[Bug fortran/79426] fortran - internal compiler error: in fold_convert_loc, at fold-const.c:2251

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79426

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-02-08
                 CC|                            |dmalcolm at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Confirmed with trunk (e.g. r245213).

The ICE is a failure of this assertion, within fold_convert_loc:
2238          gcc_assert (TREE_CODE (orig) == VECTOR_TYPE
2239                      && tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE
(orig)));

where "orig" is a RECORD_TYPE

as called by fortran/trans-stmt.c:trans_associate_var:1765:

1761          /* Prevent adding a noop len= len.  */
1762          if (tmp != charlen)
1763            {
1764              gfc_add_modify (&se.pre, charlen,
1765                              fold_convert (TREE_TYPE (charlen), tmp));
1766              gfc_add_init_cleanup (block, gfc_finish_block (&se.pre),
1767                                    gfc_finish_block (&se.post));
1768            }