[Bug c++/70768] Increased compilation time

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70768

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
This is the file in question:

https://github.com/ericniebler/range-v3/blob/master/test/algorithm/transform.cpp