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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/104696] [OpenMP] Implicit mapping breaks struct mapping
Date: Mon, 07 Mar 2022 13:53:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104696

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to Tobias Burnus from comment #1)
> Namely:
> ------------ test.c--------------
> struct s { int *d; };

It makes more sense to use 'int d;' to match Fortran. Doing so yields in the
gimple dump:

#pragma omp target num_teams(1) thread_limit(0)
  map(struct:x [len: 1]) map(tofrom:x.q.d [len: 4])
#pragma omp target num_teams(1) thread_limit(0)
  map(tofrom:x [len: 4194328][implicit]) map(tofrom:x.r[1].d [len: 4])

Thus, C and Fortran show the same issue.=