Re: [Patch] OpenMP: detach - fix firstprivate handling

[Jakub Jelinek <jakub@redhat.com>]

On Tue, May 11, 2021 at 11:54:58PM +0200, Tobias Burnus wrote:
> The sfield / firstprivate lookup used the wrong var decl
> for the lookup – hence it failed.
> I used an extra long diff to make it easier to follow why
> 'c' and not 'detach_clause' has the proper clause for the
> decl to be used as key.
> 
> Testsuite run ongoing.
> OK for mainline, when it passes?
> 
> Tobias
> 
> -----------------
> Mentor Graphics (Deutschland) GmbH, Arnulfstrasse 201, 80634 München Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Frank Thürauf

> OpenMP: detach - fix firstprivate handling 
> gcc/ChangeLog:
> 
> 	* omp-low.c (finish_taskreg_scan): Use the proper detach decl.
> 
> libgomp/ChangeLog:
> 
> 	* testsuite/libgomp.fortran/detach-1.f90: New test.

LGTM, but please add also a libgomp.c-c++-common/task-detach-12.c testcase
like:
/* { dg-do run } */
/* { dg-options "-fopenmp" } */

#include <omp.h>

int
main ()
{
  struct S { int a[7]; } s = { { 1, 2, 3, 4, 5, 6, 7 } };
  omp_event_handle_t x;
  #pragma omp parallel master
  #pragma omp task firstprivate (s) detach (x)
    {
      if (s.a[3] != 4)
        __builtin_abort ();
      omp_fulfill_event (x);
    }
  return 0;
}

Also, please backport to 11 after a while.

Thanks.

	Jakub