[Bug fortran/69859] Non-deterministic ICEs on incomplete character declaration statement

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69859

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |error-recovery,
                   |                            |ice-on-invalid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-02-18
                 CC|                            |dmalcolm at gcc dot gnu.org,
                   |                            |manu at gcc dot gnu.org
            Summary|ICE on incomplete character |Non-deterministic ICEs on
                   |declaration statement       |incomplete character
                   |                            |declaration statement
     Ever confirmed|0                           |1

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I have compiled the tests from 4.8 up to trunk (6.0). While I have seen ICEs,
it happens that sometime they are were not seen:

[Book15] f90/bug% gfortran-fsf-4.8 pr69859_2.f90
pr69859_2.f90:3.19:

      character a ,
                   1
Error: Invalid character in name at (1)
...
pr69859_2.f90:8.17:

      character f %
                 1
Error: Syntax error in data declaration at (1)
pr69859_2.f90:3.17:

      character a ,
                 1
Error: Character length of component 'a' needs to be a constant specification
expression at (1)

[Book15] f90/bug% gfortran-fsf-4.8 pr69859_2.f90
pr69859_2.f90:3.19:

      character a ,
                   1
Error: Invalid character in name at (1)
...
pr69859_2.f90:8.17:

      character f %
                 1
Error: Syntax error in data declaration at (1)
f951: internal compiler error: Segmentation fault: 11

f951: internal compiler error: Abort trap: 6
gfortran-fsf-4.8: internal compiler error: Abort trap: 6 (program f951)
Abort

[Book15] f90/bug% gfcc pr69859_3.f90
pr69859_3.f90:3:36:

       character, allocatable :: x(:) y(:)
                                    1
Error: Syntax error in data declaration at (1)
pr69859_3.f90:3:36:

       character, allocatable :: x(:) y(:)
                                    1
Error: Character length of component 'x' needs to be a constant specification
expression at (1)
[Book15] f90/bug% gfcc pr69859_3.f90
pr69859_3.f90:3:36:

       character, allocatable :: x(:) y(:)
                                    1
Error: Syntax error in data declaration at (1)
f951: internal compiler error: Segmentation fault: 11

f951: internal compiler error: Abort trap: 6
gfcc: internal compiler error: Abort trap: 6 (program f951)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

(gfcc: trunk revision 233414).