https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95574
--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> --- Gdb currently silently ignores the offending entry. I've filed a gdb PR, PR26092 - "Complain about contradictory DW_LNE_end_sequence marker" to complain about this ( https://sourceware.org/bugzilla/show_bug.cgi?id=26092 ).
