https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61250
--- Comment #13 from howarth at bromo dot med.uc.edu ---
The offending line appears to be at...
static const struct line_map*
linemap_macro_map_lookup (struct line_maps *set, source_location line)
{
unsigned int md, mn, mx;
const struct line_map *cached, *result;
if (IS_ADHOC_LOC (line))
line = set->location_adhoc_data_map.data[line & MAX_SOURCE_LOCATION].locus;
linemap_assert (line >= LINEMAPS_MACRO_LOWEST_LOCATION (set)); <=====
