From: Harald Anlauf <anlauf@gmx.de>
To: fortran@gcc.gnu.org
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [Patch] Fortran: F2018 type(*),dimension(*) with scalars [PR104143]
Date: Tue, 20 Sep 2022 21:59:22 +0200 [thread overview]
Message-ID: <b9167e35-57c1-26ec-9152-487a6d5144c8@gmx.de> (raw)
In-Reply-To: <86200df9-4b14-11ca-05db-1d033870f537@codesourcery.com>
Am 20.09.22 um 13:51 schrieb Tobias Burnus:
> In several cases, one just wants to have the address where an object starts
> without requiring the detour via 'c_loc' and the (locally) required
> 'target'
> attribute.
>
> In principle, type(*),dimension(*) of TS29113 permits this, except that
> 'dimension(*)' only permits arrays and array elements but not scalars.
>
> Fortran 2018 modified this such that with 'type(*)' also scalars are
> permitted.
> (See PR for the quotes.)
>
> This patch implements this simple change. Before, implementations like MPI
> had to use '!GCC$ attribute NO_ARG_CHECK ::' in addition to
> type(*),dimension(*)
> to achieve this. In GCC, we do likewise, but that's at least inside the
> compiler,
> cf. libgomp/openacc{.f90,_lib.h}.
>
> OK for mainline?
LGTM.
Thanks for the patch!
WARNING: multiple messages have this Message-ID
From: Harald Anlauf <anlauf@gmx.de>
To: Tobias Burnus <tobias@codesourcery.com>,
gcc-patches <gcc-patches@gcc.gnu.org>,
fortran <fortran@gcc.gnu.org>
Subject: Re: [Patch] Fortran: F2018 type(*),dimension(*) with scalars [PR104143]
Date: Tue, 20 Sep 2022 21:59:22 +0200 [thread overview]
Message-ID: <b9167e35-57c1-26ec-9152-487a6d5144c8@gmx.de> (raw)
Message-ID: <20220920195922.h5B5pdmtit8vAo8bltwnEsm7tQcY6u5thzZO_HkOcVY@z> (raw)
In-Reply-To: <86200df9-4b14-11ca-05db-1d033870f537@codesourcery.com>
Am 20.09.22 um 13:51 schrieb Tobias Burnus:
> In several cases, one just wants to have the address where an object starts
> without requiring the detour via 'c_loc' and the (locally) required
> 'target'
> attribute.
>
> In principle, type(*),dimension(*) of TS29113 permits this, except that
> 'dimension(*)' only permits arrays and array elements but not scalars.
>
> Fortran 2018 modified this such that with 'type(*)' also scalars are
> permitted.
> (See PR for the quotes.)
>
> This patch implements this simple change. Before, implementations like MPI
> had to use '!GCC$ attribute NO_ARG_CHECK ::' in addition to
> type(*),dimension(*)
> to achieve this. In GCC, we do likewise, but that's at least inside the
> compiler,
> cf. libgomp/openacc{.f90,_lib.h}.
>
> OK for mainline?
LGTM.
Thanks for the patch!
next prev parent reply other threads:[~2022-09-20 19:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 11:51 Tobias Burnus
2022-09-20 19:59 ` Harald Anlauf [this message]
2022-09-20 19:59 ` Harald Anlauf
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