[Bug fortran/82257] f951: Internal compiler error segmentation fault

[lkrupp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82257

--- Comment #2 from lkrupp at gcc dot gnu.org ---
Author: lkrupp
Date: Tue Jan 16 01:09:11 2018
New Revision: 256720

URL: https://gcc.gnu.org/viewcvs?rev=256720&root=gcc&view=rev
Log:
2018-01-15  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/82257
        * interface.c (compare_rank): Don't try to retrieve CLASS_DATA
        from symbol marked unlimited polymorphic.
        * resolve.c (resolve_structure_cons): Likewise.
        * misc.c (gfc_typename): Don't dereference derived->components
        if it's NULL.

2018-01-15  Louis Krupp  <louis.krupp@zoho.com>

        PR fortran/82257
        * gfortran.dg/unlimited_polymorphic_28.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/unlimited_polymorphic_28.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/interface.c
    trunk/gcc/fortran/misc.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog