[Bug c++/127629] All optimization levels (except -O0) slow down `if consteval` and `__builtin_is_constant_evaluated()`

[ivan.lazaric.gcc at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127629

--- Comment #3 from Ivan Lazaric <ivan.lazaric.gcc at gmail dot com> ---
Also noting, if I run second compilation with a limit between the numbers
I reported, I get ~3s duration.