http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44054
--- Comment #12 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- > > One might handle this in a more clever way, but can't you use in > > gfc_warning2, gfortran's normal "locus" and use > > linemap_position_for_column() to map from the offset to the column? > > You cannot insert new locations out of order in a line-map. Perhaps one > could create a dummy line-map, but it would be easier if the diagnostics > machinery handled arbitrary offsets, so I would favor that. Arbitrary > offsets are useful also to other FEs for some special cases anyway. > > Of course, the two things are not incompatible: 1) gfortran could use the > full linemaps for tracking column numbers, thus removing another duplication > of code and 2) for particular cases, the diagnostic machinery could handle > explicit offsets passed by gfortran. Or in other words: This PR can be fixed without gfortran tracking column-numbers using line-maps (just using an explicit offset), but you'll need that for fixing PR 53934.
