https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111660
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2023-10-02
Target Milestone|--- |14.0
Summary|Compilation of constexpr |[14 Regression] Compilation
|function returning enum |of constexpr function
|takes exponential time with |returning enum takes
|-std=c++2a |exponential time with
| |-std=c++2a
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect r14-4140-g6851e3423c2b5e introduced the compile time slowness.