https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119303
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |7.1.0 Summary|ICE: error reporting |[12/13/14/15 Regression] |routines re-entered. in |ICE: error reporting |warning_at |routines re-entered. in |(diagnostic-global-context. |warning_at |cc:185) with -std=c++20 |(diagnostic-global-context. | |cc:185) Target Milestone|--- |12.5 Last reconfirmed| |2025-03-15 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Known to work| |6.5.0 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- With my reduced testcase, the ICE started in GCC 7. the main thing difference between the original and mine is `s/constexpr/inline/` and add a `typename` in one place that was needed before C++20.