https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111600
--- Comment #30 from Robin Dapp <rdapp at gcc dot gnu.org> --- On my machine it is not nearly as bad as insn-emit.cc. What dominates for me with a GCC 13 host compiler is the already fixed insn-opinit problem. How long does it take for you (maybe in % of the total build)? In principle splitting it should be similar to insn-emit and mostly mechanical.