[Bug fortran/65381] [6/7/8 Regression] ICE during array result, assignment

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65381

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
             Status|RESOLVED                    |REOPENED
   Last reconfirmed|                            |2017-11-19
      Known to work|                            |5.5.0
         Resolution|DUPLICATE                   |---
            Summary|ICE during array result,    |[6/7/8 Regression] ICE
                   |assignment                  |during array result,
                   |                            |assignment
     Ever confirmed|0                           |1
      Known to fail|                            |6.4.0, 7.2.0, 8.0

--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Duplicate of pr54070.

Compiling the original test with gfortran 6 up to trunk gives the ICE

pr65381.f90:38:0:

         strings(:) = fixedStringTable(this)

internal compiler error: Segmentation fault: 11

My instrumented gfortran gives in addition

../../work/gcc/tree.h:3125:7: runtime error: member access within null pointer
of type 'union tree_node'

The code compiles if I replace

        class(StringTable), intent(IN) :: this(:)

with

        type(StringTable), intent(IN) :: this(:)