[Bug c++/86586] [6/7/8/9 Regression] -Wsign-compare affects code generation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86586

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That is the costly variant, the already slow C++ FE will need to compute and
instantiate a lot of things that aren't really needed.