[Bug c/123212] [15/16 Regression] GCC 15 no longer compiles switch statements to jump tables by default with Og

[pheeck at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123212

--- Comment #4 from Filip Kastl <pheeck at gcc dot gnu.org> ---
Also, updating the documentation with information that -O0/-Og does
-fno-bit-tests and only limited jump tables would indeed be nice.