[Bug fortran/84546] [7/8 Regression] Bad sourced allocation of CLASS(*) with source with CLASS(*) component

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84546

--- Comment #5 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Sun Mar 11 22:25:11 2018
New Revision: 258438

URL: https://gcc.gnu.org/viewcvs?rev=258438&root=gcc&view=rev
Log:
2018-03-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/84546
        * trans-array.c (structure_alloc_comps): Make sure that the
        vptr is copied and that the unlimited polymorphic _len is used
        to compute the size to be allocated.
        * trans-expr.c (gfc_get_class_array_ref): If unlimited, use the
        unlimited polymorphic _len for the offset to the element.
        (gfc_copy_class_to_class): Set the new 'unlimited' argument.
        * trans.h : Add the boolean 'unlimited' to the prototype.

2018-03-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/84546
        * gfortran.dg/unlimited_polymorphic_29.f90 : New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/unlimited_polymorphic_29.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-array.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans.h
    trunk/gcc/testsuite/ChangeLog