[Bug fortran/78865] [5/6/7 Regression] ICE in create_tmp_var, at gimple-expr.c:473

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78865

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.5
            Summary|ICE in create_tmp_var, at   |[5/6/7 Regression] ICE in
                   |gimple-expr.c:473           |create_tmp_var, at
                   |                            |gimple-expr.c:473

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The warning likely should go into compare_actual_formal
(the case where for f->sym == NULL there is no arg->label or vice versa).
For the actual fix, dunno if the Fortran FE has some flag that sym is a
definition rather than just implicit declaration, if not, it can be discovered
e.g. from sym->backend_decl - if it has DECL_INITIAL non-NULL, or DECL_RESULT
non-NULL, then we are looking certainly for a definition, which is too late to
be changed.

Started most likely with r162557 (r162550 doesn't ICE, r162560 ICEs).