[Bug preprocessor/69650] [6 Regression] ICE in linemap_line_start, at libcpp/line-map.c:803

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69650

--- Comment #48 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
Try running cc1plus with valgrind to see whether that detects anything
untoward.