https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83620
--- Comment #6 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #4) > Or, alternatively, does --param=max-sched-ready-insns=0 make sense and is it > supportable? If not, we could just require it to be at least one. This parameter is only to constraint quadratic behaviour of the scheduler (and register live shrinkage based on it). If we ignore compilation time, there should be no maximum constraint. I believe we should have non-zero minimal value for the parameter, otherwise scheduling (and live range shrinkage) has a little sense. IMHO, 10 would be a reasonable as the minimal value (to take insns with different fixed regs like ax,dx,cx).
