[Bug fortran/78226] New: Fill out location information everywhere

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78226

            Bug ID: 78226
           Summary: Fill out location information everywhere
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tkoenig at gcc dot gnu.org
  Target Milestone: ---

Created attachment 39973
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39973&action=edit
Patch to expose missing locations

It would be nice if we could consistently fill in the
location information everywhere. Missing information can
lead to bugs such as PR 69544.

I have made a separate front-end pass for finding pieces
of code where location information is not filled in
(see attachment). With this, it is rather easy to find
the offending pieces of code (sometimes less easy to
find where the location should have been set :-)

Once we have a trunk that passes cleanly with this patch,
we could then include something this pass (but only when
--enable-checking=yes is active) to make sure that when
a new piece of code is added, people don't forget the
location information.  The gfc_warning_now calls at the
moment are there so that a) the testsuite fails and b)
I can still get a dump with -fdump-fortran-original.
These would probably be changed to gfc_internal_error.