[all-commits] [llvm/llvm-project] abdd45: [flang][openacc] fix bugs with default(none) check...

[Andre Kuhlenschmidt via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: abdd4536ce0fc75c7a4ddcc1da5913ec5e028091
      https://github.com/llvm/llvm-project/commit/abdd4536ce0fc75c7a4ddcc1da5913ec5e028091
  Author: Andre Kuhlenschmidt <andre.kuhlenschmidt at gmail.com>
  Date:   2025-07-18 (Fri, 18 Jul 2025)

  Changed paths:
    M flang/lib/Semantics/resolve-directives.cpp
    M flang/test/Lower/OpenACC/acc-loop.f90
    M flang/test/Semantics/OpenACC/acc-kernels-loop.f90

  Log Message:
  -----------
  [flang][openacc] fix bugs with default(none) checking (#149220)

A report of the following code not generating an error led to fixing two bugs in directive checking.

- We should treat CombinedConstructs as OpenACC Constructs
- We should treat DoConstruct index variables as private. 

```fortran
subroutine sub(nn)
  integer :: nn, ii
  !$acc serial loop default(none)
  do ii = 1, nn
  end do
  !$acc end serial loop
end subroutine
```
Here `nn` should be flagged as needing a data clause while `ii` should
still get one implicitly.



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