[all-commits] [llvm/llvm-project] 83edbd: [flang][acc] Ensure data exit action is generated ...

[Razvan Lupusoru via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 83edbd4958feb00db48d35d94d349b4e4d4482c6
      https://github.com/llvm/llvm-project/commit/83edbd4958feb00db48d35d94d349b4e4d4482c6
  Author: Razvan Lupusoru <razvan.lupusoru at gmail.com>
  Date:   2025-02-10 (Mon, 10 Feb 2025)

  Changed paths:
    M flang/lib/Lower/OpenACC.cpp
    M flang/test/Lower/OpenACC/acc-declare-unwrap-defaultbounds.f90
    M flang/test/Lower/OpenACC/acc-declare.f90
    M flang/test/Lower/OpenACC/acc-kernels-loop.f90
    M flang/test/Lower/OpenACC/acc-kernels.f90
    M flang/test/Lower/OpenACC/acc-parallel-loop.f90
    M flang/test/Lower/OpenACC/acc-parallel.f90
    M flang/test/Lower/OpenACC/acc-serial-loop.f90
    M flang/test/Lower/OpenACC/acc-serial.f90
    M mlir/lib/Dialect/OpenACC/IR/OpenACC.cpp

  Log Message:
  -----------
  [flang][acc] Ensure data exit action is generated for present & nocreate (#126560)

The acc.delete operation has semantics of decrementing present counter
and deleting the data when the counter reaches zero. Since both
acc.present and acc.nocreate are both intended to increment present
counter, this matching exit action must be inserted.

This is also what was specified in OpenACC dialect documentation:
https://mlir.llvm.org/docs/Dialects/OpenACCDialect/#operation-categories



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