https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70693
David Malcolm <dmalcolm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-05-10 Assignee|unassigned at gcc dot gnu.org |dmalcolm at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Confirmed on trunk. I believe it's trying to access column 8 of line 55, which I think is just 4 space characters. (In reply to David Binderman from comment #2) > Problem seems to have come back, somewhere between revisions 259747 and > 259789 Probably r259768, which added some extra checking when accessing source lines.