[Bug c++/71937] out of memory on very large fuction

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71937

--- Comment #11 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
The excessive memory usage only happens when compiling without optimizations.
Using -O1 it stays below 2 GB, but takes minutes to finish.