[Bug fortran/94943] New: A module does not export allocatable attribute of herein arrays.

[Bug fortran/94943] New: A module does not export allocatable attribute of herein arrays.

[artu72 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

            Bug ID: 94943
           Summary: A module does not export allocatable attribute of
                    herein arrays.
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: artu72 at gmail dot com
  Target Milestone: ---

Created attachment 48438
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48438&action=edit
contains the compiler version, command line, errors, and the module file and
the routine that uses it with .s files.

A module contains several arrays with ALLOCATABLE attribute. When compiling,
the routine that uses the module complains that array is not an allocatable one
neither a pointer. 

Expected behavior (as in 9.3.1 version) : no error reported and compilation
completes.

Current behavior: error reported, as in the attachment.

I attach an archive with following files:

commandline : the command mpif90 arising the error
deallocate_vars.f90 : routine that uses the sel module
deallocate_vars.s (no .i file generated, I include this instead)
error : error issued by the compiler
sel_mod.f90 : module containing the arrays
sel_mod.s 
version : version of gfortran

mpif90 wraps as

 gfortran -I/usr/include/openmpi-x86_64 -pthread -I/usr/lib64/openmpi/lib
-Wl,-rpath -Wl,/usr/lib64/openmpi/lib -Wl,--enable-new-dtags
-L/usr/lib64/openmpi/lib -lmpi_usempif08 -lmpi_usempi_ignore_tkr -lmpi_mpifh
-lmpi

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
   Target Milestone|---                         |10.0
           Priority|P3                          |P4
      Known to work|                            |9.3.1
            Summary|A module does not export    |[10 Regression] A module
                   |allocatable attribute of    |does not export allocatable
                   |herein arrays.              |attribute of herein arrays.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[kargl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargl at gcc dot gnu.org

--- Comment #1 from kargl at gcc dot gnu.org ---
There is very little we can do without a minimum example that shows the
problem.  What you have attached cannot be compiled by anyone as
deallocate_vars.f90 contains a dozen or so USE statements and you haven't
provided those modules.  In addition, we don't do mpif90.  What happens if you
remove all of the unnecessary compiler options you use and use actually use
gfortran.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[artu72 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

--- Comment #2 from Andrea Mastellone <artu72 at gmail dot com> ---
(In reply to kargl from comment #1)
> There is very little we can do without a minimum example that shows the
> problem.  What you have attached cannot be compiled by anyone as
> deallocate_vars.f90 contains a dozen or so USE statements and you haven't
> provided those modules.  In addition, we don't do mpif90.  What happens if
> you remove all of the unnecessary compiler options you use and use actually
> use gfortran.

Ok, i will try to reduce the code to minimal part that can reproduce the
problem without using mpif90. I'll send you something asap.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[artu72 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

--- Comment #3 from Andrea Mastellone <artu72 at gmail dot com> ---
Created attachment 48460
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48460&action=edit
simple test case which reproduces the bug

Here is a simple source code replying the bug. I have attached the original
module, used by the main procedure. Compiling it (by issuing make debug or make
release) produces the error.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.0                        |10.2

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.1 has been released.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[artu72 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

--- Comment #5 from Andrea Mastellone <artu72 at gmail dot com> ---
(In reply to Jakub Jelinek from comment #4)
> GCC 10.1 has been released.

When it will be available on Fedora 32 I will test it.

[Bug fortran/94943] [10 Regression] A module does not export allocatable attribute of herein arrays.

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94943

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #6 from anlauf at gcc dot gnu.org ---
Next time please provide a testcase that works at least with another compiler.

First, I guess there's a typo: FNUM instead of FNAM

Second, FNAM is declared:

  CHARACTER(LEN=24),DIMENSION(NPA)             :: FNAM

There's nothing allocatable here.

I'm closing this as invalid.