[Bug rtl-optimization/80357] [7 Regression] ICE in model_update_limit_points_in_group, at haifa-sched.c:1982 on powerpc64le-linux-gnu

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80357

--- Comment #7 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
(In reply to Bill Schmidt from comment #6)
> That revision enabled -fsched-pressure by default, so it may have been
> latent with -fsched-pressure before then.

Yes, this is a latent bug in the "model" sched-pressure algorithm code. I can
reproduce it with r243865 (revision before I turned on -fsched-pressure for
powerpc) by adding -fsched-pressure --param sched-pressure-algorithm=2.

I'll do some digging.