[Bug fortran/120784] fortran: issue with use-association renames and interface

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120784

--- Comment #8 from anlauf at gcc dot gnu.org ---
(In reply to anlauf from comment #7)
> Created attachment 61738 [details]
> New testcase
> 
> The committed patch unfortunately broke this (reduced) testcase:

We run into the following:

(gdb) p current_interface.sym->attr.use_assoc
$4 = 1
(gdb) p current_interface.sym->attr.use_rename
$5 = 1
(gdb) p current_interface.sym->ns->use_stmts->rename->local_name[0]
$13 = 0 '\000'

Looks like we need to protect from this happening...