[Bug fortran/96386] New: Internal compiler error in ASSOCIATE

[Bug fortran/96386] New: Internal compiler error in ASSOCIATE

[m.deij at marin dot nl]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96386

            Bug ID: 96386
           Summary: Internal compiler error in ASSOCIATE
           Product: gcc
           Version: 9.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: m.deij at marin dot nl
  Target Milestone: ---

The code below triggers an ICE with the message
f951: internal compiler error: find_array_spec(): Missing spec

Note that older version of the compiler (I could test 6.3.1) does not give an
ICE, but newer versions (I have access to 8.3.1 and 9.2.0) do have this
problem.

MODULE assoc

TYPE Level3
  INTEGER                      :: someNumber
END TYPE Level3

TYPE Level2
  INTEGER                      :: nLevel3
  TYPE (Level3), ALLOCATABLE   :: levels3(:)

END TYPE Level2

TYPE Level1
  INTEGER                      :: nLevel2
  TYPE (Level2), ALLOCATABLE   :: levels2(:)
END TYPE Level1

TYPE outer_type
  INTEGER                      :: nLevel1
  TYPE (Level1), ALLOCATABLE   :: levels1(:)
END TYPE outer_type

TYPE(outer_type), TARGET       :: outer

CONTAINS

SUBROUTINE internal_compiler_error_repro()

INTEGER F,B,Z

ASSOCIATE(l1 => outer%levels1 ) ! <-- this gives an ICE
!ASSOCIATE(l1 => outer%levels1(:) )  ! <-- No ICE if array spec is added
  DO F=1,outer%nLevel1
     ASSOCIATE(l2 => l1(F)%levels2 )
       DO B=1,l2(F)%nLevel3 ! <-- condition for ICE to be triggered

      END DO
     END ASSOCIATE
  END DO
END ASSOCIATE 

END SUBROUTINE internal_compiler_error_repro

END MODULE

[Bug fortran/96386] Internal compiler error in ASSOCIATE

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96386

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-07-30
     Ever confirmed|0                           |1
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |pault at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r8-3365-gb89a63b916340ef2.

[Bug fortran/96386] Internal compiler error in ASSOCIATE

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96386

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

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

--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
The code has been fixed in the meantime.  I have committed the
test case as r11-6899-g7d54cccad332074d5fb81123796239f0f61b11a7
to make sure there is no regression.

Thanks for the bug report!

[Bug fortran/96386] Internal compiler error in ASSOCIATE

[paul.richard.thomas at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96386

--- Comment #3 from paul.richard.thomas at gmail dot com <paul.richard.thomas at gmail dot com> ---
Hi Thomas,

When did it get fixed? I seem to have done so many associate fixes that I
barely know where to start - was it even me?

Lots of the recent PRs are low lying fruit. It's pleasing to see patches of
a few lines doing the job :-)

Are you on to teams now?

Cheers

Paul



On Mon, 25 Jan 2021 at 19:36, tkoenig at gcc dot gnu.org <
gcc-bugzilla@gcc.gnu.org> wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96386
>
> Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>          Resolution|---                         |FIXED
>                  CC|                            |tkoenig at gcc dot
> gnu.org
>              Status|NEW                         |RESOLVED
>
> --- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
> The code has been fixed in the meantime.  I have committed the
> test case as r11-6899-g7d54cccad332074d5fb81123796239f0f61b11a7
> to make sure there is no regression.
>
> Thanks for the bug report!
>
> --
> You are receiving this mail because:
> You are on the CC list for the bug.