[Bug tree-optimization/118032] [15 regression] Bootstrap slowdown for risc-v

[pheeck at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118032

--- Comment #30 from Filip Kastl <pheeck at gcc dot gnu.org> ---
(In reply to Mark Wielaard from comment #28)
> I haven't tried yet, but do you mean something like the following?
> -  /* Note: l + 1 is the number of cases of the switch.  */
> -  if (l + 1 > (unsigned) param_switch_lower_slow_alg_max_cases)
> -    return clusters.copy ();

Yes.  Exactly that.

(In reply to ak from comment #29)
> We could also implement greedy switch clustering for jump tables I think.
> Right now it's only for the switch bitmap clustering.

Yes, that would be nice to have.  Though maybe that can wait for Stage 1.