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Re: [GOMP4, OpenACC] Fixed-form Fortran code failing to parse

From: Thomas Schwinge <thomas at codesourcery dot com>
To: <i dot usmanov at samsung dot com>, <e dot gavrin at samsung dot com>, <v dot garbuzov at samsung dot com>, <dmitry dot b at samsung dot com>, <cesar at codesourcery dot com>, <jnorris at codesourcery dot com>
Cc: <fortran at gcc dot gnu dot org>, <burnus at net-b dot de>
Date: Fri, 4 Jul 2014 10:40:00 +0200
Subject: Re: [GOMP4, OpenACC] Fixed-form Fortran code failing to parse
Authentication-results: sourceware.org; auth=none
References: <87tx6zvs5c dot fsf at schwinge dot name>

Hi!

On Wed, 02 Jul 2014 14:53:19 +0200, I wrote:
> I understand the attached fixed.f to be well-formed fixed-form Fortran
> code, but it fails to parse in OpenACC mode:

The legacy of Fortran ;-) strikes again:

    $ gcc/xgcc -Bgcc/ -Bx86_64-unknown-linux-gnu/lib{gomp,gfortran}/ -Bx86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs -Ix86_64-unknown-linux-gnu/lib{gomp,gfortran} -I../source/lib{gomp,gfortran} -Lx86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs -Wl,-rpath,"$PWD"/x86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs ../../fixed-3.f -fopenacc -c
    ../../fixed-3.f:7.6:
    
    *$ACC END PARALLEL                                                      
          1
    Error: Unclassifiable OpenACC directive at (1)

..., and again:

    $ gcc/xgcc -Bgcc/ -Bx86_64-unknown-linux-gnu/lib{gomp,gfortran}/ -Bx86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs -Ix86_64-unknown-linux-gnu/lib{gomp,gfortran} -I../source/lib{gomp,gfortran} -Lx86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs -Wl,-rpath,"$PWD"/x86_64-unknown-linux-gnu/lib{gomp,gfortran}/.libs ../../fixed-4.f -fopenacc -c
    ../../fixed-4.f:3.6:
    
    *$ACC PARALLEL                                                          
          1
    Error: Unclassifiable OpenACC directive at (1)

The corresponding OpenMP examples parse fine.


> We should then also be adding some test coverage for fixed-form mode in
> gcc/testsuite/gfortran.dg/goacc/.


GrÃÃe,
 Thomas

      IMPLICIT NONE

      INTEGER DEV

!$ACC PARALLEL
      DEV = 0
!$ACC END PARALLEL

!$ACC PARALLEL
      DEV = 0
!$ACC END PARALLEL

      END

      IMPLICIT NONE

!$ACC PARALLEL
!$ACC END PARALLEL

      END

      IMPLICIT NONE

      INTEGER DEV

!$OMP PARALLEL
      DEV = 0
!$OMP END PARALLEL

!$OMP PARALLEL
      DEV = 0
!$OMP END PARALLEL

      END

      IMPLICIT NONE

!$OMP PARALLEL
!$OMP END PARALLEL

      END

Attachment: pgpn4iQu81zeA.pgp
Description: PGP signature

Follow-Ups:
- Re: [GOMP4, OpenACC] Fixed-form Fortran code failing to parse
  - From: Cesar Philippidis

References:
- [GOMP4, OpenACC] Fixed-form Fortran code failing to parse
  - From: Thomas Schwinge

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