https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117100
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |13.4 Version|15.0 |13.3.0 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- /app/example.cpp:19:21: optimized: unswitching loop 3 on 'switch' with condition: compose_13(D) == 17 That seems to be missing for GCC 13.