantic and lowering to take that into
account.

`AssignmentChecker` has to be put into a separate pass because the
checkers in `SemanticsVisitor` cannot have the same `Enter/Leave`
functions. The `DoForallChecker` already has `Eneter/Leave` functions
for the `DoConstruct`.



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