[Bug fortran/67938] New: ICE on using assumed rank character with some intrinsics

[Bug fortran/67938] New: ICE on using assumed rank character with some intrinsics

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67938

            Bug ID: 67938
           Summary: ICE on using assumed rank character with some
                    intrinsics
           Product: gcc
           Version: 5.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

Knowing that assumed rank is preliminary f2015, but :


$ cat z2.f90
program p
   implicit none
   character(1) :: z(3)
   call s(z)
contains
   subroutine s(x)
      character(1) :: x(..)
      print *, lbound(x, dim=1)
      print *, ubound(x, dim=1)
      print *, size(x, dim=1)
   end subroutine
end


$ gfortran -c z2.f90
z2.f90:8:0:

       print *, lbound(x, dim=1)
 1
internal compiler error: in gfc_get_descriptor_dimension, at
fortran/trans-array.c:281


$ gfortran -g -O0 -Wall -fcheck=all -fno-frontend-optimize z2.f90
z2.f90:8:0:

       print *, lbound(x, dim=1)
 1
internal compiler error: in gfc_conv_descriptor_dtype, at
fortran/trans-array.c:251

[Bug fortran/67938] ICE on using assumed rank character with some intrinsics

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67938

--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
$ cat z1.f90
program p
   implicit none
   character(1) :: z(3)
   call s(z)
contains
   subroutine s(x)
      character(1) :: x(..)
      print *, lbound(x)
      print *, ubound(x)
   end subroutine
end

$ gfortran z1.f90
z1.f90:8:0:

       print *, lbound(x)
 1
internal compiler error: in gfc_conv_descriptor_dtype, at
fortran/trans-array.c:251

---

$ cat z1s.f90
program p
   implicit none
   character(77) :: z(33)
   call s(z)
contains
   subroutine s(x)
      character(77) :: x(..)
      print *, size(x)
   end subroutine
end

$ gfortran -g -O0 -Wall -fcheck=all -fno-frontend-optimize z1s.f90
$ a.out
           0

[Bug fortran/67938] ICE on using assumed rank character with some intrinsics

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67938

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-10-13
                 CC|                            |pault at gcc dot gnu.org
     Ever confirmed|0                           |1
      Known to fail|                            |4.8.5, 4.9.3, 5.2.0, 6.0

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed from 4.8 up to trunk (6.0). The code compiles and executes if
'character' is replaced with 'integer' or 'real'. Also related to pr67894.

[Bug fortran/67938] ICE on using assumed rank character with some intrinsics

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67938

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Thomas Kथà¤nig <tkoenig@gcc.gnu.org>:

https://gcc.gnu.org/g:8d57c30611b05a89fd265f6c0a74fe829c21cd34

commit r11-879-g8d57c30611b05a89fd265f6c0a74fe829c21cd34
Author: José Rui Faustino de Sousa <jrfsousa@gmail.com>
Date:   Wed Jun 3 19:33:11 2020 +0200

    Simple patch only add assumed-rank to the list of possible attributes.

    gcc/fortran/ChangeLog:

    2020-06-03  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

            PR fortran/95214
            PR fortran/66833
            PR fortran/67938
            * trans-expr.c (gfc_maybe_dereference_var): Add assumed-rank to
            character dummy arguments list of possible attributes.

    gcc/testsuite/ChangeLog:

    2020-06-03  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

            PR fortran/95214
            PR fortran/66833
            PR fortran/67938
            * gfortran.dg/PR95214.f90: New test.

[Bug fortran/67938] ICE on using assumed rank character with some intrinsics

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67938

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tkoenig at gcc dot gnu.org
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #5 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Fixed on master, thank you for the bug report!