[Bug c/68173] gcc does not terminate with -O0 on source file with a very large expression

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68173

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you check if you are swapping (that is if the memory usage is high).