[all-commits] [llvm/llvm-project] 2837fd: [flang][openacc] Allow if_present multiple times o...

[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: 2837fd7e5ad521d977fbca85a639ce7afbacdc56
      https://github.com/llvm/llvm-project/commit/2837fd7e5ad521d977fbca85a639ce7afbacdc56
  Author: Valentin Clement (バレンタイン クレメン) <clementval at gmail.com>
  Date:   2025-04-11 (Fri, 11 Apr 2025)

  Changed paths:
    M flang/test/Lower/OpenACC/acc-host-data.f90
    M flang/test/Lower/OpenACC/acc-update.f90
    M flang/test/Semantics/OpenACC/acc-host-data.f90
    M flang/test/Semantics/OpenACC/acc-update-validity.f90
    M llvm/include/llvm/Frontend/OpenACC/ACC.td

  Log Message:
  -----------
  [flang][openacc] Allow if_present multiple times on host_data and update (#135422)

Similar to #135415.

The spec has not strict restriction to allow a single `if_present`
clause on the host_data and update directives. Allowing this clause
multiple times does not change the semantic of it. This patch relax the
rules in ACC.td since there is no restriction in the standard.

The OpenACC dialect represents the `if_present` clause with a `UnitAttr`
so the attribute will be set if the is one or more `if_present` clause.



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