[Bug c/69985] [6 Regression] ICE: in linemap_position_for_loc_and_offset, at libcpp/line-map.c:924

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69985

--- Comment #10 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #8)
> Note that this first started to ICE with r223470, which is also the first
> revision where it starts opening cmds-check.c (which also premature to me,
> because no warning is actually emitted; I'd think that it should do that
> only if the warning is actually going to be emitted and needs it, otherwise
> it is an unnecessary compile time slowdown); that ICE got later fixed in
> r224236, but later reappeared (in r230331).

I also don't think this is the same ICE that Marek fixed. It is likely that
David's changes altered something in the way the line-table is constructed and
this uncovered a different latent bug.